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
|
/*
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/>
*/
import { FeeDescription, OperationMap } from "@gnu-taler/taler-util";
import { createDenominationPairTimeline } from "@gnu-taler/taler-wallet-core";
import { useState } from "preact/hooks";
import { useAsyncAsHook } from "../../hooks/useAsyncAsHook.js";
import * as wxApi from "../../wxApi.js";
import { Props, State } from "./index.js";
export function useComponentState(
{ onCancel, onSelection, currency }: Props,
api: typeof wxApi,
): State {
const initialValue = 0
const [value, setValue] = useState(String(initialValue));
const hook = useAsyncAsHook(async () => {
const { exchanges } = await api.listExchanges()
const selectedIdx = parseInt(value, 10)
const selectedExchange = exchanges.length == 0 ? undefined : exchanges[selectedIdx]
const selected = !selectedExchange ? undefined : await api.getExchangeDetailedInfo(selectedExchange.exchangeBaseUrl)
const initialExchange = selectedIdx === initialValue ? undefined : exchanges[initialValue]
const original = !initialExchange ? undefined : await api.getExchangeDetailedInfo(initialExchange.exchangeBaseUrl)
return { exchanges, selected, original }
});
if (!hook) {
return {
status: "loading",
error: undefined,
}
}
if (hook.hasError) {
return {
status: "loading-uri",
error: hook,
};
}
const { exchanges, selected, original } = hook.response;
if (!selected) {
//!selected <=> exchanges.length === 0
return {
status: "no-exchanges",
error: undefined
}
}
const exchangeMap = exchanges.reduce((prev, cur, idx) => ({ ...prev, [cur.exchangeBaseUrl]: String(idx) }), {} as Record<string, string>)
if (!original) {
// !original <=> selected == original
return {
status: "ready",
exchanges: {
list: exchangeMap,
value: value,
onChange: async (v) => {
setValue(v)
}
},
error: undefined,
onClose: {
onClick: onCancel
},
selected,
timeline: selected.feesDescription
}
}
const pairTimeline: OperationMap<FeeDescription[]> = {
deposit: createDenominationPairTimeline(selected.feesDescription.deposit, original.feesDescription.deposit),
refresh: createDenominationPairTimeline(selected.feesDescription.refresh, original.feesDescription.refresh),
refund: createDenominationPairTimeline(selected.feesDescription.refund, original.feesDescription.refund),
withdraw: createDenominationPairTimeline(selected.feesDescription.withdraw, original.feesDescription.withdraw),
}
return {
status: "comparing",
exchanges: {
list: exchangeMap,
value: value,
onChange: async (v) => {
setValue(v)
}
},
error: undefined,
onReset: {
onClick: async () => {
setValue(String(initialValue))
}
},
onSelect: {
onClick: async () => {
onSelection(selected.exchangeBaseUrl)
}
},
selected,
pairTimeline,
}
}
|
