diff options
Diffstat (limited to 'wallet/src/main/java/net/taler/wallet/deposit')
4 files changed, 678 insertions, 0 deletions
diff --git a/wallet/src/main/java/net/taler/wallet/deposit/DepositFragment.kt b/wallet/src/main/java/net/taler/wallet/deposit/DepositFragment.kt new file mode 100644 index 0000000..2793e56 --- /dev/null +++ b/wallet/src/main/java/net/taler/wallet/deposit/DepositFragment.kt @@ -0,0 +1,272 @@ +/* + * 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.deposit + +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 depositManager get() = model.depositManager + + override fun onCreateView( + inflater: LayoutInflater, + container: ViewGroup?, + savedInstanceState: Bundle?, + ): View { + val amount = arguments?.getString("amount")?.let { + Amount.fromJSONString(it) + } ?: error("no amount passed") + val receiverName = arguments?.getString("receiverName") + val iban = arguments?.getString("IBAN") + val bic = arguments?.getString("BIC") ?: "" + + if (receiverName != null && iban != null) { + onDepositButtonClicked(amount, receiverName, iban, bic) + } + return ComposeView(requireContext()).apply { + setContent { + MdcTheme { + Surface { + val state = depositManager.depositState.collectAsStateLifecycleAware() + MakeDepositComposable( + state = state.value, + amount = amount, + presetName = receiverName, + presetIban = iban, + onMakeDeposit = this@DepositFragment::onDepositButtonClicked, + ) + } + } + } + } + } + + override fun onStart() { + super.onStart() + activity?.setTitle(R.string.send_deposit_title) + } + + override fun onDestroy() { + super.onDestroy() + if (!requireActivity().isChangingConfigurations) { + depositManager.resetDepositState() + } + } + + private fun onDepositButtonClicked( + amount: Amount, + receiverName: String, + iban: String, + bic: String, + ) { + depositManager.onDepositButtonClicked(amount, receiverName, iban, bic) + } +} + +@Composable +private fun MakeDepositComposable( + state: DepositState, + amount: Amount, + presetName: String? = null, + presetIban: String? = null, + onMakeDeposit: (Amount, String, String, String) -> Unit, +) { + val scrollState = rememberScrollState() + Column( + modifier = Modifier + .fillMaxWidth() + .verticalScroll(scrollState), + horizontalAlignment = Alignment.CenterHorizontally, + ) { + var name by rememberSaveable { mutableStateOf(presetName ?: "") } + var iban by rememberSaveable { mutableStateOf(presetIban ?: "") } + 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/deposit/DepositManager.kt b/wallet/src/main/java/net/taler/wallet/deposit/DepositManager.kt new file mode 100644 index 0000000..a207691 --- /dev/null +++ b/wallet/src/main/java/net/taler/wallet/deposit/DepositManager.kt @@ -0,0 +1,117 @@ +/* + * 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.deposit + +import android.net.Uri +import android.util.Log +import androidx.annotation.UiThread +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.wallet.TAG +import net.taler.wallet.accounts.PaytoUriIban +import net.taler.wallet.backend.WalletBackendApi + +class DepositManager( + private val api: WalletBackendApi, + private val scope: CoroutineScope, +) { + + private val mDepositState = MutableStateFlow<DepositState>(DepositState.Start) + internal val depositState = mDepositState.asStateFlow() + + fun isSupportedPayToUri(uriString: String): Boolean { + if (!uriString.startsWith("payto://")) return false + val u = Uri.parse(uriString) + if (!u.authority.equals("iban", ignoreCase = true)) return false + return u.pathSegments.size >= 1 + } + + @UiThread + 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 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, + ) + } + } + } + + 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: Amount, + val effectiveDepositAmount: Amount, +) + +@Serializable +data class CreateDepositGroupResponse( + val depositGroupId: String, + val transactionId: String, +) diff --git a/wallet/src/main/java/net/taler/wallet/deposit/DepositState.kt b/wallet/src/main/java/net/taler/wallet/deposit/DepositState.kt new file mode 100644 index 0000000..1249155 --- /dev/null +++ b/wallet/src/main/java/net/taler/wallet/deposit/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.deposit + +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/deposit/PayToUriFragment.kt b/wallet/src/main/java/net/taler/wallet/deposit/PayToUriFragment.kt new file mode 100644 index 0000000..ac1fd59 --- /dev/null +++ b/wallet/src/main/java/net/taler/wallet/deposit/PayToUriFragment.kt @@ -0,0 +1,245 @@ +/* + * 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.deposit + +import android.net.Uri +import android.os.Bundle +import android.view.LayoutInflater +import android.view.View +import android.view.ViewGroup +import androidx.compose.foundation.clickable +import androidx.compose.foundation.layout.Arrangement +import androidx.compose.foundation.layout.Box +import androidx.compose.foundation.layout.Column +import androidx.compose.foundation.layout.fillMaxSize +import androidx.compose.foundation.layout.fillMaxWidth +import androidx.compose.foundation.layout.padding +import androidx.compose.foundation.layout.wrapContentSize +import androidx.compose.foundation.rememberScrollState +import androidx.compose.foundation.text.KeyboardOptions +import androidx.compose.foundation.verticalScroll +import androidx.compose.material.Button +import androidx.compose.material.DropdownMenu +import androidx.compose.material.DropdownMenuItem +import androidx.compose.material.LocalTextStyle +import androidx.compose.material.OutlinedTextField +import androidx.compose.material.Surface +import androidx.compose.material.Text +import androidx.compose.material.TextFieldDefaults +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.platform.ComposeView +import androidx.compose.ui.platform.LocalFocusManager +import androidx.compose.ui.res.colorResource +import androidx.compose.ui.res.stringResource +import androidx.compose.ui.text.input.KeyboardType +import androidx.compose.ui.tooling.preview.Preview +import androidx.compose.ui.unit.dp +import androidx.core.os.bundleOf +import androidx.fragment.app.Fragment +import androidx.fragment.app.activityViewModels +import androidx.navigation.fragment.findNavController +import com.google.android.material.composethemeadapter.MdcTheme +import net.taler.common.Amount +import net.taler.wallet.AmountResult +import net.taler.wallet.MainViewModel +import net.taler.wallet.R + +class PayToUriFragment : Fragment() { + private val model: MainViewModel by activityViewModels() + private val depositManager get() = model.depositManager + + override fun onCreateView( + inflater: LayoutInflater, + container: ViewGroup?, + savedInstanceState: Bundle?, + ): View { + val uri = arguments?.getString("uri") ?: error("no amount passed") + + val currencies = model.getCurrencies() + return ComposeView(requireContext()).apply { + setContent { + MdcTheme { + Surface { + if (currencies.isEmpty()) Text( + text = stringResource(id = R.string.payment_balance_insufficient), + color = colorResource(id = R.color.red), + ) else if (depositManager.isSupportedPayToUri(uri)) PayToComposable( + currencies = model.getCurrencies(), + getAmount = model::createAmount, + onAmountChosen = { amount -> + val u = Uri.parse(uri) + val bundle = bundleOf( + "amount" to amount.toJSONString(), + "receiverName" to u.getQueryParameters("receiver-name")[0], + "IBAN" to u.pathSegments.last(), + ) + findNavController().navigate( + R.id.action_nav_payto_uri_to_nav_deposit, bundle) + }, + ) else Text( + text = stringResource(id = R.string.uri_invalid), + color = colorResource(id = R.color.red), + ) + } + } + } + } + } + + override fun onStart() { + super.onStart() + activity?.setTitle(R.string.send_deposit_title) + } + +} + +@Composable +private fun PayToComposable( + currencies: List<String>, + getAmount: (String, String) -> AmountResult, + onAmountChosen: (Amount) -> Unit, +) { + val scrollState = rememberScrollState() + Column( + modifier = Modifier + .fillMaxWidth() + .padding(vertical = 16.dp) + .verticalScroll(scrollState), + horizontalAlignment = Alignment.CenterHorizontally, + verticalArrangement = Arrangement.spacedBy(16.dp), + ) { + var amountText by rememberSaveable { mutableStateOf("") } + var amountError by rememberSaveable { mutableStateOf("") } + var currency by rememberSaveable { mutableStateOf(currencies[0]) } + val focusRequester = remember { FocusRequester() } + OutlinedTextField( + modifier = Modifier + .focusRequester(focusRequester), + value = amountText, + onValueChange = { input -> + amountError = "" + amountText = input + }, + keyboardOptions = KeyboardOptions.Default.copy(keyboardType = KeyboardType.Decimal), + singleLine = true, + isError = amountError.isNotBlank(), + label = { + if (amountError.isBlank()) { + Text(stringResource(R.string.send_amount)) + } else { + Text(amountError, color = colorResource(R.color.red)) + } + } + ) + CurrencyDropdown( + currencies = currencies, + onCurrencyChanged = { c -> currency = c }, + ) + LaunchedEffect(Unit) { + focusRequester.requestFocus() + } + + val focusManager = LocalFocusManager.current + val errorStrInvalidAmount = stringResource(id = R.string.receive_amount_invalid) + val errorStrInsufficientBalance = stringResource(id = R.string.payment_balance_insufficient) + Button( + modifier = Modifier.padding(16.dp), + enabled = amountText.isNotBlank(), + onClick = { + when (val amountResult = getAmount(amountText, currency)) { + is AmountResult.Success -> { + focusManager.clearFocus() + onAmountChosen(amountResult.amount) + } + is AmountResult.InvalidAmount -> amountError = errorStrInvalidAmount + is AmountResult.InsufficientBalance -> amountError = errorStrInsufficientBalance + } + }, + ) { + Text(text = stringResource(R.string.send_deposit_check_fees_button)) + } + } +} + +@Composable +fun CurrencyDropdown( + currencies: List<String>, + onCurrencyChanged: (String) -> Unit, +) { + var selectedIndex by remember { mutableStateOf(0) } + var expanded by remember { mutableStateOf(false) } + Box( + modifier = Modifier + .fillMaxSize() + .wrapContentSize(Alignment.Center), + ) { + OutlinedTextField( + modifier = Modifier + .clickable(onClick = { expanded = true }), + value = currencies[selectedIndex], + onValueChange = { }, + readOnly = true, + enabled = false, + textStyle = LocalTextStyle.current.copy( // show text as if not disabled + color = TextFieldDefaults.outlinedTextFieldColors().textColor( + enabled = true, + ).value + ), + singleLine = true, + label = { + Text(stringResource(R.string.currency)) + } + ) + DropdownMenu( + expanded = expanded, + onDismissRequest = { expanded = false }, + modifier = Modifier, + ) { + currencies.forEachIndexed { index, s -> + DropdownMenuItem(onClick = { + selectedIndex = index + onCurrencyChanged(currencies[index]) + expanded = false + }) { + Text(text = s) + } + } + } + } +} + +@Preview +@Composable +fun PreviewPayToComposable() { + Surface { + PayToComposable( + currencies = listOf("KUDOS", "TESTKUDOS", "BTCBITCOIN"), + getAmount = { _, _ -> AmountResult.InvalidAmount }, + onAmountChosen = {}, + ) + } +} |