global filter

src/app/services/filter-store.service.ts

@@ -0,0 +1,51 @@
+import {Injectable} from '@angular/core';
+import {BehaviorSubject, Observable} from 'rxjs';
+import {FilterValues as SongFilterValues} from '../modules/songs/song-list/filter/filter-values';
+import {FilterValues as ShowFilterValues} from '../modules/shows/list/filter/filter-values';
+
+const DEFAULT_SONG_FILTER: SongFilterValues = {
+  q: '',
+  type: '',
+  key: '',
+  legalType: '',
+  flag: '',
+};
+
+const DEFAULT_SHOW_FILTER: ShowFilterValues = {
+  time: 1,
+  owner: '',
+  showType: '',
+};
+
+@Injectable({
+  providedIn: 'root',
+})
+export class FilterStoreService {
+  private readonly songFilterSubject = new BehaviorSubject<SongFilterValues>(DEFAULT_SONG_FILTER);
+  private readonly showFilterSubject = new BehaviorSubject<ShowFilterValues>(DEFAULT_SHOW_FILTER);
+
+  public readonly songFilter$: Observable<SongFilterValues> = this.songFilterSubject.asObservable();
+  public readonly showFilter$: Observable<ShowFilterValues> = this.showFilterSubject.asObservable();
+
+  public updateSongFilter(filter: Partial<SongFilterValues>): void {
+    this.songFilterSubject.next({
+      ...this.songFilterSubject.value,
+      ...filter,
+    });
+  }
+
+  public updateShowFilter(filter: Partial<ShowFilterValues>): void {
+    this.showFilterSubject.next({
+      ...this.showFilterSubject.value,
+      ...filter,
+    });
+  }
+
+  public resetSongFilter(): void {
+    this.songFilterSubject.next(DEFAULT_SONG_FILTER);
+  }
+
+  public resetShowFilter(): void {
+    this.showFilterSubject.next(DEFAULT_SHOW_FILTER);
+  }
+}