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-rw-r--r--.gitignore19
-rw-r--r--.gitlab-ci.yml20
-rw-r--r--.idea/codeStyles/Project.xml124
-rw-r--r--.idea/codeStyles/codeStyleConfig.xml5
-rw-r--r--.idea/compiler.xml15
-rw-r--r--.idea/copyright/Taler.xml7
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-rw-r--r--.idea/dictionaries/user.xml14
-rw-r--r--.idea/encodings.xml6
-rw-r--r--.idea/gradle.xml23
-rw-r--r--.idea/scopes/Copyright_Files.xml3
-rw-r--r--COPYING674
-rw-r--r--akono/.gitignore1
-rw-r--r--akono/build.gradle18
-rw-r--r--artwork/ic_bottom_left.svg56
-rw-r--r--artwork/ic_bottom_right.svg56
-rw-r--r--artwork/ic_launcher_cashier.svg55
-rw-r--r--build.gradle24
-rw-r--r--cashier/.gitignore1
-rw-r--r--cashier/.gitlab-ci.yml35
-rw-r--r--cashier/README.md10
-rw-r--r--cashier/build.gradle72
-rw-r--r--cashier/lint.xml4
-rw-r--r--cashier/proguard-rules.pro21
-rw-r--r--cashier/src/main/AndroidManifest.xml32
-rw-r--r--cashier/src/main/ic_launcher-web.pngbin0 -> 30434 bytes
-rw-r--r--cashier/src/main/java/net/taler/cashier/Amount.kt45
-rw-r--r--cashier/src/main/java/net/taler/cashier/BalanceFragment.kt182
-rw-r--r--cashier/src/main/java/net/taler/cashier/ConfigFragment.kt139
-rw-r--r--cashier/src/main/java/net/taler/cashier/HttpHelper.kt102
-rw-r--r--cashier/src/main/java/net/taler/cashier/MainActivity.kt62
-rw-r--r--cashier/src/main/java/net/taler/cashier/MainViewModel.kt148
-rw-r--r--cashier/src/main/java/net/taler/cashier/Utils.kt91
-rw-r--r--cashier/src/main/java/net/taler/cashier/withdraw/ErrorFragment.kt55
-rw-r--r--cashier/src/main/java/net/taler/cashier/withdraw/NfcManager.kt234
-rw-r--r--cashier/src/main/java/net/taler/cashier/withdraw/QrCodeManager.kt42
-rw-r--r--cashier/src/main/java/net/taler/cashier/withdraw/TransactionFragment.kt174
-rw-r--r--cashier/src/main/java/net/taler/cashier/withdraw/WithdrawManager.kt232
-rw-r--r--cashier/src/main/res/drawable-w550dp/ic_arrow.xml11
-rw-r--r--cashier/src/main/res/drawable/ic_arrow.xml11
-rw-r--r--cashier/src/main/res/drawable/ic_check_circle.xml10
-rw-r--r--cashier/src/main/res/drawable/ic_clear.xml9
-rw-r--r--cashier/src/main/res/drawable/ic_error.xml11
-rw-r--r--cashier/src/main/res/drawable/ic_launcher_foreground.xml15
-rw-r--r--cashier/src/main/res/drawable/ic_withdraw.xml10
-rw-r--r--cashier/src/main/res/layout-w550dp/fragment_balance.xml222
-rw-r--r--cashier/src/main/res/layout-w550dp/fragment_transaction.xml111
-rw-r--r--cashier/src/main/res/layout/activity_main.xml51
-rw-r--r--cashier/src/main/res/layout/fragment_balance.xml225
-rw-r--r--cashier/src/main/res/layout/fragment_config.xml112
-rw-r--r--cashier/src/main/res/layout/fragment_error.xml65
-rw-r--r--cashier/src/main/res/layout/fragment_transaction.xml100
-rw-r--r--cashier/src/main/res/menu/balance.xml30
-rw-r--r--cashier/src/main/res/mipmap-anydpi-v26/ic_launcher.xml5
-rw-r--r--cashier/src/main/res/mipmap-hdpi/ic_launcher.pngbin0 -> 3687 bytes
-rw-r--r--cashier/src/main/res/mipmap-mdpi/ic_launcher.pngbin0 -> 2408 bytes
-rw-r--r--cashier/src/main/res/mipmap-xhdpi/ic_launcher.pngbin0 -> 4875 bytes
-rw-r--r--cashier/src/main/res/mipmap-xxhdpi/ic_launcher.pngbin0 -> 7673 bytes
-rw-r--r--cashier/src/main/res/mipmap-xxxhdpi/ic_launcher.pngbin0 -> 10362 bytes
-rw-r--r--cashier/src/main/res/navigation/nav_graph.xml73
-rw-r--r--cashier/src/main/res/values-night/colors.xml20
-rw-r--r--cashier/src/main/res/values/colors.xml10
-rw-r--r--cashier/src/main/res/values/dimens.xml3
-rw-r--r--cashier/src/main/res/values/ic_launcher_background.xml4
-rw-r--r--cashier/src/main/res/values/strings.xml39
-rw-r--r--cashier/src/main/res/values/styles.xml28
-rw-r--r--cashier/src/main/res/xml/backup_descriptor.xml19
-rw-r--r--gradle.properties21
-rw-r--r--gradle/wrapper/gradle-wrapper.jarbin0 -> 54329 bytes
-rw-r--r--gradle/wrapper/gradle-wrapper.properties6
-rwxr-xr-xgradlew172
-rw-r--r--gradlew.bat84
-rw-r--r--merchant-terminal/.gitignore1
-rw-r--r--merchant-terminal/.gitlab-ci.yml36
-rw-r--r--merchant-terminal/build.gradle76
-rw-r--r--merchant-terminal/proguard-rules.pro21
-rw-r--r--merchant-terminal/src/main/AndroidManifest.xml56
-rw-r--r--merchant-terminal/src/main/ic_taler_logo-web.pngbin0 -> 25951 bytes
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/Amount.kt48
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/MainActivity.kt123
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/MainViewModel.kt51
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/NfcManager.kt233
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/QrCodeManager.kt42
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/Utils.kt155
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/config/ConfigFetcherFragment.kt66
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/config/ConfigManager.kt181
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/config/MerchantConfig.kt47
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/config/MerchantConfigFragment.kt165
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/config/MerchantRequest.kt41
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/history/HistoryManager.kt106
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/history/MerchantHistoryFragment.kt160
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/history/RefundFragment.kt99
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/history/RefundManager.kt111
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/history/RefundUriFragment.kt65
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/order/CategoriesFragment.kt106
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/order/Definitions.kt205
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/order/LiveOrder.kt109
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/order/OrderFragment.kt115
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/order/OrderManager.kt196
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/order/OrderStateFragment.kt213
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/order/ProductsFragment.kt111
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/payment/Payment.kt29
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/payment/PaymentManager.kt154
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/payment/PaymentSuccessFragment.kt44
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/payment/ProcessPaymentFragment.kt96
-rw-r--r--merchant-terminal/src/main/res/color/button_bottom.xml5
-rw-r--r--merchant-terminal/src/main/res/drawable/ic_cash_refund.xml9
-rw-r--r--merchant-terminal/src/main/res/drawable/ic_check_circle.xml10
-rw-r--r--merchant-terminal/src/main/res/drawable/ic_history_black_24dp.xml9
-rw-r--r--merchant-terminal/src/main/res/drawable/ic_launcher_background.xml74
-rw-r--r--merchant-terminal/src/main/res/drawable/ic_menu_manage.xml9
-rw-r--r--merchant-terminal/src/main/res/drawable/ic_move_money_24dp.xml9
-rw-r--r--merchant-terminal/src/main/res/drawable/selectable_background.xml5
-rw-r--r--merchant-terminal/src/main/res/drawable/side_nav_bar.xml9
-rw-r--r--merchant-terminal/src/main/res/layout/activity_main.xml42
-rw-r--r--merchant-terminal/src/main/res/layout/app_bar_main.xml53
-rw-r--r--merchant-terminal/src/main/res/layout/fragment_categories.xml46
-rw-r--r--merchant-terminal/src/main/res/layout/fragment_config_fetcher.xml45
-rw-r--r--merchant-terminal/src/main/res/layout/fragment_merchant_config.xml152
-rw-r--r--merchant-terminal/src/main/res/layout/fragment_merchant_history.xml29
-rw-r--r--merchant-terminal/src/main/res/layout/fragment_order.xml138
-rw-r--r--merchant-terminal/src/main/res/layout/fragment_order_state.xml52
-rw-r--r--merchant-terminal/src/main/res/layout/fragment_payment_success.xml78
-rw-r--r--merchant-terminal/src/main/res/layout/fragment_process_payment.xml110
-rw-r--r--merchant-terminal/src/main/res/layout/fragment_products.xml44
-rw-r--r--merchant-terminal/src/main/res/layout/fragment_refund.xml122
-rw-r--r--merchant-terminal/src/main/res/layout/fragment_refund_uri.xml93
-rw-r--r--merchant-terminal/src/main/res/layout/list_item_category.xml33
-rw-r--r--merchant-terminal/src/main/res/layout/list_item_history.xml97
-rw-r--r--merchant-terminal/src/main/res/layout/list_item_order.xml61
-rw-r--r--merchant-terminal/src/main/res/layout/list_item_product.xml56
-rw-r--r--merchant-terminal/src/main/res/layout/nav_header_main.xml55
-rw-r--r--merchant-terminal/src/main/res/menu/activity_main_drawer.xml36
-rw-r--r--merchant-terminal/src/main/res/mipmap-anydpi-v26/ic_taler_logo.xml5
-rw-r--r--merchant-terminal/src/main/res/mipmap-anydpi-v26/ic_taler_logo_round.xml5
-rw-r--r--merchant-terminal/src/main/res/mipmap-hdpi/ic_launcher_foreground.pngbin0 -> 4307 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-hdpi/ic_taler_logo.pngbin0 -> 2347 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-hdpi/ic_taler_logo_round.pngbin0 -> 3638 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-mdpi/ic_launcher_foreground.pngbin0 -> 2625 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-mdpi/ic_taler_logo.pngbin0 -> 1532 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-mdpi/ic_taler_logo_round.pngbin0 -> 2240 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-xhdpi/ic_launcher_foreground.pngbin0 -> 6077 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-xhdpi/ic_taler_logo.pngbin0 -> 3336 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-xhdpi/ic_taler_logo_round.pngbin0 -> 5273 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.pngbin0 -> 10228 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-xxhdpi/ic_taler_logo.pngbin0 -> 5422 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-xxhdpi/ic_taler_logo_round.pngbin0 -> 8454 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.pngbin0 -> 14083 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-xxxhdpi/ic_taler_logo.pngbin0 -> 7786 bytes
-rw-r--r--merchant-terminal/src/main/res/mipmap-xxxhdpi/ic_taler_logo_round.pngbin0 -> 12377 bytes
-rw-r--r--merchant-terminal/src/main/res/navigation/nav_graph.xml137
-rw-r--r--merchant-terminal/src/main/res/values-night/colors.xml5
-rw-r--r--merchant-terminal/src/main/res/values/colors.xml14
-rw-r--r--merchant-terminal/src/main/res/values/dimens.xml6
-rw-r--r--merchant-terminal/src/main/res/values/strings.xml68
-rw-r--r--merchant-terminal/src/main/res/values/styles.xml21
-rw-r--r--merchant-terminal/src/main/res/xml/backup_descriptor.xml4
-rw-r--r--merchant-terminal/src/test/java/net/taler/merchantpos/order/OrderManagerTest.kt151
-rw-r--r--nightly-stats.patch38
-rw-r--r--settings.gradle17
-rw-r--r--wallet/.gitignore2
-rw-r--r--wallet/.gitlab-ci.yml42
-rw-r--r--wallet/README.md40
-rw-r--r--wallet/build.gradle81
-rw-r--r--wallet/proguard-rules.pro21
-rw-r--r--wallet/src/androidTest/java/net/taler/wallet/ExampleInstrumentedTest.kt38
-rw-r--r--wallet/src/main/AndroidManifest.xml81
-rw-r--r--wallet/src/main/ic_launcher-web.pngbin0 -> 14129 bytes
-rw-r--r--wallet/src/main/java/net/taler/wallet/Amount.kt141
-rw-r--r--wallet/src/main/java/net/taler/wallet/BalanceFragment.kt198
-rw-r--r--wallet/src/main/java/net/taler/wallet/HostCardEmulatorService.kt187
-rw-r--r--wallet/src/main/java/net/taler/wallet/MainActivity.kt209
-rw-r--r--wallet/src/main/java/net/taler/wallet/Settings.kt140
-rw-r--r--wallet/src/main/java/net/taler/wallet/Utils.kt40
-rw-r--r--wallet/src/main/java/net/taler/wallet/WalletViewModel.kt124
-rw-r--r--wallet/src/main/java/net/taler/wallet/backend/WalletBackendApi.kt141
-rw-r--r--wallet/src/main/java/net/taler/wallet/backend/WalletBackendService.kt239
-rw-r--r--wallet/src/main/java/net/taler/wallet/crypto/Encoding.kt134
-rw-r--r--wallet/src/main/java/net/taler/wallet/history/HistoryEvent.kt452
-rw-r--r--wallet/src/main/java/net/taler/wallet/history/HistoryManager.kt71
-rw-r--r--wallet/src/main/java/net/taler/wallet/history/JsonDialogFragment.kt50
-rw-r--r--wallet/src/main/java/net/taler/wallet/history/ReserveTransaction.kt58
-rw-r--r--wallet/src/main/java/net/taler/wallet/history/WalletHistoryAdapter.kt243
-rw-r--r--wallet/src/main/java/net/taler/wallet/history/WalletHistoryFragment.kt115
-rw-r--r--wallet/src/main/java/net/taler/wallet/payment/AlreadyPaidFragment.kt47
-rw-r--r--wallet/src/main/java/net/taler/wallet/payment/ContractTerms.kt56
-rw-r--r--wallet/src/main/java/net/taler/wallet/payment/PaymentManager.kt160
-rw-r--r--wallet/src/main/java/net/taler/wallet/payment/PaymentSuccessfulFragment.kt49
-rw-r--r--wallet/src/main/java/net/taler/wallet/payment/ProductAdapter.kt92
-rw-r--r--wallet/src/main/java/net/taler/wallet/payment/ProductImageFragment.kt52
-rw-r--r--wallet/src/main/java/net/taler/wallet/payment/PromptPaymentFragment.kt168
-rw-r--r--wallet/src/main/java/net/taler/wallet/pending/PendingOperationsFragment.kt180
-rw-r--r--wallet/src/main/java/net/taler/wallet/pending/PendingOperationsManager.kt64
-rw-r--r--wallet/src/main/java/net/taler/wallet/withdraw/ErrorFragment.kt64
-rw-r--r--wallet/src/main/java/net/taler/wallet/withdraw/PromptWithdrawFragment.kt109
-rw-r--r--wallet/src/main/java/net/taler/wallet/withdraw/ReviewExchangeTosFragment.kt80
-rw-r--r--wallet/src/main/java/net/taler/wallet/withdraw/WithdrawManager.kt209
-rw-r--r--wallet/src/main/java/net/taler/wallet/withdraw/WithdrawSuccessfulFragment.kt44
-rw-r--r--wallet/src/main/res/drawable/history_payment_aborted.xml25
-rw-r--r--wallet/src/main/res/drawable/history_refresh.xml28
-rw-r--r--wallet/src/main/res/drawable/history_refund.xml25
-rw-r--r--wallet/src/main/res/drawable/history_tip_accepted.xml25
-rw-r--r--wallet/src/main/res/drawable/history_tip_declined.xml25
-rw-r--r--wallet/src/main/res/drawable/history_withdrawn.xml25
-rw-r--r--wallet/src/main/res/drawable/ic_account_balance.xml25
-rw-r--r--wallet/src/main/res/drawable/ic_account_balance_wallet.xml9
-rw-r--r--wallet/src/main/res/drawable/ic_add_circle.xml25
-rw-r--r--wallet/src/main/res/drawable/ic_cancel.xml25
-rw-r--r--wallet/src/main/res/drawable/ic_cash_usd_outline.xml25
-rw-r--r--wallet/src/main/res/drawable/ic_check_circle.xml26
-rw-r--r--wallet/src/main/res/drawable/ic_directions.xml25
-rw-r--r--wallet/src/main/res/drawable/ic_error.xml25
-rw-r--r--wallet/src/main/res/drawable/ic_history_black_24dp.xml25
-rw-r--r--wallet/src/main/res/drawable/ic_home_black_24dp.xml25
-rw-r--r--wallet/src/main/res/drawable/ic_launcher_foreground.xml68
-rw-r--r--wallet/src/main/res/drawable/ic_scan_qr.xml10
-rw-r--r--wallet/src/main/res/drawable/ic_settings.xml9
-rw-r--r--wallet/src/main/res/drawable/ic_sync.xml9
-rw-r--r--wallet/src/main/res/drawable/pending_border.xml37
-rw-r--r--wallet/src/main/res/drawable/side_nav_bar.xml24
-rw-r--r--wallet/src/main/res/layout-w550dp/payment_bottom_bar.xml123
-rw-r--r--wallet/src/main/res/layout/activity_main.xml40
-rw-r--r--wallet/src/main/res/layout/app_bar_main.xml75
-rw-r--r--wallet/src/main/res/layout/fragment_already_paid.xml52
-rw-r--r--wallet/src/main/res/layout/fragment_error.xml97
-rw-r--r--wallet/src/main/res/layout/fragment_json.xml41
-rw-r--r--wallet/src/main/res/layout/fragment_payment_successful.xml63
-rw-r--r--wallet/src/main/res/layout/fragment_pending_operations.xml34
-rw-r--r--wallet/src/main/res/layout/fragment_product_image.xml24
-rw-r--r--wallet/src/main/res/layout/fragment_prompt_payment.xml44
-rw-r--r--wallet/src/main/res/layout/fragment_prompt_withdraw.xml171
-rw-r--r--wallet/src/main/res/layout/fragment_review_exchange_tos.xml105
-rw-r--r--wallet/src/main/res/layout/fragment_settings.xml104
-rw-r--r--wallet/src/main/res/layout/fragment_show_balance.xml91
-rw-r--r--wallet/src/main/res/layout/fragment_show_history.xml47
-rw-r--r--wallet/src/main/res/layout/fragment_withdraw_successful.xml63
-rw-r--r--wallet/src/main/res/layout/history_payment.xml87
-rw-r--r--wallet/src/main/res/layout/history_receive.xml105
-rw-r--r--wallet/src/main/res/layout/history_row.xml73
-rw-r--r--wallet/src/main/res/layout/list_item_balance.xml77
-rw-r--r--wallet/src/main/res/layout/list_item_product.xml75
-rw-r--r--wallet/src/main/res/layout/list_item_product_single.xml78
-rw-r--r--wallet/src/main/res/layout/nav_header_main.xml73
-rw-r--r--wallet/src/main/res/layout/payment_bottom_bar.xml123
-rw-r--r--wallet/src/main/res/layout/payment_details.xml119
-rw-r--r--wallet/src/main/res/layout/pending_row.xml48
-rw-r--r--wallet/src/main/res/menu/activity_main_drawer.xml41
-rw-r--r--wallet/src/main/res/menu/balance.xml28
-rw-r--r--wallet/src/main/res/menu/history.xml31
-rw-r--r--wallet/src/main/res/menu/pending_operations.xml24
-rw-r--r--wallet/src/main/res/mipmap-anydpi-v26/ic_launcher.xml21
-rw-r--r--wallet/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml21
-rw-r--r--wallet/src/main/res/mipmap-hdpi/ic_launcher.pngbin0 -> 1611 bytes
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-rw-r--r--wallet/src/main/res/mipmap-xhdpi/ic_launcher.pngbin0 -> 2314 bytes
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-rw-r--r--wallet/src/main/res/mipmap-xxhdpi/ic_launcher_round.pngbin0 -> 6328 bytes
-rw-r--r--wallet/src/main/res/mipmap-xxxhdpi/ic_launcher.pngbin0 -> 4592 bytes
-rw-r--r--wallet/src/main/res/mipmap-xxxhdpi/ic_launcher_round.pngbin0 -> 8828 bytes
-rw-r--r--wallet/src/main/res/navigation/nav_graph.xml125
-rw-r--r--wallet/src/main/res/values/colors.xml25
-rw-r--r--wallet/src/main/res/values/dimens.xml24
-rw-r--r--wallet/src/main/res/values/ic_launcher_background.xml20
-rw-r--r--wallet/src/main/res/values/strings.xml105
-rw-r--r--wallet/src/main/res/values/styles.xml46
-rw-r--r--wallet/src/main/res/xml/apduservice.xml25
-rw-r--r--wallet/src/main/res/xml/backup_descriptor.xml20
-rw-r--r--wallet/src/test/java/net/taler/wallet/ExampleUnitTest.kt33
-rw-r--r--wallet/src/test/java/net/taler/wallet/crypto/Base32CrockfordTest.kt35
-rw-r--r--wallet/src/test/java/net/taler/wallet/history/HistoryEventTest.kt459
-rw-r--r--wallet/src/test/java/net/taler/wallet/history/ReserveTransactionTest.kt52
274 files changed, 17431 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..52aa44f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,19 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/misc.xml
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+/.idea/runConfigurations.xml
+/.idea/vcs.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+/akono/akono.aar
+/*/release/
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..e51d33b
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,20 @@
+image: registry.gitlab.com/fdroid/ci-images-client:latest
+
+cache:
+ paths:
+ - .gradle/wrapper
+ - .gradle/caches
+
+stages:
+ - test
+ - deploy
+
+include:
+ - local: 'cashier/.gitlab-ci.yml'
+ - local: 'merchant-terminal/.gitlab-ci.yml'
+ - local: 'wallet/.gitlab-ci.yml'
+
+after_script:
+ # this file changes every time but should not be cached
+ - rm -f $GRADLE_USER_HOME/caches/modules-2/modules-2.lock
+ - rm -fr $GRADLE_USER_HOME/caches/*/plugin-resolution/
diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
new file mode 100644
index 0000000..26724fb
--- /dev/null
+++ b/.idea/codeStyles/Project.xml
@@ -0,0 +1,124 @@
+<component name="ProjectCodeStyleConfiguration">
+ <code_scheme name="Project" version="173">
+ <JetCodeStyleSettings>
+ <option name="NAME_COUNT_TO_USE_STAR_IMPORT" value="2147483647" />
+ <option name="NAME_COUNT_TO_USE_STAR_IMPORT_FOR_MEMBERS" value="2147483647" />
+ <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+ </JetCodeStyleSettings>
+ <codeStyleSettings language="XML">
+ <indentOptions>
+ <option name="CONTINUATION_INDENT_SIZE" value="4" />
+ </indentOptions>
+ <arrangement>
+ <rules>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>xmlns:android</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>^$</XML_NAMESPACE>
+ </AND>
+ </match>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>xmlns:.*</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>^$</XML_NAMESPACE>
+ </AND>
+ </match>
+ <order>BY_NAME</order>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>.*:id</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+ </AND>
+ </match>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>.*:name</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+ </AND>
+ </match>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>name</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>^$</XML_NAMESPACE>
+ </AND>
+ </match>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>style</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>^$</XML_NAMESPACE>
+ </AND>
+ </match>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>.*</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>^$</XML_NAMESPACE>
+ </AND>
+ </match>
+ <order>BY_NAME</order>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>.*</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+ </AND>
+ </match>
+ <order>ANDROID_ATTRIBUTE_ORDER</order>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>.*</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>.*</XML_NAMESPACE>
+ </AND>
+ </match>
+ <order>BY_NAME</order>
+ </rule>
+ </section>
+ </rules>
+ </arrangement>
+ </codeStyleSettings>
+ <codeStyleSettings language="kotlin">
+ <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+ </codeStyleSettings>
+ </code_scheme>
+</component> \ No newline at end of file
diff --git a/.idea/codeStyles/codeStyleConfig.xml b/.idea/codeStyles/codeStyleConfig.xml
new file mode 100644
index 0000000..79ee123
--- /dev/null
+++ b/.idea/codeStyles/codeStyleConfig.xml
@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+ <state>
+ <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+ </state>
+</component> \ No newline at end of file
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
new file mode 100644
index 0000000..40ed937
--- /dev/null
+++ b/.idea/compiler.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+ <component name="CompilerConfiguration">
+ <wildcardResourcePatterns>
+ <entry name="!?*.java" />
+ <entry name="!?*.form" />
+ <entry name="!?*.class" />
+ <entry name="!?*.groovy" />
+ <entry name="!?*.scala" />
+ <entry name="!?*.flex" />
+ <entry name="!?*.kt" />
+ <entry name="!?*.clj" />
+ </wildcardResourcePatterns>
+ </component>
+</project> \ No newline at end of file
diff --git a/.idea/copyright/Taler.xml b/.idea/copyright/Taler.xml
new file mode 100644
index 0000000..96abfa5
--- /dev/null
+++ b/.idea/copyright/Taler.xml
@@ -0,0 +1,7 @@
+<component name="CopyrightManager">
+ <copyright>
+ <option name="keyword" value="(Copyright|Public License)" />
+ <option name="notice" value="This file is part of GNU Taler&#10;(C) &amp;#36;today.year Taler Systems S.A.&#10;&#10;GNU Taler is free software; you can redistribute it and/or modify it under the&#10;terms of the GNU General Public License as published by the Free Software&#10;Foundation; either version 3, or (at your option) any later version.&#10;&#10;GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY&#10;WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR&#10;A PARTICULAR PURPOSE. See the GNU General Public License for more details.&#10;&#10;You should have received a copy of the GNU General Public License along with&#10;GNU Taler; see the file COPYING. If not, see &lt;http://www.gnu.org/licenses/&gt;" />
+ <option name="myName" value="Taler" />
+ </copyright>
+</component> \ No newline at end of file
diff --git a/.idea/copyright/profiles_settings.xml b/.idea/copyright/profiles_settings.xml
new file mode 100644
index 0000000..31766eb
--- /dev/null
+++ b/.idea/copyright/profiles_settings.xml
@@ -0,0 +1,7 @@
+<component name="CopyrightManager">
+ <settings default="Taler">
+ <module2copyright>
+ <element module="Copyright Files" copyright="Taler" />
+ </module2copyright>
+ </settings>
+</component> \ No newline at end of file
diff --git a/.idea/dictionaries/user.xml b/.idea/dictionaries/user.xml
new file mode 100644
index 0000000..4693d75
--- /dev/null
+++ b/.idea/dictionaries/user.xml
@@ -0,0 +1,14 @@
+<component name="ProjectDictionaryState">
+ <dictionary name="user">
+ <words>
+ <w>abcdef</w>
+ <w>aiddescription</w>
+ <w>akono</w>
+ <w>apdu</w>
+ <w>servicedesc</w>
+ <w>snackbar</w>
+ <w>taler</w>
+ <w>testkudos</w>
+ </words>
+ </dictionary>
+</component>
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 0000000..97626ba
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+ <component name="Encoding">
+ <file url="PROJECT" charset="UTF-8" />
+ </component>
+</project> \ No newline at end of file
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
new file mode 100644
index 0000000..65dee6e
--- /dev/null
+++ b/.idea/gradle.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+ <component name="GradleMigrationSettings" migrationVersion="1" />
+ <component name="GradleSettings">
+ <option name="linkedExternalProjectsSettings">
+ <GradleProjectSettings>
+ <option name="testRunner" value="PLATFORM" />
+ <option name="distributionType" value="DEFAULT_WRAPPED" />
+ <option name="externalProjectPath" value="$PROJECT_DIR$" />
+ <option name="modules">
+ <set>
+ <option value="$PROJECT_DIR$" />
+ <option value="$PROJECT_DIR$/akono" />
+ <option value="$PROJECT_DIR$/cashier" />
+ <option value="$PROJECT_DIR$/merchant-terminal" />
+ <option value="$PROJECT_DIR$/wallet" />
+ </set>
+ </option>
+ <option name="resolveModulePerSourceSet" value="false" />
+ </GradleProjectSettings>
+ </option>
+ </component>
+</project> \ No newline at end of file
diff --git a/.idea/scopes/Copyright_Files.xml b/.idea/scopes/Copyright_Files.xml
new file mode 100644
index 0000000..d0ebcb8
--- /dev/null
+++ b/.idea/scopes/Copyright_Files.xml
@@ -0,0 +1,3 @@
+<component name="DependencyValidationManager">
+ <scope name="Copyright Files" pattern="file[cashier]:src/main/java//*||file[cashier]:src/main/res/layout//*||file[cashier]:src/main/res/layout-w550dp//*||file[merchant-terminal]:src/main/java//*||file[merchant-terminal]:src/main/res/layout//*||file[wallet]:src/main/java//*||file[wallet]:src/main/res/layout//*||file[wallet]:src/main/res/layout-w550dp//*" />
+</component> \ No newline at end of file
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..94a9ed0
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+ To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights. Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too, receive
+or can get the source code. And you must show them these terms so they
+know their rights.
+
+ Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+ For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+ Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so. This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software. The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable. Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products. If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+ Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary. To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ TERMS AND CONDITIONS
+
+ 0. Definitions.
+
+ "This License" refers to version 3 of the GNU General Public License.
+
+ "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+ "The Program" refers to any copyrightable work licensed under this
+License. Each licensee is addressed as "you". "Licensees" and
+"recipients" may be individuals or organizations.
+
+ To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy. The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+ A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+ To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+ To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+ An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
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+ 1. Source Code.
+
+ The "source code" for a work means the preferred form of the work
+for making modifications to it. "Object code" means any non-source
+form of a work.
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+ The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
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+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
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+ The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
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+ The Corresponding Source for a work in source code form is that
+same work.
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+ 2. Basic Permissions.
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+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+ You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force. You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
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+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+ Conveying under any other circumstances is permitted solely under
+the conditions stated below. Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+ 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+ No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+ When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+ 4. Conveying Verbatim Copies.
+
+ You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+ You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
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+ 5. Conveying Modified Source Versions.
+
+ You may convey a work based on the Program, or the modifications to
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+terms of section 4, provided that you also meet all of these conditions:
+
+ a) The work must carry prominent notices stating that you modified
+ it, and giving a relevant date.
+
+ b) The work must carry prominent notices stating that it is
+ released under this License and any conditions added under section
+ 7. This requirement modifies the requirement in section 4 to
+ "keep intact all notices".
+
+ c) You must license the entire work, as a whole, under this
+ License to anyone who comes into possession of a copy. This
+ License will therefore apply, along with any applicable section 7
+ additional terms, to the whole of the work, and all its parts,
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+ permission to license the work in any other way, but it does not
+ invalidate such permission if you have separately received it.
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+ d) If the work has interactive user interfaces, each must display
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+ interfaces that do not display Appropriate Legal Notices, your
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+works, which are not by their nature extensions of the covered work,
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+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit. Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
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+ You may convey a covered work in object code form under the terms
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+
+ e) Convey the object code using peer-to-peer transmission, provided
+ you inform other peers where the object code and Corresponding
+ Source of the work are being offered to the general public at no
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+ A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
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+typical or common use of that class of product, regardless of the status
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+is a consumer product regardless of whether the product has substantial
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+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source. The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
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+ If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information. But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
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+ The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
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+the User Product in which it has been modified or installed. Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
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+ Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+ 7. Additional Terms.
+
+ "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law. If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+ When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it. (Additional permissions may be written to require their own
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+ Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+ a) Disclaiming warranty or limiting liability differently from the
+ terms of sections 15 and 16 of this License; or
+
+ b) Requiring preservation of specified reasonable legal notices or
+ author attributions in that material or in the Appropriate Legal
+ Notices displayed by works containing it; or
+
+ c) Prohibiting misrepresentation of the origin of that material, or
+ requiring that modified versions of such material be marked in
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+ d) Limiting the use for publicity purposes of names of licensors or
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+
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+
+ All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10. If the Program as you
+received it, or any part of it, contains a notice stating that it is
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+restriction, you may remove that term. If a license document contains
+a further restriction but permits relicensing or conveying under this
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+of that license document, provided that the further restriction does
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+
+ If you add terms to a covered work in accord with this section, you
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+
+ Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+ 8. Termination.
+
+ You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+ However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+ Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+ Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+ 9. Acceptance Not Required for Having Copies.
+
+ You are not required to accept this License in order to receive or
+run a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
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+covered work, you indicate your acceptance of this License to do so.
+
+ 10. Automatic Licensing of Downstream Recipients.
+
+ Each time you convey a covered work, the recipient automatically
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+propagate that work, subject to this License. You are not responsible
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+
+ An "entity transaction" is a transaction transferring control of an
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+
+ You may not impose any further restrictions on the exercise of the
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+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+ 11. Patents.
+
+ A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+ A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+ Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+ In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+ If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+ If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+ A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License. You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all. For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+ 13. Use with the GNU Affero General Public License.
+
+ Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/akono/.gitignore b/akono/.gitignore
new file mode 100644
index 0000000..796b96d
--- /dev/null
+++ b/akono/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/akono/build.gradle b/akono/build.gradle
new file mode 100644
index 0000000..45fbf89
--- /dev/null
+++ b/akono/build.gradle
@@ -0,0 +1,18 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+configurations.maybeCreate("default")
+artifacts.add("default", file('akono.aar')) \ No newline at end of file
diff --git a/artwork/ic_bottom_left.svg b/artwork/ic_bottom_left.svg
new file mode 100644
index 0000000..c3aa7e4
--- /dev/null
+++ b/artwork/ic_bottom_left.svg
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+ xmlns:dc="http://purl.org/dc/elements/1.1/"
+ xmlns:cc="http://creativecommons.org/ns#"
+ xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+ xmlns:svg="http://www.w3.org/2000/svg"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+ xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+ height="24"
+ version="1.1"
+ viewBox="0 0 24 24"
+ width="24"
+ id="svg4"
+ sodipodi:docname="ic_bottom_left.svg"
+ inkscape:version="0.92.4 (unknown)">
+ <metadata
+ id="metadata10">
+ <rdf:RDF>
+ <cc:Work
+ rdf:about="">
+ <dc:format>image/svg+xml</dc:format>
+ <dc:type
+ rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+ <dc:title></dc:title>
+ </cc:Work>
+ </rdf:RDF>
+ </metadata>
+ <defs
+ id="defs8" />
+ <sodipodi:namedview
+ pagecolor="#ffffff"
+ bordercolor="#666666"
+ borderopacity="1"
+ objecttolerance="10"
+ gridtolerance="10"
+ guidetolerance="10"
+ inkscape:pageopacity="0"
+ inkscape:pageshadow="2"
+ inkscape:window-width="1920"
+ inkscape:window-height="982"
+ id="namedview6"
+ showgrid="false"
+ inkscape:zoom="9.8333333"
+ inkscape:cx="-10.728814"
+ inkscape:cy="12"
+ inkscape:window-x="1920"
+ inkscape:window-y="72"
+ inkscape:window-maximized="0"
+ inkscape:current-layer="svg4" />
+ <path
+ d="M 20,5.41 18.59,4 7,15.59 V 9 H 5 V 19 H 15 V 17 H 8.41"
+ id="path2"
+ inkscape:connector-curvature="0"
+ style="fill:#000000" />
+</svg>
diff --git a/artwork/ic_bottom_right.svg b/artwork/ic_bottom_right.svg
new file mode 100644
index 0000000..26869ba
--- /dev/null
+++ b/artwork/ic_bottom_right.svg
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+ xmlns:dc="http://purl.org/dc/elements/1.1/"
+ xmlns:cc="http://creativecommons.org/ns#"
+ xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+ xmlns:svg="http://www.w3.org/2000/svg"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+ xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+ height="24"
+ version="1.1"
+ viewBox="0 0 24 24"
+ width="24"
+ id="svg4"
+ sodipodi:docname="ic_bottom_right.svg"
+ inkscape:version="0.92.4 (unknown)">
+ <metadata
+ id="metadata10">
+ <rdf:RDF>
+ <cc:Work
+ rdf:about="">
+ <dc:format>image/svg+xml</dc:format>
+ <dc:type
+ rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+ <dc:title></dc:title>
+ </cc:Work>
+ </rdf:RDF>
+ </metadata>
+ <defs
+ id="defs8" />
+ <sodipodi:namedview
+ pagecolor="#ffffff"
+ bordercolor="#666666"
+ borderopacity="1"
+ objecttolerance="10"
+ gridtolerance="10"
+ guidetolerance="10"
+ inkscape:pageopacity="0"
+ inkscape:pageshadow="2"
+ inkscape:window-width="1920"
+ inkscape:window-height="982"
+ id="namedview6"
+ showgrid="false"
+ inkscape:zoom="9.8333333"
+ inkscape:cx="-10.728814"
+ inkscape:cy="12"
+ inkscape:window-x="1920"
+ inkscape:window-y="72"
+ inkscape:window-maximized="0"
+ inkscape:current-layer="svg4" />
+ <path
+ d="M 5,5.41 6.41,4 18,15.59 V 9 h 2 V 19 H 10 v -2 h 6.59"
+ id="path2"
+ inkscape:connector-curvature="0"
+ style="fill:#000000" />
+</svg>
diff --git a/artwork/ic_launcher_cashier.svg b/artwork/ic_launcher_cashier.svg
new file mode 100644
index 0000000..4868fe4
--- /dev/null
+++ b/artwork/ic_launcher_cashier.svg
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+ xmlns:dc="http://purl.org/dc/elements/1.1/"
+ xmlns:cc="http://creativecommons.org/ns#"
+ xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+ xmlns:svg="http://www.w3.org/2000/svg"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+ xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+ version="1.1"
+ width="24"
+ height="24"
+ viewBox="0 0 24 24"
+ id="svg4"
+ sodipodi:docname="ic_launcher.svg"
+ inkscape:version="0.92.4 (unknown)">
+ <metadata
+ id="metadata10">
+ <rdf:RDF>
+ <cc:Work
+ rdf:about="">
+ <dc:format>image/svg+xml</dc:format>
+ <dc:type
+ rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+ <dc:title></dc:title>
+ </cc:Work>
+ </rdf:RDF>
+ </metadata>
+ <defs
+ id="defs8" />
+ <sodipodi:namedview
+ pagecolor="#000000"
+ bordercolor="#666666"
+ borderopacity="1"
+ objecttolerance="10"
+ gridtolerance="10"
+ guidetolerance="10"
+ inkscape:pageopacity="0"
+ inkscape:pageshadow="2"
+ inkscape:window-width="1920"
+ inkscape:window-height="982"
+ id="namedview6"
+ showgrid="false"
+ inkscape:zoom="9.8333335"
+ inkscape:cx="-21.143993"
+ inkscape:cy="20.1778"
+ inkscape:window-x="1920"
+ inkscape:window-y="72"
+ inkscape:window-maximized="0"
+ inkscape:current-layer="svg4" />
+ <path
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L 9.4746094 19.626953 L 9.1054688 19.626953 z "
+ id="path2"
+ style="fill:#f9f9f9;fill-opacity:1" />
+</svg>
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..f286dfe
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,24 @@
+buildscript {
+ ext.kotlin_version = '1.3.70'
+ ext.nav_version = "2.2.1"
+ repositories {
+ google()
+ jcenter()
+ }
+ dependencies {
+ classpath 'com.android.tools.build:gradle:3.6.1'
+ classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+ classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
+ }
+}
+
+allprojects {
+ repositories {
+ google()
+ jcenter()
+ }
+}
+
+task clean(type: Delete) {
+ delete rootProject.buildDir
+}
diff --git a/cashier/.gitignore b/cashier/.gitignore
new file mode 100644
index 0000000..796b96d
--- /dev/null
+++ b/cashier/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/cashier/.gitlab-ci.yml b/cashier/.gitlab-ci.yml
new file mode 100644
index 0000000..f8cc7f3
--- /dev/null
+++ b/cashier/.gitlab-ci.yml
@@ -0,0 +1,35 @@
+image: registry.gitlab.com/fdroid/ci-images-client:latest
+
+cashier_test:
+ stage: test
+ only:
+ changes:
+ - "cashier"
+ script: ./gradlew :cashier:lint :cashier:assembleRelease
+
+cashier_deploy_nightly:
+ stage: deploy
+ only:
+ refs:
+ - master
+ changes:
+ - "cashier"
+ script:
+ # Ensure that key exists
+ - test -z "$DEBUG_KEYSTORE" && exit 0
+ # Rename nightly app
+ - sed -i
+ 's,<string name="app_name">.*</string>,<string name="app_name">Cashier Nightly</string>,'
+ cashier/src/main/res/values*/strings.xml
+ # Set time-based version code
+ - export versionCode=$(date '+%s')
+ - sed -i "s,^\(\s*versionCode\) *[0-9].*,\1 $versionCode," cashier/build.gradle
+ # Set nightly application ID
+ - sed -i "s,^\(\s*applicationId\) \"*[a-z\.].*\",\1 \"net.taler.cashier.nightly\"," cashier/build.gradle
+ # Build the APK
+ - ./gradlew :cashier:assembleDebug
+ # START only needed while patch not accepted/released upstream
+ - apt update && apt install patch
+ - patch /usr/lib/python3/dist-packages/fdroidserver/nightly.py nightly-stats.patch
+ # END
+ - CI_PROJECT_URL="https://gitlab.com/gnu-taler/fdroid-repo" CI_PROJECT_PATH="gnu-taler/fdroid-repo" fdroid nightly -v
diff --git a/cashier/README.md b/cashier/README.md
new file mode 100644
index 0000000..e884f25
--- /dev/null
+++ b/cashier/README.md
@@ -0,0 +1,10 @@
+# GNU Taler Cashier App
+
+The purpose of this app is to enable people (a cashier) to take cash and give out e-cash.
+
+## Building
+
+You can import the project into Android Studio
+or build it with Gradle on the command line:
+
+ $ ./gradlew build
diff --git a/cashier/build.gradle b/cashier/build.gradle
new file mode 100644
index 0000000..5915f8a
--- /dev/null
+++ b/cashier/build.gradle
@@ -0,0 +1,72 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+apply plugin: 'androidx.navigation.safeargs.kotlin'
+
+android {
+ compileSdkVersion 29
+ buildToolsVersion "29.0.3"
+
+ defaultConfig {
+ applicationId "net.taler.cashier"
+ minSdkVersion 23
+ targetSdkVersion 29
+ versionCode 1
+ versionName "0.1"
+ testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+ }
+
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+ }
+ }
+
+ kotlinOptions {
+ jvmTarget = "1.8"
+ }
+
+}
+
+dependencies {
+ implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+ implementation 'androidx.appcompat:appcompat:1.1.0'
+ implementation 'androidx.core:core-ktx:1.2.0'
+ implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+ implementation 'androidx.security:security-crypto:1.0.0-alpha02'
+ implementation 'com.google.android.material:material:1.1.0'
+
+ implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
+ implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
+
+ // ViewModel and LiveData
+ def lifecycle_version = "2.2.0"
+ implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycle_version"
+
+ // QR codes
+ implementation 'com.google.zxing:core:3.4.0'
+
+ implementation "com.squareup.okhttp3:okhttp:3.12.6"
+
+ testImplementation 'junit:junit:4.13'
+
+ androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+ androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+}
diff --git a/cashier/lint.xml b/cashier/lint.xml
new file mode 100644
index 0000000..164e244
--- /dev/null
+++ b/cashier/lint.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<lint>
+
+</lint>
diff --git a/cashier/proguard-rules.pro b/cashier/proguard-rules.pro
new file mode 100644
index 0000000..f1b4245
--- /dev/null
+++ b/cashier/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/cashier/src/main/AndroidManifest.xml b/cashier/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..345c9a1
--- /dev/null
+++ b/cashier/src/main/AndroidManifest.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:tools="http://schemas.android.com/tools"
+ package="net.taler.cashier">
+
+ <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+ <uses-permission android:name="android.permission.INTERNET" />
+ <uses-permission android:name="android.permission.NFC" />
+
+ <application
+ android:allowBackup="true"
+ android:icon="@mipmap/ic_launcher"
+ android:label="@string/app_name"
+ android:fullBackupContent="@xml/backup_descriptor"
+ android:supportsRtl="true"
+ android:theme="@style/AppTheme"
+ android:roundIcon="@mipmap/ic_launcher"
+ tools:ignore="GoogleAppIndexingWarning">
+
+ <activity
+ android:name=".MainActivity"
+ android:label="@string/app_name"
+ android:theme="@style/AppTheme.NoActionBar">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+ <category android:name="android.intent.category.LAUNCHER" />
+ </intent-filter>
+ </activity>
+
+ </application>
+
+</manifest>
diff --git a/cashier/src/main/ic_launcher-web.png b/cashier/src/main/ic_launcher-web.png
new file mode 100644
index 0000000..04a58c6
--- /dev/null
+++ b/cashier/src/main/ic_launcher-web.png
Binary files differ
diff --git a/cashier/src/main/java/net/taler/cashier/Amount.kt b/cashier/src/main/java/net/taler/cashier/Amount.kt
new file mode 100644
index 0000000..2c237c8
--- /dev/null
+++ b/cashier/src/main/java/net/taler/cashier/Amount.kt
@@ -0,0 +1,45 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.cashier
+
+data class Amount(val currency: String, val amount: String) {
+
+ companion object {
+
+ private val SIGNED_REGEX = Regex("""([+\-])(\w+):([0-9.]+)""")
+
+ @Suppress("unused")
+ fun fromString(strAmount: String): Amount {
+ val components = strAmount.split(":")
+ return Amount(components[0], components[1])
+ }
+
+ fun fromStringSigned(strAmount: String): Amount? {
+ val groups = SIGNED_REGEX.matchEntire(strAmount)?.groupValues ?: emptyList()
+ if (groups.size < 4) return null
+ var amount = groups[3].toDoubleOrNull() ?: return null
+ if (groups[1] == "-") amount *= -1
+ val currency = groups[2]
+ val amountStr = amount.toString()
+ // only display as many digits as required to precisely render the balance
+ return Amount(currency, amountStr.removeSuffix(".0"))
+ }
+ }
+
+ override fun toString() = "$amount $currency"
+
+}
diff --git a/cashier/src/main/java/net/taler/cashier/BalanceFragment.kt b/cashier/src/main/java/net/taler/cashier/BalanceFragment.kt
new file mode 100644
index 0000000..b3a0221
--- /dev/null
+++ b/cashier/src/main/java/net/taler/cashier/BalanceFragment.kt
@@ -0,0 +1,182 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.cashier
+
+import android.annotation.SuppressLint
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.Menu
+import android.view.MenuInflater
+import android.view.MenuItem
+import android.view.View
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import android.view.inputmethod.EditorInfo
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.navigation.fragment.findNavController
+import kotlinx.android.synthetic.main.fragment_balance.*
+import net.taler.cashier.BalanceFragmentDirections.Companion.actionBalanceFragmentToTransactionFragment
+import net.taler.cashier.withdraw.LastTransaction
+import net.taler.cashier.withdraw.WithdrawStatus
+
+sealed class BalanceResult {
+ object Error : BalanceResult()
+ object Offline : BalanceResult()
+ class Success(val amount: Amount) : BalanceResult()
+}
+
+class BalanceFragment : Fragment() {
+
+ private val viewModel: MainViewModel by activityViewModels()
+ private val withdrawManager by lazy { viewModel.withdrawManager }
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ setHasOptionsMenu(true)
+ return inflater.inflate(R.layout.fragment_balance, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ withdrawManager.lastTransaction.observe(viewLifecycleOwner, Observer { lastTransaction ->
+ onLastTransaction(lastTransaction)
+ })
+ viewModel.balance.observe(viewLifecycleOwner, Observer { result ->
+ when (result) {
+ is BalanceResult.Success -> onBalanceUpdated(result.amount)
+ else -> onBalanceUpdated(null, result is BalanceResult.Offline)
+ }
+ })
+ button5.setOnClickListener { onAmountButtonPressed(5) }
+ button10.setOnClickListener { onAmountButtonPressed(10) }
+ button20.setOnClickListener { onAmountButtonPressed(20) }
+ button50.setOnClickListener { onAmountButtonPressed(50) }
+
+ if (savedInstanceState != null) {
+ amountView.editText!!.setText(savedInstanceState.getCharSequence("amountView"))
+ }
+ amountView.editText!!.setOnEditorActionListener { _, actionId, _ ->
+ if (actionId == EditorInfo.IME_ACTION_GO) {
+ onAmountConfirmed(getAmountFromView())
+ true
+ } else false
+ }
+ viewModel.currency.observe(viewLifecycleOwner, Observer { currency ->
+ currencyView.text = currency
+ })
+ confirmWithdrawalButton.setOnClickListener { onAmountConfirmed(getAmountFromView()) }
+ }
+
+ override fun onStart() {
+ super.onStart()
+ // update balance if there's a config
+ if (viewModel.hasConfig()) {
+ viewModel.getBalance()
+ }
+ }
+
+ override fun onSaveInstanceState(outState: Bundle) {
+ super.onSaveInstanceState(outState)
+ // for some reason automatic restore isn't working at the moment!?
+ amountView?.editText?.text.let {
+ outState.putCharSequence("amountView", it)
+ }
+ }
+
+ override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
+ inflater.inflate(R.menu.balance, menu)
+ super.onCreateOptionsMenu(menu, inflater)
+ }
+
+ override fun onOptionsItemSelected(item: MenuItem) = when (item.itemId) {
+ R.id.action_reconfigure -> {
+ findNavController().navigate(viewModel.configDestination)
+ true
+ }
+ R.id.action_lock -> {
+ viewModel.lock()
+ findNavController().navigate(viewModel.configDestination)
+ true
+ }
+ else -> super.onOptionsItemSelected(item)
+ }
+
+ private fun onBalanceUpdated(amount: Amount?, isOffline: Boolean = false) {
+ val uiList = listOf(
+ introView,
+ button5, button10, button20, button50,
+ amountView, currencyView, confirmWithdrawalButton
+ )
+ if (amount == null) {
+ balanceView.text =
+ getString(if (isOffline) R.string.balance_offline else R.string.balance_error)
+ uiList.forEach { it.fadeOut() }
+ } else {
+ @SuppressLint("SetTextI18n")
+ balanceView.text = "${amount.amount} ${amount.currency}"
+ uiList.forEach { it.fadeIn() }
+ }
+ progressBar.fadeOut()
+ }
+
+ private fun onAmountButtonPressed(amount: Int) {
+ amountView.editText!!.setText(amount.toString())
+ amountView.error = null
+ }
+
+ private fun getAmountFromView(): Int {
+ val str = amountView.editText!!.text.toString()
+ if (str.isBlank()) return 0
+ return Integer.parseInt(str)
+ }
+
+ private fun onAmountConfirmed(amount: Int) {
+ if (amount <= 0) {
+ amountView.error = getString(R.string.withdraw_error_zero)
+ } else if (!withdrawManager.hasSufficientBalance(amount)) {
+ amountView.error = getString(R.string.withdraw_error_insufficient_balance)
+ } else {
+ amountView.error = null
+ withdrawManager.withdraw(amount)
+ actionBalanceFragmentToTransactionFragment().let {
+ findNavController().navigate(it)
+ }
+ }
+ }
+
+ private fun onLastTransaction(lastTransaction: LastTransaction?) {
+ val status = lastTransaction?.withdrawStatus
+ val text = when (status) {
+ is WithdrawStatus.Success -> getString(
+ R.string.transaction_last_success, lastTransaction.withdrawAmount
+ )
+ is WithdrawStatus.Aborted -> getString(R.string.transaction_last_aborted)
+ else -> getString(R.string.transaction_last_error)
+ }
+ lastTransactionView.text = text
+ val drawable = if (status == WithdrawStatus.Success)
+ R.drawable.ic_check_circle
+ else
+ R.drawable.ic_error
+ lastTransactionView.setCompoundDrawablesRelativeWithIntrinsicBounds(drawable, 0, 0, 0)
+ lastTransactionView.visibility = VISIBLE
+ }
+
+}
diff --git a/cashier/src/main/java/net/taler/cashier/ConfigFragment.kt b/cashier/src/main/java/net/taler/cashier/ConfigFragment.kt
new file mode 100644
index 0000000..b9a97e5
--- /dev/null
+++ b/cashier/src/main/java/net/taler/cashier/ConfigFragment.kt
@@ -0,0 +1,139 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.cashier
+
+import android.os.Bundle
+import android.text.method.LinkMovementMethod
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.INVISIBLE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import android.view.inputmethod.InputMethodManager
+import androidx.core.content.ContextCompat.getSystemService
+import androidx.core.text.HtmlCompat
+import androidx.core.text.HtmlCompat.FROM_HTML_MODE_LEGACY
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.navigation.fragment.findNavController
+import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.snackbar.Snackbar.LENGTH_LONG
+import kotlinx.android.synthetic.main.fragment_config.*
+
+private const val URL_BANK_TEST = "https://bank.test.taler.net"
+private const val URL_BANK_TEST_REGISTER = "$URL_BANK_TEST/accounts/register"
+
+class ConfigFragment : Fragment() {
+
+ private val viewModel: MainViewModel by activityViewModels()
+
+ override fun onCreateView(
+ inflater: LayoutInflater,
+ container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_config, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ if (savedInstanceState == null) {
+ if (viewModel.config.bankUrl.isBlank()) {
+ urlView.editText!!.setText(URL_BANK_TEST)
+ } else {
+ urlView.editText!!.setText(viewModel.config.bankUrl)
+ }
+ usernameView.editText!!.setText(viewModel.config.username)
+ passwordView.editText!!.setText(viewModel.config.password)
+ } else {
+ urlView.editText!!.setText(savedInstanceState.getCharSequence("urlView"))
+ usernameView.editText!!.setText(savedInstanceState.getCharSequence("usernameView"))
+ passwordView.editText!!.setText(savedInstanceState.getCharSequence("passwordView"))
+ }
+ saveButton.setOnClickListener {
+ val config = Config(
+ bankUrl = urlView.editText!!.text.toString(),
+ username = usernameView.editText!!.text.toString(),
+ password = passwordView.editText!!.text.toString()
+ )
+ if (checkConfig(config)) {
+ // show progress
+ saveButton.visibility = INVISIBLE
+ progressBar.visibility = VISIBLE
+ // kick off check and observe result
+ viewModel.checkAndSaveConfig(config)
+ viewModel.configResult.observe(viewLifecycleOwner, onConfigResult)
+ // hide keyboard
+ val inputMethodManager =
+ getSystemService(requireContext(), InputMethodManager::class.java)!!
+ inputMethodManager.hideSoftInputFromWindow(view.windowToken, 0)
+ }
+ }
+ demoView.text = HtmlCompat.fromHtml(
+ getString(R.string.config_demo_hint, URL_BANK_TEST_REGISTER), FROM_HTML_MODE_LEGACY
+ )
+ demoView.movementMethod = LinkMovementMethod.getInstance()
+ }
+
+ override fun onStart() {
+ super.onStart()
+ // focus on password if it is the only missing value (like after locking)
+ if (urlView.editText!!.text.isNotBlank()
+ && usernameView.editText!!.text.isNotBlank()
+ && passwordView.editText!!.text.isBlank()) {
+ passwordView.editText!!.requestFocus()
+ }
+ }
+
+ override fun onSaveInstanceState(outState: Bundle) {
+ super.onSaveInstanceState(outState)
+ // for some reason automatic restore isn't working at the moment!?
+ outState.putCharSequence("urlView", urlView.editText?.text)
+ outState.putCharSequence("usernameView", usernameView.editText?.text)
+ outState.putCharSequence("passwordView", passwordView.editText?.text)
+ }
+
+ private fun checkConfig(config: Config): Boolean {
+ if (!config.bankUrl.startsWith("https://")) {
+ urlView.error = getString(R.string.config_bank_url_error)
+ urlView.requestFocus()
+ return false
+ }
+ if (config.username.isBlank()) {
+ usernameView.error = getString(R.string.config_username_error)
+ usernameView.requestFocus()
+ return false
+ }
+ urlView.isErrorEnabled = false
+ return true
+ }
+
+ private val onConfigResult = Observer<ConfigResult> { result ->
+ if (result == null) return@Observer
+ if (result.success) {
+ val action = ConfigFragmentDirections.actionConfigFragmentToBalanceFragment()
+ findNavController().navigate(action)
+ } else {
+ val res = if (result.authError) R.string.config_error_auth else R.string.config_error
+ Snackbar.make(view!!, res, LENGTH_LONG).show()
+ }
+ saveButton.visibility = VISIBLE
+ progressBar.visibility = INVISIBLE
+ viewModel.configResult.removeObservers(viewLifecycleOwner)
+ }
+
+}
diff --git a/cashier/src/main/java/net/taler/cashier/HttpHelper.kt b/cashier/src/main/java/net/taler/cashier/HttpHelper.kt
new file mode 100644
index 0000000..06b06db
--- /dev/null
+++ b/cashier/src/main/java/net/taler/cashier/HttpHelper.kt
@@ -0,0 +1,102 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.cashier
+
+import android.util.Log
+import androidx.annotation.WorkerThread
+import okhttp3.Credentials
+import okhttp3.MediaType
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.RequestBody
+import org.json.JSONObject
+
+object HttpHelper {
+
+ private val TAG = HttpHelper::class.java.simpleName
+ private const val MIME_TYPE_JSON = "application/json"
+
+ @WorkerThread
+ fun makeJsonGetRequest(url: String, config: Config): HttpJsonResult {
+ val request = Request.Builder()
+ .addHeader("Accept", MIME_TYPE_JSON)
+ .url(url)
+ .get()
+ .build()
+ val response = try {
+ getHttpClient(config.username, config.password)
+ .newCall(request)
+ .execute()
+ } catch (e: Exception) {
+ Log.e(TAG, "Error retrieving $url", e)
+ return HttpJsonResult.Error(500)
+ }
+ return if (response.code() == 200 && response.body() != null) {
+ val jsonObject = JSONObject(response.body()!!.string())
+ HttpJsonResult.Success(jsonObject)
+ } else {
+ Log.e(TAG, "Received status ${response.code()} from $url expected 200")
+ HttpJsonResult.Error(response.code())
+ }
+ }
+
+ private val MEDIA_TYPE_JSON = MediaType.parse("$MIME_TYPE_JSON; charset=utf-8")
+
+ @WorkerThread
+ fun makeJsonPostRequest(url: String, body: String, config: Config): HttpJsonResult {
+ val request = Request.Builder()
+ .addHeader("Accept", MIME_TYPE_JSON)
+ .url(url)
+ .post(RequestBody.create(MEDIA_TYPE_JSON, body))
+ .build()
+ val response = try {
+ getHttpClient(config.username, config.password)
+ .newCall(request)
+ .execute()
+ } catch (e: Exception) {
+ Log.e(TAG, "Error retrieving $url", e)
+ return HttpJsonResult.Error(500)
+ }
+ return if (response.code() == 200 && response.body() != null) {
+ val jsonObject = JSONObject(response.body()!!.string())
+ HttpJsonResult.Success(jsonObject)
+ } else {
+ Log.e(TAG, "Received status ${response.code()} from $url expected 200")
+ HttpJsonResult.Error(response.code())
+ }
+ }
+
+ private fun getHttpClient(username: String, password: String) =
+ OkHttpClient.Builder().authenticator { _, response ->
+ val credential = Credentials.basic(username, password)
+ if (credential == response.request().header("Authorization")) {
+ // If we already failed with these credentials, don't retry
+ return@authenticator null
+ }
+ response
+ .request()
+ .newBuilder()
+ .header("Authorization", credential)
+ .build()
+ }.build()
+
+}
+
+sealed class HttpJsonResult {
+ class Error(val statusCode: Int) : HttpJsonResult()
+ class Success(val json: JSONObject) : HttpJsonResult()
+}
diff --git a/cashier/src/main/java/net/taler/cashier/MainActivity.kt b/cashier/src/main/java/net/taler/cashier/MainActivity.kt
new file mode 100644
index 0000000..b238054
--- /dev/null
+++ b/cashier/src/main/java/net/taler/cashier/MainActivity.kt
@@ -0,0 +1,62 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.cashier
+
+import android.content.Intent
+import android.content.Intent.*
+import android.os.Bundle
+import androidx.activity.viewModels
+import androidx.appcompat.app.AppCompatActivity
+import androidx.navigation.NavController
+import androidx.navigation.fragment.NavHostFragment
+import kotlinx.android.synthetic.main.activity_main.*
+
+class MainActivity : AppCompatActivity() {
+
+ private val viewModel: MainViewModel by viewModels()
+ private lateinit var nav: NavController
+
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+ setContentView(R.layout.activity_main)
+ setSupportActionBar(toolbar)
+ val navHostFragment =
+ supportFragmentManager.findFragmentById(R.id.nav_host_fragment) as NavHostFragment
+ nav = navHostFragment.navController
+ }
+
+ override fun onStart() {
+ super.onStart()
+ if (!viewModel.hasConfig()) {
+ nav.navigate(viewModel.configDestination)
+ }
+ }
+
+ override fun onBackPressed() {
+ if (!viewModel.hasConfig() && nav.currentDestination?.id == R.id.configFragment) {
+ // we are in the configuration screen and need a config to continue
+ val intent = Intent(ACTION_MAIN).apply {
+ addCategory(CATEGORY_HOME)
+ flags = FLAG_ACTIVITY_NEW_TASK
+ }
+ startActivity(intent)
+ } else {
+ super.onBackPressed()
+ }
+ }
+
+}
diff --git a/cashier/src/main/java/net/taler/cashier/MainViewModel.kt b/cashier/src/main/java/net/taler/cashier/MainViewModel.kt
new file mode 100644
index 0000000..3874038
--- /dev/null
+++ b/cashier/src/main/java/net/taler/cashier/MainViewModel.kt
@@ -0,0 +1,148 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.cashier
+
+import android.annotation.SuppressLint
+import android.app.Application
+import android.util.Log
+import androidx.annotation.UiThread
+import androidx.annotation.WorkerThread
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.viewModelScope
+import androidx.security.crypto.EncryptedSharedPreferences
+import androidx.security.crypto.EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV
+import androidx.security.crypto.EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+import androidx.security.crypto.MasterKeys
+import androidx.security.crypto.MasterKeys.AES256_GCM_SPEC
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import net.taler.cashier.Amount.Companion.fromStringSigned
+import net.taler.cashier.HttpHelper.makeJsonGetRequest
+import net.taler.cashier.withdraw.WithdrawManager
+
+private val TAG = MainViewModel::class.java.simpleName
+
+private const val PREF_NAME = "net.taler.cashier.prefs"
+private const val PREF_KEY_BANK_URL = "bankUrl"
+private const val PREF_KEY_USERNAME = "username"
+private const val PREF_KEY_PASSWORD = "password"
+private const val PREF_KEY_CURRENCY = "currency"
+
+class MainViewModel(private val app: Application) : AndroidViewModel(app) {
+
+ val configDestination = ConfigFragmentDirections.actionGlobalConfigFragment()
+
+ private val masterKeyAlias = MasterKeys.getOrCreate(AES256_GCM_SPEC)
+ private val prefs = EncryptedSharedPreferences.create(
+ PREF_NAME, masterKeyAlias, app, AES256_SIV, AES256_GCM
+ )
+
+ internal var config = Config(
+ bankUrl = prefs.getString(PREF_KEY_BANK_URL, "")!!,
+ username = prefs.getString(PREF_KEY_USERNAME, "")!!,
+ password = prefs.getString(PREF_KEY_PASSWORD, "")!!
+ )
+
+ private val mCurrency = MutableLiveData<String>(
+ prefs.getString(PREF_KEY_CURRENCY, null)
+ )
+ internal val currency: LiveData<String> = mCurrency
+
+ private val mConfigResult = MutableLiveData<ConfigResult>()
+ val configResult: LiveData<ConfigResult> = mConfigResult
+
+ private val mBalance = MutableLiveData<BalanceResult>()
+ val balance: LiveData<BalanceResult> = mBalance
+
+ internal val withdrawManager = WithdrawManager(app, this)
+
+ fun hasConfig() = config.bankUrl.isNotEmpty()
+ && config.username.isNotEmpty()
+ && config.password.isNotEmpty()
+
+ /**
+ * Start observing [configResult] after calling this to get the result async.
+ * Warning: Ignore null results that are used to reset old results.
+ */
+ @UiThread
+ fun checkAndSaveConfig(config: Config) {
+ mConfigResult.value = null
+ viewModelScope.launch(Dispatchers.IO) {
+ val url = "${config.bankUrl}/accounts/${config.username}/balance"
+ Log.d(TAG, "Checking config: $url")
+ val result = when (val response = makeJsonGetRequest(url, config)) {
+ is HttpJsonResult.Success -> {
+ val balance = response.json.getString("balance")
+ val amount = fromStringSigned(balance)!!
+ mCurrency.postValue(amount.currency)
+ prefs.edit().putString(PREF_KEY_CURRENCY, amount.currency).apply()
+ // save config
+ saveConfig(config)
+ ConfigResult(true)
+ }
+ is HttpJsonResult.Error -> {
+ val authError = response.statusCode == 401
+ ConfigResult(false, authError)
+ }
+ }
+ mConfigResult.postValue(result)
+ }
+ }
+
+ @WorkerThread
+ @SuppressLint("ApplySharedPref")
+ private fun saveConfig(config: Config) {
+ this.config = config
+ prefs.edit()
+ .putString(PREF_KEY_BANK_URL, config.bankUrl)
+ .putString(PREF_KEY_USERNAME, config.username)
+ .putString(PREF_KEY_PASSWORD, config.password)
+ .commit()
+ }
+
+ fun getBalance() = viewModelScope.launch(Dispatchers.IO) {
+ check(hasConfig()) { "No config to get balance" }
+ val url = "${config.bankUrl}/accounts/${config.username}/balance"
+ Log.d(TAG, "Checking balance at $url")
+ val result = when (val response = makeJsonGetRequest(url, config)) {
+ is HttpJsonResult.Success -> {
+ val balance = response.json.getString("balance")
+ fromStringSigned(balance)?.let { BalanceResult.Success(it) } ?: BalanceResult.Error
+ }
+ is HttpJsonResult.Error -> {
+ if (app.isOnline()) BalanceResult.Error
+ else BalanceResult.Offline
+ }
+ }
+ mBalance.postValue(result)
+ }
+
+ fun lock() {
+ saveConfig(config.copy(password = ""))
+ }
+
+}
+
+data class Config(
+ val bankUrl: String,
+ val username: String,
+ val password: String
+)
+
+class ConfigResult(val success: Boolean, val authError: Boolean = false)
diff --git a/cashier/src/main/java/net/taler/cashier/Utils.kt b/cashier/src/main/java/net/taler/cashier/Utils.kt
new file mode 100644
index 0000000..62f7a77
--- /dev/null
+++ b/cashier/src/main/java/net/taler/cashier/Utils.kt
@@ -0,0 +1,91 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.cashier
+
+import android.content.Context
+import android.content.Context.CONNECTIVITY_SERVICE
+import android.net.ConnectivityManager
+import android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET
+import android.os.Build.VERSION.SDK_INT
+import android.view.View
+import android.view.View.INVISIBLE
+import android.view.View.VISIBLE
+
+object Utils {
+
+ private const val HEX_CHARS = "0123456789ABCDEF"
+
+ fun hexStringToByteArray(data: String): ByteArray {
+ val result = ByteArray(data.length / 2)
+
+ for (i in data.indices step 2) {
+ val firstIndex = HEX_CHARS.indexOf(data[i])
+ val secondIndex = HEX_CHARS.indexOf(data[i + 1])
+
+ val octet = firstIndex.shl(4).or(secondIndex)
+ result[i.shr(1)] = octet.toByte()
+ }
+ return result
+ }
+
+
+ private val HEX_CHARS_ARRAY = HEX_CHARS.toCharArray()
+
+ @Suppress("unused")
+ fun toHex(byteArray: ByteArray): String {
+ val result = StringBuffer()
+
+ byteArray.forEach {
+ val octet = it.toInt()
+ val firstIndex = (octet and 0xF0).ushr(4)
+ val secondIndex = octet and 0x0F
+ result.append(HEX_CHARS_ARRAY[firstIndex])
+ result.append(HEX_CHARS_ARRAY[secondIndex])
+ }
+ return result.toString()
+ }
+
+}
+
+fun View.fadeIn(endAction: () -> Unit = {}) {
+ if (visibility == VISIBLE) return
+ alpha = 0f
+ visibility = VISIBLE
+ animate().alpha(1f).withEndAction {
+ endAction.invoke()
+ }.start()
+}
+
+fun View.fadeOut(endAction: () -> Unit = {}) {
+ if (visibility == INVISIBLE) return
+ animate().alpha(0f).withEndAction {
+ visibility = INVISIBLE
+ alpha = 1f
+ endAction.invoke()
+ }.start()
+}
+
+fun Context.isOnline(): Boolean {
+ val cm = getSystemService(CONNECTIVITY_SERVICE) as ConnectivityManager
+ return if (SDK_INT < 29) {
+ @Suppress("DEPRECATION")
+ cm.activeNetworkInfo?.isConnected == true
+ } else {
+ val capabilities = cm.getNetworkCapabilities(cm.activeNetwork) ?: return false
+ capabilities.hasCapability(NET_CAPABILITY_INTERNET)
+ }
+}
diff --git a/cashier/src/main/java/net/taler/cashier/withdraw/ErrorFragment.kt b/cashier/src/main/java/net/taler/cashier/withdraw/ErrorFragment.kt
new file mode 100644
index 0000000..ceffcec
--- /dev/null
+++ b/cashier/src/main/java/net/taler/cashier/withdraw/ErrorFragment.kt
@@ -0,0 +1,55 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.cashier.withdraw
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.navigation.fragment.findNavController
+import kotlinx.android.synthetic.main.fragment_error.*
+import net.taler.cashier.MainViewModel
+import net.taler.cashier.R
+
+class ErrorFragment : Fragment() {
+
+ private val viewModel: MainViewModel by activityViewModels()
+ private val withdrawManager by lazy { viewModel.withdrawManager }
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_error, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ withdrawManager.withdrawStatus.observe(viewLifecycleOwner, Observer { status ->
+ if (status is WithdrawStatus.Aborted) {
+ textView.setText(R.string.transaction_aborted)
+ }
+ })
+ withdrawManager.completeTransaction()
+ backButton.setOnClickListener {
+ findNavController().popBackStack()
+ }
+ }
+
+}
diff --git a/cashier/src/main/java/net/taler/cashier/withdraw/NfcManager.kt b/cashier/src/main/java/net/taler/cashier/withdraw/NfcManager.kt
new file mode 100644
index 0000000..a487b5f
--- /dev/null
+++ b/cashier/src/main/java/net/taler/cashier/withdraw/NfcManager.kt
@@ -0,0 +1,234 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.cashier.withdraw
+
+import android.app.Activity
+import android.content.Context
+import android.nfc.NfcAdapter
+import android.nfc.NfcAdapter.FLAG_READER_NFC_A
+import android.nfc.NfcAdapter.FLAG_READER_SKIP_NDEF_CHECK
+import android.nfc.NfcAdapter.getDefaultAdapter
+import android.nfc.Tag
+import android.nfc.tech.IsoDep
+import android.util.Log
+import net.taler.cashier.Utils.hexStringToByteArray
+import org.json.JSONObject
+import java.io.ByteArrayOutputStream
+import java.net.URL
+import javax.net.ssl.HttpsURLConnection
+
+@Suppress("unused")
+private const val TALER_AID = "A0000002471001"
+
+class NfcManager : NfcAdapter.ReaderCallback {
+
+ companion object {
+ const val TAG = "taler-merchant"
+
+ /**
+ * Returns true if NFC is supported and false otherwise.
+ */
+ fun hasNfc(context: Context): Boolean {
+ return getNfcAdapter(context) != null
+ }
+
+ /**
+ * Enables NFC reader mode. Don't forget to call [stop] afterwards.
+ */
+ fun start(activity: Activity, nfcManager: NfcManager) {
+ getNfcAdapter(activity)?.enableReaderMode(activity, nfcManager, nfcManager.flags, null)
+ }
+
+ /**
+ * Disables NFC reader mode. Call after [start].
+ */
+ fun stop(activity: Activity) {
+ getNfcAdapter(activity)?.disableReaderMode(activity)
+ }
+
+ private fun getNfcAdapter(context: Context): NfcAdapter? {
+ return getDefaultAdapter(context)
+ }
+ }
+
+ private val flags = FLAG_READER_NFC_A or FLAG_READER_SKIP_NDEF_CHECK
+
+ private var tagString: String? = null
+ private var currentTag: IsoDep? = null
+
+ fun setTagString(tagString: String) {
+ this.tagString = tagString
+ }
+
+ override fun onTagDiscovered(tag: Tag?) {
+
+ Log.v(TAG, "tag discovered")
+
+ val isoDep = IsoDep.get(tag)
+ isoDep.connect()
+
+ currentTag = isoDep
+
+ isoDep.transceive(apduSelectFile())
+
+ val tagString: String? = tagString
+ if (tagString != null) {
+ isoDep.transceive(apduPutTalerData(1, tagString.toByteArray()))
+ }
+
+ // FIXME: use better pattern for sleeps in between requests
+ // -> start with fast polling, poll more slowly if no requests are coming
+
+ while (true) {
+ try {
+ val reqFrame = isoDep.transceive(apduGetData())
+ if (reqFrame.size < 2) {
+ Log.v(TAG, "request frame too small")
+ break
+ }
+ val req = ByteArray(reqFrame.size - 2)
+ if (req.isEmpty()) {
+ continue
+ }
+ reqFrame.copyInto(req, 0, 0, reqFrame.size - 2)
+ val jsonReq = JSONObject(req.toString(Charsets.UTF_8))
+ val reqId = jsonReq.getInt("id")
+ Log.v(TAG, "got request $jsonReq")
+ val jsonInnerReq = jsonReq.getJSONObject("request")
+ val method = jsonInnerReq.getString("method")
+ val urlStr = jsonInnerReq.getString("url")
+ Log.v(TAG, "url '$urlStr'")
+ Log.v(TAG, "method '$method'")
+ val url = URL(urlStr)
+ val conn: HttpsURLConnection = url.openConnection() as HttpsURLConnection
+ conn.setRequestProperty("Accept", "application/json")
+ conn.connectTimeout = 5000
+ conn.doInput = true
+ when (method) {
+ "get" -> {
+ conn.requestMethod = "GET"
+ }
+ "postJson" -> {
+ conn.requestMethod = "POST"
+ conn.doOutput = true
+ conn.setRequestProperty("Content-Type", "application/json; utf-8")
+ val body = jsonInnerReq.getString("body")
+ conn.outputStream.write(body.toByteArray(Charsets.UTF_8))
+ }
+ else -> {
+ throw Exception("method not supported")
+ }
+ }
+ Log.v(TAG, "connecting")
+ conn.connect()
+ Log.v(TAG, "connected")
+
+ val statusCode = conn.responseCode
+ val tunnelResp = JSONObject()
+ tunnelResp.put("id", reqId)
+ tunnelResp.put("status", conn.responseCode)
+
+ if (statusCode == 200) {
+ val stream = conn.inputStream
+ val httpResp = stream.buffered().readBytes()
+ tunnelResp.put("responseJson", JSONObject(httpResp.toString(Charsets.UTF_8)))
+ }
+
+ Log.v(TAG, "sending: $tunnelResp")
+
+ isoDep.transceive(apduPutTalerData(2, tunnelResp.toString().toByteArray()))
+ } catch (e: Exception) {
+ Log.v(TAG, "exception during NFC loop: $e")
+ break
+ }
+ }
+
+ isoDep.close()
+ }
+
+ private fun writeApduLength(stream: ByteArrayOutputStream, size: Int) {
+ when {
+ size == 0 -> {
+ // No size field needed!
+ }
+ size <= 255 -> // One byte size field
+ stream.write(size)
+ size <= 65535 -> {
+ stream.write(0)
+ // FIXME: is this supposed to be little or big endian?
+ stream.write(size and 0xFF)
+ stream.write((size ushr 8) and 0xFF)
+ }
+ else -> throw Error("payload too big")
+ }
+ }
+
+ private fun apduSelectFile(): ByteArray {
+ return hexStringToByteArray("00A4040007A0000002471001")
+ }
+
+ private fun apduPutData(payload: ByteArray): ByteArray {
+ val stream = ByteArrayOutputStream()
+
+ // Class
+ stream.write(0x00)
+
+ // Instruction 0xDA = put data
+ stream.write(0xDA)
+
+ // Instruction parameters
+ // (proprietary encoding)
+ stream.write(0x01)
+ stream.write(0x00)
+
+ writeApduLength(stream, payload.size)
+
+ stream.write(payload)
+
+ return stream.toByteArray()
+ }
+
+ private fun apduPutTalerData(talerInst: Int, payload: ByteArray): ByteArray {
+ val realPayload = ByteArrayOutputStream()
+ realPayload.write(talerInst)
+ realPayload.write(payload)
+ return apduPutData(realPayload.toByteArray())
+ }
+
+ private fun apduGetData(): ByteArray {
+ val stream = ByteArrayOutputStream()
+
+ // Class
+ stream.write(0x00)
+
+ // Instruction 0xCA = get data
+ stream.write(0xCA)
+
+ // Instruction parameters
+ // (proprietary encoding)
+ stream.write(0x01)
+ stream.write(0x00)
+
+ // Max expected response size, two
+ // zero bytes denotes 65536
+ stream.write(0x0)
+ stream.write(0x0)
+
+ return stream.toByteArray()
+ }
+
+}
diff --git a/cashier/src/main/java/net/taler/cashier/withdraw/QrCodeManager.kt b/cashier/src/main/java/net/taler/cashier/withdraw/QrCodeManager.kt
new file mode 100644
index 0000000..e3ffa92
--- /dev/null
+++ b/cashier/src/main/java/net/taler/cashier/withdraw/QrCodeManager.kt
@@ -0,0 +1,42 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.cashier.withdraw
+
+import android.graphics.Bitmap
+import android.graphics.Bitmap.Config.RGB_565
+import android.graphics.Color.BLACK
+import android.graphics.Color.WHITE
+import com.google.zxing.BarcodeFormat.QR_CODE
+import com.google.zxing.qrcode.QRCodeWriter
+
+object QrCodeManager {
+
+ fun makeQrCode(text: String, size: Int = 256): Bitmap {
+ val qrCodeWriter = QRCodeWriter()
+ val bitMatrix = qrCodeWriter.encode(text, QR_CODE, size, size)
+ val height = bitMatrix.height
+ val width = bitMatrix.width
+ val bmp = Bitmap.createBitmap(width, height, RGB_565)
+ for (x in 0 until width) {
+ for (y in 0 until height) {
+ bmp.setPixel(x, y, if (bitMatrix.get(x, y)) BLACK else WHITE)
+ }
+ }
+ return bmp
+ }
+
+}
diff --git a/cashier/src/main/java/net/taler/cashier/withdraw/TransactionFragment.kt b/cashier/src/main/java/net/taler/cashier/withdraw/TransactionFragment.kt
new file mode 100644
index 0000000..8b782b0
--- /dev/null
+++ b/cashier/src/main/java/net/taler/cashier/withdraw/TransactionFragment.kt
@@ -0,0 +1,174 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.cashier.withdraw
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.INVISIBLE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import androidx.core.content.ContextCompat.getColor
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.navigation.fragment.findNavController
+import kotlinx.android.synthetic.main.fragment_transaction.*
+import net.taler.cashier.MainViewModel
+import net.taler.cashier.R
+import net.taler.cashier.fadeIn
+import net.taler.cashier.fadeOut
+import net.taler.cashier.withdraw.TransactionFragmentDirections.Companion.actionTransactionFragmentToBalanceFragment
+import net.taler.cashier.withdraw.TransactionFragmentDirections.Companion.actionTransactionFragmentToErrorFragment
+import net.taler.cashier.withdraw.WithdrawResult.Error
+import net.taler.cashier.withdraw.WithdrawResult.InsufficientBalance
+import net.taler.cashier.withdraw.WithdrawResult.Success
+
+class TransactionFragment : Fragment() {
+
+ private val viewModel: MainViewModel by activityViewModels()
+ private val withdrawManager by lazy { viewModel.withdrawManager }
+ private val nfcManager = NfcManager()
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_transaction, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ withdrawManager.withdrawAmount.observe(viewLifecycleOwner, Observer { amount ->
+ amountView.text = amount
+ })
+ withdrawManager.withdrawResult.observe(viewLifecycleOwner, Observer { result ->
+ onWithdrawResultReceived(result)
+ })
+ withdrawManager.withdrawStatus.observe(viewLifecycleOwner, Observer { status ->
+ onWithdrawStatusChanged(status)
+ })
+
+ // change intro text depending on whether NFC is available or not
+ val hasNfc = NfcManager.hasNfc(requireContext())
+ val intro = if (hasNfc) R.string.transaction_intro_nfc else R.string.transaction_intro
+ introView.setText(intro)
+
+ cancelButton.setOnClickListener {
+ findNavController().popBackStack()
+ }
+ }
+
+ override fun onStart() {
+ super.onStart()
+ if (withdrawManager.withdrawResult.value is Success) {
+ NfcManager.start(requireActivity(), nfcManager)
+ }
+ }
+
+ override fun onStop() {
+ super.onStop()
+ NfcManager.stop(requireActivity())
+ }
+
+ override fun onDestroy() {
+ super.onDestroy()
+ if (!requireActivity().isChangingConfigurations) {
+ withdrawManager.abort()
+ }
+ }
+
+ private fun onWithdrawResultReceived(result: WithdrawResult?) {
+ if (result != null) {
+ progressBar.animate()
+ .alpha(0f)
+ .withEndAction { progressBar?.visibility = INVISIBLE }
+ .setDuration(750)
+ .start()
+ }
+ when (result) {
+ is InsufficientBalance -> {
+ val c = getColor(requireContext(), R.color.design_default_color_error)
+ introView.setTextColor(c)
+ introView.text = getString(R.string.withdraw_error_insufficient_balance)
+ }
+ is Error -> {
+ val c = getColor(requireContext(), R.color.design_default_color_error)
+ introView.setTextColor(c)
+ introView.text = result.msg
+ }
+ is Success -> {
+ // start NFC
+ nfcManager.setTagString(result.talerUri)
+ NfcManager.start(
+ requireActivity(),
+ nfcManager
+ )
+ // show QR code
+ qrCodeView.alpha = 0f
+ qrCodeView.animate()
+ .alpha(1f)
+ .withStartAction {
+ qrCodeView.visibility = VISIBLE
+ qrCodeView.setImageBitmap(result.qrCode)
+ }
+ .setDuration(750)
+ .start()
+ }
+ }
+ }
+
+ private fun onWithdrawStatusChanged(status: WithdrawStatus?): Any = when (status) {
+ is WithdrawStatus.SelectionDone -> {
+ qrCodeView.fadeOut {
+ qrCodeView?.setImageResource(R.drawable.ic_arrow)
+ qrCodeView?.fadeIn()
+ }
+ introView.fadeOut {
+ introView?.text = getString(R.string.transaction_intro_scanned)
+ introView?.fadeIn {
+ confirmButton?.isEnabled = true
+ confirmButton?.setOnClickListener {
+ withdrawManager.confirm(status.withdrawalId)
+ }
+ }
+ }
+ }
+ is WithdrawStatus.Confirming -> {
+ confirmButton.isEnabled = false
+ qrCodeView.fadeOut()
+ progressBar.fadeIn()
+ }
+ is WithdrawStatus.Success -> {
+ withdrawManager.completeTransaction()
+ actionTransactionFragmentToBalanceFragment().let {
+ findNavController().navigate(it)
+ }
+ }
+ is WithdrawStatus.Aborted -> onError()
+ is WithdrawStatus.Error -> onError()
+ null -> {
+ // no-op
+ }
+ }
+
+ private fun onError() {
+ actionTransactionFragmentToErrorFragment().let {
+ findNavController().navigate(it)
+ }
+ }
+
+}
diff --git a/cashier/src/main/java/net/taler/cashier/withdraw/WithdrawManager.kt b/cashier/src/main/java/net/taler/cashier/withdraw/WithdrawManager.kt
new file mode 100644
index 0000000..4c618ac
--- /dev/null
+++ b/cashier/src/main/java/net/taler/cashier/withdraw/WithdrawManager.kt
@@ -0,0 +1,232 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.cashier.withdraw
+
+import android.app.Application
+import android.graphics.Bitmap
+import android.os.CountDownTimer
+import android.util.Log
+import androidx.annotation.UiThread
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+import net.taler.cashier.BalanceResult
+import net.taler.cashier.HttpHelper.makeJsonGetRequest
+import net.taler.cashier.HttpHelper.makeJsonPostRequest
+import net.taler.cashier.HttpJsonResult.Error
+import net.taler.cashier.HttpJsonResult.Success
+import net.taler.cashier.MainViewModel
+import net.taler.cashier.R
+import org.json.JSONObject
+import java.util.concurrent.TimeUnit.MINUTES
+import java.util.concurrent.TimeUnit.SECONDS
+
+private val TAG = WithdrawManager::class.java.simpleName
+
+private val INTERVAL = SECONDS.toMillis(1)
+private val TIMEOUT = MINUTES.toMillis(2)
+
+class WithdrawManager(
+ private val app: Application,
+ private val viewModel: MainViewModel
+) {
+ private val scope
+ get() = viewModel.viewModelScope
+
+ private val config
+ get() = viewModel.config
+
+ private val currency: String?
+ get() = viewModel.currency.value
+
+ private var withdrawStatusCheck: Job? = null
+
+ private val mWithdrawAmount = MutableLiveData<String>()
+ val withdrawAmount: LiveData<String> = mWithdrawAmount
+
+ private val mWithdrawResult = MutableLiveData<WithdrawResult>()
+ val withdrawResult: LiveData<WithdrawResult> = mWithdrawResult
+
+ private val mWithdrawStatus = MutableLiveData<WithdrawStatus>()
+ val withdrawStatus: LiveData<WithdrawStatus> = mWithdrawStatus
+
+ private val mLastTransaction = MutableLiveData<LastTransaction>()
+ val lastTransaction: LiveData<LastTransaction> = mLastTransaction
+
+ @UiThread
+ fun hasSufficientBalance(amount: Int): Boolean {
+ val balanceResult = viewModel.balance.value
+ if (balanceResult !is BalanceResult.Success) return false
+ val balanceStr = balanceResult.amount.amount
+ val balanceDouble = balanceStr.toDouble()
+ return amount <= balanceDouble
+ }
+
+ @UiThread
+ fun withdraw(amount: Int) {
+ check(amount > 0) { "Withdraw amount was <= 0" }
+ check(currency != null) { "Currency is null" }
+ mWithdrawResult.value = null
+ mWithdrawAmount.value = "$amount $currency"
+ scope.launch(Dispatchers.IO) {
+ val url = "${config.bankUrl}/accounts/${config.username}/withdrawals"
+ Log.d(TAG, "Starting withdrawal at $url")
+ val body = JSONObject(mapOf("amount" to "${currency}:${amount}")).toString()
+ when (val result = makeJsonPostRequest(url, body, config)) {
+ is Success -> {
+ val talerUri = result.json.getString("taler_withdraw_uri")
+ val withdrawResult = WithdrawResult.Success(
+ id = result.json.getString("withdrawal_id"),
+ talerUri = talerUri,
+ qrCode = QrCodeManager.makeQrCode(talerUri)
+ )
+ mWithdrawResult.postValue(withdrawResult)
+ timer.start()
+ }
+ is Error -> {
+ val errorStr = app.getString(R.string.withdraw_error_fetch)
+ mWithdrawResult.postValue(WithdrawResult.Error(errorStr))
+ }
+ }
+ }
+ }
+
+ private val timer: CountDownTimer = object : CountDownTimer(TIMEOUT, INTERVAL) {
+ override fun onTick(millisUntilFinished: Long) {
+ val result = withdrawResult.value
+ if (result is WithdrawResult.Success) {
+ // check for active jobs and only do one at a time
+ val hasActiveCheck = withdrawStatusCheck?.isActive ?: false
+ if (!hasActiveCheck) {
+ withdrawStatusCheck = checkWithdrawStatus(result.id)
+ }
+ } else {
+ cancel()
+ }
+ }
+
+ override fun onFinish() {
+ abort()
+ mWithdrawStatus.postValue(WithdrawStatus.Error)
+ cancel()
+ }
+ }
+
+ private fun checkWithdrawStatus(withdrawalId: String) = scope.launch(Dispatchers.IO) {
+ val url = "${config.bankUrl}/accounts/${config.username}/withdrawals/${withdrawalId}"
+ Log.d(TAG, "Checking withdraw status at $url")
+ val response = makeJsonGetRequest(url, config)
+ if (response !is Success) return@launch // ignore errors and continue trying
+ val oldStatus = mWithdrawStatus.value
+ when {
+ response.json.getBoolean("aborted") -> {
+ cancelWithdrawStatusCheck()
+ mWithdrawStatus.postValue(WithdrawStatus.Aborted)
+ }
+ response.json.getBoolean("confirmation_done") -> {
+ if (oldStatus !is WithdrawStatus.Success) {
+ cancelWithdrawStatusCheck()
+ mWithdrawStatus.postValue(WithdrawStatus.Success)
+ viewModel.getBalance()
+ }
+ }
+ response.json.getBoolean("selection_done") -> {
+ // only update status, if there's none, yet
+ // so we don't re-notify or overwrite newer status info
+ if (oldStatus == null) {
+ mWithdrawStatus.postValue(WithdrawStatus.SelectionDone(withdrawalId))
+ }
+ }
+ }
+ }
+
+ private fun cancelWithdrawStatusCheck() {
+ timer.cancel()
+ withdrawStatusCheck?.cancel()
+ }
+
+ /**
+ * Aborts the last [withdrawResult], if it exists und there is no [withdrawStatus].
+ * Otherwise this is a no-op.
+ */
+ @UiThread
+ fun abort() {
+ val result = withdrawResult.value
+ val status = withdrawStatus.value
+ if (result is WithdrawResult.Success && status == null) {
+ cancelWithdrawStatusCheck()
+ abort(result.id)
+ }
+ }
+
+ private fun abort(withdrawalId: String) = scope.launch(Dispatchers.IO) {
+ val url = "${config.bankUrl}/accounts/${config.username}/withdrawals/${withdrawalId}/abort"
+ Log.d(TAG, "Aborting withdrawal at $url")
+ makeJsonPostRequest(url, "", config)
+ }
+
+ @UiThread
+ fun confirm(withdrawalId: String) {
+ mWithdrawStatus.value = WithdrawStatus.Confirming
+ scope.launch(Dispatchers.IO) {
+ val url =
+ "${config.bankUrl}/accounts/${config.username}/withdrawals/${withdrawalId}/confirm"
+ Log.d(TAG, "Confirming withdrawal at $url")
+ when (val result = makeJsonPostRequest(url, "", config)) {
+ is Success -> {
+ // no-op still waiting for [timer] to confirm our confirmation
+ }
+ is Error -> {
+ Log.e(TAG, "Error confirming withdrawal. Status code: ${result.statusCode}")
+ mWithdrawStatus.postValue(WithdrawStatus.Error)
+ }
+ }
+ }
+ }
+
+ @UiThread
+ fun completeTransaction() {
+ mLastTransaction.value = LastTransaction(withdrawAmount.value!!, withdrawStatus.value!!)
+ withdrawStatusCheck = null
+ mWithdrawAmount.value = null
+ mWithdrawResult.value = null
+ mWithdrawStatus.value = null
+ }
+
+}
+
+sealed class WithdrawResult {
+ object InsufficientBalance : WithdrawResult()
+ class Error(val msg: String) : WithdrawResult()
+ class Success(val id: String, val talerUri: String, val qrCode: Bitmap) : WithdrawResult()
+}
+
+sealed class WithdrawStatus {
+ object Error : WithdrawStatus()
+ object Aborted : WithdrawStatus()
+ class SelectionDone(val withdrawalId: String) : WithdrawStatus()
+ object Confirming : WithdrawStatus()
+ object Success : WithdrawStatus()
+}
+
+data class LastTransaction(
+ val withdrawAmount: String,
+ val withdrawStatus: WithdrawStatus
+)
diff --git a/cashier/src/main/res/drawable-w550dp/ic_arrow.xml b/cashier/src/main/res/drawable-w550dp/ic_arrow.xml
new file mode 100644
index 0000000..331ea06
--- /dev/null
+++ b/cashier/src/main/res/drawable-w550dp/ic_arrow.xml
@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="24dp"
+ android:height="24dp"
+ android:alpha="0.56"
+ android:tint="@color/green"
+ android:viewportWidth="24"
+ android:viewportHeight="24">
+ <path
+ android:fillColor="#000000"
+ android:pathData="M20,5.41 L18.59,4 7,15.59V9H5V19H15V17H8.41" />
+</vector>
diff --git a/cashier/src/main/res/drawable/ic_arrow.xml b/cashier/src/main/res/drawable/ic_arrow.xml
new file mode 100644
index 0000000..d7578bd
--- /dev/null
+++ b/cashier/src/main/res/drawable/ic_arrow.xml
@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="24dp"
+ android:height="24dp"
+ android:alpha="0.56"
+ android:tint="@color/green"
+ android:viewportWidth="24"
+ android:viewportHeight="24">
+ <path
+ android:fillColor="#000000"
+ android:pathData="M5,5.41 L6.41,4 18,15.59V9h2V19H10v-2h6.59" />
+</vector>
diff --git a/cashier/src/main/res/drawable/ic_check_circle.xml b/cashier/src/main/res/drawable/ic_check_circle.xml
new file mode 100644
index 0000000..d43d6ba
--- /dev/null
+++ b/cashier/src/main/res/drawable/ic_check_circle.xml
@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="24dp"
+ android:height="24dp"
+ android:alpha="0.56"
+ android:viewportWidth="24.0"
+ android:viewportHeight="24.0">
+ <path
+ android:fillColor="#FF000000"
+ android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM10,17l-5,-5 1.41,-1.41L10,14.17l7.59,-7.59L19,8l-9,9z" />
+</vector>
diff --git a/cashier/src/main/res/drawable/ic_clear.xml b/cashier/src/main/res/drawable/ic_clear.xml
new file mode 100644
index 0000000..f50fd99
--- /dev/null
+++ b/cashier/src/main/res/drawable/ic_clear.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="24dp"
+ android:height="24dp"
+ android:viewportWidth="24.0"
+ android:viewportHeight="24.0">
+ <path
+ android:fillColor="#FF000000"
+ android:pathData="M19,6.41L17.59,5 12,10.59 6.41,5 5,6.41 10.59,12 5,17.59 6.41,19 12,13.41 17.59,19 19,17.59 13.41,12z" />
+</vector>
diff --git a/cashier/src/main/res/drawable/ic_error.xml b/cashier/src/main/res/drawable/ic_error.xml
new file mode 100644
index 0000000..b7e22a0
--- /dev/null
+++ b/cashier/src/main/res/drawable/ic_error.xml
@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="24dp"
+ android:height="24dp"
+ android:alpha="0.56"
+ android:tint="@color/red"
+ android:viewportWidth="24.0"
+ android:viewportHeight="24.0">
+ <path
+ android:fillColor="#FF000000"
+ android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM13,17h-2v-2h2v2zM13,13h-2L11,7h2v6z" />
+</vector>
diff --git a/cashier/src/main/res/drawable/ic_launcher_foreground.xml b/cashier/src/main/res/drawable/ic_launcher_foreground.xml
new file mode 100644
index 0000000..fbaac05
--- /dev/null
+++ b/cashier/src/main/res/drawable/ic_launcher_foreground.xml
@@ -0,0 +1,15 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:width="108dp"
+ android:height="108dp"
+ android:viewportWidth="48"
+ android:viewportHeight="48">
+ <group
+ android:translateX="12"
+ android:translateY="12">
+ <path
+ android:pathData="M6,3L6,6L9,6L9,7L6.25,7C5.05,7 4.0508,8 4.0508,9L3.5,16L20.5,16L20,9C19.8,8 18.8008,7 17.8008,7L11,7L11,6L14,6L14,3L6,3zM7,4L13,4L13,5L7,5L7,4zM6,9L8,9L8,10L6,10L6,9zM9,9L11,9L11,10L9,10L9,9zM13,9L18,9L18,11L13,11L13,9zM6,11L8,11L8,12L6,12L6,11zM9,11L11,11L11,12L9,12L9,11zM6,13L8,13L8,14L6,14L6,13zM9,13L11,13L11,14L9,14L9,13zM2,17L2,21L22,21L22,17L2,17zM4.7422,17.291L7.2695,17.291L7.2695,17.7793L6.3574,17.7793L6.3574,20.6777L5.6543,20.6777L5.6543,17.7793L4.7422,17.7793L4.7422,17.291zM11.0078,17.291L12.3613,17.291L12.3613,20.1895L13.0098,20.1895L13.0098,20.6777L10.9238,20.6777L10.9238,20.1895L11.6563,20.1895L11.6563,17.7793L11.0078,17.7793L11.0078,17.291zM8.9688,18.1992C9.092,18.1992 9.2128,18.2081 9.332,18.2266C9.4513,18.245 9.5646,18.2782 9.6719,18.3242C9.7792,18.3703 9.8736,18.4302 9.9531,18.5039C10.0326,18.5745 10.0892,18.6559 10.125,18.748C10.1608,18.8371 10.1797,18.9274 10.1797,19.0195L10.1797,20.6777L9.4746,20.6777L9.4746,20.3828L9.4395,20.4238C9.348,20.519 9.2329,20.5915 9.0938,20.6406C8.9546,20.6898 8.8092,20.7129 8.6582,20.7129C8.531,20.7129 8.4083,20.6978 8.2891,20.6641C8.1698,20.6303 8.066,20.5756 7.9785,20.502C7.8951,20.4252 7.8366,20.3393 7.8008,20.2441C7.765,20.149 7.7461,20.0514 7.7461,19.9531C7.7461,19.8549 7.7688,19.7592 7.8125,19.6641C7.8602,19.5689 7.932,19.4847 8.0273,19.4141C8.1227,19.3434 8.2284,19.2899 8.3477,19.25C8.4669,19.2101 8.5916,19.1814 8.7188,19.166C8.8459,19.1476 8.9743,19.1387 9.1055,19.1387L9.4746,19.1387L9.4746,19.0195C9.4746,18.9551 9.452,18.8951 9.4043,18.8398C9.3606,18.7846 9.2964,18.7461 9.2129,18.7246C9.1334,18.7 9.0522,18.6875 8.9688,18.6875C8.8932,18.6875 8.8177,18.6964 8.7422,18.7148C8.6667,18.7333 8.6024,18.7673 8.5508,18.8164C8.4991,18.8625 8.4651,18.9143 8.4492,18.9727L7.7813,18.834C7.813,18.702 7.8905,18.5849 8.0137,18.4805C8.1369,18.3761 8.2823,18.3036 8.4492,18.2637C8.6201,18.2207 8.7939,18.1992 8.9688,18.1992zM14.9473,18.1992C15.1221,18.1992 15.2921,18.2243 15.4551,18.2734C15.622,18.3226 15.7618,18.3995 15.873,18.5039C15.9883,18.6083 16.0695,18.7246 16.1172,18.8535C16.1649,18.9825 16.1875,19.1149 16.1875,19.25L16.1875,19.7012L14.4121,19.7012C14.416,19.7564 14.4255,19.8119 14.4414,19.8672C14.4613,19.9317 14.4953,19.9924 14.543,20.0508C14.5946,20.106 14.6607,20.149 14.7402,20.1797C14.8197,20.2104 14.9028,20.2266 14.9902,20.2266C15.0737,20.2266 15.1549,20.214 15.2344,20.1895C15.3139,20.1618 15.38,20.1206 15.4316,20.0684C15.4833,20.0131 15.5211,19.9531 15.5449,19.8887L16.1934,20.0781C16.1377,20.2071 16.0509,20.3225 15.9316,20.4238C15.8124,20.5251 15.6689,20.5985 15.502,20.6445C15.335,20.6906 15.1651,20.7129 14.9902,20.7129C14.8154,20.7129 14.6416,20.6906 14.4707,20.6445C14.3038,20.5954 14.1602,20.5212 14.041,20.4199C13.9218,20.3155 13.8368,20.1965 13.7852,20.0645C13.7335,19.9324 13.709,19.7992 13.709,19.6641L13.709,19.25C13.709,19.1149 13.7316,18.9825 13.7793,18.8535C13.827,18.7246 13.9063,18.6083 14.0176,18.5039C14.1328,18.3995 14.2726,18.3226 14.4355,18.2734C14.6025,18.2243 14.7724,18.1992 14.9473,18.1992zM18.502,18.1992C18.6172,18.1992 18.7286,18.2207 18.8359,18.2637C18.9432,18.3036 19.032,18.3599 19.1035,18.4336C19.179,18.5073 19.23,18.5879 19.2578,18.6738L18.6016,18.9121C18.5817,18.8507 18.5383,18.7988 18.4707,18.7559C18.4071,18.7098 18.3335,18.6875 18.25,18.6875C18.1228,18.6875 18.019,18.7304 17.9355,18.8164C17.8561,18.9024 17.8031,18.9935 17.7793,19.0918C17.7594,19.1808 17.75,19.2703 17.75,19.3594L17.75,20.6777L17.0469,20.6777L17.0469,18.2363L17.75,18.2363L17.75,18.6602C17.7778,18.6049 17.8118,18.5502 17.8516,18.498C17.9191,18.409 18.0097,18.3365 18.125,18.2813C18.2442,18.226 18.3708,18.1992 18.502,18.1992zM14.9473,18.6875C14.8638,18.6875 14.7826,18.7045 14.7031,18.7383C14.6276,18.769 14.5691,18.8128 14.5254,18.8711C14.4817,18.9294 14.4514,18.9922 14.4355,19.0566C14.4236,19.1088 14.4161,19.1607 14.4121,19.2129L15.4844,19.2129C15.4804,19.1607 15.4729,19.1088 15.4609,19.0566C15.445,18.9922 15.4148,18.9294 15.3711,18.8711C15.3274,18.8128 15.265,18.769 15.1855,18.7383C15.11,18.7045 15.0307,18.6875 14.9473,18.6875zM9.1055,19.627C9.0101,19.627 8.9157,19.6359 8.8203,19.6543C8.7249,19.6696 8.638,19.7045 8.5625,19.7598C8.487,19.812 8.4492,19.8764 8.4492,19.9531C8.4492,20.0084 8.4719,20.0594 8.5156,20.1055C8.5593,20.1515 8.616,20.1847 8.6875,20.2031C8.759,20.2185 8.8308,20.2266 8.9023,20.2266C9.0057,20.2266 9.1058,20.2068 9.2012,20.1699C9.2966,20.13 9.3664,20.0737 9.4102,20C9.4539,19.9263 9.4746,19.8502 9.4746,19.7734L9.4746,19.627L9.1055,19.627z"
+ android:fillColor="#f9f9f9"
+ tools:ignore="VectorPath" />
+ </group>
+</vector>
diff --git a/cashier/src/main/res/drawable/ic_withdraw.xml b/cashier/src/main/res/drawable/ic_withdraw.xml
new file mode 100644
index 0000000..b694a2b
--- /dev/null
+++ b/cashier/src/main/res/drawable/ic_withdraw.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="24dp"
+ android:height="24dp"
+ android:viewportWidth="24"
+ android:viewportHeight="24">
+ <path
+ android:fillColor="#000000"
+ android:pathData="M3 0V3H0V5H3V8H5V5H8V3H5V0H3M9 3V6H6V9H3V19C3 20.1 3.89 21 5 21H19C20.11 21 21 20.11 21 19V18H12C10.9 18 10 17.11 10 16V8C10 6.9 10.89 6 12 6H21V5C21 3.9 20.11 3 19 3H9M12 8V16H22V8H12M16 10.5C16.83 10.5 17.5 11.17 17.5 12C17.5 12.83 16.83 13.5 16 13.5C15.17 13.5 14.5 12.83 14.5 12C14.5 11.17 15.17 10.5 16 10.5Z" />
+</vector>
diff --git a/cashier/src/main/res/layout-w550dp/fragment_balance.xml b/cashier/src/main/res/layout-w550dp/fragment_balance.xml
new file mode 100644
index 0000000..d04698b
--- /dev/null
+++ b/cashier/src/main/res/layout-w550dp/fragment_balance.xml
@@ -0,0 +1,222 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".BalanceFragment">
+
+ <TextView
+ android:id="@+id/lastTransactionView"
+ style="@style/Widget.MaterialComponents.Snackbar.FullWidth"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:background="?attr/colorPrimaryDark"
+ android:drawableStart="@drawable/ic_check_circle"
+ android:drawablePadding="8dp"
+ android:drawableTint="?attr/colorOnPrimarySurface"
+ android:gravity="center_vertical"
+ android:padding="8dp"
+ android:textColor="?attr/colorOnPrimarySurface"
+ android:visibility="gone"
+ app:layout_constraintEnd_toStartOf="@+id/guideline"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:text="@string/transaction_last_success"
+ tools:visibility="visible" />
+
+ <View
+ android:id="@+id/balanceBackground"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:background="@color/background"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="@+id/guideline"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/lastTransactionView" />
+
+ <TextView
+ android:id="@+id/balanceLabel"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="32dp"
+ android:layout_marginTop="32dp"
+ android:layout_marginEnd="32dp"
+ android:text="@string/balance_current_label"
+ android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+ app:layout_constraintBottom_toTopOf="@+id/balanceView"
+ app:layout_constraintEnd_toStartOf="@+id/guideline"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/lastTransactionView"
+ app:layout_constraintVertical_bias="0.0"
+ app:layout_constraintVertical_chainStyle="packed" />
+
+ <TextView
+ android:id="@+id/balanceView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="@dimen/default_margin"
+ android:gravity="center"
+ android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toStartOf="@+id/guideline"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/balanceLabel"
+ tools:text="100 KUDOS" />
+
+ <ProgressBar
+ android:id="@+id/progressBar"
+ style="?android:attr/progressBarStyle"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ app:layout_constraintBottom_toBottomOf="@+id/balanceView"
+ app:layout_constraintEnd_toEndOf="@+id/balanceView"
+ app:layout_constraintStart_toStartOf="@+id/balanceView"
+ app:layout_constraintTop_toTopOf="@+id/balanceView" />
+
+ <androidx.constraintlayout.widget.Guideline
+ android:id="@+id/guideline"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:orientation="vertical"
+ app:layout_constraintGuide_percent="0.5" />
+
+ <TextView
+ android:id="@+id/introView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="32dp"
+ android:text="@string/withdraw_into"
+ android:textAlignment="center"
+ android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+ android:visibility="invisible"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="@+id/guideline"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:visibility="visible" />
+
+ <Button
+ android:id="@+id/button5"
+ style="@style/AmountButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="5"
+ android:visibility="invisible"
+ app:layout_constraintEnd_toStartOf="@+id/button10"
+ app:layout_constraintHorizontal_chainStyle="packed"
+ app:layout_constraintStart_toStartOf="@+id/guideline"
+ app:layout_constraintTop_toBottomOf="@+id/introView"
+ tools:ignore="HardcodedText"
+ tools:visibility="visible" />
+
+ <Button
+ android:id="@+id/button10"
+ style="@style/AmountButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="10"
+ android:visibility="invisible"
+ app:layout_constraintEnd_toStartOf="@+id/button20"
+ app:layout_constraintStart_toEndOf="@+id/button5"
+ app:layout_constraintTop_toBottomOf="@+id/introView"
+ tools:ignore="HardcodedText"
+ tools:visibility="visible" />
+
+ <Button
+ android:id="@+id/button20"
+ style="@style/AmountButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="20"
+ android:visibility="invisible"
+ app:layout_constraintEnd_toStartOf="@+id/button50"
+ app:layout_constraintStart_toEndOf="@+id/button10"
+ app:layout_constraintTop_toBottomOf="@+id/introView"
+ tools:ignore="HardcodedText"
+ tools:visibility="visible" />
+
+ <Button
+ android:id="@+id/button50"
+ style="@style/AmountButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="50"
+ android:visibility="invisible"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toEndOf="@+id/button20"
+ app:layout_constraintTop_toBottomOf="@+id/introView"
+ tools:ignore="HardcodedText"
+ tools:visibility="visible" />
+
+ <com.google.android.material.textfield.TextInputLayout
+ android:id="@+id/amountView"
+ style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="32dp"
+ android:hint="@string/withdraw_input_amount"
+ android:visibility="invisible"
+ app:endIconDrawable="@drawable/ic_clear"
+ app:endIconMode="clear_text"
+ app:endIconTint="?attr/colorControlNormal"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="@+id/guideline"
+ app:layout_constraintTop_toBottomOf="@+id/button5"
+ tools:visibility="visible">
+
+ <com.google.android.material.textfield.TextInputEditText
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:ems="6"
+ android:imeOptions="actionGo"
+ android:inputType="number"
+ android:maxLength="4" />
+
+ </com.google.android.material.textfield.TextInputLayout>
+
+ <TextView
+ android:id="@+id/currencyView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:visibility="invisible"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toEndOf="@+id/amountView"
+ app:layout_constraintTop_toTopOf="@+id/amountView"
+ tools:text="TESTKUDOS"
+ tools:visibility="visible" />
+
+ <com.google.android.material.button.MaterialButton
+ android:id="@+id/confirmWithdrawalButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="@dimen/default_margin"
+ android:backgroundTint="@color/green"
+ android:drawableLeft="@drawable/ic_withdraw"
+ android:drawableTint="?attr/colorOnPrimarySurface"
+ android:text="@string/withdraw_button_confirm"
+ android:visibility="invisible"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="@+id/guideline"
+ app:layout_constraintTop_toBottomOf="@+id/amountView"
+ app:layout_constraintVertical_bias="1.0"
+ tools:ignore="RtlHardcoded"
+ tools:visibility="visible" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/cashier/src/main/res/layout-w550dp/fragment_transaction.xml b/cashier/src/main/res/layout-w550dp/fragment_transaction.xml
new file mode 100644
index 0000000..610ed28
--- /dev/null
+++ b/cashier/src/main/res/layout-w550dp/fragment_transaction.xml
@@ -0,0 +1,111 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".withdraw.TransactionFragment">
+
+ <TextView
+ android:id="@+id/introView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="32dp"
+ android:gravity="center_horizontal"
+ android:text="@string/transaction_intro"
+ android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+ app:layout_constraintEnd_toStartOf="@+id/guideline"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent" />
+
+ <TextView
+ android:id="@+id/amountView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="32dp"
+ android:gravity="center_horizontal"
+ android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+ app:layout_constraintEnd_toStartOf="@+id/guideline"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/introView"
+ tools:text="50 KUDOS" />
+
+ <androidx.constraintlayout.widget.Guideline
+ android:id="@+id/guideline"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:orientation="vertical"
+ app:layout_constraintGuide_percent="0.5" />
+
+ <ImageView
+ android:id="@+id/qrCodeView"
+ android:layout_width="256dp"
+ android:layout_height="256dp"
+ android:layout_margin="32dp"
+ android:keepScreenOn="true"
+ android:visibility="invisible"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="@+id/guideline"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:ignore="ContentDescription"
+ tools:src="@drawable/ic_arrow"
+ tools:visibility="visible" />
+
+ <ProgressBar
+ android:id="@+id/progressBar"
+ style="?android:attr/progressBarStyleLarge"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ app:layout_constraintBottom_toBottomOf="@+id/qrCodeView"
+ app:layout_constraintEnd_toEndOf="@+id/qrCodeView"
+ app:layout_constraintStart_toStartOf="@+id/qrCodeView"
+ app:layout_constraintTop_toTopOf="@+id/qrCodeView" />
+
+ <Button
+ android:id="@+id/cancelButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:backgroundTint="@color/red"
+ android:text="@string/transaction_abort"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toStartOf="@+id/confirmButton"
+ app:layout_constraintHorizontal_bias="0.5"
+ app:layout_constraintHorizontal_chainStyle="spread_inside"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/qrCodeView"
+ app:layout_constraintVertical_bias="1.0" />
+
+ <Button
+ android:id="@+id/confirmButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:backgroundTint="@color/green"
+ android:enabled="false"
+ android:text="@string/transaction_confirm"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintEnd_toStartOf="@+id/guideline"
+ app:layout_constraintHorizontal_bias="0.5"
+ app:layout_constraintStart_toEndOf="@+id/cancelButton"
+ tools:enabled="true" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/cashier/src/main/res/layout/activity_main.xml b/cashier/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..e41b842
--- /dev/null
+++ b/cashier/src/main/res/layout/activity_main.xml
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".MainActivity">
+
+ <com.google.android.material.appbar.AppBarLayout
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:theme="@style/AppTheme.AppBarOverlay">
+
+ <com.google.android.material.appbar.MaterialToolbar
+ android:id="@+id/toolbar"
+ style="@style/AppTheme.Toolbar"
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content" />
+
+ </com.google.android.material.appbar.AppBarLayout>
+
+ <androidx.fragment.app.FragmentContainerView
+ android:id="@+id/nav_host_fragment"
+ android:name="androidx.navigation.fragment.NavHostFragment"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ app:defaultNavHost="true"
+ app:layout_behavior="@string/appbar_scrolling_view_behavior"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintLeft_toLeftOf="parent"
+ app:layout_constraintRight_toRightOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ app:navGraph="@navigation/nav_graph" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/cashier/src/main/res/layout/fragment_balance.xml b/cashier/src/main/res/layout/fragment_balance.xml
new file mode 100644
index 0000000..5dafc59
--- /dev/null
+++ b/cashier/src/main/res/layout/fragment_balance.xml
@@ -0,0 +1,225 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".BalanceFragment">
+
+ <TextView
+ android:id="@+id/lastTransactionView"
+ style="@style/Widget.MaterialComponents.Snackbar.FullWidth"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:background="?attr/colorPrimaryDark"
+ android:drawableStart="@drawable/ic_check_circle"
+ android:drawablePadding="8dp"
+ android:drawableTint="?attr/colorOnPrimarySurface"
+ android:gravity="center_vertical"
+ android:padding="8dp"
+ android:textColor="?attr/colorOnPrimarySurface"
+ android:visibility="gone"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:text="@string/transaction_last_success"
+ tools:visibility="visible" />
+
+ <View
+ android:id="@+id/balanceBackground"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:background="@color/background"
+ app:layout_constraintBottom_toBottomOf="@+id/balanceView"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/lastTransactionView" />
+
+ <TextView
+ android:id="@+id/balanceLabel"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="@dimen/default_margin"
+ android:text="@string/balance_current_label"
+ android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/lastTransactionView" />
+
+ <TextView
+ android:id="@+id/balanceView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:paddingStart="@dimen/default_margin"
+ android:paddingTop="8dp"
+ android:gravity="center"
+ android:paddingEnd="@dimen/default_margin"
+ android:paddingBottom="@dimen/default_margin"
+ android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/balanceLabel"
+ tools:text="100 KUDOS" />
+
+ <ProgressBar
+ android:id="@+id/progressBar"
+ style="?android:attr/progressBarStyle"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ app:layout_constraintBottom_toBottomOf="@+id/balanceView"
+ app:layout_constraintEnd_toEndOf="@+id/balanceView"
+ app:layout_constraintStart_toStartOf="@+id/balanceView"
+ app:layout_constraintTop_toTopOf="@+id/balanceView" />
+
+ <TextView
+ android:id="@+id/introView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="@dimen/default_margin"
+ android:layout_marginTop="32dp"
+ android:layout_marginEnd="@dimen/default_margin"
+ android:text="@string/withdraw_into"
+ android:textAlignment="center"
+ android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+ android:visibility="invisible"
+ app:layout_constraintBottom_toTopOf="@+id/button5"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/balanceBackground"
+ app:layout_constraintVertical_bias="0.25"
+ app:layout_constraintVertical_chainStyle="packed"
+ tools:visibility="visible" />
+
+ <Button
+ android:id="@+id/button5"
+ style="@style/AmountButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="5"
+ android:visibility="invisible"
+ app:layout_constraintBottom_toTopOf="@+id/amountView"
+ app:layout_constraintEnd_toStartOf="@+id/button10"
+ app:layout_constraintHorizontal_bias="0.5"
+ app:layout_constraintHorizontal_chainStyle="packed"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/introView"
+ tools:ignore="HardcodedText"
+ tools:visibility="visible" />
+
+ <Button
+ android:id="@+id/button10"
+ style="@style/AmountButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="10"
+ android:visibility="invisible"
+ app:layout_constraintEnd_toStartOf="@+id/button20"
+ app:layout_constraintStart_toEndOf="@+id/button5"
+ app:layout_constraintTop_toBottomOf="@+id/introView"
+ tools:ignore="HardcodedText"
+ tools:visibility="visible" />
+
+ <Button
+ android:id="@+id/button20"
+ style="@style/AmountButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="20"
+ android:visibility="invisible"
+ app:layout_constraintEnd_toStartOf="@+id/button50"
+ app:layout_constraintStart_toEndOf="@+id/button10"
+ app:layout_constraintTop_toBottomOf="@+id/introView"
+ tools:ignore="HardcodedText"
+ tools:visibility="visible" />
+
+ <Button
+ android:id="@+id/button50"
+ style="@style/AmountButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="50"
+ android:visibility="invisible"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toEndOf="@+id/button20"
+ app:layout_constraintTop_toBottomOf="@+id/introView"
+ tools:ignore="HardcodedText"
+ tools:visibility="visible" />
+
+ <com.google.android.material.textfield.TextInputLayout
+ android:id="@+id/amountView"
+ style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="@dimen/default_margin"
+ android:layout_marginTop="@dimen/default_margin"
+ android:hint="@string/withdraw_input_amount"
+ android:visibility="invisible"
+ app:endIconDrawable="@drawable/ic_clear"
+ app:endIconMode="clear_text"
+ app:endIconTint="?attr/colorControlNormal"
+ app:layout_constraintBottom_toTopOf="@+id/confirmWithdrawalButton"
+ app:layout_constraintEnd_toStartOf="@+id/currencyView"
+ app:layout_constraintHorizontal_bias="0.5"
+ app:layout_constraintHorizontal_chainStyle="packed"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/button5"
+ tools:visibility="visible">
+
+ <com.google.android.material.textfield.TextInputEditText
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:ems="6"
+ android:imeOptions="actionGo"
+ android:inputType="number"
+ android:maxLength="4" />
+
+ </com.google.android.material.textfield.TextInputLayout>
+
+ <TextView
+ android:id="@+id/currencyView"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="@dimen/default_margin"
+ android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+ android:visibility="invisible"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="0.5"
+ app:layout_constraintStart_toEndOf="@+id/amountView"
+ app:layout_constraintTop_toTopOf="@+id/amountView"
+ tools:text="TESTKUDOS"
+ tools:visibility="visible" />
+
+ <com.google.android.material.button.MaterialButton
+ android:id="@+id/confirmWithdrawalButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="@dimen/default_margin"
+ android:backgroundTint="@color/green"
+ android:drawableLeft="@drawable/ic_withdraw"
+ android:drawableTint="?attr/colorOnPrimarySurface"
+ android:text="@string/withdraw_button_confirm"
+ android:visibility="invisible"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="0.5"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/amountView"
+ tools:ignore="RtlHardcoded"
+ tools:visibility="visible" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/cashier/src/main/res/layout/fragment_config.xml b/cashier/src/main/res/layout/fragment_config.xml
new file mode 100644
index 0000000..47ec6f9
--- /dev/null
+++ b/cashier/src/main/res/layout/fragment_config.xml
@@ -0,0 +1,112 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent">
+
+ <com.google.android.material.textfield.TextInputLayout
+ android:id="@+id/urlView"
+ style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="@dimen/default_margin"
+ android:hint="@string/config_bank_url"
+ app:endIconMode="clear_text"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent">
+
+ <com.google.android.material.textfield.TextInputEditText
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:inputType="textUri" />
+
+ </com.google.android.material.textfield.TextInputLayout>
+
+ <com.google.android.material.textfield.TextInputLayout
+ android:id="@+id/usernameView"
+ style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="@dimen/default_margin"
+ android:hint="@string/config_username"
+ app:boxBackgroundMode="outline"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/urlView">
+
+ <com.google.android.material.textfield.TextInputEditText
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:inputType="text" />
+
+ </com.google.android.material.textfield.TextInputLayout>
+
+ <com.google.android.material.textfield.TextInputLayout
+ android:id="@+id/passwordView"
+ style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="@dimen/default_margin"
+ android:hint="@string/config_password"
+ app:boxBackgroundMode="outline"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/usernameView"
+ app:passwordToggleEnabled="true">
+
+ <com.google.android.material.textfield.TextInputEditText
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:inputType="textWebPassword" />
+
+ </com.google.android.material.textfield.TextInputLayout>
+
+ <Button
+ android:id="@+id/saveButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="@dimen/default_margin"
+ android:text="@string/config_button_save"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/passwordView" />
+
+ <ProgressBar
+ android:id="@+id/progressBar"
+ style="?android:attr/progressBarStyle"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:visibility="invisible"
+ app:layout_constraintBottom_toBottomOf="@+id/saveButton"
+ app:layout_constraintEnd_toEndOf="@+id/saveButton"
+ app:layout_constraintStart_toStartOf="@+id/saveButton"
+ app:layout_constraintTop_toTopOf="@+id/saveButton"
+ tools:visibility="visible" />
+
+ <TextView
+ android:id="@+id/demoView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="@dimen/default_margin"
+ android:text="@string/config_demo_hint"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/saveButton" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/cashier/src/main/res/layout/fragment_error.xml b/cashier/src/main/res/layout/fragment_error.xml
new file mode 100644
index 0000000..ac34c85
--- /dev/null
+++ b/cashier/src/main/res/layout/fragment_error.xml
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:id="@+id/frameLayout"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".withdraw.ErrorFragment">
+
+ <ImageView
+ android:id="@+id/imageView"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:layout_margin="32dp"
+ android:src="@drawable/ic_error"
+ app:layout_constraintBottom_toTopOf="@+id/textView"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="0.5"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:ignore="ContentDescription" />
+
+ <androidx.appcompat.widget.AppCompatTextView
+ android:id="@+id/textView"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:layout_margin="32dp"
+ android:text="@string/transaction_error"
+ android:textAlignment="center"
+ android:textColor="@color/red"
+ app:autoSizeMaxTextSize="42sp"
+ app:autoSizeTextType="uniform"
+ app:layout_constraintBottom_toTopOf="@+id/backButton"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="0.5"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/imageView" />
+
+ <Button
+ android:id="@+id/backButton"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:text="@string/transaction_button_back"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout> \ No newline at end of file
diff --git a/cashier/src/main/res/layout/fragment_transaction.xml b/cashier/src/main/res/layout/fragment_transaction.xml
new file mode 100644
index 0000000..3affbf2
--- /dev/null
+++ b/cashier/src/main/res/layout/fragment_transaction.xml
@@ -0,0 +1,100 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".withdraw.TransactionFragment">
+
+ <TextView
+ android:id="@+id/introView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="32dp"
+ android:gravity="center_horizontal"
+ android:text="@string/transaction_intro"
+ android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent" />
+
+ <TextView
+ android:id="@+id/amountView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="32dp"
+ android:gravity="center_horizontal"
+ android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/introView"
+ tools:text="50 KUDOS" />
+
+ <ImageView
+ android:id="@+id/qrCodeView"
+ android:layout_width="256dp"
+ android:layout_height="256dp"
+ android:layout_margin="32dp"
+ android:keepScreenOn="true"
+ android:visibility="invisible"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/amountView"
+ tools:ignore="ContentDescription"
+ tools:src="@drawable/ic_arrow"
+ tools:visibility="visible" />
+
+ <ProgressBar
+ android:id="@+id/progressBar"
+ style="?android:attr/progressBarStyleLarge"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ app:layout_constraintBottom_toBottomOf="@+id/qrCodeView"
+ app:layout_constraintEnd_toEndOf="@+id/qrCodeView"
+ app:layout_constraintStart_toStartOf="@+id/qrCodeView"
+ app:layout_constraintTop_toTopOf="@+id/qrCodeView" />
+
+ <Button
+ android:id="@+id/cancelButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:backgroundTint="@color/red"
+ android:text="@string/transaction_abort"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toStartOf="@+id/confirmButton"
+ app:layout_constraintHorizontal_chainStyle="spread_inside"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/qrCodeView"
+ app:layout_constraintVertical_bias="1.0" />
+
+ <Button
+ android:id="@+id/confirmButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:backgroundTint="@color/green"
+ android:enabled="false"
+ android:text="@string/transaction_confirm"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toEndOf="@+id/cancelButton"
+ tools:enabled="true" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/cashier/src/main/res/menu/balance.xml b/cashier/src/main/res/menu/balance.xml
new file mode 100644
index 0000000..bc64af3
--- /dev/null
+++ b/cashier/src/main/res/menu/balance.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto">
+
+ <item
+ android:id="@+id/action_reconfigure"
+ android:title="@string/action_reconfigure"
+ app:showAsAction="never" />
+ <item
+ android:id="@+id/action_lock"
+ android:title="@string/action_lock"
+ app:showAsAction="never" />
+
+</menu>
diff --git a/cashier/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/cashier/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..7353dbd
--- /dev/null
+++ b/cashier/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+ <background android:drawable="@color/ic_launcher_background"/>
+ <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon> \ No newline at end of file
diff --git a/cashier/src/main/res/mipmap-hdpi/ic_launcher.png b/cashier/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..c52928c
--- /dev/null
+++ b/cashier/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/cashier/src/main/res/mipmap-mdpi/ic_launcher.png b/cashier/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..b97178b
--- /dev/null
+++ b/cashier/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/cashier/src/main/res/mipmap-xhdpi/ic_launcher.png b/cashier/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..8f92c07
--- /dev/null
+++ b/cashier/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/cashier/src/main/res/mipmap-xxhdpi/ic_launcher.png b/cashier/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..214cbea
--- /dev/null
+++ b/cashier/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/cashier/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/cashier/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..b959cd3
--- /dev/null
+++ b/cashier/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/cashier/src/main/res/navigation/nav_graph.xml b/cashier/src/main/res/navigation/nav_graph.xml
new file mode 100644
index 0000000..49f8881
--- /dev/null
+++ b/cashier/src/main/res/navigation/nav_graph.xml
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:id="@+id/nav_graph"
+ app:startDestination="@id/balanceFragment"
+ tools:ignore="UnusedNavigation">
+
+ <fragment
+ android:id="@+id/configFragment"
+ android:name="net.taler.cashier.ConfigFragment"
+ android:label="ConfigFragment"
+ tools:layout="@layout/fragment_config">
+ <action
+ android:id="@+id/action_configFragment_to_balanceFragment"
+ app:destination="@id/balanceFragment"
+ app:launchSingleTop="true"
+ app:popUpTo="@id/balanceFragment" />
+ </fragment>
+
+ <fragment
+ android:id="@+id/balanceFragment"
+ android:name="net.taler.cashier.BalanceFragment"
+ android:label="fragment_balance"
+ tools:layout="@layout/fragment_balance">
+ <action
+ android:id="@+id/action_balanceFragment_to_transactionFragment"
+ app:destination="@id/transactionFragment" />
+ </fragment>
+
+ <fragment
+ android:id="@+id/transactionFragment"
+ android:name="net.taler.cashier.withdraw.TransactionFragment"
+ android:label="fragment_transaction"
+ tools:layout="@layout/fragment_transaction">
+ <action
+ android:id="@+id/action_transactionFragment_to_errorFragment"
+ app:destination="@id/errorFragment"
+ app:launchSingleTop="true"
+ app:popUpTo="@+id/balanceFragment" />
+ <action
+ android:id="@+id/action_transactionFragment_to_balanceFragment"
+ app:destination="@id/balanceFragment"
+ app:launchSingleTop="true"
+ app:popUpTo="@+id/balanceFragment" />
+ </fragment>
+
+ <fragment
+ android:id="@+id/errorFragment"
+ android:name="net.taler.cashier.withdraw.ErrorFragment"
+ tools:layout="@layout/fragment_error" />
+
+ <action
+ android:id="@+id/action_global_configFragment"
+ app:destination="@id/configFragment"
+ app:launchSingleTop="true" />
+
+</navigation>
diff --git a/cashier/src/main/res/values-night/colors.xml b/cashier/src/main/res/values-night/colors.xml
new file mode 100644
index 0000000..55dde58
--- /dev/null
+++ b/cashier/src/main/res/values-night/colors.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<resources>
+ <color name="background">#222222</color>
+</resources>
diff --git a/cashier/src/main/res/values/colors.xml b/cashier/src/main/res/values/colors.xml
new file mode 100644
index 0000000..61338da
--- /dev/null
+++ b/cashier/src/main/res/values/colors.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+ <color name="colorPrimary">#1565C0</color>
+ <color name="colorPrimaryDark">#6A1B9A</color>
+ <color name="colorAccent">#D81B60</color>
+
+ <color name="background">#F1F1F1</color>
+ <color name="green">#388E3C</color>
+ <color name="red">#D32F2F</color>
+</resources>
diff --git a/cashier/src/main/res/values/dimens.xml b/cashier/src/main/res/values/dimens.xml
new file mode 100644
index 0000000..9d9d85a
--- /dev/null
+++ b/cashier/src/main/res/values/dimens.xml
@@ -0,0 +1,3 @@
+<resources>
+ <dimen name="default_margin">16dp</dimen>
+</resources>
diff --git a/cashier/src/main/res/values/ic_launcher_background.xml b/cashier/src/main/res/values/ic_launcher_background.xml
new file mode 100644
index 0000000..3862264
--- /dev/null
+++ b/cashier/src/main/res/values/ic_launcher_background.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+ <color name="ic_launcher_background">#1565C0</color>
+</resources> \ No newline at end of file
diff --git a/cashier/src/main/res/values/strings.xml b/cashier/src/main/res/values/strings.xml
new file mode 100644
index 0000000..5df5bfa
--- /dev/null
+++ b/cashier/src/main/res/values/strings.xml
@@ -0,0 +1,39 @@
+<resources>
+ <string name="app_name">Taler Cashier</string>
+
+ <string name="config_bank_url">Bank API address</string>
+ <string name="config_username">Username</string>
+ <string name="config_password">Password</string>
+ <string name="config_button_save">Save</string>
+ <string name="config_bank_url_error">The address in invalid.</string>
+ <string name="config_username_error">Please enter your username</string>
+ <string name="config_error">Error retrieving configuration</string>
+ <string name="config_error_auth">Invalid username or password</string>
+ <string name="config_demo_hint">For testing, you can <![CDATA[<a href="%s">create a test account at the demo bank</a>]]>.</string>
+
+ <string name="balance_current_label">Current balance</string>
+ <string name="balance_error">ERROR</string>
+ <string name="balance_offline">Offline. Please connect to the Internet</string>
+ <string name="action_reconfigure">Reconfigure</string>
+ <string name="action_lock">Lock</string>
+
+ <string name="withdraw_input_amount">Amount</string>
+ <string name="withdraw_into">How much e-cash should be withdrawn?</string>
+ <string name="withdraw_error_zero">Enter positive amount</string>
+ <string name="withdraw_error_insufficient_balance">Insufficient balance</string>
+ <string name="withdraw_error_fetch">Error communicating with bank</string>
+ <string name="withdraw_button_confirm">Withdraw</string>
+
+ <string name="transaction_intro">Scan code\nwith the Taler wallet app\nto get</string>
+ <string name="transaction_intro_nfc">Scan code or use NFC\nwith the Taler wallet app\nto get</string>
+ <string name="transaction_intro_scanned">Please confirm the transaction!</string>
+ <string name="transaction_confirm">Confirm</string>
+ <string name="transaction_abort">Abort</string>
+ <string name="transaction_error">Transaction error</string>
+ <string name="transaction_aborted">Transaction aborted</string>
+ <string name="transaction_button_back">Go back</string>
+ <string name="transaction_last_success">Last Transaction: %s withdrawn</string>
+ <string name="transaction_last_aborted">Last Transaction: Aborted</string>
+ <string name="transaction_last_error">Last Transaction: Error</string>
+
+</resources>
diff --git a/cashier/src/main/res/values/styles.xml b/cashier/src/main/res/values/styles.xml
new file mode 100644
index 0000000..4339684
--- /dev/null
+++ b/cashier/src/main/res/values/styles.xml
@@ -0,0 +1,28 @@
+<resources>
+
+ <style name="AppTheme" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+ <item name="colorPrimary">@color/colorPrimary</item>
+ <item name="colorOnPrimary">@color/design_default_color_background</item>
+ <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+ <item name="colorSecondary">@color/colorAccent</item>
+ <item name="colorOnSecondary">@color/design_default_color_background</item>
+ <item name="colorAccent">@color/colorAccent</item>
+ </style>
+
+ <style name="AppTheme.NoActionBar">
+ <item name="windowActionBar">false</item>
+ <item name="windowNoTitle">true</item>
+ </style>
+
+ <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.MaterialComponents.ActionBar" />
+
+ <style name="AppTheme.Toolbar" parent="Widget.MaterialComponents.Toolbar.Primary" />
+
+ <style name="AmountButton" parent="Widget.MaterialComponents.Button">
+ <item name="android:minWidth">48dp</item>
+ <item name="android:layout_marginStart">@dimen/default_margin</item>
+ <item name="android:layout_marginEnd">@dimen/default_margin</item>
+ <item name="android:layout_marginTop">16dp</item>
+ </style>
+
+</resources>
diff --git a/cashier/src/main/res/xml/backup_descriptor.xml b/cashier/src/main/res/xml/backup_descriptor.xml
new file mode 100644
index 0000000..a298494
--- /dev/null
+++ b/cashier/src/main/res/xml/backup_descriptor.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<full-backup-content>
+
+</full-backup-content>
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..00f6d64
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,21 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Automatically convert third-party libraries to use AndroidX
+android.enableJetifier=false
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..f6b961f
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..daff887
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Mar 18 13:36:36 BRT 2020
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..cccdd3d
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+## Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+ ls=`ls -ld "$PRG"`
+ link=`expr "$ls" : '.*-> \(.*\)$'`
+ if expr "$link" : '/.*' > /dev/null; then
+ PRG="$link"
+ else
+ PRG=`dirname "$PRG"`"/$link"
+ fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+ echo "$*"
+}
+
+die () {
+ echo
+ echo "$*"
+ echo
+ exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+ CYGWIN* )
+ cygwin=true
+ ;;
+ Darwin* )
+ darwin=true
+ ;;
+ MINGW* )
+ msys=true
+ ;;
+ NONSTOP* )
+ nonstop=true
+ ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD="$JAVA_HOME/jre/sh/java"
+ else
+ JAVACMD="$JAVA_HOME/bin/java"
+ fi
+ if [ ! -x "$JAVACMD" ] ; then
+ die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD="java"
+ which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+ MAX_FD_LIMIT=`ulimit -H -n`
+ if [ $? -eq 0 ] ; then
+ if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+ MAX_FD="$MAX_FD_LIMIT"
+ fi
+ ulimit -n $MAX_FD
+ if [ $? -ne 0 ] ; then
+ warn "Could not set maximum file descriptor limit: $MAX_FD"
+ fi
+ else
+ warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+ fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+ GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+ APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+ CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+ JAVACMD=`cygpath --unix "$JAVACMD"`
+
+ # We build the pattern for arguments to be converted via cygpath
+ ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+ SEP=""
+ for dir in $ROOTDIRSRAW ; do
+ ROOTDIRS="$ROOTDIRS$SEP$dir"
+ SEP="|"
+ done
+ OURCYGPATTERN="(^($ROOTDIRS))"
+ # Add a user-defined pattern to the cygpath arguments
+ if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+ OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+ fi
+ # Now convert the arguments - kludge to limit ourselves to /bin/sh
+ i=0
+ for arg in "$@" ; do
+ CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+ CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
+
+ if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
+ eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+ else
+ eval `echo args$i`="\"$arg\""
+ fi
+ i=$((i+1))
+ done
+ case $i in
+ (0) set -- ;;
+ (1) set -- "$args0" ;;
+ (2) set -- "$args0" "$args1" ;;
+ (3) set -- "$args0" "$args1" "$args2" ;;
+ (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+ (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+ (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+ (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+ (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+ (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+ esac
+fi
+
+# Escape application args
+save () {
+ for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+ echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+ cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..e95643d
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/merchant-terminal/.gitignore b/merchant-terminal/.gitignore
new file mode 100644
index 0000000..796b96d
--- /dev/null
+++ b/merchant-terminal/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/merchant-terminal/.gitlab-ci.yml b/merchant-terminal/.gitlab-ci.yml
new file mode 100644
index 0000000..4c03405
--- /dev/null
+++ b/merchant-terminal/.gitlab-ci.yml
@@ -0,0 +1,36 @@
+merchant_test:
+ stage: test
+ only:
+ changes:
+ - "merchant-terminal"
+ script: ./gradlew :merchant-terminal:lint :merchant-terminal:assembleRelease
+
+merchant_deploy_nightly:
+ stage: deploy
+ only:
+ refs:
+ - master
+ changes:
+ - "merchant-terminal"
+ script:
+ # Ensure that key exists
+ - test -z "$DEBUG_KEYSTORE" && exit 0
+ # Rename nightly app
+ - sed -i
+ 's,<string name="app_name">.*</string>,<string name="app_name">Merchant PoS Nightly</string>,'
+ merchant-terminal/src/main/res/values*/strings.xml
+ # Set time-based version code
+ - export versionCode=$(date '+%s')
+ - sed -i "s,^\(\s*versionCode\) *[0-9].*,\1 $versionCode," merchant-terminal/build.gradle
+ # Add commit to version name
+ - export versionName=$(git rev-parse --short=7 HEAD)
+ - sed -i "s,^\(\s*versionName\ *\"[0-9].*\)\",\1 ($versionName)\"," merchant-terminal/build.gradle
+ # Set nightly application ID
+ - sed -i "s,^\(\s*applicationId\) \"*[a-z\.].*\",\1 \"net.taler.merchantpos.nightly\"," merchant-terminal/build.gradle
+ # Build the APK
+ - ./gradlew :merchant-terminal:assembleDebug
+ # START only needed while patch not accepted/released upstream
+ - apt update && apt install patch
+ - patch /usr/lib/python3/dist-packages/fdroidserver/nightly.py nightly-stats.patch
+ # END
+ - CI_PROJECT_URL="https://gitlab.com/gnu-taler/fdroid-repo" CI_PROJECT_PATH="gnu-taler/fdroid-repo" fdroid nightly -v
diff --git a/merchant-terminal/build.gradle b/merchant-terminal/build.gradle
new file mode 100644
index 0000000..594cab3
--- /dev/null
+++ b/merchant-terminal/build.gradle
@@ -0,0 +1,76 @@
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+apply plugin: "androidx.navigation.safeargs.kotlin"
+
+android {
+ compileSdkVersion 29
+ buildToolsVersion "29.0.3"
+ defaultConfig {
+ applicationId "net.taler.merchantpos"
+ minSdkVersion 26
+ targetSdkVersion 29
+ versionCode 1
+ versionName "1.0"
+ testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+ }
+ buildTypes {
+ release {
+ minifyEnabled true
+ proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+ }
+ }
+
+ compileOptions {
+ sourceCompatibility = 1.8
+ targetCompatibility = 1.8
+ }
+
+ kotlinOptions {
+ jvmTarget = "1.8"
+ }
+
+ testOptions {
+ unitTests {
+ includeAndroidResources = true
+ }
+ }
+
+ lintOptions {
+ abortOnError true
+ ignoreWarnings false
+ }
+}
+
+dependencies {
+ implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+ implementation 'androidx.appcompat:appcompat:1.1.0'
+ implementation 'androidx.core:core-ktx:1.2.0'
+ implementation 'com.google.android.material:material:1.1.0'
+ implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+ implementation "androidx.recyclerview:recyclerview:1.1.0"
+ implementation "androidx.recyclerview:recyclerview-selection:1.1.0-rc01"
+
+ // Navigation
+ implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
+ implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
+
+ // ViewModel and LiveData
+ def lifecycle_version = "2.2.0"
+ implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
+ implementation "androidx.lifecycle:lifecycle-common-java8:$lifecycle_version"
+
+ // HTTP Requests
+ implementation 'com.android.volley:volley:1.1.1'
+
+ // QR codes
+ implementation 'com.google.zxing:core:3.4.0'
+
+ implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.0.0"
+
+ // JSON parsing and serialization
+ implementation "com.fasterxml.jackson.module:jackson-module-kotlin:2.10.2"
+
+ testImplementation 'androidx.test.ext:junit:1.1.1'
+ testImplementation 'org.robolectric:robolectric:4.3.1'
+}
diff --git a/merchant-terminal/proguard-rules.pro b/merchant-terminal/proguard-rules.pro
new file mode 100644
index 0000000..f1b4245
--- /dev/null
+++ b/merchant-terminal/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/merchant-terminal/src/main/AndroidManifest.xml b/merchant-terminal/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..f52995f
--- /dev/null
+++ b/merchant-terminal/src/main/AndroidManifest.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:tools="http://schemas.android.com/tools"
+ package="net.taler.merchantpos">
+
+ <uses-permission android:name="android.permission.NFC" />
+ <uses-permission android:name="android.permission.INTERNET" />
+
+ <uses-feature
+ android:name="android.hardware.nfc"
+ android:required="false" />
+
+ <uses-feature
+ android:name="android.hardware.telephony"
+ android:required="false" />
+
+ <application
+ android:allowBackup="true"
+ android:fullBackupContent="@xml/backup_descriptor"
+ android:icon="@mipmap/ic_taler_logo"
+ android:label="@string/app_name"
+ android:roundIcon="@mipmap/ic_taler_logo_round"
+ android:supportsRtl="true"
+ android:theme="@style/AppTheme"
+ tools:ignore="GoogleAppIndexingWarning">
+ <activity
+ android:name=".MainActivity"
+ android:label="@string/app_name"
+ android:screenOrientation="landscape"
+ android:theme="@style/AppTheme.NoActionBar"
+ tools:ignore="LockedOrientationActivity">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+
+ <category android:name="android.intent.category.LAUNCHER" />
+ </intent-filter>
+ </activity>
+ </application>
+
+</manifest>
diff --git a/merchant-terminal/src/main/ic_taler_logo-web.png b/merchant-terminal/src/main/ic_taler_logo-web.png
new file mode 100644
index 0000000..e3b8075
--- /dev/null
+++ b/merchant-terminal/src/main/ic_taler_logo-web.png
Binary files differ
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/Amount.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/Amount.kt
new file mode 100644
index 0000000..17ddd61
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/Amount.kt
@@ -0,0 +1,48 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos
+
+import org.json.JSONObject
+
+data class Amount(val currency: String, val amount: String) {
+ @Suppress("unused")
+ fun isZero(): Boolean {
+ return amount.toDouble() == 0.0
+ }
+
+ companion object {
+ private const val FRACTIONAL_BASE = 1e8
+
+ @Suppress("unused")
+ fun fromJson(jsonAmount: JSONObject): Amount {
+ val amountCurrency = jsonAmount.getString("currency")
+ val amountValue = jsonAmount.getString("value")
+ val amountFraction = jsonAmount.getString("fraction")
+ val amountIntValue = Integer.parseInt(amountValue)
+ val amountIntFraction = Integer.parseInt(amountFraction)
+ return Amount(
+ amountCurrency,
+ (amountIntValue + amountIntFraction / FRACTIONAL_BASE).toString()
+ )
+ }
+
+ fun fromString(strAmount: String): Amount {
+ val components = strAmount.split(":")
+ return Amount(components[0], components[1])
+ }
+ }
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/MainActivity.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/MainActivity.kt
new file mode 100644
index 0000000..0c6bdfa
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/MainActivity.kt
@@ -0,0 +1,123 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos
+
+import android.content.Intent
+import android.content.Intent.ACTION_MAIN
+import android.content.Intent.CATEGORY_HOME
+import android.content.Intent.FLAG_ACTIVITY_NEW_TASK
+import android.os.Bundle
+import android.os.Handler
+import android.view.MenuItem
+import android.widget.Toast
+import android.widget.Toast.LENGTH_SHORT
+import androidx.activity.viewModels
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.GravityCompat.START
+import androidx.lifecycle.Observer
+import androidx.navigation.NavController
+import androidx.navigation.fragment.NavHostFragment
+import androidx.navigation.ui.AppBarConfiguration
+import androidx.navigation.ui.setupWithNavController
+import com.google.android.material.navigation.NavigationView.OnNavigationItemSelectedListener
+import kotlinx.android.synthetic.main.activity_main.*
+import kotlinx.android.synthetic.main.app_bar_main.*
+
+class MainActivity : AppCompatActivity(), OnNavigationItemSelectedListener {
+
+ private val model: MainViewModel by viewModels()
+ private val nfcManager = NfcManager()
+
+ private lateinit var nav: NavController
+
+ private var reallyExit = false
+
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+ setContentView(R.layout.activity_main)
+
+ model.paymentManager.payment.observe(this, Observer { payment ->
+ payment?.talerPayUri?.let {
+ nfcManager.setTagString(it)
+ }
+ })
+
+ val navHostFragment =
+ supportFragmentManager.findFragmentById(R.id.navHostFragment) as NavHostFragment
+ nav = navHostFragment.navController
+
+ nav_view.setupWithNavController(nav)
+ nav_view.setNavigationItemSelectedListener(this)
+
+ setSupportActionBar(toolbar)
+ val appBarConfiguration = AppBarConfiguration(nav.graph, drawer_layout)
+ toolbar.setupWithNavController(nav, appBarConfiguration)
+ }
+
+ override fun onStart() {
+ super.onStart()
+ if (!model.configManager.config.isValid() && nav.currentDestination?.id != R.id.nav_settings) {
+ nav.navigate(R.id.action_global_merchantSettings)
+ } else if (model.configManager.merchantConfig == null && nav.currentDestination?.id != R.id.configFetcher) {
+ nav.navigate(R.id.action_global_configFetcher)
+ }
+ }
+
+ public override fun onResume() {
+ super.onResume()
+ // TODO should we only read tags when a payment is to be made?
+ NfcManager.start(this, nfcManager)
+ }
+
+ public override fun onPause() {
+ super.onPause()
+ NfcManager.stop(this)
+ }
+
+ override fun onNavigationItemSelected(item: MenuItem): Boolean {
+ when (item.itemId) {
+ R.id.nav_order -> nav.navigate(R.id.action_global_order)
+ R.id.nav_history -> nav.navigate(R.id.action_global_merchantHistory)
+ R.id.nav_settings -> nav.navigate(R.id.action_global_merchantSettings)
+ }
+ drawer_layout.closeDrawer(START)
+ return true
+ }
+
+ override fun onBackPressed() {
+ val currentDestination = nav.currentDestination?.id
+ if (drawer_layout.isDrawerOpen(START)) {
+ drawer_layout.closeDrawer(START)
+ } else if (currentDestination == R.id.nav_settings && !model.configManager.config.isValid()) {
+ // we are in the configuration screen and need a config to continue
+ val intent = Intent(ACTION_MAIN).apply {
+ addCategory(CATEGORY_HOME)
+ flags = FLAG_ACTIVITY_NEW_TASK
+ }
+ startActivity(intent)
+ } else if (currentDestination == R.id.nav_order) {
+ if (reallyExit) super.onBackPressed()
+ else {
+ // this closes the app and causes orders to be lost, so let's confirm first
+ reallyExit = true
+ Toast.makeText(this, R.string.toast_back_to_exit, LENGTH_SHORT).show()
+ Handler().postDelayed({ reallyExit = false }, 3000)
+ }
+ } else super.onBackPressed()
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/MainViewModel.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/MainViewModel.kt
new file mode 100644
index 0000000..3fe472d
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/MainViewModel.kt
@@ -0,0 +1,51 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos
+
+import android.app.Application
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.viewModelScope
+import com.android.volley.toolbox.Volley
+import com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.kotlin.KotlinModule
+import net.taler.merchantpos.config.ConfigManager
+import net.taler.merchantpos.history.HistoryManager
+import net.taler.merchantpos.history.RefundManager
+import net.taler.merchantpos.order.OrderManager
+import net.taler.merchantpos.payment.PaymentManager
+
+class MainViewModel(app: Application) : AndroidViewModel(app) {
+
+ private val mapper = ObjectMapper()
+ .registerModule(KotlinModule())
+ .configure(FAIL_ON_UNKNOWN_PROPERTIES, false)
+ private val queue = Volley.newRequestQueue(app)
+
+ val orderManager = OrderManager(app, mapper)
+ val configManager = ConfigManager(app, viewModelScope, mapper, queue).apply {
+ addConfigurationReceiver(orderManager)
+ }
+ val paymentManager = PaymentManager(configManager, queue, mapper)
+ val historyManager = HistoryManager(configManager, queue, mapper)
+ val refundManager = RefundManager(configManager, queue)
+
+ override fun onCleared() {
+ queue.cancelAll { !it.isCanceled }
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/NfcManager.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/NfcManager.kt
new file mode 100644
index 0000000..09c1470
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/NfcManager.kt
@@ -0,0 +1,233 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos
+
+import android.app.Activity
+import android.content.Context
+import android.nfc.NfcAdapter
+import android.nfc.NfcAdapter.FLAG_READER_NFC_A
+import android.nfc.NfcAdapter.FLAG_READER_SKIP_NDEF_CHECK
+import android.nfc.Tag
+import android.nfc.tech.IsoDep
+import android.util.Log
+import net.taler.merchantpos.Utils.hexStringToByteArray
+import org.json.JSONObject
+import java.io.ByteArrayOutputStream
+import java.net.URL
+import javax.net.ssl.HttpsURLConnection
+
+@Suppress("unused")
+private const val TALER_AID = "A0000002471001"
+
+class NfcManager : NfcAdapter.ReaderCallback {
+
+ companion object {
+ const val TAG = "taler-merchant"
+
+ /**
+ * Returns true if NFC is supported and false otherwise.
+ */
+ fun hasNfc(context: Context): Boolean {
+ return getNfcAdapter(context) != null
+ }
+
+ /**
+ * Enables NFC reader mode. Don't forget to call [stop] afterwards.
+ */
+ fun start(activity: Activity, nfcManager: NfcManager) {
+ getNfcAdapter(activity)?.enableReaderMode(activity, nfcManager, nfcManager.flags, null)
+ }
+
+ /**
+ * Disables NFC reader mode. Call after [start].
+ */
+ fun stop(activity: Activity) {
+ getNfcAdapter(activity)?.disableReaderMode(activity)
+ }
+
+ private fun getNfcAdapter(context: Context): NfcAdapter? {
+ return NfcAdapter.getDefaultAdapter(context)
+ }
+ }
+
+ private val flags = FLAG_READER_NFC_A or FLAG_READER_SKIP_NDEF_CHECK
+
+ private var tagString: String? = null
+ private var currentTag: IsoDep? = null
+
+ fun setTagString(tagString: String) {
+ this.tagString = tagString
+ }
+
+ override fun onTagDiscovered(tag: Tag?) {
+
+ Log.v(TAG, "tag discovered")
+
+ val isoDep = IsoDep.get(tag)
+ isoDep.connect()
+
+ currentTag = isoDep
+
+ isoDep.transceive(apduSelectFile())
+
+ val tagString: String? = tagString
+ if (tagString != null) {
+ isoDep.transceive(apduPutTalerData(1, tagString.toByteArray()))
+ }
+
+ // FIXME: use better pattern for sleeps in between requests
+ // -> start with fast polling, poll more slowly if no requests are coming
+
+ while (true) {
+ try {
+ val reqFrame = isoDep.transceive(apduGetData())
+ if (reqFrame.size < 2) {
+ Log.v(TAG, "request frame too small")
+ break
+ }
+ val req = ByteArray(reqFrame.size - 2)
+ if (req.isEmpty()) {
+ continue
+ }
+ reqFrame.copyInto(req, 0, 0, reqFrame.size - 2)
+ val jsonReq = JSONObject(req.toString(Charsets.UTF_8))
+ val reqId = jsonReq.getInt("id")
+ Log.v(TAG, "got request $jsonReq")
+ val jsonInnerReq = jsonReq.getJSONObject("request")
+ val method = jsonInnerReq.getString("method")
+ val urlStr = jsonInnerReq.getString("url")
+ Log.v(TAG, "url '$urlStr'")
+ Log.v(TAG, "method '$method'")
+ val url = URL(urlStr)
+ val conn: HttpsURLConnection = url.openConnection() as HttpsURLConnection
+ conn.setRequestProperty("Accept", "application/json")
+ conn.connectTimeout = 5000
+ conn.doInput = true
+ when (method) {
+ "get" -> {
+ conn.requestMethod = "GET"
+ }
+ "postJson" -> {
+ conn.requestMethod = "POST"
+ conn.doOutput = true
+ conn.setRequestProperty("Content-Type", "application/json; utf-8")
+ val body = jsonInnerReq.getString("body")
+ conn.outputStream.write(body.toByteArray(Charsets.UTF_8))
+ }
+ else -> {
+ throw Exception("method not supported")
+ }
+ }
+ Log.v(TAG, "connecting")
+ conn.connect()
+ Log.v(TAG, "connected")
+
+ val statusCode = conn.responseCode
+ val tunnelResp = JSONObject()
+ tunnelResp.put("id", reqId)
+ tunnelResp.put("status", conn.responseCode)
+
+ if (statusCode == 200) {
+ val stream = conn.inputStream
+ val httpResp = stream.buffered().readBytes()
+ tunnelResp.put("responseJson", JSONObject(httpResp.toString(Charsets.UTF_8)))
+ }
+
+ Log.v(TAG, "sending: $tunnelResp")
+
+ isoDep.transceive(apduPutTalerData(2, tunnelResp.toString().toByteArray()))
+ } catch (e: Exception) {
+ Log.v(TAG, "exception during NFC loop: $e")
+ break
+ }
+ }
+
+ isoDep.close()
+ }
+
+ private fun writeApduLength(stream: ByteArrayOutputStream, size: Int) {
+ when {
+ size == 0 -> {
+ // No size field needed!
+ }
+ size <= 255 -> // One byte size field
+ stream.write(size)
+ size <= 65535 -> {
+ stream.write(0)
+ // FIXME: is this supposed to be little or big endian?
+ stream.write(size and 0xFF)
+ stream.write((size ushr 8) and 0xFF)
+ }
+ else -> throw Error("payload too big")
+ }
+ }
+
+ private fun apduSelectFile(): ByteArray {
+ return hexStringToByteArray("00A4040007A0000002471001")
+ }
+
+ private fun apduPutData(payload: ByteArray): ByteArray {
+ val stream = ByteArrayOutputStream()
+
+ // Class
+ stream.write(0x00)
+
+ // Instruction 0xDA = put data
+ stream.write(0xDA)
+
+ // Instruction parameters
+ // (proprietary encoding)
+ stream.write(0x01)
+ stream.write(0x00)
+
+ writeApduLength(stream, payload.size)
+
+ stream.write(payload)
+
+ return stream.toByteArray()
+ }
+
+ private fun apduPutTalerData(talerInst: Int, payload: ByteArray): ByteArray {
+ val realPayload = ByteArrayOutputStream()
+ realPayload.write(talerInst)
+ realPayload.write(payload)
+ return apduPutData(realPayload.toByteArray())
+ }
+
+ private fun apduGetData(): ByteArray {
+ val stream = ByteArrayOutputStream()
+
+ // Class
+ stream.write(0x00)
+
+ // Instruction 0xCA = get data
+ stream.write(0xCA)
+
+ // Instruction parameters
+ // (proprietary encoding)
+ stream.write(0x01)
+ stream.write(0x00)
+
+ // Max expected response size, two
+ // zero bytes denotes 65536
+ stream.write(0x0)
+ stream.write(0x0)
+
+ return stream.toByteArray()
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/QrCodeManager.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/QrCodeManager.kt
new file mode 100644
index 0000000..595e7ac
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/QrCodeManager.kt
@@ -0,0 +1,42 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos
+
+import android.graphics.Bitmap
+import android.graphics.Bitmap.Config.RGB_565
+import android.graphics.Color.BLACK
+import android.graphics.Color.WHITE
+import com.google.zxing.BarcodeFormat.QR_CODE
+import com.google.zxing.qrcode.QRCodeWriter
+
+object QrCodeManager {
+
+ fun makeQrCode(text: String, size: Int = 256): Bitmap {
+ val qrCodeWriter = QRCodeWriter()
+ val bitMatrix = qrCodeWriter.encode(text, QR_CODE, size, size)
+ val height = bitMatrix.height
+ val width = bitMatrix.width
+ val bmp = Bitmap.createBitmap(width, height, RGB_565)
+ for (x in 0 until width) {
+ for (y in 0 until height) {
+ bmp.setPixel(x, y, if (bitMatrix.get(x, y)) BLACK else WHITE)
+ }
+ }
+ return bmp
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/Utils.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/Utils.kt
new file mode 100644
index 0000000..a0c30d6
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/Utils.kt
@@ -0,0 +1,155 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos
+
+import android.content.Context
+import android.text.format.DateUtils.DAY_IN_MILLIS
+import android.text.format.DateUtils.FORMAT_ABBREV_MONTH
+import android.text.format.DateUtils.FORMAT_ABBREV_RELATIVE
+import android.text.format.DateUtils.FORMAT_NO_YEAR
+import android.text.format.DateUtils.FORMAT_SHOW_DATE
+import android.text.format.DateUtils.FORMAT_SHOW_TIME
+import android.text.format.DateUtils.MINUTE_IN_MILLIS
+import android.text.format.DateUtils.formatDateTime
+import android.text.format.DateUtils.getRelativeTimeSpanString
+import android.view.View
+import android.view.View.INVISIBLE
+import android.view.View.VISIBLE
+import androidx.annotation.StringRes
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MediatorLiveData
+import androidx.lifecycle.Observer
+import androidx.navigation.NavController
+import androidx.navigation.NavDirections
+import androidx.navigation.fragment.findNavController
+import com.google.android.material.snackbar.BaseTransientBottomBar.ANIMATION_MODE_FADE
+import com.google.android.material.snackbar.BaseTransientBottomBar.Duration
+import com.google.android.material.snackbar.Snackbar.make
+
+object Utils {
+
+ private const val HEX_CHARS = "0123456789ABCDEF"
+
+ fun hexStringToByteArray(data: String): ByteArray {
+ val result = ByteArray(data.length / 2)
+
+ for (i in data.indices step 2) {
+ val firstIndex = HEX_CHARS.indexOf(data[i])
+ val secondIndex = HEX_CHARS.indexOf(data[i + 1])
+
+ val octet = firstIndex.shl(4).or(secondIndex)
+ result[i.shr(1)] = octet.toByte()
+ }
+ return result
+ }
+
+
+ private val HEX_CHARS_ARRAY = HEX_CHARS.toCharArray()
+
+ @Suppress("unused")
+ fun toHex(byteArray: ByteArray): String {
+ val result = StringBuffer()
+
+ byteArray.forEach {
+ val octet = it.toInt()
+ val firstIndex = (octet and 0xF0).ushr(4)
+ val secondIndex = octet and 0x0F
+ result.append(HEX_CHARS_ARRAY[firstIndex])
+ result.append(HEX_CHARS_ARRAY[secondIndex])
+ }
+ return result.toString()
+ }
+
+}
+
+fun View.fadeIn(endAction: () -> Unit = {}) {
+ if (visibility == VISIBLE) return
+ alpha = 0f
+ visibility = VISIBLE
+ animate().alpha(1f).withEndAction {
+ if (context != null) endAction.invoke()
+ }.start()
+}
+
+fun View.fadeOut(endAction: () -> Unit = {}) {
+ if (visibility == INVISIBLE) return
+ animate().alpha(0f).withEndAction {
+ if (context == null) return@withEndAction
+ visibility = INVISIBLE
+ alpha = 1f
+ endAction.invoke()
+ }.start()
+}
+
+fun topSnackbar(view: View, text: CharSequence, @Duration duration: Int) {
+ make(view, text, duration)
+ .setAnimationMode(ANIMATION_MODE_FADE)
+ .setAnchorView(R.id.navHostFragment)
+ .show()
+}
+
+fun topSnackbar(view: View, @StringRes resId: Int, @Duration duration: Int) {
+ topSnackbar(view, view.resources.getText(resId), duration)
+}
+
+fun NavDirections.navigate(nav: NavController) = nav.navigate(this)
+
+fun Fragment.navigate(directions: NavDirections) = findNavController().navigate(directions)
+
+fun Long.toRelativeTime(context: Context): CharSequence {
+ val now = System.currentTimeMillis()
+ return if (now - this > DAY_IN_MILLIS * 2) {
+ val flags = FORMAT_SHOW_TIME or FORMAT_SHOW_DATE or FORMAT_ABBREV_MONTH or FORMAT_NO_YEAR
+ formatDateTime(context, this, flags)
+ } else getRelativeTimeSpanString(this, now, MINUTE_IN_MILLIS, FORMAT_ABBREV_RELATIVE)
+}
+
+class CombinedLiveData<T, K, S>(
+ source1: LiveData<T>,
+ source2: LiveData<K>,
+ private val combine: (data1: T?, data2: K?) -> S
+) : MediatorLiveData<S>() {
+
+ private var data1: T? = null
+ private var data2: K? = null
+
+ init {
+ super.addSource(source1) { t ->
+ data1 = t
+ value = combine(data1, data2)
+ }
+ super.addSource(source2) { k ->
+ data2 = k
+ value = combine(data1, data2)
+ }
+ }
+
+ override fun <S : Any?> addSource(source: LiveData<S>, onChanged: Observer<in S>) {
+ throw UnsupportedOperationException()
+ }
+
+ override fun <T : Any?> removeSource(toRemote: LiveData<T>) {
+ throw UnsupportedOperationException()
+ }
+}
+
+/**
+ * Use this with 'when' expressions when you need it to handle all possibilities/branches.
+ */
+val <T> T.exhaustive: T
+ get() = this
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/config/ConfigFetcherFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/config/ConfigFetcherFragment.kt
new file mode 100644
index 0000000..c370e33
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/config/ConfigFetcherFragment.kt
@@ -0,0 +1,66 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.config
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.navigation.fragment.findNavController
+import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.snackbar.Snackbar.LENGTH_SHORT
+import net.taler.merchantpos.MainViewModel
+import net.taler.merchantpos.R
+import net.taler.merchantpos.config.ConfigFetcherFragmentDirections.Companion.actionConfigFetcherToMerchantSettings
+import net.taler.merchantpos.config.ConfigFetcherFragmentDirections.Companion.actionConfigFetcherToOrder
+import net.taler.merchantpos.navigate
+
+class ConfigFetcherFragment : Fragment() {
+
+ private val model: MainViewModel by activityViewModels()
+ private val configManager by lazy { model.configManager }
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_config_fetcher, container, false)
+ }
+
+ override fun onActivityCreated(savedInstanceState: Bundle?) {
+ super.onActivityCreated(savedInstanceState)
+ configManager.fetchConfig(configManager.config, false)
+ configManager.configUpdateResult.observe(viewLifecycleOwner, Observer { result ->
+ when (result) {
+ null -> return@Observer
+ is ConfigUpdateResult.Error -> onNetworkError(result.msg)
+ is ConfigUpdateResult.Success -> {
+ actionConfigFetcherToOrder().navigate(findNavController())
+ }
+ }
+ })
+ }
+
+ private fun onNetworkError(msg: String) {
+ Snackbar.make(view!!, msg, LENGTH_SHORT).show()
+ actionConfigFetcherToMerchantSettings().navigate(findNavController())
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/config/ConfigManager.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/config/ConfigManager.kt
new file mode 100644
index 0000000..edb8059
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/config/ConfigManager.kt
@@ -0,0 +1,181 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.config
+
+import android.content.Context
+import android.content.Context.MODE_PRIVATE
+import android.util.Base64.NO_WRAP
+import android.util.Base64.encodeToString
+import android.util.Log
+import androidx.annotation.UiThread
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import com.android.volley.Request.Method.GET
+import com.android.volley.RequestQueue
+import com.android.volley.Response.ErrorListener
+import com.android.volley.Response.Listener
+import com.android.volley.VolleyError
+import com.android.volley.toolbox.JsonObjectRequest
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import net.taler.merchantpos.R
+import org.json.JSONObject
+
+private const val SETTINGS_NAME = "taler-merchant-terminal"
+
+private const val SETTINGS_CONFIG_URL = "configUrl"
+private const val SETTINGS_USERNAME = "username"
+private const val SETTINGS_PASSWORD = "password"
+
+internal const val CONFIG_URL_DEMO = "https://docs.taler.net/_static/sample-pos-config.json"
+internal const val CONFIG_USERNAME_DEMO = ""
+internal const val CONFIG_PASSWORD_DEMO = ""
+
+private val TAG = ConfigManager::class.java.simpleName
+
+interface ConfigurationReceiver {
+ /**
+ * Returns null if the configuration was valid, or a error string for user display otherwise.
+ */
+ suspend fun onConfigurationReceived(json: JSONObject, currency: String): String?
+}
+
+class ConfigManager(
+ private val context: Context,
+ private val scope: CoroutineScope,
+ private val mapper: ObjectMapper,
+ private val queue: RequestQueue
+) {
+
+ private val prefs = context.getSharedPreferences(SETTINGS_NAME, MODE_PRIVATE)
+ private val configurationReceivers = ArrayList<ConfigurationReceiver>()
+
+ var config = Config(
+ configUrl = prefs.getString(SETTINGS_CONFIG_URL, CONFIG_URL_DEMO)!!,
+ username = prefs.getString(SETTINGS_USERNAME, CONFIG_USERNAME_DEMO)!!,
+ password = prefs.getString(SETTINGS_PASSWORD, CONFIG_PASSWORD_DEMO)!!
+ )
+ var merchantConfig: MerchantConfig? = null
+ private set
+
+ private val mConfigUpdateResult = MutableLiveData<ConfigUpdateResult>()
+ val configUpdateResult: LiveData<ConfigUpdateResult> = mConfigUpdateResult
+
+ fun addConfigurationReceiver(receiver: ConfigurationReceiver) {
+ configurationReceivers.add(receiver)
+ }
+
+ @UiThread
+ fun fetchConfig(config: Config, save: Boolean, savePassword: Boolean = false) {
+ mConfigUpdateResult.value = null
+ val configToSave = if (save) {
+ if (savePassword) config else config.copy(password = "")
+ } else null
+
+ val stringRequest = object : JsonObjectRequest(GET, config.configUrl, null,
+ Listener { onConfigReceived(it, configToSave) },
+ ErrorListener { onNetworkError(it) }
+ ) {
+ // send basic auth header
+ override fun getHeaders(): MutableMap<String, String> {
+ val credentials = "${config.username}:${config.password}"
+ val auth = ("Basic ${encodeToString(credentials.toByteArray(), NO_WRAP)}")
+ return mutableMapOf("Authorization" to auth)
+ }
+ }
+ queue.add(stringRequest)
+ }
+
+ @UiThread
+ private fun onConfigReceived(json: JSONObject, config: Config?) {
+ val merchantConfig: MerchantConfig = try {
+ mapper.readValue(json.getString("config"))
+ } catch (e: Exception) {
+ Log.e(TAG, "Error parsing merchant config", e)
+ val msg = context.getString(R.string.config_error_malformed)
+ mConfigUpdateResult.value = ConfigUpdateResult.Error(msg)
+ return
+ }
+
+ val params = mapOf("instance" to merchantConfig.instance)
+ val req = MerchantRequest(GET, merchantConfig, "config", params, null,
+ Listener { onMerchantConfigReceived(config, json, merchantConfig, it) },
+ ErrorListener { onNetworkError(it) }
+ )
+ queue.add(req)
+ }
+
+ private fun onMerchantConfigReceived(
+ newConfig: Config?,
+ configJson: JSONObject,
+ merchantConfig: MerchantConfig,
+ json: JSONObject
+ ) = scope.launch(Dispatchers.Default) {
+ val currency = json.getString("currency")
+
+ for (receiver in configurationReceivers) {
+ val result = try {
+ receiver.onConfigurationReceived(configJson, currency)
+ } catch (e: Exception) {
+ Log.e(TAG, "Error handling configuration by ${receiver::class.java.simpleName}", e)
+ context.getString(R.string.config_error_unknown)
+ }
+ if (result != null) { // error
+ mConfigUpdateResult.postValue(ConfigUpdateResult.Error(result))
+ return@launch
+ }
+ }
+ newConfig?.let {
+ config = it
+ saveConfig(it)
+ }
+ this@ConfigManager.merchantConfig = merchantConfig.copy(currency = currency)
+ mConfigUpdateResult.postValue(ConfigUpdateResult.Success(currency))
+ }
+
+ fun forgetPassword() {
+ config = config.copy(password = "")
+ saveConfig(config)
+ merchantConfig = null
+ }
+
+ private fun saveConfig(config: Config) {
+ prefs.edit()
+ .putString(SETTINGS_CONFIG_URL, config.configUrl)
+ .putString(SETTINGS_USERNAME, config.username)
+ .putString(SETTINGS_PASSWORD, config.password)
+ .apply()
+ }
+
+ @UiThread
+ private fun onNetworkError(it: VolleyError?) {
+ val msg = context.getString(
+ if (it?.networkResponse?.statusCode == 401) R.string.config_auth_error
+ else R.string.config_error_network
+ )
+ mConfigUpdateResult.value = ConfigUpdateResult.Error(msg)
+ }
+
+}
+
+sealed class ConfigUpdateResult {
+ data class Error(val msg: String) : ConfigUpdateResult()
+ data class Success(val currency: String) : ConfigUpdateResult()
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/config/MerchantConfig.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/config/MerchantConfig.kt
new file mode 100644
index 0000000..2050e28
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/config/MerchantConfig.kt
@@ -0,0 +1,47 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.config
+
+import android.net.Uri
+import com.fasterxml.jackson.annotation.JsonProperty
+
+data class Config(
+ val configUrl: String,
+ val username: String,
+ val password: String
+) {
+ fun isValid() = !configUrl.isBlank()
+ fun hasPassword() = !password.isBlank()
+}
+
+data class MerchantConfig(
+ @JsonProperty("base_url")
+ val baseUrl: String,
+ val instance: String,
+ @JsonProperty("api_key")
+ val apiKey: String,
+ val currency: String?
+) {
+ fun urlFor(endpoint: String, params: Map<String, String>?): String {
+ val uriBuilder = Uri.parse(baseUrl).buildUpon()
+ uriBuilder.appendPath(endpoint)
+ params?.forEach {
+ uriBuilder.appendQueryParameter(it.key, it.value)
+ }
+ return uriBuilder.toString()
+ }
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/config/MerchantConfigFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/config/MerchantConfigFragment.kt
new file mode 100644
index 0000000..aad1c93
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/config/MerchantConfigFragment.kt
@@ -0,0 +1,165 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.config
+
+import android.net.Uri
+import android.os.Bundle
+import android.text.method.LinkMovementMethod
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.GONE
+import android.view.View.INVISIBLE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.navigation.fragment.findNavController
+import com.google.android.material.snackbar.BaseTransientBottomBar.LENGTH_LONG
+import com.google.android.material.snackbar.Snackbar
+import kotlinx.android.synthetic.main.fragment_merchant_config.*
+import net.taler.merchantpos.MainViewModel
+import net.taler.merchantpos.R
+import net.taler.merchantpos.config.MerchantConfigFragmentDirections.Companion.actionSettingsToOrder
+import net.taler.merchantpos.navigate
+import net.taler.merchantpos.topSnackbar
+
+/**
+ * Fragment that displays merchant settings.
+ */
+class MerchantConfigFragment : Fragment() {
+
+ private val model: MainViewModel by activityViewModels()
+ private val configManager by lazy { model.configManager }
+
+ override fun onCreateView(
+ inflater: LayoutInflater,
+ container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_merchant_config, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ configUrlView.editText!!.setOnFocusChangeListener { _, hasFocus ->
+ if (!hasFocus) checkForUrlCredentials()
+ }
+ okButton.setOnClickListener {
+ checkForUrlCredentials()
+ val inputUrl = configUrlView.editText!!.text
+ val url = if (inputUrl.startsWith("http")) {
+ inputUrl.toString()
+ } else {
+ "https://$inputUrl".also { configUrlView.editText!!.setText(it) }
+ }
+ progressBar.visibility = VISIBLE
+ okButton.visibility = INVISIBLE
+ val config = Config(
+ configUrl = url,
+ username = usernameView.editText!!.text.toString(),
+ password = passwordView.editText!!.text.toString()
+ )
+ configManager.fetchConfig(config, true, savePasswordCheckBox.isChecked)
+ configManager.configUpdateResult.observe(viewLifecycleOwner, Observer { result ->
+ if (onConfigUpdate(result)) {
+ configManager.configUpdateResult.removeObservers(viewLifecycleOwner)
+ }
+ })
+ }
+ forgetPasswordButton.setOnClickListener {
+ configManager.forgetPassword()
+ passwordView.editText!!.text = null
+ forgetPasswordButton.visibility = GONE
+ }
+ configDocsView.movementMethod = LinkMovementMethod.getInstance()
+ updateView(savedInstanceState == null)
+ }
+
+ override fun onStart() {
+ super.onStart()
+ // focus password if this is the only empty field
+ if (passwordView.editText!!.text.isBlank()
+ && !configUrlView.editText!!.text.isBlank()
+ && !usernameView.editText!!.text.isBlank()
+ ) {
+ passwordView.requestFocus()
+ }
+ }
+
+ private fun updateView(isInitialization: Boolean = false) {
+ val config = configManager.config
+ configUrlView.editText!!.setText(
+ if (isInitialization && config.configUrl.isBlank()) CONFIG_URL_DEMO
+ else config.configUrl
+ )
+ usernameView.editText!!.setText(
+ if (isInitialization && config.username.isBlank()) CONFIG_USERNAME_DEMO
+ else config.username
+ )
+ passwordView.editText!!.setText(
+ if (isInitialization && config.password.isBlank()) CONFIG_PASSWORD_DEMO
+ else config.password
+ )
+ forgetPasswordButton.visibility = if (config.hasPassword()) VISIBLE else GONE
+ }
+
+ private fun checkForUrlCredentials() {
+ val text = configUrlView.editText!!.text.toString()
+ Uri.parse(text)?.userInfo?.let { userInfo ->
+ if (userInfo.contains(':')) {
+ val (user, pass) = userInfo.split(':')
+ val strippedUrl = text.replace("${userInfo}@", "")
+ configUrlView.editText!!.setText(strippedUrl)
+ usernameView.editText!!.setText(user)
+ passwordView.editText!!.setText(pass)
+ }
+ }
+ }
+
+ /**
+ * Processes updated config and returns true, if observer can be removed.
+ */
+ private fun onConfigUpdate(result: ConfigUpdateResult?) = when (result) {
+ null -> false
+ is ConfigUpdateResult.Error -> {
+ onError(result.msg)
+ true
+ }
+ is ConfigUpdateResult.Success -> {
+ onConfigReceived(result.currency)
+ true
+ }
+ }
+
+ private fun onConfigReceived(currency: String) {
+ onResultReceived()
+ updateView()
+ topSnackbar(view!!, getString(R.string.config_changed, currency), LENGTH_LONG)
+ actionSettingsToOrder().navigate(findNavController())
+ }
+
+ private fun onError(msg: String) {
+ onResultReceived()
+ Snackbar.make(view!!, msg, LENGTH_LONG).show()
+ }
+
+ private fun onResultReceived() {
+ progressBar.visibility = INVISIBLE
+ okButton.visibility = VISIBLE
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/config/MerchantRequest.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/config/MerchantRequest.kt
new file mode 100644
index 0000000..8d95378
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/config/MerchantRequest.kt
@@ -0,0 +1,41 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.config
+
+
+import android.util.ArrayMap
+import com.android.volley.Response
+import com.android.volley.toolbox.JsonObjectRequest
+import org.json.JSONObject
+
+class MerchantRequest(
+ method: Int,
+ private val merchantConfig: MerchantConfig,
+ endpoint: String,
+ params: Map<String, String>?,
+ jsonRequest: JSONObject?,
+ listener: Response.Listener<JSONObject>,
+ errorListener: Response.ErrorListener
+) :
+ JsonObjectRequest(method, merchantConfig.urlFor(endpoint, params), jsonRequest, listener, errorListener) {
+
+ override fun getHeaders(): MutableMap<String, String> {
+ val headerMap = ArrayMap<String, String>()
+ headerMap["Authorization"] = "ApiKey " + merchantConfig.apiKey
+ return headerMap
+ }
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/history/HistoryManager.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/history/HistoryManager.kt
new file mode 100644
index 0000000..594e7cc
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/history/HistoryManager.kt
@@ -0,0 +1,106 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.history
+
+import android.util.Log
+import androidx.annotation.UiThread
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import com.android.volley.Request.Method.GET
+import com.android.volley.Request.Method.POST
+import com.android.volley.RequestQueue
+import com.android.volley.Response.ErrorListener
+import com.android.volley.Response.Listener
+import com.fasterxml.jackson.annotation.JsonIgnore
+import com.fasterxml.jackson.annotation.JsonInclude
+import com.fasterxml.jackson.annotation.JsonInclude.Include.NON_EMPTY
+import com.fasterxml.jackson.annotation.JsonProperty
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import net.taler.merchantpos.Amount
+import net.taler.merchantpos.config.ConfigManager
+import net.taler.merchantpos.config.MerchantRequest
+import org.json.JSONObject
+
+@JsonInclude(NON_EMPTY)
+class Timestamp(
+ @JsonProperty("t_ms")
+ val ms: Long
+)
+
+data class HistoryItem(
+ @JsonProperty("order_id")
+ val orderId: String,
+ @JsonProperty("amount")
+ val amountStr: String,
+ val summary: String,
+ val timestamp: Timestamp
+) {
+ @get:JsonIgnore
+ val amount: Amount by lazy { Amount.fromString(amountStr) }
+
+ @get:JsonIgnore
+ val time = timestamp.ms
+}
+
+sealed class HistoryResult {
+ object Error : HistoryResult()
+ class Success(val items: List<HistoryItem>) : HistoryResult()
+}
+
+class HistoryManager(
+ private val configManager: ConfigManager,
+ private val queue: RequestQueue,
+ private val mapper: ObjectMapper
+) {
+
+ private val mIsLoading = MutableLiveData(false)
+ val isLoading: LiveData<Boolean> = mIsLoading
+
+ private val mItems = MutableLiveData<HistoryResult>()
+ val items: LiveData<HistoryResult> = mItems
+
+ @UiThread
+ internal fun fetchHistory() {
+ mIsLoading.value = true
+ val merchantConfig = configManager.merchantConfig!!
+ val params = mapOf("instance" to merchantConfig.instance)
+ val req = MerchantRequest(GET, merchantConfig, "history", params, null,
+ Listener { onHistoryResponse(it) },
+ ErrorListener { onHistoryError() })
+ queue.add(req)
+ }
+
+ @UiThread
+ private fun onHistoryResponse(body: JSONObject) {
+ mIsLoading.value = false
+ val items = arrayListOf<HistoryItem>()
+ val historyJson = body.getJSONArray("history")
+ for (i in 0 until historyJson.length()) {
+ val historyItem: HistoryItem = mapper.readValue(historyJson.getString(i))
+ items.add(historyItem)
+ }
+ mItems.value = HistoryResult.Success(items)
+ }
+
+ @UiThread
+ private fun onHistoryError() {
+ mIsLoading.value = false
+ mItems.value = HistoryResult.Error
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/history/MerchantHistoryFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/history/MerchantHistoryFragment.kt
new file mode 100644
index 0000000..0c53f71
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/history/MerchantHistoryFragment.kt
@@ -0,0 +1,160 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.history
+
+import android.annotation.SuppressLint
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageButton
+import android.widget.TextView
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.DividerItemDecoration.VERTICAL
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView.Adapter
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
+import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.snackbar.Snackbar.LENGTH_SHORT
+import kotlinx.android.synthetic.main.fragment_merchant_history.*
+import net.taler.merchantpos.MainViewModel
+import net.taler.merchantpos.R
+import net.taler.merchantpos.exhaustive
+import net.taler.merchantpos.history.HistoryItemAdapter.HistoryItemViewHolder
+import net.taler.merchantpos.history.MerchantHistoryFragmentDirections.Companion.actionGlobalMerchantSettings
+import net.taler.merchantpos.history.MerchantHistoryFragmentDirections.Companion.actionNavHistoryToRefundFragment
+import net.taler.merchantpos.navigate
+import net.taler.merchantpos.toRelativeTime
+import java.util.*
+
+private interface RefundClickListener {
+ fun onRefundClicked(item: HistoryItem)
+}
+
+/**
+ * Fragment to display the merchant's payment history, received from the backend.
+ */
+class MerchantHistoryFragment : Fragment(), RefundClickListener {
+
+ companion object {
+ const val TAG = "taler-merchant"
+ }
+
+ private val model: MainViewModel by activityViewModels()
+ private val historyManager by lazy { model.historyManager }
+ private val refundManager by lazy { model.refundManager }
+
+ private val historyListAdapter = HistoryItemAdapter(this)
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_merchant_history, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ list_history.apply {
+ layoutManager = LinearLayoutManager(requireContext())
+ addItemDecoration(DividerItemDecoration(context, VERTICAL))
+ adapter = historyListAdapter
+ }
+
+ swipeRefresh.setOnRefreshListener {
+ Log.v(TAG, "refreshing!")
+ historyManager.fetchHistory()
+ }
+ historyManager.isLoading.observe(viewLifecycleOwner, Observer { loading ->
+ Log.v(TAG, "setting refreshing to $loading")
+ swipeRefresh.isRefreshing = loading
+ })
+ historyManager.items.observe(viewLifecycleOwner, Observer { result ->
+ when (result) {
+ is HistoryResult.Error -> onError()
+ is HistoryResult.Success -> historyListAdapter.setData(result.items)
+ }.exhaustive
+ })
+ }
+
+ override fun onStart() {
+ super.onStart()
+ if (model.configManager.merchantConfig?.instance == null) {
+ navigate(actionGlobalMerchantSettings())
+ } else {
+ historyManager.fetchHistory()
+ }
+ }
+
+ private fun onError() {
+ Snackbar.make(view!!, R.string.error_network, LENGTH_SHORT).show()
+ }
+
+ override fun onRefundClicked(item: HistoryItem) {
+ refundManager.startRefund(item)
+ navigate(actionNavHistoryToRefundFragment())
+ }
+
+}
+
+private class HistoryItemAdapter(private val listener: RefundClickListener) :
+ Adapter<HistoryItemViewHolder>() {
+
+ private val items = ArrayList<HistoryItem>()
+
+ override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): HistoryItemViewHolder {
+ val v =
+ LayoutInflater.from(parent.context).inflate(R.layout.list_item_history, parent, false)
+ return HistoryItemViewHolder(v)
+ }
+
+ override fun getItemCount() = items.size
+
+ override fun onBindViewHolder(holder: HistoryItemViewHolder, position: Int) {
+ holder.bind(items[position])
+ }
+
+ fun setData(items: List<HistoryItem>) {
+ this.items.clear()
+ this.items.addAll(items)
+ this.notifyDataSetChanged()
+ }
+
+ private inner class HistoryItemViewHolder(private val v: View) : ViewHolder(v) {
+
+ private val orderSummaryView: TextView = v.findViewById(R.id.orderSummaryView)
+ private val orderAmountView: TextView = v.findViewById(R.id.orderAmountView)
+ private val orderTimeView: TextView = v.findViewById(R.id.orderTimeView)
+ private val orderIdView: TextView = v.findViewById(R.id.orderIdView)
+ private val refundButton: ImageButton = v.findViewById(R.id.refundButton)
+
+ fun bind(item: HistoryItem) {
+ orderSummaryView.text = item.summary
+ val amount = item.amount
+ @SuppressLint("SetTextI18n")
+ orderAmountView.text = "${amount.amount} ${amount.currency}"
+ orderIdView.text = v.context.getString(R.string.history_ref_no, item.orderId)
+ orderTimeView.text = item.time.toRelativeTime(v.context)
+ refundButton.setOnClickListener { listener.onRefundClicked(item) }
+ }
+
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/history/RefundFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/history/RefundFragment.kt
new file mode 100644
index 0000000..1797cea
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/history/RefundFragment.kt
@@ -0,0 +1,99 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.history
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.annotation.StringRes
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.navigation.fragment.findNavController
+import com.google.android.material.snackbar.BaseTransientBottomBar.LENGTH_LONG
+import com.google.android.material.snackbar.Snackbar
+import kotlinx.android.synthetic.main.fragment_refund.*
+import net.taler.merchantpos.MainViewModel
+import net.taler.merchantpos.R
+import net.taler.merchantpos.fadeIn
+import net.taler.merchantpos.fadeOut
+import net.taler.merchantpos.history.RefundFragmentDirections.Companion.actionRefundFragmentToRefundUriFragment
+import net.taler.merchantpos.history.RefundResult.Error
+import net.taler.merchantpos.history.RefundResult.PastDeadline
+import net.taler.merchantpos.history.RefundResult.Success
+import net.taler.merchantpos.navigate
+
+class RefundFragment : Fragment() {
+
+ private val model: MainViewModel by activityViewModels()
+ private val refundManager by lazy { model.refundManager }
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_refund, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ val item = refundManager.toBeRefunded ?: throw IllegalStateException()
+ amountInputView.setText(item.amount.amount)
+ currencyView.text = item.amount.currency
+ abortButton.setOnClickListener { findNavController().navigateUp() }
+ refundButton.setOnClickListener { onRefundButtonClicked(item) }
+
+ refundManager.refundResult.observe(viewLifecycleOwner, Observer { result ->
+ onRefundResultChanged(result)
+ })
+ }
+
+ private fun onRefundButtonClicked(item: HistoryItem) {
+ val inputAmount = amountInputView.text.toString().toDouble()
+ if (inputAmount > item.amount.amount.toDouble()) {
+ amountView.error = getString(R.string.refund_error_max_amount, item.amount.amount)
+ return
+ }
+ if (inputAmount <= 0.0) {
+ amountView.error = getString(R.string.refund_error_zero)
+ return
+ }
+ amountView.error = null
+ refundButton.fadeOut()
+ progressBar.fadeIn()
+ refundManager.refund(item, inputAmount, reasonInputView.text.toString())
+ }
+
+ private fun onRefundResultChanged(result: RefundResult?): Any = when (result) {
+ Error -> onError(R.string.refund_error_backend)
+ PastDeadline -> onError(R.string.refund_error_deadline)
+ is Success -> {
+ progressBar.fadeOut()
+ refundButton.fadeIn()
+ navigate(actionRefundFragmentToRefundUriFragment())
+ }
+ null -> { // no-op
+ }
+ }
+
+ private fun onError(@StringRes res: Int) {
+ Snackbar.make(view!!, res, LENGTH_LONG).show()
+ progressBar.fadeOut()
+ refundButton.fadeIn()
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/history/RefundManager.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/history/RefundManager.kt
new file mode 100644
index 0000000..270b3b8
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/history/RefundManager.kt
@@ -0,0 +1,111 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.history
+
+import android.util.Log
+import androidx.annotation.UiThread
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import com.android.volley.Request.Method.POST
+import com.android.volley.RequestQueue
+import com.android.volley.Response.ErrorListener
+import com.android.volley.Response.Listener
+import net.taler.merchantpos.config.ConfigManager
+import net.taler.merchantpos.config.MerchantRequest
+import org.json.JSONObject
+
+sealed class RefundResult {
+ object Error : RefundResult()
+ object PastDeadline : RefundResult()
+ class Success(
+ val refundUri: String,
+ val item: HistoryItem,
+ val amount: Double,
+ val reason: String
+ ) : RefundResult()
+}
+
+class RefundManager(
+ private val configManager: ConfigManager,
+ private val queue: RequestQueue
+) {
+
+ var toBeRefunded: HistoryItem? = null
+ private set
+
+ private val mRefundResult = MutableLiveData<RefundResult>()
+ internal val refundResult: LiveData<RefundResult> = mRefundResult
+
+ @UiThread
+ internal fun startRefund(item: HistoryItem) {
+ toBeRefunded = item
+ mRefundResult.value = null
+ }
+
+ @UiThread
+ internal fun refund(item: HistoryItem, amount: Double, reason: String) {
+ val merchantConfig = configManager.merchantConfig!!
+ val refundRequest = mapOf(
+ "order_id" to item.orderId,
+ "refund" to "${item.amount.currency}:$amount",
+ "reason" to reason
+ )
+ val body = JSONObject(refundRequest)
+ val req = MerchantRequest(POST, merchantConfig, "refund", null, body,
+ Listener { onRefundResponse(it, item, amount, reason) },
+ ErrorListener { onRefundError() }
+ )
+ queue.add(req)
+ }
+
+ @UiThread
+ private fun onRefundResponse(
+ json: JSONObject,
+ item: HistoryItem,
+ amount: Double,
+ reason: String
+ ) {
+ if (!json.has("contract_terms")) {
+ Log.e("TEST", "json: $json")
+ onRefundError()
+ return
+ }
+
+ val contractTerms = json.getJSONObject("contract_terms")
+ val refundDeadline = if (contractTerms.has("refund_deadline")) {
+ contractTerms.getJSONObject("refund_deadline").getLong("t_ms")
+ } else null
+ val autoRefund = contractTerms.has("auto_refund")
+ val refundUri = json.getString("taler_refund_uri")
+
+ Log.e("TEST", "refundDeadline: $refundDeadline")
+ if (refundDeadline != null) Log.e(
+ "TEST",
+ "refundDeadline passed: ${System.currentTimeMillis() > refundDeadline}"
+ )
+ Log.e("TEST", "autoRefund: $autoRefund")
+ Log.e("TEST", "refundUri: $refundUri")
+
+ mRefundResult.value = RefundResult.Success(refundUri, item, amount, reason)
+ }
+
+ @UiThread
+ private fun onRefundError() {
+ mRefundResult.value = RefundResult.Error
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/history/RefundUriFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/history/RefundUriFragment.kt
new file mode 100644
index 0000000..f2bd569
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/history/RefundUriFragment.kt
@@ -0,0 +1,65 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.history
+
+import android.annotation.SuppressLint
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.navigation.fragment.findNavController
+import kotlinx.android.synthetic.main.fragment_refund_uri.*
+import net.taler.merchantpos.MainViewModel
+import net.taler.merchantpos.NfcManager.Companion.hasNfc
+import net.taler.merchantpos.QrCodeManager.makeQrCode
+import net.taler.merchantpos.R
+
+class RefundUriFragment : Fragment() {
+
+ private val model: MainViewModel by activityViewModels()
+ private val refundManager by lazy { model.refundManager }
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_refund_uri, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ super.onViewCreated(view, savedInstanceState)
+ val result = refundManager.refundResult.value
+ if (result !is RefundResult.Success) throw IllegalStateException()
+
+ refundQrcodeView.setImageBitmap(makeQrCode(result.refundUri))
+
+ val introRes =
+ if (hasNfc(requireContext())) R.string.refund_intro_nfc else R.string.refund_intro
+ refundIntroView.setText(introRes)
+
+ @SuppressLint("SetTextI18n")
+ refundAmountView.text = "${result.amount} ${result.item.amount.currency}"
+
+ refundRefView.text =
+ getString(R.string.refund_order_ref, result.item.orderId, result.reason)
+
+ cancelRefundButton.setOnClickListener { findNavController().navigateUp() }
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/order/CategoriesFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/order/CategoriesFragment.kt
new file mode 100644
index 0000000..34b97c0
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/order/CategoriesFragment.kt
@@ -0,0 +1,106 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.order
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.INVISIBLE
+import android.view.ViewGroup
+import android.widget.Button
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.Adapter
+import kotlinx.android.synthetic.main.fragment_categories.*
+import net.taler.merchantpos.MainViewModel
+import net.taler.merchantpos.R
+import net.taler.merchantpos.order.CategoryAdapter.CategoryViewHolder
+
+interface CategorySelectionListener {
+ fun onCategorySelected(category: Category)
+}
+
+class CategoriesFragment : Fragment(), CategorySelectionListener {
+
+ private val viewModel: MainViewModel by activityViewModels()
+ private val orderManager by lazy { viewModel.orderManager }
+ private val adapter = CategoryAdapter(this)
+
+ override fun onCreateView(
+ inflater: LayoutInflater,
+ container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_categories, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ categoriesList.apply {
+ adapter = this@CategoriesFragment.adapter
+ layoutManager = LinearLayoutManager(requireContext())
+ }
+
+ orderManager.categories.observe(viewLifecycleOwner, Observer { categories ->
+ adapter.setItems(categories)
+ progressBar.visibility = INVISIBLE
+ })
+ }
+
+ override fun onCategorySelected(category: Category) {
+ orderManager.setCurrentCategory(category)
+ }
+
+}
+
+private class CategoryAdapter(
+ private val listener: CategorySelectionListener
+) : Adapter<CategoryViewHolder>() {
+
+ private val categories = ArrayList<Category>()
+
+ override fun getItemCount() = categories.size
+
+ override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CategoryViewHolder {
+ val view =
+ LayoutInflater.from(parent.context).inflate(R.layout.list_item_category, parent, false)
+ return CategoryViewHolder(view)
+ }
+
+ override fun onBindViewHolder(holder: CategoryViewHolder, position: Int) {
+ holder.bind(categories[position])
+ }
+
+ fun setItems(items: List<Category>) {
+ categories.clear()
+ categories.addAll(items)
+ notifyDataSetChanged()
+ }
+
+ private inner class CategoryViewHolder(v: View) : RecyclerView.ViewHolder(v) {
+ private val button: Button = v.findViewById(R.id.button)
+
+ fun bind(category: Category) {
+ button.text = category.localizedName
+ button.isPressed = category.selected
+ button.setOnClickListener { listener.onCategorySelected(category) }
+ }
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/order/Definitions.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/order/Definitions.kt
new file mode 100644
index 0000000..63eda17
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/order/Definitions.kt
@@ -0,0 +1,205 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.order
+
+import androidx.core.os.LocaleListCompat
+import com.fasterxml.jackson.annotation.JsonIgnore
+import com.fasterxml.jackson.annotation.JsonInclude
+import com.fasterxml.jackson.annotation.JsonInclude.Include.NON_NULL
+import com.fasterxml.jackson.annotation.JsonProperty
+import net.taler.merchantpos.Amount
+import java.util.*
+import java.util.Locale.LanguageRange
+import kotlin.collections.ArrayList
+import kotlin.collections.HashMap
+
+data class Category(
+ val id: Int,
+ val name: String,
+ @JsonProperty("name_i18n")
+ val nameI18n: Map<String, String>?
+) {
+ var selected: Boolean = false
+ val localizedName: String get() = getLocalizedString(nameI18n, name)
+}
+
+@JsonInclude(NON_NULL)
+abstract class Product {
+ @get:JsonProperty("product_id")
+ abstract val productId: String?
+ abstract val description: String
+ @get:JsonProperty("description_i18n")
+ abstract val descriptionI18n: Map<String, String>?
+ abstract val price: String
+ @get:JsonProperty("delivery_location")
+ abstract val location: String?
+ abstract val image: String?
+ @get:JsonIgnore
+ val localizedDescription: String
+ get() = getLocalizedString(descriptionI18n, description)
+}
+
+data class ConfigProduct(
+ @JsonIgnore
+ val id: String = UUID.randomUUID().toString(),
+ override val productId: String?,
+ override val description: String,
+ override val descriptionI18n: Map<String, String>?,
+ override val price: String,
+ override val location: String?,
+ override val image: String?,
+ val categories: List<Int>,
+ @JsonIgnore
+ val quantity: Int = 0
+) : Product() {
+ val priceAsDouble by lazy { Amount.fromString(price).amount.toDouble() }
+
+ override fun equals(other: Any?) = other is ConfigProduct && id == other.id
+ override fun hashCode() = id.hashCode()
+}
+
+data class ContractProduct(
+ override val productId: String?,
+ override val description: String,
+ override val descriptionI18n: Map<String, String>?,
+ override val price: String,
+ override val location: String?,
+ override val image: String?,
+ val quantity: Int
+) : Product() {
+ constructor(product: ConfigProduct) : this(
+ product.productId,
+ product.description,
+ product.descriptionI18n,
+ product.price,
+ product.location,
+ product.image,
+ product.quantity
+ )
+}
+
+private fun getLocalizedString(map: Map<String, String>?, default: String): String {
+ // just return the default, if it is the only element
+ if (map == null) return default
+ // create a priority list of language ranges from system locales
+ val locales = LocaleListCompat.getDefault()
+ val priorityList = ArrayList<LanguageRange>(locales.size())
+ for (i in 0 until locales.size()) {
+ priorityList.add(LanguageRange(locales[i].toLanguageTag()))
+ }
+ // create a list of locales available in the given map
+ val availableLocales = map.keys.mapNotNull {
+ if (it == "_") return@mapNotNull null
+ val list = it.split("_")
+ when (list.size) {
+ 1 -> Locale(list[0])
+ 2 -> Locale(list[0], list[1])
+ 3 -> Locale(list[0], list[1], list[2])
+ else -> null
+ }
+ }
+ val match = Locale.lookup(priorityList, availableLocales)
+ return match?.toString()?.let { map[it] } ?: default
+}
+
+data class Order(val id: Int, val availableCategories: Map<Int, Category>) {
+ val products = ArrayList<ConfigProduct>()
+ val title: String = id.toString()
+ val summary: String
+ get() {
+ if (products.size == 1) return products[0].description
+ return getCategoryQuantities().map { (category: Category, quantity: Int) ->
+ "$quantity x ${category.localizedName}"
+ }.joinToString()
+ }
+ val total: Double
+ get() {
+ var total = 0.0
+ products.forEach { product ->
+ val price = product.priceAsDouble
+ total += price * product.quantity
+ }
+ return total
+ }
+ val totalAsString: String
+ get() = String.format("%.2f", total)
+
+ operator fun plus(product: ConfigProduct): Order {
+ val i = products.indexOf(product)
+ if (i == -1) {
+ products.add(product.copy(quantity = 1))
+ } else {
+ val quantity = products[i].quantity
+ products[i] = products[i].copy(quantity = quantity + 1)
+ }
+ return this
+ }
+
+ operator fun minus(product: ConfigProduct): Order {
+ val i = products.indexOf(product)
+ if (i == -1) return this
+ val quantity = products[i].quantity
+ if (quantity <= 1) {
+ products.remove(product)
+ } else {
+ products[i] = products[i].copy(quantity = quantity - 1)
+ }
+ return this
+ }
+
+ private fun getCategoryQuantities(): HashMap<Category, Int> {
+ val categories = HashMap<Category, Int>()
+ products.forEach { product ->
+ val categoryId = product.categories[0]
+ val category = availableCategories.getValue(categoryId)
+ val oldQuantity = categories[category] ?: 0
+ categories[category] = oldQuantity + product.quantity
+ }
+ return categories
+ }
+
+ /**
+ * Returns a map of i18n summaries for each locale present in *all* given [Category]s
+ * or null if there's no locale that fulfills this criteria.
+ */
+ val summaryI18n: Map<String, String>?
+ get() {
+ if (products.size == 1) return products[0].descriptionI18n
+ val categoryQuantities = getCategoryQuantities()
+ // get all available locales
+ val availableLocales = categoryQuantities.mapNotNull { (category, _) ->
+ val nameI18n = category.nameI18n
+ // if one category doesn't have locales, we can return null here already
+ nameI18n?.keys ?: return null
+ }.flatten().toHashSet()
+ // remove all locales not supported by all categories
+ categoryQuantities.forEach { (category, _) ->
+ // category.nameI18n should be non-null now
+ availableLocales.retainAll(category.nameI18n!!.keys)
+ if (availableLocales.isEmpty()) return null
+ }
+ return availableLocales.map { locale ->
+ Pair(
+ locale, categoryQuantities.map { (category, quantity) ->
+ // category.nameI18n should be non-null now
+ "$quantity x ${category.nameI18n!![locale]}"
+ }.joinToString()
+ )
+ }.toMap()
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/order/LiveOrder.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/order/LiveOrder.kt
new file mode 100644
index 0000000..ff6061a
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/order/LiveOrder.kt
@@ -0,0 +1,109 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.order
+
+import androidx.annotation.UiThread
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.Transformations
+import net.taler.merchantpos.CombinedLiveData
+import net.taler.merchantpos.order.RestartState.DISABLED
+import net.taler.merchantpos.order.RestartState.ENABLED
+import net.taler.merchantpos.order.RestartState.UNDO
+
+internal enum class RestartState { ENABLED, DISABLED, UNDO }
+
+internal interface LiveOrder {
+ val order: LiveData<Order>
+ val orderTotal: LiveData<Double>
+ val restartState: LiveData<RestartState>
+ val modifyOrderAllowed: LiveData<Boolean>
+ val lastAddedProduct: ConfigProduct?
+ val selectedProductKey: String?
+ fun restartOrUndo()
+ fun selectOrderLine(product: ConfigProduct?)
+ fun increaseSelectedOrderLine()
+ fun decreaseSelectedOrderLine()
+}
+
+internal class MutableLiveOrder(
+ val id: Int,
+ private val productsByCategory: HashMap<Category, ArrayList<ConfigProduct>>
+) : LiveOrder {
+ private val availableCategories: Map<Int, Category>
+ get() = productsByCategory.keys.map { it.id to it }.toMap()
+ override val order: MutableLiveData<Order> = MutableLiveData(Order(id, availableCategories))
+ override val orderTotal: LiveData<Double> = Transformations.map(order) { it.total }
+ override val restartState = MutableLiveData(DISABLED)
+ private val selectedOrderLine = MutableLiveData<ConfigProduct>()
+ override val selectedProductKey: String?
+ get() = selectedOrderLine.value?.id
+ override val modifyOrderAllowed =
+ CombinedLiveData(restartState, selectedOrderLine) { restartState, selectedOrderLine ->
+ restartState != DISABLED && selectedOrderLine != null
+ }
+ override var lastAddedProduct: ConfigProduct? = null
+ private var undoOrder: Order? = null
+
+ @UiThread
+ internal fun addProduct(product: ConfigProduct) {
+ lastAddedProduct = product
+ order.value = order.value!! + product
+ restartState.value = ENABLED
+ }
+
+ @UiThread
+ internal fun removeProduct(product: ConfigProduct) {
+ val modifiedOrder = order.value!! - product
+ order.value = modifiedOrder
+ restartState.value = if (modifiedOrder.products.isEmpty()) DISABLED else ENABLED
+ }
+
+ @UiThread
+ internal fun isEmpty() = order.value!!.products.isEmpty()
+
+ @UiThread
+ override fun restartOrUndo() {
+ if (restartState.value == UNDO) {
+ order.value = undoOrder
+ restartState.value = ENABLED
+ undoOrder = null
+ } else {
+ undoOrder = order.value
+ order.value = Order(id, availableCategories)
+ restartState.value = UNDO
+ }
+ }
+
+ @UiThread
+ override fun selectOrderLine(product: ConfigProduct?) {
+ selectedOrderLine.value = product
+ }
+
+ @UiThread
+ override fun increaseSelectedOrderLine() {
+ val orderLine = selectedOrderLine.value ?: throw IllegalStateException()
+ addProduct(orderLine)
+ }
+
+ @UiThread
+ override fun decreaseSelectedOrderLine() {
+ val orderLine = selectedOrderLine.value ?: throw IllegalStateException()
+ removeProduct(orderLine)
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/order/OrderFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/order/OrderFragment.kt
new file mode 100644
index 0000000..49f7cf2
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/order/OrderFragment.kt
@@ -0,0 +1,115 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.order
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.navigation.fragment.findNavController
+import androidx.transition.TransitionManager.beginDelayedTransition
+import kotlinx.android.synthetic.main.fragment_order.*
+import net.taler.merchantpos.MainViewModel
+import net.taler.merchantpos.R
+import net.taler.merchantpos.navigate
+import net.taler.merchantpos.order.OrderFragmentDirections.Companion.actionGlobalConfigFetcher
+import net.taler.merchantpos.order.OrderFragmentDirections.Companion.actionOrderToMerchantSettings
+import net.taler.merchantpos.order.OrderFragmentDirections.Companion.actionOrderToProcessPayment
+import net.taler.merchantpos.order.RestartState.ENABLED
+import net.taler.merchantpos.order.RestartState.UNDO
+
+class OrderFragment : Fragment() {
+
+ private val viewModel: MainViewModel by activityViewModels()
+ private val orderManager by lazy { viewModel.orderManager }
+ private val paymentManager by lazy { viewModel.paymentManager }
+
+ override fun onCreateView(
+ inflater: LayoutInflater,
+ container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_order, container, false)
+ }
+
+ override fun onActivityCreated(savedInstanceState: Bundle?) {
+ super.onActivityCreated(savedInstanceState)
+ orderManager.currentOrderId.observe(viewLifecycleOwner, Observer { orderId ->
+ val liveOrder = orderManager.getOrder(orderId)
+ onOrderSwitched(orderId, liveOrder)
+ // add a new OrderStateFragment for each order
+ // as switching its internals (like we do here) would be too messy
+ childFragmentManager.beginTransaction()
+ .replace(R.id.fragment1, OrderStateFragment())
+ .commit()
+ })
+ }
+
+ override fun onStart() {
+ super.onStart()
+ if (!viewModel.configManager.config.isValid()) {
+ actionOrderToMerchantSettings().navigate(findNavController())
+ } else if (viewModel.configManager.merchantConfig?.currency == null) {
+ actionGlobalConfigFetcher().navigate(findNavController())
+ }
+ }
+
+ private fun onOrderSwitched(orderId: Int, liveOrder: LiveOrder) {
+ // order title
+ liveOrder.order.observe(viewLifecycleOwner, Observer { order ->
+ activity?.title = getString(R.string.order_label_title, order.title)
+ })
+ // restart button
+ restartButton.setOnClickListener { liveOrder.restartOrUndo() }
+ liveOrder.restartState.observe(viewLifecycleOwner, Observer { state ->
+ beginDelayedTransition(view as ViewGroup)
+ if (state == UNDO) {
+ restartButton.setText(R.string.order_undo)
+ restartButton.isEnabled = true
+ completeButton.isEnabled = false
+ } else {
+ restartButton.setText(R.string.order_restart)
+ restartButton.isEnabled = state == ENABLED
+ completeButton.isEnabled = state == ENABLED
+ }
+ })
+ // -1 and +1 buttons
+ liveOrder.modifyOrderAllowed.observe(viewLifecycleOwner, Observer { allowed ->
+ minusButton.isEnabled = allowed
+ plusButton.isEnabled = allowed
+ })
+ minusButton.setOnClickListener { liveOrder.decreaseSelectedOrderLine() }
+ plusButton.setOnClickListener { liveOrder.increaseSelectedOrderLine() }
+ // previous and next button
+ prevButton.isEnabled = orderManager.hasPreviousOrder(orderId)
+ orderManager.hasNextOrder(orderId).observe(viewLifecycleOwner, Observer { hasNextOrder ->
+ nextButton.isEnabled = hasNextOrder
+ })
+ prevButton.setOnClickListener { orderManager.previousOrder() }
+ nextButton.setOnClickListener { orderManager.nextOrder() }
+ // complete button
+ completeButton.setOnClickListener {
+ val order = liveOrder.order.value ?: return@setOnClickListener
+ paymentManager.createPayment(order)
+ actionOrderToProcessPayment().navigate(findNavController())
+ }
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/order/OrderManager.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/order/OrderManager.kt
new file mode 100644
index 0000000..48ddc57
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/order/OrderManager.kt
@@ -0,0 +1,196 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.order
+
+import android.content.Context
+import android.util.Log
+import androidx.annotation.UiThread
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.Transformations.map
+import com.fasterxml.jackson.core.type.TypeReference
+import com.fasterxml.jackson.databind.ObjectMapper
+import net.taler.merchantpos.Amount.Companion.fromString
+import net.taler.merchantpos.R
+import net.taler.merchantpos.config.ConfigurationReceiver
+import net.taler.merchantpos.order.RestartState.ENABLED
+import org.json.JSONObject
+
+class OrderManager(
+ private val context: Context,
+ private val mapper: ObjectMapper
+) : ConfigurationReceiver {
+
+ companion object {
+ val TAG = OrderManager::class.java.simpleName
+ }
+
+ private var orderCounter: Int = 0
+ private val mCurrentOrderId = MutableLiveData<Int>()
+ internal val currentOrderId: LiveData<Int> = mCurrentOrderId
+
+ private val productsByCategory = HashMap<Category, ArrayList<ConfigProduct>>()
+
+ private val orders = LinkedHashMap<Int, MutableLiveOrder>()
+
+ private val mProducts = MutableLiveData<List<ConfigProduct>>()
+ internal val products: LiveData<List<ConfigProduct>> = mProducts
+
+ private val mCategories = MutableLiveData<List<Category>>()
+ internal val categories: LiveData<List<Category>> = mCategories
+
+ override suspend fun onConfigurationReceived(json: JSONObject, currency: String): String? {
+ // parse categories
+ val categoriesStr = json.getJSONArray("categories").toString()
+ val categoriesType = object : TypeReference<List<Category>>() {}
+ val categories: List<Category> = mapper.readValue(categoriesStr, categoriesType)
+ if (categories.isEmpty()) {
+ Log.e(TAG, "No valid category found.")
+ return context.getString(R.string.config_error_category)
+ }
+ // pre-select the first category
+ categories[0].selected = true
+
+ // parse products (live data gets updated in setCurrentCategory())
+ val productsStr = json.getJSONArray("products").toString()
+ val productsType = object : TypeReference<List<ConfigProduct>>() {}
+ val products: List<ConfigProduct> = mapper.readValue(productsStr, productsType)
+
+ // group products by categories
+ productsByCategory.clear()
+ products.forEach { product ->
+ val productCurrency = fromString(product.price).currency
+ if (productCurrency != currency) {
+ Log.e(TAG, "Product $product has currency $productCurrency, $currency expected")
+ return context.getString(
+ R.string.config_error_currency, product.description, productCurrency, currency
+ )
+ }
+ product.categories.forEach { categoryId ->
+ val category = categories.find { it.id == categoryId }
+ if (category == null) {
+ Log.e(TAG, "Product $product has unknown category $categoryId")
+ return context.getString(
+ R.string.config_error_product_category_id, product.description, categoryId
+ )
+ }
+ if (productsByCategory.containsKey(category)) {
+ productsByCategory[category]?.add(product)
+ } else {
+ productsByCategory[category] = ArrayList<ConfigProduct>().apply { add(product) }
+ }
+ }
+ }
+ return if (productsByCategory.size > 0) {
+ mCategories.postValue(categories)
+ mProducts.postValue(productsByCategory[categories[0]])
+ // Initialize first empty order, note this won't work when updating config mid-flight
+ if (orders.isEmpty()) {
+ val id = orderCounter++
+ orders[id] = MutableLiveOrder(id, productsByCategory)
+ mCurrentOrderId.postValue(id)
+ }
+ null // success, no error string
+ } else context.getString(R.string.config_error_product_zero)
+ }
+
+ @UiThread
+ internal fun getOrder(orderId: Int): LiveOrder {
+ return orders[orderId] ?: throw IllegalArgumentException()
+ }
+
+ @UiThread
+ internal fun nextOrder() {
+ val currentId = currentOrderId.value!!
+ var foundCurrentOrder = false
+ var nextId: Int? = null
+ for (orderId in orders.keys) {
+ if (foundCurrentOrder) {
+ nextId = orderId
+ break
+ }
+ if (orderId == currentId) foundCurrentOrder = true
+ }
+ if (nextId == null) {
+ nextId = orderCounter++
+ orders[nextId] = MutableLiveOrder(nextId, productsByCategory)
+ }
+ val currentOrder = order(currentId)
+ if (currentOrder.isEmpty()) orders.remove(currentId)
+ else currentOrder.lastAddedProduct = null // not needed anymore and it would get selected
+ mCurrentOrderId.value = nextId
+ }
+
+ @UiThread
+ internal fun previousOrder() {
+ val currentId = currentOrderId.value!!
+ var previousId: Int? = null
+ var foundCurrentOrder = false
+ for (orderId in orders.keys) {
+ if (orderId == currentId) {
+ foundCurrentOrder = true
+ break
+ }
+ previousId = orderId
+ }
+ if (previousId == null || !foundCurrentOrder) {
+ throw AssertionError("Could not find previous order for $currentId")
+ }
+ val currentOrder = order(currentId)
+ // remove current order if empty, or lastAddedProduct as it is not needed anymore
+ // and would get selected when navigating back instead of last selection
+ if (currentOrder.isEmpty()) orders.remove(currentId)
+ else currentOrder.lastAddedProduct = null
+ mCurrentOrderId.value = previousId
+ }
+
+ fun hasPreviousOrder(currentOrderId: Int): Boolean {
+ return currentOrderId != orders.keys.first()
+ }
+
+ fun hasNextOrder(currentOrderId: Int) = map(order(currentOrderId).restartState) { state ->
+ state == ENABLED || currentOrderId != orders.keys.last()
+ }
+
+ internal fun setCurrentCategory(category: Category) {
+ val newCategories = categories.value?.apply {
+ forEach { if (it.selected) it.selected = false }
+ category.selected = true
+ }
+ mCategories.postValue(newCategories)
+ mProducts.postValue(productsByCategory[category])
+ }
+
+ @UiThread
+ internal fun addProduct(orderId: Int, product: ConfigProduct) {
+ order(orderId).addProduct(product)
+ }
+
+ @UiThread
+ internal fun onOrderPaid(orderId: Int) {
+ if (currentOrderId.value == orderId) {
+ if (hasPreviousOrder(orderId)) previousOrder()
+ else nextOrder()
+ }
+ orders.remove(orderId)
+ }
+
+ private fun order(orderId: Int): MutableLiveOrder {
+ return orders[orderId] ?: throw IllegalStateException()
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/order/OrderStateFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/order/OrderStateFragment.kt
new file mode 100644
index 0000000..1b70016
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/order/OrderStateFragment.kt
@@ -0,0 +1,213 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.order
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.MotionEvent
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.recyclerview.selection.ItemDetailsLookup
+import androidx.recyclerview.selection.ItemKeyProvider
+import androidx.recyclerview.selection.SelectionPredicates
+import androidx.recyclerview.selection.SelectionTracker
+import androidx.recyclerview.selection.StorageStrategy
+import androidx.recyclerview.widget.AsyncListDiffer
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.Adapter
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
+import kotlinx.android.synthetic.main.fragment_order_state.*
+import net.taler.merchantpos.MainViewModel
+import net.taler.merchantpos.R
+import net.taler.merchantpos.fadeIn
+import net.taler.merchantpos.fadeOut
+import net.taler.merchantpos.order.OrderAdapter.OrderLineLookup
+import net.taler.merchantpos.order.OrderAdapter.OrderViewHolder
+
+class OrderStateFragment : Fragment() {
+
+ private val viewModel: MainViewModel by activityViewModels()
+ private val orderManager by lazy { viewModel.orderManager }
+ private val liveOrder by lazy { orderManager.getOrder(orderManager.currentOrderId.value!!) }
+ private val adapter = OrderAdapter()
+ private var tracker: SelectionTracker<String>? = null
+
+ override fun onCreateView(
+ inflater: LayoutInflater,
+ container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_order_state, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ orderList.apply {
+ adapter = this@OrderStateFragment.adapter
+ layoutManager = LinearLayoutManager(requireContext())
+ }
+ val detailsLookup = OrderLineLookup(orderList)
+ val tracker = SelectionTracker.Builder(
+ "order-selection-id",
+ orderList,
+ adapter.keyProvider,
+ detailsLookup,
+ StorageStrategy.createStringStorage()
+ ).withSelectionPredicate(
+ SelectionPredicates.createSelectSingleAnything()
+ ).build()
+ savedInstanceState?.let { tracker.onRestoreInstanceState(it) }
+ adapter.tracker = tracker
+ this.tracker = tracker
+ if (savedInstanceState == null) {
+ // select last selected order line when re-creating this fragment
+ // do it before attaching the tracker observer
+ liveOrder.selectedProductKey?.let { tracker.select(it) }
+ }
+ tracker.addObserver(object : SelectionTracker.SelectionObserver<String>() {
+ override fun onItemStateChanged(key: String, selected: Boolean) {
+ super.onItemStateChanged(key, selected)
+ val item = if (selected) adapter.getItemByKey(key) else null
+ liveOrder.selectOrderLine(item)
+ }
+ })
+ liveOrder.order.observe(viewLifecycleOwner, Observer { order ->
+ onOrderChanged(order, tracker)
+ })
+ liveOrder.orderTotal.observe(viewLifecycleOwner, Observer { orderTotal ->
+ if (orderTotal == 0.0) {
+ totalView.fadeOut()
+ totalView.text = null
+ } else {
+ val currency = viewModel.configManager.merchantConfig?.currency
+ totalView.text = getString(R.string.order_total, orderTotal, currency)
+ totalView.fadeIn()
+ }
+ })
+ }
+
+ override fun onSaveInstanceState(outState: Bundle) {
+ super.onSaveInstanceState(outState)
+ tracker?.onSaveInstanceState(outState)
+ }
+
+ private fun onOrderChanged(order: Order, tracker: SelectionTracker<String>) {
+ adapter.setItems(order.products) {
+ liveOrder.lastAddedProduct?.let {
+ val position = adapter.findPosition(it)
+ if (position >= 0) {
+ // orderList can be null m(
+ orderList?.scrollToPosition(position)
+ orderList?.post { this.tracker?.select(it.id) }
+ }
+ }
+ // workaround for bug: SelectionObserver doesn't update when removing selected item
+ if (tracker.hasSelection()) {
+ val key = tracker.selection.first()
+ val product = order.products.find { it.id == key }
+ if (product == null) tracker.clearSelection()
+ }
+ }
+ }
+
+}
+
+private class OrderAdapter : Adapter<OrderViewHolder>() {
+
+ lateinit var tracker: SelectionTracker<String>
+ val keyProvider = OrderKeyProvider()
+ private val itemCallback = object : DiffUtil.ItemCallback<ConfigProduct>() {
+ override fun areItemsTheSame(oldItem: ConfigProduct, newItem: ConfigProduct): Boolean {
+ return oldItem == newItem
+ }
+
+ override fun areContentsTheSame(oldItem: ConfigProduct, newItem: ConfigProduct): Boolean {
+ return oldItem.quantity == newItem.quantity
+ }
+ }
+ private val differ = AsyncListDiffer(this, itemCallback)
+
+ override fun getItemCount() = differ.currentList.size
+
+ override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): OrderViewHolder {
+ val view =
+ LayoutInflater.from(parent.context).inflate(R.layout.list_item_order, parent, false)
+ return OrderViewHolder(view)
+ }
+
+ override fun onBindViewHolder(holder: OrderViewHolder, position: Int) {
+ val item = getItem(position)!!
+ holder.bind(item, tracker.isSelected(item.id))
+ }
+
+ fun setItems(items: List<ConfigProduct>, commitCallback: () -> Unit) {
+ // toMutableList() is needed for some reason, otherwise doesn't update adapter
+ differ.submitList(items.toMutableList(), commitCallback)
+ }
+
+ fun getItem(position: Int): ConfigProduct? = differ.currentList[position]
+
+ fun getItemByKey(key: String): ConfigProduct? {
+ return differ.currentList.find { it.id == key }
+ }
+
+ fun findPosition(product: ConfigProduct): Int {
+ return differ.currentList.indexOf(product)
+ }
+
+ private inner class OrderViewHolder(private val v: View) : ViewHolder(v) {
+ private val quantity: TextView = v.findViewById(R.id.quantity)
+ private val name: TextView = v.findViewById(R.id.name)
+ private val price: TextView = v.findViewById(R.id.price)
+
+ fun bind(product: ConfigProduct, selected: Boolean) {
+ v.isActivated = selected
+ quantity.text = product.quantity.toString()
+ name.text = product.localizedDescription
+ price.text = String.format("%.2f", product.priceAsDouble * product.quantity)
+ }
+ }
+
+ private inner class OrderKeyProvider : ItemKeyProvider<String>(SCOPE_MAPPED) {
+ override fun getKey(position: Int) = getItem(position)!!.id
+ override fun getPosition(key: String): Int {
+ return differ.currentList.indexOfFirst { it.id == key }
+ }
+ }
+
+ internal class OrderLineLookup(private val list: RecyclerView) : ItemDetailsLookup<String>() {
+ override fun getItemDetails(e: MotionEvent): ItemDetails<String>? {
+ list.findChildViewUnder(e.x, e.y)?.let { view ->
+ val holder = list.getChildViewHolder(view)
+ val adapter = list.adapter as OrderAdapter
+ val position = holder.adapterPosition
+ return object : ItemDetails<String>() {
+ override fun getPosition(): Int = position
+ override fun getSelectionKey(): String = adapter.keyProvider.getKey(position)
+ override fun inSelectionHotspot(e: MotionEvent) = true
+ }
+ }
+ return null
+ }
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/order/ProductsFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/order/ProductsFragment.kt
new file mode 100644
index 0000000..4704ad0
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/order/ProductsFragment.kt
@@ -0,0 +1,111 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.order
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.INVISIBLE
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.recyclerview.widget.GridLayoutManager
+import androidx.recyclerview.widget.RecyclerView.Adapter
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
+import kotlinx.android.synthetic.main.fragment_products.*
+import net.taler.merchantpos.MainViewModel
+import net.taler.merchantpos.R
+import net.taler.merchantpos.order.ProductAdapter.ProductViewHolder
+
+interface ProductSelectionListener {
+ fun onProductSelected(product: ConfigProduct)
+}
+
+class ProductsFragment : Fragment(), ProductSelectionListener {
+
+ private val viewModel: MainViewModel by activityViewModels()
+ private val orderManager by lazy { viewModel.orderManager }
+ private val adapter = ProductAdapter(this)
+
+ override fun onCreateView(
+ inflater: LayoutInflater,
+ container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_products, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ productsList.apply {
+ adapter = this@ProductsFragment.adapter
+ layoutManager = GridLayoutManager(requireContext(), 3)
+ }
+
+ orderManager.products.observe(viewLifecycleOwner, Observer { products ->
+ if (products == null) {
+ adapter.setItems(emptyList())
+ } else {
+ adapter.setItems(products)
+ }
+ progressBar.visibility = INVISIBLE
+ })
+ }
+
+ override fun onProductSelected(product: ConfigProduct) {
+ orderManager.addProduct(orderManager.currentOrderId.value!!, product)
+ }
+
+}
+
+private class ProductAdapter(
+ private val listener: ProductSelectionListener
+) : Adapter<ProductViewHolder>() {
+
+ private val products = ArrayList<ConfigProduct>()
+
+ override fun getItemCount() = products.size
+
+ override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ProductViewHolder {
+ val view =
+ LayoutInflater.from(parent.context).inflate(R.layout.list_item_product, parent, false)
+ return ProductViewHolder(view)
+ }
+
+ override fun onBindViewHolder(holder: ProductViewHolder, position: Int) {
+ holder.bind(products[position])
+ }
+
+ fun setItems(items: List<ConfigProduct>) {
+ products.clear()
+ products.addAll(items)
+ notifyDataSetChanged()
+ }
+
+ private inner class ProductViewHolder(private val v: View) : ViewHolder(v) {
+ private val name: TextView = v.findViewById(R.id.name)
+ private val price: TextView = v.findViewById(R.id.price)
+
+ fun bind(product: ConfigProduct) {
+ name.text = product.localizedDescription
+ price.text = product.priceAsDouble.toString()
+ v.setOnClickListener { listener.onProductSelected(product) }
+ }
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/payment/Payment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/payment/Payment.kt
new file mode 100644
index 0000000..b7e4a4b
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/payment/Payment.kt
@@ -0,0 +1,29 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.payment
+
+import net.taler.merchantpos.order.Order
+
+data class Payment(
+ val order: Order,
+ val summary: String,
+ val currency: String,
+ val orderId: String? = null,
+ val talerPayUri: String? = null,
+ val paid: Boolean = false,
+ val error: Boolean = false
+)
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/payment/PaymentManager.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/payment/PaymentManager.kt
new file mode 100644
index 0000000..7f15816
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/payment/PaymentManager.kt
@@ -0,0 +1,154 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.payment
+
+import android.os.CountDownTimer
+import android.util.Log
+import androidx.annotation.UiThread
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import com.android.volley.Request.Method.GET
+import com.android.volley.Request.Method.POST
+import com.android.volley.RequestQueue
+import com.android.volley.Response.ErrorListener
+import com.android.volley.Response.Listener
+import com.android.volley.VolleyError
+import com.fasterxml.jackson.databind.ObjectMapper
+import net.taler.merchantpos.config.ConfigManager
+import net.taler.merchantpos.config.MerchantRequest
+import net.taler.merchantpos.order.ContractProduct
+import net.taler.merchantpos.order.Order
+import org.json.JSONArray
+import org.json.JSONObject
+import java.net.URLEncoder
+import java.util.concurrent.TimeUnit.MINUTES
+import java.util.concurrent.TimeUnit.SECONDS
+
+private val TIMEOUT = MINUTES.toMillis(2)
+private val CHECK_INTERVAL = SECONDS.toMillis(1)
+private const val FULFILLMENT_PREFIX = "taler://fulfillment-success/"
+
+class PaymentManager(
+ private val configManager: ConfigManager,
+ private val queue: RequestQueue,
+ private val mapper: ObjectMapper
+) {
+
+ companion object {
+ val TAG = PaymentManager::class.java.simpleName
+ }
+
+ private val mPayment = MutableLiveData<Payment>()
+ val payment: LiveData<Payment> = mPayment
+
+ private val checkTimer = object : CountDownTimer(TIMEOUT, CHECK_INTERVAL) {
+ override fun onTick(millisUntilFinished: Long) {
+ val orderId = payment.value?.orderId
+ if (orderId == null) cancel()
+ else checkPayment(orderId)
+ }
+
+ override fun onFinish() {
+ payment.value?.copy(error = true)?.let { mPayment.value = it }
+ }
+ }
+
+ @UiThread
+ fun createPayment(order: Order) {
+ val merchantConfig = configManager.merchantConfig!!
+
+ val currency = merchantConfig.currency!!
+ val amount = "$currency:${order.totalAsString}"
+ val summary = order.summary
+ val summaryI18n = order.summaryI18n
+
+ mPayment.value = Payment(order, summary, currency)
+
+ val fulfillmentId = "${System.currentTimeMillis()}-${order.hashCode()}"
+ val fulfillmentUrl =
+ "${FULFILLMENT_PREFIX}${URLEncoder.encode(summary, "UTF-8")}#$fulfillmentId"
+ val body = JSONObject().apply {
+ put("order", JSONObject().apply {
+ put("amount", amount)
+ put("summary", summary)
+ if (summaryI18n != null) put("summary_i18n", order.summaryI18n)
+ // fulfillment_url needs to be unique per order
+ put("fulfillment_url", fulfillmentUrl)
+ put("instance", "default")
+ put("products", order.getProductsJson())
+ })
+ }
+
+ Log.d(TAG, body.toString(4))
+
+ val req = MerchantRequest(POST, merchantConfig, "order", null, body,
+ Listener { onOrderCreated(it) },
+ ErrorListener { onNetworkError(it) }
+ )
+ queue.add(req)
+ }
+
+ private fun Order.getProductsJson(): JSONArray {
+ val contractProducts = products.map { ContractProduct(it) }
+ val productsStr = mapper.writeValueAsString(contractProducts)
+ return JSONArray(productsStr)
+ }
+
+ private fun onOrderCreated(orderResponse: JSONObject) {
+ val orderId = orderResponse.getString("order_id")
+ mPayment.value = mPayment.value!!.copy(orderId = orderId)
+ checkTimer.start()
+ }
+
+ private fun checkPayment(orderId: String) {
+ val merchantConfig = configManager.merchantConfig!!
+ val params = mapOf(
+ "order_id" to orderId,
+ "instance" to merchantConfig.instance
+ )
+
+ val req = MerchantRequest(GET, merchantConfig, "check-payment", params, null,
+ Listener { onPaymentChecked(it) },
+ ErrorListener { onNetworkError(it) })
+ queue.add(req)
+ }
+
+ /**
+ * Called when the /check-payment response gave a result.
+ */
+ private fun onPaymentChecked(checkPaymentResponse: JSONObject) {
+ val currentValue = requireNotNull(mPayment.value)
+ if (checkPaymentResponse.getBoolean("paid")) {
+ mPayment.value = currentValue.copy(paid = true)
+ checkTimer.cancel()
+ } else if (currentValue.talerPayUri == null) {
+ val talerPayUri = checkPaymentResponse.getString("taler_pay_uri")
+ mPayment.value = currentValue.copy(talerPayUri = talerPayUri)
+ }
+ }
+
+ private fun onNetworkError(volleyError: VolleyError) {
+ Log.e(PaymentManager::class.java.simpleName, volleyError.toString())
+ cancelPayment()
+ }
+
+ fun cancelPayment() {
+ mPayment.value = mPayment.value!!.copy(error = true)
+ checkTimer.cancel()
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/payment/PaymentSuccessFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/payment/PaymentSuccessFragment.kt
new file mode 100644
index 0000000..10d538d
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/payment/PaymentSuccessFragment.kt
@@ -0,0 +1,44 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.payment
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.navigation.fragment.findNavController
+import kotlinx.android.synthetic.main.fragment_payment_success.*
+import net.taler.merchantpos.R
+
+class PaymentSuccessFragment : Fragment() {
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_payment_success, container, false)
+ }
+
+ override fun onActivityCreated(savedInstanceState: Bundle?) {
+ super.onActivityCreated(savedInstanceState)
+ paymentButton.setOnClickListener {
+ findNavController().navigateUp()
+ }
+ }
+
+}
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/payment/ProcessPaymentFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/payment/ProcessPaymentFragment.kt
new file mode 100644
index 0000000..24f67f1
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/payment/ProcessPaymentFragment.kt
@@ -0,0 +1,96 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.payment
+
+import android.annotation.SuppressLint
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.navigation.fragment.findNavController
+import com.google.android.material.snackbar.BaseTransientBottomBar.LENGTH_LONG
+import kotlinx.android.synthetic.main.fragment_process_payment.*
+import net.taler.merchantpos.MainViewModel
+import net.taler.merchantpos.NfcManager.Companion.hasNfc
+import net.taler.merchantpos.QrCodeManager.makeQrCode
+import net.taler.merchantpos.R
+import net.taler.merchantpos.fadeIn
+import net.taler.merchantpos.fadeOut
+import net.taler.merchantpos.navigate
+import net.taler.merchantpos.payment.ProcessPaymentFragmentDirections.Companion.actionProcessPaymentToPaymentSuccess
+import net.taler.merchantpos.topSnackbar
+
+class ProcessPaymentFragment : Fragment() {
+
+ private val model: MainViewModel by activityViewModels()
+ private val paymentManager by lazy { model.paymentManager }
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_process_payment, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ val introRes =
+ if (hasNfc(requireContext())) R.string.payment_intro_nfc else R.string.payment_intro
+ payIntroView.setText(introRes)
+ paymentManager.payment.observe(viewLifecycleOwner, Observer { payment ->
+ onPaymentStateChanged(payment)
+ })
+ cancelPaymentButton.setOnClickListener {
+ onPaymentCancel()
+ }
+ }
+
+ private fun onPaymentStateChanged(payment: Payment) {
+ if (payment.error) {
+ topSnackbar(view!!, R.string.error_network, LENGTH_LONG)
+ findNavController().navigateUp()
+ return
+ }
+ if (payment.paid) {
+ model.orderManager.onOrderPaid(payment.order.id)
+ actionProcessPaymentToPaymentSuccess().navigate(findNavController())
+ return
+ }
+ payIntroView.fadeIn()
+ @SuppressLint("SetTextI18n")
+ amountView.text = "${payment.order.totalAsString} ${payment.currency}"
+ payment.orderId?.let {
+ orderRefView.text = getString(R.string.payment_order_ref, it)
+ orderRefView.fadeIn()
+ }
+ payment.talerPayUri?.let {
+ val qrcodeBitmap = makeQrCode(it)
+ qrcodeView.setImageBitmap(qrcodeBitmap)
+ qrcodeView.fadeIn()
+ progressBar.fadeOut()
+ }
+ }
+
+ private fun onPaymentCancel() {
+ paymentManager.cancelPayment()
+ findNavController().navigateUp()
+ topSnackbar(view!!, R.string.payment_canceled, LENGTH_LONG)
+ }
+
+}
diff --git a/merchant-terminal/src/main/res/color/button_bottom.xml b/merchant-terminal/src/main/res/color/button_bottom.xml
new file mode 100644
index 0000000..83363e9
--- /dev/null
+++ b/merchant-terminal/src/main/res/color/button_bottom.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+ <item android:color="@color/bottomButtons" android:state_enabled="true" />
+ <item android:alpha="0.12" android:color="?attr/colorOnSurface" />
+</selector>
diff --git a/merchant-terminal/src/main/res/drawable/ic_cash_refund.xml b/merchant-terminal/src/main/res/drawable/ic_cash_refund.xml
new file mode 100644
index 0000000..7359ca3
--- /dev/null
+++ b/merchant-terminal/src/main/res/drawable/ic_cash_refund.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="24dp"
+ android:height="24dp"
+ android:viewportWidth="24"
+ android:viewportHeight="24">
+ <path
+ android:fillColor="#000000"
+ android:pathData="M3,11H21V23H3V11M12,15A2,2 0 0,1 14,17A2,2 0 0,1 12,19A2,2 0 0,1 10,17A2,2 0 0,1 12,15M7,13A2,2 0 0,1 5,15V19A2,2 0 0,1 7,21H17A2,2 0 0,1 19,19V15A2,2 0 0,1 17,13H7M17,5V10H15.5V6.5H9.88L12.3,8.93L11.24,10L7,5.75L11.24,1.5L12.3,2.57L9.88,5H17Z" />
+</vector>
diff --git a/merchant-terminal/src/main/res/drawable/ic_check_circle.xml b/merchant-terminal/src/main/res/drawable/ic_check_circle.xml
new file mode 100644
index 0000000..61e1b5a
--- /dev/null
+++ b/merchant-terminal/src/main/res/drawable/ic_check_circle.xml
@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="24dp"
+ android:height="24dp"
+ android:alpha="0.56"
+ android:viewportWidth="24.0"
+ android:viewportHeight="24.0">
+ <path
+ android:fillColor="@color/green"
+ android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM10,17l-5,-5 1.41,-1.41L10,14.17l7.59,-7.59L19,8l-9,9z" />
+</vector>
diff --git a/merchant-terminal/src/main/res/drawable/ic_history_black_24dp.xml b/merchant-terminal/src/main/res/drawable/ic_history_black_24dp.xml
new file mode 100644
index 0000000..a61de1b
--- /dev/null
+++ b/merchant-terminal/src/main/res/drawable/ic_history_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="24dp"
+ android:height="24dp"
+ android:viewportWidth="24.0"
+ android:viewportHeight="24.0">
+ <path
+ android:fillColor="#FF000000"
+ android:pathData="M13,3c-4.97,0 -9,4.03 -9,9L1,12l3.89,3.89 0.07,0.14L9,12L6,12c0,-3.87 3.13,-7 7,-7s7,3.13 7,7 -3.13,7 -7,7c-1.93,0 -3.68,-0.79 -4.94,-2.06l-1.42,1.42C8.27,19.99 10.51,21 13,21c4.97,0 9,-4.03 9,-9s-4.03,-9 -9,-9zM12,8v5l4.28,2.54 0.72,-1.21 -3.5,-2.08L13.5,8L12,8z"/>
+</vector>
diff --git a/merchant-terminal/src/main/res/drawable/ic_launcher_background.xml b/merchant-terminal/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 0000000..2408e30
--- /dev/null
+++ b/merchant-terminal/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector
+ android:height="108dp"
+ android:width="108dp"
+ android:viewportHeight="108"
+ android:viewportWidth="108"
+ xmlns:android="http://schemas.android.com/apk/res/android">
+ <path android:fillColor="#008577"
+ android:pathData="M0,0h108v108h-108z"/>
+ <path android:fillColor="#00000000" android:pathData="M9,0L9,108"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M19,0L19,108"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M29,0L29,108"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M39,0L39,108"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M49,0L49,108"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M59,0L59,108"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M69,0L69,108"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M79,0L79,108"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M89,0L89,108"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M99,0L99,108"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M0,9L108,9"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M0,19L108,19"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M0,29L108,29"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M0,39L108,39"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M0,49L108,49"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M0,59L108,59"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M0,69L108,69"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M0,79L108,79"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M0,89L108,89"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M0,99L108,99"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M19,29L89,29"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M19,39L89,39"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M19,49L89,49"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M19,59L89,59"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M19,69L89,69"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M19,79L89,79"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M29,19L29,89"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M39,19L39,89"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M49,19L49,89"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M59,19L59,89"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M69,19L69,89"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+ <path android:fillColor="#00000000" android:pathData="M79,19L79,89"
+ android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+</vector>
diff --git a/merchant-terminal/src/main/res/drawable/ic_menu_manage.xml b/merchant-terminal/src/main/res/drawable/ic_menu_manage.xml
new file mode 100644
index 0000000..a0e423c
--- /dev/null
+++ b/merchant-terminal/src/main/res/drawable/ic_menu_manage.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="24dp"
+ android:height="24dp"
+ android:viewportWidth="24.0"
+ android:viewportHeight="24.0">
+ <path
+ android:fillColor="#FF000000"
+ android:pathData="M22.7,19l-9.1,-9.1c0.9,-2.3 0.4,-5 -1.5,-6.9 -2,-2 -5,-2.4 -7.4,-1.3L9,6 6,9 1.6,4.7C0.4,7.1 0.9,10.1 2.9,12.1c1.9,1.9 4.6,2.4 6.9,1.5l9.1,9.1c0.4,0.4 1,0.4 1.4,0l2.3,-2.3c0.5,-0.4 0.5,-1.1 0.1,-1.4z"/>
+</vector> \ No newline at end of file
diff --git a/merchant-terminal/src/main/res/drawable/ic_move_money_24dp.xml b/merchant-terminal/src/main/res/drawable/ic_move_money_24dp.xml
new file mode 100644
index 0000000..349f48f
--- /dev/null
+++ b/merchant-terminal/src/main/res/drawable/ic_move_money_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="24dp"
+ android:height="24dp"
+ android:viewportWidth="24.0"
+ android:viewportHeight="24.0">
+ <path
+ android:fillColor="#FF000000"
+ android:pathData="M19,3L4.99,3c-1.11,0 -1.98,0.9 -1.98,2L3,19c0,1.1 0.88,2 1.99,2L19,21c1.1,0 2,-0.9 2,-2L21,5c0,-1.1 -0.9,-2 -2,-2zM19,15h-4c0,1.66 -1.35,3 -3,3s-3,-1.34 -3,-3L4.99,15L4.99,5L19,5v10zM16,10h-2L14,7h-4v3L8,10l4,4 4,-4z"/>
+</vector>
diff --git a/merchant-terminal/src/main/res/drawable/selectable_background.xml b/merchant-terminal/src/main/res/drawable/selectable_background.xml
new file mode 100644
index 0000000..b82de92
--- /dev/null
+++ b/merchant-terminal/src/main/res/drawable/selectable_background.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+ <item android:drawable="@color/selectedBackground" android:state_activated="true" />
+ <item android:drawable="@android:color/transparent" />
+</selector> \ No newline at end of file
diff --git a/merchant-terminal/src/main/res/drawable/side_nav_bar.xml b/merchant-terminal/src/main/res/drawable/side_nav_bar.xml
new file mode 100644
index 0000000..50dc048
--- /dev/null
+++ b/merchant-terminal/src/main/res/drawable/side_nav_bar.xml
@@ -0,0 +1,9 @@
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+ android:shape="rectangle">
+ <gradient
+ android:angle="135"
+ android:centerColor="@color/colorPrimaryDark"
+ android:endColor="@color/colorPrimaryDark"
+ android:startColor="@color/colorPrimary"
+ android:type="linear"/>
+</shape> \ No newline at end of file
diff --git a/merchant-terminal/src/main/res/layout/activity_main.xml b/merchant-terminal/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..6523caa
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/activity_main.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.drawerlayout.widget.DrawerLayout
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:id="@+id/drawer_layout"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ android:fitsSystemWindows="true"
+ tools:openDrawer="start">
+
+ <include
+ layout="@layout/app_bar_main"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"/>
+
+ <com.google.android.material.navigation.NavigationView
+ android:id="@+id/nav_view"
+ android:layout_width="wrap_content"
+ android:layout_height="match_parent"
+ android:layout_gravity="start"
+ android:fitsSystemWindows="true"
+ app:menu="@menu/activity_main_drawer"
+ app:headerLayout="@layout/nav_header_main" />
+
+</androidx.drawerlayout.widget.DrawerLayout>
diff --git a/merchant-terminal/src/main/res/layout/app_bar_main.xml b/merchant-terminal/src/main/res/layout/app_bar_main.xml
new file mode 100644
index 0000000..0254c71
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/app_bar_main.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".MainActivity">
+
+ <com.google.android.material.appbar.AppBarLayout
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:theme="@style/AppTheme.AppBarOverlay">
+
+ <androidx.appcompat.widget.Toolbar
+ android:id="@+id/toolbar"
+ android:layout_width="match_parent"
+ android:layout_height="?attr/actionBarSize"
+ android:background="?attr/colorPrimary"
+ app:popupTheme="@style/AppTheme.PopupOverlay" />
+
+ </com.google.android.material.appbar.AppBarLayout>
+
+ <androidx.fragment.app.FragmentContainerView
+ android:id="@+id/navHostFragment"
+ android:name="androidx.navigation.fragment.NavHostFragment"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ app:defaultNavHost="true"
+ app:layout_insetEdge="top"
+ app:layout_behavior="@string/appbar_scrolling_view_behavior"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintLeft_toLeftOf="parent"
+ app:layout_constraintRight_toRightOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ app:navGraph="@navigation/nav_graph" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_categories.xml b/merchant-terminal/src/main/res/layout/fragment_categories.xml
new file mode 100644
index 0000000..a90585f
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_categories.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ android:layout_width="match_parent"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_marginStart="8dp"
+ android:layout_marginEnd="8dp"
+ android:layout_height="match_parent">
+
+ <androidx.recyclerview.widget.RecyclerView
+ android:id="@+id/categoriesList"
+ android:layout_width="0dp"
+ tools:listitem="@layout/list_item_category"
+ android:layout_height="0dp"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent" />
+
+ <ProgressBar
+ android:id="@+id/progressBar"
+ style="?android:attr/progressBarStyleLarge"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_config_fetcher.xml b/merchant-terminal/src/main/res/layout/fragment_config_fetcher.xml
new file mode 100644
index 0000000..af7dcaf
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_config_fetcher.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ android:layout_margin="16dp">
+
+ <TextView
+ android:id="@+id/titleView"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:text="@string/config_fetching"
+ android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent" />
+
+ <ProgressBar
+ android:id="@+id/progressBar"
+ style="?android:attr/progressBarStyleLarge"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/titleView" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_merchant_config.xml b/merchant-terminal/src/main/res/layout/fragment_merchant_config.xml
new file mode 100644
index 0000000..2541887
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_merchant_config.xml
@@ -0,0 +1,152 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ android:fillViewport="true">
+
+ <androidx.constraintlayout.widget.ConstraintLayout
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ tools:context=".config.MerchantConfigFragment">
+
+ <com.google.android.material.textfield.TextInputLayout
+ android:id="@+id/configUrlView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:hint="@string/config_url"
+ app:boxBackgroundColor="@android:color/transparent"
+ app:boxBackgroundMode="outline"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent">
+
+ <com.google.android.material.textfield.TextInputEditText
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:inputType="textUri" />
+
+ </com.google.android.material.textfield.TextInputLayout>
+
+ <com.google.android.material.textfield.TextInputLayout
+ android:id="@+id/usernameView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:hint="@string/config_username"
+ app:boxBackgroundColor="@android:color/transparent"
+ app:boxBackgroundMode="outline"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/configUrlView">
+
+ <com.google.android.material.textfield.TextInputEditText
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:inputType="text" />
+
+ </com.google.android.material.textfield.TextInputLayout>
+
+ <com.google.android.material.textfield.TextInputLayout
+ android:id="@+id/passwordView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:hint="@string/config_password"
+ app:boxBackgroundColor="@android:color/transparent"
+ app:boxBackgroundMode="outline"
+ app:endIconMode="password_toggle"
+ app:layout_constraintEnd_toStartOf="@+id/forgetPasswordButton"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/usernameView">
+
+ <com.google.android.material.textfield.TextInputEditText
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:inputType="textWebPassword" />
+
+ </com.google.android.material.textfield.TextInputLayout>
+
+ <Button
+ android:id="@+id/forgetPasswordButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:text="@string/config_forget_password"
+ android:visibility="gone"
+ app:layout_constraintBottom_toBottomOf="@+id/passwordView"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toTopOf="@+id/passwordView"
+ tools:visibility="visible" />
+
+ <CheckBox
+ android:id="@+id/savePasswordCheckBox"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="16dp"
+ android:layout_marginTop="16dp"
+ android:layout_marginBottom="16dp"
+ android:checked="true"
+ android:text="@string/config_save_password"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toStartOf="@+id/okButton"
+ app:layout_constraintHorizontal_chainStyle="spread_inside"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/passwordView"
+ app:layout_constraintVertical_bias="0.0" />
+
+ <com.google.android.material.button.MaterialButton
+ android:id="@+id/okButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:text="@string/config_ok"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toEndOf="@+id/savePasswordCheckBox"
+ app:layout_constraintTop_toBottomOf="@+id/passwordView"
+ app:layout_constraintVertical_bias="0.0" />
+
+ <ProgressBar
+ android:id="@+id/progressBar"
+ style="?android:attr/progressBarStyle"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:visibility="invisible"
+ app:layout_constraintBottom_toBottomOf="@+id/okButton"
+ app:layout_constraintEnd_toEndOf="@+id/okButton"
+ app:layout_constraintStart_toStartOf="@+id/okButton"
+ app:layout_constraintTop_toTopOf="@+id/okButton"
+ tools:visibility="visible" />
+
+ <TextView
+ android:id="@+id/configDocsView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:text="@string/config_docs"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/okButton" />
+
+ </androidx.constraintlayout.widget.ConstraintLayout>
+
+</ScrollView>
diff --git a/merchant-terminal/src/main/res/layout/fragment_merchant_history.xml b/merchant-terminal/src/main/res/layout/fragment_merchant_history.xml
new file mode 100644
index 0000000..21e6f08
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_merchant_history.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.swiperefreshlayout.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ android:id="@+id/swipeRefresh"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent">
+
+ <androidx.recyclerview.widget.RecyclerView
+ android:id="@+id/list_history"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ android:scrollbars="vertical" />
+
+</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_order.xml b/merchant-terminal/src/main/res/layout/fragment_order.xml
new file mode 100644
index 0000000..4af9c77
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_order.xml
@@ -0,0 +1,138 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent">
+
+ <androidx.fragment.app.FragmentContainerView
+ android:id="@+id/fragment1"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:layout_marginBottom="8dp"
+ app:layout_constraintBottom_toTopOf="@+id/restartButton"
+ app:layout_constraintEnd_toStartOf="@+id/guideline1"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:layout="@layout/fragment_order_state" />
+
+ <androidx.constraintlayout.widget.Guideline
+ android:id="@+id/guideline1"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:orientation="vertical"
+ app:layout_constraintGuide_percent="0.25" />
+
+ <androidx.fragment.app.FragmentContainerView
+ android:id="@+id/fragment2"
+ android:name="net.taler.merchantpos.order.ProductsFragment"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:layout_marginBottom="8dp"
+ app:layout_constraintBottom_toTopOf="@+id/restartButton"
+ app:layout_constraintEnd_toStartOf="@+id/guideline2"
+ app:layout_constraintStart_toStartOf="@+id/guideline1"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:layout="@layout/fragment_products" />
+
+ <androidx.constraintlayout.widget.Guideline
+ android:id="@+id/guideline2"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:orientation="vertical"
+ app:layout_constraintGuide_percent="0.75" />
+
+ <androidx.fragment.app.FragmentContainerView
+ android:id="@+id/fragment3"
+ android:name="net.taler.merchantpos.order.CategoriesFragment"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:layout_marginBottom="8dp"
+ app:layout_constraintBottom_toTopOf="@+id/restartButton"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="@+id/guideline2"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:layout="@layout/fragment_categories" />
+
+ <Button
+ android:id="@+id/restartButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="8dp"
+ android:backgroundTint="@color/button_bottom"
+ android:text="@string/order_restart"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintStart_toStartOf="parent" />
+
+ <Button
+ android:id="@+id/plusButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="16dp"
+ android:minWidth="48dp"
+ android:text="+1"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintStart_toEndOf="@+id/minusButton"
+ tools:ignore="HardcodedText" />
+
+ <Button
+ android:id="@+id/minusButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="32dp"
+ android:minWidth="48dp"
+ android:text="-1"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintStart_toEndOf="@+id/restartButton"
+ tools:ignore="HardcodedText" />
+
+ <Button
+ android:id="@+id/prevButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="32dp"
+ android:backgroundTint="@color/button_bottom"
+ android:text="@string/order_previous"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintStart_toEndOf="@+id/plusButton" />
+
+ <Button
+ android:id="@+id/nextButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="16dp"
+ android:backgroundTint="@color/button_bottom"
+ android:text="@string/order_next"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintStart_toEndOf="@+id/prevButton" />
+
+ <Button
+ android:id="@+id/completeButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="32dp"
+ android:layout_marginEnd="8dp"
+ android:backgroundTint="@color/button_bottom"
+ android:text="@string/order_complete"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="1.0"
+ app:layout_constraintStart_toEndOf="@+id/nextButton" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_order_state.xml b/merchant-terminal/src/main/res/layout/fragment_order_state.xml
new file mode 100644
index 0000000..7d6b258
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_order_state.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent">
+
+ <androidx.recyclerview.widget.RecyclerView
+ android:id="@+id/orderList"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ app:layout_constraintBottom_toTopOf="@+id/totalView"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:listitem="@layout/list_item_order" />
+
+ <TextView
+ android:id="@+id/totalView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:background="@color/highlightedBackground"
+ android:elevation="2dp"
+ android:gravity="center_vertical|end"
+ android:padding="8dp"
+ android:textColor="?android:textColorPrimary"
+ android:textSize="16sp"
+ android:visibility="invisible"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/orderList"
+ tools:text="Total: 23.75 TESTKUDOS"
+ tools:visibility="visible" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_payment_success.xml b/merchant-terminal/src/main/res/layout/fragment_payment_success.xml
new file mode 100644
index 0000000..1bc9be7
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_payment_success.xml
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".payment.PaymentSuccessFragment">
+
+ <ImageView
+ android:id="@+id/paymentIcon"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:layout_margin="16dp"
+ android:src="@drawable/ic_check_circle"
+ app:layout_constraintBottom_toTopOf="@+id/paymentLabel"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="0.5"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintVertical_chainStyle="spread_inside"
+ tools:ignore="ContentDescription" />
+
+ <TextView
+ android:id="@+id/paymentLabel"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:layout_margin="16dp"
+ android:gravity="center_horizontal|top"
+ android:text="@string/payment_received"
+ android:textColor="@color/green"
+ app:autoSizeMaxTextSize="42sp"
+ app:autoSizeTextType="uniform"
+ app:layout_constraintBottom_toTopOf="@+id/paymentButton"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/paymentIcon" />
+
+ <androidx.constraintlayout.widget.Guideline
+ android:id="@+id/guidelineLeft"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:orientation="vertical"
+ app:layout_constraintGuide_percent="0.25" />
+
+ <androidx.constraintlayout.widget.Guideline
+ android:id="@+id/guidelineRight"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:orientation="vertical"
+ app:layout_constraintGuide_percent="0.75" />
+
+ <Button
+ android:id="@+id/paymentButton"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:text="@string/payment_back_button"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toStartOf="@+id/guidelineRight"
+ app:layout_constraintStart_toStartOf="@+id/guidelineLeft" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_process_payment.xml b/merchant-terminal/src/main/res/layout/fragment_process_payment.xml
new file mode 100644
index 0000000..6cd8ea1
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_process_payment.xml
@@ -0,0 +1,110 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".payment.ProcessPaymentFragment">
+
+ <ImageView
+ android:id="@+id/qrcodeView"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:layout_margin="32dp"
+ android:visibility="invisible"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toStartOf="@+id/guideline"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:ignore="ContentDescription"
+ tools:src="@tools:sample/avatars"
+ tools:visibility="visible" />
+
+ <ProgressBar
+ android:id="@+id/progressBar"
+ style="?android:attr/progressBarStyleLarge"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ app:layout_constraintBottom_toBottomOf="@+id/qrcodeView"
+ app:layout_constraintEnd_toEndOf="@+id/qrcodeView"
+ app:layout_constraintStart_toStartOf="@+id/qrcodeView"
+ app:layout_constraintTop_toTopOf="@+id/qrcodeView" />
+
+ <androidx.constraintlayout.widget.Guideline
+ android:id="@+id/guideline"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:orientation="vertical"
+ app:layout_constraintGuide_percent="0.54" />
+
+ <TextView
+ android:id="@+id/payIntroView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:text="@string/payment_intro_nfc"
+ android:textAlignment="center"
+ android:textSize="24sp"
+ android:visibility="invisible"
+ app:layout_constraintBottom_toTopOf="@+id/amountView"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="@+id/guideline"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintVertical_chainStyle="spread"
+ tools:visibility="visible" />
+
+ <TextView
+ android:id="@+id/amountView"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+ app:layout_constraintBottom_toTopOf="@+id/orderRefView"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="@+id/guideline"
+ app:layout_constraintTop_toBottomOf="@+id/payIntroView"
+ tools:text="10.49 TESTKUDOS" />
+
+ <TextView
+ android:id="@+id/orderRefView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:textAlignment="center"
+ android:visibility="invisible"
+ app:layout_constraintBottom_toTopOf="@id/cancelPaymentButton"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="@+id/guideline"
+ app:layout_constraintTop_toBottomOf="@+id/amountView"
+ tools:text="@string/payment_order_ref"
+ tools:visibility="visible" />
+
+ <Button
+ android:id="@+id/cancelPaymentButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:backgroundTint="@color/red"
+ android:text="@string/payment_cancel"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="0.0"
+ app:layout_constraintStart_toStartOf="@+id/guideline" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_products.xml b/merchant-terminal/src/main/res/layout/fragment_products.xml
new file mode 100644
index 0000000..f0e86e7
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_products.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ android:layout_width="match_parent"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_height="match_parent">
+
+ <androidx.recyclerview.widget.RecyclerView
+ android:id="@+id/productsList"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ tools:listitem="@layout/list_item_product" />
+
+ <ProgressBar
+ android:id="@+id/progressBar"
+ style="?android:attr/progressBarStyleLarge"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_refund.xml b/merchant-terminal/src/main/res/layout/fragment_refund.xml
new file mode 100644
index 0000000..5a78cdd
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_refund.xml
@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".history.RefundFragment">
+
+ <com.google.android.material.textfield.TextInputLayout
+ android:id="@+id/amountView"
+ style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:hint="@string/refund_amount"
+ app:boxBackgroundMode="outline"
+ app:endIconMode="clear_text"
+ app:endIconTint="?attr/colorControlNormal"
+ app:layout_constraintBottom_toTopOf="@+id/reasonView"
+ app:layout_constraintEnd_toStartOf="@+id/currencyView"
+ app:layout_constraintHorizontal_chainStyle="packed"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintVertical_chainStyle="spread">
+
+ <com.google.android.material.textfield.TextInputEditText
+ android:id="@+id/amountInputView"
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:ems="6"
+ android:inputType="numberDecimal"
+ tools:text="23.42" />
+
+ </com.google.android.material.textfield.TextInputLayout>
+
+ <TextView
+ android:id="@+id/currencyView"
+ android:layout_width="wrap_content"
+ android:layout_height="0dp"
+ android:layout_marginStart="8dp"
+ android:gravity="start|center_vertical"
+ app:layout_constraintBottom_toBottomOf="@+id/amountView"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toEndOf="@+id/amountView"
+ app:layout_constraintTop_toTopOf="@+id/amountView"
+ tools:text="TESTKUDOS" />
+
+ <com.google.android.material.textfield.TextInputLayout
+ android:id="@+id/reasonView"
+ style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:hint="@string/refund_reason"
+ app:endIconMode="clear_text"
+ app:layout_constraintBottom_toTopOf="@+id/abortButton"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="0.5"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/amountView">
+
+ <com.google.android.material.textfield.TextInputEditText
+ android:id="@+id/reasonInputView"
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:inputType="textAutoComplete|textAutoCorrect|textMultiLine" />
+
+ </com.google.android.material.textfield.TextInputLayout>
+
+ <Button
+ android:id="@+id/abortButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:backgroundTint="@color/red"
+ android:text="@string/refund_abort"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toStartOf="@+id/refundButton"
+ app:layout_constraintHorizontal_bias="0.76"
+ app:layout_constraintHorizontal_chainStyle="spread_inside"
+ app:layout_constraintStart_toStartOf="parent" />
+
+ <Button
+ android:id="@+id/refundButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:backgroundTint="@color/green"
+ android:text="@string/refund_confirm"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="0.5"
+ app:layout_constraintStart_toEndOf="@+id/abortButton" />
+
+ <ProgressBar
+ android:id="@+id/progressBar"
+ style="?android:attr/progressBarStyle"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:visibility="invisible"
+ app:layout_constraintBottom_toBottomOf="@+id/refundButton"
+ app:layout_constraintEnd_toEndOf="@+id/refundButton"
+ app:layout_constraintStart_toStartOf="@+id/refundButton"
+ app:layout_constraintTop_toTopOf="@+id/refundButton"
+ tools:visibility="visible" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_refund_uri.xml b/merchant-terminal/src/main/res/layout/fragment_refund_uri.xml
new file mode 100644
index 0000000..8447d28
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_refund_uri.xml
@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".payment.ProcessPaymentFragment">
+
+ <ImageView
+ android:id="@+id/refundQrcodeView"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:layout_margin="32dp"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toStartOf="@+id/guideline"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:ignore="ContentDescription"
+ tools:src="@tools:sample/avatars" />
+
+ <androidx.constraintlayout.widget.Guideline
+ android:id="@+id/guideline"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:orientation="vertical"
+ app:layout_constraintGuide_percent="0.54" />
+
+ <TextView
+ android:id="@+id/refundIntroView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:text="@string/refund_intro_nfc"
+ android:textAlignment="center"
+ android:textSize="24sp"
+ app:layout_constraintBottom_toTopOf="@+id/refundAmountView"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="@+id/guideline"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintVertical_chainStyle="spread" />
+
+ <TextView
+ android:id="@+id/refundAmountView"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+ app:layout_constraintBottom_toTopOf="@+id/refundRefView"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="@+id/guideline"
+ app:layout_constraintTop_toBottomOf="@+id/refundIntroView"
+ tools:text="10.49 TESTKUDOS" />
+
+ <TextView
+ android:id="@+id/refundRefView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:textAlignment="center"
+ app:layout_constraintBottom_toTopOf="@id/cancelRefundButton"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="@+id/guideline"
+ app:layout_constraintTop_toBottomOf="@+id/refundAmountView"
+ tools:text="@string/refund_order_ref" />
+
+ <Button
+ android:id="@+id/cancelRefundButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_margin="16dp"
+ android:backgroundTint="@color/red"
+ android:text="@string/refund_abort"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="0.0"
+ app:layout_constraintStart_toStartOf="@+id/guideline" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/list_item_category.xml b/merchant-terminal/src/main/res/layout/list_item_category.xml
new file mode 100644
index 0000000..cbdbd34
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/list_item_category.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content">
+
+ <Button
+ android:id="@+id/button"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:text="Snacks" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/list_item_history.xml b/merchant-terminal/src/main/res/layout/list_item_history.xml
new file mode 100644
index 0000000..fe485ba
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/list_item_history.xml
@@ -0,0 +1,97 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:padding="16dp">
+
+ <TextView
+ android:id="@+id/orderSummaryView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:textColor="?android:attr/textColorPrimary"
+ android:textSize="20sp"
+ android:textStyle="bold"
+ app:layout_constraintEnd_toStartOf="@+id/orderAmountView"
+ app:layout_constraintHorizontal_bias="1.0"
+ app:layout_constraintHorizontal_chainStyle="spread_inside"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:text="One Cappuccino or another name that can be so long that it spans more than one line" />
+
+ <TextView
+ android:id="@+id/orderAmountView"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="8dp"
+ android:layout_marginEnd="16dp"
+ android:textColor="?android:attr/textColorPrimary"
+ android:textSize="20sp"
+ android:textStyle="bold"
+ app:layout_constraintBottom_toBottomOf="@+id/orderSummaryView"
+ app:layout_constraintEnd_toStartOf="@+id/refundButton"
+ app:layout_constraintStart_toEndOf="@+id/orderSummaryView"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintVertical_bias="0.0"
+ tools:text="23.42 TESTKUDOS" />
+
+ <TextView
+ android:id="@+id/orderIdView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginTop="8dp"
+ android:text="@string/history_ref_no"
+ android:textAllCaps="false"
+ android:textSize="20sp"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toStartOf="@+id/orderTimeView"
+ app:layout_constraintHorizontal_bias="0.5"
+ app:layout_constraintHorizontal_chainStyle="spread_inside"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/orderSummaryView" />
+
+ <TextView
+ android:id="@+id/orderTimeView"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="8dp"
+ android:layout_marginTop="8dp"
+ android:layout_marginEnd="16dp"
+ android:textSize="20sp"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toStartOf="@+id/refundButton"
+ app:layout_constraintStart_toEndOf="@+id/orderIdView"
+ app:layout_constraintTop_toBottomOf="@+id/orderAmountView"
+ app:layout_constraintVertical_bias="1.0"
+ tools:text="3 hrs. ago" />
+
+ <ImageButton
+ android:id="@+id/refundButton"
+ android:layout_width="48dp"
+ android:layout_height="48dp"
+ android:backgroundTint="?colorPrimary"
+ android:contentDescription="@string/history_refund"
+ android:tint="?attr/colorOnPrimary"
+ android:visibility="gone"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ app:srcCompat="@drawable/ic_cash_refund" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/list_item_order.xml b/merchant-terminal/src/main/res/layout/list_item_order.xml
new file mode 100644
index 0000000..f88364d
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/list_item_order.xml
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:background="@drawable/selectable_background"
+ android:minHeight="48dp"
+ android:padding="8dp">
+
+ <TextView
+ android:id="@+id/quantity"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:gravity="end"
+ android:minWidth="24dp"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="@+id/name"
+ app:layout_constraintVertical_bias="0.0"
+ tools:text="31" />
+
+ <TextView
+ android:id="@+id/name"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="8dp"
+ android:layout_marginEnd="8dp"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toStartOf="@+id/price"
+ app:layout_constraintStart_toEndOf="@+id/quantity"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:text="An order product item that in some cases could have a very long name" />
+
+ <TextView
+ android:id="@+id/price"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toTopOf="@+id/name"
+ app:layout_constraintVertical_bias="0.0"
+ tools:text="23.42" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/list_item_product.xml b/merchant-terminal/src/main/res/layout/list_item_product.xml
new file mode 100644
index 0000000..1037bef
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/list_item_product.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<com.google.android.material.card.MaterialCardView xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:layout_margin="4dp"
+ android:clickable="true"
+ android:focusable="true"
+ app:cardUseCompatPadding="true">
+
+ <androidx.constraintlayout.widget.ConstraintLayout
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:padding="8dp">
+
+ <TextView
+ android:id="@+id/name"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:textColor="?android:textColorPrimary"
+ android:textStyle="bold"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:text="Steak and two Eggs" />
+
+ <TextView
+ android:id="@+id/price"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginTop="8dp"
+ android:textColor="?android:textColorSecondary"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/name"
+ tools:text="7.95" />
+
+ </androidx.constraintlayout.widget.ConstraintLayout>
+
+</com.google.android.material.card.MaterialCardView> \ No newline at end of file
diff --git a/merchant-terminal/src/main/res/layout/nav_header_main.xml b/merchant-terminal/src/main/res/layout/nav_header_main.xml
new file mode 100644
index 0000000..14bbd51
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/nav_header_main.xml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="@dimen/nav_header_height"
+ android:background="@drawable/side_nav_bar"
+ android:gravity="bottom"
+ android:orientation="vertical"
+ android:paddingLeft="@dimen/activity_horizontal_margin"
+ android:paddingTop="@dimen/activity_vertical_margin"
+ android:paddingRight="@dimen/activity_horizontal_margin"
+ android:paddingBottom="@dimen/activity_vertical_margin"
+ android:theme="@style/AppTheme">
+
+ <ImageView
+ android:id="@+id/imageView"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:paddingTop="@dimen/nav_header_vertical_spacing"
+ app:srcCompat="@mipmap/ic_taler_logo_round"
+ tools:ignore="ContentDescription" />
+
+ <TextView
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:paddingTop="@dimen/nav_header_vertical_spacing"
+ android:text="@string/project_name"
+ android:textAppearance="@style/TextAppearance.AppCompat.Body1"
+ android:textColor="#FFF" />
+
+ <TextView
+ android:id="@+id/textView"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="@string/app_name_short"
+ android:textColor="#FFF" />
+
+</LinearLayout>
diff --git a/merchant-terminal/src/main/res/menu/activity_main_drawer.xml b/merchant-terminal/src/main/res/menu/activity_main_drawer.xml
new file mode 100644
index 0000000..1303605
--- /dev/null
+++ b/merchant-terminal/src/main/res/menu/activity_main_drawer.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:tools="http://schemas.android.com/tools"
+ tools:showIn="navigation_view">
+
+ <group android:checkableBehavior="single">
+ <item
+ android:id="@+id/nav_order"
+ android:icon="@drawable/ic_move_money_24dp"
+ android:title="@string/menu_order" />
+ <item
+ android:id="@+id/nav_history"
+ android:icon="@drawable/ic_history_black_24dp"
+ android:title="@string/menu_history" />
+ <item
+ android:id="@+id/nav_settings"
+ android:icon="@drawable/ic_menu_manage"
+ android:title="@string/menu_settings" />
+ </group>
+</menu>
diff --git a/merchant-terminal/src/main/res/mipmap-anydpi-v26/ic_taler_logo.xml b/merchant-terminal/src/main/res/mipmap-anydpi-v26/ic_taler_logo.xml
new file mode 100644
index 0000000..c4a603d
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-anydpi-v26/ic_taler_logo.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+ <background android:drawable="@drawable/ic_launcher_background"/>
+ <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon> \ No newline at end of file
diff --git a/merchant-terminal/src/main/res/mipmap-anydpi-v26/ic_taler_logo_round.xml b/merchant-terminal/src/main/res/mipmap-anydpi-v26/ic_taler_logo_round.xml
new file mode 100644
index 0000000..c4a603d
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-anydpi-v26/ic_taler_logo_round.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+ <background android:drawable="@drawable/ic_launcher_background"/>
+ <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon> \ No newline at end of file
diff --git a/merchant-terminal/src/main/res/mipmap-hdpi/ic_launcher_foreground.png b/merchant-terminal/src/main/res/mipmap-hdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..75273ec
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-hdpi/ic_launcher_foreground.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-hdpi/ic_taler_logo.png b/merchant-terminal/src/main/res/mipmap-hdpi/ic_taler_logo.png
new file mode 100644
index 0000000..eaecede
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-hdpi/ic_taler_logo.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-hdpi/ic_taler_logo_round.png b/merchant-terminal/src/main/res/mipmap-hdpi/ic_taler_logo_round.png
new file mode 100644
index 0000000..caa2a3e
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-hdpi/ic_taler_logo_round.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-mdpi/ic_launcher_foreground.png b/merchant-terminal/src/main/res/mipmap-mdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..a450287
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-mdpi/ic_launcher_foreground.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-mdpi/ic_taler_logo.png b/merchant-terminal/src/main/res/mipmap-mdpi/ic_taler_logo.png
new file mode 100644
index 0000000..e1f7374
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-mdpi/ic_taler_logo.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-mdpi/ic_taler_logo_round.png b/merchant-terminal/src/main/res/mipmap-mdpi/ic_taler_logo_round.png
new file mode 100644
index 0000000..e92d2d3
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-mdpi/ic_taler_logo_round.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png b/merchant-terminal/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..a5e875c
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-xhdpi/ic_taler_logo.png b/merchant-terminal/src/main/res/mipmap-xhdpi/ic_taler_logo.png
new file mode 100644
index 0000000..5ca4409
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-xhdpi/ic_taler_logo.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-xhdpi/ic_taler_logo_round.png b/merchant-terminal/src/main/res/mipmap-xhdpi/ic_taler_logo_round.png
new file mode 100644
index 0000000..12b9056
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-xhdpi/ic_taler_logo_round.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png b/merchant-terminal/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..e9d1fc9
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-xxhdpi/ic_taler_logo.png b/merchant-terminal/src/main/res/mipmap-xxhdpi/ic_taler_logo.png
new file mode 100644
index 0000000..a786efa
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-xxhdpi/ic_taler_logo.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-xxhdpi/ic_taler_logo_round.png b/merchant-terminal/src/main/res/mipmap-xxhdpi/ic_taler_logo_round.png
new file mode 100644
index 0000000..b22a84e
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-xxhdpi/ic_taler_logo_round.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png b/merchant-terminal/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..f8037d1
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-xxxhdpi/ic_taler_logo.png b/merchant-terminal/src/main/res/mipmap-xxxhdpi/ic_taler_logo.png
new file mode 100644
index 0000000..0e9df6a
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-xxxhdpi/ic_taler_logo.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/mipmap-xxxhdpi/ic_taler_logo_round.png b/merchant-terminal/src/main/res/mipmap-xxxhdpi/ic_taler_logo_round.png
new file mode 100644
index 0000000..6bef9bd
--- /dev/null
+++ b/merchant-terminal/src/main/res/mipmap-xxxhdpi/ic_taler_logo_round.png
Binary files differ
diff --git a/merchant-terminal/src/main/res/navigation/nav_graph.xml b/merchant-terminal/src/main/res/navigation/nav_graph.xml
new file mode 100644
index 0000000..2e337f2
--- /dev/null
+++ b/merchant-terminal/src/main/res/navigation/nav_graph.xml
@@ -0,0 +1,137 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:id="@+id/nav_graph"
+ app:startDestination="@+id/nav_order"
+ tools:ignore="UnusedNavigation">
+
+ <fragment
+ android:id="@+id/nav_order"
+ android:name="net.taler.merchantpos.order.OrderFragment"
+ android:label=""
+ tools:layout="@layout/fragment_order">
+ <action
+ android:id="@+id/action_order_to_merchantSettings"
+ app:destination="@+id/nav_settings"
+ app:launchSingleTop="true"
+ app:popUpTo="@+id/nav_graph"
+ app:popUpToInclusive="true" />
+ <action
+ android:id="@+id/action_order_self"
+ app:destination="@+id/nav_order"
+ app:popUpTo="@+id/nav_graph" />
+ <action
+ android:id="@+id/action_order_to_processPayment"
+ app:destination="@+id/processPayment" />
+ </fragment>
+
+ <fragment
+ android:id="@+id/processPayment"
+ android:name="net.taler.merchantpos.payment.ProcessPaymentFragment"
+ android:label="@string/payment_process_label"
+ tools:layout="@layout/fragment_process_payment">
+ <action
+ android:id="@+id/action_processPayment_to_paymentSuccess"
+ app:destination="@+id/paymentSuccess"
+ app:popUpTo="@id/nav_order" />
+ </fragment>
+
+ <fragment
+ android:id="@+id/nav_history"
+ android:name="net.taler.merchantpos.history.MerchantHistoryFragment"
+ android:label="@string/history_label"
+ tools:layout="@layout/fragment_merchant_history">
+ <action
+ android:id="@+id/action_nav_history_to_refundFragment"
+ app:destination="@id/refundFragment" />
+ </fragment>
+
+ <fragment
+ android:id="@+id/refundFragment"
+ android:name="net.taler.merchantpos.history.RefundFragment"
+ android:label="@string/history_refund"
+ tools:layout="@layout/fragment_refund">
+ <action
+ android:id="@+id/action_refundFragment_to_refundUriFragment"
+ app:destination="@id/refundUriFragment" />
+ </fragment>
+
+ <fragment
+ android:id="@+id/refundUriFragment"
+ android:name="net.taler.merchantpos.history.RefundUriFragment"
+ android:label="@string/history_refund"
+ tools:layout="@layout/fragment_refund_uri" />
+
+ <fragment
+ android:id="@+id/nav_settings"
+ android:name="net.taler.merchantpos.config.MerchantConfigFragment"
+ android:label="@string/config_label"
+ tools:layout="@layout/fragment_merchant_config">
+ <action
+ android:id="@+id/action_settings_to_order"
+ app:destination="@+id/nav_order"
+ app:launchSingleTop="true"
+ app:popUpTo="@+id/nav_graph"
+ app:popUpToInclusive="true" />
+ </fragment>
+
+ <fragment
+ android:id="@+id/configFetcher"
+ android:name="net.taler.merchantpos.config.ConfigFetcherFragment"
+ android:label="@string/config_fetching_label"
+ tools:layout="@layout/fragment_config_fetcher">
+ <action
+ android:id="@+id/action_configFetcher_to_merchantSettings"
+ app:destination="@+id/nav_settings"
+ app:launchSingleTop="true"
+ app:popUpTo="@+id/nav_graph"
+ app:popUpToInclusive="true" />
+ <action
+ android:id="@+id/action_configFetcher_to_order"
+ app:destination="@+id/nav_order"
+ app:launchSingleTop="true"
+ app:popUpTo="@+id/nav_graph"
+ app:popUpToInclusive="true" />
+ </fragment>
+
+ <fragment
+ android:id="@+id/paymentSuccess"
+ android:name="net.taler.merchantpos.payment.PaymentSuccessFragment"
+ android:label="@string/payment_received"
+ tools:layout="@layout/fragment_payment_success" />
+
+ <action
+ android:id="@+id/action_global_order"
+ app:destination="@+id/nav_order"
+ app:launchSingleTop="true"
+ app:popUpTo="@+id/nav_graph" />
+ <action
+ android:id="@+id/action_global_merchantHistory"
+ app:destination="@+id/nav_history"
+ app:launchSingleTop="true" />
+ <action
+ android:id="@+id/action_global_merchantSettings"
+ app:destination="@+id/nav_settings"
+ app:launchSingleTop="true" />
+ <action
+ android:id="@+id/action_global_configFetcher"
+ app:destination="@+id/configFetcher"
+ app:launchSingleTop="true" />
+
+</navigation>
diff --git a/merchant-terminal/src/main/res/values-night/colors.xml b/merchant-terminal/src/main/res/values-night/colors.xml
new file mode 100644
index 0000000..10bdbb9
--- /dev/null
+++ b/merchant-terminal/src/main/res/values-night/colors.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+ <color name="highlightedBackground">#2E2E2E</color>
+ <color name="selectedBackground">#363636</color>
+</resources>
diff --git a/merchant-terminal/src/main/res/values/colors.xml b/merchant-terminal/src/main/res/values/colors.xml
new file mode 100644
index 0000000..bf0c849
--- /dev/null
+++ b/merchant-terminal/src/main/res/values/colors.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+ <color name="colorPrimary">#795548</color>
+ <color name="colorPrimaryDark">#5D4037</color>
+ <color name="colorAccent">#FFEB3B</color>
+
+ <color name="highlightedBackground">#E4E4E4</color>
+ <color name="selectedBackground">#DADADA</color>
+ <color name="bottomButtons">#9E9D24</color>
+
+ <color name="green">#388E3C</color>
+ <color name="red">#C62828</color>
+
+</resources>
diff --git a/merchant-terminal/src/main/res/values/dimens.xml b/merchant-terminal/src/main/res/values/dimens.xml
new file mode 100644
index 0000000..eedc3c6
--- /dev/null
+++ b/merchant-terminal/src/main/res/values/dimens.xml
@@ -0,0 +1,6 @@
+<resources>
+ <dimen name="activity_horizontal_margin">16dp</dimen>
+ <dimen name="activity_vertical_margin">16dp</dimen>
+ <dimen name="nav_header_vertical_spacing">8dp</dimen>
+ <dimen name="nav_header_height">176dp</dimen>
+</resources> \ No newline at end of file
diff --git a/merchant-terminal/src/main/res/values/strings.xml b/merchant-terminal/src/main/res/values/strings.xml
new file mode 100644
index 0000000..77c7e03
--- /dev/null
+++ b/merchant-terminal/src/main/res/values/strings.xml
@@ -0,0 +1,68 @@
+<resources>
+ <string name="app_name">Taler Merchant PoS Terminal</string>
+ <string name="app_name_short">Merchant Terminal</string>
+ <string name="project_name">GNU Taler</string>
+
+ <string name="menu_order">Orders</string>
+ <string name="menu_history">History</string>
+ <string name="menu_settings">Settings</string>
+
+ <string name="order_label_title">Order #%s</string>
+ <!-- The first placeholder is the amount and the second the currency -->
+ <string name="order_total">Total: %1$.2f %2$s</string>
+ <string name="order_restart">Restart</string>
+ <string name="order_undo">Undo</string>
+ <string name="order_previous">Prev</string>
+ <string name="order_next">Next</string>
+ <string name="order_complete">Complete</string>
+
+ <string name="config_label">Merchant Settings</string>
+ <string name="config_url">Configuration URL</string>
+ <string name="config_username">Username</string>
+ <string name="config_password">Password</string>
+ <string name="config_ok">Fetch Configuration</string>
+ <string name="config_auth_error">Error: Invalid username or password</string>
+ <string name="config_error_network">Error: Could not connect to configuration server</string>
+ <string name="config_error_category">Error: No valid product category found</string>
+ <string name="config_error_malformed">Error: The configuration JSON is malformed</string>
+ <string name="config_error_currency">Error: Product %1$s has currency %2$s, but %3$s expected</string>
+ <string name="config_error_product_category_id">Error: Product %1$s references unknown category ID %2$d</string>
+ <string name="config_error_product_zero">Error: No valid products found</string>
+ <string name="config_error_unknown">Error: Invalid Configuration</string>
+ <string name="config_fetching">Fetching Configuration…</string>
+ <string name="config_save_password">Remember Password</string>
+ <string name="config_forget_password">Forget</string>
+ <string name="config_changed">Changed to new merchant using %s</string>
+ <string name="config_fetching_label">Fetching Configuration</string>
+ <string name="config_docs">Please refer to <a href="https://docs.taler.net/taler-merchant-pos-terminal.html#apis-and-data-formats">the documentation</a> for the configuration format.</string>
+
+ <string name="payment_intro_nfc">Please scan QR Code or use NFC to pay</string>
+ <string name="payment_intro">Please scan QR Code to pay</string>
+ <string name="payment_cancel">Cancel Payment</string>
+ <string name="payment_received">Payment received</string>
+ <string name="payment_back_button">Continue</string>
+ <string name="payment_order_ref">Order Reference: %s</string>
+ <string name="payment_process_label">Customer Payment Required</string>
+ <string name="payment_canceled">Payment Canceled</string>
+
+ <string name="history_label">Payment History</string>
+ <string name="history_received_at">Received at</string>
+ <string name="history_ref_no">Ref. No: %s</string>
+ <string name="history_refund">Refund Order</string>
+ <string name="refund_amount">Amount</string>
+ <string name="refund_reason">Refund reason</string>
+ <string name="refund_abort">Abort</string>
+ <string name="refund_confirm">Give Refund</string>
+ <string name="refund_error_max_amount">Greater than order amount of %s</string>
+ <string name="refund_error_zero">Needs to be positive amount</string>
+ <string name="refund_error_backend">Error processing refund</string>
+ <string name="refund_error_deadline">Refund deadline has passed</string>
+ <string name="refund_intro_nfc">Please scan QR Code or use NFC to give refund</string>
+ <string name="refund_intro">Please scan QR Code to give refund</string>
+ <string name="refund_order_ref">Order Reference: %1$s\n\n%2$s</string>
+
+ <string name="error_network">Network Error</string>
+
+ <string name="toast_back_to_exit">Click BACK again to exit</string>
+
+</resources>
diff --git a/merchant-terminal/src/main/res/values/styles.xml b/merchant-terminal/src/main/res/values/styles.xml
new file mode 100644
index 0000000..4445a01
--- /dev/null
+++ b/merchant-terminal/src/main/res/values/styles.xml
@@ -0,0 +1,21 @@
+<resources>
+ <!-- Base application theme. -->
+ <style name="AppTheme" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+ <!-- Customize your theme here. -->
+ <item name="colorPrimary">@color/colorPrimary</item>
+ <item name="colorOnPrimary">@android:color/white</item>
+ <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+ <item name="colorAccent">@color/colorAccent</item>
+ </style>
+
+ <style name="AppTheme.NoActionBar">
+ <item name="windowActionBar">false</item>
+ <item name="windowNoTitle">true</item>
+ <item name="android:statusBarColor">@android:color/transparent</item>
+ </style>
+
+ <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
+
+ <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
+
+</resources>
diff --git a/merchant-terminal/src/main/res/xml/backup_descriptor.xml b/merchant-terminal/src/main/res/xml/backup_descriptor.xml
new file mode 100644
index 0000000..6fd6103
--- /dev/null
+++ b/merchant-terminal/src/main/res/xml/backup_descriptor.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<full-backup-content>
+ <!-- Exclude specific shared preferences that contain GCM registration Id -->
+</full-backup-content>
diff --git a/merchant-terminal/src/test/java/net/taler/merchantpos/order/OrderManagerTest.kt b/merchant-terminal/src/test/java/net/taler/merchantpos/order/OrderManagerTest.kt
new file mode 100644
index 0000000..cdb928a
--- /dev/null
+++ b/merchant-terminal/src/test/java/net/taler/merchantpos/order/OrderManagerTest.kt
@@ -0,0 +1,151 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.order
+
+import android.app.Application
+import androidx.test.core.app.ApplicationProvider.getApplicationContext
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.kotlin.KotlinModule
+import kotlinx.coroutines.runBlocking
+import net.taler.merchantpos.R
+import org.json.JSONObject
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class OrderManagerTest {
+
+ private val mapper = ObjectMapper()
+ .registerModule(KotlinModule())
+ .configure(FAIL_ON_UNKNOWN_PROPERTIES, false)
+
+ private val app: Application = getApplicationContext()
+ private val orderManager = OrderManager(app, mapper)
+
+ @Test
+ fun `config test missing categories`() = runBlocking {
+ val json = JSONObject(
+ """
+ { "categories": [] }
+ """.trimIndent()
+ )
+ val result = orderManager.onConfigurationReceived(json, "KUDOS")
+ assertEquals(app.getString(R.string.config_error_category), result)
+ }
+
+ @Test
+ fun `config test currency mismatch`() = runBlocking {
+ val json = JSONObject(
+ """{
+ "categories": [
+ {
+ "id": 1,
+ "name": "Snacks"
+ }
+ ],
+ "products": [
+ {
+ "product_id": "631361561",
+ "description": "Chips",
+ "price": "WRONGCURRENCY:1.00",
+ "categories": [ 1 ],
+ "delivery_location": "cafeteria"
+ }
+ ]
+ }""".trimIndent()
+ )
+ val result = orderManager.onConfigurationReceived(json, "KUDOS")
+ val expectedStr = app.getString(
+ R.string.config_error_currency, "Chips", "WRONGCURRENCY", "KUDOS"
+ )
+ assertEquals(expectedStr, result)
+ }
+
+ @Test
+ fun `config test unknown category ID`() = runBlocking {
+ val json = JSONObject(
+ """{
+ "categories": [
+ {
+ "id": 1,
+ "name": "Snacks"
+ }
+ ],
+ "products": [
+ {
+ "product_id": "631361561",
+ "description": "Chips",
+ "price": "KUDOS:1.00",
+ "categories": [ 2 ]
+ }
+ ]
+ }""".trimIndent()
+ )
+ val result = orderManager.onConfigurationReceived(json, "KUDOS")
+ val expectedStr = app.getString(
+ R.string.config_error_product_category_id, "Chips", 2
+ )
+ assertEquals(expectedStr, result)
+ }
+
+ @Test
+ fun `config test no products`() = runBlocking {
+ val json = JSONObject(
+ """{
+ "categories": [
+ {
+ "id": 1,
+ "name": "Snacks"
+ }
+ ],
+ "products": []
+ }""".trimIndent()
+ )
+ val result = orderManager.onConfigurationReceived(json, "KUDOS")
+ val expectedStr = app.getString(R.string.config_error_product_zero)
+ assertEquals(expectedStr, result)
+ }
+
+ @Test
+ fun `config test valid config gets accepted`() = runBlocking {
+ val json = JSONObject(
+ """{
+ "categories": [
+ {
+ "id": 1,
+ "name": "Snacks"
+ }
+ ],
+ "products": [
+ {
+ "product_id": "631361561",
+ "description": "Chips",
+ "price": "KUDOS:1.00",
+ "categories": [ 1 ]
+ }
+ ]
+ }""".trimIndent()
+ )
+ val result = orderManager.onConfigurationReceived(json, "KUDOS")
+ assertNull(result)
+ }
+
+}
diff --git a/nightly-stats.patch b/nightly-stats.patch
new file mode 100644
index 0000000..689f46a
--- /dev/null
+++ b/nightly-stats.patch
@@ -0,0 +1,38 @@
+diff --git a/fdroidserver/nightly.py b/fdroidserver/nightly.py
+index 0a3a8012..ae3aa0e3 100644
+--- a/fdroidserver/nightly.py
++++ b/fdroidserver/nightly.py
+@@ -170,6 +170,7 @@ def main():
+ git_mirror_path = os.path.join(repo_basedir, 'git-mirror')
+ git_mirror_repodir = os.path.join(git_mirror_path, 'fdroid', 'repo')
+ git_mirror_metadatadir = os.path.join(git_mirror_path, 'fdroid', 'metadata')
++ git_mirror_statsdir = os.path.join(git_mirror_path, 'fdroid', 'stats')
+ if not os.path.isdir(git_mirror_repodir):
+ logging.debug(_('cloning {url}').format(url=clone_url))
+ try:
+@@ -217,6 +218,8 @@ Last updated: {date}'''.format(repo_git_base=repo_git_base,
+ common.local_rsync(options, git_mirror_repodir + '/', 'repo/')
+ if os.path.isdir(git_mirror_metadatadir):
+ common.local_rsync(options, git_mirror_metadatadir + '/', 'metadata/')
++ if os.path.isdir(git_mirror_statsdir):
++ common.local_rsync(options, git_mirror_statsdir + '/', 'stats/')
+
+ ssh_private_key_file = _ssh_key_from_debug_keystore()
+ # this is needed for GitPython to find the SSH key
+@@ -246,7 +249,7 @@ Last updated: {date}'''.format(repo_git_base=repo_git_base,
+ config += "keydname = '%s'\n" % DISTINGUISHED_NAME
+ config += "make_current_version_link = False\n"
+ config += "accepted_formats = ('txt', 'yml')\n"
+- # TODO add update_stats = True
++ config += "update_stats = True\n"
+ with open('config.py', 'w') as fp:
+ fp.write(config)
+ os.chmod('config.py', 0o600)
+@@ -293,6 +296,7 @@ Last updated: {date}'''.format(repo_git_base=repo_git_base,
+ subprocess.check_call(['fdroid', 'update', '--rename-apks', '--create-metadata', '--verbose'],
+ cwd=repo_basedir)
+ common.local_rsync(options, repo_basedir + '/metadata/', git_mirror_metadatadir + '/')
++ common.local_rsync(options, repo_basedir + '/stats/', git_mirror_statsdir + '/')
+ mirror_git_repo.git.add(all=True)
+ mirror_git_repo.index.commit("update app metadata")
+
diff --git a/settings.gradle b/settings.gradle
new file mode 100644
index 0000000..a1882de
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1,17 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+include ':akono', ':cashier', ':merchant-terminal', ':wallet'
diff --git a/wallet/.gitignore b/wallet/.gitignore
new file mode 100644
index 0000000..741e19c
--- /dev/null
+++ b/wallet/.gitignore
@@ -0,0 +1,2 @@
+/build
+/src/main/assets
diff --git a/wallet/.gitlab-ci.yml b/wallet/.gitlab-ci.yml
new file mode 100644
index 0000000..4c1f9a8
--- /dev/null
+++ b/wallet/.gitlab-ci.yml
@@ -0,0 +1,42 @@
+.binary_deps:
+ only:
+ changes:
+ - "wallet"
+ before_script:
+ - wget "https://git.taler.net/wallet-android.git/plain/akono.aar?h=binary-deps" -O akono/akono.aar
+ - mkdir -p app/src/main/assets
+ - wget "https://git.taler.net/wallet-android.git/plain/taler-wallet-android.js?h=binary-deps" -O app/src/main/assets/taler-wallet-android.js
+
+wallet_test:
+ stage: test
+ extends: .binary_deps
+ script: ./gradlew :wallet:lint :wallet:assembleRelease
+
+wallet_deploy_nightly:
+ stage: deploy
+ extends: .binary_deps
+ only:
+ refs:
+ - master
+ script:
+ # Ensure that key exists
+ - test -z "$DEBUG_KEYSTORE" && exit 0
+ # Rename nightly app
+ - sed -i
+ 's,<string name="app_name">.*</string>,<string name="app_name">Taler Wallet Nightly</string>,'
+ wallet/src/main/res/values*/strings.xml
+ # Set time-based version code
+ - export versionCode=$(date '+%s')
+ - sed -i "s,^\(\s*versionCode\) *[0-9].*,\1 $versionCode," wallet/build.gradle
+ # Add commit to version name
+ - export versionName=$(git rev-parse --short=7 HEAD)
+ - sed -i "s,^\(\s*versionName\ *\"[0-9].*\)\",\1 ($versionName)\"," wallet/build.gradle
+ # Set nightly application ID
+ - sed -i "s,^\(\s*applicationId\) \"*[a-z\.].*\",\1 \"net.taler.wallet.nightly\"," wallet/build.gradle
+ # Build the APK
+ - ./gradlew :wallet:assembleDebug
+ # START only needed while patch not accepted/released upstream
+ - apt update && apt install patch
+ - patch /usr/lib/python3/dist-packages/fdroidserver/nightly.py nightly-stats.patch
+ # END
+ - CI_PROJECT_URL="https://gitlab.com/gnu-taler/fdroid-repo" CI_PROJECT_PATH="gnu-taler/fdroid-repo" fdroid nightly -v
diff --git a/wallet/README.md b/wallet/README.md
new file mode 100644
index 0000000..63b128b
--- /dev/null
+++ b/wallet/README.md
@@ -0,0 +1,40 @@
+GNU Taler Wallet
+================
+
+This package implements a GNU Taler wallet for Android.
+It is currently a UI for the wallet writen in TypeScript.
+
+
+Building
+========
+
+Currently, building the wallet for Android requires manually copying two
+dependencies:
+
+`akono.aar` -> `../akono/akono.aar`
+`taler-wallet-android.js` -> `src/main/assets/taler-wallet-android.js`
+
+After that, the Android wallet can be built with Gradle:
+
+ $ ./gradlew build
+
+
+Obtaining Dependencies
+======================
+
+There are two ways of obtaining the dependencies. The easiest one is
+to use the pre-built versions, which are stored in the "binary-deps"
+branch of this repository.
+
+An easy way to access them is using a git worktree:
+
+ $ git fetch origin binary-deps
+ $ git worktree add binary-deps binary-deps
+ $ cp binary-deps/akono.aar ../akono/akono.aar
+ $ cp binary-deps/taler-wallet-android.js src/main/assets/taler-wallet-android.js
+ $ git worktree remove binary-deps
+
+Alternatively, you can build them yourself from the respective repositories:
+
+ * git://git.taler.net/akono.git
+ * git://git.taler.net/wallet-core.git
diff --git a/wallet/build.gradle b/wallet/build.gradle
new file mode 100644
index 0000000..c31e392
--- /dev/null
+++ b/wallet/build.gradle
@@ -0,0 +1,81 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+
+android {
+ compileSdkVersion 29
+ buildToolsVersion "29.0.3"
+ defaultConfig {
+ applicationId "net.taler.wallet"
+ minSdkVersion 21
+ targetSdkVersion 29
+ versionCode 6
+ versionName "0.6.0pre8"
+ testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+ }
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+ }
+ }
+
+ compileOptions {
+ sourceCompatibility = 1.8
+ targetCompatibility = 1.8
+ }
+
+ kotlinOptions {
+ jvmTarget = "1.8"
+ }
+}
+
+dependencies {
+ implementation project(":akono")
+
+ implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+ implementation 'androidx.appcompat:appcompat:1.1.0'
+ implementation 'androidx.core:core-ktx:1.2.0'
+ implementation 'com.google.android.material:material:1.1.0'
+ implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+
+ // Navigation Library
+ implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
+ implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
+
+ // ViewModel and LiveData
+ def lifecycle_version = "2.2.0"
+ implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
+ implementation "androidx.lifecycle:lifecycle-common-java8:$lifecycle_version"
+ implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycle_version"
+
+ // QR codes
+ implementation 'com.google.zxing:core:3.4.0'
+ implementation 'com.journeyapps:zxing-android-embedded:3.2.0@aar'
+
+ // Nicer ProgressBar
+ implementation 'me.zhanghai.android.materialprogressbar:library:1.6.1'
+
+ // JSON parsing and serialization
+ implementation 'com.fasterxml.jackson.module:jackson-module-kotlin:2.10.2'
+
+ testImplementation 'junit:junit:4.13'
+ androidTestImplementation 'androidx.test:runner:1.2.0'
+ androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+}
diff --git a/wallet/proguard-rules.pro b/wallet/proguard-rules.pro
new file mode 100644
index 0000000..f1b4245
--- /dev/null
+++ b/wallet/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/wallet/src/androidTest/java/net/taler/wallet/ExampleInstrumentedTest.kt b/wallet/src/androidTest/java/net/taler/wallet/ExampleInstrumentedTest.kt
new file mode 100644
index 0000000..5f0c423
--- /dev/null
+++ b/wallet/src/androidTest/java/net/taler/wallet/ExampleInstrumentedTest.kt
@@ -0,0 +1,38 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet
+
+import androidx.test.InstrumentationRegistry
+import androidx.test.runner.AndroidJUnit4
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import org.junit.runner.RunWith
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+ @Test
+ fun useAppContext() {
+ // Context of the app under test.
+ val appContext = InstrumentationRegistry.getTargetContext()
+ assertEquals("net.taler.wallet", appContext.packageName)
+ }
+}
diff --git a/wallet/src/main/AndroidManifest.xml b/wallet/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..a61483d
--- /dev/null
+++ b/wallet/src/main/AndroidManifest.xml
@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:tools="http://schemas.android.com/tools"
+ package="net.taler.wallet">
+
+ <uses-permission android:name="android.permission.NFC" />
+
+ <uses-feature
+ android:name="android.hardware.telephony"
+ android:required="false" />
+ <uses-feature
+ android:name="android.hardware.nfc.hce"
+ android:required="false" />
+
+ <application
+ android:allowBackup="true"
+ android:fullBackupContent="@xml/backup_descriptor"
+ android:icon="@mipmap/ic_launcher"
+ android:label="@string/app_name"
+ android:roundIcon="@mipmap/ic_launcher_round"
+ android:supportsRtl="true"
+ android:theme="@style/AppTheme"
+ tools:ignore="GoogleAppIndexingWarning">
+
+ <activity
+ android:name=".MainActivity"
+ android:label="@string/app_name"
+ android:theme="@style/AppTheme.NoActionBar">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+ <category android:name="android.intent.category.LAUNCHER" />
+ </intent-filter>
+ <intent-filter>
+ <action android:name="android.intent.action.VIEW" />
+
+ <category android:name="android.intent.category.DEFAULT" />
+ <category android:name="android.intent.category.BROWSABLE" />
+
+ <data android:scheme="taler" />
+ </intent-filter>
+ </activity>
+
+ <activity
+ android:name="com.journeyapps.barcodescanner.CaptureActivity"
+ android:screenOrientation="fullSensor"
+ tools:replace="screenOrientation" />
+
+ <service
+ android:name=".HostCardEmulatorService"
+ android:exported="true"
+ android:permission="android.permission.BIND_NFC_SERVICE">
+ <intent-filter>
+ <action android:name="android.nfc.cardemulation.action.HOST_APDU_SERVICE" />
+ </intent-filter>
+
+ <meta-data
+ android:name="android.nfc.cardemulation.host_apdu_service"
+ android:resource="@xml/apduservice" />
+ </service>
+
+ <service
+ android:name=".backend.WalletBackendService"
+ android:process=":WalletBackendService" />
+ </application>
+
+</manifest>
diff --git a/wallet/src/main/ic_launcher-web.png b/wallet/src/main/ic_launcher-web.png
new file mode 100644
index 0000000..f0f6be7
--- /dev/null
+++ b/wallet/src/main/ic_launcher-web.png
Binary files differ
diff --git a/wallet/src/main/java/net/taler/wallet/Amount.kt b/wallet/src/main/java/net/taler/wallet/Amount.kt
new file mode 100644
index 0000000..a19e9bc
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/Amount.kt
@@ -0,0 +1,141 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+@file:Suppress("EXPERIMENTAL_API_USAGE", "EXPERIMENTAL_UNSIGNED_LITERALS")
+
+package net.taler.wallet
+
+import com.fasterxml.jackson.core.JsonParser
+import com.fasterxml.jackson.databind.DeserializationContext
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize
+import com.fasterxml.jackson.databind.deser.std.StdDeserializer
+import org.json.JSONObject
+import kotlin.math.round
+
+private const val FRACTIONAL_BASE = 1e8
+
+@JsonDeserialize(using = AmountDeserializer::class)
+data class Amount(val currency: String, val amount: String) {
+ fun isZero(): Boolean {
+ return amount.toDouble() == 0.0
+ }
+
+ companion object {
+ fun fromJson(jsonAmount: JSONObject): Amount {
+ val amountCurrency = jsonAmount.getString("currency")
+ val amountValue = jsonAmount.getString("value")
+ val amountFraction = jsonAmount.getString("fraction")
+ val amountIntValue = Integer.parseInt(amountValue)
+ val amountIntFraction = Integer.parseInt(amountFraction)
+ return Amount(
+ amountCurrency,
+ (amountIntValue + amountIntFraction / FRACTIONAL_BASE).toString()
+ )
+ }
+
+ fun fromString(strAmount: String): Amount {
+ val components = strAmount.split(":")
+ return Amount(components[0], components[1])
+ }
+ }
+
+ override fun toString(): String {
+ return String.format("%.2f $currency", amount.toDouble())
+ }
+}
+
+class AmountDeserializer : StdDeserializer<Amount>(Amount::class.java) {
+ override fun deserialize(p: JsonParser, ctxt: DeserializationContext): Amount {
+ val node = p.codec.readValue(p, String::class.java)
+ return Amount.fromString(node)
+ }
+}
+
+class ParsedAmount(
+ /**
+ * name of the currency using either a three-character ISO 4217 currency code,
+ * or a regional currency identifier starting with a "*" followed by at most 10 characters.
+ * ISO 4217 exponents in the name are not supported,
+ * although the "fraction" is corresponds to an ISO 4217 exponent of 6.
+ */
+ val currency: String,
+
+ /**
+ * unsigned 32 bit value in the currency,
+ * note that "1" here would correspond to 1 EUR or 1 USD, depending on currency, not 1 cent.
+ */
+ val value: UInt,
+
+ /**
+ * unsigned 32 bit fractional value to be added to value
+ * representing an additional currency fraction,
+ * in units of one millionth (1e-6) of the base currency value.
+ * For example, a fraction of 500,000 would correspond to 50 cents.
+ */
+ val fraction: Double
+) {
+ companion object {
+ fun parseAmount(str: String): ParsedAmount {
+ val split = str.split(":")
+ check(split.size == 2)
+ val currency = split[0]
+ val valueSplit = split[1].split(".")
+ val value = valueSplit[0].toUInt()
+ val fraction: Double = if (valueSplit.size > 1) {
+ round("0.${valueSplit[1]}".toDouble() * FRACTIONAL_BASE)
+ } else 0.0
+ return ParsedAmount(currency, value, fraction)
+ }
+ }
+
+ operator fun minus(other: ParsedAmount): ParsedAmount {
+ check(currency == other.currency) { "Can only subtract from same currency" }
+ var resultValue = value
+ var resultFraction = fraction
+ if (resultFraction < other.fraction) {
+ if (resultValue < 1u) {
+ return ParsedAmount(currency, 0u, 0.0)
+ }
+ resultValue--
+ resultFraction += FRACTIONAL_BASE
+ }
+ check(resultFraction >= other.fraction)
+ resultFraction -= other.fraction
+ if (resultValue < other.value) {
+ return ParsedAmount(currency, 0u, 0.0)
+ }
+ resultValue -= other.value
+ return ParsedAmount(currency, resultValue, resultFraction)
+ }
+
+ fun isZero(): Boolean {
+ return value == 0u && fraction == 0.0
+ }
+
+ @Suppress("unused")
+ fun toJSONString(): String {
+ return "$currency:${getValueString()}"
+ }
+
+ override fun toString(): String {
+ return "${getValueString()} $currency"
+ }
+
+ private fun getValueString(): String {
+ return "$value${(fraction / FRACTIONAL_BASE).toString().substring(1)}"
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/BalanceFragment.kt b/wallet/src/main/java/net/taler/wallet/BalanceFragment.kt
new file mode 100644
index 0000000..84a1b3c
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/BalanceFragment.kt
@@ -0,0 +1,198 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet
+
+import android.os.Bundle
+import android.transition.TransitionManager.beginDelayedTransition
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.Menu
+import android.view.MenuInflater
+import android.view.MenuItem
+import android.view.View
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.LinearLayoutManager.VERTICAL
+import androidx.recyclerview.widget.RecyclerView.Adapter
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
+import com.google.zxing.integration.android.IntentIntegrator
+import com.google.zxing.integration.android.IntentIntegrator.QR_CODE_TYPES
+import kotlinx.android.synthetic.main.fragment_show_balance.*
+import net.taler.wallet.BalanceAdapter.BalanceViewHolder
+
+class BalanceFragment : Fragment() {
+
+ private val model: WalletViewModel by activityViewModels()
+ private val withdrawManager by lazy { model.withdrawManager }
+
+ private var reloadBalanceMenuItem: MenuItem? = null
+ private val balancesAdapter = BalanceAdapter()
+
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+ setHasOptionsMenu(true)
+ }
+
+ override fun onCreateView(
+ inflater: LayoutInflater,
+ container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_show_balance, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ balancesList.apply {
+ layoutManager = LinearLayoutManager(context)
+ adapter = balancesAdapter
+ addItemDecoration(DividerItemDecoration(context, VERTICAL))
+ }
+
+ model.balances.observe(viewLifecycleOwner, Observer {
+ onBalancesChanged(it)
+ })
+
+ model.devMode.observe(viewLifecycleOwner, Observer { enabled ->
+ delayedTransition()
+ testWithdrawButton.visibility = if (enabled) VISIBLE else GONE
+ reloadBalanceMenuItem?.isVisible = enabled
+ })
+ testWithdrawButton.setOnClickListener {
+ withdrawManager.withdrawTestkudos()
+ }
+ withdrawManager.testWithdrawalInProgress.observe(viewLifecycleOwner, Observer { loading ->
+ Log.v("taler-wallet", "observing balance loading $loading in show balance")
+ testWithdrawButton.isEnabled = !loading
+ model.showProgressBar.value = loading
+ })
+
+ scanButton.setOnClickListener {
+ IntentIntegrator(activity).apply {
+ setPrompt("")
+ setBeepEnabled(true)
+ setOrientationLocked(false)
+ }.initiateScan(QR_CODE_TYPES)
+ }
+ }
+
+ override fun onStart() {
+ super.onStart()
+ model.loadBalances()
+ }
+
+ override fun onOptionsItemSelected(item: MenuItem): Boolean {
+ return when (item.itemId) {
+ R.id.reload_balance -> {
+ model.loadBalances()
+ true
+ }
+ R.id.developer_mode -> {
+ item.isChecked = !item.isChecked
+ model.devMode.value = item.isChecked
+ true
+ }
+ else -> super.onOptionsItemSelected(item)
+ }
+ }
+
+ override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
+ inflater.inflate(R.menu.balance, menu)
+ menu.findItem(R.id.developer_mode).isChecked = model.devMode.value!!
+ reloadBalanceMenuItem = menu.findItem(R.id.reload_balance).apply {
+ isVisible = model.devMode.value!!
+ }
+ super.onCreateOptionsMenu(menu, inflater)
+ }
+
+ private fun onBalancesChanged(balances: List<BalanceItem>) {
+ delayedTransition()
+ if (balances.isEmpty()) {
+ balancesEmptyState.visibility = VISIBLE
+ balancesList.visibility = GONE
+ } else {
+ balancesAdapter.setItems(balances)
+ balancesEmptyState.visibility = GONE
+ balancesList.visibility = VISIBLE
+ }
+ }
+
+ private fun delayedTransition() {
+ beginDelayedTransition(view as ViewGroup)
+ }
+
+}
+
+class BalanceAdapter : Adapter<BalanceViewHolder>() {
+
+ private var items = emptyList<BalanceItem>()
+
+ init {
+ setHasStableIds(false)
+ }
+
+ override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BalanceViewHolder {
+ val v =
+ LayoutInflater.from(parent.context).inflate(R.layout.list_item_balance, parent, false)
+ return BalanceViewHolder(v)
+ }
+
+ override fun getItemCount() = items.size
+
+ override fun onBindViewHolder(holder: BalanceViewHolder, position: Int) {
+ val item = items[position]
+ holder.bind(item)
+ }
+
+ fun setItems(items: List<BalanceItem>) {
+ this.items = items
+ this.notifyDataSetChanged()
+ }
+
+ class BalanceViewHolder(private val v: View) : ViewHolder(v) {
+ private val currencyView: TextView = v.findViewById(R.id.balance_currency)
+ private val amountView: TextView = v.findViewById(R.id.balance_amount)
+ private val balanceInboundAmount: TextView = v.findViewById(R.id.balanceInboundAmount)
+ private val balanceInboundLabel: TextView = v.findViewById(R.id.balanceInboundLabel)
+
+ fun bind(item: BalanceItem) {
+ currencyView.text = item.available.currency
+ amountView.text = item.available.amount
+
+ val amountIncoming = item.pendingIncoming
+ if (amountIncoming.isZero()) {
+ balanceInboundAmount.visibility = GONE
+ balanceInboundLabel.visibility = GONE
+ } else {
+ balanceInboundAmount.visibility = VISIBLE
+ balanceInboundLabel.visibility = VISIBLE
+ balanceInboundAmount.text = v.context.getString(
+ R.string.balances_inbound_amount,
+ amountIncoming.amount,
+ amountIncoming.currency
+ )
+ }
+ }
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/HostCardEmulatorService.kt b/wallet/src/main/java/net/taler/wallet/HostCardEmulatorService.kt
new file mode 100644
index 0000000..93f1d3f
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/HostCardEmulatorService.kt
@@ -0,0 +1,187 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import android.net.Uri
+import android.nfc.cardemulation.HostApduService
+import android.os.Bundle
+import android.util.Log
+import java.io.ByteArrayInputStream
+import java.io.ByteArrayOutputStream
+import java.util.concurrent.ConcurrentLinkedDeque
+
+fun makeApduSuccessResponse(payload: ByteArray): ByteArray {
+ val stream = ByteArrayOutputStream()
+ stream.write(payload)
+ stream.write(0x90)
+ stream.write(0x00)
+ return stream.toByteArray()
+}
+
+
+fun makeApduFailureResponse(): ByteArray {
+ val stream = ByteArrayOutputStream()
+ stream.write(0x6F)
+ stream.write(0x00)
+ return stream.toByteArray()
+}
+
+
+fun readApduBodySize(stream: ByteArrayInputStream): Int {
+ val b0 = stream.read()
+ if (b0 == -1) {
+ return 0
+ }
+ if (b0 != 0) {
+ return b0
+ }
+ val b1 = stream.read()
+ val b2 = stream.read()
+
+ return (b1 shl 8) and b2
+}
+
+
+class HostCardEmulatorService: HostApduService() {
+
+ val queuedRequests: ConcurrentLinkedDeque<String> = ConcurrentLinkedDeque()
+ private lateinit var receiver: BroadcastReceiver
+
+ override fun onCreate() {
+ super.onCreate()
+ receiver = object : BroadcastReceiver() {
+ override fun onReceive(p0: Context?, p1: Intent?) {
+ queuedRequests.addLast(p1!!.getStringExtra("tunnelMessage"))
+ }
+ }
+ IntentFilter(HTTP_TUNNEL_REQUEST).also { filter ->
+ registerReceiver(receiver, filter)
+ }
+ }
+
+ override fun onDestroy() {
+ super.onDestroy()
+ unregisterReceiver(receiver)
+ }
+
+ override fun onDeactivated(reason: Int) {
+ Log.d(TAG, "Deactivated: $reason")
+ Intent().also { intent ->
+ intent.action = MERCHANT_NFC_DISCONNECTED
+ sendBroadcast(intent)
+ }
+ }
+
+ override fun processCommandApdu(commandApdu: ByteArray?,
+ extras: Bundle?): ByteArray {
+
+ Log.d(TAG, "Processing command APDU")
+
+ if (commandApdu == null) {
+ Log.d(TAG, "APDU is null")
+ return makeApduFailureResponse()
+ }
+
+ val stream = ByteArrayInputStream(commandApdu)
+
+ val command = stream.read()
+
+ if (command != 0) {
+ Log.d(TAG, "APDU has invalid command")
+ return makeApduFailureResponse()
+ }
+
+ val instruction = stream.read()
+
+ // Read instruction parameters, currently ignored.
+ stream.read()
+ stream.read()
+
+ if (instruction == SELECT_INS) {
+ // FIXME: validate body!
+ return makeApduSuccessResponse(ByteArray(0))
+ }
+
+ if (instruction == GET_INS) {
+ val req = queuedRequests.poll()
+ return if (req != null) {
+ Log.v(TAG,"sending tunnel request")
+ makeApduSuccessResponse(req.toByteArray(Charsets.UTF_8))
+ } else {
+ makeApduSuccessResponse(ByteArray(0))
+ }
+ }
+
+ if (instruction == PUT_INS) {
+ val bodySize = readApduBodySize(stream)
+ val talerInstr = stream.read()
+ val bodyBytes = stream.readBytes()
+ if (1 + bodyBytes.size != bodySize) {
+ Log.w(TAG, "mismatched body size ($bodySize vs ${bodyBytes.size}")
+ }
+
+ when (talerInstr) {
+ 1 -> {
+ val url = String(bodyBytes, Charsets.UTF_8)
+ Log.v(TAG, "got URL: '$url'")
+
+ Intent(this, MainActivity::class.java).also { intent ->
+ intent.data = Uri.parse(url)
+ intent.action = Intent.ACTION_VIEW
+ intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+ startActivity(intent)
+ }
+ }
+ 2 -> {
+ Log.v(TAG, "got http response: ${bodyBytes.toString(Charsets.UTF_8)}")
+
+ Intent().also { intent ->
+ intent.action = HTTP_TUNNEL_RESPONSE
+ intent.putExtra("response", bodyBytes.toString(Charsets.UTF_8))
+ sendBroadcast(intent)
+ }
+ }
+ else -> {
+ Log.v(TAG, "taler instruction $talerInstr unknown")
+ }
+ }
+
+ return makeApduSuccessResponse(ByteArray(0))
+ }
+
+ return makeApduFailureResponse()
+ }
+
+ companion object {
+ const val TAG = "taler-wallet-hce"
+ const val SELECT_INS = 0xA4
+ const val PUT_INS = 0xDA
+ const val GET_INS = 0xCA
+
+ const val TRIGGER_PAYMENT_ACTION = "net.taler.TRIGGER_PAYMENT_ACTION"
+
+ const val MERCHANT_NFC_CONNECTED = "net.taler.MERCHANT_NFC_CONNECTED"
+ const val MERCHANT_NFC_DISCONNECTED = "net.taler.MERCHANT_NFC_DISCONNECTED"
+
+ const val HTTP_TUNNEL_RESPONSE = "net.taler.HTTP_TUNNEL_RESPONSE"
+ const val HTTP_TUNNEL_REQUEST = "net.taler.HTTP_TUNNEL_REQUEST"
+ }
+} \ No newline at end of file
diff --git a/wallet/src/main/java/net/taler/wallet/MainActivity.kt b/wallet/src/main/java/net/taler/wallet/MainActivity.kt
new file mode 100644
index 0000000..c2f20f7
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/MainActivity.kt
@@ -0,0 +1,209 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet
+
+import android.annotation.SuppressLint
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.Intent.ACTION_VIEW
+import android.content.IntentFilter
+import android.os.Bundle
+import android.util.Log
+import android.view.MenuItem
+import android.view.View.GONE
+import android.view.View.INVISIBLE
+import android.view.View.VISIBLE
+import android.widget.TextView
+import androidx.activity.viewModels
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.GravityCompat.START
+import androidx.lifecycle.Observer
+import androidx.navigation.NavController
+import androidx.navigation.fragment.NavHostFragment
+import androidx.navigation.ui.AppBarConfiguration
+import androidx.navigation.ui.setupWithNavController
+import com.google.android.material.navigation.NavigationView.OnNavigationItemSelectedListener
+import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.snackbar.Snackbar.LENGTH_SHORT
+import com.google.zxing.integration.android.IntentIntegrator
+import com.google.zxing.integration.android.IntentIntegrator.parseActivityResult
+import kotlinx.android.synthetic.main.activity_main.*
+import kotlinx.android.synthetic.main.app_bar_main.*
+import net.taler.wallet.BuildConfig.VERSION_CODE
+import net.taler.wallet.BuildConfig.VERSION_NAME
+import net.taler.wallet.HostCardEmulatorService.Companion.HTTP_TUNNEL_RESPONSE
+import net.taler.wallet.HostCardEmulatorService.Companion.MERCHANT_NFC_CONNECTED
+import net.taler.wallet.HostCardEmulatorService.Companion.MERCHANT_NFC_DISCONNECTED
+import net.taler.wallet.HostCardEmulatorService.Companion.TRIGGER_PAYMENT_ACTION
+import java.util.Locale.ROOT
+
+class MainActivity : AppCompatActivity(), OnNavigationItemSelectedListener,
+ ResetDialogEventListener {
+
+ private val model: WalletViewModel by viewModels()
+
+ private lateinit var nav: NavController
+
+ @SuppressLint("SetTextI18n")
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+ setContentView(R.layout.activity_main)
+
+ val navHostFragment =
+ supportFragmentManager.findFragmentById(R.id.nav_host_fragment) as NavHostFragment
+ nav = navHostFragment.navController
+ nav_view.setupWithNavController(nav)
+ nav_view.setNavigationItemSelectedListener(this)
+ if (savedInstanceState == null) {
+ nav_view.menu.getItem(0).isChecked = true
+ }
+
+ setSupportActionBar(toolbar)
+ val appBarConfiguration = AppBarConfiguration(
+ setOf(R.id.showBalance, R.id.settings, R.id.walletHistory, R.id.nav_pending_operations), drawer_layout
+ )
+ toolbar.setupWithNavController(nav, appBarConfiguration)
+
+ model.showProgressBar.observe(this, Observer { show ->
+ progress_bar.visibility = if (show) VISIBLE else INVISIBLE
+ })
+
+ val versionView: TextView = nav_view.getHeaderView(0).findViewById(R.id.versionView)
+ model.devMode.observe(this, Observer { enabled ->
+ nav_view.menu.findItem(R.id.nav_pending_operations).isVisible = enabled
+ if (enabled) {
+ @SuppressLint("SetTextI18n")
+ versionView.text = "$VERSION_NAME ($VERSION_CODE)"
+ versionView.visibility = VISIBLE
+ } else versionView.visibility = GONE
+ })
+
+ if (intent.action == ACTION_VIEW) intent.dataString?.let { uri ->
+ handleTalerUri(uri, "intent")
+ }
+
+ //model.startTunnel()
+
+ registerReceiver(triggerPaymentReceiver, IntentFilter(TRIGGER_PAYMENT_ACTION))
+ registerReceiver(nfcConnectedReceiver, IntentFilter(MERCHANT_NFC_CONNECTED))
+ registerReceiver(nfcDisconnectedReceiver, IntentFilter(MERCHANT_NFC_DISCONNECTED))
+ registerReceiver(tunnelResponseReceiver, IntentFilter(HTTP_TUNNEL_RESPONSE))
+ }
+
+ override fun onBackPressed() {
+ if (drawer_layout.isDrawerOpen(START)) drawer_layout.closeDrawer(START)
+ else super.onBackPressed()
+ }
+
+ override fun onNavigationItemSelected(item: MenuItem): Boolean {
+ when (item.itemId) {
+ R.id.nav_home -> nav.navigate(R.id.showBalance)
+ R.id.nav_settings -> nav.navigate(R.id.settings)
+ R.id.nav_history -> nav.navigate(R.id.walletHistory)
+ R.id.nav_pending_operations -> nav.navigate(R.id.nav_pending_operations)
+ }
+ drawer_layout.closeDrawer(START)
+ return true
+ }
+
+ override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+ super.onActivityResult(requestCode, resultCode, data)
+ if (requestCode == IntentIntegrator.REQUEST_CODE) {
+ parseActivityResult(requestCode, resultCode, data)?.contents?.let { contents ->
+ handleTalerUri(contents, "QR code")
+ }
+ }
+ }
+
+ override fun onDestroy() {
+ unregisterReceiver(triggerPaymentReceiver)
+ unregisterReceiver(nfcConnectedReceiver)
+ unregisterReceiver(nfcDisconnectedReceiver)
+ unregisterReceiver(tunnelResponseReceiver)
+ super.onDestroy()
+ }
+
+ private fun handleTalerUri(url: String, from: String) {
+ when {
+ url.toLowerCase(ROOT).startsWith("taler://pay/") -> {
+ Log.v(TAG, "navigating!")
+ nav.navigate(R.id.action_showBalance_to_promptPayment)
+ model.paymentManager.preparePay(url)
+ }
+ url.toLowerCase(ROOT).startsWith("taler://withdraw/") -> {
+ Log.v(TAG, "navigating!")
+ nav.navigate(R.id.action_showBalance_to_promptWithdraw)
+ model.withdrawManager.getWithdrawalInfo(url)
+ }
+ url.toLowerCase(ROOT).startsWith("taler://refund/") -> {
+ // TODO implement refunds
+ Snackbar.make(nav_view, "Refunds are not yet implemented", LENGTH_SHORT).show()
+ }
+ else -> {
+ Snackbar.make(
+ nav_view,
+ "URL from $from doesn't contain a supported Taler Uri.",
+ LENGTH_SHORT
+ ).show()
+ }
+ }
+ }
+
+ private val triggerPaymentReceiver = object : BroadcastReceiver() {
+ override fun onReceive(context: Context, intent: Intent) {
+ if (nav.currentDestination?.id == R.id.promptPayment) return
+ intent.extras?.getString("contractUrl")?.let { url ->
+ nav.navigate(R.id.action_global_promptPayment)
+ model.paymentManager.preparePay(url)
+ }
+ }
+ }
+
+ private val nfcConnectedReceiver = object : BroadcastReceiver() {
+ override fun onReceive(context: Context, intent: Intent) {
+ Log.v(TAG, "got MERCHANT_NFC_CONNECTED")
+ //model.startTunnel()
+ }
+ }
+
+ private val nfcDisconnectedReceiver = object : BroadcastReceiver() {
+ override fun onReceive(context: Context, intent: Intent) {
+ Log.v(TAG, "got MERCHANT_NFC_DISCONNECTED")
+ //model.stopTunnel()
+ }
+ }
+
+ private val tunnelResponseReceiver = object : BroadcastReceiver() {
+ override fun onReceive(context: Context, intent: Intent) {
+ Log.v("taler-tunnel", "got HTTP_TUNNEL_RESPONSE")
+ intent.getStringExtra("response")?.let {
+ model.tunnelResponse(it)
+ }
+ }
+ }
+
+ override fun onResetConfirmed() {
+ model.dangerouslyReset()
+ Snackbar.make(nav_view, "Wallet has been reset", LENGTH_SHORT).show()
+ }
+
+ override fun onResetCancelled() {
+ Snackbar.make(nav_view, "Reset cancelled", LENGTH_SHORT).show()
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/Settings.kt b/wallet/src/main/java/net/taler/wallet/Settings.kt
new file mode 100644
index 0000000..6d10412
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/Settings.kt
@@ -0,0 +1,140 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet
+
+import android.app.Dialog
+import android.content.Context
+import android.content.Intent
+import android.content.Intent.ACTION_CREATE_DOCUMENT
+import android.content.Intent.ACTION_OPEN_DOCUMENT
+import android.content.Intent.CATEGORY_OPENABLE
+import android.content.Intent.EXTRA_TITLE
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import androidx.appcompat.app.AlertDialog
+import androidx.fragment.app.DialogFragment
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import kotlinx.android.synthetic.main.fragment_settings.*
+
+
+interface ResetDialogEventListener {
+ fun onResetConfirmed()
+ fun onResetCancelled()
+}
+
+
+class ResetDialogFragment : DialogFragment() {
+ private lateinit var listener: ResetDialogEventListener
+
+ override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+ return activity?.let {
+ // Use the Builder class for convenient dialog construction
+ val builder = AlertDialog.Builder(it)
+ builder.setMessage("Do you really want to reset the wallet and lose all coins and purchases? Consider making a backup first.")
+ .setPositiveButton("Reset") { _, _ ->
+ listener.onResetConfirmed()
+ }
+ .setNegativeButton("Cancel") { _, _ ->
+ listener.onResetCancelled()
+ }
+ // Create the AlertDialog object and return it
+ builder.create()
+ } ?: throw IllegalStateException("Activity cannot be null")
+ }
+
+ override fun onAttach(context: Context) {
+ super.onAttach(context)
+ // Verify that the host activity implements the callback interface
+ try {
+ // Instantiate the NoticeDialogListener so we can send events to the host
+ listener = context as ResetDialogEventListener
+ } catch (e: ClassCastException) {
+ // The activity doesn't implement the interface, throw exception
+ throw ClassCastException((context.toString() +
+ " must implement ResetDialogEventListener"))
+ }
+ }
+}
+
+class Settings : Fragment() {
+
+ companion object {
+ private const val TAG = "taler-wallet"
+ private const val CREATE_FILE = 1
+ private const val PICK_FILE = 2
+ }
+
+ private val model: WalletViewModel by activityViewModels()
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_settings, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ model.devMode.observe(viewLifecycleOwner, Observer { enabled ->
+ val visibility = if (enabled) VISIBLE else GONE
+ devSettingsTitle.visibility = visibility
+ button_reset_wallet_dangerously.visibility = visibility
+ })
+
+ textView4.text = BuildConfig.VERSION_NAME
+ button_reset_wallet_dangerously.setOnClickListener {
+ val d = ResetDialogFragment()
+ d.show(parentFragmentManager, "walletResetDialog")
+ }
+ button_backup_export.setOnClickListener {
+ val intent = Intent(ACTION_CREATE_DOCUMENT).apply {
+ addCategory(CATEGORY_OPENABLE)
+ type = "application/json"
+ putExtra(EXTRA_TITLE, "taler-wallet-backup.json")
+
+ // Optionally, specify a URI for the directory that should be opened in
+ // the system file picker before your app creates the document.
+ //putExtra(DocumentsContract.EXTRA_INITIAL_URI, pickerInitialUri)
+ }
+ startActivityForResult(intent, CREATE_FILE)
+ }
+ button_backup_import.setOnClickListener {
+ val intent = Intent(ACTION_OPEN_DOCUMENT).apply {
+ addCategory(CATEGORY_OPENABLE)
+ type = "application/json"
+
+ //putExtra(DocumentsContract.EXTRA_INITIAL_URI, pickerInitialUri)
+ }
+ startActivityForResult(intent, PICK_FILE)
+ }
+ }
+
+ override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+ if (data == null) return
+ when (requestCode) {
+ CREATE_FILE -> Log.i(TAG, "got createFile result with URL ${data.data}")
+ PICK_FILE -> Log.i(TAG, "got pickFile result with URL ${data.data}")
+ }
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/Utils.kt b/wallet/src/main/java/net/taler/wallet/Utils.kt
new file mode 100644
index 0000000..fb0b3ae
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/Utils.kt
@@ -0,0 +1,40 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet
+
+import android.view.View
+import android.view.View.INVISIBLE
+import android.view.View.VISIBLE
+
+fun View.fadeIn(endAction: () -> Unit = {}) {
+ if (visibility == VISIBLE) return
+ alpha = 0f
+ visibility = VISIBLE
+ animate().alpha(1f).withEndAction {
+ if (context != null) endAction.invoke()
+ }.start()
+}
+
+fun View.fadeOut(endAction: () -> Unit = {}) {
+ if (visibility == INVISIBLE) return
+ animate().alpha(0f).withEndAction {
+ if (context == null) return@withEndAction
+ visibility = INVISIBLE
+ alpha = 1f
+ endAction.invoke()
+ }.start()
+}
diff --git a/wallet/src/main/java/net/taler/wallet/WalletViewModel.kt b/wallet/src/main/java/net/taler/wallet/WalletViewModel.kt
new file mode 100644
index 0000000..14a800f
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/WalletViewModel.kt
@@ -0,0 +1,124 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet
+
+import android.app.Application
+import android.util.Log
+import androidx.annotation.UiThread
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.distinctUntilChanged
+import com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.kotlin.KotlinModule
+import net.taler.wallet.backend.WalletBackendApi
+import net.taler.wallet.history.HistoryManager
+import net.taler.wallet.payment.PaymentManager
+import net.taler.wallet.pending.PendingOperationsManager
+import net.taler.wallet.withdraw.WithdrawManager
+import org.json.JSONObject
+
+const val TAG = "taler-wallet"
+
+data class BalanceItem(val available: Amount, val pendingIncoming: Amount)
+
+class WalletViewModel(val app: Application) : AndroidViewModel(app) {
+
+ private val mBalances = MutableLiveData<List<BalanceItem>>()
+ val balances: LiveData<List<BalanceItem>> = mBalances.distinctUntilChanged()
+
+ val devMode = MutableLiveData(BuildConfig.DEBUG)
+ val showProgressBar = MutableLiveData<Boolean>()
+
+ private var activeGetBalance = 0
+
+ private val walletBackendApi = WalletBackendApi(app, {
+ activeGetBalance = 0
+ loadBalances()
+ pendingOperationsManager.getPending()
+ }) {
+ Log.i(TAG, "Received notification from wallet-core")
+ loadBalances()
+ pendingOperationsManager.getPending()
+ }
+
+ private val mapper = ObjectMapper()
+ .registerModule(KotlinModule())
+ .configure(FAIL_ON_UNKNOWN_PROPERTIES, false)
+
+ val withdrawManager = WithdrawManager(walletBackendApi)
+ val paymentManager = PaymentManager(walletBackendApi, mapper)
+ val pendingOperationsManager: PendingOperationsManager =
+ PendingOperationsManager(walletBackendApi)
+ val historyManager = HistoryManager(walletBackendApi, mapper)
+
+ override fun onCleared() {
+ walletBackendApi.destroy()
+ super.onCleared()
+ }
+
+ @UiThread
+ fun loadBalances() {
+ if (activeGetBalance > 0) {
+ return
+ }
+ activeGetBalance++
+ showProgressBar.value = true
+ walletBackendApi.sendRequest("getBalances", null) { isError, result ->
+ activeGetBalance--
+ if (isError) {
+ return@sendRequest
+ }
+ val balanceList = mutableListOf<BalanceItem>()
+ val byCurrency = result.getJSONObject("byCurrency")
+ val currencyList = byCurrency.keys().asSequence().toList().sorted()
+ for (currency in currencyList) {
+ val jsonAmount = byCurrency.getJSONObject(currency)
+ .getJSONObject("available")
+ val amount = Amount.fromJson(jsonAmount)
+ val jsonAmountIncoming = byCurrency.getJSONObject(currency)
+ .getJSONObject("pendingIncoming")
+ val amountIncoming = Amount.fromJson(jsonAmountIncoming)
+ balanceList.add(BalanceItem(amount, amountIncoming))
+ }
+ mBalances.postValue(balanceList)
+ showProgressBar.postValue(false)
+ }
+ }
+
+ @UiThread
+ fun dangerouslyReset() {
+ walletBackendApi.sendRequest("reset", null)
+ withdrawManager.testWithdrawalInProgress.value = false
+ mBalances.value = emptyList()
+ }
+
+ fun startTunnel() {
+ walletBackendApi.sendRequest("startTunnel", null)
+ }
+
+ fun stopTunnel() {
+ walletBackendApi.sendRequest("stopTunnel", null)
+ }
+
+ fun tunnelResponse(resp: String) {
+ val respJson = JSONObject(resp)
+ walletBackendApi.sendRequest("tunnelResponse", respJson)
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/backend/WalletBackendApi.kt b/wallet/src/main/java/net/taler/wallet/backend/WalletBackendApi.kt
new file mode 100644
index 0000000..d447287
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/backend/WalletBackendApi.kt
@@ -0,0 +1,141 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+
+package net.taler.wallet.backend
+
+import android.app.Application
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.ServiceConnection
+import android.os.Handler
+import android.os.IBinder
+import android.os.Message
+import android.os.Messenger
+import android.util.Log
+import android.util.SparseArray
+import org.json.JSONObject
+import java.lang.ref.WeakReference
+import java.util.*
+
+class WalletBackendApi(
+ private val app: Application,
+ private val onConnected: (() -> Unit),
+ private val notificationHandler: (() -> Unit)
+) {
+
+ private var walletBackendMessenger: Messenger? = null
+ private val queuedMessages = LinkedList<Message>()
+ private val handlers = SparseArray<(isError: Boolean, message: JSONObject) -> Unit>()
+ private var nextRequestID = 1
+
+ private val walletBackendConn = object : ServiceConnection {
+ override fun onServiceDisconnected(p0: ComponentName?) {
+ Log.w(TAG, "wallet backend service disconnected (crash?)")
+ walletBackendMessenger = null
+ }
+
+ override fun onServiceConnected(componentName: ComponentName?, binder: IBinder?) {
+ Log.i(TAG, "connected to wallet backend service")
+ val bm = Messenger(binder)
+ walletBackendMessenger = bm
+ pumpQueue(bm)
+ val msg = Message.obtain(null, WalletBackendService.MSG_SUBSCRIBE_NOTIFY)
+ msg.replyTo = incomingMessenger
+ bm.send(msg)
+ onConnected.invoke()
+ }
+ }
+
+ private class IncomingHandler(strongApi: WalletBackendApi) : Handler() {
+ private val weakApi = WeakReference(strongApi)
+ override fun handleMessage(msg: Message) {
+ val api = weakApi.get() ?: return
+ when (msg.what) {
+ WalletBackendService.MSG_REPLY -> {
+ val requestID = msg.data.getInt("requestID", 0)
+ val operation = msg.data.getString("operation", "??")
+ Log.i(TAG, "got reply for operation $operation ($requestID)")
+ val h = api.handlers.get(requestID)
+ if (h == null) {
+ Log.e(TAG, "request ID not associated with a handler")
+ return
+ }
+ val response = msg.data.getString("response")
+ if (response == null) {
+ Log.e(TAG, "response did not contain response payload")
+ return
+ }
+ val isError = msg.data.getBoolean("isError")
+ val json = JSONObject(response)
+ h(isError, json)
+ }
+ WalletBackendService.MSG_NOTIFY -> {
+ api.notificationHandler.invoke()
+ }
+ }
+ }
+ }
+
+ private val incomingMessenger = Messenger(IncomingHandler(this))
+
+ init {
+ Intent(app, WalletBackendService::class.java).also { intent ->
+ app.bindService(intent, walletBackendConn, Context.BIND_AUTO_CREATE)
+ }
+ }
+
+ private fun pumpQueue(bm: Messenger) {
+ while (true) {
+ val msg = queuedMessages.pollFirst() ?: return
+ bm.send(msg)
+ }
+ }
+
+
+ fun sendRequest(
+ operation: String,
+ args: JSONObject?,
+ onResponse: (isError: Boolean, message: JSONObject) -> Unit = { _, _ -> }
+ ) {
+ val requestID = nextRequestID++
+ Log.i(TAG, "sending request for operation $operation ($requestID)")
+ val msg = Message.obtain(null, WalletBackendService.MSG_COMMAND)
+ handlers.put(requestID, onResponse)
+ msg.replyTo = incomingMessenger
+ val data = msg.data
+ data.putString("operation", operation)
+ data.putInt("requestID", requestID)
+ if (args != null) {
+ data.putString("args", args.toString())
+ }
+ val bm = walletBackendMessenger
+ if (bm != null) {
+ bm.send(msg)
+ } else {
+ queuedMessages.add(msg)
+ }
+ }
+
+ fun destroy() {
+ // FIXME: implement this!
+ }
+
+ companion object {
+ const val TAG = "WalletBackendApi"
+ }
+}
diff --git a/wallet/src/main/java/net/taler/wallet/backend/WalletBackendService.kt b/wallet/src/main/java/net/taler/wallet/backend/WalletBackendService.kt
new file mode 100644
index 0000000..0b71774
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/backend/WalletBackendService.kt
@@ -0,0 +1,239 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+
+package net.taler.wallet.backend
+
+import akono.AkonoJni
+import android.app.Service
+import android.content.Intent
+import android.os.Handler
+import android.os.IBinder
+import android.os.Message
+import android.os.Messenger
+import android.os.RemoteException
+import android.util.Log
+import net.taler.wallet.HostCardEmulatorService
+import org.json.JSONObject
+import java.lang.ref.WeakReference
+import java.util.*
+import java.util.concurrent.ConcurrentHashMap
+import kotlin.system.exitProcess
+
+private const val TAG = "taler-wallet-backend"
+
+class RequestData(val clientRequestID: Int, val messenger: Messenger)
+
+
+class WalletBackendService : Service() {
+ /**
+ * Target we publish for clients to send messages to IncomingHandler.
+ */
+ private val messenger: Messenger = Messenger(IncomingHandler(this))
+
+ private lateinit var akono: AkonoJni
+
+ private var initialized = false
+
+ private var nextRequestID = 1
+
+ private val requests = ConcurrentHashMap<Int, RequestData>()
+
+ private val subscribers = LinkedList<Messenger>()
+
+ override fun onCreate() {
+ val talerWalletAndroidCode = assets.open("taler-wallet-android.js").use {
+ it.readBytes().toString(Charsets.UTF_8)
+ }
+
+
+ Log.i(TAG, "onCreate in wallet backend service")
+ akono = AkonoJni()
+ akono.putModuleCode("taler-wallet-android", talerWalletAndroidCode)
+ akono.setMessageHandler(object : AkonoJni.MessageHandler {
+ override fun handleMessage(message: String) {
+ this@WalletBackendService.handleAkonoMessage(message)
+ }
+ })
+ akono.evalNodeCode("console.log('hello world from taler wallet-android')")
+ //akono.evalNodeCode("require('source-map-support').install();")
+ akono.evalNodeCode("require('akono');")
+ akono.evalNodeCode("tw = require('taler-wallet-android');")
+ akono.evalNodeCode("tw.installAndroidWalletListener();")
+ sendInitMessage()
+ initialized = true
+ super.onCreate()
+ }
+
+ private fun sendInitMessage() {
+ val msg = JSONObject()
+ msg.put("operation", "init")
+ val args = JSONObject()
+ msg.put("args", args)
+ args.put("persistentStoragePath", "${application.filesDir}/talerwalletdb-v30.json")
+ akono.sendMessage(msg.toString())
+ }
+
+ /**
+ * Handler of incoming messages from clients.
+ */
+ class IncomingHandler(
+ service: WalletBackendService
+ ) : Handler() {
+
+ private val serviceWeakRef = WeakReference(service)
+
+ override fun handleMessage(msg: Message) {
+ val svc = serviceWeakRef.get() ?: return
+ when (msg.what) {
+ MSG_COMMAND -> {
+ val data = msg.data
+ val serviceRequestID = svc.nextRequestID++
+ val clientRequestID = data.getInt("requestID", 0)
+ if (clientRequestID == 0) {
+ Log.e(TAG, "client requestID missing")
+ return
+ }
+ val args = data.getString("args")
+ val argsObj = if (args == null) {
+ JSONObject()
+ } else {
+ JSONObject(args)
+ }
+ val operation = data.getString("operation", "")
+ if (operation == "") {
+ Log.e(TAG, "client command missing")
+ return
+ }
+ Log.i(TAG, "got request for operation $operation")
+ val request = JSONObject()
+ request.put("operation", operation)
+ request.put("id", serviceRequestID)
+ request.put("args", argsObj)
+ svc.akono.sendMessage(request.toString(2))
+ Log.i(
+ TAG,
+ "mapping service request ID $serviceRequestID to client request ID $clientRequestID"
+ )
+ svc.requests[serviceRequestID] = RequestData(clientRequestID, msg.replyTo)
+ }
+ MSG_SUBSCRIBE_NOTIFY -> {
+ Log.i(TAG, "subscribing client")
+ val r = msg.replyTo
+ if (r == null) {
+ Log.e(
+ TAG,
+ "subscriber did not specify replyTo object in MSG_SUBSCRIBE_NOTIFY"
+ )
+ } else {
+ svc.subscribers.add(msg.replyTo)
+ }
+ }
+ MSG_UNSUBSCRIBE_NOTIFY -> {
+ Log.i(TAG, "unsubscribing client")
+ svc.subscribers.remove(msg.replyTo)
+ }
+ else -> {
+ Log.e(TAG, "unknown message from client")
+ super.handleMessage(msg)
+ }
+ }
+ }
+ }
+
+ override fun onBind(p0: Intent?): IBinder? {
+ return messenger.binder
+ }
+
+ private fun sendNotify() {
+ var rm: LinkedList<Messenger>? = null
+ for (s in subscribers) {
+ val m = Message.obtain(null, MSG_NOTIFY)
+ try {
+ s.send(m)
+ } catch (e: RemoteException) {
+ if (rm == null) {
+ rm = LinkedList()
+ }
+ rm.add(s)
+ subscribers.remove(s)
+ }
+ }
+ if (rm != null) {
+ for (s in rm) {
+ subscribers.remove(s)
+ }
+ }
+ }
+
+ private fun handleAkonoMessage(messageStr: String) {
+ Log.v(TAG, "got back message: $messageStr")
+ val message = JSONObject(messageStr)
+ when (message.getString("type")) {
+ "notification" -> {
+ sendNotify()
+ }
+ "tunnelHttp" -> {
+ Log.v(TAG, "got http tunnel request!")
+ Intent().also { intent ->
+ intent.action = HostCardEmulatorService.HTTP_TUNNEL_REQUEST
+ intent.putExtra("tunnelMessage", messageStr)
+ application.sendBroadcast(intent)
+ }
+ }
+ "response" -> {
+ when (val operation = message.getString("operation")) {
+ "init" -> {
+ Log.v(TAG, "got response for init operation")
+ sendNotify()
+ }
+ "reset" -> {
+ exitProcess(1)
+ }
+ else -> {
+ val id = message.getInt("id")
+ Log.v(TAG, "got response for operation $operation")
+ val rd = requests[id]
+ if (rd == null) {
+ Log.e(TAG, "wallet returned unknown request ID ($id)")
+ return
+ }
+ val m = Message.obtain(null, MSG_REPLY)
+ val b = m.data
+ if (message.has("result")) {
+ val respJson = message.getJSONObject("result")
+ b.putString("response", respJson.toString(2))
+ } else {
+ b.putString("response", "{}")
+ }
+ b.putBoolean("isError", message.getBoolean("isError"))
+ b.putInt("requestID", rd.clientRequestID)
+ b.putString("operation", operation)
+ rd.messenger.send(m)
+ }
+ }
+ }
+ }
+ }
+
+ companion object {
+ const val MSG_SUBSCRIBE_NOTIFY = 1
+ const val MSG_UNSUBSCRIBE_NOTIFY = 2
+ const val MSG_COMMAND = 3
+ const val MSG_REPLY = 4
+ const val MSG_NOTIFY = 5
+ }
+}
diff --git a/wallet/src/main/java/net/taler/wallet/crypto/Encoding.kt b/wallet/src/main/java/net/taler/wallet/crypto/Encoding.kt
new file mode 100644
index 0000000..25a59be
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/crypto/Encoding.kt
@@ -0,0 +1,134 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.crypto
+
+import java.io.ByteArrayOutputStream
+
+class EncodingException : Exception("Invalid encoding")
+
+
+object Base32Crockford {
+
+ private fun ByteArray.getIntAt(index: Int): Int {
+ val x = this[index].toInt()
+ return if (x >= 0) x else (x + 256)
+ }
+
+ private var encTable = "0123456789ABCDEFGHJKMNPQRSTVWXYZ"
+
+ fun encode(data: ByteArray): String {
+ val sb = StringBuilder()
+ val size = data.size
+ var bitBuf = 0
+ var numBits = 0
+ var pos = 0
+ while (pos < size || numBits > 0) {
+ if (pos < size && numBits < 5) {
+ val d = data.getIntAt(pos++)
+ bitBuf = (bitBuf shl 8) or d
+ numBits += 8
+ }
+ if (numBits < 5) {
+ // zero-padding
+ bitBuf = bitBuf shl (5 - numBits)
+ numBits = 5
+ }
+ val v = bitBuf.ushr(numBits - 5) and 31
+ sb.append(encTable[v])
+ numBits -= 5
+ }
+ return sb.toString()
+ }
+
+ fun decode(encoded: String, out: ByteArrayOutputStream) {
+ val size = encoded.length
+ var bitpos = 0
+ var bitbuf = 0
+ var readPosition = 0
+
+ while (readPosition < size || bitpos > 0) {
+ //println("at position $readPosition with bitpos $bitpos")
+ if (readPosition < size) {
+ val v = getValue(encoded[readPosition++])
+ bitbuf = (bitbuf shl 5) or v
+ bitpos += 5
+ }
+ while (bitpos >= 8) {
+ val d = (bitbuf ushr (bitpos - 8)) and 0xFF
+ out.write(d)
+ bitpos -= 8
+ }
+ if (readPosition == size && bitpos > 0) {
+ bitbuf = (bitbuf shl (8 - bitpos)) and 0xFF
+ bitpos = if (bitbuf == 0) 0 else 8
+ }
+ }
+ }
+
+ fun decode(encoded: String): ByteArray {
+ val out = ByteArrayOutputStream()
+ decode(encoded, out)
+ return out.toByteArray()
+ }
+
+ private fun getValue(chr: Char): Int {
+ var a = chr
+ when (a) {
+ 'O', 'o' -> a = '0'
+ 'i', 'I', 'l', 'L' -> a = '1'
+ 'u', 'U' -> a = 'V'
+ }
+ if (a in '0'..'9')
+ return a - '0'
+ if (a in 'a'..'z')
+ a = Character.toUpperCase(a)
+ var dec = 0
+ if (a in 'A'..'Z') {
+ if ('I' < a) dec++
+ if ('L' < a) dec++
+ if ('O' < a) dec++
+ if ('U' < a) dec++
+ return a - 'A' + 10 - dec
+ }
+ throw EncodingException()
+ }
+
+ /**
+ * Compute the length of the resulting string when encoding data of the given size
+ * in bytes.
+ *
+ * @param dataSize size of the data to encode in bytes
+ * @return size of the string that would result from encoding
+ */
+ @Suppress("unused")
+ fun calculateEncodedStringLength(dataSize: Int): Int {
+ return (dataSize * 8 + 4) / 5
+ }
+
+ /**
+ * Compute the length of the resulting data in bytes when decoding a (valid) string of the
+ * given size.
+ *
+ * @param stringSize size of the string to decode
+ * @return size of the resulting data in bytes
+ */
+ @Suppress("unused")
+ fun calculateDecodedDataLength(stringSize: Int): Int {
+ return stringSize * 5 / 8
+ }
+}
+
diff --git a/wallet/src/main/java/net/taler/wallet/history/HistoryEvent.kt b/wallet/src/main/java/net/taler/wallet/history/HistoryEvent.kt
new file mode 100644
index 0000000..9e5c99d
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/history/HistoryEvent.kt
@@ -0,0 +1,452 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.history
+
+import androidx.annotation.DrawableRes
+import androidx.annotation.LayoutRes
+import androidx.annotation.StringRes
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties
+import com.fasterxml.jackson.annotation.JsonInclude
+import com.fasterxml.jackson.annotation.JsonInclude.Include.NON_EMPTY
+import com.fasterxml.jackson.annotation.JsonProperty
+import com.fasterxml.jackson.annotation.JsonSubTypes
+import com.fasterxml.jackson.annotation.JsonSubTypes.Type
+import com.fasterxml.jackson.annotation.JsonTypeInfo
+import com.fasterxml.jackson.annotation.JsonTypeInfo.As.PROPERTY
+import com.fasterxml.jackson.annotation.JsonTypeInfo.Id.NAME
+import com.fasterxml.jackson.annotation.JsonTypeName
+import net.taler.wallet.ParsedAmount.Companion.parseAmount
+import net.taler.wallet.R
+import org.json.JSONObject
+
+enum class ReserveType {
+ /**
+ * Manually created.
+ */
+ @JsonProperty("manual")
+ MANUAL,
+ /**
+ * Withdrawn from a bank that has "tight" Taler integration
+ */
+ @JsonProperty("taler-bank-withdraw")
+ @Suppress("unused")
+ TALER_BANK_WITHDRAW,
+}
+
+@JsonInclude(NON_EMPTY)
+class ReserveCreationDetail(val type: ReserveType, val bankUrl: String?)
+
+enum class RefreshReason {
+ @JsonProperty("manual")
+ @Suppress("unused")
+ MANUAL,
+ @JsonProperty("pay")
+ PAY,
+ @JsonProperty("refund")
+ @Suppress("unused")
+ REFUND,
+ @JsonProperty("abort-pay")
+ @Suppress("unused")
+ ABORT_PAY,
+ @JsonProperty("recoup")
+ @Suppress("unused")
+ RECOUP,
+ @JsonProperty("backup-restored")
+ @Suppress("unused")
+ BACKUP_RESTORED
+}
+
+
+@JsonInclude(NON_EMPTY)
+class Timestamp(
+ @JsonProperty("t_ms")
+ val ms: Long
+)
+
+@JsonInclude(NON_EMPTY)
+class ReserveShortInfo(
+ /**
+ * The exchange that the reserve will be at.
+ */
+ val exchangeBaseUrl: String,
+ /**
+ * Key to query more details
+ */
+ val reservePub: String,
+ /**
+ * Detail about how the reserve has been created.
+ */
+ val reserveCreationDetail: ReserveCreationDetail
+)
+
+typealias History = ArrayList<HistoryEvent>
+
+@JsonTypeInfo(
+ use = NAME,
+ include = PROPERTY,
+ property = "type",
+ defaultImpl = HistoryUnknownEvent::class
+)
+/** missing:
+AuditorComplaintSent = "auditor-complained-sent",
+AuditorComplaintProcessed = "auditor-complaint-processed",
+AuditorTrustAdded = "auditor-trust-added",
+AuditorTrustRemoved = "auditor-trust-removed",
+ExchangeTermsAccepted = "exchange-terms-accepted",
+ExchangePolicyChanged = "exchange-policy-changed",
+ExchangeTrustAdded = "exchange-trust-added",
+ExchangeTrustRemoved = "exchange-trust-removed",
+FundsDepositedToSelf = "funds-deposited-to-self",
+FundsRecouped = "funds-recouped",
+ReserveCreated = "reserve-created",
+ */
+@JsonSubTypes(
+ Type(value = ExchangeAddedEvent::class, name = "exchange-added"),
+ Type(value = ExchangeUpdatedEvent::class, name = "exchange-updated"),
+ Type(value = ReserveBalanceUpdatedEvent::class, name = "reserve-balance-updated"),
+ Type(value = HistoryWithdrawnEvent::class, name = "withdrawn"),
+ Type(value = HistoryOrderAcceptedEvent::class, name = "order-accepted"),
+ Type(value = HistoryOrderRefusedEvent::class, name = "order-refused"),
+ Type(value = HistoryOrderRedirectedEvent::class, name = "order-redirected"),
+ Type(value = HistoryPaymentSentEvent::class, name = "payment-sent"),
+ Type(value = HistoryPaymentAbortedEvent::class, name = "payment-aborted"),
+ Type(value = HistoryTipAcceptedEvent::class, name = "tip-accepted"),
+ Type(value = HistoryTipDeclinedEvent::class, name = "tip-declined"),
+ Type(value = HistoryRefundedEvent::class, name = "refund"),
+ Type(value = HistoryRefreshedEvent::class, name = "refreshed")
+)
+@JsonIgnoreProperties(
+ value = [
+ "eventId"
+ ]
+)
+abstract class HistoryEvent(
+ val timestamp: Timestamp,
+ @get:LayoutRes
+ open val layout: Int = R.layout.history_row,
+ @get:StringRes
+ open val title: Int = 0,
+ @get:DrawableRes
+ open val icon: Int = R.drawable.ic_account_balance,
+ open val showToUser: Boolean = false
+) {
+ open lateinit var json: JSONObject
+}
+
+
+class HistoryUnknownEvent(timestamp: Timestamp) : HistoryEvent(timestamp) {
+ override val title = R.string.history_event_unknown
+}
+
+@JsonTypeName("exchange-added")
+class ExchangeAddedEvent(
+ timestamp: Timestamp,
+ val exchangeBaseUrl: String,
+ val builtIn: Boolean
+) : HistoryEvent(timestamp) {
+ override val title = R.string.history_event_exchange_added
+}
+
+@JsonTypeName("exchange-updated")
+class ExchangeUpdatedEvent(
+ timestamp: Timestamp,
+ val exchangeBaseUrl: String
+) : HistoryEvent(timestamp) {
+ override val title = R.string.history_event_exchange_updated
+}
+
+
+@JsonTypeName("reserve-balance-updated")
+class ReserveBalanceUpdatedEvent(
+ timestamp: Timestamp,
+ val newHistoryTransactions: List<ReserveTransaction>,
+ /**
+ * Condensed information about the reserve.
+ */
+ val reserveShortInfo: ReserveShortInfo,
+ /**
+ * Amount currently left in the reserve.
+ */
+ val amountReserveBalance: String,
+ /**
+ * Amount we expected to be in the reserve at that time,
+ * considering ongoing withdrawals from that reserve.
+ */
+ val amountExpected: String
+) : HistoryEvent(timestamp) {
+ override val title = R.string.history_event_reserve_balance_updated
+}
+
+@JsonTypeName("withdrawn")
+class HistoryWithdrawnEvent(
+ timestamp: Timestamp,
+ /**
+ * Exchange that was withdrawn from.
+ */
+ val exchangeBaseUrl: String,
+ /**
+ * Unique identifier for the withdrawal session, can be used to
+ * query more detailed information from the wallet.
+ */
+ val withdrawSessionId: String,
+ val withdrawalSource: WithdrawalSource,
+ /**
+ * Amount that has been subtracted from the reserve's balance
+ * for this withdrawal.
+ */
+ val amountWithdrawnRaw: String,
+ /**
+ * Amount that actually was added to the wallet's balance.
+ */
+ val amountWithdrawnEffective: String
+) : HistoryEvent(timestamp) {
+ override val layout = R.layout.history_receive
+ override val title = R.string.history_event_withdrawn
+ override val icon = R.drawable.history_withdrawn
+ override val showToUser = true
+}
+
+@JsonTypeName("order-accepted")
+class HistoryOrderAcceptedEvent(
+ timestamp: Timestamp,
+ /**
+ * Condensed info about the order.
+ */
+ val orderShortInfo: OrderShortInfo
+) : HistoryEvent(timestamp) {
+ override val icon = R.drawable.ic_add_circle
+ override val title = R.string.history_event_order_accepted
+}
+
+@JsonTypeName("order-refused")
+class HistoryOrderRefusedEvent(
+ timestamp: Timestamp,
+ /**
+ * Condensed info about the order.
+ */
+ val orderShortInfo: OrderShortInfo
+) : HistoryEvent(timestamp) {
+ override val icon = R.drawable.ic_cancel
+ override val title = R.string.history_event_order_refused
+}
+
+@JsonTypeName("payment-sent")
+class HistoryPaymentSentEvent(
+ timestamp: Timestamp,
+ /**
+ * Condensed info about the order that we already paid for.
+ */
+ val orderShortInfo: OrderShortInfo,
+ /**
+ * Set to true if the payment has been previously sent
+ * to the merchant successfully, possibly with a different session ID.
+ */
+ val replay: Boolean,
+ /**
+ * Number of coins that were involved in the payment.
+ */
+ val numCoins: Int,
+ /**
+ * Amount that was paid, including deposit and wire fees.
+ */
+ val amountPaidWithFees: String,
+ /**
+ * Session ID that the payment was (re-)submitted under.
+ */
+ val sessionId: String?
+) : HistoryEvent(timestamp) {
+ override val layout = R.layout.history_payment
+ override val title = R.string.history_event_payment_sent
+ override val icon = R.drawable.ic_cash_usd_outline
+ override val showToUser = true
+}
+
+@JsonTypeName("payment-aborted")
+class HistoryPaymentAbortedEvent(
+ timestamp: Timestamp,
+ /**
+ * Condensed info about the order that we already paid for.
+ */
+ val orderShortInfo: OrderShortInfo,
+ /**
+ * Amount that was lost due to refund and refreshing fees.
+ */
+ val amountLost: String
+) : HistoryEvent(timestamp) {
+ override val layout = R.layout.history_payment
+ override val title = R.string.history_event_payment_aborted
+ override val icon = R.drawable.history_payment_aborted
+ override val showToUser = true
+}
+
+@JsonTypeName("refreshed")
+class HistoryRefreshedEvent(
+ timestamp: Timestamp,
+ /**
+ * Amount that is now available again because it has
+ * been refreshed.
+ */
+ val amountRefreshedEffective: String,
+ /**
+ * Amount that we spent for refreshing.
+ */
+ val amountRefreshedRaw: String,
+ /**
+ * Why was the refreshing done?
+ */
+ val refreshReason: RefreshReason,
+ val numInputCoins: Int,
+ val numRefreshedInputCoins: Int,
+ val numOutputCoins: Int,
+ /**
+ * Identifier for a refresh group, contains one or
+ * more refresh session IDs.
+ */
+ val refreshGroupId: String
+) : HistoryEvent(timestamp) {
+ override val layout = R.layout.history_payment
+ override val icon = R.drawable.history_refresh
+ override val title = R.string.history_event_refreshed
+ override val showToUser =
+ !(parseAmount(amountRefreshedRaw) - parseAmount(amountRefreshedEffective)).isZero()
+}
+
+@JsonTypeName("order-redirected")
+class HistoryOrderRedirectedEvent(
+ timestamp: Timestamp,
+ /**
+ * Condensed info about the new order that contains a
+ * product (identified by the fulfillment URL) that we've already paid for.
+ */
+ val newOrderShortInfo: OrderShortInfo,
+ /**
+ * Condensed info about the order that we already paid for.
+ */
+ val alreadyPaidOrderShortInfo: OrderShortInfo
+) : HistoryEvent(timestamp) {
+ override val icon = R.drawable.ic_directions
+ override val title = R.string.history_event_order_redirected
+}
+
+@JsonTypeName("tip-accepted")
+class HistoryTipAcceptedEvent(
+ timestamp: Timestamp,
+ /**
+ * Unique identifier for the tip to query more information.
+ */
+ val tipId: String,
+ /**
+ * Raw amount of the tip, without extra fees that apply.
+ */
+ val tipRaw: String
+) : HistoryEvent(timestamp) {
+ override val icon = R.drawable.history_tip_accepted
+ override val title = R.string.history_event_tip_accepted
+ override val layout = R.layout.history_receive
+ override val showToUser = true
+}
+
+@JsonTypeName("tip-declined")
+class HistoryTipDeclinedEvent(
+ timestamp: Timestamp,
+ /**
+ * Unique identifier for the tip to query more information.
+ */
+ val tipId: String,
+ /**
+ * Raw amount of the tip, without extra fees that apply.
+ */
+ val tipAmount: String
+) : HistoryEvent(timestamp) {
+ override val icon = R.drawable.history_tip_declined
+ override val title = R.string.history_event_tip_declined
+ override val layout = R.layout.history_receive
+ override val showToUser = true
+}
+
+@JsonTypeName("refund")
+class HistoryRefundedEvent(
+ timestamp: Timestamp,
+ val orderShortInfo: OrderShortInfo,
+ /**
+ * Unique identifier for this refund.
+ * (Identifies multiple refund permissions that were obtained at once.)
+ */
+ val refundGroupId: String,
+ /**
+ * Part of the refund that couldn't be applied because
+ * the refund permissions were expired.
+ */
+ val amountRefundedInvalid: String,
+ /**
+ * Amount that has been refunded by the merchant.
+ */
+ val amountRefundedRaw: String,
+ /**
+ * Amount will be added to the wallet's balance after fees and refreshing.
+ */
+ val amountRefundedEffective: String
+) : HistoryEvent(timestamp) {
+ override val icon = R.drawable.history_refund
+ override val title = R.string.history_event_refund
+ override val layout = R.layout.history_receive
+ override val showToUser = true
+}
+
+@JsonTypeInfo(
+ use = NAME,
+ include = PROPERTY,
+ property = "type"
+)
+@JsonSubTypes(
+ Type(value = WithdrawalSourceReserve::class, name = "reserve")
+)
+abstract class WithdrawalSource
+
+@Suppress("unused")
+@JsonTypeName("tip")
+class WithdrawalSourceTip(
+ val tipId: String
+) : WithdrawalSource()
+
+@JsonTypeName("reserve")
+class WithdrawalSourceReserve(
+ val reservePub: String
+) : WithdrawalSource()
+
+data class OrderShortInfo(
+ /**
+ * Wallet-internal identifier of the proposal.
+ */
+ val proposalId: String,
+ /**
+ * Order ID, uniquely identifies the order within a merchant instance.
+ */
+ val orderId: String,
+ /**
+ * Base URL of the merchant.
+ */
+ val merchantBaseUrl: String,
+ /**
+ * Amount that must be paid for the contract.
+ */
+ val amount: String,
+ /**
+ * Summary of the proposal, given by the merchant.
+ */
+ val summary: String
+)
diff --git a/wallet/src/main/java/net/taler/wallet/history/HistoryManager.kt b/wallet/src/main/java/net/taler/wallet/history/HistoryManager.kt
new file mode 100644
index 0000000..c350daa
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/history/HistoryManager.kt
@@ -0,0 +1,71 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.history
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.asLiveData
+import androidx.lifecycle.switchMap
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.flow.callbackFlow
+import kotlinx.coroutines.flow.onCompletion
+import kotlinx.coroutines.flow.onStart
+import net.taler.wallet.backend.WalletBackendApi
+
+@Suppress("EXPERIMENTAL_API_USAGE")
+class HistoryManager(
+ private val walletBackendApi: WalletBackendApi,
+ private val mapper: ObjectMapper
+) {
+
+ private val mProgress = MutableLiveData<Boolean>()
+ val progress: LiveData<Boolean> = mProgress
+
+ val showAll = MutableLiveData<Boolean>()
+
+ val history: LiveData<History> = showAll.switchMap { showAll ->
+ loadHistory(showAll)
+ .onStart { mProgress.postValue(true) }
+ .onCompletion { mProgress.postValue(false) }
+ .asLiveData(Dispatchers.IO)
+ }
+
+ private fun loadHistory(showAll: Boolean) = callbackFlow {
+ walletBackendApi.sendRequest("getHistory", null) { isError, result ->
+ if (isError) {
+ // TODO show error message in [WalletHistory] fragment
+ close()
+ return@sendRequest
+ }
+ val history = History()
+ val json = result.getJSONArray("history")
+ for (i in 0 until json.length()) {
+ val event: HistoryEvent = mapper.readValue(json.getString(i))
+ event.json = json.getJSONObject(i)
+ history.add(event)
+ }
+ history.reverse() // show latest first
+ offer(if (showAll) history else history.filter { it.showToUser } as History)
+ close()
+ }
+ awaitClose()
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/history/JsonDialogFragment.kt b/wallet/src/main/java/net/taler/wallet/history/JsonDialogFragment.kt
new file mode 100644
index 0000000..f51dba9
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/history/JsonDialogFragment.kt
@@ -0,0 +1,50 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.history
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.DialogFragment
+import kotlinx.android.synthetic.main.fragment_json.*
+import net.taler.wallet.R
+
+class JsonDialogFragment : DialogFragment() {
+
+ companion object {
+ fun new(json: String): JsonDialogFragment {
+ return JsonDialogFragment().apply {
+ arguments = Bundle().apply { putString("json", json) }
+ }
+ }
+ }
+
+ override fun onCreateView(
+ inflater: LayoutInflater,
+ container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_json, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ val json = arguments!!.getString("json")
+ jsonView.text = json
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/history/ReserveTransaction.kt b/wallet/src/main/java/net/taler/wallet/history/ReserveTransaction.kt
new file mode 100644
index 0000000..45c539c
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/history/ReserveTransaction.kt
@@ -0,0 +1,58 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.history
+
+import com.fasterxml.jackson.annotation.JsonProperty
+import com.fasterxml.jackson.annotation.JsonSubTypes
+import com.fasterxml.jackson.annotation.JsonTypeInfo
+import com.fasterxml.jackson.annotation.JsonTypeInfo.As.PROPERTY
+import com.fasterxml.jackson.annotation.JsonTypeInfo.Id.NAME
+import com.fasterxml.jackson.annotation.JsonTypeName
+
+
+@JsonTypeInfo(
+ use = NAME,
+ include = PROPERTY,
+ property = "type"
+)
+@JsonSubTypes(
+ JsonSubTypes.Type(value = ReserveDepositTransaction::class, name = "DEPOSIT")
+)
+abstract class ReserveTransaction
+
+
+@JsonTypeName("DEPOSIT")
+class ReserveDepositTransaction(
+ /**
+ * Amount withdrawn.
+ */
+ val amount: String,
+ /**
+ * Sender account payto://-URL
+ */
+ @JsonProperty("sender_account_url")
+ val senderAccountUrl: String,
+ /**
+ * Transfer details uniquely identifying the transfer.
+ */
+ @JsonProperty("wire_reference")
+ val wireReference: String,
+ /**
+ * Timestamp of the incoming wire transfer.
+ */
+ val timestamp: Timestamp
+) : ReserveTransaction()
diff --git a/wallet/src/main/java/net/taler/wallet/history/WalletHistoryAdapter.kt b/wallet/src/main/java/net/taler/wallet/history/WalletHistoryAdapter.kt
new file mode 100644
index 0000000..71bdebc
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/history/WalletHistoryAdapter.kt
@@ -0,0 +1,243 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.history
+
+import android.annotation.SuppressLint
+import android.graphics.Paint.STRIKE_THRU_TEXT_FLAG
+import android.text.format.DateUtils.DAY_IN_MILLIS
+import android.text.format.DateUtils.FORMAT_ABBREV_MONTH
+import android.text.format.DateUtils.FORMAT_ABBREV_RELATIVE
+import android.text.format.DateUtils.FORMAT_NO_YEAR
+import android.text.format.DateUtils.FORMAT_SHOW_DATE
+import android.text.format.DateUtils.FORMAT_SHOW_TIME
+import android.text.format.DateUtils.MINUTE_IN_MILLIS
+import android.text.format.DateUtils.formatDateTime
+import android.text.format.DateUtils.getRelativeTimeSpanString
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.annotation.CallSuper
+import androidx.core.net.toUri
+import androidx.recyclerview.widget.RecyclerView.Adapter
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
+import net.taler.wallet.BuildConfig
+import net.taler.wallet.ParsedAmount
+import net.taler.wallet.ParsedAmount.Companion.parseAmount
+import net.taler.wallet.R
+
+
+internal class WalletHistoryAdapter(
+ private val listener: OnEventClickListener,
+ private var history: History = History()
+) : Adapter<WalletHistoryAdapter.HistoryEventViewHolder>() {
+
+ init {
+ setHasStableIds(false)
+ }
+
+ override fun getItemViewType(position: Int): Int = history[position].layout
+
+ override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): HistoryEventViewHolder {
+ val view = LayoutInflater.from(parent.context).inflate(viewType, parent, false)
+ return when (viewType) {
+ R.layout.history_receive -> HistoryReceiveViewHolder(view)
+ R.layout.history_payment -> HistoryPaymentViewHolder(view)
+ else -> GenericHistoryEventViewHolder(view)
+ }
+ }
+
+ override fun getItemCount(): Int = history.size
+
+ override fun onBindViewHolder(holder: HistoryEventViewHolder, position: Int) {
+ val event = history[position]
+ holder.bind(event)
+ }
+
+ fun update(updatedHistory: History) {
+ this.history = updatedHistory
+ this.notifyDataSetChanged()
+ }
+
+ internal abstract inner class HistoryEventViewHolder(protected val v: View) : ViewHolder(v) {
+
+ private val icon: ImageView = v.findViewById(R.id.icon)
+ protected val title: TextView = v.findViewById(R.id.title)
+ private val time: TextView = v.findViewById(R.id.time)
+
+ @CallSuper
+ open fun bind(event: HistoryEvent) {
+ if (BuildConfig.DEBUG) { // doesn't produce recycling issues, no need to cover all cases
+ v.setOnClickListener { listener.onEventClicked(event) }
+ } else {
+ v.background = null
+ }
+ icon.setImageResource(event.icon)
+ if (event.title == 0) title.text = event::class.java.simpleName
+ else title.setText(event.title)
+ time.text = getRelativeTime(event.timestamp.ms)
+ }
+
+ private fun getRelativeTime(timestamp: Long): CharSequence {
+ val now = System.currentTimeMillis()
+ return if (now - timestamp > DAY_IN_MILLIS * 2) {
+ formatDateTime(
+ v.context,
+ timestamp,
+ FORMAT_SHOW_TIME or FORMAT_SHOW_DATE or FORMAT_ABBREV_MONTH or FORMAT_NO_YEAR
+ )
+ } else {
+ getRelativeTimeSpanString(timestamp, now, MINUTE_IN_MILLIS, FORMAT_ABBREV_RELATIVE)
+ }
+ }
+
+ }
+
+ internal inner class GenericHistoryEventViewHolder(v: View) : HistoryEventViewHolder(v) {
+
+ private val info: TextView = v.findViewById(R.id.info)
+
+ override fun bind(event: HistoryEvent) {
+ super.bind(event)
+ info.text = when (event) {
+ is ExchangeAddedEvent -> event.exchangeBaseUrl
+ is ExchangeUpdatedEvent -> event.exchangeBaseUrl
+ is ReserveBalanceUpdatedEvent -> parseAmount(event.amountReserveBalance).toString()
+ is HistoryPaymentSentEvent -> event.orderShortInfo.summary
+ is HistoryOrderAcceptedEvent -> event.orderShortInfo.summary
+ is HistoryOrderRefusedEvent -> event.orderShortInfo.summary
+ is HistoryOrderRedirectedEvent -> event.newOrderShortInfo.summary
+ else -> ""
+ }
+ }
+
+ }
+
+ internal inner class HistoryReceiveViewHolder(v: View) : HistoryEventViewHolder(v) {
+
+ private val summary: TextView = v.findViewById(R.id.summary)
+ private val amountWithdrawn: TextView = v.findViewById(R.id.amountWithdrawn)
+ private val feeLabel: TextView = v.findViewById(R.id.feeLabel)
+ private val fee: TextView = v.findViewById(R.id.fee)
+
+ override fun bind(event: HistoryEvent) {
+ super.bind(event)
+ when (event) {
+ is HistoryWithdrawnEvent -> bind(event)
+ is HistoryRefundedEvent -> bind(event)
+ is HistoryTipAcceptedEvent -> bind(event)
+ is HistoryTipDeclinedEvent -> bind(event)
+ }
+ }
+
+ private fun bind(event: HistoryWithdrawnEvent) {
+ title.text = getHostname(event.exchangeBaseUrl)
+ summary.setText(event.title)
+
+ val parsedEffective = parseAmount(event.amountWithdrawnEffective)
+ val parsedRaw = parseAmount(event.amountWithdrawnRaw)
+ showAmounts(parsedEffective, parsedRaw)
+ }
+
+ private fun bind(event: HistoryRefundedEvent) {
+ title.text = event.orderShortInfo.summary
+ summary.setText(event.title)
+
+ val parsedEffective = parseAmount(event.amountRefundedEffective)
+ val parsedRaw = parseAmount(event.amountRefundedRaw)
+ showAmounts(parsedEffective, parsedRaw)
+ }
+
+ private fun bind(event: HistoryTipAcceptedEvent) {
+ title.setText(event.title)
+ summary.text = null
+ val amount = parseAmount(event.tipRaw)
+ showAmounts(amount, amount)
+ }
+
+ private fun bind(event: HistoryTipDeclinedEvent) {
+ title.setText(event.title)
+ summary.text = null
+ val amount = parseAmount(event.tipAmount)
+ showAmounts(amount, amount)
+ amountWithdrawn.paintFlags = amountWithdrawn.paintFlags or STRIKE_THRU_TEXT_FLAG
+ }
+
+ private fun showAmounts(effective: ParsedAmount, raw: ParsedAmount) {
+ @SuppressLint("SetTextI18n")
+ amountWithdrawn.text = "+$raw"
+ val calculatedFee = raw - effective
+ if (calculatedFee.isZero()) {
+ fee.visibility = GONE
+ feeLabel.visibility = GONE
+ } else {
+ @SuppressLint("SetTextI18n")
+ fee.text = "-$calculatedFee"
+ fee.visibility = VISIBLE
+ feeLabel.visibility = VISIBLE
+ }
+ amountWithdrawn.paintFlags = fee.paintFlags
+ }
+
+ private fun getHostname(url: String): String {
+ return url.toUri().host!!
+ }
+
+ }
+
+ internal inner class HistoryPaymentViewHolder(v: View) : HistoryEventViewHolder(v) {
+
+ private val summary: TextView = v.findViewById(R.id.summary)
+ private val amountPaidWithFees: TextView = v.findViewById(R.id.amountPaidWithFees)
+
+ override fun bind(event: HistoryEvent) {
+ super.bind(event)
+ summary.setText(event.title)
+ when (event) {
+ is HistoryPaymentSentEvent -> bind(event)
+ is HistoryPaymentAbortedEvent -> bind(event)
+ is HistoryRefreshedEvent -> bind(event)
+ }
+ }
+
+ private fun bind(event: HistoryPaymentSentEvent) {
+ title.text = event.orderShortInfo.summary
+ @SuppressLint("SetTextI18n")
+ amountPaidWithFees.text = "-${parseAmount(event.amountPaidWithFees)}"
+ }
+
+ private fun bind(event: HistoryPaymentAbortedEvent) {
+ title.text = event.orderShortInfo.summary
+ @SuppressLint("SetTextI18n")
+ amountPaidWithFees.text = "-${parseAmount(event.amountLost)}"
+ }
+
+ private fun bind(event: HistoryRefreshedEvent) {
+ title.text = ""
+ val fee =
+ parseAmount(event.amountRefreshedRaw) - parseAmount(event.amountRefreshedEffective)
+ @SuppressLint("SetTextI18n")
+ if (fee.isZero()) amountPaidWithFees.text = null
+ else amountPaidWithFees.text = "-$fee"
+ }
+
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/history/WalletHistoryFragment.kt b/wallet/src/main/java/net/taler/wallet/history/WalletHistoryFragment.kt
new file mode 100644
index 0000000..4f8ab82
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/history/WalletHistoryFragment.kt
@@ -0,0 +1,115 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.history
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.Menu
+import android.view.MenuInflater
+import android.view.MenuItem
+import android.view.View
+import android.view.View.INVISIBLE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.LinearLayoutManager.VERTICAL
+import kotlinx.android.synthetic.main.fragment_show_balance.*
+import kotlinx.android.synthetic.main.fragment_show_history.*
+import net.taler.wallet.R
+import net.taler.wallet.WalletViewModel
+
+interface OnEventClickListener {
+ fun onEventClicked(event: HistoryEvent)
+}
+
+class WalletHistoryFragment : Fragment(), OnEventClickListener {
+
+ private val model: WalletViewModel by activityViewModels()
+ private val historyManager by lazy { model.historyManager }
+ private lateinit var showAllItem: MenuItem
+ private var reloadHistoryItem: MenuItem? = null
+ private val historyAdapter = WalletHistoryAdapter(this)
+
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+ setHasOptionsMenu(true)
+ }
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_show_history, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ historyList.apply {
+ layoutManager = LinearLayoutManager(context)
+ adapter = historyAdapter
+ addItemDecoration(DividerItemDecoration(context, VERTICAL))
+ }
+
+ model.devMode.observe(viewLifecycleOwner, Observer { enabled ->
+ reloadHistoryItem?.isVisible = enabled
+ })
+ historyManager.progress.observe(viewLifecycleOwner, Observer { show ->
+ historyProgressBar.visibility = if (show) VISIBLE else INVISIBLE
+ })
+ historyManager.history.observe(viewLifecycleOwner, Observer { history ->
+ historyEmptyState.visibility = if (history.isEmpty()) VISIBLE else INVISIBLE
+ historyAdapter.update(history)
+ })
+
+ // kicks off initial load, needs to be adapted if showAll state is ever saved
+ if (savedInstanceState == null) historyManager.showAll.value = model.devMode.value
+ }
+
+ override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
+ inflater.inflate(R.menu.history, menu)
+ showAllItem = menu.findItem(R.id.show_all_history)
+ showAllItem.isChecked = historyManager.showAll.value == true
+ reloadHistoryItem = menu.findItem(R.id.reload_history).apply {
+ isVisible = model.devMode.value!!
+ }
+ }
+
+ override fun onOptionsItemSelected(item: MenuItem): Boolean {
+ return when (item.itemId) {
+ R.id.show_all_history -> {
+ item.isChecked = !item.isChecked
+ historyManager.showAll.value = item.isChecked
+ true
+ }
+ R.id.reload_history -> {
+ historyManager.showAll.value = showAllItem.isChecked
+ true
+ }
+ else -> super.onOptionsItemSelected(item)
+ }
+ }
+
+ override fun onEventClicked(event: HistoryEvent) {
+ if (model.devMode.value != true) return
+ JsonDialogFragment.new(event.json.toString(4))
+ .show(parentFragmentManager, null)
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/payment/AlreadyPaidFragment.kt b/wallet/src/main/java/net/taler/wallet/payment/AlreadyPaidFragment.kt
new file mode 100644
index 0000000..33e3a1d
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/payment/AlreadyPaidFragment.kt
@@ -0,0 +1,47 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.payment
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.navigation.fragment.findNavController
+import kotlinx.android.synthetic.main.fragment_already_paid.*
+import net.taler.wallet.R
+
+/**
+ * Display the message that the user already paid for the order
+ * that the merchant is proposing.
+ */
+class AlreadyPaidFragment : Fragment() {
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_already_paid, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ backButton.setOnClickListener {
+ findNavController().navigateUp()
+ }
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/payment/ContractTerms.kt b/wallet/src/main/java/net/taler/wallet/payment/ContractTerms.kt
new file mode 100644
index 0000000..da91dea
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/payment/ContractTerms.kt
@@ -0,0 +1,56 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.payment
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties
+import com.fasterxml.jackson.annotation.JsonProperty
+import net.taler.wallet.Amount
+
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class ContractTerms(
+ val summary: String,
+ val products: List<ContractProduct>,
+ val amount: Amount
+)
+
+interface Product {
+ val id: String?
+ val description: String
+ val price: Amount
+ val location: String?
+ val image: String?
+}
+
+@JsonIgnoreProperties("totalPrice")
+data class ContractProduct(
+ @JsonProperty("product_id")
+ override val id: String?,
+ override val description: String,
+ override val price: Amount,
+ @JsonProperty("delivery_location")
+ override val location: String?,
+ override val image: String?,
+ val quantity: Int
+) : Product {
+
+ val totalPrice: Amount by lazy {
+ val amount = price.amount.toDouble() * quantity
+ Amount(price.currency, amount.toString())
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/payment/PaymentManager.kt b/wallet/src/main/java/net/taler/wallet/payment/PaymentManager.kt
new file mode 100644
index 0000000..ee0edaf
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/payment/PaymentManager.kt
@@ -0,0 +1,160 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.payment
+
+import android.util.Log
+import androidx.annotation.UiThread
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import net.taler.wallet.Amount
+import net.taler.wallet.TAG
+import net.taler.wallet.backend.WalletBackendApi
+import org.json.JSONObject
+import java.net.MalformedURLException
+
+val REGEX_PRODUCT_IMAGE = Regex("^data:image/(jpeg|png);base64,([A-Za-z0-9+/=]+)$")
+
+class PaymentManager(
+ private val walletBackendApi: WalletBackendApi,
+ private val mapper: ObjectMapper
+) {
+
+ private val mPayStatus = MutableLiveData<PayStatus>(PayStatus.None)
+ internal val payStatus: LiveData<PayStatus> = mPayStatus
+
+ private val mDetailsShown = MutableLiveData<Boolean>()
+ internal val detailsShown: LiveData<Boolean> = mDetailsShown
+
+ private var currentPayRequestId = 0
+
+ @UiThread
+ fun preparePay(url: String) {
+ mPayStatus.value = PayStatus.Loading
+ mDetailsShown.value = false
+
+ val args = JSONObject(mapOf("url" to url))
+
+ currentPayRequestId += 1
+ val payRequestId = currentPayRequestId
+
+ walletBackendApi.sendRequest("preparePay", args) { isError, result ->
+ when {
+ isError -> {
+ Log.v(TAG, "got preparePay error result")
+ mPayStatus.value = PayStatus.Error(result.toString())
+ }
+ payRequestId != this.currentPayRequestId -> {
+ Log.v(TAG, "preparePay result was for old request")
+ }
+ else -> {
+ val status = result.getString("status")
+ try {
+ mPayStatus.postValue(getPayStatusUpdate(status, result))
+ } catch (e: Exception) {
+ Log.e(TAG, "Error getting PayStatusUpdate", e)
+ mPayStatus.postValue(PayStatus.Error(e.message ?: "unknown error"))
+ }
+ }
+ }
+ }
+ }
+
+ private fun getPayStatusUpdate(status: String, json: JSONObject) = when (status) {
+ "payment-possible" -> PayStatus.Prepared(
+ contractTerms = getContractTerms(json),
+ proposalId = json.getString("proposalId"),
+ totalFees = Amount.fromJson(json.getJSONObject("totalFees"))
+ )
+ "paid" -> PayStatus.AlreadyPaid(getContractTerms(json))
+ "insufficient-balance" -> PayStatus.InsufficientBalance(getContractTerms(json))
+ "error" -> PayStatus.Error("got some error")
+ else -> PayStatus.Error("unknown status")
+ }
+
+ private fun getContractTerms(json: JSONObject): ContractTerms {
+ val terms: ContractTerms = mapper.readValue(json.getString("contractTermsRaw"))
+ // validate product images
+ terms.products.forEach { product ->
+ product.image?.let { image ->
+ if (REGEX_PRODUCT_IMAGE.matchEntire(image) == null) {
+ throw MalformedURLException("Invalid image data URL for ${product.description}")
+ }
+ }
+ }
+ return terms
+ }
+
+ @UiThread
+ fun toggleDetailsShown() {
+ val oldValue = mDetailsShown.value ?: false
+ mDetailsShown.value = !oldValue
+ }
+
+ fun confirmPay(proposalId: String) {
+ val args = JSONObject(mapOf("proposalId" to proposalId))
+
+ walletBackendApi.sendRequest("confirmPay", args) { _, _ ->
+ mPayStatus.postValue(PayStatus.Success)
+ }
+ }
+
+ @UiThread
+ fun abortPay() {
+ val ps = payStatus.value
+ if (ps is PayStatus.Prepared) {
+ abortProposal(ps.proposalId)
+ }
+ resetPayStatus()
+ }
+
+ internal fun abortProposal(proposalId: String) {
+ val args = JSONObject(mapOf("proposalId" to proposalId))
+
+ Log.i(TAG, "aborting proposal")
+
+ walletBackendApi.sendRequest("abortProposal", args) { isError, _ ->
+ if (isError) {
+ Log.e(TAG, "received error response to abortProposal")
+ return@sendRequest
+ }
+ mPayStatus.postValue(PayStatus.None)
+ }
+ }
+
+ @UiThread
+ fun resetPayStatus() {
+ mPayStatus.value = PayStatus.None
+ }
+
+}
+
+sealed class PayStatus {
+ object None : PayStatus()
+ object Loading : PayStatus()
+ data class Prepared(
+ val contractTerms: ContractTerms,
+ val proposalId: String,
+ val totalFees: Amount
+ ) : PayStatus()
+
+ data class InsufficientBalance(val contractTerms: ContractTerms) : PayStatus()
+ data class AlreadyPaid(val contractTerms: ContractTerms) : PayStatus()
+ data class Error(val error: String) : PayStatus()
+ object Success : PayStatus()
+}
diff --git a/wallet/src/main/java/net/taler/wallet/payment/PaymentSuccessfulFragment.kt b/wallet/src/main/java/net/taler/wallet/payment/PaymentSuccessfulFragment.kt
new file mode 100644
index 0000000..2084c45
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/payment/PaymentSuccessfulFragment.kt
@@ -0,0 +1,49 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.payment
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.navigation.fragment.findNavController
+import kotlinx.android.synthetic.main.fragment_payment_successful.*
+import net.taler.wallet.R
+import net.taler.wallet.fadeIn
+
+/**
+ * Fragment that shows the success message for a payment.
+ */
+class PaymentSuccessfulFragment : Fragment() {
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_payment_successful, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ successImageView.fadeIn()
+ successTextView.fadeIn()
+ backButton.setOnClickListener {
+ findNavController().navigateUp()
+ }
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/payment/ProductAdapter.kt b/wallet/src/main/java/net/taler/wallet/payment/ProductAdapter.kt
new file mode 100644
index 0000000..4b1b062
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/payment/ProductAdapter.kt
@@ -0,0 +1,92 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.payment
+
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory.decodeByteArray
+import android.util.Base64
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
+import net.taler.wallet.R
+import net.taler.wallet.payment.ProductAdapter.ProductViewHolder
+
+internal interface ProductImageClickListener {
+ fun onImageClick(image: Bitmap)
+}
+
+internal class ProductAdapter(private val listener: ProductImageClickListener) :
+ RecyclerView.Adapter<ProductViewHolder>() {
+
+ private val items = ArrayList<ContractProduct>()
+
+ override fun getItemCount() = items.size
+
+ override fun getItemViewType(position: Int): Int {
+ return if (itemCount == 1) 1 else 0
+ }
+
+ override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ProductViewHolder {
+ val res =
+ if (viewType == 1) R.layout.list_item_product_single else R.layout.list_item_product
+ val view = LayoutInflater.from(parent.context).inflate(res, parent, false)
+ return ProductViewHolder(view)
+ }
+
+ override fun onBindViewHolder(holder: ProductViewHolder, position: Int) {
+ holder.bind(items[position])
+ }
+
+ fun setItems(items: List<ContractProduct>) {
+ this.items.clear()
+ this.items.addAll(items)
+ notifyDataSetChanged()
+ }
+
+ internal inner class ProductViewHolder(v: View) : ViewHolder(v) {
+ private val quantity: TextView = v.findViewById(R.id.quantity)
+ private val image: ImageView = v.findViewById(R.id.image)
+ private val name: TextView = v.findViewById(R.id.name)
+ private val price: TextView = v.findViewById(R.id.price)
+
+ fun bind(product: ContractProduct) {
+ quantity.text = product.quantity.toString()
+ if (product.image == null) {
+ image.visibility = GONE
+ } else {
+ image.visibility = VISIBLE
+ // product.image was validated before, so non-null below
+ val match = REGEX_PRODUCT_IMAGE.matchEntire(product.image)!!
+ val decodedString = Base64.decode(match.groups[2]!!.value, Base64.DEFAULT)
+ val bitmap = decodeByteArray(decodedString, 0, decodedString.size)
+ image.setImageBitmap(bitmap)
+ if (itemCount > 1) image.setOnClickListener {
+ listener.onImageClick(bitmap)
+ }
+ }
+ name.text = product.description
+ price.text = product.totalPrice.toString()
+ }
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/payment/ProductImageFragment.kt b/wallet/src/main/java/net/taler/wallet/payment/ProductImageFragment.kt
new file mode 100644
index 0000000..02414a6
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/payment/ProductImageFragment.kt
@@ -0,0 +1,52 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.payment
+
+import android.graphics.Bitmap
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.DialogFragment
+import kotlinx.android.synthetic.main.fragment_product_image.*
+import net.taler.wallet.R
+
+class ProductImageFragment private constructor() : DialogFragment() {
+
+ companion object {
+ private const val IMAGE = "image"
+
+ fun new(image: Bitmap) = ProductImageFragment().apply {
+ arguments = Bundle().apply {
+ putParcelable(IMAGE, image)
+ }
+ }
+ }
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_product_image, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ val bitmap = arguments!!.getParcelable<Bitmap>(IMAGE)
+ productImageView.setImageBitmap(bitmap)
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/payment/PromptPaymentFragment.kt b/wallet/src/main/java/net/taler/wallet/payment/PromptPaymentFragment.kt
new file mode 100644
index 0000000..44dcf26
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/payment/PromptPaymentFragment.kt
@@ -0,0 +1,168 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.payment
+
+import android.annotation.SuppressLint
+import android.graphics.Bitmap
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.lifecycle.observe
+import androidx.navigation.fragment.findNavController
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.transition.TransitionManager.beginDelayedTransition
+import kotlinx.android.synthetic.main.payment_bottom_bar.*
+import kotlinx.android.synthetic.main.payment_details.*
+import net.taler.wallet.Amount
+import net.taler.wallet.R
+import net.taler.wallet.WalletViewModel
+import net.taler.wallet.fadeIn
+import net.taler.wallet.fadeOut
+
+/**
+ * Show a payment and ask the user to accept/decline.
+ */
+class PromptPaymentFragment : Fragment(), ProductImageClickListener {
+
+ private val model: WalletViewModel by activityViewModels()
+ private val paymentManager by lazy { model.paymentManager }
+ private val adapter = ProductAdapter(this)
+
+ override fun onCreateView(
+ inflater: LayoutInflater, container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_prompt_payment, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ paymentManager.payStatus.observe(viewLifecycleOwner, this::onPaymentStatusChanged)
+ paymentManager.detailsShown.observe(viewLifecycleOwner, Observer { shown ->
+ beginDelayedTransition(view as ViewGroup)
+ val res = if (shown) R.string.payment_hide_details else R.string.payment_show_details
+ detailsButton.setText(res)
+ productsList.visibility = if (shown) VISIBLE else GONE
+ })
+
+ detailsButton.setOnClickListener {
+ paymentManager.toggleDetailsShown()
+ }
+ productsList.apply {
+ adapter = this@PromptPaymentFragment.adapter
+ layoutManager = LinearLayoutManager(requireContext())
+ }
+
+ abortButton.setOnClickListener {
+ paymentManager.abortPay()
+ findNavController().navigateUp()
+ }
+ }
+
+ override fun onDestroy() {
+ super.onDestroy()
+ if (!requireActivity().isChangingConfigurations) {
+ paymentManager.abortPay()
+ }
+ }
+
+ private fun showLoading(show: Boolean) {
+ model.showProgressBar.value = show
+ if (show) {
+ progressBar.fadeIn()
+ } else {
+ progressBar.fadeOut()
+ }
+ }
+
+ private fun onPaymentStatusChanged(payStatus: PayStatus) {
+ when (payStatus) {
+ is PayStatus.Prepared -> {
+ showLoading(false)
+ showOrder(payStatus.contractTerms, payStatus.totalFees)
+ confirmButton.isEnabled = true
+ confirmButton.setOnClickListener {
+ model.showProgressBar.value = true
+ paymentManager.confirmPay(payStatus.proposalId)
+ confirmButton.fadeOut()
+ confirmProgressBar.fadeIn()
+ }
+ }
+ is PayStatus.InsufficientBalance -> {
+ showLoading(false)
+ showOrder(payStatus.contractTerms, null)
+ errorView.setText(R.string.payment_balance_insufficient)
+ errorView.fadeIn()
+ }
+ is PayStatus.Success -> {
+ showLoading(false)
+ paymentManager.resetPayStatus()
+ findNavController().navigate(R.id.action_promptPayment_to_paymentSuccessful)
+ }
+ is PayStatus.AlreadyPaid -> {
+ showLoading(false)
+ paymentManager.resetPayStatus()
+ findNavController().navigate(R.id.action_promptPayment_to_alreadyPaid)
+ }
+ is PayStatus.Error -> {
+ showLoading(false)
+ errorView.text = getString(R.string.payment_error, payStatus.error)
+ errorView.fadeIn()
+ }
+ is PayStatus.None -> {
+ // No payment active.
+ showLoading(false)
+ }
+ is PayStatus.Loading -> {
+ // Wait until loaded ...
+ showLoading(true)
+ }
+ }
+ }
+
+ private fun showOrder(contractTerms: ContractTerms, totalFees: Amount?) {
+ orderView.text = contractTerms.summary
+ adapter.setItems(contractTerms.products)
+ if (contractTerms.products.size == 1) paymentManager.toggleDetailsShown()
+ val amount = contractTerms.amount
+ @SuppressLint("SetTextI18n")
+ totalView.text = "${amount.amount} ${amount.currency}"
+ if (totalFees != null && !totalFees.isZero()) {
+ val fee = "${totalFees.amount} ${totalFees.currency}"
+ feeView.text = getString(R.string.payment_fee, fee)
+ feeView.fadeIn()
+ } else {
+ feeView.visibility = GONE
+ }
+ orderLabelView.fadeIn()
+ orderView.fadeIn()
+ if (contractTerms.products.size > 1) detailsButton.fadeIn()
+ totalLabelView.fadeIn()
+ totalView.fadeIn()
+ }
+
+ override fun onImageClick(image: Bitmap) {
+ val f = ProductImageFragment.new(image)
+ f.show(parentFragmentManager, "image")
+ }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/pending/PendingOperationsFragment.kt b/wallet/src/main/java/net/taler/wallet/pending/PendingOperationsFragment.kt
new file mode 100644
index 0000000..946e5ba
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/pending/PendingOperationsFragment.kt
@@ -0,0 +1,180 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.pending
+
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.Menu
+import android.view.MenuInflater
+import android.view.MenuItem
+import android.view.View
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import android.widget.LinearLayout
+import android.widget.TextView
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.snackbar.Snackbar.LENGTH_SHORT
+import kotlinx.android.synthetic.main.fragment_pending_operations.*
+import net.taler.wallet.R
+import net.taler.wallet.TAG
+import net.taler.wallet.WalletViewModel
+import org.json.JSONObject
+
+interface PendingOperationClickListener {
+ fun onPendingOperationClick(type: String, detail: JSONObject)
+ fun onPendingOperationActionClick(type: String, detail: JSONObject)
+}
+
+class PendingOperationsFragment : Fragment(), PendingOperationClickListener {
+
+ private val model: WalletViewModel by activityViewModels()
+ private val pendingOperationsManager by lazy { model.pendingOperationsManager }
+
+ private val pendingAdapter = PendingOperationsAdapter(emptyList(), this)
+
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+ setHasOptionsMenu(true)
+ }
+
+ override fun onCreateView(
+ inflater: LayoutInflater,
+ container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_pending_operations, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ super.onViewCreated(view, savedInstanceState)
+
+ list_pending.apply {
+ val myLayoutManager = LinearLayoutManager(requireContext())
+ val myItemDecoration =
+ DividerItemDecoration(requireContext(), myLayoutManager.orientation)
+ layoutManager = myLayoutManager
+ adapter = pendingAdapter
+ addItemDecoration(myItemDecoration)
+ }
+
+ pendingOperationsManager.pendingOperations.observe(viewLifecycleOwner, Observer {
+ updatePending(it)
+ })
+ }
+
+ override fun onOptionsItemSelected(item: MenuItem): Boolean {
+ return when (item.itemId) {
+ R.id.retry_pending -> {
+ pendingOperationsManager.retryPendingNow()
+ true
+ }
+ else -> super.onOptionsItemSelected(item)
+ }
+ }
+
+ override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
+ inflater.inflate(R.menu.pending_operations, menu)
+ super.onCreateOptionsMenu(menu, inflater)
+ }
+
+ private fun updatePending(pendingOperations: List<PendingOperationInfo>) {
+ pendingAdapter.update(pendingOperations)
+ }
+
+ override fun onPendingOperationClick(type: String, detail: JSONObject) {
+ Snackbar.make(view!!, "No detail view for $type implemented yet.", LENGTH_SHORT).show()
+ }
+
+ override fun onPendingOperationActionClick(type: String, detail: JSONObject) {
+ when (type) {
+ "proposal-choice" -> {
+ Log.v(TAG, "got action click on proposal-choice")
+ val proposalId = detail.optString("proposalId", "")
+ if (proposalId == "") {
+ return
+ }
+ model.paymentManager.abortProposal(proposalId)
+ }
+ }
+ }
+
+}
+
+class PendingOperationsAdapter(
+ private var items: List<PendingOperationInfo>,
+ private val listener: PendingOperationClickListener
+) :
+ RecyclerView.Adapter<PendingOperationsAdapter.MyViewHolder>() {
+
+ init {
+ setHasStableIds(false)
+ }
+
+ override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
+ val rowView =
+ LayoutInflater.from(parent.context).inflate(R.layout.pending_row, parent, false)
+ return MyViewHolder(rowView)
+ }
+
+ override fun getItemCount(): Int {
+ return items.size
+ }
+
+ override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
+ val p = items[position]
+ val pendingContainer = holder.rowView.findViewById<LinearLayout>(R.id.pending_container)
+ pendingContainer.setOnClickListener {
+ listener.onPendingOperationClick(p.type, p.detail)
+ }
+ when (p.type) {
+ "proposal-choice" -> {
+ val btn1 = holder.rowView.findViewById<TextView>(R.id.button_pending_action_1)
+ btn1.text = btn1.context.getString(R.string.pending_operations_refuse)
+ btn1.visibility = VISIBLE
+ btn1.setOnClickListener {
+ listener.onPendingOperationActionClick(p.type, p.detail)
+ }
+ }
+ else -> {
+ val btn1 = holder.rowView.findViewById<TextView>(R.id.button_pending_action_1)
+ btn1.text = btn1.context.getString(R.string.pending_operations_no_action)
+ btn1.visibility = GONE
+ btn1.setOnClickListener {}
+ }
+ }
+ val textView = holder.rowView.findViewById<TextView>(R.id.pending_text)
+ val subTextView = holder.rowView.findViewById<TextView>(R.id.pending_subtext)
+ subTextView.text = p.detail.toString(1)
+ textView.text = p.type
+ }
+
+ fun update(items: List<PendingOperationInfo>) {
+ this.items = items
+ this.notifyDataSetChanged()
+ }
+
+ class MyViewHolder(val rowView: View) : RecyclerView.ViewHolder(rowView)
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/pending/PendingOperationsManager.kt b/wallet/src/main/java/net/taler/wallet/pending/PendingOperationsManager.kt
new file mode 100644
index 0000000..2125dbc
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/pending/PendingOperationsManager.kt
@@ -0,0 +1,64 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.pending
+