86 lines
2.4 KiB
TypeScript
86 lines
2.4 KiB
TypeScript
/*
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This file is part of TALER
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(C) 2016 GNUnet e.V.
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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import {
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NotificationType, TalerErrorDetail
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} from "@gnu-taler/taler-util";
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import { TalerError } from "@gnu-taler/taler-wallet-core";
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import { useEffect, useMemo, useState } from "preact/hooks";
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import * as wxApi from "../wxApi.js";
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export interface HookOk<T> {
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hasError: false;
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response: T;
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}
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export type HookError = HookGenericError | HookOperationalError;
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export interface HookGenericError {
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hasError: true;
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operational: false;
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message: string;
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}
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export interface HookOperationalError {
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hasError: true;
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operational: true;
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details: TalerErrorDetail;
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}
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export type HookResponse<T> = HookOk<T> | HookError | undefined;
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export function useAsyncAsHook<T>(
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fn: () => Promise<T>,
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updateOnNotification?: Array<NotificationType>,
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deps?: any[],
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): HookResponse<T> {
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const args = useMemo(() => ({
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fn, updateOnNotification
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// eslint-disable-next-line react-hooks/exhaustive-deps
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}), deps || [])
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const [result, setHookResponse] = useState<HookResponse<T>>(undefined);
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useEffect(() => {
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async function doAsync(): Promise<void> {
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try {
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const response = await args.fn();
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setHookResponse({ hasError: false, response });
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} catch (e) {
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if (e instanceof TalerError) {
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setHookResponse({
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hasError: true,
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operational: true,
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details: e.errorDetail,
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});
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} else if (e instanceof Error) {
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setHookResponse({
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hasError: true,
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operational: false,
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message: e.message,
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});
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}
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}
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}
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doAsync();
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if (args.updateOnNotification && args.updateOnNotification.length > 0) {
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return wxApi.onUpdateNotification(args.updateOnNotification, () => {
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doAsync();
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});
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}
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}, [args]);
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return result;
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}
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