Merge branch 'master' into ozg-6647-network-policy-for-scraper

alfa-client/libs/admin-settings/src/lib/postfach/postfach.service.ts → alfa-client/libs/admin/settings/src/lib/postfach/postfach.service.ts

-import { HttpError, StateResource } from '@alfa-client/tech-shared';
+import { createEmptyStateResource, StateResource } from '@alfa-client/tech-shared';
+import { SnackBarService } from '@alfa-client/ui';
 import { Injectable } from '@angular/core';
-import { Observable } from 'rxjs';
+import { Observable, startWith, tap } from 'rxjs';
 import { SettingName } from '../admin-settings.model';
 import { PostfachResourceService } from './postfach-resource.service';
 import { Postfach, PostfachResource, PostfachSettingsItem } from './postfach.model';
 
 @Injectable()
 export class PostfachService {
-  constructor(private postfachResourceService: PostfachResourceService) {}
+  constructor(
+    private postfachResourceService: PostfachResourceService,
+    private snackbarService: SnackBarService,
+  ) {}
 
   public get(): Observable<StateResource<PostfachResource>> {
     return this.postfachResourceService.get();
   }
 
-  public save(postfach: Postfach): Observable<StateResource<PostfachResource | HttpError>> {
-    return this.postfachResourceService.save(this.buildPostfachSettingItem(postfach));
+  public save(postfach: Postfach): Observable<StateResource<PostfachResource>> {
+    return this.postfachResourceService.save(this.buildPostfachSettingItem(postfach)).pipe(
+      tap((stateResource: StateResource<PostfachResource>) =>
+        this.showInfoAfterSave(stateResource),
+      ),
+      startWith(createEmptyStateResource<PostfachResource>(true)),
+    );
+  }
+
+  private showInfoAfterSave(stateResource: StateResource<PostfachResource>) {
+    if (!stateResource.loading) {
+      this.snackbarService.showInfo('Die Signatur wird erfolgreich gespeichert.');
+    }
   }
 
   private buildPostfachSettingItem(postfach: Postfach): PostfachSettingsItem {