guest mode

src/app/modules/guest/guest-show-data.service.ts

@@ -0,0 +1,23 @@
+import {Injectable} from '@angular/core';
+import {BehaviorSubject, Observable} from 'rxjs';
+import {map} from 'rxjs/operators';
+import {DbService} from 'src/app/services/db.service';
+import {GuestShow} from './guest-show';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class GuestShowDataService {
+  public list$: BehaviorSubject<GuestShow[]> = new BehaviorSubject<GuestShow[]>([]);
+  private collection = 'guest';
+
+  public constructor(private dbService: DbService) {
+    this.dbService.col$<GuestShow>(this.collection).subscribe(_ => this.list$.next(_));
+  }
+
+  public read$: (id: string) => Observable<GuestShow | null> = (id: string): Observable<GuestShow | null> => this.list$.pipe(map(_ => _.find(s => s.id === id) || null));
+  public update$: (id: string, data: Partial<GuestShow>) => Promise<void> = async (id: string, data: Partial<GuestShow>): Promise<void> =>
+    await this.dbService.doc(this.collection + '/' + id).update(data);
+  public add: (data: Partial<GuestShow>) => Promise<string> = async (data: Partial<GuestShow>): Promise<string> => (await this.dbService.col(this.collection).add(data)).id;
+  public delete: (id: string) => Promise<void> = async (id: string): Promise<void> => await this.dbService.doc(this.collection + '/' + id).delete();
+}