taler-android

DonauStatementComposable.kt (5388B)

---

 /*
  * 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.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.ScrollableTabRow
 import androidx.compose.material3.Tab
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment.Companion.CenterHorizontally
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import net.taler.common.Amount
 import net.taler.wallet.BottomInsetsSpacer
 import net.taler.wallet.R
 import net.taler.wallet.compose.QrCodeParams
 import net.taler.wallet.compose.QrCodeUriComposable
 import net.taler.wallet.compose.TalerSurface
 import net.taler.wallet.transactions.AmountType
 import net.taler.wallet.transactions.TransactionAmountComposable
 import net.taler.wallet.transactions.TransactionInfoComposable
 
 @Composable
 fun DonauStatementComposable(
     statements: List<DonauStatement>,
     selectedIndex: Int,
     modifier: Modifier = Modifier,
     onSelectIndex: (index: Int) -> Unit,
 ) {
     val statement = remember(selectedIndex) {
         statements[selectedIndex]
     }
 
     // TODO: create common instruction + QR composable
     Column(
         modifier = modifier
             .fillMaxSize()
             .verticalScroll(rememberScrollState()),
         horizontalAlignment = CenterHorizontally,
     ) {
         // only show tab row if more than one year
         if (statements.size > 1) ScrollableTabRow(
             selectedTabIndex = selectedIndex,
             edgePadding = 8.dp,
         ) {
             statements.forEachIndexed { i, statement ->
                 Tab(
                     selected = selectedIndex == i,
                     onClick = { onSelectIndex(i) },
                     text = {
                         Text(statement.year.toString())
                     }
                 )
             }
         }
 
         Text(
             modifier = Modifier.padding(16.dp),
             style = MaterialTheme.typography.titleLarge,
             text = stringResource(R.string.donau_statement_instruction),
             textAlign = TextAlign.Center,
         )
 
         QrCodeUriComposable(
             modifier = Modifier
                 .padding(horizontal = 16.dp)
                 .padding(bottom = 8.dp),
             qrData = statement.uri,
             clipboardLabel = "Donau",
             buttonText = stringResource(id = R.string.copy),
             params = QrCodeParams.Taler,
             shareAsQrCode = true,
         )
 
         TransactionAmountComposable(
             label = stringResource(id = R.string.amount_total),
             amount = statement.total,
             amountType = AmountType.Neutral,
         )
 
         TransactionInfoComposable(
             label = stringResource(R.string.donau_statement_legal_domain),
             info = statement.legalDomain,
         )
 
         val host = statement.host
         if (host != null) TransactionInfoComposable(
             label = stringResource(R.string.donau_statement_tax_authority),
             info = host,
             marquee = true,
         )
 
         BottomInsetsSpacer()
     }
 }
 
 @Preview
 @Composable
 fun DonauStatementComposablePreview() {
     TalerSurface {
         var selectedIndex by remember { mutableIntStateOf(0) }
         DonauStatementComposable(
             statements = listOf(
                 DonauStatement(
                     total = Amount.fromJSONString("KUDOS:0.1"),
                     year = 2025,
                     legalDomain = "Gnuland",
                     uri = "donau://donau.test.taler.net/",
                     donationStatementSig = "123456",
                     donauPub = "123456",
                 ),
                 DonauStatement(
                     total = Amount.fromJSONString("KUDOS:100.0"),
                     year = 2024,
                     legalDomain = "Gnuland",
                     uri = "donau://donau.test.taler.net/",
                     donationStatementSig = "123456",
                     donauPub = "123456",
                 ),
             ),
             selectedIndex = selectedIndex,
             onSelectIndex = { selectedIndex = it },
         )
     }
 }