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/*
* 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.peer
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.material3.Button
import androidx.compose.material3.ExperimentalMaterial3Api
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.OutlinedTextField
import androidx.compose.material3.Surface
import androidx.compose.material3.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.Companion.CenterHorizontally
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.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.R
import kotlin.random.Random
@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun OutgoingPushIntroComposable(
state: OutgoingState,
amount: Amount,
onSend: (amount: Amount, summary: String, hours: Long) -> Unit,
) {
val scrollState = rememberScrollState()
Column(
modifier = Modifier
.fillMaxWidth()
.padding(16.dp)
.verticalScroll(scrollState),
horizontalAlignment = CenterHorizontally,
) {
Text(
modifier = Modifier.padding(vertical = 16.dp),
text = amount.toString(),
softWrap = false,
style = MaterialTheme.typography.titleLarge,
)
if (state is OutgoingChecked) {
val fee = state.amountEffective - state.amountRaw
Text(
modifier = Modifier.padding(vertical = 16.dp),
text = stringResource(id = R.string.payment_fee, fee),
softWrap = false,
color = MaterialTheme.colorScheme.error,
)
}
var subject by rememberSaveable { mutableStateOf("") }
val focusRequester = remember { FocusRequester() }
OutlinedTextField(
modifier = Modifier
.fillMaxWidth()
.focusRequester(focusRequester),
singleLine = true,
value = subject,
onValueChange = { input ->
if (input.length <= MAX_LENGTH_SUBJECT)
subject = input.replace('\n', ' ')
},
isError = subject.isBlank(),
label = {
Text(
stringResource(R.string.send_peer_purpose),
color = if (subject.isBlank()) {
MaterialTheme.colorScheme.error
} else Color.Unspecified,
)
}
)
LaunchedEffect(Unit) {
focusRequester.requestFocus()
}
Text(
modifier = Modifier
.fillMaxWidth()
.padding(top = 5.dp),
color = if (subject.isBlank()) MaterialTheme.colorScheme.error else Color.Unspecified,
text = stringResource(R.string.char_count, subject.length, MAX_LENGTH_SUBJECT),
textAlign = TextAlign.End,
)
Text(
modifier = Modifier.padding(top = 16.dp, start = 16.dp, end = 16.dp),
text = stringResource(R.string.send_peer_expiration_period),
style = MaterialTheme.typography.bodyMedium,
)
var option by rememberSaveable { mutableStateOf(DEFAULT_EXPIRY) }
var hours by rememberSaveable { mutableStateOf(DEFAULT_EXPIRY.hours) }
ExpirationComposable(
modifier = Modifier.padding(top = 8.dp, bottom = 16.dp),
option = option,
hours = hours,
onOptionChange = { option = it }
) { hours = it }
Text(
modifier = Modifier.padding(top = 8.dp, bottom = 16.dp),
text = stringResource(R.string.send_peer_warning),
)
Button(
enabled = state is OutgoingChecked && subject.isNotBlank(),
onClick = { onSend(amount, subject, hours) },
) {
Text(text = stringResource(R.string.send_peer_create_button))
}
}
}
@Preview
@Composable
fun PeerPushIntroComposableCheckingPreview() {
Surface {
val state = if (Random.nextBoolean()) OutgoingIntro else OutgoingChecking
OutgoingPushIntroComposable(state, Amount.fromDouble("TESTKUDOS", 42.23)) { _, _, _ -> }
}
}
@Preview
@Composable
fun PeerPushIntroComposableCheckedPreview() {
Surface {
val amountEffective = Amount.fromDouble("TESTKUDOS", 42.42)
val amountRaw = Amount.fromDouble("TESTKUDOS", 42.23)
val state = OutgoingChecked(amountRaw, amountEffective)
OutgoingPushIntroComposable(state, amountEffective) { _, _, _ -> }
}
}
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