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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.anastasis.ui.common
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.lazy.LazyColumn
import androidx.compose.foundation.lazy.items
import androidx.compose.material3.ExperimentalMaterial3Api
import androidx.compose.material3.OutlinedTextField
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.collectAsState
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateMapOf
import androidx.compose.runtime.remember
import androidx.compose.ui.Modifier
import androidx.compose.ui.input.nestedscroll.nestedScroll
import androidx.compose.ui.res.stringResource
import androidx.hilt.navigation.compose.hiltViewModel
import kotlinx.datetime.toLocalDate
import net.taler.anastasis.R
import net.taler.anastasis.shared.Utils
import net.taler.anastasis.models.ReducerState
import net.taler.anastasis.models.UserAttributeSpec
import net.taler.anastasis.shared.FieldStatus
import net.taler.anastasis.ui.reusable.components.DatePickerField
import net.taler.anastasis.ui.reusable.pages.WizardPage
import net.taler.anastasis.ui.theme.LocalSpacing
import net.taler.anastasis.viewmodels.ReducerViewModel
@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun SelectUserAttributesScreen(
viewModel: ReducerViewModel = hiltViewModel(),
) {
val reducerState by viewModel.reducerState.collectAsState()
val userAttributes = when (val state = reducerState) {
is ReducerState.Backup -> state.requiredAttributes
is ReducerState.Recovery -> state.requiredAttributes
else -> error("invalid reducer state type")
} ?: emptyList()
val identityAttributes = when(val state = reducerState) {
is ReducerState.Backup -> state.identityAttributes
is ReducerState.Recovery -> state.identityAttributes
else -> error("invalid reducer state type")
} ?: emptyMap()
val values = remember { mutableStateMapOf(
*identityAttributes.toList().toTypedArray()
) }
WizardPage(
title = stringResource(R.string.select_user_attributes_title),
onBackClicked = { viewModel.goHome() },
onPrevClicked = { viewModel.goBack() },
onNextClicked = {
viewModel.reducerManager.enterUserAttributes(values)
},
enableNext = userAttributes.fold(true) { a, b ->
a && (fieldStatus(b, values[b.name]) == FieldStatus.Valid)
}
) { scrollConnection ->
LazyColumn(
modifier = Modifier
.fillMaxSize()
.nestedScroll(scrollConnection),
verticalArrangement = Arrangement.Top,
) {
items(items = userAttributes) { attr ->
val status = fieldStatus(attr, values[attr.name])
val supportingText: @Composable () -> Unit = @Composable {
status.msgRes?.let {
Text(stringResource(it))
} ?: if (attr.optional == true) {
Text(stringResource(R.string.field_optional))
} else null
}
when (attr.type) {
"string" -> OutlinedTextField(
modifier = Modifier
.padding(
start = LocalSpacing.current.medium,
end = LocalSpacing.current.medium,
)
.fillMaxWidth(),
value = values[attr.name] ?: "",
onValueChange = { values[attr.name] = it },
isError = status.error,
supportingText = supportingText,
label = { Text(attr.label) },
)
"date" -> DatePickerField(
modifier = Modifier
.padding(
start = LocalSpacing.current.medium,
end = LocalSpacing.current.medium,
)
.fillMaxWidth(),
label = attr.label,
isError = status.error,
supportingText = supportingText,
date = values[attr.name]?.toLocalDate(),
onDateSelected = { date ->
values[attr.name] = Utils.formatDate(date)
},
)
}
Spacer(Modifier.height(LocalSpacing.current.small))
}
}
}
}
fun fieldStatus(
field: UserAttributeSpec,
value: String? = null,
): FieldStatus = if (value == null) {
FieldStatus.Null
} else {
if (value.isNotBlank()) {
field.validationRegex?.toRegex()?.let {
if (value.matches(it))
FieldStatus.Valid else FieldStatus.Invalid
} ?: FieldStatus.Valid
} else if (field.optional == true)
FieldStatus.Valid else FieldStatus.Blank
}
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