1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/*
* 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.payment
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.Button
import androidx.compose.material3.CircularProgressIndicator
import androidx.compose.material3.ExperimentalMaterial3Api
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.OutlinedTextField
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment.Companion.Center
import androidx.compose.ui.Alignment.Companion.End
import androidx.compose.ui.Modifier
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import net.taler.common.Amount
import net.taler.wallet.AmountResult
import net.taler.wallet.R
import net.taler.wallet.compose.AmountInputField
import net.taler.wallet.compose.TalerSurface
import net.taler.wallet.deposit.CurrencyDropdown
sealed class AmountFieldStatus {
object FixedAmount: AmountFieldStatus()
class Default(
val amountStr: String? = null,
val currency: String? = null,
): AmountFieldStatus()
object Invalid: AmountFieldStatus()
}
@Composable
fun PayTemplateComposable(
summary: String?,
amountStatus: AmountFieldStatus,
currencies: List<String>,
payStatus: PayStatus,
onCreateAmount: (String, String) -> AmountResult,
onSubmit: (Map<String, String>) -> Unit,
onError: (resId: Int) -> Unit,
) {
// If wallet is empty, there's no way the user can pay something
if (amountStatus is AmountFieldStatus.Invalid) {
PayTemplateError(stringResource(R.string.receive_amount_invalid))
} else if (payStatus is PayStatus.InsufficientBalance || currencies.isEmpty()) {
PayTemplateError(stringResource(R.string.payment_balance_insufficient))
} else when (payStatus) {
is PayStatus.None -> PayTemplateDefault(
currencies = currencies,
summary = summary,
amountStatus = amountStatus,
onCreateAmount = onCreateAmount,
onError = onError,
onSubmit = { s, a ->
onSubmit(mutableMapOf<String, String>().apply {
s?.let { put("summary", it) }
a?.let { put("amount", it.toJSONString()) }
})
}
)
is PayStatus.Loading -> PayTemplateLoading()
is PayStatus.AlreadyPaid -> PayTemplateError(stringResource(R.string.payment_already_paid))
// TODO we should handle the other cases or explain why we don't handle them
else -> {}
}
}
@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun PayTemplateDefault(
currencies: List<String>,
summary: String? = null,
amountStatus: AmountFieldStatus,
onCreateAmount: (String, String) -> AmountResult,
onError: (msgRes: Int) -> Unit,
onSubmit: (summary: String?, amount: Amount?) -> Unit,
) {
val amountDefault = amountStatus as? AmountFieldStatus.Default
var localSummary by remember { mutableStateOf(summary) }
var localAmount by remember { mutableStateOf(
amountDefault?.let { s -> s.amountStr ?: "0" }
) }
var localCurrency by remember { mutableStateOf(
amountDefault?.let { s -> s.currency ?: currencies[0] }
) }
Column(horizontalAlignment = End) {
localSummary?.let { summary ->
OutlinedTextField(
modifier = Modifier
.padding(horizontal = 16.dp)
.fillMaxWidth(),
value = summary,
isError = summary.isBlank(),
onValueChange = { localSummary = it },
singleLine = true,
label = { Text(stringResource(R.string.withdraw_manual_ready_subject)) },
)
}
localAmount?.let { amount ->
localCurrency?.let { currency ->
AmountField(
modifier = Modifier
.padding(16.dp)
.fillMaxWidth(),
amount = amount,
currency = currency,
currencies = currencies,
fixedCurrency = (amountStatus as? AmountFieldStatus.Default)?.currency != null,
onAmountChosen = { a, c ->
localAmount = a
localCurrency = c
},
)
}
}
Button(
modifier = Modifier.padding(16.dp),
enabled = localSummary == null || localSummary!!.isNotBlank(),
onClick = {
localAmount?.let { amount ->
localCurrency?.let { currency ->
when (val res = onCreateAmount(amount, currency)) {
is AmountResult.InsufficientBalance -> onError(R.string.payment_balance_insufficient)
is AmountResult.InvalidAmount -> onError(R.string.receive_amount_invalid)
is AmountResult.Success -> onSubmit(summary, res.amount)
}
}
}
},
) {
Text(stringResource(R.string.payment_create_order))
}
}
}
@Composable
fun PayTemplateError(message: String) {
Box(
modifier = Modifier.fillMaxSize(),
contentAlignment = Center,
) {
Text(
text = message,
style = MaterialTheme.typography.titleLarge,
color = MaterialTheme.colorScheme.error,
)
}
}
@Composable
fun PayTemplateLoading() {
Box(
modifier = Modifier.fillMaxSize(),
contentAlignment = Center,
) {
CircularProgressIndicator()
}
}
@Composable
private fun AmountField(
modifier: Modifier = Modifier,
currencies: List<String>,
fixedCurrency: Boolean,
amount: String,
currency: String,
onAmountChosen: (amount: String, currency: String) -> Unit,
) {
Row(
modifier = modifier,
) {
AmountInputField(
modifier = Modifier
.padding(end = 16.dp)
.weight(1f),
value = amount,
onValueChange = { onAmountChosen(it, currency) },
label = { Text(stringResource(R.string.send_amount)) }
)
CurrencyDropdown(
modifier = Modifier.weight(1f),
initialCurrency = currency,
currencies = currencies,
onCurrencyChanged = { onAmountChosen(amount, it) },
readOnly = fixedCurrency,
)
}
}
@Preview
@Composable
fun PayTemplateComposablePreview() {
TalerSurface {
PayTemplateComposable(
summary = "Donation",
amountStatus = AmountFieldStatus.Default("20", "ARS"),
currencies = listOf("KUDOS", "ARS"),
// TODO create previews for other states
payStatus = PayStatus.None,
onCreateAmount = { text, currency ->
AmountResult.Success(amount = Amount.fromString(currency, text))
},
onSubmit = { },
onError = { },
)
}
}
|
