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/*
* This file is part of GNU Taler
* (C) 2023 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 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.material3.Button
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.platform.LocalFocusManager
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 net.taler.common.Amount
import net.taler.wallet.CURRENCY_BTC
import net.taler.wallet.R
import net.taler.wallet.transactions.AmountType
import net.taler.wallet.transactions.TransactionAmountComposable
@Composable
fun MakeBitcoinDepositComposable(
state: DepositState,
amount: Amount,
bitcoinAddress: String? = null,
onMakeDeposit: (Amount, String) -> Unit,
) {
val scrollState = rememberScrollState()
Column(
modifier = Modifier
.fillMaxWidth()
.verticalScroll(scrollState),
horizontalAlignment = CenterHorizontally,
) {
var address by rememberSaveable { mutableStateOf(bitcoinAddress ?: "") }
val focusRequester = remember { FocusRequester() }
OutlinedTextField(
modifier = Modifier
.padding(16.dp)
.focusRequester(focusRequester),
value = address,
singleLine = true,
enabled = !state.showFees,
onValueChange = { input ->
address = input
},
isError = address.isBlank(),
label = {
Text(
stringResource(R.string.send_deposit_bitcoin_address),
color = if (address.isBlank()) {
MaterialTheme.colorScheme.error
} else Color.Unspecified,
)
}
)
LaunchedEffect(Unit) {
focusRequester.requestFocus()
}
val amountTitle = if (state.effectiveDepositAmount == null) {
R.string.amount_chosen
} else R.string.send_deposit_amount_effective
TransactionAmountComposable(
label = stringResource(id = amountTitle),
amount = state.effectiveDepositAmount ?: amount,
amountType = AmountType.Positive,
)
AnimatedVisibility(visible = state.showFees) {
Column(
modifier = Modifier.fillMaxWidth(),
horizontalAlignment = CenterHorizontally,
) {
val totalAmount = state.totalDepositCost ?: amount
val effectiveAmount = state.effectiveDepositAmount ?: Amount.zero(amount.currency)
val fee = totalAmount - effectiveAmount
TransactionAmountComposable(
label = stringResource(id = R.string.withdraw_fees),
amount = fee,
amountType = AmountType.Negative,
)
TransactionAmountComposable(
label = stringResource(id = R.string.send_amount),
amount = totalAmount,
amountType = AmountType.Positive,
)
}
}
AnimatedVisibility(visible = state is DepositState.Error) {
Text(
modifier = Modifier.padding(16.dp),
fontSize = 18.sp,
color = MaterialTheme.colorScheme.error,
text = (state as? DepositState.Error)?.error?.userFacingMsg ?: "",
)
}
val focusManager = LocalFocusManager.current
Button(
modifier = Modifier.padding(16.dp),
enabled = address.isNotBlank(),
onClick = {
focusManager.clearFocus()
// TODO validate bitcoin address
onMakeDeposit(amount, address)
},
) {
Text(text = stringResource(
if (state.showFees) R.string.send_deposit_bitcoin_create_button
else R.string.send_deposit_check_fees_button
))
}
}
}
@Preview
@Composable
fun PreviewMakeBitcoinDepositComposable() {
Surface {
val state = DepositState.FeesChecked(
effectiveDepositAmount = Amount.fromString(CURRENCY_BTC, "42.00"),
totalDepositCost = Amount.fromString(CURRENCY_BTC, "42.23"),
)
MakeBitcoinDepositComposable(
state = state,
amount = Amount.fromString(CURRENCY_BTC, "42.23")) { _, _ ->
}
}
}
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