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/*
This file is part of GNU Taler
(C) 2022-2024 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 {
AbsoluteTime,
AmountJson,
Amounts,
TalerExchangeApi,
} from "@gnu-taler/taler-util";
import { format, parse } from "date-fns";
import { StringConverter } from "./FormProvider.js";
export const amlStateConverter = {
toStringUI: stringifyAmlState,
fromStringUI: parseAmlState,
};
function stringifyAmlState(s: TalerExchangeApi.AmlState | undefined): string {
if (s === undefined) return "";
switch (s) {
case TalerExchangeApi.AmlState.normal:
return "normal";
case TalerExchangeApi.AmlState.pending:
return "pending";
case TalerExchangeApi.AmlState.frozen:
return "frozen";
}
}
function parseAmlState(s: string | undefined): TalerExchangeApi.AmlState {
switch (s) {
case "normal":
return TalerExchangeApi.AmlState.normal;
case "pending":
return TalerExchangeApi.AmlState.pending;
case "frozen":
return TalerExchangeApi.AmlState.frozen;
default:
throw Error(`unknown AML state: ${s}`);
}
}
const nullConverter: StringConverter<string> = {
fromStringUI(v: string | undefined): string {
return v ?? "";
},
toStringUI(v: unknown): string {
return v as string;
},
};
function amountConverter(config: any): StringConverter<AmountJson> {
const currency = config["currency"];
if (!currency || typeof currency !== "string") {
throw Error(`amount converter needs a currency`);
}
return {
fromStringUI(v: string | undefined): AmountJson {
// FIXME: requires currency
return (
Amounts.parse(`${currency}:${v}`) ?? Amounts.zeroOfCurrency(currency)
);
},
toStringUI(v: unknown): string {
return v === undefined ? "" : Amounts.stringifyValue(v as AmountJson);
},
};
}
function absTimeConverter(config: any): StringConverter<AbsoluteTime> {
const pattern = config["pattern"];
if (!pattern || typeof pattern !== "string") {
throw Error(`absTime converter needs a pattern`);
}
return {
fromStringUI(v: string | undefined): AbsoluteTime {
if (v === undefined) {
return AbsoluteTime.never();
}
try {
const time = parse(v, pattern, new Date());
return AbsoluteTime.fromMilliseconds(time.getTime());
} catch (e) {
return AbsoluteTime.never();
}
},
toStringUI(v: unknown): string {
if (v === undefined) return "";
const d = v as AbsoluteTime;
if (d.t_ms === "never") return "never";
try {
return format(d.t_ms, pattern);
} catch (e) {
return "";
}
},
};
}
export function getConverterById(
id: string | undefined,
config: unknown,
): StringConverter<unknown> {
if (id === "Taler.AbsoluteTime") {
// @ts-expect-error check this
return absTimeConverter(config);
}
if (id === "Taler.Amount") {
// @ts-expect-error check this
return amountConverter(config);
}
if (id === "TalerExchangeApi.AmlState") {
// @ts-expect-error check this
return amlStateConverter;
}
return nullConverter as StringConverter<unknown>;
}
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