MacPro
117 lines
4.2 KiB
JavaScript
117 lines
4.2 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.GetServiceManifest = void 0;
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exports.getServiceManifest = getServiceManifest;
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const AbortedError_1 = require("../../../base/lib/util/AbortedError");
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const Drop_1 = require("../../../base/lib/util/Drop");
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const deepEqual_1 = require("../../../base/lib/util/deepEqual");
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class GetServiceManifest {
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constructor(effects, packageId, map, eq) {
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this.effects = effects;
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this.packageId = packageId;
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this.map = map;
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this.eq = eq;
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}
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/**
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* Returns the manifest of a service. Reruns the context from which it has been called if the underlying value changes
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*/
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async const() {
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let abort = new AbortController();
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const watch = this.watch(abort.signal);
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const res = await watch.next();
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if (this.effects.constRetry) {
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watch
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.next()
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.then(() => {
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abort.abort();
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this.effects.constRetry && this.effects.constRetry();
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})
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.catch();
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}
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return res.value;
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}
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/**
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* Returns the manifest of a service. Does nothing if it changes
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*/
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async once() {
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const manifest = await this.effects.getServiceManifest({
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packageId: this.packageId,
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});
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return this.map(manifest);
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}
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async *watchGen(abort) {
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let prev = null;
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const resolveCell = { resolve: () => { } };
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this.effects.onLeaveContext(() => {
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resolveCell.resolve();
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});
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abort?.addEventListener('abort', () => resolveCell.resolve());
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while (this.effects.isInContext && !abort?.aborted) {
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let callback = () => { };
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const waitForNext = new Promise((resolve) => {
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callback = resolve;
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resolveCell.resolve = resolve;
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});
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const next = this.map(await this.effects.getServiceManifest({
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packageId: this.packageId,
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callback: () => callback(),
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}));
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if (!prev || !this.eq(prev.value, next)) {
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prev = { value: next };
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yield next;
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}
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await waitForNext;
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}
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return new Promise((_, rej) => rej(new AbortedError_1.AbortedError()));
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}
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/**
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* Watches the manifest of a service. Returns an async iterator that yields whenever the value changes
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*/
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watch(abort) {
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const ctrl = new AbortController();
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abort?.addEventListener('abort', () => ctrl.abort());
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return Drop_1.DropGenerator.of(this.watchGen(ctrl.signal), () => ctrl.abort());
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}
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/**
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* Watches the manifest of a service. Takes a custom callback function to run whenever it changes
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*/
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onChange(callback) {
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;
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(async () => {
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const ctrl = new AbortController();
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for await (const value of this.watch(ctrl.signal)) {
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try {
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const res = await callback(value);
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if (res.cancel) {
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ctrl.abort();
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break;
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}
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}
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catch (e) {
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console.error('callback function threw an error @ GetServiceManifest.onChange', e);
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}
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}
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})()
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.catch((e) => callback(null, e))
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.catch((e) => console.error('callback function threw an error @ GetServiceManifest.onChange', e));
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}
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/**
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* Watches the manifest of a service. Returns when the predicate is true
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*/
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waitFor(pred) {
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const ctrl = new AbortController();
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return Drop_1.DropPromise.of(Promise.resolve().then(async () => {
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for await (const next of this.watchGen(ctrl.signal)) {
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if (pred(next)) {
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return next;
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}
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}
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throw new Error('context left before predicate passed');
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}), () => ctrl.abort());
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}
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}
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exports.GetServiceManifest = GetServiceManifest;
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function getServiceManifest(effects, packageId, map, eq) {
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return new GetServiceManifest(effects, packageId, map ?? ((a) => a), eq ?? ((a, b) => (0, deepEqual_1.deepEqual)(a, b)));
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}
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//# sourceMappingURL=GetServiceManifest.js.map
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