diff options
Diffstat (limited to 'wallet/src/main/java/net/taler/wallet/payment')
3 files changed, 389 insertions, 14 deletions
diff --git a/wallet/src/main/java/net/taler/wallet/payment/DepositFragment.kt b/wallet/src/main/java/net/taler/wallet/payment/DepositFragment.kt new file mode 100644 index 0000000..add9467 --- /dev/null +++ b/wallet/src/main/java/net/taler/wallet/payment/DepositFragment.kt @@ -0,0 +1,262 @@ +/* + * This file is part of GNU Taler + * (C) 2022 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.compose.animation.AnimatedVisibility +import androidx.compose.foundation.layout.Column +import androidx.compose.foundation.layout.fillMaxWidth +import androidx.compose.foundation.layout.padding +import androidx.compose.foundation.rememberScrollState +import androidx.compose.foundation.verticalScroll +import androidx.compose.material.Button +import androidx.compose.material.OutlinedTextField +import androidx.compose.material.Surface +import androidx.compose.material.Text +import androidx.compose.runtime.Composable +import androidx.compose.runtime.LaunchedEffect +import androidx.compose.runtime.getValue +import androidx.compose.runtime.mutableStateOf +import androidx.compose.runtime.remember +import androidx.compose.runtime.saveable.rememberSaveable +import androidx.compose.runtime.setValue +import androidx.compose.ui.Alignment +import androidx.compose.ui.Modifier +import androidx.compose.ui.focus.FocusRequester +import androidx.compose.ui.focus.focusRequester +import androidx.compose.ui.graphics.Color +import androidx.compose.ui.platform.ComposeView +import androidx.compose.ui.platform.LocalFocusManager +import androidx.compose.ui.res.colorResource +import androidx.compose.ui.res.stringResource +import androidx.compose.ui.tooling.preview.Preview +import androidx.compose.ui.unit.dp +import androidx.compose.ui.unit.sp +import androidx.fragment.app.Fragment +import androidx.fragment.app.activityViewModels +import com.google.android.material.composethemeadapter.MdcTheme +import net.taler.common.Amount +import net.taler.wallet.MainViewModel +import net.taler.wallet.R +import net.taler.wallet.compose.collectAsStateLifecycleAware + +class DepositFragment : Fragment() { + private val model: MainViewModel by activityViewModels() + private val paymentManager get() = model.paymentManager + + override fun onCreateView( + inflater: LayoutInflater, + container: ViewGroup?, + savedInstanceState: Bundle?, + ): View { + val amount = arguments?.getString("amount")?.let { + Amount.fromJSONString(it) + } ?: error("no amount passed") + + return ComposeView(requireContext()).apply { + setContent { + MdcTheme { + Surface { + val state = paymentManager.depositState.collectAsStateLifecycleAware() + MakeDepositComposable( + state = state.value, + amount = amount, + onMakeDeposit = this@DepositFragment::onDepositButtonClicked, + ) + } + } + } + } + } + + override fun onStart() { + super.onStart() + activity?.setTitle(R.string.send_deposit_title) + } + + override fun onDestroy() { + super.onDestroy() + if (!requireActivity().isChangingConfigurations) { + paymentManager.resetDepositState() + } + } + + private fun onDepositButtonClicked( + amount: Amount, + receiverName: String, + iban: String, + bic: String, + ) { + paymentManager.onDepositButtonClicked(amount, receiverName, iban, bic) + } +} + +@Composable +private fun MakeDepositComposable( + state: DepositState, + amount: Amount, + onMakeDeposit: (Amount, String, String, String) -> Unit, +) { + val scrollState = rememberScrollState() + Column( + modifier = Modifier + .fillMaxWidth() + .verticalScroll(scrollState), + horizontalAlignment = Alignment.CenterHorizontally, + ) { + var name by rememberSaveable { mutableStateOf("") } + var iban by rememberSaveable { mutableStateOf("") } + var bic by rememberSaveable { mutableStateOf("") } + val focusRequester = remember { FocusRequester() } + OutlinedTextField( + modifier = Modifier + .padding(16.dp) + .focusRequester(focusRequester), + value = name, + enabled = !state.showFees, + onValueChange = { input -> + name = input + }, + isError = name.isBlank(), + label = { + Text( + stringResource(R.string.send_deposit_name), + color = if (name.isBlank()) { + colorResource(R.color.red) + } else Color.Unspecified, + ) + } + ) + LaunchedEffect(Unit) { + focusRequester.requestFocus() + } + OutlinedTextField( + modifier = Modifier + .padding(16.dp), + value = iban, + enabled = !state.showFees, + onValueChange = { input -> + iban = input + }, + isError = iban.isBlank(), + label = { + Text( + text = stringResource(R.string.send_deposit_iban), + color = if (iban.isBlank()) { + colorResource(R.color.red) + } else Color.Unspecified, + ) + } + ) + OutlinedTextField( + modifier = Modifier + .padding(16.dp), + value = bic, + enabled = !state.showFees, + onValueChange = { input -> + bic = input + }, + label = { + Text( + text = stringResource(R.string.send_deposit_bic), + ) + } + ) + Text( + modifier = Modifier.padding(horizontal = 16.dp), + text = stringResource(id = R.string.amount_chosen), + ) + Text( + modifier = Modifier.padding(16.dp), + fontSize = 24.sp, + color = colorResource(R.color.green), + text = amount.toString(), + ) + AnimatedVisibility(visible = state.showFees) { + Column( + modifier = Modifier.fillMaxWidth(), + horizontalAlignment = Alignment.CenterHorizontally, + ) { + val effectiveAmount = state.effectiveDepositAmount + val fee = amount - (effectiveAmount ?: Amount.zero(amount.currency)) + Text( + modifier = Modifier.padding(horizontal = 16.dp), + text = stringResource(id = R.string.withdraw_fees), + ) + Text( + modifier = Modifier.padding(16.dp), + fontSize = 24.sp, + color = colorResource(if (fee.isZero()) R.color.green else R.color.red), + text = if (fee.isZero()) { + fee.toString() + } else { + stringResource(R.string.amount_negative, fee.toString()) + }, + ) + Text( + modifier = Modifier.padding(horizontal = 16.dp), + text = stringResource(id = R.string.send_deposit_amount_effective), + ) + Text( + modifier = Modifier.padding(16.dp), + fontSize = 24.sp, + color = colorResource(R.color.green), + text = effectiveAmount.toString(), + ) + } + } + AnimatedVisibility(visible = state is DepositState.Error) { + Text( + modifier = Modifier.padding(16.dp), + fontSize = 18.sp, + color = colorResource(R.color.red), + text = (state as? DepositState.Error)?.msg ?: "", + ) + } + val focusManager = LocalFocusManager.current + Button( + modifier = Modifier.padding(16.dp), + enabled = iban.isNotBlank(), + onClick = { + focusManager.clearFocus() + onMakeDeposit(amount, name, iban, bic) + }, + ) { + Text(text = stringResource( + if (state.showFees) R.string.send_deposit_create_button + else R.string.send_deposit_check_fees_button + )) + } + } +} + +@Preview +@Composable +fun PreviewMakeDepositComposable() { + Surface { + val state = DepositState.FeesChecked( + effectiveDepositAmount = Amount.fromDouble("TESTKUDOS", 42.00), + ) + MakeDepositComposable( + state = state, + amount = Amount.fromDouble("TESTKUDOS", 42.23)) { _, _, _, _ -> + } + } +} diff --git a/wallet/src/main/java/net/taler/wallet/payment/DepositState.kt b/wallet/src/main/java/net/taler/wallet/payment/DepositState.kt new file mode 100644 index 0000000..8598911 --- /dev/null +++ b/wallet/src/main/java/net/taler/wallet/payment/DepositState.kt @@ -0,0 +1,44 @@ +/* + * This file is part of GNU Taler + * (C) 2022 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 net.taler.common.Amount + +sealed class DepositState { + + open val showFees: Boolean = false + open val effectiveDepositAmount: Amount? = null + + object Start : DepositState() + object CheckingFees : DepositState() + class FeesChecked( + override val effectiveDepositAmount: Amount, + ) : DepositState() { + override val showFees = true + } + + class MakingDeposit( + override val effectiveDepositAmount: Amount, + ) : DepositState() { + override val showFees = true + } + + object Success : DepositState() + + class Error(val msg: String) : DepositState() + +} diff --git a/wallet/src/main/java/net/taler/wallet/payment/PaymentManager.kt b/wallet/src/main/java/net/taler/wallet/payment/PaymentManager.kt index dfa14c2..74740ca 100644 --- a/wallet/src/main/java/net/taler/wallet/payment/PaymentManager.kt +++ b/wallet/src/main/java/net/taler/wallet/payment/PaymentManager.kt @@ -21,11 +21,14 @@ import androidx.annotation.UiThread import androidx.lifecycle.LiveData import androidx.lifecycle.MutableLiveData import kotlinx.coroutines.CoroutineScope +import kotlinx.coroutines.flow.MutableStateFlow +import kotlinx.coroutines.flow.asStateFlow import kotlinx.coroutines.launch import kotlinx.serialization.Serializable import net.taler.common.Amount import net.taler.common.ContractTerms import net.taler.wallet.TAG +import net.taler.wallet.accounts.PaytoUriIban import net.taler.wallet.backend.TalerErrorInfo import net.taler.wallet.backend.WalletBackendApi import net.taler.wallet.payment.PayStatus.AlreadyPaid @@ -43,12 +46,12 @@ sealed class PayStatus { val contractTerms: ContractTerms, val proposalId: String, val amountRaw: Amount, - val amountEffective: Amount + val amountEffective: Amount, ) : PayStatus() data class InsufficientBalance( val contractTerms: ContractTerms, - val amountRaw: Amount + val amountRaw: Amount, ) : PayStatus() // TODO bring user to fulfilment URI @@ -65,6 +68,9 @@ class PaymentManager( private val mPayStatus = MutableLiveData<PayStatus>(PayStatus.None) internal val payStatus: LiveData<PayStatus> = mPayStatus + private val mDepositState = MutableStateFlow<DepositState>(DepositState.Start) + internal val depositState = mDepositState.asStateFlow() + @UiThread fun preparePay(url: String) = scope.launch { mPayStatus.value = PayStatus.Loading @@ -120,28 +126,91 @@ class PaymentManager( mPayStatus.value = PayStatus.None } + private fun handleError(operation: String, error: TalerErrorInfo) { + Log.e(TAG, "got $operation error result $error") + mPayStatus.value = PayStatus.Error(error.userFacingMsg) + } + + /* Deposits */ + @UiThread - fun makeDeposit(url: String, amount: Amount) = scope.launch { - // TODO - api.request("createDepositGroup", CreateDepositGroupResponse.serializer()) { - put("depositPaytoUri", url) - put("amount", amount.toJSONString()) - }.onError { - Log.e(TAG, "Error createDepositGroup $it") - }.onSuccess { - Log.e(TAG, "createDepositGroup $it") + fun onDepositButtonClicked(amount: Amount, receiverName: String, iban: String, bic: String) { + val paytoUri: String = PaytoUriIban( + iban = iban, + bic = bic, + targetPath = "", + params = mapOf("receiver-name" to receiverName), + ).paytoUri + + if (depositState.value.showFees) { + val effectiveDepositAmount = depositState.value.effectiveDepositAmount + ?: Amount.zero(amount.currency) + makeDeposit(paytoUri, amount, effectiveDepositAmount) + } else { + prepareDeposit(paytoUri, amount) } } - private fun handleError(operation: String, error: TalerErrorInfo) { - Log.e(TAG, "got $operation error result $error") - mPayStatus.value = PayStatus.Error(error.userFacingMsg) + private fun prepareDeposit(paytoUri: String, amount: Amount) { + mDepositState.value = DepositState.CheckingFees + scope.launch { + api.request("prepareDeposit", PrepareDepositResponse.serializer()) { + put("depositPaytoUri", paytoUri) + put("amount", amount.toJSONString()) + }.onError { + Log.e(TAG, "Error prepareDeposit $it") + mDepositState.value = DepositState.Error(it.userFacingMsg) + }.onSuccess { + mDepositState.value = DepositState.FeesChecked( + effectiveDepositAmount = it.effectiveDepositAmount.amount, + ) + } + } } + private fun makeDeposit( + paytoUri: String, + amount: Amount, + effectiveDepositAmount: Amount, + ) { + mDepositState.value = DepositState.MakingDeposit(effectiveDepositAmount) + scope.launch { + api.request("createDepositGroup", CreateDepositGroupResponse.serializer()) { + put("depositPaytoUri", paytoUri) + put("amount", amount.toJSONString()) + }.onError { + Log.e(TAG, "Error createDepositGroup $it") + mDepositState.value = DepositState.Error(it.userFacingMsg) + }.onSuccess { + mDepositState.value = DepositState.Success + } + } + } + + @UiThread + fun resetDepositState() { + mDepositState.value = DepositState.Start + } } @Serializable +data class PrepareDepositResponse( + val totalDepositCost: AmountJson, + val effectiveDepositAmount: AmountJson, +) + +@Serializable data class CreateDepositGroupResponse( val depositGroupId: String, val transactionId: String, ) + +@Serializable +@Deprecated("no idea why this is now in the API") +data class AmountJson( + val currency: String, + val value: Long, + val fraction: Int, +) { + val amount = Amount(currency, value, fraction) +} |