taler-android

SetDonauScreen.kt (7360B)

---

 /*
  * This file is part of GNU Taler
  * (C) 2026 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.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.text.KeyboardActions
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.Button
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.livedata.observeAsState
 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.focus.FocusDirection
 import androidx.compose.ui.platform.LocalFocusManager
 import androidx.compose.ui.platform.LocalSoftwareKeyboardController
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.FontFamily.Companion.Monospace
 import androidx.compose.ui.text.input.ImeAction
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import net.taler.wallet.BottomInsetsSpacer
 import net.taler.wallet.R
 import net.taler.wallet.backend.TalerErrorInfo
 import net.taler.wallet.compose.ErrorComposable
 import net.taler.wallet.compose.GlobalScaffold
 import net.taler.wallet.compose.LoadingScreen
 import net.taler.wallet.compose.TalerSurface
 import net.taler.wallet.compose.collectAsStateLifecycleAware
 import net.taler.wallet.donau.GetDonauStatus.Error
 import net.taler.wallet.donau.GetDonauStatus.Loading
 import net.taler.wallet.donau.GetDonauStatus.None
 import net.taler.wallet.donau.GetDonauStatus.Success
 import net.taler.wallet.main.MainViewModel
 
 @Composable
 fun SetDonauScreen(
     model: MainViewModel,
     donauBaseUrl: String?,
     onShowMessage: (String) -> Unit,
     onShowError: (TalerErrorInfo) -> Unit,
     onNavigateBack: () -> Unit,
 ) {
     val donauManager = model.donauManager
     val donauStatus by donauManager.donauStatus.collectAsStateLifecycleAware()
     val devMode by model.devMode.observeAsState(false)
 
     LaunchedEffect(Unit) {
         donauManager.getDonau()
     }
 
     val readyMessage = stringResource(id = R.string.donau_ready)
 
     TalerSurface {
         GlobalScaffold(
             model = model,
             modifier = Modifier.fillMaxSize(),
             onNavigateBack = onNavigateBack,
             title = { Text(stringResource(R.string.donau_title)) },
         ) { paddingValues ->
             when (val status = donauStatus) {
                 Loading, None -> LoadingScreen(Modifier.padding(paddingValues))
                 is Success -> SetDonauComposable(
                     modifier = Modifier.padding(paddingValues),
                     donauInfo = status.donauInfo,
                     initialUrl = donauBaseUrl,
                     onSetDonauInfo = { info ->
                         donauManager.setDonau(
                             info,
                             {
                                 onShowMessage(readyMessage)
                                 onNavigateBack()
                             },
                             { error -> onShowError(error) }
                         )
                     },
                 )
 
                 is Error -> ErrorComposable(
                     error = status.error,
                     modifier = Modifier
                         .fillMaxSize()
                         .padding(paddingValues)
                         .verticalScroll(rememberScrollState()),
                     devMode = devMode,
                 )
             }
         }
     }
 }
 
 @Composable
 fun SetDonauComposable(
     donauInfo: DonauInfo?,
     onSetDonauInfo: (info: DonauInfo) -> Unit,
     modifier: Modifier = Modifier,
     initialUrl: String? = null,
 ) {
     val focusManager = LocalFocusManager.current
     val keyboardController = LocalSoftwareKeyboardController.current
     var donauBaseUrl by remember { mutableStateOf(initialUrl ?: donauInfo?.donauBaseUrl ?: "") }
     var taxPayerId by remember { mutableStateOf(donauInfo?.taxPayerId ?: "") }
 
     Column(modifier.fillMaxSize()) {
         OutlinedTextField(
             modifier = Modifier.padding(
                 bottom = 16.dp,
                 start = 16.dp,
                 end = 16.dp,
             ).fillMaxWidth(),
             value = donauBaseUrl,
             onValueChange = {
                 donauBaseUrl = it
             },
             singleLine = true,
             isError = donauBaseUrl.isBlank(),
             label = { Text(stringResource(R.string.donau_url)) },
             keyboardOptions = KeyboardOptions(imeAction = ImeAction.Next),
             keyboardActions = KeyboardActions(onNext = { focusManager.moveFocus(FocusDirection.Next) }),
         )
 
         OutlinedTextField(
             modifier = Modifier.padding(
                 bottom = 16.dp,
                 start = 16.dp,
                 end = 16.dp,
             ).fillMaxWidth(),
             value = taxPayerId,
             onValueChange = {
                 taxPayerId = it
             },
             singleLine = true,
             textStyle = TextStyle(fontFamily = Monospace),
             isError = taxPayerId.isBlank(),
             label = { Text(stringResource(R.string.donau_id)) },
             keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),
             keyboardActions = KeyboardActions(onNext = { focusManager.moveFocus(FocusDirection.Exit) }),
         )
 
         Button(
             modifier = Modifier
                 .padding(horizontal = 16.dp)
                 .align(Alignment.End),
             onClick = {
                 focusManager.clearFocus()
                 keyboardController?.hide()
                 onSetDonauInfo(DonauInfo(
                     donauBaseUrl = donauBaseUrl,
                     taxPayerId = taxPayerId,
                 ))
             },
             enabled = donauBaseUrl.isNotBlank() &&
                     taxPayerId.isNotBlank()
         ) {
             Text(stringResource(R.string.save))
         }
 
         BottomInsetsSpacer()
     }
 }
 
 @Preview
 @Composable
 fun SetDonauComposablePreview() {
     TalerSurface {
         SetDonauComposable(
             donauInfo = null,
             initialUrl = "https://donau.test.taler.net/",
             onSetDonauInfo = {},
         )
     }
 }