34 lines
1.2 KiB
TypeScript
34 lines
1.2 KiB
TypeScript
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import { Injectable } from '@angular/core';
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import { HttpClient } from '@angular/common/http';
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import { Observable, catchError, map, of, shareReplay } from 'rxjs';
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import { WidgetManifestEntry, WidgetManifestFile } from '../contracts/widget-manifest.contract';
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@Injectable({ providedIn: 'root' })
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export class WidgetManifestService {
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private readonly manifestUrl = '/assets/mock/bootstrap/widget-manifest.json';
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private manifest$?: Observable<WidgetManifestFile>;
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constructor(private readonly http: HttpClient) {}
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getManifest(): Observable<WidgetManifestFile> {
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if (!this.manifest$) {
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this.manifest$ = this.http.get<WidgetManifestFile>(this.manifestUrl).pipe(
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shareReplay({ bufferSize: 1, refCount: true }),
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catchError(() => {
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this.manifest$ = undefined;
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return of({ widgets: [] });
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})
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);
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}
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return this.manifest$;
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}
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getWidgets(): Observable<WidgetManifestEntry[]> {
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return this.getManifest().pipe(map((manifest) => manifest.widgets ?? []));
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}
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getWidget(type: string): Observable<WidgetManifestEntry | undefined> {
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return this.getWidgets().pipe(map((widgets) => widgets.find((widget) => widget.type === type)));
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}
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}
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