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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | 41x 41x 41x 41x 831x 831x 831x 831x 402x 25x 429x 427x 427x 19x 2x 2x 2x | import { CollectionStore } from '../types';
import { EMPTY, Observable, Subject, delay, of, tap } from 'rxjs';
import { InMemoryStore } from './InMemoryStore';
import { observeAll } from '../util';
export class InMemoryCollectionStore<T> extends InMemoryStore implements CollectionStore<T> {
readonly #updates$ = new Subject<T[]>();
protected docs: T[] = [];
observeAll: CollectionStore<T>['observeAll'];
constructor() {
super();
this.observeAll = observeAll(this, this.#updates$);
}
getAll(): Observable<T[]> {
if (this.docs.length === 0 || this.destroyed) return EMPTY;
return of(this.docs);
}
setAll(docs: T[]): Observable<void> {
if (!this.destroyed) {
this.docs = docs;
return of(void 0).pipe(
// if setAll is called on 1st emission of observeAll,
// then this has to be asynchronous for observeAll to emit the 2nd item.
// any delay duration is ok: it's enough that this is called in the next tick
delay(1),
tap(() => this.#updates$.next(this.docs))
);
}
return EMPTY;
}
destroy(): Observable<void> {
this.#updates$.complete();
return super.destroy();
}
}
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