taler-android

DonauComposables.kt (6200B)

---

 /*
  * This file is part of GNU Taler
  * (C) 2025 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.donau
 
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.Button
 import androidx.compose.material3.RadioButton
 import androidx.compose.material3.Switch
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import net.taler.wallet.R
 import net.taler.wallet.cleanExchange
 import net.taler.wallet.compose.TalerSurface
 import net.taler.wallet.compose.WarningLabel
 import net.taler.wallet.payment.DonauStatus
 
 @Composable
 fun DonauToggle(
     donauStatus: DonauStatus,
     useDonau: Boolean = false,
     onToggleDonau: (Boolean) -> Unit,
 ) {
     if (donauStatus !is DonauStatus.Unavailable) {
         Column {
             Row(
                 Modifier
                     .fillMaxWidth()
                     .padding(9.dp),
             ) {
                 Text(
                     modifier = Modifier.weight(1f),
                     text = stringResource(R.string.donau_toggle_label),
                 )
 
                 Switch(
                     checked = useDonau,
                     onCheckedChange = onToggleDonau,
                 )
             }
 
             if (useDonau) when (donauStatus) {
                 is DonauStatus.Mismatch -> {
                     WarningLabel(stringResource(
                         R.string.donau_warning_mismatch,
                         cleanExchange(donauStatus.donauInfo.donauBaseUrl)))
                 }
 
                 is DonauStatus.Unset -> {
                     WarningLabel(stringResource(R.string.donau_warning_unset))
                 }
 
                 // no need to show anything
                 else -> {}
             }
         }
     }
 }
 
 @Composable
 fun DonauSelector(
     donauStatus: DonauStatus,
     showDialog: Boolean,
     onDismiss: () -> Unit,
     onSetup: (donauBaseUrl: String) -> Unit,
 ) {
     var selectedDonauIndex by remember { mutableIntStateOf(0) }
 
     val donauUrls = when(donauStatus) {
         is DonauStatus.Mismatch -> donauStatus.donauUrls
         is DonauStatus.Unset -> donauStatus.donauUrls
         else -> return
     }
 
     if (showDialog) AlertDialog(
         title = { Text(stringResource(R.string.donau_selector_title)) },
         text = {
             LazyColumn(modifier = Modifier.fillMaxWidth()) {
                 itemsIndexed(donauUrls) { i, url ->
                     DonauSelectorItem(
                         donauBaseUrl = url,
                         selected = i == selectedDonauIndex,
                         onSelected = { selectedDonauIndex = i },
                     )
                 }
             }
         },
         confirmButton = {
             Button(onClick = {
                 onSetup(donauUrls[selectedDonauIndex])
                 onDismiss()
             }) {
                 Text(stringResource(R.string.donau_selector_confirm))
             }
         },
         dismissButton = {
             TextButton (onClick = { onDismiss() }) {
                 Text(stringResource(R.string.cancel))
             }
         },
         onDismissRequest = {
             onDismiss()
         },
     )
 }
 
 @Composable
 fun DonauSelectorItem(
     donauBaseUrl: String,
     selected: Boolean,
     onSelected: () -> Unit,
 ) {
     Row(Modifier
         .padding(bottom = 5.dp)
         .fillMaxWidth()
         .clickable { onSelected() },
         verticalAlignment = Alignment.CenterVertically) {
         RadioButton(
             selected = selected,
             onClick = onSelected,
         )
 
         Text(
             modifier = Modifier.weight(1f),
             text = cleanExchange(donauBaseUrl)
         )
     }
 }
 
 @Preview
 @Composable
 fun DonauSelectorPreview() {
     TalerSurface {
         val donauInfo = DonauInfo(donauBaseUrl = "https://donau.test.taler.net/", taxPayerId = "1234")
         val donauUrls = listOf(
             "https://donau.head.taler.net/",
             "https://donau.test.taler.net/",
             "https://donau.demo.taler.net/",
         )
 
         var donauStatus: DonauStatus by remember { mutableStateOf(DonauStatus.Unset(donauUrls)) }
 
         Column(Modifier.fillMaxSize()) {
             Button(onClick = { donauStatus = DonauStatus.Unset(donauUrls) }) {
                 Text("DonauStatus.Unset")
             }
 
             Button(onClick = { donauStatus = DonauStatus.Mismatch(donauInfo, donauUrls) }) {
                 Text("DonauStatus.Mismatch")
             }
         }
 
         DonauSelector(donauStatus,
             showDialog = donauStatus !is DonauStatus.Unavailable,
             onDismiss = { donauStatus = DonauStatus.Unavailable },
             onSetup = { donauStatus = DonauStatus.Unavailable }
         )
     }
 }