fix lf lint rule

.browserslistrc

@@ -1,12 +1,7 @@
-# This file is used by the build system to adjust CSS and JS output to support the specified browsers below.
+# Angular 21-supported baseline to avoid unsupported-browser build warnings.
-# For additional information regarding the format and rule options, please see:
+last 2 Chrome major versions
-# https://github.com/browserslist/browserslist#queries
+last 2 Edge major versions
-
+last 2 Firefox major versions
-# You can see what browsers were selected by your queries by running:
-#   npx browserslist
-
-> 0.5%
-last 2 versions
 Firefox ESR
-not dead
+last 2 Safari major versions
-not IE 9-11 # For IE 9-11 support, remove 'not'.
+last 2 iOS major versions

.eslintrc.json

@@ -24,6 +24,12 @@
         "plugin:prettier/recommended"
       ],
       "rules": {
+        "prettier/prettier": [
+          "error",
+          {
+            "endOfLine": "auto"
+          }
+        ],
         "@typescript-eslint/explicit-member-accessibility": "error",
         "@angular-eslint/component-selector": [
           "error",
@@ -53,7 +59,29 @@
       "extends": [
         "plugin:@angular-eslint/template/recommended"
       ],
-      "rules": {}
+      "rules": {
+        "prettier/prettier": [
+          "error",
+          {
+            "endOfLine": "auto"
+          }
+        ]
+      }
+    },
+    {
+      "files": [
+        "*.spec.ts"
+      ],
+      "rules": {
+        "@typescript-eslint/await-thenable": "off",
+        "@typescript-eslint/no-explicit-any": "off",
+        "@typescript-eslint/no-floating-promises": "off",
+        "@typescript-eslint/no-unsafe-argument": "off",
+        "@typescript-eslint/no-unsafe-assignment": "off",
+        "@typescript-eslint/no-unsafe-call": "off",
+        "@typescript-eslint/no-unsafe-member-access": "off",
+        "@typescript-eslint/no-unsafe-return": "off"
+      }
     }
   ]
 }

.prettierrc

@@ -5,6 +5,7 @@
   "singleQuote": true,
   "quoteProps": "as-needed",
   "trailingComma": "es5",
+  "endOfLine": "auto",
   "bracketSpacing": false,
   "arrowParens": "avoid",
   "jsxBracketSameLine": false,

.run/start.run.xml

@@ -1,12 +1,15 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="start" type="js.build_tools.npm" nameIsGenerated="true">
-    <package-json value="$PROJECT_DIR$/package.json"/>
+    <package-json value="$PROJECT_DIR$/package.json" />
-    <command value="run"/>
+    <command value="run" />
     <scripts>
-      <script value="start"/>
+      <script value="start" />
     </scripts>
-    <node-interpreter value="project"/>
+    <node-interpreter value="project" />
-    <envs/>
+    <envs />
-    <method v="2"/>
+    <EXTENSION ID="com.intellij.lang.javascript.buildTools.npm.rc.StartBrowserRunConfigurationExtension">
+      <browser name="98ca6316-2f89-46d9-a9e5-fa9e2b0625b3" start="true" with-js-debugger="true" url="http://localhost.4200" />
+    </EXTENSION>
+    <method v="2" />
   </configuration>
 </component>

README.md

@@ -1 +1,19 @@
 # wgenerator
+
+## Admin migration
+
+If `songUsage` needs to be rebuilt from all existing shows, log in with a user that has the `admin` role and run this in the browser console:
+
+```js
+await window.wgeneratorAdmin.rebuildSongUsage()
+```
+
+The migration:
+
+- resets `songUsage` for all users
+- scans all shows and all `shows/{id}/songs` entries
+- rebuilds the per-user counters based on show ownership
+
+It returns a summary object with processed user, show and show-song counts.
+
+This is intended as a manual one-off migration and is read-heavy by design.

angular.json

@@ -155,6 +155,30 @@
     },
     "@angular-eslint/schematics:library": {
       "setParserOptionsProject": true
+    },
+    "@schematics/angular:component": {
+      "type": "component"
+    },
+    "@schematics/angular:directive": {
+      "type": "directive"
+    },
+    "@schematics/angular:service": {
+      "type": "service"
+    },
+    "@schematics/angular:guard": {
+      "typeSeparator": "."
+    },
+    "@schematics/angular:interceptor": {
+      "typeSeparator": "."
+    },
+    "@schematics/angular:module": {
+      "typeSeparator": "."
+    },
+    "@schematics/angular:pipe": {
+      "typeSeparator": "."
+    },
+    "@schematics/angular:resolver": {
+      "typeSeparator": "."
     }
   }
 }

codex-session.json

@@ -0,0 +1,76 @@
+{
+  "updated_at": "2026-03-09",
+  "project": "wgenerator",
+  "summary": {
+    "css_theme": [
+      "LESS @-Variablen durch CSS-Custom-Properties ersetzt",
+      "natuerlichere Farbpalette auf Basis des Body-Gradients eingefuehrt",
+      "Material Icon Buttons auf die Primaerfarbe abgestimmt",
+      "mehrere harte Farben in normale App-Views auf Tokens umgestellt",
+      "Monitor-/Beamer-Ansicht bewusst kontrastreich belassen"
+    ],
+    "material_theme": [
+      "src/custom-theme.scss auf map-basierte Angular-Material-M2-Theme-Definition umgestellt",
+      "Warnung zu legacy define-light-theme-Signatur behoben"
+    ],
+    "transpose": [
+      "TransposeService auf Halbtonlogik umgebaut",
+      "unbekannte Akkorde rendern bewusst als X",
+      "dynamisches Rendern statt festem 100-Zeichen-Template",
+      "Tests fuer Enharmonik, B/H, X-Faelle und Key-Helper ergaenzt",
+      "key.helper Korrekturen: Gb-Mapping und D-Skala"
+    ],
+    "firebase_reads": [
+      "ConfigService und GlobalSettingsService auf Singleton-Streams umgestellt",
+      "read$ fuer shows, songs und guest wieder direkt ueber doc$ statt list$.find(...)",
+      "songUsage Login-Backfill entfernt",
+      "songUsage-Inkremente auf FieldValue.increment(...) umgestellt",
+      "Admin-Konsoleintrag window.wgeneratorAdmin.rebuildSongUsage() hinzugefuegt",
+      "showSongDataService.list$(showId) pro showId gecacht",
+      "monitor.component.ts entkoppelt, damit Show-Metadaten keine unnoetigen Song-Reads triggern"
+    ],
+    "shows_filter": [
+      "showType-Filter funktioniert wieder clientseitig",
+      "Zeitraumfilter fachlich auf heute minus n*30 Tage umgestellt",
+      "oeffentliche Shows werden fuer den Zeitraum serverseitig per Firestore-Query geladen",
+      "owner und showType filtern weiterhin clientseitig auf dem kleineren Resultset",
+      "Null-Fall im Filter-Template abgesichert"
+    ]
+  },
+  "important_files": [
+    "src/styles/styles.less",
+    "src/custom-theme.scss",
+    "src/app/modules/songs/services/transpose.service.ts",
+    "src/app/modules/songs/services/transpose.service.spec.ts",
+    "src/app/modules/songs/services/key.helper.ts",
+    "src/app/modules/songs/services/key.helper.spec.ts",
+    "src/app/services/config.service.ts",
+    "src/app/services/global-settings.service.ts",
+    "src/app/services/user/user.service.ts",
+    "src/main.ts",
+    "src/app/modules/shows/services/show-song-data.service.ts",
+    "src/app/modules/presentation/monitor/monitor.component.ts",
+    "src/app/modules/presentation/remote/remote.component.ts",
+    "src/app/modules/shows/services/show-data.service.ts",
+    "src/app/modules/shows/list/list.component.ts",
+    "src/app/modules/shows/list/filter/filter.component.ts",
+    "src/app/modules/shows/list/filter/filter.component.html",
+    "src/app/modules/songs/song/song.component.ts",
+    "src/app/modules/songs/song/song.component.html",
+    "README.md"
+  ],
+  "console_commands": {
+    "song_usage_rebuild": "await window.wgeneratorAdmin.rebuildSongUsage()"
+  },
+  "known_tradeoffs": [
+    "songUsage wird historisch nicht mehr automatisch beim Login rekonstruiert; dafuer ist die Admin-Migration gedacht",
+    "songUsage decrement kann bei inkonsistenten Aufrufpfaden theoretisch unter 0 laufen",
+    "owner- und showType-Filter fuer Shows laufen noch clientseitig",
+    "oeffentliche Show-Zeitraumquery kann Firestore-Indexe benoetigen"
+  },
+  "next_candidates": [
+    "remote.component.ts weiter entkoppeln, damit textRendering.parse(...) nicht bei jeder Show-Metadatenaenderung fuer alle Songs neu laeuft",
+    "users$ als Voll-Collection-Livestream spaeter auf Einzelreads bzw. gezieltere Nutzung pruefen",
+    "weitere Firestore-Read-Hotspots mit echten Metriken gegenpruefen"
+  ]
+}

package.json

@@ -11,60 +11,57 @@
   },
   "private": true,
   "dependencies": {
-    "@angular/animations": "^19.0.5",
+    "@angular/animations": "^21.2.2",
-    "@angular/cdk": "^19.0.4",
+    "@angular/cdk": "^21.2.1",
-    "@angular/common": "^19.0.5",
+    "@angular/common": "^21.2.2",
-    "@angular/compiler": "^19.0.5",
+    "@angular/compiler": "^21.2.2",
-    "@angular/core": "^19.0.5",
+    "@angular/core": "^21.2.2",
-    "@angular/fire": "^18.0.1",
+    "@angular/fire": "21.0.0-rc.0",
-    "@angular/forms": "^19.0.5",
+    "@angular/forms": "^21.2.2",
-    "@angular/material": "^19.0.4",
+    "@angular/material": "^21.2.1",
-    "@angular/platform-browser": "^19.0.5",
+    "@angular/platform-browser": "^21.2.2",
-    "@angular/platform-browser-dynamic": "^19.0.5",
+    "@angular/platform-browser-dynamic": "^21.2.2",
-    "@angular/router": "^19.0.5",
+    "@angular/router": "^21.2.2",
-    "@angular/service-worker": "^19.0.5",
+    "@angular/service-worker": "^21.2.2",
-    "@fortawesome/angular-fontawesome": "^0.14.1",
+    "@fortawesome/angular-fontawesome": "^4.0.0",
-    "@fortawesome/fontawesome-svg-core": "^6.5.1",
+    "@fortawesome/fontawesome-svg-core": "^7.2.0",
-    "@fortawesome/free-solid-svg-icons": "^6.5.1",
+    "@fortawesome/free-solid-svg-icons": "^7.2.0",
-    "docx": "^8.5.0",
+    "docx": "^9.6.0",
-    "firebase": "^10.8.0",
+    "firebase": "^12.10.0",
-    "lodash": "^4.17.21",
+    "ngx-mat-select-search": "^8.0.4",
-    "ngx-mat-select-search": "^7.0.5",
+    "qrcode": "^1.5.4",
-    "qrcode": "^1.5.3",
-    "rxfire": "^6.0.5",
     "rxjs": "~7.8.1",
-    "swiper": "^11.0.6",
+    "swiper": "^12.1.2",
-    "tslib": "^2.6.2",
+    "tslib": "^2.8.1",
     "zone.js": "~0.15.0"
   },
   "devDependencies": {
-    "@angular-devkit/architect": "0.1900.6",
+    "@angular-devkit/architect": "0.2102.1",
-    "@angular-devkit/build-angular": "^19.0.6",
+    "@angular-devkit/build-angular": "^21.2.1",
-    "@angular-eslint/builder": "19.0.2",
+    "@angular-eslint/builder": "21.3.0",
-    "@angular-eslint/eslint-plugin": "19.0.2",
+    "@angular-eslint/eslint-plugin": "21.3.0",
-    "@angular-eslint/eslint-plugin-template": "19.0.2",
+    "@angular-eslint/eslint-plugin-template": "21.3.0",
-    "@angular-eslint/schematics": "19.0.2",
+    "@angular-eslint/schematics": "21.3.0",
-    "@angular-eslint/template-parser": "19.0.2",
+    "@angular-eslint/template-parser": "21.3.0",
-    "@angular/cli": "^19.0.6",
+    "@angular/cli": "^21.2.1",
-    "@angular/compiler-cli": "^19.0.5",
+    "@angular/compiler-cli": "^21.2.2",
-    "@angular/language-service": "^19.0.5",
+    "@angular/language-service": "^21.2.2",
-    "@types/jasmine": "~5.1.4",
+    "@types/jasmine": "~6.0.0",
     "@types/jasminewd2": "~2.0.13",
-    "@types/lodash": "^4.14.202",
+    "@typescript-eslint/eslint-plugin": "^8.57.0",
-    "@typescript-eslint/eslint-plugin": "^7.2.0",
+    "@typescript-eslint/parser": "^8.57.0",
-    "@typescript-eslint/parser": "^7.2.0",
+    "eslint": "^9.39.4",
-    "eslint": "^8.57.0",
+    "eslint-config-prettier": "^10.1.8",
-    "eslint-config-prettier": "^9.1.0",
+    "eslint-plugin-prettier": "^5.5.5",
-    "eslint-plugin-prettier": "^5.1.3",
+    "firebase-tools": "^15.9.1",
-    "firebase-tools": "^13.3.1",
+    "jasmine-core": "~6.1.0",
-    "jasmine-core": "~5.1.2",
     "jasmine-spec-reporter": "~7.0.0",
-    "karma": "~6.4.2",
+    "karma": "~6.4.4",
     "karma-chrome-launcher": "~3.2.0",
     "karma-coverage-istanbul-reporter": "~3.0.3",
     "karma-jasmine": "~5.1.0",
-    "karma-jasmine-html-reporter": "^2.1.0",
+    "karma-jasmine-html-reporter": "^2.2.0",
-    "prettier": "^3.2.5",
+    "prettier": "^3.8.1",
-    "typescript": "~5.5.4"
+    "typescript": "~5.9.3"
   }
 }

src/app/app-routing.module.ts

@@ -1,7 +1,7 @@
 import {NgModule} from '@angular/core';
 import {PreloadAllModules, RouterModule, Routes} from '@angular/router';
-import {AngularFireAuthGuard, redirectUnauthorizedTo} from '@angular/fire/compat/auth-guard';
 import {RoleGuard} from './widget-modules/guards/role.guard';
+import {AuthGuard} from './widget-modules/guards/auth.guard';
 
 const routes: Routes = [
   {
@@ -12,27 +12,24 @@ const routes: Routes = [
   {
     path: 'songs',
     loadChildren: () => import('./modules/songs/songs.module').then(m => m.SongsModule),
-    canActivate: [AngularFireAuthGuard, RoleGuard],
+    canActivate: [AuthGuard, RoleGuard],
     data: {
-      authGuardPipe: () => redirectUnauthorizedTo(['user', 'login']),
       requiredRoles: ['user'],
     },
   },
   {
     path: 'shows',
     loadChildren: () => import('./modules/shows/shows.module').then(m => m.ShowsModule),
-    canActivate: [AngularFireAuthGuard, RoleGuard],
+    canActivate: [AuthGuard, RoleGuard],
     data: {
-      authGuardPipe: () => redirectUnauthorizedTo(['user', 'login']),
       requiredRoles: ['leader', 'member'],
     },
   },
   {
     path: 'presentation',
     loadChildren: () => import('./modules/presentation/presentation.module').then(m => m.PresentationModule),
-    canActivate: [AngularFireAuthGuard, RoleGuard],
+    canActivate: [AuthGuard, RoleGuard],
     data: {
-      authGuardPipe: () => redirectUnauthorizedTo(['user', 'login']),
       requiredRoles: ['presenter'],
     },
   },

src/app/app.component.less

@@ -1,3 +1,3 @@
 h1 {
-  color: red;
+  color: var(--text);
 }

src/app/app.component.ts

@@ -1,6 +1,5 @@
 import {ChangeDetectionStrategy, Component, OnInit} from '@angular/core';
 import {fader} from './animations';
-import {ScrollService} from './services/scroll.service';
 import {register} from 'swiper/element/bundle';
 import {RouterOutlet} from '@angular/router';
 import {NavigationComponent} from './widget-modules/components/application-frame/navigation/navigation.component';
@@ -14,7 +13,7 @@ import {NavigationComponent} from './widget-modules/components/application-frame
   imports: [RouterOutlet, NavigationComponent],
 })
 export class AppComponent implements OnInit {
-  public constructor(private scrollService: ScrollService) {
+  public constructor() {
     register();
   }
 
@@ -22,8 +21,4 @@ export class AppComponent implements OnInit {
     setTimeout(() => document.querySelector('#load-bg')?.classList.add('hidden'), 1000);
     setTimeout(() => document.querySelector('#load-bg')?.remove(), 5000);
   }
-
-  public onScoll($event: {srcElement: {scrollTop: number}}): void {
-    this.scrollService.saveScrollPosition($event.srcElement.scrollTop);
-  }
 }

src/app/modules/brand/brand.component.html

@@ -1,4 +1,4 @@
 <div class="brand">
   <app-logo></app-logo>
-  <div class="copyright">© 2019 - 2024 - Benjamin Ifland</div>
+  <div class="copyright">© 2019 - 2026 - Benjamin Ifland</div>
 </div>

src/app/modules/brand/new-user/new-user.component.html

@@ -1,6 +1,7 @@
 <div class="frame">
   <app-brand class="brand"></app-brand>
-  <div *ngIf="user$ | async as user" class="text">
+  @if (user$ | async; as user) {
+    <div class="text">
       <div class="welcome">WILLKOMMEN</div>
       <div class="name">{{ user.name }}</div>
       <div class="roles">
@@ -8,4 +9,5 @@
         Administrator!
       </div>
     </div>
+  }
 </div>

src/app/modules/brand/new-user/new-user.component.less

@@ -1,4 +1,6 @@
-@animation-duration: 20s;
+:host {
+  --animation-duration: 20s;
+}
 
 .frame {
   width: 512px;
@@ -11,10 +13,10 @@
 .brand {
   position: absolute;
   left: 0;
-  animation: @animation-duration brand ease-in-out forwards;
+  animation: var(--animation-duration) brand ease-in-out forwards;
   opacity: 0;
   @media screen and (max-width: 860px) {
-    animation: @animation-duration brand-mobile ease-in-out forwards;
+    animation: var(--animation-duration) brand-mobile ease-in-out forwards;
   }
 }
 
@@ -34,7 +36,7 @@
     @media screen and (max-width: 860px) {
       font-size: 40px;
     }
-    animation: @animation-duration welcome ease-in-out forwards;
+    animation: var(--animation-duration) welcome ease-in-out forwards;
   }
 
   .name {
@@ -43,14 +45,14 @@
     @media screen and (max-width: 860px) {
       font-size: 30px;
     }
-    animation: @animation-duration name ease-in-out forwards;
+    animation: var(--animation-duration) name ease-in-out forwards;
   }
 
   .roles {
     opacity: 0;
     font-size: 20px;
     margin-top: 40px;
-    animation: @animation-duration roles ease-in-out forwards;
+    animation: var(--animation-duration) roles ease-in-out forwards;
   }
 }
 

src/app/modules/brand/new-user/new-user.component.ts

@@ -1,20 +1,24 @@
-import {Component} from '@angular/core';
+import {Component, inject} from '@angular/core';
 import {UserService} from '../../../services/user/user.service';
 import {Observable} from 'rxjs';
 import {User} from '../../../services/user/user';
 import {BrandComponent} from '../brand.component';
-import {AsyncPipe, NgIf} from '@angular/common';
+import {AsyncPipe} from '@angular/common';
 
 @Component({
   selector: 'app-new-user',
   templateUrl: './new-user.component.html',
   styleUrls: ['./new-user.component.less'],
-  imports: [BrandComponent, NgIf, AsyncPipe],
+  imports: [BrandComponent, AsyncPipe],
 })
 export class NewUserComponent {
+  private userService = inject(UserService);
+
   public user$: Observable<User | null> | null = null;
 
-  public constructor(private userService: UserService) {
+  public constructor() {
+    const userService = this.userService;
+
     this.user$ = userService.user$;
   }
 }

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

@@ -0,0 +1,75 @@
+import {TestBed} from '@angular/core/testing';
+import {of} from 'rxjs';
+import {DbService} from 'src/app/services/db.service';
+import {GuestShowDataService} from './guest-show-data.service';
+
+describe('GuestShowDataService', () => {
+  let service: GuestShowDataService;
+  let docUpdateSpy: jasmine.Spy<() => Promise<void>>;
+  let docDeleteSpy: jasmine.Spy<() => Promise<void>>;
+  let docSpy: jasmine.Spy;
+  let colAddSpy: jasmine.Spy<() => Promise<{id: string}>>;
+  let colSpy: jasmine.Spy;
+  let dbServiceSpy: jasmine.SpyObj<DbService>;
+
+  beforeEach(async () => {
+    docUpdateSpy = jasmine.createSpy('update').and.resolveTo();
+    docDeleteSpy = jasmine.createSpy('delete').and.resolveTo();
+    docSpy = jasmine.createSpy('doc').and.returnValue({
+      update: docUpdateSpy,
+      delete: docDeleteSpy,
+    });
+    colAddSpy = jasmine.createSpy('add').and.resolveTo({id: 'guest-2'});
+    colSpy = jasmine.createSpy('col').and.returnValue({add: colAddSpy});
+    dbServiceSpy = jasmine.createSpyObj<DbService>('DbService', ['col$', 'doc$', 'doc', 'col']);
+    dbServiceSpy.col$.and.returnValue(of([{id: 'guest-1'}]) as never);
+    dbServiceSpy.doc$.and.returnValue(of({id: 'guest-1'}) as never);
+    dbServiceSpy.doc.and.callFake(docSpy);
+    dbServiceSpy.col.and.callFake(colSpy);
+
+    await TestBed.configureTestingModule({
+      providers: [{provide: DbService, useValue: dbServiceSpy}],
+    });
+
+    service = TestBed.inject(GuestShowDataService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+
+  it('should read the guest collection for list$', () => {
+    service.list$.subscribe();
+
+    expect(dbServiceSpy.col$).toHaveBeenCalledWith('guest');
+  });
+
+  it('should read a single guest show by id', () => {
+    service.read$('guest-7').subscribe();
+
+    expect(dbServiceSpy.doc$).toHaveBeenCalledWith('guest/guest-7');
+  });
+
+  it('should update a guest show document', async () => {
+    await service.update$('guest-7', {published: true} as never);
+
+    expect(docSpy).toHaveBeenCalledWith('guest/guest-7');
+    const [updatePayload] = docUpdateSpy.calls.mostRecent().args as unknown as [Record<string, unknown>];
+    expect(updatePayload).toEqual({published: true});
+  });
+
+  it('should add a guest show and return the created id', async () => {
+    await expectAsync(service.add({published: false} as never)).toBeResolvedTo('guest-2');
+
+    expect(colSpy).toHaveBeenCalledWith('guest');
+    const [addPayload] = colAddSpy.calls.mostRecent().args as unknown as [Record<string, unknown>];
+    expect(addPayload).toEqual({published: false});
+  });
+
+  it('should delete a guest show document', async () => {
+    await service.delete('guest-7');
+
+    expect(docSpy).toHaveBeenCalledWith('guest/guest-7');
+    expect(docDeleteSpy).toHaveBeenCalled();
+  });
+});

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

@@ -1,6 +1,6 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
-import {BehaviorSubject, Observable} from 'rxjs';
+import {Observable} from 'rxjs';
-import {map} from 'rxjs/operators';
+import {shareReplay} from 'rxjs/operators';
 import {DbService} from 'src/app/services/db.service';
 import {GuestShow} from './guest-show';
 
@@ -8,14 +8,17 @@ import {GuestShow} from './guest-show';
   providedIn: 'root',
 })
 export class GuestShowDataService {
-  public list$: BehaviorSubject<GuestShow[]> = new BehaviorSubject<GuestShow[]>([]);
+  private dbService = inject(DbService);
+
   private collection = 'guest';
+  public list$: Observable<GuestShow[]> = this.dbService.col$<GuestShow>(this.collection).pipe(
+    shareReplay({
+      bufferSize: 1,
+      refCount: true,
+    })
+  );
 
-  public constructor(private dbService: DbService) {
+  public read$: (id: string) => Observable<GuestShow | null> = (id: string): Observable<GuestShow | null> => this.dbService.doc$(`${this.collection}/${id}`);
-    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;

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

@@ -0,0 +1,64 @@
+import {TestBed} from '@angular/core/testing';
+import {GuestShowDataService} from './guest-show-data.service';
+import {GuestShowService} from './guest-show.service';
+import {ShowService} from '../shows/services/show.service';
+import {Show} from '../shows/services/show';
+import {Song} from '../songs/services/song';
+
+describe('GuestShowService', () => {
+  let service: GuestShowService;
+  let guestShowDataServiceSpy: jasmine.SpyObj<GuestShowDataService>;
+  let showServiceSpy: jasmine.SpyObj<ShowService>;
+
+  beforeEach(async () => {
+    guestShowDataServiceSpy = jasmine.createSpyObj<GuestShowDataService>('GuestShowDataService', ['add', 'update$']);
+    showServiceSpy = jasmine.createSpyObj<ShowService>('ShowService', ['update$']);
+    guestShowDataServiceSpy.add.and.resolveTo('share-1');
+    guestShowDataServiceSpy.update$.and.resolveTo();
+    showServiceSpy.update$.and.resolveTo();
+
+    await TestBed.configureTestingModule({
+      providers: [
+        {provide: GuestShowDataService, useValue: guestShowDataServiceSpy},
+        {provide: ShowService, useValue: showServiceSpy},
+      ],
+    });
+
+    service = TestBed.inject(GuestShowService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+
+  it('should create a new guest share, persist the generated shareId on the show and return the share url', async () => {
+    const show = {id: 'show-1', showType: 'service-worship', date: new Date(), shareId: ''} as unknown as Show;
+    const songs = [{id: 'song-1'}] as unknown as Song[];
+    const expectedUrl = window.location.protocol + '//' + window.location.host + '/guest/share-1';
+
+    await expectAsync(service.share(show, songs)).toBeResolvedTo(expectedUrl);
+
+    expect(guestShowDataServiceSpy.add).toHaveBeenCalledWith({
+      showType: 'service-worship',
+      date: show.date,
+      songs,
+    });
+    expect(showServiceSpy.update$).toHaveBeenCalledWith('show-1', {shareId: 'share-1'});
+  });
+
+  it('should update an existing share and reuse its id in the returned url', async () => {
+    const show = {id: 'show-1', showType: 'service-worship', date: new Date(), shareId: 'share-9'} as unknown as Show;
+    const songs = [{id: 'song-1'}] as unknown as Song[];
+    const expectedUrl = window.location.protocol + '//' + window.location.host + '/guest/share-9';
+
+    await expectAsync(service.share(show, songs)).toBeResolvedTo(expectedUrl);
+
+    expect(guestShowDataServiceSpy.update$).toHaveBeenCalledWith('share-9', {
+      showType: 'service-worship',
+      date: show.date,
+      songs,
+    });
+    expect(guestShowDataServiceSpy.add).not.toHaveBeenCalled();
+    expect(showServiceSpy.update$).not.toHaveBeenCalled();
+  });
+});

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

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {Show} from '../shows/services/show';
 import {Song} from '../songs/services/song';
 import {GuestShowDataService} from './guest-show-data.service';
@@ -8,10 +8,8 @@ import {ShowService} from '../shows/services/show.service';
   providedIn: 'root',
 })
 export class GuestShowService {
-  public constructor(
+  private showService = inject(ShowService);
-    private showService: ShowService,
+  private guestShowDataService = inject(GuestShowDataService);
-    private guestShowDataService: GuestShowDataService
-  ) {}
 
   public async share(show: Show, songs: Song[]): Promise<string> {
     const data = {
@@ -19,14 +17,15 @@ export class GuestShowService {
       date: show.date,
       songs: songs,
     };
+    let shareId = show.shareId;
 
     if (!show.shareId) {
-      const shareId = await this.guestShowDataService.add(data);
+      shareId = await this.guestShowDataService.add(data);
       await this.showService.update$(show.id, {shareId});
     } else {
       await this.guestShowDataService.update$(show.shareId, data);
     }
 
-    return window.location.protocol + '//' + window.location.host + '/guest/' + show.shareId;
+    return window.location.protocol + '//' + window.location.host + '/guest/' + shareId;
   }
 }

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

@@ -1,6 +1,5 @@
-import firebase from 'firebase/compat/app';
 import {Song} from '../songs/services/song';
-import Timestamp = firebase.firestore.Timestamp;
+import {Timestamp} from '@angular/fire/firestore';
 
 export interface GuestShow {
   id: string;

src/app/modules/guest/guest.component.html

@@ -1,25 +1,28 @@
-<div *ngIf="show$|async as show" class="page">
+@if (show$|async; as show) {
+  <div class="page">
     <div class="title">
       <div class="left">{{ show.showType|showType }}</div>
       <div class="right">{{ show.date.toDate() | date: 'dd.MM.yyyy' }}</div>
     </div>
-
     <div class="view">
       <swiper-container scrollbar="true">
-      <swiper-slide *ngFor="let song of show.songs; let i = index; trackBy: trackBy"
+        @for (song of show.songs; track trackBy(i, song); let i = $index) {
+          <swiper-slide
             class="song-swipe">
             <div class="song-title">{{ song.title }}</div>
-
             <div class="legal">
-          <p *ngIf="song.artist">{{ song.artist }}</p>
+              @if (song.artist) {
+                <p>{{ song.artist }}</p>
+              }
             </div>
-
             <app-song-text
               [text]="song.text"
             ></app-song-text>
           </swiper-slide>
+        }
       </swiper-container>
     </div>
-</div>
+  </div>
+}
 
 

src/app/modules/guest/guest.component.less

@@ -1,5 +1,5 @@
 .page {
-  background: #0009;
+  background: var(--overlay);
   position: fixed;
   top: 0;
   bottom: 0;
@@ -7,15 +7,15 @@
   right: 0;
   backdrop-filter: blur(8px);
 
-  --swiper-scrollbar-bg-color: #fff3;
+  --swiper-scrollbar-bg-color: rgba(247, 251, 255, 0.2);
-  --swiper-scrollbar-drag-bg-color: #fff9;
+  --swiper-scrollbar-drag-bg-color: rgba(247, 251, 255, 0.6);
   --swiper-scrollbar-sides-offset: 20px;
   --swiper-scrollbar-top: 100px;
   --swiper-scrollbar-bottom: auto;
 }
 
 .title {
-  color: white;
+  color: var(--text-inverse);
   padding: 70px 20px 0;
   display: flex;
   justify-content: space-between;
@@ -23,7 +23,7 @@
 
   .left {
     font-size: 1.8em;
-    color: #fff;
+    color: var(--text-inverse);
   }
 }
 
@@ -35,7 +35,7 @@
 .legal {
   padding: 0 20px;
   font-size: 0.6em;
-  color: #fff9;
+  color: rgba(247, 251, 255, 0.72);
 }
 
 .view {
@@ -44,7 +44,7 @@
   bottom: 0;
   left: 0;
   right: 0;
-  color: white;
+  color: var(--text-inverse);
 }
 
 app-song-text {

src/app/modules/guest/guest.component.ts

@@ -1,10 +1,10 @@
-import {Component, CUSTOM_ELEMENTS_SCHEMA} from '@angular/core';
+import {Component, CUSTOM_ELEMENTS_SCHEMA, inject} from '@angular/core';
 import {GuestShowDataService} from './guest-show-data.service';
 import {ActivatedRoute} from '@angular/router';
 import {map, switchMap} from 'rxjs/operators';
 import {Song} from '../songs/services/song';
 import {ConfigService} from '../../services/config.service';
-import {AsyncPipe, DatePipe, NgFor, NgIf} from '@angular/common';
+import {AsyncPipe, DatePipe} from '@angular/common';
 import {SongTextComponent} from '../../widget-modules/components/song-text/song-text.component';
 import {ShowTypePipe} from '../../widget-modules/pipes/show-type-translater/show-type.pipe';
 
@@ -13,20 +13,18 @@ import {ShowTypePipe} from '../../widget-modules/pipes/show-type-translater/show
   templateUrl: './guest.component.html',
   styleUrls: ['./guest.component.less'],
   schemas: [CUSTOM_ELEMENTS_SCHEMA],
-  imports: [NgIf, NgFor, SongTextComponent, AsyncPipe, DatePipe, ShowTypePipe],
+  imports: [SongTextComponent, AsyncPipe, DatePipe, ShowTypePipe],
 })
 export class GuestComponent {
+  private currentRoute = inject(ActivatedRoute);
+  private service = inject(GuestShowDataService);
+  private configService = inject(ConfigService);
+
   public show$ = this.currentRoute.params.pipe(
     map(param => param.id as string),
     switchMap(id => this.service.read$(id))
   );
   public config$ = this.configService.get$();
 
-  public constructor(
-    private currentRoute: ActivatedRoute,
-    private service: GuestShowDataService,
-    private configService: ConfigService
-  ) {}
-
   public trackBy = (index: number, show: Song) => show.id;
 }

src/app/modules/presentation/monitor/legal/legal.component.html

@@ -1,14 +1,27 @@
-<ng-container *ngIf="song">
+@if (song) {
-  <p *ngIf="song.artist">{{ song.artist }}</p>
+  @if (song.artist) {
-  <p *ngIf="song.label">{{ song.label }}</p>
+    <p>{{ song.artist }}</p>
-  <p *ngIf="song.termsOfUse" class="terms-of-use">{{ song.termsOfUse }}</p>
+  }
-  <p *ngIf="song.origin">{{ song.origin }}</p>
+  @if (song.label) {
-
+    <p>{{ song.label }}</p>
-  <div *ngIf="song.legalOwnerId">
+  }
-    <p *ngIf="song.legalOwner === 'CCLI' && config">
+  @if (song.termsOfUse) {
+    <p class="terms-of-use">{{ song.termsOfUse }}</p>
+  }
+  @if (song.origin) {
+    <p>{{ song.origin }}</p>
+  }
+  @if (song.legalOwnerId) {
+    <div>
+      @if (song.legalOwner === 'CCLI' && config) {
+        <p>
           CCLI-Liednummer {{ song.legalOwnerId }}, CCLI-Lizenznummer
           {{ config.ccliLicenseId }}
         </p>
-    <p *ngIf="song.legalOwner !== 'CCLI'">Liednummer {{ song.legalOwnerId }}</p>
+      }
+      @if (song.legalOwner !== 'CCLI') {
+        <p>Liednummer {{ song.legalOwnerId }}</p>
+      }
     </div>
-</ng-container>
+  }
+}

src/app/modules/presentation/monitor/legal/legal.component.ts

@@ -1,13 +1,12 @@
 import {Component, Input} from '@angular/core';
 import {Song} from '../../../songs/services/song';
 import {Config} from '../../../../services/config';
-import {NgIf} from '@angular/common';
 
 @Component({
   selector: 'app-legal',
   templateUrl: './legal.component.html',
   styleUrls: ['./legal.component.less'],
-  imports: [NgIf],
+  imports: [],
 })
 export class LegalComponent {
   @Input() public song: Song | null = null;

src/app/modules/presentation/monitor/monitor.component.html

@@ -1,13 +1,11 @@
 <div class="fullscreen background"></div>
-<div *ngIf="song && showType" [style.font-size.px]="zoom" class="fullscreen background">
+@if (showType) {
-
+  <div [style.font-size.px]="zoom" class="fullscreen background">
     <div [class.visible]="presentationBackground==='blue'" class="bg-blue fullscreen bg-image"></div>
     <div [class.visible]="presentationBackground==='green'" class="bg-green fullscreen bg-image"></div>
     <div [class.visible]="presentationBackground==='leder'" class="bg-leder fullscreen bg-image"></div>
     <div [class.visible]="presentationBackground==='praise'" class="bg-praise fullscreen bg-image"></div>
     <div [class.visible]="presentationBackground==='bible'" class="bg-bible fullscreen bg-image"></div>
-
-
     <div
       [@songSwitch]="songId"
       [class.blur]="songId === 'title' || songId === 'dynamicText'"
@@ -17,19 +15,20 @@
       >
       <app-logo></app-logo>
     </div>
-
+    @if (songId === 'title') {
-  <div *ngIf="songId === 'title'" @songSwitch class="start fullscreen">
+      <div @songSwitch class="start fullscreen">
         <div>{{ showType | showType }}</div>
         <div class="date">{{ date | date: "dd.MM.yyyy" }}</div>
       </div>
-
+    }
-  <div *ngIf="songId === 'dynamicText'" @songSwitch class="start fullscreen dynamic-text">
+    @if (songId === 'dynamicText') {
+      <div @songSwitch class="start fullscreen dynamic-text">
         <div>{{ presentationDynamicCaption }}</div>
         <div class="date">{{ presentationDynamicText }}</div>
       </div>
-
+    }
+    @if (song && songId !== 'title' && songId !== 'empty' && songId !== 'dynamicText') {
       <app-song-text
-    *ngIf="songId !== 'title' && songId !== 'empty'"
         [@songSwitch]="songId"
         [fullscreen]="true"
         [header]="song.title"
@@ -39,10 +38,13 @@
         [text]="song.text"
         chordMode="hide"
       ></app-song-text>
+    }
+    @if (song && songId !== 'title' && songId !== 'empty' && songId !== 'dynamicText') {
       <app-legal
-    *ngIf="songId !== 'title' && songId !== 'empty' && songId !== 'dynamicText'"
         [@songSwitch]="songId"
         [config]="config$ | async"
         [song]="song"
       ></app-legal>
-</div>
+    }
+  </div>
+}

src/app/modules/presentation/monitor/monitor.component.ts

@@ -1,18 +1,17 @@
-import {ChangeDetectorRef, Component, OnInit} from '@angular/core';
+import {ChangeDetectorRef, Component, OnDestroy, OnInit, inject} from '@angular/core';
-import {debounceTime, distinctUntilChanged, filter, map, switchMap, tap} from 'rxjs/operators';
+import {distinctUntilChanged, filter, map, shareReplay, switchMap, takeUntil, tap} from 'rxjs/operators';
 import {ShowService} from '../../shows/services/show.service';
-import {SongService} from '../../songs/services/song.service';
 import {Song} from '../../songs/services/song';
 import {GlobalSettingsService} from '../../../services/global-settings.service';
 import {Config} from '../../../services/config';
-import {Observable} from 'rxjs';
+import {Observable, Subject} from 'rxjs';
 import {ConfigService} from '../../../services/config.service';
 import {songSwitch} from '../../../widget-modules/components/song-text/animation';
-import {TextRenderingService} from '../../songs/services/text-rendering.service';
 import {PresentationBackground, Show} from '../../shows/services/show';
+import {ShowSong} from '../../shows/services/show-song';
 import {ShowSongService} from '../../shows/services/show-song.service';
 import {openFullscreen} from '../../../services/fullscreen';
-import {AsyncPipe, DatePipe, NgIf} from '@angular/common';
+import {AsyncPipe, DatePipe} from '@angular/common';
 import {LogoComponent} from './logo/logo.component';
 import {SongTextComponent} from '../../../widget-modules/components/song-text/song-text.component';
 import {LegalComponent} from './legal/legal.component';
@@ -23,9 +22,15 @@ import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/s
   templateUrl: './monitor.component.html',
   styleUrls: ['./monitor.component.less'],
   animations: [songSwitch],
-  imports: [NgIf, LogoComponent, SongTextComponent, LegalComponent, AsyncPipe, DatePipe, ShowTypePipe],
+  imports: [LogoComponent, SongTextComponent, LegalComponent, AsyncPipe, DatePipe, ShowTypePipe],
 })
-export class MonitorComponent implements OnInit {
+export class MonitorComponent implements OnInit, OnDestroy {
+  private showService = inject(ShowService);
+  private showSongService = inject(ShowSongService);
+  private globalSettingsService = inject(GlobalSettingsService);
+  private configService = inject(ConfigService);
+  private cRef = inject(ChangeDetectorRef);
+
   public song: Song | null = null;
   public zoom = 10;
   public currentShowId: string | null = null;
@@ -37,55 +42,78 @@ export class MonitorComponent implements OnInit {
   public date: Date | null = null;
   public config$: Observable<Config | null>;
   public presentationBackground: PresentationBackground = 'none';
+  private destroy$ = new Subject<void>();
+
+  public constructor() {
+    const configService = this.configService;
 
-  public constructor(
-    private showService: ShowService,
-    private showSongService: ShowSongService,
-    private songService: SongService,
-    private textRenderingService: TextRenderingService,
-    private globalSettingsService: GlobalSettingsService,
-    private configService: ConfigService,
-    private cRef: ChangeDetectorRef
-  ) {
     this.config$ = configService.get$();
   }
 
   public ngOnInit(): void {
     openFullscreen();
-    this.globalSettingsService.get$
+    const currentShowId$ = this.globalSettingsService.get$.pipe(
-      .pipe(
+      filter((settings): settings is NonNullable<typeof settings> => !!settings),
-        debounceTime(100),
+      map(settings => settings.currentShow),
-        filter(_ => !!_),
+      filter((showId): showId is string => !!showId),
-        map(_ => _),
-        map(_ => _.currentShow),
       distinctUntilChanged(),
-        tap(_ => (this.currentShowId = _))
+      tap(_ => (this.currentShowId = _)),
-      )
+      takeUntil(this.destroy$)
+    );
+
+    const show$ = currentShowId$.pipe(
+      switchMap(showId => this.showService.read$(showId)),
+      filter((show): show is Show => !!show),
+      shareReplay({
+        bufferSize: 1,
+        refCount: true,
+      }),
+      takeUntil(this.destroy$)
+    );
+
+    show$
       .pipe(
-        switchMap(_ => this.showService.read$(_)),
+        tap(show => {
-        filter(_ => !!_),
+          this.showType = show.showType;
-        map(_ => _),
+          this.date = show.date.toDate();
-        tap<Show>(_ => {
+          this.index = show.presentationSection;
-          this.showType = _.showType;
+          this.presentationBackground = show.presentationBackground;
-          this.date = _.date.toDate();
+          this.presentationDynamicCaption = show.presentationDynamicCaption;
-          this.index = _.presentationSection;
+          this.presentationDynamicText = show.presentationDynamicText;
-          this.presentationBackground = _.presentationBackground;
+          this.zoom = show.presentationZoom ?? 30;
-          this.presentationDynamicCaption = _.presentationDynamicCaption;
+        }),
-          this.presentationDynamicText = _.presentationDynamicText;
+        takeUntil(this.destroy$)
-          this.zoom = _.presentationZoom ?? 30;
+      )
-          if (this.songId !== _.presentationSongId) this.songId = 'empty';
+      .subscribe(() => this.cRef.markForCheck());
+
+    show$
+      .pipe(
+        map(show => ({showId: show.id, presentationSongId: show.presentationSongId})),
+        distinctUntilChanged((a, b) => a.showId === b.showId && a.presentationSongId === b.presentationSongId),
+        tap(({presentationSongId}) => {
+          if (presentationSongId === 'title' || presentationSongId === 'dynamicText' || !presentationSongId) {
+            this.song = null;
+          }
+          if (this.songId !== presentationSongId) {
+            this.songId = 'empty';
+          }
           setTimeout(() => {
-            this.songId = _.presentationSongId;
+            this.songId = presentationSongId;
             this.cRef.markForCheck();
           }, 600);
         }),
-        switchMap((_: Show) => this.showSongService.read$(_.id, _.presentationSongId)),
+        switchMap(({showId, presentationSongId}) => this.showSongService.read$(showId, presentationSongId)),
-        filter(_ => !!_),
+        filter((song): song is ShowSong => !!song),
-        map(_ => _ as Song)
+        takeUntil(this.destroy$)
       )
-      .subscribe(_ => {
+      .subscribe(song => {
-        this.song = _;
+        this.song = song;
         this.cRef.markForCheck();
       });
   }
+
+  public ngOnDestroy(): void {
+    this.destroy$.next();
+    this.destroy$.complete();
+  }
 }

src/app/modules/presentation/remote/remote.component.html

@@ -1,10 +1,11 @@
-<div *ngIf="show" @fade>
+@if (show) {
+  <div @fade>
     <app-card [closeIcon]="faIcon" [heading]="show.showType | showType"
       [subheading]="show.date.toDate() | date:'dd.MM.yyyy'" closeLink="/presentation/select">
-
+      @if (!progress) {
-    <ng-container *ngIf="!progress">
         <div class="song">
-        <div *ngIf="show" class="song-parts">
+          @if (show) {
+            <div class="song-parts">
               <div
                 (click)="onSectionClick('title', -1, show.id)"
                 [class.active]="show.presentationSongId === 'title'"
@@ -20,10 +21,12 @@
                 <div class="head">Leer</div>
               </div>
             </div>
+          }
         </div>
-
+        @for (song of presentationSongs; track trackBy($index, song)) {
-      <div *ngFor="let song of presentationSongs; trackBy: trackBy" class="song">
+          <div class="song">
-        <div *ngIf="show"
+            @if (show) {
+              <div
                 [class.active]="show.presentationSongId === song.id"
                 class="title song-part"
                 >
@@ -31,10 +34,12 @@
                   {{ song.title }}
                 </div>
               </div>
-        <div *ngIf="show" class="song-parts">
+            }
+            @if (show) {
+              <div class="song-parts">
+                @for (section of song.sections; track section; let i = $index) {
                   <div
                     (click)="onSectionClick(song.id, i, show.id)"
-            *ngFor="let section of song.sections; index as i"
             [class.active]="
               show.presentationSongId === song.id &&
               show.presentationSection === i
@@ -46,11 +51,14 @@
                     </div>
                     <div class="fragment">{{ getFirstLine(section) }}</div>
                   </div>
+                }
               </div>
+            }
           </div>
-
+        }
         <div class="song">
-        <div *ngIf="show"
+          @if (show) {
+            <div
               [class.active]="show.presentationSongId === 'dynamicText'"
               class="title song-part"
               >
@@ -58,7 +66,7 @@
                 Freier Text
               </div>
             </div>
-
+          }
           <mat-form-field appearance="outline">
             <mat-label>Überschrift</mat-label>
             <input (ngModelChange)="onDynamicCaption($event, show.id)" [ngModel]="show.presentationDynamicCaption"
@@ -66,24 +74,19 @@
               matInput
               type="text">
           </mat-form-field>
-
           <mat-form-field appearance="outline">
             <mat-label>Text</mat-label>
             <textarea (ngModelChange)="onDynamicText($event, show.id)" [ngModel]="show.presentationDynamicText"
               autocomplete="off" id="dynamic-text"
             matInput></textarea>
           </mat-form-field>
-
         </div>
-
+        @if (show) {
-      <div *ngIf="show" class="div-bottom">
+          <div class="div-bottom">
-
             <button class="btn-start-presentation" mat-button routerLink="/presentation/monitor">
               <fa-icon [icon]="faDesktop"></fa-icon>
               Präsentation starten
             </button>
-
-
             <mat-form-field appearance="outline">
               <mat-label>Hintergrund</mat-label>
               <mat-select
@@ -97,7 +100,6 @@
                 <mat-option value="bible">Bibel</mat-option>
               </mat-select>
             </mat-form-field>
-
             <mat-slider
               #slider
               [max]="100"
@@ -110,17 +112,17 @@
               [ngModel]="show.presentationZoom"
               matSliderThumb>
             </mat-slider>
-
-
           </div>
-
+        }
+        @if (show) {
           <app-add-song
-        *ngIf="show"
             [addedLive]="true"
             [showSongs]="showSongs"
             [show]="show"
             [songs]="songs$|async"
           ></app-add-song>
-    </ng-container>
+        }
+      }
     </app-card>
-</div>
+  </div>
+}

src/app/modules/presentation/remote/remote.component.less

@@ -1,12 +1,13 @@
 @import "../../../../styles/shadow";
 
 .song {
-  background: #fff;
+  background: var(--surface-strong);
   width: 100%;
   padding: 10px;
   border-radius: 8px;
   margin-bottom: 10px;
   box-sizing: border-box;
+  color: var(--text);
 
   @media screen and (max-width: 860px) {
     width: 100vw;
@@ -14,7 +15,7 @@
     border-radius: 0;
     box-sizing: border-box;
     margin: -11px -20px 10px;
-    border: 1px solid #ddd;
+    border: 1px solid var(--surface-border);
   }
 }
 
@@ -39,31 +40,31 @@
 }
 
 .song-part {
-  background: #fff;
+  background: var(--surface-strong);
   border-radius: 8px;
   overflow: hidden;
-  transition: 300ms all ease-in-out;
+  transition: var(--transition);
   cursor: pointer;
-  outline: 0.5px solid #eee;
+  outline: 1px solid var(--surface-muted);
 
   &:hover {
-    outline: 0.5px solid var(--color-primary-light);
+    outline: 1px solid var(--primary-hover);
   }
 
   &.active {
-    outline: 0.5px solid var(--color-primary);
+    outline: 1px solid var(--primary-color);
 
     .head {
-      background-color: var(--color-primary);
+      background-color: var(--primary-color);
-      color: white;
+      color: var(--text-inverse);
     }
 
   }
 }
 
 .head {
-  transition: 300ms all ease-in-out;
+  transition: var(--transition);
-  background: #eee;
+  background: var(--surface-muted);
   padding: 10px;
   font-weight: bold;
 }
@@ -100,9 +101,9 @@
 a {
   font-size: 30px;
   padding: 10px;
-  transition: all 300ms ease-in-out;
+  transition: var(--transition);
 
   &:hover {
-    color: #4286f4;
+    color: var(--link-color);
   }
 }

src/app/modules/presentation/remote/remote.component.ts

@@ -1,4 +1,4 @@
-import {ChangeDetectionStrategy, ChangeDetectorRef, Component} from '@angular/core';
+import {ChangeDetectionStrategy, ChangeDetectorRef, Component, OnDestroy, inject} from '@angular/core';
 import {combineLatest, Subject} from 'rxjs';
 import {PresentationBackground, Show} from '../../shows/services/show';
 import {ShowSongService} from '../../shows/services/show-song.service';
@@ -7,12 +7,12 @@ import {faDesktop, faFolderOpen} from '@fortawesome/free-solid-svg-icons';
 import {ShowService} from '../../shows/services/show.service';
 import {ShowSong} from '../../shows/services/show-song';
 import {GlobalSettingsService} from '../../../services/global-settings.service';
-import {debounceTime, filter, map} from 'rxjs/operators';
+import {debounceTime, distinctUntilChanged, filter, map, switchMap, takeUntil} from 'rxjs/operators';
 import {fade} from '../../../animations';
 import {TextRenderingService} from '../../songs/services/text-rendering.service';
 import {Section} from '../../songs/services/section';
 import {LineType} from '../../songs/services/line-type';
-import {AsyncPipe, DatePipe, NgFor, NgIf} from '@angular/common';
+import {AsyncPipe, DatePipe} from '@angular/common';
 import {CardComponent} from '../../../widget-modules/components/card/card.component';
 import {MatFormField, MatLabel} from '@angular/material/form-field';
 import {MatInput} from '@angular/material/input';
@@ -40,9 +40,7 @@ export interface PresentationSong {
   animations: [fade],
   changeDetection: ChangeDetectionStrategy.OnPush,
   imports: [
-    NgIf,
     CardComponent,
-    NgFor,
     MatFormField,
     MatLabel,
     MatInput,
@@ -62,7 +60,13 @@ export interface PresentationSong {
     SectionTypePipe,
   ],
 })
-export class RemoteComponent {
+export class RemoteComponent implements OnDestroy {
+  private showService = inject(ShowService);
+  private showSongService = inject(ShowSongService);
+  private songService = inject(SongService);
+  private textRenderingService = inject(TextRenderingService);
+  private cRef = inject(ChangeDetectorRef);
+
   public show: Show | null = null;
   public showSongs: ShowSong[] = [];
   public songs$ = this.songService.list$();
@@ -73,22 +77,45 @@ export class RemoteComponent {
   public faDesktop = faDesktop;
   public presentationDynamicCaptionChanged$ = new Subject<{presentationDynamicCaption: string; showId: string}>();
   public presentationDynamicTextChanged$ = new Subject<{presentationDynamicText: string; showId: string}>();
+  private destroy$ = new Subject<void>();
 
-  public constructor(
+  public constructor() {
-    private showService: ShowService,
+    const globalSettingsService = inject(GlobalSettingsService);
-    private showSongService: ShowSongService,
+
-    private songService: SongService,
+    const currentShowId$ = globalSettingsService.get$.pipe(
-    private textRenderingService: TextRenderingService,
+      filter((settings): settings is NonNullable<typeof settings> => !!settings),
-    globalSettingsService: GlobalSettingsService,
+      map(_ => _.currentShow),
-    private cRef: ChangeDetectorRef
+      filter((showId): showId is string => !!showId),
-  ) {
+      distinctUntilChanged(),
-    globalSettingsService.get$
+      takeUntil(this.destroy$)
-      .pipe(
+    );
-        filter(_ => !!_),
+
-        map(_ => _.currentShow)
+    const show$ = currentShowId$.pipe(
-      )
+      switchMap(showId => this.showService.read$(showId)),
-      .subscribe(_ => {
+      takeUntil(this.destroy$)
-        this.onShowChanged(_);
+    );
+
+    const parsedSongs$ = currentShowId$.pipe(
+      switchMap(showId => this.showSongService.list$(showId)),
+      map(list => ({
+        list,
+        parsed: list.map(song => ({
+          id: song.id,
+          title: song.title,
+          sections: this.textRenderingService.parse(song.text, null, false),
+        })),
+      })),
+      takeUntil(this.destroy$)
+    );
+
+    combineLatest([show$, parsedSongs$])
+      .pipe(takeUntil(this.destroy$))
+      .subscribe(([show, parsedSongs]) => {
+        this.showSongs = parsedSongs.list;
+        this.show = show;
+        const order = show?.order ?? [];
+        const presentationSongsById = new Map(parsedSongs.parsed.map(song => [song.id, song] as const));
+        this.presentationSongs = order.map(id => presentationSongsById.get(id) ?? null).filter((s): s is PresentationSong => !!s);
         this.cRef.markForCheck();
       });
 
@@ -102,20 +129,6 @@ export class RemoteComponent {
     return item.id;
   }
 
-  public onShowChanged(change: string): void {
-    combineLatest([this.showService.read$(change), this.showSongService.list$(change)]).subscribe(([show, list]) => {
-      this.showSongs = list;
-      this.show = show;
-      const presentationSongs = list.map(song => ({
-        id: song.id,
-        title: song.title,
-        sections: this.textRenderingService.parse(song.text, null, false),
-      }));
-      this.presentationSongs = show?.order.map(_ => presentationSongs.filter(f => f.id === _)[0]) ?? [];
-      this.cRef.markForCheck();
-    });
-  }
-
   public getFirstLine(section: Section): string {
     return section.lines.filter(_ => _.type === LineType.text)[0].text;
   }
@@ -142,4 +155,9 @@ export class RemoteComponent {
   public onDynamicText(presentationDynamicText: string, showId: string): void {
     this.presentationDynamicTextChanged$.next({presentationDynamicText, showId});
   }
+
+  public ngOnDestroy(): void {
+    this.destroy$.next();
+    this.destroy$.complete();
+  }
 }

src/app/modules/presentation/select/select.component.html

@@ -1,16 +1,25 @@
-<div *ngIf="shows$ | async as shows" @fade>
+@if (shows$ | async; as shows) {
-  <app-card *ngIf="visible" heading="Bitte eine Veranstaltung auswählen">
+  <div @fade>
-    <p *ngIf="!shows.length">
+    @if (visible) {
+      <app-card heading="Bitte eine Veranstaltung auswählen">
+        @if (!shows.length) {
+          <p>
             Es ist derzeit keine Veranstaltung vorhanden
           </p>
-
+        }
-    <div *ngIf="shows.length>0" class="list">
+        @if (shows.length>0) {
-      <button (click)="selectShow(show)" *ngFor="let show of shows" mat-stroked-button>
+          <div class="list">
+            @for (show of shows; track show) {
+              <button (click)="selectShow(show)" mat-stroked-button>
                 <app-user-name [userId]="show.owner"></app-user-name>
                 ,
                 {{ show.showType | showType }},
                 {{ show.date.toDate() | date: "dd.MM.yyyy" }}
               </button>
+            }
           </div>
+        }
       </app-card>
-</div>
+    }
+  </div>
+}

src/app/modules/presentation/select/select.component.spec.ts

@@ -0,0 +1,73 @@
+import {ComponentFixture, TestBed} from '@angular/core/testing';
+import {Router} from '@angular/router';
+import {of} from 'rxjs';
+import {GlobalSettingsService} from '../../../services/global-settings.service';
+import {ShowService} from '../../shows/services/show.service';
+import {SelectComponent} from './select.component';
+
+describe('SelectComponent', () => {
+  let component: SelectComponent;
+  let fixture: ComponentFixture<SelectComponent>;
+  let showServiceSpy: jasmine.SpyObj<ShowService>;
+  let globalSettingsServiceSpy: jasmine.SpyObj<GlobalSettingsService>;
+  let routerSpy: jasmine.SpyObj<Router>;
+
+  beforeEach(async () => {
+    showServiceSpy = jasmine.createSpyObj<ShowService>('ShowService', ['list$', 'update$']);
+    globalSettingsServiceSpy = jasmine.createSpyObj<GlobalSettingsService>('GlobalSettingsService', ['set']);
+    routerSpy = jasmine.createSpyObj<Router>('Router', ['navigateByUrl']);
+
+    showServiceSpy.list$.and.returnValue(
+      of([
+        {id: 'older', date: {toDate: () => new Date('2025-12-15T00:00:00Z')}},
+        {id: 'recent-a', date: {toDate: () => new Date('2026-03-01T00:00:00Z')}},
+        {id: 'recent-b', date: {toDate: () => new Date('2026-02-20T00:00:00Z')}},
+      ] as never)
+    );
+    showServiceSpy.update$.and.resolveTo();
+    globalSettingsServiceSpy.set.and.resolveTo();
+    routerSpy.navigateByUrl.and.resolveTo(true);
+
+    await TestBed.configureTestingModule({
+      imports: [SelectComponent],
+      providers: [
+        {provide: ShowService, useValue: showServiceSpy},
+        {provide: GlobalSettingsService, useValue: globalSettingsServiceSpy},
+        {provide: Router, useValue: routerSpy},
+      ],
+    }).compileComponents();
+
+    fixture = TestBed.createComponent(SelectComponent);
+    component = fixture.componentInstance;
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+
+  it('should become visible on init', () => {
+    component.ngOnInit();
+
+    expect(component.visible).toBeTrue();
+  });
+
+  it('should expose recent shows sorted descending by date', done => {
+    component.shows$.subscribe(shows => {
+      expect(showServiceSpy.list$).toHaveBeenCalledWith(true);
+      expect(shows.map(show => show.id)).toEqual(['recent-a', 'recent-b']);
+      done();
+    });
+  });
+
+  it('should persist the selected show, trigger presentation reset and navigate', async () => {
+    const show = {id: 'show-1'} as never;
+    component.visible = true;
+
+    await component.selectShow(show);
+
+    expect(component.visible).toBeFalse();
+    expect(globalSettingsServiceSpy.set).toHaveBeenCalledWith({currentShow: 'show-1'});
+    expect(showServiceSpy.update$).toHaveBeenCalledWith('show-1', {presentationSongId: 'title'});
+    expect(routerSpy.navigateByUrl).toHaveBeenCalledWith('/presentation/remote');
+  });
+});

src/app/modules/presentation/select/select.component.ts

@@ -1,11 +1,11 @@
-import {Component, OnInit} from '@angular/core';
+import {Component, OnInit, inject} from '@angular/core';
 import {map} from 'rxjs/operators';
 import {ShowService} from '../../shows/services/show.service';
 import {Show} from '../../shows/services/show';
 import {GlobalSettingsService} from '../../../services/global-settings.service';
 import {Router} from '@angular/router';
 import {fade} from '../../../animations';
-import {AsyncPipe, DatePipe, NgFor, NgIf} from '@angular/common';
+import {AsyncPipe, DatePipe} from '@angular/common';
 import {CardComponent} from '../../../widget-modules/components/card/card.component';
 import {MatButton} from '@angular/material/button';
 import {UserNameComponent} from '../../../services/user/user-name/user-name.component';
@@ -16,20 +16,18 @@ import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/s
   templateUrl: './select.component.html',
   styleUrls: ['./select.component.less'],
   animations: [fade],
-  imports: [NgIf, CardComponent, NgFor, MatButton, UserNameComponent, AsyncPipe, DatePipe, ShowTypePipe],
+  imports: [CardComponent, MatButton, UserNameComponent, AsyncPipe, DatePipe, ShowTypePipe],
 })
 export class SelectComponent implements OnInit {
+  private showService = inject(ShowService);
+  private globalSettingsService = inject(GlobalSettingsService);
+  private router = inject(Router);
+
   public visible = false;
   public shows$ = this.showService
     .list$(true)
     .pipe(map(_ => _.filter(_ => _.date.toDate() > new Date(new Date().setMonth(new Date().getMonth() - 1))).sort((a, b) => (b.date < a.date ? -1 : b.date > a.date ? 1 : 0))));
 
-  public constructor(
-    private showService: ShowService,
-    private globalSettingsService: GlobalSettingsService,
-    private router: Router
-  ) {}
-
   public async selectShow(show: Show) {
     this.visible = false;
 

src/app/modules/shows/dialog/share-dialog/share-dialog.component.spec.ts

@@ -1,12 +1,15 @@
 import {ComponentFixture, TestBed} from '@angular/core/testing';
 
 import {ShareDialogComponent} from './share-dialog.component';
+import QRCode from 'qrcode';
 
 describe('ShareDialogComponent', () => {
   let component: ShareDialogComponent;
   let fixture: ComponentFixture<ShareDialogComponent>;
 
   beforeEach(async () => {
+    spyOn(QRCode, 'toDataURL').and.resolveTo('data:image/jpeg;base64,test');
+
     await TestBed.configureTestingModule({
       imports: [ShareDialogComponent],
     }).compileComponents();

src/app/modules/shows/dialog/share-dialog/share-dialog.component.ts

@@ -1,4 +1,4 @@
-import {Component, Inject} from '@angular/core';
+import {Component, inject} from '@angular/core';
 import {MAT_DIALOG_DATA, MatDialogActions, MatDialogClose, MatDialogContent} from '@angular/material/dialog';
 import {MatButton} from '@angular/material/button';
 import QRCode from 'qrcode';
@@ -17,9 +17,13 @@ export interface ShareDialogData {
   styleUrl: './share-dialog.component.less',
 })
 export class ShareDialogComponent {
+  public data = inject<ShareDialogData>(MAT_DIALOG_DATA);
+
   public qrCode: string;
 
-  public constructor(@Inject(MAT_DIALOG_DATA) public data: ShareDialogData) {
+  public constructor() {
+    const data = this.data;
+
     // eslint-disable-next-line @typescript-eslint/no-unsafe-call,@typescript-eslint/no-unsafe-member-access,@typescript-eslint/no-unsafe-assignment
     QRCode.toDataURL(data.url, {
       type: 'image/jpeg',

src/app/modules/shows/edit/edit.component.html

@@ -5,16 +5,20 @@
         <mat-label>Art der Veranstaltung</mat-label>
         <mat-select formControlName="showType">
           <mat-optgroup label="öffentlich">
-            <mat-option *ngFor="let key of showTypePublic" [value]="key">{{
+            @for (key of showTypePublic; track key) {
+              <mat-option [value]="key">{{
                 key | showType
                 }}
               </mat-option>
+            }
           </mat-optgroup>
           <mat-optgroup label="privat">
-            <mat-option *ngFor="let key of showTypePrivate" [value]="key">{{
+            @for (key of showTypePrivate; track key) {
+              <mat-option [value]="key">{{
                 key | showType
                 }}
               </mat-option>
+            }
           </mat-optgroup>
         </mat-select>
       </mat-form-field>

src/app/modules/shows/edit/edit.component.spec.ts

@@ -0,0 +1,82 @@
+import {ComponentFixture, TestBed} from '@angular/core/testing';
+import {ActivatedRoute, Router} from '@angular/router';
+import {Timestamp} from '@angular/fire/firestore';
+import {of} from 'rxjs';
+import {ShowDataService} from '../services/show-data.service';
+import {ShowService} from '../services/show.service';
+import {EditComponent} from './edit.component';
+
+describe('EditComponent', () => {
+  let component: EditComponent;
+  let fixture: ComponentFixture<EditComponent>;
+  let showServiceSpy: jasmine.SpyObj<ShowService>;
+  let showDataServiceStub: Pick<ShowDataService, 'list$'>;
+  let routerSpy: jasmine.SpyObj<Router>;
+
+  beforeEach(async () => {
+    showServiceSpy = jasmine.createSpyObj<ShowService>('ShowService', ['read$', 'update$']);
+    showDataServiceStub = {list$: of([] as never)};
+    routerSpy = jasmine.createSpyObj<Router>('Router', ['navigateByUrl']);
+
+    showServiceSpy.read$.and.returnValue(
+      of({
+        id: 'show-1',
+        showType: 'service-worship',
+        date: {toDate: () => new Date('2026-03-10T00:00:00Z')},
+      } as never)
+    );
+    showServiceSpy.update$.and.resolveTo();
+    routerSpy.navigateByUrl.and.resolveTo(true);
+
+    await TestBed.configureTestingModule({
+      imports: [EditComponent],
+      providers: [
+        {provide: ShowService, useValue: showServiceSpy},
+        {provide: ShowDataService, useValue: showDataServiceStub},
+        {provide: Router, useValue: routerSpy},
+        {provide: ActivatedRoute, useValue: {params: of({showId: 'show-1'})}},
+      ],
+    }).compileComponents();
+
+    fixture = TestBed.createComponent(EditComponent);
+    component = fixture.componentInstance;
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+
+  it('should load the current show into the form on init', () => {
+    component.ngOnInit();
+
+    expect(showServiceSpy.read$).toHaveBeenCalledWith('show-1');
+    expect(component.form.value.id).toBe('show-1');
+    expect(component.form.value.showType).toBe('service-worship');
+    expect(component.form.value.date).toEqual(new Date('2026-03-10T00:00:00Z'));
+  });
+
+  it('should not save when the form is invalid', async () => {
+    component.form.setValue({id: null, date: null, showType: null});
+
+    await component.onSave();
+
+    expect(showServiceSpy.update$).not.toHaveBeenCalled();
+    expect(routerSpy.navigateByUrl).not.toHaveBeenCalled();
+  });
+
+  it('should update the show and navigate back to the detail page', async () => {
+    const date = new Date('2026-03-11T00:00:00Z');
+    const firestoreTimestamp = {seconds: 1} as never;
+    spyOn(Timestamp, 'fromDate').and.returnValue(firestoreTimestamp);
+    component.form.setValue({id: 'show-1', date, showType: 'home-group'});
+
+    await component.onSave();
+
+    expect(Timestamp.fromDate).toHaveBeenCalledWith(date);
+    expect(showServiceSpy.update$).toHaveBeenCalledWith('show-1', {
+      date: firestoreTimestamp,
+      showType: 'home-group',
+    } as never);
+    expect(routerSpy.navigateByUrl).toHaveBeenCalledWith('/shows/show-1');
+  });
+});

src/app/modules/shows/edit/edit.component.ts

@@ -1,4 +1,4 @@
-import {Component, OnInit} from '@angular/core';
+import {Component, OnInit, inject} from '@angular/core';
 import {ShowDataService} from '../services/show-data.service';
 import {Observable, take} from 'rxjs';
 import {Show} from '../services/show';
@@ -7,18 +7,17 @@ import {FormControl, FormGroup, ReactiveFormsModule, Validators} from '@angular/
 import {ActivatedRoute, Router} from '@angular/router';
 import {faSave} from '@fortawesome/free-solid-svg-icons';
 import {map, switchMap} from 'rxjs/operators';
-import firebase from 'firebase/compat/app';
+import {Timestamp} from '@angular/fire/firestore';
 import {CardComponent} from '../../../widget-modules/components/card/card.component';
 import {MatFormField, MatLabel, MatSuffix} from '@angular/material/form-field';
 import {MatSelect} from '@angular/material/select';
 import {MatOptgroup, MatOption} from '@angular/material/core';
-import {NgFor} from '@angular/common';
+
 import {MatInput} from '@angular/material/input';
 import {MatDatepicker, MatDatepickerInput, MatDatepickerToggle} from '@angular/material/datepicker';
 import {ButtonRowComponent} from '../../../widget-modules/components/button-row/button-row.component';
 import {ButtonComponent} from '../../../widget-modules/components/button/button.component';
 import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/show-type.pipe';
-import Timestamp = firebase.firestore.Timestamp;
 
 @Component({
   selector: 'app-edit',
@@ -31,7 +30,6 @@ import Timestamp = firebase.firestore.Timestamp;
     MatLabel,
     MatSelect,
     MatOptgroup,
-    NgFor,
     MatOption,
     MatInput,
     MatDatepickerInput,
@@ -44,6 +42,10 @@ import Timestamp = firebase.firestore.Timestamp;
   ],
 })
 export class EditComponent implements OnInit {
+  private showService = inject(ShowService);
+  private router = inject(Router);
+  private activatedRoute = inject(ActivatedRoute);
+
   public shows$: Observable<Show[]>;
   public showTypePublic = ShowService.SHOW_TYPE_PUBLIC;
   public showTypePrivate = ShowService.SHOW_TYPE_PRIVATE;
@@ -54,12 +56,9 @@ export class EditComponent implements OnInit {
   });
   public faSave = faSave;
 
-  public constructor(
+  public constructor() {
-    private showService: ShowService,
+    const showDataService = inject(ShowDataService);
-    showDataService: ShowDataService,
+
-    private router: Router,
-    private activatedRoute: ActivatedRoute
-  ) {
     this.shows$ = showDataService.list$;
   }
 

src/app/modules/shows/list/filter/filter.component.html

@@ -4,42 +4,52 @@
     <mat-form-field appearance="outline">
       <mat-label>Zeitraum</mat-label>
       <mat-select formControlName="time">
-        <mat-option *ngFor="let time of times" [value]="time.key">{{
+        @for (time of times; track time) {
+          <mat-option [value]="time.key">{{
             time.value
             }}
           </mat-option>
+        }
       </mat-select>
     </mat-form-field>
 
     <mat-form-field appearance="outline">
       <mat-label>Ersteller</mat-label>
       <mat-select formControlName="owner">
-        <mat-option *ngFor="let owner of owners" [value]="owner.key">{{
+        <mat-option value="">Alle</mat-option>
+        @for (owner of owners; track owner) {
+          <mat-option [value]="owner.key">{{
             owner.value
             }}
           </mat-option>
+        }
       </mat-select>
     </mat-form-field>
 
     <mat-form-field appearance="outline">
       <mat-label>Art der Veranstaltung</mat-label>
       <mat-select formControlName="showType">
+        <mat-option value="">Alle</mat-option>
         <mat-optgroup label="öffentlich">
-          <mat-option *ngFor="let key of showTypePublic" [value]="key">{{
+          @for (key of showTypePublic; track key) {
+            <mat-option [value]="key">{{
               key | showType
               }}
             </mat-option>
+          }
         </mat-optgroup>
         <mat-optgroup label="privat">
-          <mat-option *ngFor="let key of showTypePrivate" [value]="key">{{
+          @for (key of showTypePrivate; track key) {
+            <mat-option [value]="key">{{
               key | showType
               }}
             </mat-option>
+          }
         </mat-optgroup>
       </mat-select>
     </mat-form-field>
 
   </div>
 
-  <i>Anzahl der Suchergebnisse: {{ shows.length }}</i>
+  <i>Anzahl der Suchergebnisse: {{ shows?.length ?? 0 }}</i>
 </div>

src/app/modules/shows/list/filter/filter.component.ts

@@ -1,15 +1,14 @@
-import {Component, Input} from '@angular/core';
+import {Component, Input, inject} from '@angular/core';
-import {KeyValue, NgFor} from '@angular/common';
+import {KeyValue} from '@angular/common';
-import {ActivatedRoute, Router} from '@angular/router';
 import {ReactiveFormsModule, UntypedFormBuilder, UntypedFormGroup} from '@angular/forms';
 import {FilterValues} from './filter-values';
 import {Show} from '../../services/show';
 import {ShowService} from '../../services/show.service';
-import {distinctUntilChanged, map} from 'rxjs/operators';
+import {distinctUntilChanged, map, switchMap} from 'rxjs/operators';
-import {combineLatest, Observable} from 'rxjs';
+import {combineLatest, Observable, of} from 'rxjs';
 import {dynamicSort, onlyUnique} from '../../../../services/filter.helper';
 import {UserService} from '../../../../services/user/user.service';
-import {isEqual} from 'lodash';
+import {FilterStoreService} from '../../../../services/filter-store.service';
 import {MatFormField, MatLabel} from '@angular/material/form-field';
 import {MatSelect} from '@angular/material/select';
 import {MatOptgroup, MatOption} from '@angular/material/core';
@@ -19,10 +18,13 @@ import {ShowTypePipe} from '../../../../widget-modules/pipes/show-type-translate
   selector: 'app-filter',
   templateUrl: './filter.component.html',
   styleUrls: ['./filter.component.less'],
-  imports: [ReactiveFormsModule, MatFormField, MatLabel, MatSelect, NgFor, MatOption, MatOptgroup, ShowTypePipe],
+  imports: [ReactiveFormsModule, MatFormField, MatLabel, MatSelect, MatOption, MatOptgroup, ShowTypePipe],
 })
 export class FilterComponent {
-  @Input() public route = '/shows/';
+  private showService = inject(ShowService);
+  private userService = inject(UserService);
+  private filterStore = inject(FilterStoreService);
+
   @Input() public shows: Show[] = [];
 
   public showTypePublic = ShowService.SHOW_TYPE_PUBLIC;
@@ -38,58 +40,74 @@ export class FilterComponent {
 
   public owners: {key: string; value: string}[] = [];
 
-  public constructor(
+  public constructor() {
-    private router: Router,
+    const fb = inject(UntypedFormBuilder);
-    private showService: ShowService,
+
-    private userService: UserService,
-    activatedRoute: ActivatedRoute,
-    fb: UntypedFormBuilder
-  ) {
     this.filterFormGroup = fb.group({
       time: 1,
       owner: null,
       showType: null,
     });
 
-    activatedRoute.queryParams.subscribe(params => {
+    this.filterStore.showFilter$.subscribe(filterValues => {
-      const filterValues = params as FilterValues;
+      this.filterFormGroup.patchValue(
-      if (filterValues.time) this.filterFormGroup.controls.time.setValue(+filterValues.time);
+        {
+          time: filterValues.time,
+          owner: filterValues.owner || null,
+          showType: filterValues.showType || null,
+        },
+        {emitEvent: false}
+      );
     });
 
-    this.filterFormGroup.controls.time.valueChanges.subscribe(_ => void this.filerValueChanged('time', _ as number));
+    this.filterFormGroup.controls.time.valueChanges.subscribe(_ => this.filterValueChanged('time', (_ as number) ?? 1));
-    this.filterFormGroup.controls.owner.valueChanges.subscribe(_ => void this.filerValueChanged('owner', _ as string));
+    this.filterFormGroup.controls.owner.valueChanges.subscribe(_ => this.filterValueChanged('owner', (_ as string | null) ?? ''));
-    this.filterFormGroup.controls.showType.valueChanges.subscribe(_ => void this.filerValueChanged('showType', _ as string));
+    this.filterFormGroup.controls.showType.valueChanges.subscribe(_ => this.filterValueChanged('showType', (_ as string | null) ?? ''));
 
     this.owners$().subscribe(owners => (this.owners = owners));
   }
 
   public owners$ = (): Observable<{key: string; value: string}[]> => {
-    return combineLatest([
+    return this.showService.list$().pipe(
-      this.showService.list$().pipe(
+      map(shows =>
-        map(shows => {
+        shows
-          return shows.map(show => show.owner).filter(onlyUnique);
+          .map(show => show.owner)
-        })
+          .filter(onlyUnique)
+          .filter((ownerId): ownerId is string => !!ownerId)
       ),
-      this.userService.users$,
+      switchMap(ownerIds => {
-    ]).pipe(
+        if (ownerIds.length === 0) {
-      map(([owners, users]) => {
+          return of([] as {key: string; value: string}[]);
-        return owners
+        }
-          .map(ownerId => ({
+
+        return combineLatest(
+          ownerIds.map(ownerId =>
+            this.userService.getUserbyId$(ownerId).pipe(
+              map(user => ({
                 key: ownerId,
-            value: users.find(user => user.id === ownerId)?.name,
+                value: user?.name,
               }))
-          .sort(dynamicSort('value'));
+            )
+          )
+        );
       }),
-      distinctUntilChanged(isEqual),
+      map(owners => {
+        return owners.sort(dynamicSort('value'));
+      }),
+      distinctUntilChanged((left, right) => this.sameOwners(left, right)),
       map(_ => _ as {key: string; value: string}[])
     );
   };
 
-  private async filerValueChanged<T>(key: string, value: T): Promise<void> {
+  private filterValueChanged<T>(key: keyof FilterValues, value: T): void {
-    const route = this.router.createUrlTree([this.route], {
+    this.filterStore.updateShowFilter({[key]: value} as Partial<FilterValues>);
-      queryParams: {[key]: value},
+  }
-      queryParamsHandling: 'merge',
+
-    });
+  private sameOwners(left: {key: string; value: string}[], right: {key: string; value: string}[]): boolean {
-    await this.router.navigateByUrl(route);
+    if (left.length !== right.length) {
+      return false;
+    }
+
+    return left.every((owner, index) => owner.key === right[index]?.key && owner.value === right[index]?.value);
   }
 }

src/app/modules/shows/list/list-item/list-item.component.html

@@ -1,7 +1,9 @@
-<div *ngIf="show" class="list-item">
+@if (show) {
+  <div class="list-item">
     <div>{{ show.date.toDate() | date: "dd.MM.yyyy" }}</div>
     <div>
       <app-user-name [userId]="show.owner"></app-user-name>
     </div>
     <div>{{ show.showType | showType }}</div>
-</div>
+  </div>
+}

src/app/modules/shows/list/list-item/list-item.component.less

@@ -1,5 +1,3 @@
-@import "../../../../../styles/styles";
-
 .list-item {
   padding: 5px 20px;
   display: grid;
@@ -12,10 +10,11 @@
   }
 
   cursor: pointer;
+  transition: var(--transition);
 
   &:hover {
-    background: @primary-color;
+    background: var(--hover-background);
-    color: #fff;
+    color: var(--text);
   }
 }
 

src/app/modules/shows/list/list-item/list-item.component.ts

@@ -1,6 +1,6 @@
 import {Component, Input} from '@angular/core';
 import {Show} from '../../services/show';
-import {DatePipe, NgIf} from '@angular/common';
+import {DatePipe} from '@angular/common';
 import {UserNameComponent} from '../../../../services/user/user-name/user-name.component';
 import {ShowTypePipe} from '../../../../widget-modules/pipes/show-type-translater/show-type.pipe';
 
@@ -8,7 +8,7 @@ import {ShowTypePipe} from '../../../../widget-modules/pipes/show-type-translate
   selector: 'app-list-item',
   templateUrl: './list-item.component.html',
   styleUrls: ['./list-item.component.less'],
-  imports: [NgIf, UserNameComponent, DatePipe, ShowTypePipe],
+  imports: [UserNameComponent, DatePipe, ShowTypePipe],
 })
 export class ListItemComponent {
   @Input() public show: Show | null = null;

src/app/modules/shows/list/list.component.html

@@ -1,36 +1,42 @@
 <div>
   <!--  <app-list-header *appRole="['leader']"></app-list-header>-->
   <app-list-header *appRole="['leader']">
-    <app-filter *ngIf="shows$ | async as shows" [shows]="publicShows$ | async"></app-filter>
+    @if (shows$ | async; as shows) {
+      <app-filter [shows]="publicShows$ | async"></app-filter>
+    }
   </app-list-header>
 
   <ng-container *appRole="['leader']">
-    <ng-container *ngIf="privateShows$ | async as shows">
+    @if (privateShows$ | async; as shows) {
+      @if (shows.length > 0) {
         <app-card
-        *ngIf="shows.length > 0"
           [padding]="false"
           heading="Meine Veranstaltungen"
           >
+          @for (show of shows | sortBy: 'desc':'date'; track show) {
             <app-list-item
-          *ngFor="let show of shows | sortBy: 'desc':'date'"
               [routerLink]="show.id"
               [show]="show"
             ></app-list-item>
+          }
         </app-card>
-    </ng-container>
+      }
+    }
   </ng-container>
 
-  <ng-container *ngIf="publicShows$ | async as shows">
+  @if (publicShows$ | async; as shows) {
+    @if (shows.length > 0) {
       <app-card
-      *ngIf="shows.length > 0"
         [padding]="false"
         heading="Veröffentlichte Veranstaltungen"
         >
+        @for (show of shows | sortBy: 'desc':'date'; track trackBy($index, show)) {
           <app-list-item
-        *ngFor="let show of shows | sortBy: 'desc':'date'; trackBy: trackBy"
             [routerLink]="show.id"
             [show]="show"
           ></app-list-item>
+        }
       </app-card>
-  </ng-container>
+    }
+  }
 </div>

src/app/modules/shows/list/list.component.ts

@@ -1,14 +1,15 @@
-import {Component} from '@angular/core';
+import {Component, inject} from '@angular/core';
 import {combineLatest} from 'rxjs';
 import {Show} from '../services/show';
 import {fade} from '../../../animations';
 import {ShowService} from '../services/show.service';
 import {FilterValues} from './filter/filter-values';
-import {ActivatedRoute, RouterLink} from '@angular/router';
+import {RouterLink} from '@angular/router';
-import {map} from 'rxjs/operators';
+import {map, switchMap} from 'rxjs/operators';
+import {FilterStoreService} from '../../../services/filter-store.service';
 import {RoleDirective} from '../../../services/user/role.directive';
 import {ListHeaderComponent} from '../../../widget-modules/components/list-header/list-header.component';
-import {AsyncPipe, NgFor, NgIf} from '@angular/common';
+import {AsyncPipe} from '@angular/common';
 import {FilterComponent} from './filter/filter.component';
 import {CardComponent} from '../../../widget-modules/components/card/card.component';
 import {ListItemComponent} from './list-item/list-item.component';
@@ -19,41 +20,44 @@ import {SortByPipe} from '../../../widget-modules/pipes/sort-by/sort-by.pipe';
   templateUrl: './list.component.html',
   styleUrls: ['./list.component.less'],
   animations: [fade],
-  imports: [RoleDirective, ListHeaderComponent, NgIf, FilterComponent, CardComponent, NgFor, ListItemComponent, RouterLink, AsyncPipe, SortByPipe],
+  imports: [RoleDirective, ListHeaderComponent, FilterComponent, CardComponent, ListItemComponent, RouterLink, AsyncPipe, SortByPipe],
 })
 export class ListComponent {
+  private showService = inject(ShowService);
+  private filterStore = inject(FilterStoreService);
+
+  public filter$ = this.filterStore.showFilter$;
+  public lastMonths$ = this.filter$.pipe(map((filterValues: FilterValues) => filterValues.time || 1));
+  public owner$ = this.filter$.pipe(map((filterValues: FilterValues) => filterValues.owner));
+  public showType$ = this.filter$.pipe(map((filterValues: FilterValues) => filterValues.showType));
   public shows$ = this.showService.list$();
-  public privateShows$ = this.showService.list$().pipe(map(show => show.filter(_ => !_.published)));
+  public privateShows$ = combineLatest([this.shows$, this.filter$]).pipe(
-  public lastMonths$ = this.activatedRoute.queryParams.pipe(
+    map(([shows, filter]) => shows.filter(show => !show.published).filter(show => this.matchesPrivateFilter(show, filter)))
-    map(params => {
+  );
-      const filterValues = params as FilterValues;
+  public queriedPublicShows$ = this.lastMonths$.pipe(switchMap(lastMonths => this.showService.listPublicSince$(lastMonths)));
-      if (!filterValues?.time) return 1;
+  public fallbackPublicShows$ = combineLatest([this.shows$, this.lastMonths$]).pipe(
-      return +filterValues.time;
+    map(([shows, lastMonths]) => {
-    })
+      return shows.filter(show => show.published && !show.archived).filter(show => this.matchesTimeFilter(show, lastMonths));
-  );
-  public owner$ = this.activatedRoute.queryParams.pipe(
-    map(params => {
-      const filterValues = params as FilterValues;
-      return filterValues?.owner;
     })
   );
+  public publicShows$ = combineLatest([this.queriedPublicShows$, this.fallbackPublicShows$, this.owner$, this.showType$]).pipe(
+    map(([queriedShows, fallbackShows, owner, showType]) => {
+      const shows = queriedShows.length > 0 || fallbackShows.length === 0 ? queriedShows : fallbackShows;
 
-  public publicShows$ = combineLatest([this.shows$, this.lastMonths$, this.owner$]).pipe(
+      return shows.filter(show => !owner || show.owner === owner).filter(show => !showType || show.showType === showType);
-    map(([shows, lastMonths, owner]) =>
-      shows
-        .filter(f => {
-          const d = new Date();
-          d.setMonth(d.getMonth() - lastMonths);
-          return f.published && f.date.toDate() >= d;
     })
-        .filter(show => !owner || show.owner === owner)
-    )
   );
 
-  public constructor(
-    private showService: ShowService,
-    private activatedRoute: ActivatedRoute
-  ) {}
-
   public trackBy = (index: number, show: unknown) => (show as Show).id;
+
+  private matchesPrivateFilter(show: Show, filter: FilterValues): boolean {
+    return this.matchesTimeFilter(show, filter.time || 1) && (!filter.showType || show.showType === filter.showType);
+  }
+
+  private matchesTimeFilter(show: Show, lastMonths: number): boolean {
+    const startDate = new Date();
+    startDate.setHours(0, 0, 0, 0);
+    startDate.setDate(startDate.getDate() - lastMonths * 30);
+    return show.date.toDate() >= startDate;
+  }
 }

src/app/modules/shows/new/new.component.html

@@ -5,16 +5,20 @@
         <mat-label>Art der Veranstaltung</mat-label>
         <mat-select formControlName="showType">
           <mat-optgroup label="öffentlich">
-            <mat-option *ngFor="let key of showTypePublic" [value]="key">{{
+            @for (key of showTypePublic; track key) {
+              <mat-option [value]="key">{{
                 key | showType
                 }}
               </mat-option>
+            }
           </mat-optgroup>
           <mat-optgroup label="privat">
-            <mat-option *ngFor="let key of showTypePrivate" [value]="key">{{
+            @for (key of showTypePrivate; track key) {
+              <mat-option [value]="key">{{
                 key | showType
                 }}
               </mat-option>
+            }
           </mat-optgroup>
         </mat-select>
       </mat-form-field>

src/app/modules/shows/new/new.component.ts

@@ -1,4 +1,4 @@
-import {Component, OnInit} from '@angular/core';
+import {Component, OnInit, inject} from '@angular/core';
 import {ShowDataService} from '../services/show-data.service';
 import {Observable} from 'rxjs';
 import {Show} from '../services/show';
@@ -10,7 +10,7 @@ import {CardComponent} from '../../../widget-modules/components/card/card.compon
 import {MatFormField, MatLabel, MatSuffix} from '@angular/material/form-field';
 import {MatSelect} from '@angular/material/select';
 import {MatOptgroup, MatOption} from '@angular/material/core';
-import {NgFor} from '@angular/common';
+
 import {MatInput} from '@angular/material/input';
 import {MatDatepicker, MatDatepickerInput, MatDatepickerToggle} from '@angular/material/datepicker';
 import {ButtonRowComponent} from '../../../widget-modules/components/button-row/button-row.component';
@@ -28,7 +28,6 @@ import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/s
     MatLabel,
     MatSelect,
     MatOptgroup,
-    NgFor,
     MatOption,
     MatInput,
     MatDatepickerInput,
@@ -41,6 +40,9 @@ import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/s
   ],
 })
 export class NewComponent implements OnInit {
+  private showService = inject(ShowService);
+  private router = inject(Router);
+
   public shows$: Observable<Show[]>;
   public showTypePublic = ShowService.SHOW_TYPE_PUBLIC;
   public showTypePrivate = ShowService.SHOW_TYPE_PRIVATE;
@@ -50,11 +52,9 @@ export class NewComponent implements OnInit {
   });
   public faSave = faSave;
 
-  public constructor(
+  public constructor() {
-    private showService: ShowService,
+    const showDataService = inject(ShowDataService);
-    showDataService: ShowDataService,
+
-    private router: Router
-  ) {
     this.shows$ = showDataService.list$;
   }
 

src/app/modules/shows/services/docx.service.spec.ts

@@ -1,16 +1,56 @@
 import {TestBed} from '@angular/core/testing';
-
+import {Packer} from 'docx';
 import {DocxService} from './docx.service';
 
 describe('DocxService', () => {
   let service: DocxService;
+  type DocxServiceInternals = DocxService & {
+    prepareData: (showId: string) => Promise<unknown>;
+    prepareNewDocument: (data: unknown, options?: unknown) => unknown;
+    saveAs: (blob: Blob, name: string) => void;
+  };
 
-  beforeEach(() => {
+  beforeEach(async () => {
-    void TestBed.configureTestingModule({});
+    await TestBed.configureTestingModule({});
     service = TestBed.inject(DocxService);
   });
 
   it('should be created', () => {
     void expect(service).toBeTruthy();
   });
+
+  it('should not try to save a document when the required data cannot be prepared', async () => {
+    const serviceInternals = service as DocxServiceInternals;
+    const prepareDataSpy = spyOn(serviceInternals, 'prepareData').and.resolveTo(null);
+    const saveAsSpy = spyOn(serviceInternals, 'saveAs');
+
+    await service.create('show-1');
+
+    expect(prepareDataSpy).toHaveBeenCalledWith('show-1');
+    expect(saveAsSpy).not.toHaveBeenCalled();
+  });
+
+  it('should build and save a docx file when all data is available', async () => {
+    const blob = new Blob(['docx']);
+    const serviceInternals = service as DocxServiceInternals;
+    const prepareDataSpy = spyOn(serviceInternals, 'prepareData').and.resolveTo({
+      show: {
+        showType: 'service-worship',
+        date: {toDate: () => new Date('2026-03-10T00:00:00Z')},
+      },
+      songs: [],
+      user: {name: 'Benjamin'},
+      config: {ccliLicenseId: '12345'},
+    });
+    const prepareNewDocumentSpy = spyOn(serviceInternals, 'prepareNewDocument').and.returnValue({doc: true});
+    const saveAsSpy = spyOn(serviceInternals, 'saveAs');
+    spyOn(Packer, 'toBlob').and.resolveTo(blob);
+
+    await service.create('show-1', {copyright: true});
+
+    expect(prepareDataSpy).toHaveBeenCalledWith('show-1');
+    expect(prepareNewDocumentSpy).toHaveBeenCalled();
+    expect(Packer.toBlob).toHaveBeenCalledWith({doc: true} as never);
+    expect(saveAsSpy).toHaveBeenCalledWith(blob, jasmine.stringMatching(/\.docx$/));
+  });
 });

src/app/modules/shows/services/docx.service.ts

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {Document, HeadingLevel, ISectionOptions, Packer, Paragraph} from 'docx';
 import {ShowService} from './show.service';
 import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/show-type.pipe';
@@ -26,13 +26,11 @@ export interface DownloadOptions {
   providedIn: 'root',
 })
 export class DocxService {
-  public constructor(
+  private showService = inject(ShowService);
-    private showService: ShowService,
+  private showSongService = inject(ShowSongService);
-    private showSongService: ShowSongService,
+  private textRenderingService = inject(TextRenderingService);
-    private textRenderingService: TextRenderingService,
+  private userService = inject(UserService);
-    private userService: UserService,
+  private configService = inject(ConfigService);
-    private configService: ConfigService
-  ) {}
 
   public async create(showId: string, options: DownloadOptions = {}): Promise<void> {
     const data = await this.prepareData(showId);
@@ -194,7 +192,8 @@ export class DocxService {
     if (!config) return null;
 
     const showSongs = await this.showSongService.list(showId);
-    const songsAsync = showSongs.map(showSong => {
+    const songsLoaded = showSongs
+      .map(showSong => {
         const sections = this.textRenderingService.parse(showSong.text, {
           baseKey: showSong.keyOriginal,
           targetKey: showSong.key,
@@ -203,8 +202,7 @@ export class DocxService {
           showSong,
           sections,
         };
-    });
+      })
-    const songsLoaded = (await Promise.all(songsAsync))
       .filter(_ => !!_)
       .map(
         _ =>
@@ -213,7 +211,7 @@ export class DocxService {
             sections: Section[];
           }
       );
-    const songs = show.order.map(_ => songsLoaded.filter(f => f.showSong.id === _)[0]);
+    const songs = show.order.map(_ => songsLoaded.find(f => f.showSong.id === _)).filter(_ => !!_);
     return {songs, show, user, config};
   }
 

src/app/modules/shows/services/show-data.service.spec.ts

@@ -1,12 +1,111 @@
 import {TestBed} from '@angular/core/testing';
-
+import {firstValueFrom, of, Subject} from 'rxjs';
+import {take} from 'rxjs/operators';
+import {DbService} from '../../../services/db.service';
 import {ShowDataService} from './show-data.service';
 
 describe('ShowDataService', () => {
-  beforeEach(() => void TestBed.configureTestingModule({}));
+  let service: ShowDataService;
+  let shows$: Subject<Array<{id: string; date: {toMillis: () => number}; archived?: boolean}>>;
+  let docUpdateSpy: jasmine.Spy<() => Promise<void>>;
+  let docSpy: jasmine.Spy;
+  let colAddSpy: jasmine.Spy<() => Promise<{id: string}>>;
+  let colSpy: jasmine.Spy;
+  let dbServiceSpy: jasmine.SpyObj<DbService>;
+
+  beforeEach(async () => {
+    shows$ = new Subject<Array<{id: string; date: {toMillis: () => number}; archived?: boolean}>>();
+    docUpdateSpy = jasmine.createSpy('update').and.resolveTo();
+    docSpy = jasmine.createSpy('doc').and.returnValue({update: docUpdateSpy});
+    colAddSpy = jasmine.createSpy('add').and.resolveTo({id: 'show-3'});
+    colSpy = jasmine.createSpy('col').and.returnValue({add: colAddSpy});
+    dbServiceSpy = jasmine.createSpyObj<DbService>('DbService', ['col$', 'doc$', 'doc', 'col']);
+    dbServiceSpy.col$.and.returnValue(shows$.asObservable());
+    dbServiceSpy.doc$.and.returnValue(of(null));
+    dbServiceSpy.doc.and.callFake(docSpy);
+    dbServiceSpy.col.and.callFake(colSpy);
+
+    await TestBed.configureTestingModule({
+      providers: [{provide: DbService, useValue: dbServiceSpy}],
+    });
+
+    service = TestBed.inject(ShowDataService);
+  });
 
   it('should be created', () => {
-    const service: ShowDataService = TestBed.inject(ShowDataService);
+    expect(service).toBeTruthy();
-    void expect(service).toBeTruthy();
+  });
+
+  it('should load the raw show list from the shows collection on creation', () => {
+    expect(dbServiceSpy.col$).toHaveBeenCalledWith('shows');
+  });
+
+  it('should sort the list by ascending show date', async () => {
+    const listPromise = firstValueFrom(service.list$.pipe(take(1)));
+
+    shows$.next([
+      {id: 'show-2', date: {toMillis: () => 200}},
+      {id: 'show-1', date: {toMillis: () => 100}},
+      {id: 'show-3', date: {toMillis: () => 300}},
+    ]);
+
+    const list = await listPromise;
+
+    expect(list.map(show => show.id)).toEqual(['show-1', 'show-2', 'show-3']);
+  });
+
+  it('should replay the latest sorted list to late subscribers', async () => {
+    const initialSubscription = service.list$.subscribe();
+
+    shows$.next([
+      {id: 'show-2', date: {toMillis: () => 200}},
+      {id: 'show-1', date: {toMillis: () => 100}},
+    ]);
+
+    const replayedList = await firstValueFrom(service.list$.pipe(take(1)));
+
+    expect(replayedList.map(show => show.id)).toEqual(['show-1', 'show-2']);
+
+    initialSubscription.unsubscribe();
+  });
+
+  it('should expose the raw list without sorting via listRaw$', () => {
+    service.listRaw$().subscribe();
+
+    expect(dbServiceSpy.col$).toHaveBeenCalledWith('shows');
+  });
+
+  it('should request only published recent shows and filter archived entries', async () => {
+    const publicShows$ = of([{id: 'show-1', archived: false}, {id: 'show-2', archived: true}, {id: 'show-3'}]);
+    dbServiceSpy.col$.and.returnValue(publicShows$ as never);
+
+    const result = await firstValueFrom(service.listPublicSince$(3));
+
+    expect(dbServiceSpy.col$).toHaveBeenCalledWith('shows', jasmine.any(Array));
+    const [, queryConstraints] = dbServiceSpy.col$.calls.mostRecent().args as [string, unknown[]];
+    expect(queryConstraints.length).toBe(3);
+    expect(result.map(show => show.id)).toEqual(['show-1', 'show-3']);
+  });
+
+  it('should read a single show by id', () => {
+    service.read$('show-7').subscribe();
+
+    expect(dbServiceSpy.doc$).toHaveBeenCalledWith('shows/show-7');
+  });
+
+  it('should update a show at the expected document path', async () => {
+    await service.update('show-8', {archived: true});
+
+    expect(docSpy).toHaveBeenCalledWith('shows/show-8');
+    const [updatePayload] = docUpdateSpy.calls.mostRecent().args as unknown as [Record<string, unknown>];
+    expect(updatePayload).toEqual({archived: true});
+  });
+
+  it('should add a show to the shows collection and return the new id', async () => {
+    await expectAsync(service.add({published: true})).toBeResolvedTo('show-3');
+
+    expect(colSpy).toHaveBeenCalledWith('shows');
+    const [addPayload] = colAddSpy.calls.mostRecent().args as unknown as [Record<string, unknown>];
+    expect(addPayload).toEqual({published: true});
   });
 });

src/app/modules/shows/services/show-data.service.ts

@@ -1,26 +1,50 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
-import {BehaviorSubject, Observable} from 'rxjs';
+import {Observable} from 'rxjs';
 import {DbService} from '../../../services/db.service';
 import {Show} from './show';
-import {map} from 'rxjs/operators';
+import {map, shareReplay} from 'rxjs/operators';
+import {orderBy, QueryConstraint, Timestamp, where} from 'firebase/firestore';
 
 @Injectable({
   providedIn: 'root',
 })
 export class ShowDataService {
-  public list$ = new BehaviorSubject<Show[]>([]);
+  private dbService = inject(DbService);
-  private collection = 'shows';
 
-  public constructor(private dbService: DbService) {
+  private collection = 'shows';
-    this.dbService.col$<Show>(this.collection).subscribe(_ => this.list$.next(_));
+  public list$: Observable<Show[]> = this.dbService.col$<Show>(this.collection).pipe(
-  }
+    // server-side ordering cuts client work and keeps stable order across subscribers
+    map(shows => [...shows].sort((a, b) => a.date.toMillis() - b.date.toMillis())),
+    shareReplay({
+      bufferSize: 1,
+      refCount: true,
+    })
+  );
 
   public listRaw$ = () => this.dbService.col$<Show>(this.collection);
 
-  public read$ = (showId: string): Observable<Show | null> => this.list$.pipe(map(_ => _.find(s => s.id === showId) || null));
+  public listPublicSince$(lastMonths: number): Observable<Show[]> {
+    const queryConstraints: QueryConstraint[] = [where('published', '==', true), orderBy('date', 'desc')];
+
+    if (lastMonths < 99999) {
+      const startDate = new Date();
+      startDate.setHours(0, 0, 0, 0);
+      startDate.setDate(startDate.getDate() - lastMonths * 30);
+      const startTimestamp = Timestamp.fromDate(startDate);
+      queryConstraints.splice(1, 0, where('date', '>=', startTimestamp));
+    }
+
+    return this.dbService.col$<Show>(this.collection, queryConstraints).pipe(
+      map(shows => shows.filter(show => !show.archived)),
+      shareReplay({
+        bufferSize: 1,
+        refCount: true,
+      })
+    );
+  }
+
+  public read$ = (showId: string): Observable<Show | null> => this.dbService.doc$(`${this.collection}/${showId}`);
 
-  // public list$ = (): Observable<Show[]> => this.dbService.col$(this.collection);
-  // public read$ = (showId: string): Observable<Show | null> => this.dbService.doc$(`${this.collection}/${showId}`);
   public update = async (showId: string, data: Partial<Show>): Promise<void> => await this.dbService.doc(`${this.collection}/${showId}`).update(data);
   public add = async (data: Partial<Show>): Promise<string> => (await this.dbService.col(this.collection).add(data)).id;
 }

src/app/modules/shows/services/show-song-data.service.spec.ts

@@ -1,16 +1,98 @@
 import {TestBed} from '@angular/core/testing';
-
+import {of} from 'rxjs';
+import {DbService} from '../../../services/db.service';
 import {ShowSongDataService} from './show-song-data.service';
 
 describe('ShowSongDataService', () => {
   let service: ShowSongDataService;
+  let docUpdateSpy: jasmine.Spy<() => Promise<void>>;
+  let docDeleteSpy: jasmine.Spy<() => Promise<void>>;
+  let docSpy: jasmine.Spy;
+  let colAddSpy: jasmine.Spy<() => Promise<{id: string}>>;
+  let colSpy: jasmine.Spy;
+  let dbServiceSpy: jasmine.SpyObj<DbService>;
+
+  beforeEach(async () => {
+    docUpdateSpy = jasmine.createSpy('update').and.resolveTo();
+    docDeleteSpy = jasmine.createSpy('delete').and.resolveTo();
+    docSpy = jasmine.createSpy('doc').and.returnValue({
+      update: docUpdateSpy,
+      delete: docDeleteSpy,
+    });
+    colAddSpy = jasmine.createSpy('add').and.resolveTo({id: 'show-song-3'});
+    colSpy = jasmine.createSpy('col').and.returnValue({add: colAddSpy});
+    dbServiceSpy = jasmine.createSpyObj<DbService>('DbService', ['col$', 'doc$', 'doc', 'col']);
+    dbServiceSpy.col$.and.callFake(() => of([{id: 'show-song-1'}]) as never);
+    dbServiceSpy.doc$.and.returnValue(of({id: 'show-song-1'}) as never);
+    dbServiceSpy.doc.and.callFake(docSpy);
+    dbServiceSpy.col.and.callFake(colSpy);
+
+    await TestBed.configureTestingModule({
+      providers: [{provide: DbService, useValue: dbServiceSpy}],
+    });
 
-  beforeEach(() => {
-    void TestBed.configureTestingModule({});
     service = TestBed.inject(ShowSongDataService);
   });
 
   it('should be created', () => {
-    void expect(service).toBeTruthy();
+    expect(service).toBeTruthy();
+  });
+
+  it('should cache the list observable per show id when no query constraints are passed', () => {
+    const first = service.list$('show-1');
+    const second = service.list$('show-1');
+
+    expect(first).toBe(second);
+    expect(dbServiceSpy.col$).toHaveBeenCalledTimes(1);
+    expect(dbServiceSpy.col$).toHaveBeenCalledWith('shows/show-1/songs');
+  });
+
+  it('should not reuse the cache when query constraints are passed', () => {
+    const constraints = [{}] as never[];
+
+    const first = service.list$('show-1', constraints as never);
+    const second = service.list$('show-1', constraints as never);
+
+    expect(first).not.toBe(second);
+    expect(dbServiceSpy.col$).toHaveBeenCalledTimes(2);
+    expect(dbServiceSpy.col$).toHaveBeenCalledWith('shows/show-1/songs', constraints as never);
+  });
+
+  it('should keep separate caches for different shows', () => {
+    service.list$('show-1');
+    service.list$('show-2');
+
+    expect(dbServiceSpy.col$).toHaveBeenCalledTimes(2);
+    expect(dbServiceSpy.col$).toHaveBeenCalledWith('shows/show-1/songs');
+    expect(dbServiceSpy.col$).toHaveBeenCalledWith('shows/show-2/songs');
+  });
+
+  it('should read a single show song by nested document path', () => {
+    service.read$('show-4', 'song-5').subscribe();
+
+    expect(dbServiceSpy.doc$).toHaveBeenCalledWith('shows/show-4/songs/song-5');
+  });
+
+  it('should update a nested show song document', async () => {
+    await service.update$('show-4', 'song-5', {title: 'Updated'} as never);
+
+    expect(docSpy).toHaveBeenCalledWith('shows/show-4/songs/song-5');
+    const [updatePayload] = docUpdateSpy.calls.mostRecent().args as unknown as [Record<string, unknown>];
+    expect(updatePayload).toEqual({title: 'Updated'});
+  });
+
+  it('should delete a nested show song document', async () => {
+    await service.delete('show-4', 'song-5');
+
+    expect(docSpy).toHaveBeenCalledWith('shows/show-4/songs/song-5');
+    expect(docDeleteSpy).toHaveBeenCalled();
+  });
+
+  it('should add a song to the nested show songs collection and return the id', async () => {
+    await expectAsync(service.add('show-4', {songId: 'song-5'} as never)).toBeResolvedTo('show-song-3');
+
+    expect(colSpy).toHaveBeenCalledWith('shows/show-4/songs');
+    const [addPayload] = colAddSpy.calls.mostRecent().args as unknown as [Record<string, unknown>];
+    expect(addPayload).toEqual({songId: 'song-5'});
   });
 });

src/app/modules/shows/services/show-song-data.service.ts

@@ -1,19 +1,41 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {DbService} from '../../../services/db.service';
 import {Observable} from 'rxjs';
 import {ShowSong} from './show-song';
-import {QueryFn} from '@angular/fire/compat/firestore/interfaces';
+import {QueryConstraint} from '@angular/fire/firestore';
+import {shareReplay} from 'rxjs/operators';
 
 @Injectable({
   providedIn: 'root',
 })
 export class ShowSongDataService {
+  private dbService = inject(DbService);
+
   private collection = 'shows';
   private subCollection = 'songs';
+  private listCache = new Map<string, Observable<ShowSong[]>>();
 
-  public constructor(private dbService: DbService) {}
+  public list$ = (showId: string, queryConstraints?: QueryConstraint[]): Observable<ShowSong[]> => {
+    if (queryConstraints && queryConstraints.length > 0) {
+      return this.dbService.col$(`${this.collection}/${showId}/${this.subCollection}`, queryConstraints);
+    }
+
+    const cached = this.listCache.get(showId);
+    if (cached) {
+      return cached;
+    }
+
+    const stream$ = this.dbService.col$<ShowSong>(`${this.collection}/${showId}/${this.subCollection}`).pipe(
+      shareReplay({
+        bufferSize: 1,
+        refCount: true,
+      })
+    );
+
+    this.listCache.set(showId, stream$);
+    return stream$;
+  };
 
-  public list$ = (showId: string, queryFn?: QueryFn): Observable<ShowSong[]> => this.dbService.col$(`${this.collection}/${showId}/${this.subCollection}`, queryFn);
   public read$ = (showId: string, songId: string): Observable<ShowSong | null> => this.dbService.doc$(`${this.collection}/${showId}/${this.subCollection}/${songId}`);
   public update$ = async (showId: string, songId: string, data: Partial<ShowSong>): Promise<void> =>
     await this.dbService.doc(`${this.collection}/${showId}/${this.subCollection}/${songId}`).update(data);

src/app/modules/shows/services/show-song.service.spec.ts

@@ -1,16 +1,135 @@
 import {TestBed} from '@angular/core/testing';
-
+import {BehaviorSubject, of} from 'rxjs';
+import {SongDataService} from '../../songs/services/song-data.service';
+import {UserService} from '../../../services/user/user.service';
+import {ShowService} from './show.service';
+import {ShowSongDataService} from './show-song-data.service';
 import {ShowSongService} from './show-song.service';
+import {ShowSong} from './show-song';
+import {Song} from '../../songs/services/song';
+import {Show} from './show';
+import {User} from '../../../services/user/user';
 
 describe('ShowSongService', () => {
   let service: ShowSongService;
+  let showSongDataServiceSpy: jasmine.SpyObj<ShowSongDataService>;
+  let songDataServiceSpy: jasmine.SpyObj<SongDataService>;
+  let userServiceSpy: jasmine.SpyObj<UserService>;
+  let showServiceSpy: jasmine.SpyObj<ShowService>;
+  let user$: BehaviorSubject<User | null>;
+  const song = {id: 'song-1', key: 'G', title: 'Amazing Grace'} as unknown as Song;
+  const showSong = {id: 'show-song-1', songId: 'song-1'} as unknown as ShowSong;
+  const show = {id: 'show-1', order: ['show-song-1', 'show-song-2']} as unknown as Show;
+
+  beforeEach(async () => {
+    user$ = new BehaviorSubject<User | null>({id: 'user-1', name: 'Benjamin', role: 'editor', chordMode: 'letters', songUsage: {}});
+    showSongDataServiceSpy = jasmine.createSpyObj<ShowSongDataService>('ShowSongDataService', ['add', 'read$', 'list$', 'delete', 'update$']);
+    songDataServiceSpy = jasmine.createSpyObj<SongDataService>('SongDataService', ['read$']);
+    userServiceSpy = jasmine.createSpyObj<UserService>('UserService', ['incSongCount', 'decSongCount'], {
+      user$: user$.asObservable(),
+    });
+    showServiceSpy = jasmine.createSpyObj<ShowService>('ShowService', ['read$', 'update$']);
+
+    showSongDataServiceSpy.add.and.resolveTo('show-song-2');
+    showSongDataServiceSpy.read$.and.returnValue(of(showSong));
+    showSongDataServiceSpy.list$.and.returnValue(of([showSong]));
+    showSongDataServiceSpy.delete.and.resolveTo();
+    showSongDataServiceSpy.update$.and.resolveTo();
+    songDataServiceSpy.read$.and.returnValue(of(song));
+    userServiceSpy.incSongCount.and.resolveTo();
+    userServiceSpy.decSongCount.and.resolveTo();
+    showServiceSpy.read$.and.returnValue(of(show));
+    showServiceSpy.update$.and.resolveTo();
+
+    await TestBed.configureTestingModule({
+      providers: [
+        {provide: ShowSongDataService, useValue: showSongDataServiceSpy},
+        {provide: SongDataService, useValue: songDataServiceSpy},
+        {provide: UserService, useValue: userServiceSpy},
+        {provide: ShowService, useValue: showServiceSpy},
+      ],
+    });
 
-  beforeEach(() => {
-    void TestBed.configureTestingModule({});
     service = TestBed.inject(ShowSongService);
   });
 
   it('should be created', () => {
-    void expect(service).toBeTruthy();
+    expect(service).toBeTruthy();
+  });
+
+  it('should create a show song from the song and current user', async () => {
+    await expectAsync(service.new$('show-1', 'song-1', true)).toBeResolvedTo('show-song-2');
+
+    expect(userServiceSpy.incSongCount).toHaveBeenCalledWith('song-1');
+    expect(showSongDataServiceSpy.add).toHaveBeenCalledWith('show-1', {
+      ...song,
+      songId: 'song-1',
+      key: 'G',
+      keyOriginal: 'G',
+      chordMode: 'letters',
+      addedLive: true,
+    });
+  });
+
+  it('should return null when the song is missing', async () => {
+    songDataServiceSpy.read$.and.returnValue(of(null));
+
+    await expectAsync(service.new$('show-1', 'song-1')).toBeResolvedTo(null);
+
+    expect(showSongDataServiceSpy.add).not.toHaveBeenCalled();
+    expect(userServiceSpy.incSongCount).not.toHaveBeenCalled();
+  });
+
+  it('should return null when the current user is missing', async () => {
+    user$.next(null);
+
+    await expectAsync(service.new$('show-1', 'song-1')).toBeResolvedTo(null);
+
+    expect(showSongDataServiceSpy.add).not.toHaveBeenCalled();
+    expect(userServiceSpy.incSongCount).not.toHaveBeenCalled();
+  });
+
+  it('should delegate reads to the data service', async () => {
+    await expectAsync(service.read('show-1', 'show-song-1')).toBeResolvedTo(showSong);
+    expect(showSongDataServiceSpy.read$).toHaveBeenCalledWith('show-1', 'show-song-1');
+  });
+
+  it('should delegate list access to the data service', async () => {
+    await expectAsync(service.list('show-1')).toBeResolvedTo([showSong]);
+    expect(showSongDataServiceSpy.list$).toHaveBeenCalledWith('show-1');
+  });
+
+  it('should delete a show song, update the order and decrement song usage', async () => {
+    await service.delete$('show-1', 'show-song-1', 0);
+
+    expect(showSongDataServiceSpy.delete).toHaveBeenCalledWith('show-1', 'show-song-1');
+    expect(showServiceSpy.update$).toHaveBeenCalledWith('show-1', {order: ['show-song-2']});
+    expect(userServiceSpy.decSongCount).toHaveBeenCalledWith('song-1');
+  });
+
+  it('should stop delete when the show is missing', async () => {
+    showServiceSpy.read$.and.returnValue(of(null));
+
+    await service.delete$('show-1', 'show-song-1', 0);
+
+    expect(showSongDataServiceSpy.delete).not.toHaveBeenCalled();
+    expect(showServiceSpy.update$).not.toHaveBeenCalled();
+    expect(userServiceSpy.decSongCount).not.toHaveBeenCalled();
+  });
+
+  it('should stop delete when the show song is missing', async () => {
+    showSongDataServiceSpy.read$.and.returnValue(of(null));
+
+    await service.delete$('show-1', 'show-song-1', 0);
+
+    expect(showSongDataServiceSpy.delete).not.toHaveBeenCalled();
+    expect(showServiceSpy.update$).not.toHaveBeenCalled();
+    expect(userServiceSpy.decSongCount).not.toHaveBeenCalled();
+  });
+
+  it('should delegate updates to the data service', async () => {
+    await service.update$('show-1', 'show-song-1', {title: 'Updated'} as never);
+
+    expect(showSongDataServiceSpy.update$).toHaveBeenCalledWith('show-1', 'show-song-1', {title: 'Updated'} as never);
   });
 });

src/app/modules/shows/services/show-song.service.ts

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {ShowSongDataService} from './show-song-data.service';
 import {firstValueFrom, Observable} from 'rxjs';
 import {ShowSong} from './show-song';
@@ -10,12 +10,10 @@ import {ShowService} from './show.service';
   providedIn: 'root',
 })
 export class ShowSongService {
-  public constructor(
+  private showSongDataService = inject(ShowSongDataService);
-    private showSongDataService: ShowSongDataService,
+  private songDataService = inject(SongDataService);
-    private songDataService: SongDataService,
+  private userService = inject(UserService);
-    private userService: UserService,
+  private showService = inject(ShowService);
-    private showService: ShowService
-  ) {}
 
   public async new$(showId: string, songId: string, addedLive = false): Promise<string | null> {
     const song = await firstValueFrom(this.songDataService.read$(songId));
@@ -40,14 +38,14 @@ export class ShowSongService {
   public list = (showId: string): Promise<ShowSong[]> => firstValueFrom(this.list$(showId));
 
   public async delete$(showId: string, showSongId: string, index: number): Promise<void> {
-    const showSong = await this.read(showId, showSongId);
+    const [showSong, show] = await Promise.all([this.read(showId, showSongId), firstValueFrom(this.showService.read$(showId))]);
-    await this.showSongDataService.delete(showId, showSongId);
-    const show = await firstValueFrom(this.showService.read$(showId));
     if (!show) return;
-    const order = show.order;
+    if (!showSong) return;
+
+    const order = [...show.order];
     order.splice(index, 1);
-    await this.showService.update$(showId, {order});
+
-    await this.userService.decSongCount(showSong.songId);
+    await Promise.all([this.showSongDataService.delete(showId, showSongId), this.showService.update$(showId, {order}), this.userService.decSongCount(showSong.songId)]);
   }
 
   public update$ = async (showId: string, songId: string, data: Partial<ShowSong>): Promise<void> => await this.showSongDataService.update$(showId, songId, data);

src/app/modules/shows/services/show.service.spec.ts

@@ -1,27 +1,102 @@
 import {TestBed} from '@angular/core/testing';
-
+import {BehaviorSubject, of} from 'rxjs';
-import {ShowService} from './show.service';
 import {ShowDataService} from './show-data.service';
+import {ShowService} from './show.service';
+import {UserService} from '../../../services/user/user.service';
 
 describe('ShowService', () => {
-  const mockShowDataService = {add: Promise.resolve(null)};
+  let service: ShowService;
-  beforeEach(
+  let showDataServiceSpy: jasmine.SpyObj<ShowDataService>;
-    () =>
+  let user$: BehaviorSubject<unknown>;
-      void TestBed.configureTestingModule({
+  const shows = [
-        providers: [{provide: ShowDataService, useValue: mockShowDataService}],
+    {id: 'show-1', owner: 'user-1', published: false, archived: false},
-      })
+    {id: 'show-2', owner: 'other-user', published: true, archived: false},
-  );
+    {id: 'show-3', owner: 'user-1', published: true, archived: true},
+  ] as never;
+
+  beforeEach(async () => {
+    user$ = new BehaviorSubject<unknown>({id: 'user-1'});
+    showDataServiceSpy = jasmine.createSpyObj<ShowDataService>('ShowDataService', ['read$', 'listPublicSince$', 'update', 'add'], {
+      list$: of(shows),
+    });
+    showDataServiceSpy.read$.and.returnValue(of(shows[0]));
+    showDataServiceSpy.listPublicSince$.and.returnValue(of([shows[1]]));
+    showDataServiceSpy.update.and.resolveTo();
+    showDataServiceSpy.add.and.resolveTo('new-show-id');
+
+    await TestBed.configureTestingModule({
+      providers: [
+        {provide: ShowDataService, useValue: showDataServiceSpy},
+        {provide: UserService, useValue: {user$: user$.asObservable()}},
+      ],
+    });
+
+    service = TestBed.inject(ShowService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+
+  it('should list published shows and own drafts, but exclude archived ones', done => {
+    service.list$().subscribe(result => {
+      expect(result.map(show => show.id)).toEqual(['show-1', 'show-2']);
+      done();
+    });
+  });
+
+  it('should filter out private drafts when publishedOnly is true', done => {
+    service.list$(true).subscribe(result => {
+      expect(result.map(show => show.id)).toEqual(['show-2']);
+      done();
+    });
+  });
+
+  it('should delegate public listing to the data service', done => {
+    service.listPublicSince$(6).subscribe(result => {
+      expect(result).toEqual([shows[1]]);
+      expect(showDataServiceSpy.listPublicSince$).toHaveBeenCalledWith(6);
+      done();
+    });
+  });
+
+  it('should delegate reads to the data service', done => {
+    service.read$('show-1').subscribe(result => {
+      expect(result).toEqual(shows[0]);
+      expect(showDataServiceSpy.read$).toHaveBeenCalledWith('show-1');
+      done();
+    });
+  });
+
+  it('should delegate updates to the data service', async () => {
+    await service.update$('show-1', {published: true});
+
+    expect(showDataServiceSpy.update).toHaveBeenCalledWith('show-1', {published: true});
+  });
+
+  it('should return null when creating a show without showType', async () => {
+    await expectAsync(service.new$({published: true})).toBeResolvedTo(null);
+
+    expect(showDataServiceSpy.add).not.toHaveBeenCalled();
+  });
+
+  it('should return null when no user is available for show creation', async () => {
+    user$.next(null);
+
+    await expectAsync(service.new$({showType: 'misc-public'})).toBeResolvedTo(null);
+
+    expect(showDataServiceSpy.add).not.toHaveBeenCalled();
+  });
 
   ShowService.SHOW_TYPE_PUBLIC.forEach(type => {
     it('should calc public flag for ' + type, async () => {
-      const service: ShowService = TestBed.inject(ShowService);
-      const addSpy = spyOn(TestBed.inject(ShowDataService), 'add').and.returnValue(Promise.resolve('id'));
-
       const id = await service.new$({showType: type});
 
-      void expect(id).toBe('id');
+      expect(id).toBe('new-show-id');
-      void expect(addSpy).toHaveBeenCalledWith({
+      expect(showDataServiceSpy.add).toHaveBeenCalledWith({
         showType: type,
+        owner: 'user-1',
+        order: [],
         public: true,
       });
     });
@@ -29,14 +104,13 @@ describe('ShowService', () => {
 
   ShowService.SHOW_TYPE_PRIVATE.forEach(type => {
     it('should calc private flag for ' + type, async () => {
-      const service: ShowService = TestBed.inject(ShowService);
-      const addSpy = spyOn(TestBed.inject(ShowDataService), 'add').and.returnValue(Promise.resolve('id'));
-
       const id = await service.new$({showType: type});
 
-      void expect(id).toBe('id');
+      expect(id).toBe('new-show-id');
-      void expect(addSpy).toHaveBeenCalledWith({
+      expect(showDataServiceSpy.add).toHaveBeenCalledWith({
         showType: type,
+        owner: 'user-1',
+        order: [],
         public: false,
       });
     });

src/app/modules/shows/services/show.service.ts

@@ -1,7 +1,7 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {ShowDataService} from './show-data.service';
 import {Show} from './show';
-import {Observable} from 'rxjs';
+import {firstValueFrom, Observable} from 'rxjs';
 import {UserService} from '../../../services/user/user.service';
 import {map, switchMap} from 'rxjs/operators';
 import {User} from '../../../services/user/user';
@@ -10,19 +10,15 @@ import {User} from '../../../services/user/user';
   providedIn: 'root',
 })
 export class ShowService {
+  private showDataService = inject(ShowDataService);
+  private userService = inject(UserService);
+
   public static SHOW_TYPE = ['service-worship', 'service-praise', 'home-group-big', 'home-group', 'prayer-group', 'teens-group', 'kids-group', 'misc-public', 'misc-private'];
   public static SHOW_TYPE_PUBLIC = ['service-worship', 'service-praise', 'home-group-big', 'teens-group', 'kids-group', 'misc-public'];
   public static SHOW_TYPE_PRIVATE = ['home-group', 'prayer-group', 'misc-private'];
-  private user: User | null = null;
-
-  public constructor(
-    private showDataService: ShowDataService,
-    private userService: UserService
-  ) {
-    userService.user$.subscribe(_ => (this.user = _));
-  }
 
   public read$ = (showId: string): Observable<Show | null> => this.showDataService.read$(showId);
+  public listPublicSince$ = (lastMonths: number): Observable<Show[]> => this.showDataService.listPublicSince$(lastMonths);
 
   public list$(publishedOnly = false): Observable<Show[]> {
     return this.userService.user$.pipe(
@@ -30,22 +26,18 @@ export class ShowService {
         () => this.showDataService.list$,
         (user: User | null, shows: Show[]) => ({user, shows})
       ),
-      map(s =>
+      map(s => s.shows.filter(show => !show.archived).filter(show => show.published || (show.owner === s.user?.id && !publishedOnly)))
-        s.shows
-          .sort((a, b) => a.date.toMillis() - b.date.toMillis())
-          .filter(_ => !_.archived)
-          .filter(show => show.published || (show.owner === s.user?.id && !publishedOnly))
-      )
     );
   }
 
   public update$ = async (showId: string, data: Partial<Show>): Promise<void> => this.showDataService.update(showId, data);
 
   public async new$(data: Partial<Show>): Promise<string | null> {
-    if (!data.showType || !this.user) return null;
+    const user = await firstValueFrom(this.userService.user$);
+    if (!data.showType || !user) return null;
     const calculatedData: Partial<Show> = {
       ...data,
-      owner: this.user.id,
+      owner: user.id,
       order: [],
       public: ShowService.SHOW_TYPE_PUBLIC.indexOf(data.showType) !== -1,
     };

src/app/modules/shows/services/show.ts

@@ -1,5 +1,4 @@
-import firebase from 'firebase/compat/app';
+import {Timestamp} from '@angular/fire/firestore';
-import Timestamp = firebase.firestore.Timestamp;
 
 export type PresentationBackground = 'none' | 'blue' | 'green' | 'leder' | 'praise' | 'bible';
 

src/app/modules/shows/show/show.component.html

@@ -1,4 +1,5 @@
-<div *ngIf="show$ | async as show">
+@if (show$ | async; as show) {
+  <div>
     <app-card
       [fullscreen]="useSwiper"
       closeLink="../"
@@ -6,12 +7,16 @@
       show.date.toDate() | date: 'dd.MM.yyyy'
     }} - {{ getStatus(show) }}"
       >
-    <p *ngIf="!useSwiper">{{ show.public ? 'öffentliche' : 'geschlossene' }} Veranstaltung von
+      @if (!useSwiper) {
+        <p>{{ show.public ? 'öffentliche' : 'geschlossene' }} Veranstaltung von
           <app-user-name [userId]="show.owner"></app-user-name>
         </p>
+      }
       <div class="head">
         <div>
-        <mat-checkbox *ngIf="!useSwiper" [(ngModel)]="showText">Text anzeigen</mat-checkbox>
+          @if (!useSwiper) {
+            <mat-checkbox [(ngModel)]="showText">Text anzeigen</mat-checkbox>
+          }
         </div>
         <div [class.floating]="useSwiper">
           <app-menu-button (click)="onZoomOut()" @fade [icon]="faZoomOut" class="btn-delete btn-icon"
@@ -19,18 +24,21 @@
           <app-menu-button (click)="onZoomIn()" @fade [icon]="faZoomIn" class="btn-delete btn-icon"
           matTooltip="Vergrößern"></app-menu-button>
           <app-menu-button (click)="useSwiper=!useSwiper;fullscreen(useSwiper)" @fade
-                         [icon]="useSwiper ? faFileLines : faFile" class="btn-delete btn-icon"
+            [icon]="useSwiper ? faRestore : faMaximize" class="btn-delete btn-icon"
-                         matTooltip="Swiper umschalten"></app-menu-button>
+          matTooltip="Vollbild"></app-menu-button>
         </div>
       </div>
-    <div (cdkDropListDropped)="drop($event, show)" *ngIf="showSongs && !useSwiper"
+      @if (showSongs && !useSwiper) {
+        <div (cdkDropListDropped)="drop($event, show)"
           [cdkDropListDisabled]="show.published || showText"
-         [style.cursor]="!(show.published || showText) ? 'drag' : 'inherit'"
+          [style.--song-key-column-width]="getSongKeyColumnWidth(show)"
           [style.font-size]="textSize + 'em'"
           cdkDropList
           class="song-list">
-      <div *ngFor="let song of orderedShowSongs(show); let i = index; trackBy: trackBy" cdkDrag class="song-row">
+          @for (song of orderedShowSongs(show); track trackBy(i, song); let i = $index) {
+            <div cdkDrag class="song-row">
               <app-song
+                [dragHandle]="!(show.published || showText)"
                 [fullscreen]="useSwiper"
                 [index]="i"
                 [showId]="showId"
@@ -39,10 +47,13 @@
                 [show]="show"
               ></app-song>
             </div>
+          }
         </div>
-
+      }
-    <swiper-container *ngIf="useSwiper" scrollbar="true">
+      @if (useSwiper) {
-      <swiper-slide *ngFor="let song of orderedShowSongs(show); let i = index; trackBy: trackBy"
+        <swiper-container scrollbar="true">
+          @for (song of orderedShowSongs(show); track trackBy(i, song); let i = $index) {
+            <swiper-slide
               [style.font-size]="textSize + 'em'"
               class="song-swipe">
               <app-song
@@ -53,43 +64,61 @@
                 [showText]="true"
                 [show]="show"
               ></app-song>
-        <div *ngIf="getNextSong(orderedShowSongs(show), i) as next" class="next-song">{{ next }}
+              <div class="time">{{ currentTime | date: 'HH:mm' }}</div>
+              @if (getNextSong(orderedShowSongs(show), i); as next) {
+                <div class="next-song">{{ next }}
                   <fa-icon [icon]="faNextSong"></fa-icon>
                 </div>
+              }
             </swiper-slide>
+          }
         </swiper-container>
-
+      }
+      @if (songs$ | async; as songs) {
+        @if (songs && !show.published && !useSwiper) {
           <app-add-song
-      *ngIf="songs && !show.published && !useSwiper"
             [showSongs]="showSongs"
             [show]="show"
             [songs]="songs"
           ></app-add-song>
-
+        }
-    <app-button-row *ngIf="!useSwiper">
+      }
+      @if (!useSwiper) {
+        <app-button-row>
           <ng-container *appRole="['leader']">
             <ng-container *appOwner="show.owner">
-          <app-button (click)="onArchive(true)" *ngIf="!show.archived" [icon]="faBox">
+              @if (!show.archived) {
+                <app-button (click)="onArchive(true)" [icon]="faBox">
                   Archivieren
                 </app-button>
-          <app-button (click)="onArchive(false)" *ngIf="show.archived" [icon]="faBoxOpen">
+              }
+              @if (show.archived) {
+                <app-button (click)="onArchive(false)" [icon]="faBoxOpen">
                   Wiederherstellen
                 </app-button>
-          <app-button (click)="onPublish(true)" *ngIf="!show.published" [icon]="faPublish">
+              }
+              @if (!show.published) {
+                <app-button (click)="onPublish(true)" [icon]="faPublish">
                   Veröffentlichen
                 </app-button>
-          <app-button (click)="onPublish(false)" *ngIf="show.published" [icon]="faUnpublish">
+              }
+              @if (show.published) {
+                <app-button (click)="onPublish(false)" [icon]="faUnpublish">
                   Veröffentlichung zurückziehen
                 </app-button>
-          <app-button (click)="onShare(show)" *ngIf="show.published" [icon]="faShare">
+              }
+              @if (show.published) {
+                <app-button (click)="onShare(show)" [icon]="faShare">
                   Teilen
                 </app-button>
-          <app-button (click)="onChange(show.id)" *ngIf="!show.published" [icon]="faSliders">
+              }
+              @if (!show.published) {
+                <app-button (click)="onChange(show.id)" [icon]="faSliders">
                   Ändern
                 </app-button>
+              }
             </ng-container>
           </ng-container>
-
           <app-button [icon]="faDownload" [matMenuTriggerFor]="menu">
             Herunterladen
           </app-button>
@@ -102,5 +131,7 @@
             </app-button>
           </mat-menu>
         </app-button-row>
+      }
     </app-card>
-</div>
+  </div>
+}

src/app/modules/shows/show/show.component.less

@@ -5,7 +5,7 @@
 
 .song-row:not(:last-child) {
   display: block;
-  border-bottom: 1px solid #0002;
+  border-bottom: 1px solid var(--divider);
 }
 
 .song-swipe {
@@ -21,9 +21,10 @@
 }
 
 .cdk-drag-preview {
-  background-color: white;
+  background-color: var(--surface-strong);
   box-sizing: border-box;
   border-radius: 4px;
+  border: 1px solid var(--surface-border);
   box-shadow: 0 5px 5px -3px rgba(0, 0, 0, 0.2), 0 8px 10px 1px rgba(0, 0, 0, 0.14), 0 3px 14px 2px rgba(0, 0, 0, 0.12);
 }
 
@@ -51,7 +52,7 @@
 }
 
 .next-song {
-  color: #0008;
+  color: var(--text-muted);
   position: fixed;
   bottom: 0;
   right: 10px;
@@ -60,3 +61,10 @@
     padding: 6px;
   }
 }
+
+.time {
+  color: var(--text-muted);
+  position: fixed;
+  bottom: 0;
+  left: 10px;
+}

src/app/modules/shows/show/show.component.ts

@@ -1,8 +1,8 @@
-import {ChangeDetectorRef, Component, CUSTOM_ELEMENTS_SCHEMA, HostListener, OnDestroy, OnInit} from '@angular/core';
+import {ChangeDetectorRef, Component, CUSTOM_ELEMENTS_SCHEMA, HostListener, OnDestroy, OnInit, inject} from '@angular/core';
-import {filter, map, switchMap, tap} from 'rxjs/operators';
+import {filter, map, shareReplay, switchMap, tap} from 'rxjs/operators';
 import {ActivatedRoute, Router} from '@angular/router';
 import {ShowService} from '../services/show.service';
-import {Observable, Subscription} from 'rxjs';
+import {Observable, of, Subscription} from 'rxjs';
 import {Show} from '../services/show';
 import {SongService} from '../../songs/services/song.service';
 import {Song} from '../../songs/services/song';
@@ -14,12 +14,12 @@ import {
   faBox,
   faBoxOpen,
   faChevronRight,
-  faFile,
   faFileDownload,
-  faFileLines,
   faLock,
   faMagnifyingGlassMinus,
   faMagnifyingGlassPlus,
+  faMaximize,
+  faMinimize,
   faSliders,
   faUnlock,
   faUser,
@@ -32,7 +32,7 @@ import {ArchiveDialogComponent} from '../dialog/archive-dialog/archive-dialog.co
 import {closeFullscreen, openFullscreen} from '../../../services/fullscreen';
 import {GuestShowService} from '../../guest/guest-show.service';
 import {ShareDialogComponent} from '../dialog/share-dialog/share-dialog.component';
-import {AsyncPipe, DatePipe, NgFor, NgIf} from '@angular/common';
+import {AsyncPipe, DatePipe} from '@angular/common';
 import {CardComponent} from '../../../widget-modules/components/card/card.component';
 import {UserNameComponent} from '../../../services/user/user-name/user-name.component';
 import {MatCheckbox} from '@angular/material/checkbox';
@@ -56,7 +56,6 @@ import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/s
   animations: [fade],
   schemas: [CUSTOM_ELEMENTS_SCHEMA],
   imports: [
-    NgIf,
     CardComponent,
     UserNameComponent,
     MatCheckbox,
@@ -65,7 +64,6 @@ import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/s
     MenuButtonComponent,
     MatTooltip,
     CdkDropList,
-    NgFor,
     CdkDrag,
     SongComponent,
     FaIconComponent,
@@ -82,8 +80,18 @@ import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/s
   ],
 })
 export class ShowComponent implements OnInit, OnDestroy {
+  private activatedRoute = inject(ActivatedRoute);
+  private showService = inject(ShowService);
+  private songService = inject(SongService);
+  private showSongService = inject(ShowSongService);
+  private docxService = inject(DocxService);
+  private router = inject(Router);
+  private cRef = inject(ChangeDetectorRef);
+  public dialog = inject(MatDialog);
+  private guestShowService = inject(GuestShowService);
+
   public show$: Observable<Show | null> | null = null;
-  public songs: Song[] | null = null;
+  public songs$: Observable<Song[] | null> | null = null;
   public showSongs: ShowSong[] | null = null;
   public showId: string | null = null;
   public showText = false;
@@ -101,29 +109,26 @@ export class ShowComponent implements OnInit, OnDestroy {
   public faZoomOut = faMagnifyingGlassMinus;
   public useSwiper = false;
   public textSize = 1;
-  public faFileLines = faFileLines;
+  public faRestore = faMinimize;
-  public faFile = faFile;
+  public faMaximize = faMaximize;
   public faNextSong = faChevronRight;
+  public currentTime: Date;
   private subs: Subscription[] = [];
 
-  public constructor(
-    private activatedRoute: ActivatedRoute,
-    private showService: ShowService,
-    private songService: SongService,
-    private showSongService: ShowSongService,
-    private docxService: DocxService,
-    private router: Router,
-    private cRef: ChangeDetectorRef,
-    public dialog: MatDialog,
-    private guestShowService: GuestShowService
-  ) {}
-
   public ngOnInit(): void {
+    this.currentTime = new Date();
+    setInterval(() => {
+      this.currentTime = new Date();
+    }, 10000);
     this.show$ = this.activatedRoute.params.pipe(
       map(param => param as {showId: string}),
       map(param => param.showId),
       tap((_: string) => (this.showId = _)),
-      switchMap((showId: string) => this.showService.read$(showId))
+      switchMap((showId: string) => this.showService.read$(showId)),
+      shareReplay({
+        bufferSize: 1,
+        refCount: true,
+      })
     );
     this.subs.push(
       this.activatedRoute.params
@@ -136,13 +141,14 @@ export class ShowComponent implements OnInit, OnDestroy {
         .subscribe(_ => {
           this.showSongs = _;
           this.cRef.markForCheck();
-        }),
+        })
-      this.songService
+    );
-        .list$()
+
-        .pipe(filter(_ => !!_))
+    this.songs$ = this.show$.pipe(
-        .subscribe(_ => {
+      switchMap(show => (show && !show.published ? this.songService.list$() : of(null))),
-          this.songs = _;
+      shareReplay({
-          this.cRef.markForCheck();
+        bufferSize: 1,
+        refCount: true,
       })
     );
   }
@@ -212,7 +218,8 @@ export class ShowComponent implements OnInit, OnDestroy {
   public orderedShowSongs(show: Show): ShowSong[] {
     const list = this.showSongs;
     if (!list) return [];
-    return show.order.map(_ => list.filter(f => f.id === _)[0]);
+    const byId = new Map(list.map(item => [item.id, item] as const));
+    return show.order.map(id => byId.get(id)).filter((song): song is ShowSong => !!song);
   }
 
   public trackBy = (_: number, show: ShowSong) => show?.id;
@@ -223,6 +230,7 @@ export class ShowComponent implements OnInit, OnDestroy {
 
   @HostListener('document:keydown', ['$event'])
   public handleKeyboardEvent(event: KeyboardEvent) {
+    if (!this.useSwiper) return;
     const swiperEl = document.querySelector('swiper-container') as unknown as Swiper;
     switch (event.code) {
       case 'ArrowRight':
@@ -237,6 +245,7 @@ export class ShowComponent implements OnInit, OnDestroy {
   }
 
   public fullscreen(useSwiper: boolean) {
+    this.textSize = useSwiper ? 2 : 1;
     if (useSwiper) openFullscreen();
     else closeFullscreen();
   }
@@ -246,6 +255,20 @@ export class ShowComponent implements OnInit, OnDestroy {
     const song = showSongs[i + 1];
     return song?.title ?? '';
   }
+
+  public getSongKeyColumnWidth(show: Show): string {
+    const labels = this.orderedShowSongs(show).map(song => {
+      if (song.keyOriginal && song.keyOriginal !== song.key) {
+        return `${song.keyOriginal} -> ${song.key}`;
+      }
+
+      return song.key ?? '';
+    });
+
+    const longestLabelLength = labels.reduce((max, label) => Math.max(max, label.length), 0);
+    const widthInCh = Math.max(3, longestLabelLength);
+    return `${widthInCh}ch`;
+  }
 }
 
 export interface Swiper {

src/app/modules/shows/show/song/song.component.html

@@ -1,27 +1,87 @@
-<div *ngIf="iSong && iSong && show">
+@if (iSong && iSong && show) {
-  <div *ngIf="show.published || fullscreen" class="title published">
+  <div>
+    @if (show.published || fullscreen) {
+      <div class="title published">
         <div class="key">{{ iSong.key }}</div>
         <div>{{ iSong.title }}</div>
       </div>
-
+    }
-  <div *ngIf="!show.published && !fullscreen" class="song">
+    @if (!show.published && !fullscreen) {
+      <div
+        class="song"
+        [class.show-text-layout]="!!showText"
+        [class.compact-layout]="!showText"
+        [class.with-drag]="dragHandle && !edit"
+      >
+        @if (dragHandle && !edit) {
+          <button
+            aria-label="Lied verschieben"
+            cdkDragHandle
+            class="drag-handle"
+            type="button"
+          ></button>
+        }
         <span class="title">{{ iSong.title }}</span>
-    <span *ngIf="!edit" class="keys">
+        @if (!edit) {
-      <span *ngIf="iSong.keyOriginal !== iSong.key">{{ iSong.keyOriginal }}&nbsp;→&nbsp;</span><span
+          <div class="keys-container">
-      (click)="openKeySelect()">{{ iSong.key }}</span>
+            <div (click)="openKeySelect()" class="keys">
-      <mat-form-field (click)="option.open()" *ngIf="keys" class="transpose">
+              @if (iSong.keyOriginal !== iSong.key) {
-        <mat-select #option [formControl]="keyFormControl">
+                <span>{{ iSong.keyOriginal }}&nbsp;→&nbsp;</span>
-          <mat-option *ngFor="let key of keys" [value]="key">{{ key }}</mat-option>
+              }
+              <span>{{ iSong.key }}</span>
+            </div>
+          </div>
+        }
+        @if (!edit) {
+          <app-menu-button (click)="onEdit()" [icon]="faEdit" class="btn-edit btn-icon"
+                           matTooltip="Lied für diese Veranstaltung bearbeiten"></app-menu-button>
+        }
+        @if (!edit) {
+          <app-menu-button (click)="onDelete()" [icon]="faDelete" class="btn-delete btn-icon"
+                           matTooltip="Lied aus Veranstaltung entfernen"></app-menu-button>
+        }
+      </div>
+      @if (!edit) {
+        <div
+          aria-hidden="true"
+          class="song select"
+          [class.show-text-layout]="!!showText"
+          [class.compact-layout]="!showText"
+          [class.with-drag]="dragHandle"
+        >
+          @if (dragHandle) {
+            <span class="drag-handle-placeholder"></span>
+          }
+          @if (!showText) {
+            <span class="keys">
+              <mat-form-field class="keys-select">
+                <mat-select #option [formControl]="keyFormControl" tabIndex="-1">
+                  @for (key of keys; track key) {
+                    <mat-option [value]="key">{{ key }}</mat-option>
+                  }
                 </mat-select>
               </mat-form-field>
             </span>
-    <app-menu-button (click)="onEdit()" *ngIf="!edit" [icon]="faEdit" class="btn-edit btn-icon"
+            <span class="title"></span>
-                     matTooltip="Lied für diese Veranstaltung bearbeiten"></app-menu-button>
+          } @else {
-    <app-menu-button (click)="onDelete()" *ngIf="!edit" [icon]="faDelete" class="btn-delete btn-icon"
+            <span class="title"></span>
-                     matTooltip="Lied aus Veranstaltung entfernen"></app-menu-button>
+            <span class="keys">
+              <mat-form-field class="keys-select">
+                <mat-select #option [formControl]="keyFormControl" tabIndex="-1">
+                  @for (key of keys; track key) {
+                    <mat-option [value]="key">{{ key }}</mat-option>
+                  }
+                </mat-select>
+              </mat-form-field>
+            </span>
+          }
+          <span class="btn-edit"></span>
+          <span class="btn-delete"></span>
         </div>
-
+      }
-  <mat-form-field *ngIf="edit" appearance="outline">
+    }
+    @if (edit) {
+      <mat-form-field appearance="outline">
         <mat-label>Songtext</mat-label>
         <textarea [cdkTextareaAutosize]="true"
                   [formControl]="editSongControl"
@@ -30,18 +90,24 @@
                   matTooltip="Tonart ändern"
         ></textarea>
       </mat-form-field>
-  <div *ngIf="edit">Es wird nur der Liedtext für dieser Veranstaltung geändert.</div>
+    }
-  <app-button-row *ngIf="edit">
+    @if (edit) {
+      <div>Es wird nur der Liedtext für dieser Veranstaltung geändert.</div>
+    }
+    @if (edit) {
+      <app-button-row>
         <app-button (click)="onSave()" [icon]="faSave">Speichern</app-button>
         <app-button (click)="onDiscard()" [icon]="faEraser">Verwerfen</app-button>
       </app-button-row>
-
+    }
+    @if (!edit && (showText)) {
       <app-song-text
         (chordModeChanged)="onChordModeChanged($event)"
-    *ngIf="!edit && (showText )"
         [chordMode]="iSong.chordMode"
         [showSwitch]="!show.published"
         [text]="iSong.text"
         [transpose]="{ baseKey: iSong.keyOriginal, targetKey: iSong.key }"
       ></app-song-text>
-</div>
+    }
+  </div>
+}

src/app/modules/shows/show/song/song.component.less

@@ -1,12 +1,10 @@
 
 .song {
+  &:not(.select) {
     min-height: 28px;
-  display: grid;
-  grid-template-columns: auto 70px 25px 25px;
-  @media screen and (max-width: 860px) {
-    grid-template-columns: auto 70px 45px 45px;
   }
-  grid-template-areas: "title keys edit delete";
+
+  display: grid;
 
   & > * {
     display: flex;
@@ -14,12 +12,109 @@
   }
 
   overflow: hidden;
+
+  &.compact-layout {
+    grid-template-columns: var(--song-key-column-width, 30px) auto 25px 25px;
+    grid-template-areas: "keys title edit delete";
+
+    @media screen and (max-width: 860px) {
+      grid-template-columns: var(--song-key-column-width, 30px) auto 45px 45px;
+    }
+
+    &.with-drag {
+      grid-template-columns: 24px var(--song-key-column-width, 30px) auto 25px 25px;
+      grid-template-areas: "drag keys title edit delete";
+
+      @media screen and (max-width: 860px) {
+        grid-template-columns: 24px var(--song-key-column-width, 30px) auto 45px 45px;
+      }
+    }
+  }
+
+  &.show-text-layout {
+    grid-template-columns: auto var(--song-key-column-width, 30px) 25px 25px;
+    grid-template-areas: "title keys edit delete";
+
+    @media screen and (max-width: 860px) {
+      grid-template-columns: auto var(--song-key-column-width, 30px) 45px 45px;
+    }
+
+    &.with-drag {
+      grid-template-columns: 24px auto var(--song-key-column-width, 30px) 25px 25px;
+      grid-template-areas: "drag title keys edit delete";
+
+      @media screen and (max-width: 860px) {
+        grid-template-columns: 24px auto var(--song-key-column-width, 30px) 45px 45px;
+      }
+    }
+  }
+}
+
+.drag-handle,
+.drag-handle-placeholder {
+  grid-area: drag;
+}
+
+.drag-handle {
+  width: 16px;
+  height: 36px;
+  padding: 4px 0;
+  border: 0;
+  background: transparent;
+  cursor: grab;
+  justify-self: start;
+  position: relative;
+
+  &::before {
+    content: "";
+    width: 10px;
+    height: 18px;
+    display: block;
+    border-radius: 999px;
+    background-image: radial-gradient(circle, var(--text-soft) 1.2px, transparent 1.3px),
+    radial-gradient(circle, var(--text-soft) 1.2px, transparent 1.3px);
+    background-position: 0 0, 6px 0;
+    background-size: 6px 6px;
+    background-repeat: repeat-y;
+    opacity: 0.65;
+    transition: var(--transition);
+  }
+
+  &:hover::before {
+    opacity: 1;
+    background-image: radial-gradient(circle, var(--primary-color) 1.2px, transparent 1.3px),
+    radial-gradient(circle, var(--primary-color) 1.2px, transparent 1.3px);
+  }
+
+  &:active {
+    cursor: grabbing;
+  }
+}
+
+.drag-handle-placeholder {
+  width: 16px;
+}
+
+.keys-container {
+  display: flex;
+  flex-direction: column;
+}
+
+.keys-select {
+  height: 0;
+  overflow: hidden;
+  line-height: 0;
+  min-width: max(100px, var(--song-key-column-width, 30px));
 }
 
 .keys {
+  display: flex;
+  align-items: center;
   position: relative;
   margin-right: 10px;
   cursor: pointer;
+  flex-grow: 0;
+  height: 100%;
 
   &:hover {
     color: var(--color-primary);
@@ -41,6 +136,7 @@
 
 .title {
   grid-area: title;
+  min-width: 0;
 
   &.published {
     margin: 10px 0;
@@ -49,8 +145,8 @@
     grid-template-columns: 1em auto;
 
     .key {
-      color: #00b;
+      color: var(--primary-active);
-      text-shadow: 0 0 1px #00b;
+      text-shadow: 0 0 1px var(--primary-hover);
     }
   }
 }

src/app/modules/shows/show/song/song.component.ts

@@ -1,4 +1,4 @@
-import {Component, Input, OnInit, ViewChild} from '@angular/core';
+import {Component, Input, OnInit, ViewChild, inject} from '@angular/core';
 import {ShowSongService} from '../../services/show-song.service';
 import {ShowSong} from '../../services/show-song';
 import {getScale} from '../../../songs/services/key.helper';
@@ -8,7 +8,7 @@ import {Show} from '../../services/show';
 import {faEraser, faPenToSquare, faSave, faTrash} from '@fortawesome/free-solid-svg-icons';
 import {fade} from '../../../../animations';
 import {MatSelect} from '@angular/material/select';
-import {NgFor, NgIf} from '@angular/common';
+
 import {MatFormField, MatLabel} from '@angular/material/form-field';
 import {MatOption} from '@angular/material/core';
 import {MenuButtonComponent} from '../../../../widget-modules/components/menu-button/menu-button.component';
@@ -17,6 +17,7 @@ import {MatInput} from '@angular/material/input';
 import {CdkTextareaAutosize} from '@angular/cdk/text-field';
 import {ButtonRowComponent} from '../../../../widget-modules/components/button-row/button-row.component';
 import {ButtonComponent} from '../../../../widget-modules/components/button/button.component';
+import {CdkDragHandle} from '@angular/cdk/drag-drop';
 
 @Component({
   selector: 'app-song',
@@ -24,11 +25,9 @@ import {ButtonComponent} from '../../../../widget-modules/components/button/butt
   styleUrls: ['./song.component.less'],
   animations: [fade],
   imports: [
-    NgIf,
     MatFormField,
     MatSelect,
     ReactiveFormsModule,
-    NgFor,
     MatOption,
     MenuButtonComponent,
     MatTooltip,
@@ -38,12 +37,16 @@ import {ButtonComponent} from '../../../../widget-modules/components/button/butt
     ButtonRowComponent,
     ButtonComponent,
     SongTextComponent,
+    CdkDragHandle,
   ],
 })
 export class SongComponent implements OnInit {
+  private showSongService = inject(ShowSongService);
+
   @Input() public show: Show | null = null;
   @Input() public showId: string | null = null;
   @Input() public showText: boolean | null = null;
+  @Input() public dragHandle = false;
   @Input() public index = -1;
   @Input() public fullscreen = false;
   public keys: string[] = [];
@@ -57,8 +60,6 @@ export class SongComponent implements OnInit {
   public editSongControl = new UntypedFormControl();
   @ViewChild('option') private keyOptions: MatSelect;
 
-  public constructor(private showSongService: ShowSongService) {}
-
   @Input()
   public set showSong(song: ShowSong) {
     this.iSong = song;

src/app/modules/songs/services/chord.ts

@@ -1,7 +1,29 @@
+export interface ChordAddDescriptor {
+  raw: string;
+  quality: 'major' | 'minor' | 'diminished' | 'augmented' | null;
+  extensions: string[];
+  additions: string[];
+  suspensions: string[];
+  alterations: string[];
+  modifiers: string[];
+}
+
+export interface ChordValidationIssue {
+  lineNumber: number;
+  lineText: string;
+  token: string;
+  suggestion: string | null;
+  reason: 'alias' | 'minor_format' | 'major_format' | 'invalid_suffix' | 'unknown_token' | 'tab_character';
+  message: string;
+}
+
 export interface Chord {
   chord: string;
   length: number;
   position: number;
   slashChord: string | null;
   add: string | null;
+  addDescriptor?: ChordAddDescriptor | null;
+  prefix?: string;
+  suffix?: string;
 }

src/app/modules/songs/services/file-data.service.spec.ts

@@ -1,12 +1,68 @@
 import {TestBed} from '@angular/core/testing';
-
+import {of} from 'rxjs';
+import {DbService} from '../../../services/db.service';
 import {FileDataService} from './file-data.service';
 
 describe('FileDataService', () => {
-  beforeEach(() => void TestBed.configureTestingModule({}));
+  let service: FileDataService;
+  let filesCollectionValueChangesSpy: jasmine.Spy;
+  let filesCollectionAddSpy: jasmine.Spy;
+  let songDocCollectionSpy: jasmine.Spy;
+  let songDocSpy: jasmine.Spy;
+  let fileDeleteSpy: jasmine.Spy;
+  let dbServiceSpy: jasmine.SpyObj<DbService>;
+
+  beforeEach(async () => {
+    filesCollectionValueChangesSpy = jasmine.createSpy('valueChanges').and.returnValue(of([{id: 'file-1', name: 'plan.pdf'}]));
+    filesCollectionAddSpy = jasmine.createSpy('add').and.resolveTo({id: 'file-2'});
+    songDocCollectionSpy = jasmine.createSpy('collection').and.returnValue({
+      add: filesCollectionAddSpy,
+      valueChanges: filesCollectionValueChangesSpy,
+    });
+    songDocSpy = jasmine.createSpy('songDoc').and.callFake((path: string) => {
+      if (path.includes('/files/')) {
+        return {delete: fileDeleteSpy};
+      }
+
+      return {collection: songDocCollectionSpy};
+    });
+    fileDeleteSpy = jasmine.createSpy('delete').and.resolveTo();
+    dbServiceSpy = jasmine.createSpyObj<DbService>('DbService', ['doc']);
+    dbServiceSpy.doc.and.callFake(songDocSpy);
+
+    await TestBed.configureTestingModule({
+      providers: [{provide: DbService, useValue: dbServiceSpy}],
+    });
+
+    service = TestBed.inject(FileDataService);
+  });
 
   it('should be created', () => {
-    const service: FileDataService = TestBed.inject(FileDataService);
+    expect(service).toBeTruthy();
-    void expect(service).toBeTruthy();
+  });
+
+  it('should add files to the song files subcollection and return the generated id', async () => {
+    const file = {name: 'setlist.pdf', path: 'songs/song-1/files', createdAt: new Date()};
+
+    await expectAsync(service.set('song-1', file)).toBeResolvedTo('file-2');
+
+    expect(songDocSpy).toHaveBeenCalledWith('songs/song-1');
+    expect(songDocCollectionSpy).toHaveBeenCalledWith('files');
+    expect(filesCollectionAddSpy).toHaveBeenCalledWith(file);
+  });
+
+  it('should delete files from the nested file document path', async () => {
+    await service.delete('song-4', 'file-9');
+
+    expect(songDocSpy).toHaveBeenCalledWith('songs/song-4/files/file-9');
+    expect(fileDeleteSpy).toHaveBeenCalled();
+  });
+
+  it('should read files from the files subcollection with the id field attached', () => {
+    service.read$('song-3').subscribe();
+
+    expect(songDocSpy).toHaveBeenCalledWith('songs/song-3');
+    expect(songDocCollectionSpy).toHaveBeenCalledWith('files');
+    expect(filesCollectionValueChangesSpy).toHaveBeenCalledWith({idField: 'id'});
   });
 });

src/app/modules/songs/services/file-data.service.ts

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {File} from './file';
 import {Observable} from 'rxjs';
 import {FileServer} from './fileServer';
@@ -8,7 +8,7 @@ import {DbService} from '../../../services/db.service';
   providedIn: 'root',
 })
 export class FileDataService {
-  public constructor(private db: DbService) {}
+  private db = inject(DbService);
 
   public async set(songId: string, file: FileServer): Promise<string> {
     const songRef = this.db.doc('songs/' + songId);

src/app/modules/songs/services/file.service.spec.ts

@@ -1,16 +1,48 @@
 import {TestBed} from '@angular/core/testing';
-
+import {Storage} from '@angular/fire/storage';
+import {FileDataService} from './file-data.service';
 import {FileService} from './file.service';
 
 describe('FileService', () => {
   let service: FileService;
+  let fileDataServiceSpy: jasmine.SpyObj<FileDataService>;
+  type FileServiceInternals = FileService & {
+    resolveDownloadUrl: (path: string) => Promise<string>;
+    deleteFromStorage: (path: string) => Promise<void>;
+  };
+
+  beforeEach(async () => {
+    fileDataServiceSpy = jasmine.createSpyObj<FileDataService>('FileDataService', ['delete']);
+    fileDataServiceSpy.delete.and.resolveTo();
+
+    await TestBed.configureTestingModule({
+      providers: [
+        {provide: Storage, useValue: {app: 'test-storage'}},
+        {provide: FileDataService, useValue: fileDataServiceSpy},
+      ],
+    });
 
-  beforeEach(() => {
-    void TestBed.configureTestingModule({});
     service = TestBed.inject(FileService);
   });
 
   it('should be created', () => {
-    void expect(service).toBeTruthy();
+    expect(service).toBeTruthy();
+  });
+
+  it('should resolve download urls via AngularFire storage helpers', async () => {
+    const resolveSpy = spyOn(service as FileServiceInternals, 'resolveDownloadUrl').and.resolveTo('https://cdn.example/file.pdf');
+
+    await expectAsync(service.getDownloadUrl('songs/song-1/file.pdf').toPromise()).toBeResolvedTo('https://cdn.example/file.pdf');
+
+    expect(resolveSpy).toHaveBeenCalledWith('songs/song-1/file.pdf');
+  });
+
+  it('should delete the file from storage and metadata from firestore', async () => {
+    const deleteFromStorageSpy = spyOn(service as FileServiceInternals, 'deleteFromStorage').and.resolveTo();
+
+    await service.delete('songs/song-1/file.pdf', 'song-1', 'file-1');
+
+    expect(deleteFromStorageSpy).toHaveBeenCalledWith('songs/song-1/file.pdf');
+    expect(fileDataServiceSpy.delete).toHaveBeenCalledWith('song-1', 'file-1');
   });
 });

src/app/modules/songs/services/file.service.ts

@@ -1,25 +1,30 @@
-import {Injectable} from '@angular/core';
+import {EnvironmentInjector, inject, Injectable, runInInjectionContext} from '@angular/core';
-import {AngularFireStorage} from '@angular/fire/compat/storage';
+import {deleteObject, getDownloadURL, ref, Storage} from '@angular/fire/storage';
-import {firstValueFrom, Observable} from 'rxjs';
+import {from, Observable} from 'rxjs';
 import {FileDataService} from './file-data.service';
 
 @Injectable({
   providedIn: 'root',
 })
 export class FileService {
-  public constructor(
+  private storage = inject(Storage);
-    private storage: AngularFireStorage,
+  private fileDataService = inject(FileDataService);
-    private fileDataService: FileDataService
+  private environmentInjector = inject(EnvironmentInjector);
-  ) {}
 
   public getDownloadUrl(path: string): Observable<string> {
-    const ref = this.storage.ref(path);
+    return from(runInInjectionContext(this.environmentInjector, () => this.resolveDownloadUrl(path)));
-    return ref.getDownloadURL() as Observable<string>;
   }
 
   public delete(path: string, songId: string, fileId: string): void {
-    const ref = this.storage.ref(path);
+    void runInInjectionContext(this.environmentInjector, () => this.deleteFromStorage(path));
-    void firstValueFrom(ref.delete());
     void this.fileDataService.delete(songId, fileId);
   }
+
+  private resolveDownloadUrl(path: string): Promise<string> {
+    return getDownloadURL(ref(this.storage, path));
+  }
+
+  private deleteFromStorage(path: string): Promise<void> {
+    return deleteObject(ref(this.storage, path));
+  }
 }

src/app/modules/songs/services/key.helper.spec.ts

@@ -0,0 +1,15 @@
+import {getScale, scaleMapping} from './key.helper';
+
+describe('key.helper', () => {
+  it('should render Gb correctly', () => {
+    void expect(scaleMapping['Gb']).toBe('G♭');
+  });
+
+  it('should expose a sharp-based scale for D', () => {
+    void expect(getScale('D')).toEqual(['C', 'C#', 'D', 'D#', 'E', 'F', 'F#', 'G', 'G#', 'A', 'A#', 'H']);
+  });
+
+  it('should keep flat-based spelling for Db', () => {
+    void expect(getScale('Db')).toEqual(['C', 'Db', 'D', 'Eb', 'E', 'F', 'Gb', 'G', 'Ab', 'A', 'B', 'H']);
+  });
+});

src/app/modules/songs/services/key.helper.ts

@@ -82,7 +82,7 @@ const scaleAssignment: {[key: string]: string[]} = {
   C: KEYS_MAJOR_FLAT,
   'C#': KEYS_MAJOR_FLAT,
   Db: KEYS_MAJOR_B,
-  D: KEYS_MAJOR_B,
+  D: KEYS_MAJOR_FLAT,
   'D#': KEYS_MAJOR_FLAT,
   Eb: KEYS_MAJOR_B,
   E: KEYS_MAJOR_FLAT,
@@ -125,7 +125,7 @@ export const scaleMapping: {[key: string]: string} = {
   E: 'E',
   F: 'F',
   'F#': 'F♯',
-  Gb: 'D♭',
+  Gb: 'G♭',
   G: 'G',
   'G#': 'G♯',
   Ab: 'A♭',

src/app/modules/songs/services/line.ts

@@ -5,4 +5,5 @@ export interface Line {
   type: LineType;
   text: string;
   chords: Chord[] | null;
+  lineNumber?: number;
 }

src/app/modules/songs/services/song-data.service.spec.ts

@@ -1,35 +1,104 @@
 import {TestBed} from '@angular/core/testing';
-
+import {firstValueFrom, Subject} from 'rxjs';
+import {take, toArray} from 'rxjs/operators';
+import {DbService} from '../../../services/db.service';
 import {SongDataService} from './song-data.service';
-import {AngularFirestore} from '@angular/fire/compat/firestore';
-import {firstValueFrom, of} from 'rxjs';
 
 describe('SongDataService', () => {
-  const songs = [{title: 'title1'}];
+  let service: SongDataService;
+  let songs$: Subject<Array<{id: string; title: string}>>;
+  let docUpdateSpy: jasmine.Spy<() => Promise<void>>;
+  let docDeleteSpy: jasmine.Spy<() => Promise<void>>;
+  let docSpy: jasmine.Spy;
+  let colAddSpy: jasmine.Spy<() => Promise<{id: string}>>;
+  let colSpy: jasmine.Spy;
+  let dbServiceSpy: jasmine.SpyObj<DbService>;
 
-  const angularFirestoreCollection = {
+  beforeEach(async () => {
-    valueChanges: () => of(songs),
+    songs$ = new Subject<Array<{id: string; title: string}>>();
-  };
+    docUpdateSpy = jasmine.createSpy('update').and.resolveTo();
+    docDeleteSpy = jasmine.createSpy('delete').and.resolveTo();
+    docSpy = jasmine.createSpy('doc').and.callFake(() => ({
+      update: docUpdateSpy,
+      delete: docDeleteSpy,
+    }));
+    colAddSpy = jasmine.createSpy('add').and.resolveTo({id: 'song-3'});
+    colSpy = jasmine.createSpy('col').and.returnValue({
+      add: colAddSpy,
+    });
+    dbServiceSpy = jasmine.createSpyObj<DbService>('DbService', ['col$', 'doc$', 'doc', 'col']);
+    dbServiceSpy.col$.and.returnValue(songs$.asObservable());
+    dbServiceSpy.doc$.and.returnValue(songs$.asObservable() as never);
+    dbServiceSpy.doc.and.callFake(docSpy);
+    dbServiceSpy.col.and.callFake(colSpy);
 
-  const mockAngularFirestore = {
+    await TestBed.configureTestingModule({
-    collection: () => angularFirestoreCollection,
+      providers: [{provide: DbService, useValue: dbServiceSpy}],
-  };
+    });
 
-  beforeEach(
+    service = TestBed.inject(SongDataService);
-    () =>
+  });
-      void TestBed.configureTestingModule({
-        providers: [{provide: AngularFirestore, useValue: mockAngularFirestore}],
-      })
-  );
 
   it('should be created', () => {
-    const service: SongDataService = TestBed.inject(SongDataService);
+    expect(service).toBeTruthy();
-    void expect(service).toBeTruthy();
   });
 
-  it('should list songs', async () => {
+  it('should load songs from the songs collection once on creation', () => {
-    const service: SongDataService = TestBed.inject(SongDataService);
+    expect(dbServiceSpy.col$).toHaveBeenCalledTimes(1);
-    const list = await firstValueFrom(service.list$);
+    expect(dbServiceSpy.col$).toHaveBeenCalledWith('songs');
-    void expect(list[0].title).toEqual('title1');
+  });
+
+  it('should emit an empty list first and then the loaded songs', async () => {
+    const emissionsPromise = firstValueFrom(service.list$.pipe(take(2), toArray()));
+
+    songs$.next([{id: 'song-1', title: 'Amazing Grace'}]);
+
+    const emissions = await emissionsPromise;
+
+    expect(emissions[0]).toEqual([]);
+    expect(emissions[1].map(song => song.id)).toEqual(['song-1']);
+    expect(emissions[1].map(song => song.title)).toEqual(['Amazing Grace']);
+  });
+
+  it('should replay the latest songs to late subscribers', async () => {
+    const initialSubscription = service.list$.subscribe();
+
+    songs$.next([{id: 'song-2', title: 'How Great'}]);
+
+    const latestSongs = await firstValueFrom(service.list$.pipe(take(1)));
+
+    expect(latestSongs.map(song => song.id)).toEqual(['song-2']);
+    expect(latestSongs.map(song => song.title)).toEqual(['How Great']);
+
+    initialSubscription.unsubscribe();
+  });
+
+  it('should read a single song by id', () => {
+    service.read$('song-7');
+
+    expect(dbServiceSpy.doc$).toHaveBeenCalledWith('songs/song-7');
+  });
+
+  it('should update a song at the expected document path', async () => {
+    await service.update$('song-8', {title: 'Updated'});
+
+    expect(docSpy).toHaveBeenCalledWith('songs/song-8');
+    const [updatePayload] = docUpdateSpy.calls.mostRecent().args as unknown as [Record<string, unknown>];
+    expect(updatePayload).toEqual({title: 'Updated'});
+  });
+
+  it('should add a song to the songs collection and return the new id', async () => {
+    await expectAsync(service.add({title: 'New Song'})).toBeResolvedTo('song-3');
+
+    expect(colSpy).toHaveBeenCalledWith('songs');
+    const [addPayload] = colAddSpy.calls.mostRecent().args as unknown as [Record<string, unknown>];
+    expect(addPayload).toEqual({title: 'New Song'});
+  });
+
+  it('should delete a song at the expected document path', async () => {
+    await service.delete('song-9');
+
+    expect(docSpy).toHaveBeenCalledWith('songs/song-9');
+    expect(docDeleteSpy).toHaveBeenCalled();
   });
 });

src/app/modules/songs/services/song-data.service.ts

@@ -1,24 +1,32 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {Song} from './song';
-import {BehaviorSubject, Observable} from 'rxjs';
+import {Observable} from 'rxjs';
 import {DbService} from '../../../services/db.service';
-import {map} from 'rxjs/operators';
+import {shareReplay, startWith} from 'rxjs/operators';
 
 @Injectable({
   providedIn: 'root',
 })
 export class SongDataService {
-  public list$ = new BehaviorSubject<Song[]>([]);
+  private dbService = inject(DbService);
+
   private collection = 'songs';
+  private loadedList$: Observable<Song[]> = this.dbService.col$<Song>(this.collection).pipe(
+    shareReplay({
+      bufferSize: 1,
+      refCount: false, // keep the listener alive after first subscription to avoid reloading on navigation
+    })
+  );
+  public list$: Observable<Song[]> = this.loadedList$.pipe(
+    startWith([] as Song[]), // immediate empty emit keeps UI responsive while first snapshot arrives
+    shareReplay({
+      bufferSize: 1,
+      refCount: false, // keep the listener alive after first subscription to avoid reloading on navigation
+    })
+  );
+  public listLoaded$ = (): Observable<Song[]> => this.loadedList$;
 
-  public constructor(private dbService: DbService) {
+  public read$ = (songId: string): Observable<Song | null> => this.dbService.doc$(this.collection + '/' + songId);
-    this.dbService.col$<Song>(this.collection).subscribe(_ => this.list$.next(_));
-  }
-
-  // public list$ = (): Observable<Song[]> => this.dbService.col$(this.collection);
-
-  //public read$ = (songId: string): Observable<Song | null> => this.dbService.doc$(this.collection + '/' + songId);
-  public read$ = (songId: string): Observable<Song | null> => this.list$.pipe(map(_ => _.find(s => s.id === songId) || null));
   public update$ = async (songId: string, data: Partial<Song>): Promise<void> => await this.dbService.doc(this.collection + '/' + songId).update(data);
   public add = async (data: Partial<Song>): Promise<string> => (await this.dbService.col(this.collection).add(data)).id;
   public delete = async (songId: string): Promise<void> => await this.dbService.doc(this.collection + '/' + songId).delete();

src/app/modules/songs/services/song-list.resolver.spec.ts

@@ -0,0 +1,32 @@
+import {TestBed} from '@angular/core/testing';
+import {of} from 'rxjs';
+import {SongService} from './song.service';
+import {SongListResolver} from './song-list.resolver';
+
+describe('SongListResolver', () => {
+  let resolver: SongListResolver;
+  let songServiceSpy: jasmine.SpyObj<SongService>;
+
+  beforeEach(async () => {
+    songServiceSpy = jasmine.createSpyObj<SongService>('SongService', ['list$']);
+    songServiceSpy.list$.and.returnValue(of([{id: 'song-1', title: 'Amazing Grace'}] as never));
+
+    await TestBed.configureTestingModule({
+      providers: [{provide: SongService, useValue: songServiceSpy}],
+    });
+
+    resolver = TestBed.inject(SongListResolver);
+  });
+
+  it('should be created', () => {
+    expect(resolver).toBeTruthy();
+  });
+
+  it('should resolve the first emitted song list from the service', done => {
+    resolver.resolve().subscribe(songs => {
+      expect(songServiceSpy.list$).toHaveBeenCalled();
+      expect(songs).toEqual([{id: 'song-1', title: 'Amazing Grace'}] as never);
+      done();
+    });
+  });
+});

src/app/modules/songs/services/song-list.resolver.ts

@@ -1,17 +1,17 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 
 import {Observable} from 'rxjs';
 import {SongService} from './song.service';
 import {Song} from './song';
-import {filter} from 'rxjs/operators';
+import {take} from 'rxjs/operators';
 
 @Injectable({
   providedIn: 'root',
 })
 export class SongListResolver {
-  public constructor(private songService: SongService) {}
+  private songService = inject(SongService);
 
   public resolve(): Observable<Song[]> {
-    return this.songService.list$().pipe(filter(_ => _.length > 0));
+    return this.songService.listLoaded$().pipe(take(1));
   }
 }

src/app/modules/songs/services/song.service.spec.ts

@@ -1,32 +1,100 @@
-import {TestBed, waitForAsync} from '@angular/core/testing';
+import {TestBed} from '@angular/core/testing';
-
-import {SongService} from './song.service';
-import {SongDataService} from './song-data.service';
 import {of} from 'rxjs';
+import {SongDataService} from './song-data.service';
+import {SongService} from './song.service';
+import {UserService} from '../../../services/user/user.service';
+import {Timestamp} from '@angular/fire/firestore';
 
 describe('SongService', () => {
-  const songs = [{title: 'title1'}];
+  let service: SongService;
+  let songDataServiceSpy: jasmine.SpyObj<SongDataService>;
+  let userServiceSpy: jasmine.SpyObj<UserService>;
+  const song = {
+    id: 'song-1',
+    title: 'Amazing Grace',
+    edits: [],
+  } as never;
 
-  const mockSongDataService = {
+  beforeEach(async () => {
-    list: () => of(songs),
+    songDataServiceSpy = jasmine.createSpyObj<SongDataService>('SongDataService', ['read$', 'update$', 'add', 'delete'], {
-  };
+      list$: of([song]),
+    });
+    userServiceSpy = jasmine.createSpyObj<UserService>('UserService', ['currentUser']);
 
-  beforeEach(
+    songDataServiceSpy.read$.and.returnValue(of(song));
-    () =>
+    songDataServiceSpy.update$.and.resolveTo();
-      void TestBed.configureTestingModule({
+    songDataServiceSpy.add.and.resolveTo('song-2');
-        providers: [{provide: SongDataService, useValue: mockSongDataService}],
+    songDataServiceSpy.delete.and.resolveTo();
-      })
+    userServiceSpy.currentUser.and.resolveTo({name: 'Benjamin'} as never);
-  );
+
+    await TestBed.configureTestingModule({
+      providers: [
+        {provide: SongDataService, useValue: songDataServiceSpy},
+        {provide: UserService, useValue: userServiceSpy},
+      ],
+    });
+
+    service = TestBed.inject(SongService);
+  });
 
   it('should be created', () => {
-    const service: SongService = TestBed.inject(SongService);
+    expect(service).toBeTruthy();
-    void expect(service).toBeTruthy();
   });
 
-  it('should list songs', waitForAsync(() => {
+  it('should list songs from the data service', done => {
-    const service: SongService = TestBed.inject(SongService);
+    service.list$().subscribe(songs => {
-    service.list$().subscribe(s => {
+      expect(songs).toEqual([song]);
-      void expect(s[0].title).toEqual('title1');
+      done();
+    });
+  });
+
+  it('should delegate reads to the data service', async () => {
+    await expectAsync(service.read('song-1')).toBeResolvedTo(song);
+    expect(songDataServiceSpy.read$).toHaveBeenCalledWith('song-1');
+  });
+
+  it('should append an edit with the current user when updating a song', async () => {
+    const timestamp = {seconds: 1} as never;
+    spyOn(Timestamp, 'now').and.returnValue(timestamp);
+
+    await service.update$('song-1', {title: 'Updated'});
+
+    expect(songDataServiceSpy.update$).toHaveBeenCalled();
+    const [, payload] = songDataServiceSpy.update$.calls.mostRecent().args as unknown as [string, Record<string, unknown>];
+    expect(payload.title).toBe('Updated');
+    expect(payload.edits).toEqual([{username: 'Benjamin', timestamp}]);
+  });
+
+  it('should not update when the song does not exist', async () => {
+    songDataServiceSpy.read$.and.returnValue(of(null));
+
+    await service.update$('missing-song', {title: 'Updated'});
+
+    expect(songDataServiceSpy.update$).not.toHaveBeenCalled();
+  });
+
+  it('should not update when no current user is available', async () => {
+    userServiceSpy.currentUser.and.resolveTo(null);
+
+    await service.update$('song-1', {title: 'Updated'});
+
+    expect(songDataServiceSpy.update$).not.toHaveBeenCalled();
+  });
+
+  it('should create new songs with the expected defaults', async () => {
+    await expectAsync(service.new(42, 'New Song')).toBeResolvedTo('song-2');
+
+    expect(songDataServiceSpy.add).toHaveBeenCalledWith({
+      number: 42,
+      title: 'New Song',
+      status: 'draft',
+      legalType: 'open',
+    });
+  });
+
+  it('should delete songs via the data service', async () => {
+    await service.delete('song-1');
+
+    expect(songDataServiceSpy.delete).toHaveBeenCalledWith('song-1');
   });
-  }));
 });

src/app/modules/songs/services/song.service.ts

@@ -1,10 +1,9 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {firstValueFrom, Observable} from 'rxjs';
 import {Song} from './song';
 import {SongDataService} from './song-data.service';
 import {UserService} from '../../../services/user/user.service';
-import firebase from 'firebase/compat/app';
+import {Timestamp} from '@angular/fire/firestore';
-import Timestamp = firebase.firestore.Timestamp;
 
 // declare let importCCLI: any;
 
@@ -17,22 +16,17 @@ export type SongLegalType = 'open' | 'allowed';
   providedIn: 'root',
 })
 export class SongService {
+  private songDataService = inject(SongDataService);
+  private userService = inject(UserService);
+
   public static TYPES: SongType[] = ['Praise', 'Worship', 'Misc'];
   public static STATUS: SongStatus[] = ['draft', 'set', 'final'];
 
   public static LEGAL_OWNER: SongLegalOwner[] = ['CCLI', 'other'];
   public static LEGAL_TYPE: SongLegalType[] = ['open', 'allowed'];
 
-  // private list: Song[];
-
-  public constructor(
-    private songDataService: SongDataService,
-    private userService: UserService
-  ) {
-    // importCCLI = (songs: Song[]) => this.updateFromCLI(songs);
-  }
-
   public list$ = (): Observable<Song[]> => this.songDataService.list$; //.pipe(tap(_ => (this.list = _)));
+  public listLoaded$ = (): Observable<Song[]> => this.songDataService.listLoaded$();
   public read$ = (songId: string): Observable<Song | null> => this.songDataService.read$(songId);
   public read = (songId: string): Promise<Song | null> => firstValueFrom(this.read$(songId));
 

src/app/modules/songs/services/song.ts

@@ -1,6 +1,5 @@
-import firebase from 'firebase/compat/app';
 import {SongLegalOwner, SongLegalType, SongStatus, SongType} from './song.service';
-import Timestamp = firebase.firestore.Timestamp;
+import {Timestamp} from '@angular/fire/firestore';
 
 export interface Song {
   id: string;

src/app/modules/songs/services/text-rendering.service.spec.ts

@@ -2,8 +2,22 @@ import {TestBed} from '@angular/core/testing';
 import {TextRenderingService} from './text-rendering.service';
 import {LineType} from './line-type';
 import {SectionType} from './section-type';
+import {TransposeService} from './transpose.service';
+import {ChordAddDescriptor} from './chord';
 
 describe('TextRenderingService', () => {
+  const descriptor = (raw: string, partial: Partial<ChordAddDescriptor>) =>
+    jasmine.objectContaining({
+      raw,
+      quality: null,
+      extensions: [],
+      additions: [],
+      suspensions: [],
+      alterations: [],
+      modifiers: [],
+      ...partial,
+    });
+
   const testText = `Strophe
 C D E F G A H
 Text Line 1-1
@@ -31,6 +45,7 @@ Cool bridge without any chords
     void expect(service).toBeTruthy();
   });
 
+  describe('section parsing', () => {
     it('should parse section types', () => {
       const service: TextRenderingService = TestBed.inject(TextRenderingService);
       const sections = service.parse(testText, null);
@@ -44,6 +59,53 @@ Cool bridge without any chords
       void expect(sections[3].number).toBe(0);
     });
 
+    it('should accept section headers with numbering and lowercase letters', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `strophe 1
+Text A
+Refrain 2
+Text B`;
+
+      const sections = service.parse(text, null);
+
+      void expect(sections.length).toBe(2);
+      void expect(sections[0].type).toBe(SectionType.Verse);
+      void expect(sections[1].type).toBe(SectionType.Chorus);
+    });
+
+    it('should return an empty array for empty input', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+
+      void expect(service.parse('', null)).toEqual([]);
+    });
+
+    it('should ignore content before the first recognized section header', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Intro ohne Section
+Noch eine Zeile
+Strophe
+Text`;
+
+      const sections = service.parse(text, null);
+
+      void expect(sections.length).toBe(1);
+      void expect(sections[0].lines.length).toBe(1);
+      void expect(sections[0].lines[0].text).toBe('Text');
+    });
+
+    it('should support windows line endings', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = 'Strophe\r\nC D E\r\nText\r\nRefrain\r\nG A H';
+
+      const sections = service.parse(text, null);
+
+      void expect(sections.length).toBe(2);
+      void expect(sections[0].lines[0].type).toBe(LineType.chord);
+      void expect(sections[1].lines[0].type).toBe(LineType.chord);
+    });
+  });
+
+  describe('comments and text lines', () => {
     it('should parse text lines', () => {
       const service: TextRenderingService = TestBed.inject(TextRenderingService);
       const sections = service.parse(testText, null);
@@ -61,6 +123,66 @@ Cool bridge without any chords
       void expect(sections[3].lines[0].text).toBe('Cool bridge without any chords');
     });
 
+    it('should ignore indented comment lines when comments are disabled', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+  # hidden comment
+Text`;
+
+      const sections = service.parse(text, null, false);
+
+      void expect(sections[0].lines.length).toBe(1);
+      void expect(sections[0].lines[0].text).toBe('Text');
+    });
+
+    it('should keep comment lines when comments are enabled', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+# Kommentar
+Text`;
+
+      const sections = service.parse(text, null, true);
+
+      void expect(sections[0].lines.length).toBe(2);
+      void expect(sections[0].lines[0].text).toBe('# Kommentar');
+      void expect(sections[0].lines[1].text).toBe('Text');
+    });
+
+    it('should not classify ordinary text with isolated note letters as a chord line', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+Anna geht heute baden
+Text`;
+
+      const sections = service.parse(text, null);
+
+      void expect(sections[0].lines[0].type).toBe(LineType.text);
+      void expect(sections[0].lines[0].chords).toBeNull();
+    });
+
+    it('should treat compact prose-like tokens as text when the chord ratio is too low', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+Das ist C nicht D sondern Text
+Text`;
+
+      const sections = service.parse(text, null);
+
+      void expect(sections[0].lines[0].type).toBe(LineType.text);
+      void expect(sections[0].lines[0].chords).toBeNull();
+    });
+
+    it('should ignore prose lines even if they contain note-like words', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+Heute singt Fis nicht mit
+Text`;
+
+      void expect(service.validateChordNotation(text)).toEqual([]);
+    });
+  });
+
+  describe('chord parsing', () => {
     it('should parse chord lines', () => {
       const service: TextRenderingService = TestBed.inject(TextRenderingService);
       const sections = service.parse(testText, null);
@@ -73,16 +195,15 @@ Cool bridge without any chords
       void expect(sections[1].lines[2].type).toBe(LineType.chord);
       void expect(sections[1].lines[2].text).toBe(' a d e f g a h c b');
       void expect(sections[2].lines[0].type).toBe(LineType.chord);
-    void expect(sections[2].lines[0].text).toBe('c c# db c7   cmaj7    c/e');
+      void expect(sections[2].lines[0].text).toBe('c c♯ d♭ c7   cmaj7    c/e');
 
-    // c c# db c7   cmaj7    c/e
       void expect(sections[2].lines[0].chords).toEqual([
-      {chord: 'c', length: 1, position: 0, add: null, slashChord: null},
+        {chord: 'c', length: 1, position: 0, add: null, slashChord: null, addDescriptor: null},
-      {chord: 'c#', length: 2, position: 2, add: null, slashChord: null},
+        {chord: 'c#', length: 2, position: 2, add: null, slashChord: null, addDescriptor: null},
-      {chord: 'db', length: 2, position: 5, add: null, slashChord: null},
+        {chord: 'db', length: 2, position: 5, add: null, slashChord: null, addDescriptor: null},
-      {chord: 'c', length: 2, position: 8, add: '7', slashChord: null},
+        {chord: 'c', length: 2, position: 8, add: '7', slashChord: null, addDescriptor: descriptor('7', {extensions: ['7']})},
-      {chord: 'c', length: 5, position: 13, add: 'maj7', slashChord: null},
+        {chord: 'c', length: 5, position: 13, add: 'maj7', slashChord: null, addDescriptor: descriptor('maj7', {quality: 'major', extensions: ['7']})},
-      {chord: 'c', length: 3, position: 22, add: null, slashChord: 'e'},
+        {chord: 'c', length: 3, position: 22, add: null, slashChord: 'e', addDescriptor: null},
       ]);
     });
 
@@ -93,8 +214,288 @@ g#       F#         E          g#       F#          E
 text`;
       const sections = service.parse(text, null);
       void expect(sections[0].lines[0].type).toBe(LineType.chord);
-    void expect(sections[0].lines[0].text).toBe('g#       F#         E          g#       F#          E');
+      void expect(sections[0].lines[0].text).toBe('g♯       F♯         E          g♯       F♯          E');
       void expect(sections[0].lines[1].type).toBe(LineType.text);
       void expect(sections[0].lines[1].text).toBe('text');
     });
+
+    it('should preserve exact chord positions for spaced chord lines', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+C       G/B      Am
+Text`;
+
+      const sections = service.parse(text, null);
+
+      void expect(sections[0].lines[0].chords).toEqual([
+        {chord: 'C', length: 1, position: 0, add: null, slashChord: null, addDescriptor: null},
+        {chord: 'G', length: 3, position: 8, add: null, slashChord: 'B', addDescriptor: null},
+        {chord: 'A', length: 2, position: 17, add: 'm', slashChord: null, addDescriptor: descriptor('m', {quality: 'minor'})},
+      ]);
+    });
+
+    it('should parse common international chord suffixes and slash chords after the suffix', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+Cmaj7 Dm7 Gsus4 Aadd9 Cmaj7/E
+Text`;
+
+      const sections = service.parse(text, null);
+
+      void expect(sections[0].lines[0].type).toBe(LineType.chord);
+      void expect(sections[0].lines[0].chords).toEqual([
+        {chord: 'C', length: 5, position: 0, add: 'maj7', slashChord: null, addDescriptor: descriptor('maj7', {quality: 'major', extensions: ['7']})},
+        {chord: 'D', length: 3, position: 6, add: 'm7', slashChord: null, addDescriptor: descriptor('m7', {quality: 'minor', extensions: ['7']})},
+        {chord: 'G', length: 5, position: 10, add: 'sus4', slashChord: null, addDescriptor: descriptor('sus4', {suspensions: ['4']})},
+        {chord: 'A', length: 5, position: 16, add: 'add9', slashChord: null, addDescriptor: descriptor('add9', {additions: ['9']})},
+        {chord: 'C', length: 7, position: 22, add: 'maj7', slashChord: 'E', addDescriptor: descriptor('maj7', {quality: 'major', extensions: ['7']})},
+      ]);
+    });
+
+    it('should parse german chord suffixes', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+Hmoll Edur Cverm Faug
+Text`;
+
+      const sections = service.parse(text, null);
+
+      void expect(sections[0].lines[0].type).toBe(LineType.chord);
+      void expect(sections[0].lines[0].chords).toEqual([
+        {chord: 'H', length: 5, position: 0, add: 'moll', slashChord: null, addDescriptor: descriptor('moll', {quality: 'minor'})},
+        {chord: 'E', length: 4, position: 6, add: 'dur', slashChord: null, addDescriptor: descriptor('dur', {quality: 'major'})},
+        {chord: 'C', length: 5, position: 11, add: 'verm', slashChord: null, addDescriptor: descriptor('verm', {quality: 'diminished'})},
+        {chord: 'F', length: 4, position: 17, add: 'aug', slashChord: null, addDescriptor: descriptor('aug', {quality: 'augmented'})},
+      ]);
+    });
+
+    it('should parse numeric and altered chord suffixes', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+C7 D9 E11 F13 Gadd#9 A7-5
+Text`;
+
+      const sections = service.parse(text, null);
+
+      void expect(sections[0].lines[0].chords).toEqual([
+        {chord: 'C', length: 2, position: 0, add: '7', slashChord: null, addDescriptor: descriptor('7', {extensions: ['7']})},
+        {chord: 'D', length: 2, position: 3, add: '9', slashChord: null, addDescriptor: descriptor('9', {extensions: ['9']})},
+        {chord: 'E', length: 3, position: 6, add: '11', slashChord: null, addDescriptor: descriptor('11', {extensions: ['11']})},
+        {chord: 'F', length: 3, position: 10, add: '13', slashChord: null, addDescriptor: descriptor('13', {extensions: ['13']})},
+        {chord: 'G', length: 6, position: 14, add: 'add#9', slashChord: null, addDescriptor: descriptor('add#9', {additions: ['#9']})},
+        {chord: 'A', length: 4, position: 21, add: '7-5', slashChord: null, addDescriptor: descriptor('7-5', {extensions: ['7'], alterations: ['-5']})},
+      ]);
+    });
+
+    it('should parse lowercase roots with suffixes and slash chords', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+emoll d/F# cmaj7/e
+Text`;
+
+      const sections = service.parse(text, null);
+
+      void expect(sections[0].lines[0].chords).toEqual([
+        {chord: 'e', length: 5, position: 0, add: 'moll', slashChord: null, addDescriptor: descriptor('moll', {quality: 'minor'})},
+        {chord: 'd', length: 4, position: 6, add: null, slashChord: 'F#', addDescriptor: null},
+        {chord: 'c', length: 7, position: 11, add: 'maj7', slashChord: 'e', addDescriptor: descriptor('maj7', {quality: 'major', extensions: ['7']})},
+      ]);
+    });
+
+    it('should expose semantic descriptors for complex chord additions', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+Cmaj7(add9) Dm7 Gsus4 A7-5
+Text`;
+
+      const sections = service.parse(text, null);
+      const chords = sections[0].lines[0].chords ?? [];
+
+      void expect(chords[0].addDescriptor).toEqual(
+        descriptor('maj7(add9)', {
+          quality: 'major',
+          extensions: ['7'],
+          modifiers: ['(add9)'],
+        })
+      );
+      void expect(chords[1].addDescriptor).toEqual(descriptor('m7', {quality: 'minor', extensions: ['7']}));
+      void expect(chords[2].addDescriptor).toEqual(descriptor('sus4', {suspensions: ['4']}));
+      void expect(chords[3].addDescriptor).toEqual(descriptor('7-5', {extensions: ['7'], alterations: ['-5']}));
+    });
+
+    it('should not misinterpret modifier parentheses as group wrappers', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+Cmaj7(add9)
+Text`;
+
+      const sections = service.parse(text, null);
+
+      void expect(sections[0].lines[0].text).toBe('Cmaj7(add9)');
+      void expect(sections[0].lines[0].chords).toEqual([
+        {
+          chord: 'C',
+          length: 11,
+          position: 0,
+          add: 'maj7(add9)',
+          slashChord: null,
+          addDescriptor: descriptor('maj7(add9)', {
+            quality: 'major',
+            extensions: ['7'],
+            modifiers: ['(add9)'],
+          }),
+        },
+      ]);
+      void expect(service.validateChordNotation(text)).toEqual([]);
+    });
+  });
+
+  describe('parenthesized groups', () => {
+    it('should keep parentheses around alternative chord groups', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+C F G e C  (F G)
+Text`;
+
+      const sections = service.parse(text, null);
+
+      void expect(sections[0].lines[0].type).toBe(LineType.chord);
+      void expect(sections[0].lines[0].text).toBe('C F G e C  (F G)');
+      void expect(sections[0].lines[0].chords).toEqual([
+        {chord: 'C', length: 1, position: 0, add: null, slashChord: null, addDescriptor: null},
+        {chord: 'F', length: 1, position: 2, add: null, slashChord: null, addDescriptor: null},
+        {chord: 'G', length: 1, position: 4, add: null, slashChord: null, addDescriptor: null},
+        {chord: 'e', length: 1, position: 6, add: null, slashChord: null, addDescriptor: null},
+        {chord: 'C', length: 1, position: 8, add: null, slashChord: null, addDescriptor: null},
+        {chord: 'F', length: 2, position: 11, add: null, slashChord: null, addDescriptor: null, prefix: '('},
+        {chord: 'G', length: 2, position: 14, add: null, slashChord: null, addDescriptor: null, suffix: ')'},
+      ]);
+    });
+
+    it('should transpose multiple chords inside a parenthesized group', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+C F G e C  (F G)
+Text`;
+
+      const sections = service.parse(text, {baseKey: 'C', targetKey: 'D'});
+
+      void expect(sections[0].lines[0].type).toBe(LineType.chord);
+      void expect(sections[0].lines[0].text).toBe('D G A f♯ D  (G A)');
+    });
+  });
+
+  describe('transpose integration', () => {
+    it('should call the transpose service when a transpose mode is provided', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const transposeService = TestBed.inject(TransposeService);
+      const transposeSpy = spyOn(transposeService, 'transpose').and.callThrough();
+      const renderSpy = spyOn(transposeService, 'renderChords').and.callThrough();
+      const text = `Strophe
+C D E
+Text`;
+
+      service.parse(text, {baseKey: 'C', targetKey: 'D'});
+
+      void expect(transposeSpy).toHaveBeenCalledTimes(2);
+      void expect(renderSpy).not.toHaveBeenCalled();
+    });
+
+    it('should use renderChords when no transpose mode is provided', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const transposeService = TestBed.inject(TransposeService);
+      const transposeSpy = spyOn(transposeService, 'transpose').and.callThrough();
+      const renderSpy = spyOn(transposeService, 'renderChords').and.callThrough();
+      const text = `Strophe
+C D E
+Text`;
+
+      service.parse(text, null);
+
+      void expect(renderSpy).toHaveBeenCalledTimes(2);
+      void expect(transposeSpy).not.toHaveBeenCalled();
+    });
+  });
+
+  describe('notation validation', () => {
+    it('should report non-canonical sharp and flat aliases on chord lines', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+Fis Hmoll Des/Fis
+Text`;
+
+      void expect(service.validateChordNotation(text)).toEqual([
+        jasmine.objectContaining({lineNumber: 2, token: 'Fis', suggestion: 'F#', reason: 'alias'}),
+        jasmine.objectContaining({lineNumber: 2, token: 'Hmoll', suggestion: 'h', reason: 'minor_format'}),
+        jasmine.objectContaining({lineNumber: 2, token: 'Des/Fis', suggestion: 'Db/F#', reason: 'alias'}),
+      ]);
+    });
+
+    it('should report uppercase minor and lowercase major chord notation', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+Am Dm7 cdur C
+Text`;
+
+      void expect(service.validateChordNotation(text)).toEqual([
+        jasmine.objectContaining({lineNumber: 2, token: 'Am', suggestion: 'a', reason: 'minor_format'}),
+        jasmine.objectContaining({lineNumber: 2, token: 'Dm7', suggestion: 'd7', reason: 'minor_format'}),
+        jasmine.objectContaining({lineNumber: 2, token: 'cdur', suggestion: 'C', reason: 'major_format'}),
+      ]);
+    });
+
+    it('should keep slash bass notes uppercase in canonical minor suggestions', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+Am/C# Dm7/F#
+Text`;
+
+      void expect(service.validateChordNotation(text)).toEqual([
+        jasmine.objectContaining({lineNumber: 2, token: 'Am/C#', suggestion: 'a/C#', reason: 'minor_format'}),
+        jasmine.objectContaining({lineNumber: 2, token: 'Dm7/F#', suggestion: 'd7/F#', reason: 'minor_format'}),
+      ]);
+    });
+
+    it('should keep mostly-chord lines with unknown tokens in chord mode', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+C Es G
+Text`;
+
+      const sections = service.parse(text, null);
+
+      void expect(sections[0].lines[0].type).toBe(LineType.chord);
+      void expect(sections[0].lines[0].text).toBe('C Es G');
+      void expect(service.validateChordNotation(text)).toEqual([jasmine.objectContaining({lineNumber: 2, token: 'Es', reason: 'alias', suggestion: 'Eb'})]);
+    });
+
+    it('should flag unknown tokens on mostly chord lines', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = `Strophe
+C Foo G a
+Text`;
+
+      void expect(service.validateChordNotation(text)).toEqual([jasmine.objectContaining({lineNumber: 2, token: 'Foo', reason: 'unknown_token', suggestion: null})]);
+    });
+
+    it('should reject tabs on chord lines', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = 'Strophe\nC\tG\ta\nText';
+
+      void expect(service.validateChordNotation(text)).toContain(
+        jasmine.objectContaining({
+          lineNumber: 2,
+          token: '\t',
+          reason: 'tab_character',
+        })
+      );
+    });
+
+    it('should not flag tabs on non chord lines', () => {
+      const service: TextRenderingService = TestBed.inject(TextRenderingService);
+      const text = 'Strophe\nDas\tist normaler Text\nText';
+
+      void expect(service.validateChordNotation(text)).toEqual([]);
+    });
+  });
 });

src/app/modules/songs/services/text-rendering.service.ts

@@ -1,55 +1,170 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {TransposeService} from './transpose.service';
 import {TransposeMode} from './transpose-mode';
 import {SectionType} from './section-type';
 import {Section} from './section';
 import {LineType} from './line-type';
-import {Chord} from './chord';
+import {Chord, ChordAddDescriptor, ChordValidationIssue} from './chord';
 import {Line} from './line';
 
+type ChordRootDefinition = {
+  canonical: string;
+  aliases: string[];
+};
+
+const CHORD_ROOT_DEFINITIONS: readonly ChordRootDefinition[] = [
+  {canonical: 'C#', aliases: ['Cis']},
+  {canonical: 'Db', aliases: ['Des']},
+  {canonical: 'D#', aliases: ['Dis']},
+  {canonical: 'Eb', aliases: ['Es']},
+  {canonical: 'F#', aliases: ['Fis']},
+  {canonical: 'Gb', aliases: ['Ges']},
+  {canonical: 'G#', aliases: ['Gis']},
+  {canonical: 'Ab', aliases: ['As']},
+  {canonical: 'A#', aliases: ['Ais']},
+  {canonical: 'C', aliases: []},
+  {canonical: 'D', aliases: []},
+  {canonical: 'E', aliases: []},
+  {canonical: 'F', aliases: []},
+  {canonical: 'G', aliases: []},
+  {canonical: 'A', aliases: []},
+  {canonical: 'B', aliases: ['Hb']},
+  {canonical: 'H', aliases: []},
+  {canonical: 'c#', aliases: ['cis']},
+  {canonical: 'db', aliases: ['des']},
+  {canonical: 'd#', aliases: ['dis']},
+  {canonical: 'eb', aliases: ['es']},
+  {canonical: 'f#', aliases: ['fis']},
+  {canonical: 'gb', aliases: ['ges']},
+  {canonical: 'g#', aliases: ['gis']},
+  {canonical: 'ab', aliases: ['as']},
+  {canonical: 'a#', aliases: ['ais']},
+  {canonical: 'c', aliases: []},
+  {canonical: 'd', aliases: []},
+  {canonical: 'e', aliases: []},
+  {canonical: 'f', aliases: []},
+  {canonical: 'g', aliases: []},
+  {canonical: 'a', aliases: []},
+  {canonical: 'b', aliases: ['hb']},
+  {canonical: 'h', aliases: []},
+] as const;
+
+const CANONICAL_CHORD_ROOTS = CHORD_ROOT_DEFINITIONS.map(entry => entry.canonical);
+const ALTERNATIVE_CHORD_ROOTS = CHORD_ROOT_DEFINITIONS.reduce<Record<string, string>>((aliases, entry) => {
+  entry.aliases.forEach(alias => {
+    aliases[alias] = entry.canonical;
+  });
+  return aliases;
+}, {});
+
+interface ParsedValidationToken {
+  prefix: string;
+  root: string;
+  suffix: string;
+  slashChord: string | null;
+  rootWasAlias: boolean;
+  slashWasAlias: boolean;
+  tokenSuffix: string;
+}
+
+interface ChordLineValidationResult {
+  chords: Chord[];
+  issues: ChordValidationIssue[];
+  isStrictChordLine: boolean;
+  isChordLike: boolean;
+}
+
+interface ParsedTokenCandidate {
+  token: string;
+  parsed: ParsedValidationToken | null;
+}
+
 @Injectable({
   providedIn: 'root',
 })
 export class TextRenderingService {
-  private regexSection = /(Strophe|Refrain|Bridge)/;
+  private transposeService = inject(TransposeService);
 
-  public constructor(private transposeService: TransposeService) {}
+  private readonly regexSection = /^\s*(Strophe|Refrain|Bridge)\b/i;
+  private readonly chordRoots = CANONICAL_CHORD_ROOTS;
+  private readonly suffixKeywords = ['moll', 'verm', 'maj', 'min', 'dur', 'dim', 'aug', 'sus', 'add', 'm'] as const;
+  private readonly suffixChars = new Set(['#', 'b', '+', '-', '(', ')']);
+  private readonly alternativeChordRoots = ALTERNATIVE_CHORD_ROOTS;
 
   public parse(text: string, transpose: TransposeMode | null, withComments = true): Section[] {
     if (!text) {
       return [];
     }
-    const arrayOfLines = text.split(/\r?\n/).filter(_ => _ && (!_.startsWith('#') || withComments));
+
     const indices = {
       [SectionType.Bridge]: 0,
       [SectionType.Chorus]: 0,
       [SectionType.Verse]: 0,
     };
-    return arrayOfLines.reduce((array, line) => {
+    const sections: Section[] = [];
+
+    for (const [lineIndex, line] of text.split(/\r?\n/).entries()) {
+      if (!line || this.isCommentLine(line, withComments)) {
+        continue;
+      }
+
       const type = this.getSectionTypeOfLine(line);
-      if (this.regexSection.exec(line) && type !== null) {
+      if (type !== null) {
-        const section: Section = {
+        sections.push({
           type,
           number: indices[type]++,
           lines: [],
-        };
+        });
-        return [...array, section];
+        continue;
-      }
-      const lineOfLineText = this.getLineOfLineText(line, transpose);
-      if (array.length === 0) return array;
-      if (lineOfLineText) array[array.length - 1].lines.push(lineOfLineText);
-      return array;
-    }, [] as Section[]);
       }
 
-  private getLineOfLineText(text: string, transpose: TransposeMode | null): Line | null {
+      if (sections.length === 0) {
+        continue;
+      }
+
+      const renderedLine = this.getLineOfLineText(line, transpose, lineIndex + 1);
+      if (renderedLine) {
+        sections[sections.length - 1].lines.push(renderedLine);
+      }
+    }
+
+    return sections;
+  }
+
+  public validateChordNotation(text: string, withComments = true): ChordValidationIssue[] {
+    if (!text) {
+      return [];
+    }
+
+    const issues: ChordValidationIssue[] = [];
+    const lines = text.split(/\r?\n/);
+
+    lines.forEach((line, lineIndex) => {
+      if (!line || this.isCommentLine(line, withComments) || this.getSectionTypeOfLine(line) !== null) {
+        return;
+      }
+
+      const validationResult = this.getChordLineValidationResult(line, lineIndex + 1);
+      issues.push(...validationResult.issues);
+    });
+
+    return issues;
+  }
+
+  private getLineOfLineText(text: string, transpose: TransposeMode | null, lineNumber?: number): Line | null {
     if (!text) return null;
 
-    const cords = this.readChords(text);
+    const validationResult = lineNumber ? this.getChordLineValidationResult(text, lineNumber) : {chords: [], issues: [], isStrictChordLine: false, isChordLike: false};
-    const hasMatches = cords.length > 0;
+    const validationIssues = validationResult.issues;
-    const type = hasMatches ? LineType.chord : LineType.text;
+    const hasMatches = validationResult.isStrictChordLine;
+    const isChordLikeLine = hasMatches || validationResult.isChordLike;
+    const type = isChordLikeLine ? LineType.chord : LineType.text;
+
+    const line: Line = {type, text, chords: hasMatches ? validationResult.chords : null, lineNumber};
+    if (validationIssues.length > 0 || (!hasMatches && isChordLikeLine)) {
+      return line;
+    }
 
-    const line: Line = {type, text, chords: hasMatches ? cords : null};
     return transpose !== null && transpose !== undefined ? this.transposeService.transpose(line, transpose.baseKey, transpose.targetKey) : this.transposeService.renderChords(line);
   }
 
@@ -61,48 +176,548 @@ export class TextRenderingService {
     if (!match || match.length < 2) {
       return null;
     }
-    const typeString = match[1];
+    const typeString = match[1].toLowerCase();
     switch (typeString) {
-      case 'Strophe':
+      case 'strophe':
         return SectionType.Verse;
-      case 'Refrain':
+      case 'refrain':
         return SectionType.Chorus;
-      case 'Bridge':
+      case 'bridge':
         return SectionType.Bridge;
     }
 
     return null;
   }
 
-  private readChords(chordLine: string): Chord[] {
+  private getParsedChords(chordLine: string): Chord[] {
-    let match: string[] | null;
     const chords: Chord[] = [];
+    const tokens = chordLine.match(/\S+/g) ?? [];
 
-    // https://regex101.com/r/68jMB8/5
+    for (const token of tokens) {
-    const regex =
+      const position = chordLine.indexOf(token, chords.length > 0 ? chords[chords.length - 1].position + chords[chords.length - 1].length : 0);
-      /(C#|C|Db|D#|D|Eb|E|F#|F|Gb|G#|G|Ab|A#|A|B|H|c#|c|db|d#|d|eb|e|f#|f|gb|g#|g|ab|a#|a|b|h)(\/(C#|C|Db|D#|D|Eb|E|F#|F|Gb|G#|G|Ab|A#|A|B|H|c#|c|db|d#|d|eb|e|f#|f|gb|g#|g|ab|a#|a|b|h))?(\d+|maj7)?/gm;
+      const chord = this.parseChordToken(token, position);
-
+      if (chord) {
-    while ((match = regex.exec(chordLine)) !== null) {
-      const chord: Chord = {
-        chord: match[1],
-        length: match[0].length,
-        position: regex.lastIndex - match[0].length,
-        slashChord: null,
-        add: null,
-      };
-      if (match[3]) {
-        chord.slashChord = match[3];
-      }
-      if (match[4]) {
-        chord.add = match[4];
-      }
-
         chords.push(chord);
       }
+    }
 
-    const chordCount = chords.reduce((acc: number, cur: Chord) => acc + cur.length, 0);
+    return chords;
-    const lineCount = chordLine.replace(/\s/g, '').length;
+  }
-    const isChrod = chordCount * 1.2 > lineCount;
+
-    return isChrod ? chords : [];
+  private getChordLineValidationResult(line: string, lineNumber: number): ChordLineValidationResult {
+    const tokens: string[] = line.match(/\S+/g) ?? [];
+    const chords = this.getParsedChords(line);
+    const parsedTokens: ParsedTokenCandidate[] = tokens.map(token => ({
+      token,
+      parsed: this.parseValidationToken(token),
+    }));
+
+    const recognizedTokens = parsedTokens.filter((entry): entry is {token: string; parsed: ParsedValidationToken} => entry.parsed !== null);
+
+    const strictChordCount = chords.reduce((sum, chord) => sum + chord.length, 0);
+    const parsedLength = recognizedTokens.reduce((sum, entry) => sum + entry.token.length, 0);
+    const compactLineLength = line.replace(/\s/g, '').length;
+    const isStrictChordLine = compactLineLength > 0 && strictChordCount * 1.2 > compactLineLength;
+    const strictlyChordLike = compactLineLength > 0 && parsedLength * 1.2 > compactLineLength;
+    const heuristicallyChordLike = tokens.length >= 2 && recognizedTokens.length >= Math.ceil(tokens.length * 0.6);
+    const isChordLike = strictlyChordLike || heuristicallyChordLike;
+
+    if (!isChordLike) {
+      return {chords, issues: [], isStrictChordLine, isChordLike: false};
+    }
+
+    const issues: ChordValidationIssue[] = [];
+    if (line.includes('\t')) {
+      issues.push(this.createTabCharacterIssue(line, lineNumber));
+    }
+
+    return {
+      chords,
+      issues: [
+        ...issues,
+        ...parsedTokens
+          .map(entry => {
+            if (!entry.parsed) {
+              return this.createUnknownTokenIssue(line, lineNumber, entry.token);
+            }
+
+            return this.createValidationIssue(line, lineNumber, entry.token, entry.parsed);
+          })
+          .filter((issue): issue is ChordValidationIssue => issue !== null),
+      ],
+      isStrictChordLine,
+      isChordLike: true,
+    };
+  }
+
+  private isCommentLine(line: string, withComments: boolean): boolean {
+    return !withComments && line.trimStart().startsWith('#');
+  }
+
+  private parseChordToken(token: string, position: number): Chord | null {
+    const decoratedToken = this.splitTokenDecorators(token);
+    const root = this.readChordRoot(decoratedToken.core, 0);
+    if (!root) {
+      return null;
+    }
+
+    let cursor = root.length;
+    const suffix = this.readChordSuffix(decoratedToken.core, cursor);
+    cursor += suffix.length;
+
+    let slashChord: string | null = null;
+    if (decoratedToken.core[cursor] === '/') {
+      const slash = this.readChordRoot(decoratedToken.core, cursor + 1);
+      if (!slash) {
+        return null;
+      }
+      slashChord = slash;
+      cursor += 1 + slash.length;
+    }
+
+    if (cursor !== decoratedToken.core.length) {
+      return null;
+    }
+
+    return {
+      chord: root,
+      length: token.length,
+      position,
+      slashChord,
+      add: suffix || null,
+      addDescriptor: this.parseChordAddDescriptor(suffix || null),
+      prefix: decoratedToken.prefix || undefined,
+      suffix: decoratedToken.suffix || undefined,
+    };
+  }
+
+  private readChordRoot(token: string, start: number): string | null {
+    return this.chordRoots.find(root => token.startsWith(root, start)) ?? null;
+  }
+
+  private readValidationChordRoot(token: string, start: number): {root: string; length: number; wasAlias: boolean} | null {
+    const directMatch = this.readChordRoot(token, start);
+    if (directMatch) {
+      return {root: directMatch, length: directMatch.length, wasAlias: false};
+    }
+
+    const aliasMatch = Object.entries(this.alternativeChordRoots).find(([alias]) => token.startsWith(alias, start));
+    if (!aliasMatch) {
+      return null;
+    }
+
+    return {root: aliasMatch[1], length: aliasMatch[0].length, wasAlias: true};
+  }
+
+  private readChordSuffix(token: string, start: number): string {
+    let cursor = start;
+    let suffix = '';
+
+    while (cursor < token.length) {
+      const keyword = this.suffixKeywords.find(entry => token.startsWith(entry, cursor));
+      if (keyword) {
+        suffix += keyword;
+        cursor += keyword.length;
+        continue;
+      }
+
+      const char = token[cursor];
+      if (this.isDigit(char) || this.suffixChars.has(char)) {
+        suffix += char;
+        cursor += 1;
+        continue;
+      }
+
+      break;
+    }
+
+    return suffix;
+  }
+
+  private readValidationChordSuffix(token: string, start: number): string {
+    let cursor = start;
+    let suffix = '';
+
+    while (cursor < token.length) {
+      const keyword = this.suffixKeywords.find(entry => token.slice(cursor, cursor + entry.length).toLowerCase() === entry);
+      if (keyword) {
+        suffix += token.slice(cursor, cursor + keyword.length);
+        cursor += keyword.length;
+        continue;
+      }
+
+      const char = token[cursor];
+      if (this.isDigit(char) || this.suffixChars.has(char)) {
+        suffix += char;
+        cursor += 1;
+        continue;
+      }
+
+      break;
+    }
+
+    return suffix;
+  }
+
+  private isDigit(char: string | undefined): boolean {
+    return !!char && char >= '0' && char <= '9';
+  }
+
+  private parseValidationToken(token: string): ParsedValidationToken | null {
+    const decoratedToken = this.splitTokenDecorators(token);
+    const root = this.readValidationChordRoot(decoratedToken.core, 0);
+    if (!root) {
+      return null;
+    }
+
+    let cursor = root.length;
+    const suffix = this.readValidationChordSuffix(decoratedToken.core, cursor);
+    cursor += suffix.length;
+
+    let slashChord: string | null = null;
+    let slashWasAlias = false;
+    if (decoratedToken.core[cursor] === '/') {
+      const slash = this.readValidationChordRoot(decoratedToken.core, cursor + 1);
+      if (!slash) {
+        return null;
+      }
+      slashChord = slash.root;
+      slashWasAlias = slash.wasAlias;
+      cursor += 1 + slash.length;
+    }
+
+    if (cursor !== decoratedToken.core.length) {
+      return null;
+    }
+
+    return {
+      prefix: decoratedToken.prefix,
+      root: root.root,
+      suffix,
+      slashChord,
+      rootWasAlias: root.wasAlias,
+      slashWasAlias,
+      tokenSuffix: decoratedToken.suffix,
+    };
+  }
+
+  private createValidationIssue(line: string, lineNumber: number, token: string, parsed: ParsedValidationToken): ChordValidationIssue | null {
+    const suggestion = this.getCanonicalChordToken(parsed);
+    if (suggestion === token) {
+      return null;
+    }
+
+    if (parsed.rootWasAlias || parsed.slashWasAlias) {
+      return {
+        lineNumber,
+        lineText: line,
+        token,
+        suggestion,
+        reason: 'alias',
+        message: `Bitte #/b statt is/es verwenden: ${suggestion}`,
+      };
+    }
+
+    const descriptor = this.parseChordAddDescriptor(parsed.suffix);
+    if (descriptor?.quality === 'minor' && this.isMajorRoot(parsed.root)) {
+      return {
+        lineNumber,
+        lineText: line,
+        token,
+        suggestion,
+        reason: 'minor_format',
+        message: `Mollakkorde bitte mit kleinem Grundton schreiben: ${suggestion}`,
+      };
+    }
+
+    if (this.isMinorRoot(parsed.root) && descriptor?.quality === 'major') {
+      return {
+        lineNumber,
+        lineText: line,
+        token,
+        suggestion,
+        reason: 'major_format',
+        message: `Durakkorde bitte mit grossem Grundton schreiben: ${suggestion}`,
+      };
+    }
+
+    if (parsed.suffix !== this.normalizeSuffix(parsed.suffix)) {
+      return {
+        lineNumber,
+        lineText: line,
+        token,
+        suggestion,
+        reason: 'invalid_suffix',
+        message: `Bitte die vorgegebene Akkordschreibweise verwenden: ${suggestion}`,
+      };
+    }
+
+    return null;
+  }
+
+  private createUnknownTokenIssue(line: string, lineNumber: number, token: string): ChordValidationIssue {
+    return {
+      lineNumber,
+      lineText: line,
+      token,
+      suggestion: null,
+      reason: 'unknown_token',
+      message: 'Unbekannter Akkord oder falsche Schreibweise',
+    };
+  }
+
+  private createTabCharacterIssue(line: string, lineNumber: number): ChordValidationIssue {
+    return {
+      lineNumber,
+      lineText: line,
+      token: '\t',
+      suggestion: null,
+      reason: 'tab_character',
+      message: 'Tabulatoren sind in Akkordzeilen nicht erlaubt, bitte Leerzeichen verwenden',
+    };
+  }
+
+  private getCanonicalChordToken(parsed: ParsedValidationToken): string {
+    const descriptor = this.parseChordAddDescriptor(parsed.suffix);
+    const normalizedSuffix = this.normalizeSuffix(parsed.suffix);
+
+    let root = parsed.root;
+    let suffix = normalizedSuffix;
+
+    if (descriptor?.quality === 'minor') {
+      root = this.toMinorRoot(root);
+      suffix = this.stripLeadingMinorMarker(normalizedSuffix);
+    } else if (descriptor?.quality === 'major') {
+      root = this.toMajorRoot(root);
+      suffix = this.stripLeadingDurMarker(normalizedSuffix);
+    }
+
+    const slashChord = parsed.slashChord ? this.toMajorRoot(parsed.slashChord) : null;
+
+    return parsed.prefix + root + suffix + (slashChord ? `/${slashChord}` : '') + parsed.tokenSuffix;
+  }
+
+  private normalizeSuffix(suffix: string): string {
+    if (!suffix) {
+      return suffix;
+    }
+
+    let rest = suffix;
+    let normalized = '';
+
+    const prefixMap: Array<[string, string]> = [
+      ['moll', 'moll'],
+      ['min', 'min'],
+      ['maj', 'maj'],
+      ['dur', 'dur'],
+      ['dim', 'dim'],
+      ['verm', 'verm'],
+      ['aug', 'aug'],
+      ['sus', 'sus'],
+      ['add', 'add'],
+      ['m', 'm'],
+    ];
+
+    while (rest.length > 0) {
+      const keyword = prefixMap.find(([key]) => rest.slice(0, key.length).toLowerCase() === key);
+      if (keyword) {
+        normalized += keyword[1];
+        rest = rest.slice(keyword[0].length);
+        continue;
+      }
+
+      normalized += rest[0];
+      rest = rest.slice(1);
+    }
+
+    return normalized;
+  }
+
+  private stripLeadingMinorMarker(suffix: string): string {
+    return suffix.replace(/^(moll|min|m)/, '');
+  }
+
+  private stripLeadingDurMarker(suffix: string): string {
+    return suffix.replace(/^dur/, '');
+  }
+
+  private isMajorRoot(root: string): boolean {
+    return root[0] === root[0].toUpperCase();
+  }
+
+  private isMinorRoot(root: string): boolean {
+    return root[0] === root[0].toLowerCase();
+  }
+
+  private toMinorRoot(root: string): string {
+    return root[0].toLowerCase() + root.slice(1);
+  }
+
+  private toMajorRoot(root: string): string {
+    return root[0].toUpperCase() + root.slice(1);
+  }
+
+  private splitTokenDecorators(token: string): {prefix: string; core: string; suffix: string} {
+    let prefix = '';
+    let suffix = '';
+    let core = token;
+
+    while (core.startsWith('(') && !this.isFullyWrappedByOuterParentheses(core)) {
+      const matchingClosingParen = this.findMatchingClosingParen(core, 0);
+      if (matchingClosingParen !== -1) {
+        break;
+      }
+
+      prefix += '(';
+      core = core.slice(1);
+    }
+
+    while (core.endsWith(')') && !this.isFullyWrappedByOuterParentheses(core)) {
+      const matchingOpeningParen = this.findMatchingOpeningParen(core, core.length - 1);
+      if (matchingOpeningParen !== -1) {
+        break;
+      }
+
+      suffix = ')' + suffix;
+      core = core.slice(0, -1);
+    }
+
+    while (this.isFullyWrappedByOuterParentheses(core)) {
+      prefix += '(';
+      suffix = ')' + suffix;
+      core = core.slice(1, -1);
+    }
+
+    return {
+      prefix,
+      core,
+      suffix,
+    };
+  }
+
+  private isFullyWrappedByOuterParentheses(value: string): boolean {
+    if (!value.startsWith('(') || !value.endsWith(')')) {
+      return false;
+    }
+
+    return this.findMatchingClosingParen(value, 0) === value.length - 1;
+  }
+
+  private findMatchingClosingParen(value: string, start: number): number {
+    let depth = 0;
+    for (let i = start; i < value.length; i++) {
+      if (value[i] === '(') {
+        depth++;
+      } else if (value[i] === ')') {
+        depth--;
+        if (depth === 0) {
+          return i;
+        }
+        if (depth < 0) {
+          return -1;
+        }
+      }
+    }
+
+    return -1;
+  }
+
+  private findMatchingOpeningParen(value: string, end: number): number {
+    let depth = 0;
+    for (let i = end; i >= 0; i--) {
+      if (value[i] === ')') {
+        depth++;
+      } else if (value[i] === '(') {
+        depth--;
+        if (depth === 0) {
+          return i;
+        }
+        if (depth < 0) {
+          return -1;
+        }
+      }
+    }
+
+    return -1;
+  }
+
+  private parseChordAddDescriptor(suffix: string | null): ChordAddDescriptor | null {
+    if (!suffix) {
+      return null;
+    }
+
+    let rest = suffix;
+    let quality: ChordAddDescriptor['quality'] = null;
+
+    const qualityMatchers: Array<[string, NonNullable<ChordAddDescriptor['quality']>]> = [
+      ['moll', 'minor'],
+      ['min', 'minor'],
+      ['maj', 'major'],
+      ['dur', 'major'],
+      ['dim', 'diminished'],
+      ['verm', 'diminished'],
+      ['aug', 'augmented'],
+      ['m', 'minor'],
+    ];
+
+    for (const [prefix, normalized] of qualityMatchers) {
+      if (rest.startsWith(prefix)) {
+        quality = normalized;
+        rest = rest.slice(prefix.length);
+        break;
+      }
+    }
+
+    const descriptor: ChordAddDescriptor = {
+      raw: suffix,
+      quality,
+      extensions: [],
+      additions: [],
+      suspensions: [],
+      alterations: [],
+      modifiers: [],
+    };
+
+    while (rest.length > 0) {
+      const additionMatch = rest.match(/^add([#b+-]?\d+)/);
+      if (additionMatch) {
+        descriptor.additions.push(additionMatch[1]);
+        rest = rest.slice(additionMatch[0].length);
+        continue;
+      }
+
+      const suspensionMatch = rest.match(/^sus(\d*)/);
+      if (suspensionMatch) {
+        descriptor.suspensions.push(suspensionMatch[1] || 'sus');
+        rest = rest.slice(suspensionMatch[0].length);
+        continue;
+      }
+
+      const extensionMatch = rest.match(/^\d+/);
+      if (extensionMatch) {
+        descriptor.extensions.push(extensionMatch[0]);
+        rest = rest.slice(extensionMatch[0].length);
+        continue;
+      }
+
+      const alterationMatch = rest.match(/^[#b+-]\d+/);
+      if (alterationMatch) {
+        descriptor.alterations.push(alterationMatch[0]);
+        rest = rest.slice(alterationMatch[0].length);
+        continue;
+      }
+
+      const modifierMatch = rest.match(/^\([^)]*\)/);
+      if (modifierMatch) {
+        descriptor.modifiers.push(modifierMatch[0]);
+        rest = rest.slice(modifierMatch[0].length);
+        continue;
+      }
+
+      descriptor.modifiers.push(rest);
+      break;
+    }
+
+    return descriptor;
   }
 }

src/app/modules/songs/services/transpose.service.spec.ts

@@ -1,6 +1,8 @@
 import {TestBed} from '@angular/core/testing';
 
 import {TransposeService} from './transpose.service';
+import {LineType} from './line-type';
+import {Line} from './line';
 
 describe('TransposeService', () => {
   let service: TransposeService;
@@ -11,8 +13,7 @@ describe('TransposeService', () => {
   });
 
   it('should create map upwards', () => {
-    const distance = service.getDistance('D', 'G');
+    const map = service.getMap('D', 'G');
-    const map = service.getMap('D', distance);
 
     if (map) {
       void expect(map['D']).toBe('G');
@@ -20,11 +21,65 @@ describe('TransposeService', () => {
   });
 
   it('should create map downwards', () => {
-    const distance = service.getDistance('G', 'D');
+    const map = service.getMap('G', 'D');
-    const map = service.getMap('G', distance);
 
     if (map) {
       void expect(map['G']).toBe('D');
     }
   });
+
+  it('should transpose enharmonic targets by semitone distance', () => {
+    const distance = service.getDistance('C', 'Db');
+    const map = service.getMap('C', 'Db');
+
+    void expect(distance).toBe(1);
+    void expect(map?.['C']).toBe('Db');
+    void expect(map?.['G']).toBe('Ab');
+  });
+
+  it('should keep german B/H notation consistent', () => {
+    const distance = service.getDistance('H', 'C');
+    const map = service.getMap('H', 'C');
+
+    void expect(distance).toBe(1);
+    void expect(map?.['H']).toBe('C');
+    void expect(map?.['B']).toBe('H');
+  });
+
+  it('should render unknown chords as X', () => {
+    const line: Line = {
+      type: LineType.chord,
+      text: '',
+      chords: [{chord: 'Q', add: 'sus4', slashChord: null, position: 0, length: 1}],
+    };
+
+    const rendered = service.renderChords(line);
+
+    void expect(rendered.text).toBe('Xsus4');
+  });
+
+  it('should render unknown slash chords as X', () => {
+    const line: Line = {
+      type: LineType.chord,
+      text: '',
+      chords: [{chord: 'C', add: null, slashChord: 'Q', position: 0, length: 1}],
+    };
+
+    const rendered = service.renderChords(line);
+
+    void expect(rendered.text).toBe('C/X');
+  });
+
+  it('should transpose lines with long chord positions without truncating', () => {
+    const line: Line = {
+      type: LineType.chord,
+      text: '',
+      chords: [{chord: 'C', add: null, slashChord: null, position: 120, length: 1}],
+    };
+
+    const rendered = service.renderChords(line);
+
+    void expect(rendered.text.length).toBe(121);
+    void expect(rendered.text.endsWith('C')).toBeTrue();
+  });
 });

src/app/modules/songs/services/transpose.service.ts

@@ -5,16 +5,69 @@ import {Chord} from './chord';
 import {Line} from './line';
 
 type TransposeMap = {[key: string]: string};
+type ScaleVariants = [string[], string[]];
 
 @Injectable({
   providedIn: 'root',
 })
 export class TransposeService {
+  private readonly enharmonicAliases: Array<[string, string]> = [
+    ['C#', 'Db'],
+    ['D#', 'Eb'],
+    ['F#', 'Gb'],
+    ['G#', 'Ab'],
+    ['A#', 'B'],
+    ['c#', 'db'],
+    ['d#', 'eb'],
+    ['f#', 'gb'],
+    ['g#', 'ab'],
+    ['a#', 'b'],
+  ];
+
+  private readonly keyToSemitone: Record<string, number> = {
+    C: 0,
+    'C#': 1,
+    Db: 1,
+    D: 2,
+    'D#': 3,
+    Eb: 3,
+    E: 4,
+    F: 5,
+    'F#': 6,
+    Gb: 6,
+    G: 7,
+    'G#': 8,
+    Ab: 8,
+    A: 9,
+    'A#': 10,
+    B: 10,
+    H: 11,
+    c: 0,
+    'c#': 1,
+    db: 1,
+    d: 2,
+    'd#': 3,
+    eb: 3,
+    e: 4,
+    f: 5,
+    'f#': 6,
+    gb: 6,
+    g: 7,
+    'g#': 8,
+    ab: 8,
+    a: 9,
+    'a#': 10,
+    b: 10,
+    h: 11,
+  };
+
+  private readonly mapCache = new Map<string, TransposeMap>();
+
   public transpose(line: Line, baseKey: string, targetKey: string): Line {
     if (line.type !== LineType.chord || !line.chords) return line;
 
     const difference = this.getDistance(baseKey, targetKey);
-    const map = this.getMap(baseKey, difference);
+    const map = this.getMap(baseKey, targetKey);
 
     const chords = difference !== 0 && map ? line.chords.map(chord => this.transposeChord(chord, map)) : line.chords;
     const renderedLine = this.renderLine(chords);
@@ -32,32 +85,59 @@ export class TransposeService {
   }
 
   public getDistance(baseKey: string, targetKey: string): number {
-    const scale = getScaleType(baseKey);
+    const baseSemitone = this.getSemitone(baseKey);
-    return scale ? (scale[0].indexOf(targetKey) - scale[0].indexOf(baseKey) ?? scale[1].indexOf(targetKey) - scale[1].indexOf(baseKey)) % 12 : 0;
+    const targetSemitone = this.getSemitone(targetKey);
+
+    if (baseSemitone === undefined || targetSemitone === undefined) {
+      return 0;
     }
 
-  public getMap(baseKey: string, difference: number): TransposeMap | null {
+    return (targetSemitone - baseSemitone + 12) % 12;
-    const scale = getScaleType(baseKey);
+  }
-    if (!scale) {
+
+  public getMap(baseKey: string, targetKey: string): TransposeMap | null {
+    const cacheKey = `${baseKey}:${targetKey}`;
+    const cachedMap = this.mapCache.get(cacheKey);
+    if (cachedMap) {
+      return cachedMap;
+    }
+
+    const sourceScales = this.getScaleVariants(baseKey);
+    const targetScales = this.getScaleVariants(targetKey);
+    if (!sourceScales || !targetScales) {
       return null;
     }
-    const map: {[key: string]: string} = {};
+
+    const difference = this.getDistance(baseKey, targetKey);
+    const map: TransposeMap = {};
+    sourceScales.forEach((sourceScale, scaleIndex) => {
+      const targetScale = targetScales[scaleIndex];
       for (let i = 0; i < 12; i++) {
-      const source = scale[0][i];
+        const source = sourceScale[i];
         const mappedIndex = (i + difference + 12) % 12;
-      map[source] = scale[0][mappedIndex];
+        map[source] = targetScale[mappedIndex];
       }
-    for (let i = 0; i < 12; i++) {
+    });
-      const source = scale[1][i];
+
-      const mappedIndex = (i + difference + 12) % 12;
+    this.enharmonicAliases.forEach(([left, right]) => {
-      map[source] = scale[1][mappedIndex];
+      if (map[left] && !map[right]) {
+        map[right] = map[left];
       }
+      if (map[right] && !map[left]) {
+        map[left] = map[right];
+      }
+    });
+
+    this.mapCache.set(cacheKey, map);
     return map;
   }
 
   private transposeChord(chord: Chord, map: TransposeMap): Chord {
-    const translatedChord = map[chord.chord];
+    // Intentional fallback: unknown chord tokens must stay visibly invalid as "X".
-    const translatedSlashChord = chord.slashChord ? map[chord.slashChord] : null;
+    // Do not replace this with the original token without explicit product approval.
+    const translatedChord = map[chord.chord] ?? 'X';
+    const translatedSlashChord = chord.slashChord ? (map[chord.slashChord] ?? 'X') : null;
+
     return {
       ...chord,
       chord: translatedChord,
@@ -66,23 +146,46 @@ export class TransposeService {
   }
 
   private renderLine(chords: Chord[]): string {
-    let template = '                                                                                                    ';
+    const width = chords.reduce((max, chord) => {
+      return Math.max(max, chord.position + this.renderChord(chord).length);
+    }, 0);
+
+    const buffer = Array.from({length: width}, () => ' ');
 
     chords.forEach(chord => {
       const pos = chord.position;
       const renderedChord = this.renderChord(chord);
-      const newLength = renderedChord.length;
+      const requiredLength = pos + renderedChord.length;
 
-      const pre = template.substr(0, pos);
+      while (buffer.length < requiredLength) {
-      const post = template.substr(pos + newLength);
+        buffer.push(' ');
+      }
 
-      template = pre + renderedChord + post;
+      for (let i = 0; i < renderedChord.length; i++) {
+        buffer[pos + i] = renderedChord[i];
+      }
     });
 
-    return template.trimRight();
+    return buffer.join('').trimEnd();
   }
 
-  private renderChord(chord: Chord) {
+  private renderChord(chord: Chord): string {
-    return scaleMapping[chord.chord] + (chord.add ? chord.add : '') + (chord.slashChord ? '/' + scaleMapping[chord.slashChord] : '');
+    // Intentional fallback: unknown chord tokens must stay visibly invalid as "X".
+    // Do not replace this with the original token without explicit product approval.
+    const renderedChord = scaleMapping[chord.chord] ?? 'X';
+    const renderedSlashChord = chord.slashChord ? (scaleMapping[chord.slashChord] ?? 'X') : '';
+    const prefix = chord.prefix ?? '';
+    const suffix = chord.suffix ?? '';
+
+    return prefix + renderedChord + (chord.add ?? '') + (renderedSlashChord ? '/' + renderedSlashChord : '') + suffix;
+  }
+
+  private getSemitone(key: string): number | undefined {
+    return this.keyToSemitone[key];
+  }
+
+  private getScaleVariants(key: string): ScaleVariants | null {
+    const scales = getScaleType(key);
+    return scales ? [scales[0], scales[1]] : null;
   }
 }

src/app/modules/songs/services/upload.service.spec.ts

@@ -1,12 +1,59 @@
 import {TestBed} from '@angular/core/testing';
-
+import {Storage} from '@angular/fire/storage';
+import {FileDataService} from './file-data.service';
+import {Upload} from './upload';
 import {UploadService} from './upload.service';
 
-describe('UploadServiceService', () => {
+describe('UploadService', () => {
-  beforeEach(() => void TestBed.configureTestingModule({}));
+  let service: UploadService;
+  let fileDataServiceSpy: jasmine.SpyObj<FileDataService>;
+  type UploadTaskLike = {
+    on: (event: string, progress: (snapshot: {bytesTransferred: number; totalBytes: number}) => void, error: () => void, success: () => void) => void;
+  };
+  type UploadServiceInternals = UploadService & {
+    startUpload: (path: string, file: File) => UploadTaskLike;
+  };
+
+  beforeEach(async () => {
+    fileDataServiceSpy = jasmine.createSpyObj<FileDataService>('FileDataService', ['set']);
+    fileDataServiceSpy.set.and.resolveTo('file-1');
+
+    await TestBed.configureTestingModule({
+      providers: [
+        {provide: Storage, useValue: {app: 'test-storage'}},
+        {provide: FileDataService, useValue: fileDataServiceSpy},
+      ],
+    });
+
+    service = TestBed.inject(UploadService);
+  });
 
   it('should be created', () => {
-    const service: UploadService = TestBed.inject(UploadService);
+    expect(service).toBeTruthy();
-    void expect(service).toBeTruthy();
+  });
+
+  it('should upload the file, update progress and persist file metadata on success', async () => {
+    const task: UploadTaskLike = {
+      on: (event: string, progress: (snapshot: {bytesTransferred: number; totalBytes: number}) => void, error: () => void, success: () => void) => {
+        progress({bytesTransferred: 50, totalBytes: 100});
+        success();
+      },
+    };
+    const uploadSpy = spyOn(service as UploadServiceInternals, 'startUpload').and.returnValue(task);
+    const upload = new Upload(new File(['content'], 'test.pdf', {type: 'application/pdf'}));
+
+    await service.pushUpload('song-1', upload);
+
+    expect(uploadSpy).toHaveBeenCalledWith('/attachments/song-1/test.pdf', upload.file);
+    expect(upload.progress).toBe(50);
+    expect(upload.path).toBe('/attachments/song-1');
+    expect(fileDataServiceSpy.set).toHaveBeenCalledWith(
+      'song-1',
+      jasmine.objectContaining({
+        name: 'test.pdf',
+        path: '/attachments/song-1',
+        createdAt: jasmine.any(Date),
+      })
+    );
   });
 });

src/app/modules/songs/services/upload.service.ts

@@ -1,8 +1,7 @@
-import {Injectable} from '@angular/core';
+import {EnvironmentInjector, Injectable, inject, runInInjectionContext} from '@angular/core';
 import {Upload} from './upload';
 import {FileDataService} from './file-data.service';
-import {AngularFireStorage} from '@angular/fire/compat/storage';
+import {ref, Storage, uploadBytesResumable} from '@angular/fire/storage';
-import {finalize} from 'rxjs/operators';
 import {FileBase} from './fileBase';
 import {FileServer} from './fileServer';
 
@@ -10,26 +9,27 @@ import {FileServer} from './fileServer';
   providedIn: 'root',
 })
 export class UploadService extends FileBase {
-  public constructor(
+  private fileDataService = inject(FileDataService);
-    private fileDataService: FileDataService,
+  private storage = inject(Storage);
-    private angularFireStorage: AngularFireStorage
+  private environmentInjector = inject(EnvironmentInjector);
-  ) {
-    super();
-  }
 
   public pushUpload(songId: string, upload: Upload): void {
     const directory = this.directory(songId);
     const filePath = `${directory}/${upload.file.name}`;
     upload.path = directory;
 
-    const ref = this.angularFireStorage.ref(filePath);
+    const task = runInInjectionContext(this.environmentInjector, () => this.startUpload(filePath, upload.file));
-    const task = ref.put(upload.file);
 
-    task.percentageChanges().subscribe(percent => (upload.progress = percent ?? 0));
+    task.on(
-    task
+      'state_changed',
-      .snapshotChanges()
+      snapshot => {
-      .pipe(finalize(() => void this.saveFileData(songId, upload)))
+        upload.progress = (snapshot.bytesTransferred / snapshot.totalBytes) * 100;
-      .subscribe();
+      },
+      () => {
+        // Keep current UX: upload errors are ignored by this service.
+      },
+      () => void this.saveFileData(songId, upload)
+    );
   }
 
   private async saveFileData(songId: string, upload: Upload) {
@@ -40,4 +40,9 @@ export class UploadService extends FileBase {
     };
     await this.fileDataService.set(songId, file);
   }
+
+  private startUpload(filePath: string, file: File) {
+    const storageRef = ref(this.storage, filePath);
+    return uploadBytesResumable(storageRef, file);
+  }
 }

src/app/modules/songs/song-list/filter/filter.component.html

@@ -9,10 +9,12 @@
       <mat-label>Typ</mat-label>
       <mat-select formControlName="type">
         <mat-option [value]="null">- kein Filter -</mat-option>
-        <mat-option *ngFor="let type of types" [value]="type">{{
+        @for (type of types; track type) {
+          <mat-option [value]="type">{{
             type | songType
             }}
           </mat-option>
+        }
       </mat-select>
     </mat-form-field>
 
@@ -20,10 +22,12 @@
       <mat-label>Tonart</mat-label>
       <mat-select formControlName="key">
         <mat-option [value]="null">- kein Filter -</mat-option>
-        <mat-option *ngFor="let key of keys" [value]="key">{{
+        @for (key of keys; track key) {
+          <mat-option [value]="key">{{
             key | key
             }}
           </mat-option>
+        }
       </mat-select>
     </mat-form-field>
 
@@ -31,10 +35,12 @@
       <mat-label>Rechtlicher Status</mat-label>
       <mat-select formControlName="legalType">
         <mat-option [value]="null">- kein Filter -</mat-option>
-        <mat-option *ngFor="let key of legalType" [value]="key">{{
+        @for (key of legalType; track key) {
+          <mat-option [value]="key">{{
             key | legalType
             }}
           </mat-option>
+        }
       </mat-select>
     </mat-form-field>
 
@@ -42,10 +48,12 @@
       <mat-label>Attribute</mat-label>
       <mat-select formControlName="flag">
         <mat-option [value]="null">- kein Filter -</mat-option>
-        <mat-option *ngFor="let flag of getFlags()" [value]="flag">{{
+        @for (flag of getFlags(); track flag) {
+          <mat-option [value]="flag">{{
             flag
             }}
           </mat-option>
+        }
       </mat-select>
     </mat-form-field>
   </div>

src/app/modules/songs/song-list/filter/filter.component.ts

@@ -1,15 +1,15 @@
-import {Component, Input} from '@angular/core';
+import {Component, Input, inject} from '@angular/core';
-import {ActivatedRoute, Router} from '@angular/router';
 import {ReactiveFormsModule, UntypedFormBuilder, UntypedFormGroup} from '@angular/forms';
 import {SongService} from '../../services/song.service';
 import {FilterValues} from './filter-values';
 import {Song} from '../../services/song';
 import {KEYS} from '../../services/key.helper';
+import {FilterStoreService} from '../../../../services/filter-store.service';
 import {MatFormField, MatLabel} from '@angular/material/form-field';
 import {MatInput} from '@angular/material/input';
 import {MatSelect} from '@angular/material/select';
 import {MatOption} from '@angular/material/core';
-import {NgFor} from '@angular/common';
+
 import {LegalTypePipe} from '../../../../widget-modules/pipes/legal-type-translator/legal-type.pipe';
 import {KeyPipe} from '../../../../widget-modules/pipes/key-translator/key.pipe';
 import {SongTypePipe} from '../../../../widget-modules/pipes/song-type-translater/song-type.pipe';
@@ -18,21 +18,20 @@ import {SongTypePipe} from '../../../../widget-modules/pipes/song-type-translate
   selector: 'app-filter',
   templateUrl: './filter.component.html',
   styleUrls: ['./filter.component.less'],
-  imports: [ReactiveFormsModule, MatFormField, MatLabel, MatInput, MatSelect, MatOption, NgFor, LegalTypePipe, KeyPipe, SongTypePipe],
+  imports: [ReactiveFormsModule, MatFormField, MatLabel, MatInput, MatSelect, MatOption, LegalTypePipe, KeyPipe, SongTypePipe],
 })
 export class FilterComponent {
+  private filterStore = inject(FilterStoreService);
+
   public filterFormGroup: UntypedFormGroup;
-  @Input() public route = '/';
   @Input() public songs: Song[] = [];
   public types = SongService.TYPES;
   public legalType = SongService.LEGAL_TYPE;
   public keys = KEYS;
 
-  public constructor(
+  public constructor() {
-    private router: Router,
+    const fb = inject(UntypedFormBuilder);
-    activatedRoute: ActivatedRoute,
+
-    fb: UntypedFormBuilder
-  ) {
     this.filterFormGroup = fb.group({
       q: '',
       type: '',
@@ -41,20 +40,15 @@ export class FilterComponent {
       flag: '',
     });
 
-    activatedRoute.queryParams.subscribe(params => {
+    this.filterStore.songFilter$.subscribe(filterValues => {
-      const filterValues = params as FilterValues;
+      this.filterFormGroup.patchValue(filterValues, {emitEvent: false});
-      if (filterValues.q) this.filterFormGroup.controls.q.setValue(filterValues.q);
-      if (filterValues.type) this.filterFormGroup.controls.type.setValue(filterValues.type);
-      if (filterValues.key) this.filterFormGroup.controls.key.setValue(filterValues.key);
-      if (filterValues.legalType) this.filterFormGroup.controls.legalType.setValue(filterValues.legalType);
-      if (filterValues.flag) this.filterFormGroup.controls.flag.setValue(filterValues.flag);
     });
 
-    this.filterFormGroup.controls.q.valueChanges.subscribe(_ => void this.filerValueChanged('q', _ as string));
+    this.filterFormGroup.controls.q.valueChanges.subscribe(_ => this.filterValueChanged('q', (_ as string) ?? ''));
-    this.filterFormGroup.controls.key.valueChanges.subscribe(_ => void this.filerValueChanged('key', _ as string));
+    this.filterFormGroup.controls.key.valueChanges.subscribe(_ => this.filterValueChanged('key', (_ as string) ?? ''));
-    this.filterFormGroup.controls.type.valueChanges.subscribe(_ => void this.filerValueChanged('type', _ as string));
+    this.filterFormGroup.controls.type.valueChanges.subscribe(_ => this.filterValueChanged('type', (_ as string) ?? ''));
-    this.filterFormGroup.controls.legalType.valueChanges.subscribe(_ => void this.filerValueChanged('legalType', _ as string));
+    this.filterFormGroup.controls.legalType.valueChanges.subscribe(_ => this.filterValueChanged('legalType', (_ as string) ?? ''));
-    this.filterFormGroup.controls.flag.valueChanges.subscribe(_ => void this.filerValueChanged('flag', _ as string));
+    this.filterFormGroup.controls.flag.valueChanges.subscribe(_ => this.filterValueChanged('flag', (_ as string) ?? ''));
   }
 
   public getFlags(): string[] {
@@ -68,11 +62,7 @@ export class FilterComponent {
     return flags.filter((n, i) => flags.indexOf(n) === i);
   }
 
-  private async filerValueChanged(key: string, value: string): Promise<void> {
+  private filterValueChanged(key: keyof FilterValues, value: string): void {
-    const route = this.router.createUrlTree([this.route], {
+    this.filterStore.updateSongFilter({[key]: value} as Partial<FilterValues>);
-      queryParams: {[key]: value},
-      queryParamsHandling: 'merge',
-    });
-    await this.router.navigateByUrl(route);
   }
 }

src/app/modules/songs/song-list/song-list.component.html

@@ -1,30 +1,45 @@
-<div *ngIf="songs$ | async as songs">
+@if (songs$ | async; as songs) {
+  <div>
     <app-list-header [anyFilterActive]="anyFilterActive">
-    <app-filter [songs]="songs" route="songs"></app-filter>
+      <app-filter [songs]="songs"></app-filter>
     </app-list-header>
-
     <app-card [padding]="false">
-    <div *ngFor="let song of songs; trackBy: trackBy" [routerLink]="song.id" class="list-item">
+      @for (song of songs; track trackBy($index, song)) {
+        <div [routerLink]="song.id" class="list-item">
           <div class="number">{{ song.number }}</div>
-      <div>{{ song.title }}</div>
+          <div class="title">
+            <span>{{ song.title }}</span>
+            @if (song.hasChordValidationIssues) {
+              <span class="validation-star" title="Akkord-Validierungsfehler vorhanden">*</span>
+            }
+          </div>
           <div>
             <ng-container *appRole="['contributor']">
-          <div *ngIf="song.status === 'draft'" class="warning">
+              @if (song.status === 'draft') {
+                <div class="warning">
                   <fa-icon [icon]="faDraft"></fa-icon>
                 </div>
-          <div *ngIf="song.status === 'set'" class="neutral">
+              }
+              @if (song.status === 'set') {
+                <div class="neutral">
                   <fa-icon [icon]="faDraft"></fa-icon>
                 </div>
-          <div *ngIf="song.status === 'final'" class="success">
+              }
+              @if (song.status === 'final') {
+                <div class="success">
                   <fa-icon [icon]="faFinal"></fa-icon>
                 </div>
+              }
             </ng-container>
-        <div *ngIf="song.legalType === 'open'" class="warning">
+            @if (song.legalType === 'open') {
+              <div class="warning">
                 <fa-icon [icon]="faLegal"></fa-icon>
               </div>
+            }
           </div>
           <div>{{ song.key }}</div>
         </div>
-
+      }
     </app-card>
-</div>
+  </div>
+}

src/app/modules/songs/song-list/song-list.component.less

@@ -1,5 +1,3 @@
-@import "../../../../styles/styles";
-
 .list-item {
   padding: 5px 20px;
   display: grid;
@@ -11,13 +9,14 @@
   }
 
   cursor: pointer;
+  transition: var(--transition);
 
   &:hover {
-    background: @primary-color;
+    background: var(--hover-background);
-    color: #fff;
+    color: var(--text);
 
     .warning {
-      color: #fff;
+      color: var(--danger);
     }
   }
 }
@@ -28,18 +27,27 @@
   text-align: right;
 }
 
+.title {
+  gap: 6px;
+}
+
+.validation-star {
+  color: var(--danger);
+  font-weight: bold;
+}
+
 .neutral, .warning, .success {
   width: 30px;
 }
 
 .neutral {
-  color: #888;
+  color: var(--text-soft);
 }
 
 .warning {
-  color: #ba3500;
+  color: var(--danger);
 }
 
 .success {
-  color: #307501;
+  color: var(--success);
 }

src/app/modules/songs/song-list/song-list.component.spec.ts

@@ -12,7 +12,7 @@ describe('SongListComponent', () => {
   const songs = [{title: 'title1'}];
 
   const mockSongService = {
-    list: () => of(songs),
+    list$: () => of(songs),
   };
 
   beforeEach(waitForAsync(() => {

src/app/modules/songs/song-list/song-list.component.ts

@@ -1,5 +1,4 @@
-import {ChangeDetectionStrategy, Component, OnDestroy, OnInit} from '@angular/core';
+import {ChangeDetectionStrategy, Component, inject} from '@angular/core';
-import {SongService} from '../services/song.service';
 import {Song} from '../services/song';
 import {map} from 'rxjs/operators';
 import {combineLatest, Observable} from 'rxjs';
@@ -7,59 +6,54 @@ import {fade} from '../../../animations';
 import {ActivatedRoute, RouterLink} from '@angular/router';
 import {filterSong} from '../../../services/filter.helper';
 import {FilterValues} from './filter/filter-values';
-import {ScrollService} from '../../../services/scroll.service';
 import {faBalanceScaleRight, faCheck, faPencilRuler} from '@fortawesome/free-solid-svg-icons';
-import {AsyncPipe, NgFor, NgIf} from '@angular/common';
+import {TextRenderingService} from '../services/text-rendering.service';
+import {FilterStoreService} from '../../../services/filter-store.service';
+import {AsyncPipe} from '@angular/common';
 import {ListHeaderComponent} from '../../../widget-modules/components/list-header/list-header.component';
 import {FilterComponent} from './filter/filter.component';
 import {CardComponent} from '../../../widget-modules/components/card/card.component';
 import {RoleDirective} from '../../../services/user/role.directive';
 import {FaIconComponent} from '@fortawesome/angular-fontawesome';
 
+interface SongListItem extends Song {
+  hasChordValidationIssues: boolean;
+}
+
 @Component({
   selector: 'app-songs',
   templateUrl: './song-list.component.html',
   styleUrls: ['./song-list.component.less'],
   changeDetection: ChangeDetectionStrategy.OnPush,
   animations: [fade],
-  imports: [NgIf, ListHeaderComponent, FilterComponent, CardComponent, NgFor, RouterLink, RoleDirective, FaIconComponent, AsyncPipe],
+  imports: [ListHeaderComponent, FilterComponent, CardComponent, RouterLink, RoleDirective, FaIconComponent, AsyncPipe],
 })
-export class SongListComponent implements OnInit, OnDestroy {
+export class SongListComponent {
+  private route = inject(ActivatedRoute);
+  private textRenderingService = inject(TextRenderingService);
+  private filterStore = inject(FilterStoreService);
+
   public anyFilterActive = false;
-  public songs$: Observable<Song[]> | null = combineLatest([
+  public songs$: Observable<SongListItem[]> = combineLatest([
-    this.activatedRoute.queryParams.pipe(map(_ => _ as FilterValues)),
+    this.filterStore.songFilter$,
-    this.activatedRoute.data.pipe(
+    this.route.data.pipe(map(data => (data['songs'] as Song[]).slice().sort((a, b) => a.number - b.number))),
-      map(data => data.songList as Song[]),
-      map(songs => songs.sort((a, b) => a.number - b.number))
-    ),
   ]).pipe(
-    map(_ => {
+    map(([filter, songs]) => {
-      const songs = _[1];
-      const filter = _[0];
       this.anyFilterActive = this.checkIfFilterActive(filter);
-      return songs.filter(song => this.filter(song, filter)).sort((a, b) => a.title?.localeCompare(b.title));
+      return songs
+        .filter(song => this.filter(song, filter))
+        .map(song => ({
+          ...song,
+          hasChordValidationIssues: this.textRenderingService.validateChordNotation(song.text ?? '').length > 0,
+        }))
+        .sort((a, b) => a.title?.localeCompare(b.title));
     })
   );
   public faLegal = faBalanceScaleRight;
   public faDraft = faPencilRuler;
   public faFinal = faCheck;
 
-  public constructor(
+  public trackBy = (index: number, show: SongListItem) => show.id;
-    private songService: SongService,
-    private activatedRoute: ActivatedRoute,
-    private scrollService: ScrollService
-  ) {}
-
-  public ngOnInit(): void {
-    setTimeout(() => this.scrollService.restoreScrollPositionFor('songlist'), 100);
-    setTimeout(() => this.scrollService.restoreScrollPositionFor('songlist'), 300);
-  }
-
-  public ngOnDestroy(): void {
-    this.scrollService.storeScrollPositionFor('songlist');
-  }
-
-  public trackBy = (index: number, show: Song) => show.id;
 
   private filter(song: Song, filter: FilterValues): boolean {
     let baseFilter = filterSong(song, filter.q);

src/app/modules/songs/song/edit/edit-file/edit-file.component.html

@@ -1,5 +1,6 @@
 <app-card heading="Angehängte Dateien">
-  <div *ngIf="currentUpload">
+  @if (currentUpload) {
+    <div>
       <div class="progress">
         <div
           [ngStyle]="{ width: currentUpload?.progress + '%' }"
@@ -9,6 +10,7 @@
       Progress: {{ currentUpload?.name }} | {{ currentUpload?.progress }}%
       Complete
     </div>
+  }
   <div class="upload">
     <label>
       <input (change)="detectFiles($event)" type="file" />
@@ -23,7 +25,9 @@
     </button>
   </div>
 
-  <p *ngFor="let file of files$ | async">
+  @for (file of files$ | async; track file) {
+    <p>
       <app-file [file]="file" [songId]="songId"></app-file>
     </p>
+  }
 </app-card>

src/app/modules/songs/song/edit/edit-file/edit-file.component.ts

@@ -1,4 +1,4 @@
-import {Component} from '@angular/core';
+import {Component, inject} from '@angular/core';
 import {Upload} from '../../../services/upload';
 import {UploadService} from '../../../services/upload.service';
 import {ActivatedRoute} from '@angular/router';
@@ -7,7 +7,7 @@ import {FileDataService} from '../../../services/file-data.service';
 import {Observable} from 'rxjs';
 import {File} from '../../../services/file';
 import {CardComponent} from '../../../../../widget-modules/components/card/card.component';
-import {AsyncPipe, NgFor, NgIf, NgStyle} from '@angular/common';
+import {AsyncPipe, NgStyle} from '@angular/common';
 import {MatIconButton} from '@angular/material/button';
 import {MatIcon} from '@angular/material/icon';
 import {FileComponent} from './file/file.component';
@@ -16,19 +16,19 @@ import {FileComponent} from './file/file.component';
   selector: 'app-edit-file',
   templateUrl: './edit-file.component.html',
   styleUrls: ['./edit-file.component.less'],
-  imports: [CardComponent, NgIf, NgStyle, MatIconButton, MatIcon, NgFor, FileComponent, AsyncPipe],
+  imports: [CardComponent, NgStyle, MatIconButton, MatIcon, FileComponent, AsyncPipe],
 })
 export class EditFileComponent {
+  private activatedRoute = inject(ActivatedRoute);
+  private uploadService = inject(UploadService);
+  private fileService = inject(FileDataService);
+
   public selectedFiles: FileList | null = null;
   public currentUpload: Upload | null = null;
   public songId: string | null = null;
   public files$: Observable<File[]>;
 
-  public constructor(
+  public constructor() {
-    private activatedRoute: ActivatedRoute,
-    private uploadService: UploadService,
-    private fileService: FileDataService
-  ) {
     this.activatedRoute.params
       .pipe(
         map(param => param as {songId: string}),

src/app/modules/songs/song/edit/edit-file/file/file.component.ts

@@ -1,4 +1,4 @@
-import {Component, Input} from '@angular/core';
+import {Component, Input, inject} from '@angular/core';
 import {Observable} from 'rxjs';
 import {File} from '../../../../services/file';
 import {faTrashAlt} from '@fortawesome/free-solid-svg-icons';
@@ -14,6 +14,8 @@ import {AsyncPipe} from '@angular/common';
   imports: [MatIconButton, FaIconComponent, AsyncPipe],
 })
 export class FileComponent {
+  private fileService = inject(FileService);
+
   public url$: Observable<string> | null = null;
   public name = '';
   public faTrash = faTrashAlt;
@@ -21,8 +23,6 @@ export class FileComponent {
   private fileId: string | null = null;
   private path: string | null = null;
 
-  public constructor(private fileService: FileService) {}
-
   @Input()
   public set file(file: File) {
     this.url$ = this.fileService.getDownloadUrl(file.path + '/' + file.name);

src/app/modules/songs/song/edit/edit-song.guard.spec.ts

@@ -1,5 +1,4 @@
 import {TestBed} from '@angular/core/testing';
-
 import {EditSongGuard} from './edit-song.guard';
 
 describe('EditSongGuard', () => {
@@ -11,6 +10,22 @@ describe('EditSongGuard', () => {
   });
 
   it('should be created', () => {
-    void expect(guard).toBeTruthy();
+    expect(guard).toBeTruthy();
+  });
+
+  it('should allow navigation when there is no nested editSongComponent', () => {
+    const result = guard.canDeactivate({editSongComponent: null} as never, {} as never, {} as never, {} as never);
+
+    expect(result).toBeTrue();
+  });
+
+  it('should delegate to askForSave on the nested editSongComponent', async () => {
+    const nextState = {url: '/songs'} as never;
+    const askForSave = jasmine.createSpy('askForSave').and.resolveTo(true);
+
+    const result = await guard.canDeactivate({editSongComponent: {askForSave}} as never, {} as never, {} as never, nextState);
+
+    expect(askForSave).toHaveBeenCalledWith(nextState);
+    expect(result).toBeTrue();
   });
 });

src/app/modules/songs/song/edit/edit-song/edit-song.component.html

@@ -1,27 +1,31 @@
-<app-card *ngIf="song" [heading]="song.number + ' bearbeiten'" closeLink="../">
+@if (song) {
+  <app-card [heading]="song.number + ' bearbeiten'" closeLink="../">
     <form [formGroup]="form" class="form">
       <mat-form-field appearance="outline">
         <mat-label>Titel</mat-label>
         <input formControlName="title" matInput />
       </mat-form-field>
-
       <div class="fourth">
         <mat-form-field appearance="outline">
           <mat-label>Typ</mat-label>
           <mat-select formControlName="type">
-          <mat-option *ngFor="let type of types" [value]="type">{{
+            @for (type of types; track type) {
+              <mat-option [value]="type">{{
                 type | songType
                 }}
               </mat-option>
+            }
           </mat-select>
         </mat-form-field>
         <mat-form-field appearance="outline">
           <mat-label>Tonart</mat-label>
           <mat-select formControlName="key">
-          <mat-option *ngFor="let key of keys" [value]="key">{{
+            @for (key of keys; track key) {
+              <mat-option [value]="key">{{
                 key | key
                 }}
               </mat-option>
+            }
           </mat-select>
         </mat-form-field>
         <mat-form-field appearance="outline">
@@ -31,14 +35,15 @@
         <mat-form-field appearance="outline">
           <mat-label>Status</mat-label>
           <mat-select formControlName="status">
-          <mat-option *ngFor="let status of status" [value]="status">{{
+            @for (status of status; track status) {
+              <mat-option [value]="status">{{
                 status | status
                 }}
               </mat-option>
+            }
           </mat-select>
         </mat-form-field>
       </div>
-
       <mat-form-field appearance="outline">
         <mat-label>Songtext</mat-label>
         <textarea
@@ -49,9 +54,26 @@
           matInput
         ></textarea>
       </mat-form-field>
-    <div *ngIf="songtextFocus" class="song-text-help">
+      @if (chordValidationIssues.length > 0) {
+        <div class="song-text-validation">
+          <h3>Akkordschreibweise korrigieren</h3>
+          @for (issue of chordValidationIssues; track issue.lineNumber + '-' + issue.token) {
+            <div class="issue">
+              <strong>Zeile {{ issue.lineNumber }}:</strong>
+              <span>{{ issue.message }}</span>
+              <code>{{ issue.token }}</code>
+              @if (issue.suggestion) {
+                <span>-></span>
+                <code>{{ issue.suggestion }}</code>
+              }
+            </div>
+          }
+        </div>
+      }
+      @if (songtextFocus) {
+        <div class="song-text-help">
           <h3>Vorschau</h3>
-      <app-song-text [text]="form.value.text" chordMode="show"></app-song-text>
+          <app-song-text [text]="form.value.text" [validateChordNotation]="true" chordMode="show"></app-song-text>
           <h3>Hinweise zur Bearbeitung</h3>
           <h4>Aufbau</h4>
           Der Liedtext wird hintereinander weg geschrieben. Dabei werden Strophen,
@@ -59,10 +81,8 @@
           <pre>
             Strophe
             Text der ersten Strophe
-
             Strophe
             Text der zweiten Strophe
-
             Refrain
             Und hier der Refrain
           </pre>
@@ -87,7 +107,7 @@
             sed diam nonumy eirmod tempor invidunt ut labore et dolore
           </pre>
         </div>
-
+      }
       <mat-form-field appearance="outline">
         <mat-label>Kommentar</mat-label>
         <textarea
@@ -96,17 +116,17 @@
           matInput
         ></textarea>
       </mat-form-field>
-
       <mat-form-field appearance="outline">
         <mat-chip-grid #chipList>
+          @for (flag of flags; track flag) {
             <mat-chip-row
               (removed)="removeFlag(flag)"
-          *ngFor="let flag of flags"
               [removable]="true"
               >
               {{ flag }}&nbsp;
               <fa-icon (click)="removeFlag(flag)" [icon]="faRemove"></fa-icon>
             </mat-chip-row>
+          }
           <input
             (matChipInputTokenEnd)="addFlag($event)"
             [matChipInputAddOnBlur]="true"
@@ -116,33 +136,34 @@
             />
         </mat-chip-grid>
       </mat-form-field>
-
       <div class="half">
         <mat-form-field appearance="outline">
           <mat-label>Rechtlicher Status</mat-label>
           <mat-select formControlName="legalType">
-          <mat-option *ngFor="let key of legalType" [value]="key">{{
+            @for (key of legalType; track key) {
+              <mat-option [value]="key">{{
                 key | legalType
                 }}
               </mat-option>
+            }
           </mat-select>
         </mat-form-field>
-
         <mat-form-field appearance="outline">
           <mat-label>Rechteinhaber</mat-label>
           <mat-select formControlName="legalOwner">
-          <mat-option *ngFor="let key of legalOwner" [value]="key">{{
+            @for (key of legalOwner; track key) {
+              <mat-option [value]="key">{{
                 key | legalOwner
                 }}
               </mat-option>
+            }
           </mat-select>
         </mat-form-field>
-
         <mat-form-field appearance="outline">
           <mat-label>Rechteinhaber ID (z.B. CCLI Liednummer)</mat-label>
           <input formControlName="legalOwnerId" matInput />
+          @if (form.value.legalOwner === 'CCLI') {
             <a
-          *ngIf="form.value.legalOwner === 'CCLI'"
               class="link-ccli"
               href="https://songselect.ccli.com/Songs/{{ form.value.legalOwnerId }}"
               matSuffix
@@ -154,31 +175,28 @@
               >
               <fa-icon [icon]="faLink"></fa-icon>
             </a>
+          }
         </mat-form-field>
-
         <mat-form-field appearance="outline">
           <mat-label>Künstler</mat-label>
           <input formControlName="artist" matInput />
         </mat-form-field>
-
         <mat-form-field appearance="outline">
           <mat-label>Verlag / Copyright</mat-label>
           <input formControlName="label" matInput />
         </mat-form-field>
-
         <mat-form-field appearance="outline">
           <mat-label>Nutzungsbedingungen</mat-label>
           <input formControlName="termsOfUse" matInput />
         </mat-form-field>
-
         <mat-form-field appearance="outline">
           <mat-label>abweichende Quelle</mat-label>
           <input formControlName="origin" matInput />
         </mat-form-field>
       </div>
     </form>
-
     <app-button-row>
-    <app-button (click)="onSave()" [icon]="faSave">Speichern</app-button>
+      <app-button (click)="onSave()" [disabled]="form.invalid" [icon]="faSave">Speichern</app-button>
     </app-button-row>
-</app-card>
+  </app-card>
+}

src/app/modules/songs/song/edit/edit-song/edit-song.component.less

@@ -4,6 +4,7 @@
 
   > * {
     width: 100%;
+    box-sizing: border-box;
   }
 
   .fourth {
@@ -43,3 +44,30 @@ h4 {
 .song-text-help {
   font-size: 11px;
 }
+
+.song-text-validation {
+  margin: -8px 0 12px;
+  padding: 12px 14px;
+  border-radius: 6px;
+  background: rgba(166, 32, 32, 0.08);
+  border: 1px solid rgba(166, 32, 32, 0.22);
+  color: #7d1919;
+
+  .issue {
+    display: flex;
+    gap: 8px;
+    align-items: baseline;
+    flex-wrap: wrap;
+    margin-top: 6px;
+  }
+
+  code {
+    padding: 1px 4px;
+    border-radius: 4px;
+    background: rgba(125, 25, 25, 0.08);
+  }
+
+  h3 {
+    margin: 0;
+  }
+}

src/app/modules/songs/song/edit/edit-song/edit-song.component.ts

@@ -1,17 +1,20 @@
-import {Component, OnInit} from '@angular/core';
+import {Component, OnInit, inject} from '@angular/core';
 import {Song} from '../../../services/song';
 import {ReactiveFormsModule, UntypedFormGroup} from '@angular/forms';
 import {ActivatedRoute, Router, RouterStateSnapshot} from '@angular/router';
 import {SongService} from '../../../services/song.service';
 import {EditService} from '../edit.service';
 import {first, map, switchMap} from 'rxjs/operators';
+import {startWith} from 'rxjs';
 import {KEYS} from '../../../services/key.helper';
 import {COMMA, ENTER} from '@angular/cdk/keycodes';
 import {MatChipGrid, MatChipInput, MatChipInputEvent, MatChipRow} from '@angular/material/chips';
 import {faExternalLinkAlt, faSave, faTimesCircle} from '@fortawesome/free-solid-svg-icons';
 import {MatDialog} from '@angular/material/dialog';
 import {SaveDialogComponent} from './save-dialog/save-dialog.component';
-import {NgFor, NgIf} from '@angular/common';
+import {TextRenderingService} from '../../../services/text-rendering.service';
+import {ChordValidationIssue} from '../../../services/chord';
+
 import {CardComponent} from '../../../../../widget-modules/components/card/card.component';
 import {MatFormField, MatLabel, MatSuffix} from '@angular/material/form-field';
 import {MatInput} from '@angular/material/input';
@@ -34,14 +37,12 @@ import {StatusPipe} from '../../../../../widget-modules/pipes/status-translater/
   templateUrl: './edit-song.component.html',
   styleUrls: ['./edit-song.component.less'],
   imports: [
-    NgIf,
     CardComponent,
     ReactiveFormsModule,
     MatFormField,
     MatLabel,
     MatInput,
     MatSelect,
-    NgFor,
     MatOption,
     CdkTextareaAutosize,
     SongTextComponent,
@@ -61,6 +62,13 @@ import {StatusPipe} from '../../../../../widget-modules/pipes/status-translater/
   ],
 })
 export class EditSongComponent implements OnInit {
+  private activatedRoute = inject(ActivatedRoute);
+  private songService = inject(SongService);
+  private editService = inject(EditService);
+  private router = inject(Router);
+  private textRenderingService = inject(TextRenderingService);
+  public dialog = inject(MatDialog);
+
   public song: Song | null = null;
   public form: UntypedFormGroup = new UntypedFormGroup({});
   public keys = KEYS;
@@ -74,14 +82,7 @@ export class EditSongComponent implements OnInit {
   public faSave = faSave;
   public faLink = faExternalLinkAlt;
   public songtextFocus = false;
-
+  public chordValidationIssues: ChordValidationIssue[] = [];
-  public constructor(
-    private activatedRoute: ActivatedRoute,
-    private songService: SongService,
-    private editService: EditService,
-    private router: Router,
-    public dialog: MatDialog
-  ) {}
 
   public ngOnInit(): void {
     this.activatedRoute.params
@@ -96,12 +97,15 @@ export class EditSongComponent implements OnInit {
         if (!song) return;
         this.form = this.editService.createSongForm(song);
         this.form.controls.flags.valueChanges.subscribe(_ => this.onFlagsChanged(_ as string));
+        this.form.controls.text.valueChanges.pipe(startWith(this.form.controls.text.value)).subscribe(text => {
+          this.updateChordValidation(text as string);
+        });
         this.onFlagsChanged(this.form.controls.flags.value as string);
       });
   }
 
   public async onSave(): Promise<void> {
-    if (!this.song) return;
+    if (!this.song || this.form.invalid) return;
     const data = this.form.value as Partial<Song>;
     await this.songService.update$(this.song.id, data);
     this.form.markAsPristine();
@@ -153,8 +157,23 @@ export class EditSongComponent implements OnInit {
     this.flags = flagArray.split(';').filter(_ => !!_);
   }
 
+  private updateChordValidation(text: string): void {
+    const control = this.form.controls.text;
+    this.chordValidationIssues = this.textRenderingService.validateChordNotation(text ?? '');
+
+    const errors = {...(control.errors ?? {})};
+    if (this.chordValidationIssues.length > 0) {
+      errors.chordNotation = this.chordValidationIssues;
+      control.setErrors(errors);
+      return;
+    }
+
+    delete errors.chordNotation;
+    control.setErrors(Object.keys(errors).length > 0 ? errors : null);
+  }
+
   private async onSaveDialogAfterClosed(save: boolean, url: string) {
-    if (save && this.song) {
+    if (save && this.song && !this.form.invalid) {
       const data = this.form.value as Partial<Song>;
       await this.songService.update$(this.song.id, data);
     }

src/app/modules/songs/song/edit/edit-song/save-dialog/save-dialog.component.spec.ts

@@ -8,7 +8,7 @@ describe('SaveDialogComponent', () => {
 
   beforeEach(waitForAsync(() => {
     void TestBed.configureTestingModule({
-      declarations: [SaveDialogComponent],
+      imports: [SaveDialogComponent],
     }).compileComponents();
   }));