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/*
* SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
import TimeoutError from './TimeoutError';
import getLogger from './getLogger';
const log = getLogger('utils.PendingTask');
export default class PendingTask<T> {
private readonly resolveCallback: (value: T) => void;
private readonly rejectCallback: (reason?: unknown) => void;
private resolved = false;
private timeout: number | undefined;
constructor(
resolveCallback: (value: T) => void,
rejectCallback: (reason?: unknown) => void,
timeoutMs: number | undefined,
timeoutCallback?: (() => void) | undefined,
) {
this.resolveCallback = resolveCallback;
this.rejectCallback = rejectCallback;
this.timeout = setTimeout(() => {
if (!this.resolved) {
this.reject(new TimeoutError());
timeoutCallback?.();
}
}, timeoutMs);
}
resolve(value: T): void {
if (this.resolved) {
log.warn('Trying to resolve already resolved promise');
return;
}
this.markResolved();
this.resolveCallback(value);
}
reject(reason?: unknown): void {
if (this.resolved) {
log.warn('Trying to reject already resolved promise');
return;
}
this.markResolved();
this.rejectCallback(reason);
}
private markResolved() {
this.resolved = true;
if (this.timeout !== undefined) {
clearTimeout(this.timeout);
this.timeout = undefined;
}
}
}
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