migrate angular 21 finalize

.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

package.json

@@ -16,7 +16,7 @@
     "@angular/common": "^21.2.2",
     "@angular/compiler": "^21.2.2",
     "@angular/core": "^21.2.2",
-    "@angular/fire": "^21.0.0-rc.0",
+    "@angular/fire": "21.0.0-rc.0",
     "@angular/forms": "^21.2.2",
     "@angular/material": "^21.2.1",
     "@angular/platform-browser": "^21.2.2",
@@ -28,7 +28,6 @@
     "@fortawesome/free-solid-svg-icons": "^7.2.0",
     "docx": "^9.6.0",
     "firebase": "^12.10.0",
-    "lodash": "^4.17.21",
     "ngx-mat-select-search": "^8.0.4",
     "qrcode": "^1.5.4",
     "rxjs": "~7.8.1",
@@ -49,13 +48,12 @@
     "@angular/language-service": "^21.2.2",
     "@types/jasmine": "~6.0.0",
     "@types/jasminewd2": "~2.0.13",
-    "@types/lodash": "^4.17.24",
     "@typescript-eslint/eslint-plugin": "^8.57.0",
     "@typescript-eslint/parser": "^8.57.0",
     "eslint": "^9.39.4",
     "eslint-config-prettier": "^10.1.8",
     "eslint-plugin-prettier": "^5.5.5",
-    "firebase-tools": "^14.27.0",
+    "firebase-tools": "^15.9.1",
     "jasmine-core": "~6.1.0",
     "jasmine-spec-reporter": "~7.0.0",
     "karma": "~6.4.4",

src/app/app.component.ts

@@ -1,4 +1,4 @@
-import {ChangeDetectionStrategy, Component, OnInit} from '@angular/core';
+import {ChangeDetectionStrategy, Component, OnInit, inject} from '@angular/core';
 import {fader} from './animations';
 import {ScrollService} from './services/scroll.service';
 import {register} from 'swiper/element/bundle';
@@ -14,7 +14,9 @@ import {NavigationComponent} from './widget-modules/components/application-frame
   imports: [RouterOutlet, NavigationComponent],
 })
 export class AppComponent implements OnInit {
-  public constructor(private scrollService: ScrollService) {
+  private scrollService = inject(ScrollService);
+
+  public constructor() {
     register();
   }
 

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

@@ -1,4 +1,4 @@
-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';
@@ -12,9 +12,13 @@ import {AsyncPipe} from '@angular/common';
   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.ts

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {Observable} from 'rxjs';
 import {shareReplay} from 'rxjs/operators';
 import {DbService} from 'src/app/services/db.service';
@@ -8,6 +8,8 @@ import {GuestShow} from './guest-show';
   providedIn: 'root',
 })
 export class GuestShowDataService {
+  private dbService = inject(DbService);
+
   private collection = 'guest';
   public list$: Observable<GuestShow[]> = this.dbService.col$<GuestShow>(this.collection).pipe(
     shareReplay({
@@ -16,8 +18,6 @@ export class GuestShowDataService {
     })
   );
 
-  public constructor(private dbService: DbService) {}
-
   public read$: (id: string) => Observable<GuestShow | null> = (id: string): Observable<GuestShow | null> => this.dbService.doc$(`${this.collection}/${id}`);
   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);

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 = {

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

@@ -1,4 +1,4 @@
-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';
@@ -16,17 +16,15 @@ import {ShowTypePipe} from '../../widget-modules/pipes/show-type-translater/show
   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/monitor.component.ts

@@ -1,4 +1,4 @@
-import {ChangeDetectorRef, Component, OnDestroy, OnInit} from '@angular/core';
+import {ChangeDetectorRef, Component, OnDestroy, OnInit, inject} from '@angular/core';
 import {distinctUntilChanged, filter, map, shareReplay, switchMap, takeUntil, tap} from 'rxjs/operators';
 import {ShowService} from '../../shows/services/show.service';
 import {Song} from '../../songs/services/song';
@@ -25,6 +25,12 @@ import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/s
   imports: [LogoComponent, SongTextComponent, LegalComponent, AsyncPipe, DatePipe, ShowTypePipe],
 })
 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;
@@ -38,13 +44,9 @@ export class MonitorComponent implements OnInit, OnDestroy {
   public presentationBackground: PresentationBackground = 'none';
   private destroy$ = new Subject<void>();
 
-  public constructor(
+  public constructor() {
-    private showService: ShowService,
+    const configService = this.configService;
-    private showSongService: ShowSongService,
+
-    private globalSettingsService: GlobalSettingsService,
-    private configService: ConfigService,
-    private cRef: ChangeDetectorRef
-  ) {
     this.config$ = configService.get$();
   }
 

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

@@ -1,4 +1,4 @@
-import {ChangeDetectionStrategy, ChangeDetectorRef, Component, OnDestroy} 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';
@@ -61,6 +61,12 @@ export interface PresentationSong {
   ],
 })
 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$();
@@ -73,14 +79,9 @@ export class RemoteComponent implements OnDestroy {
   public presentationDynamicTextChanged$ = 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,
-    private textRenderingService: TextRenderingService,
-    globalSettingsService: GlobalSettingsService,
-    private cRef: ChangeDetectorRef
-  ) {
     const currentShowId$ = globalSettingsService.get$.pipe(
       filter((settings): settings is NonNullable<typeof settings> => !!settings),
       map(_ => _.currentShow),

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

@@ -1,4 +1,4 @@
-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';
@@ -19,17 +19,15 @@ import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/s
   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.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.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';
@@ -42,6 +42,10 @@ import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/s
   ],
 })
 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;
@@ -52,12 +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.ts

@@ -1,4 +1,4 @@
-import {Component, Input} from '@angular/core';
+import {Component, Input, inject} from '@angular/core';
 import {KeyValue} from '@angular/common';
 import {ActivatedRoute, Router} from '@angular/router';
 import {ReactiveFormsModule, UntypedFormBuilder, UntypedFormGroup} from '@angular/forms';
@@ -9,7 +9,6 @@ import {distinctUntilChanged, map, switchMap} from 'rxjs/operators';
 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 {MatFormField, MatLabel} from '@angular/material/form-field';
 import {MatSelect} from '@angular/material/select';
 import {MatOptgroup, MatOption} from '@angular/material/core';
@@ -22,6 +21,10 @@ import {ShowTypePipe} from '../../../../widget-modules/pipes/show-type-translate
   imports: [ReactiveFormsModule, MatFormField, MatLabel, MatSelect, MatOption, MatOptgroup, ShowTypePipe],
 })
 export class FilterComponent {
+  private router = inject(Router);
+  private showService = inject(ShowService);
+  private userService = inject(UserService);
+
   @Input() public route = '/shows/';
   @Input() public shows: Show[] = [];
 
@@ -38,13 +41,10 @@ export class FilterComponent {
 
   public owners: {key: string; value: string}[] = [];
 
-  public constructor(
+  public constructor() {
-    private router: Router,
+    const activatedRoute = inject(ActivatedRoute);
-    private showService: ShowService,
+    const fb = inject(UntypedFormBuilder);
-    private userService: UserService,
+
-    activatedRoute: ActivatedRoute,
-    fb: UntypedFormBuilder
-  ) {
     this.filterFormGroup = fb.group({
       time: 1,
       owner: null,
@@ -92,7 +92,7 @@ export class FilterComponent {
       map(owners => {
         return owners.sort(dynamicSort('value'));
       }),
-      distinctUntilChanged(isEqual),
+      distinctUntilChanged((left, right) => this.sameOwners(left, right)),
       map(_ => _ as {key: string; value: string}[])
     );
   };
@@ -104,4 +104,12 @@ export class FilterComponent {
     });
     await this.router.navigateByUrl(route);
   }
+
+  private sameOwners(left: {key: string; value: string}[], right: {key: string; value: string}[]): boolean {
+    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.component.ts

@@ -1,4 +1,4 @@
-import {Component} from '@angular/core';
+import {Component, inject} from '@angular/core';
 import {combineLatest} from 'rxjs';
 import {Show} from '../services/show';
 import {fade} from '../../../animations';
@@ -22,8 +22,9 @@ import {SortByPipe} from '../../../widget-modules/pipes/sort-by/sort-by.pipe';
   imports: [RoleDirective, ListHeaderComponent, FilterComponent, CardComponent, ListItemComponent, RouterLink, AsyncPipe, SortByPipe],
 })
 export class ListComponent {
-  public shows$ = this.showService.list$();
+  private showService = inject(ShowService);
-  public privateShows$ = this.showService.list$().pipe(map(show => show.filter(_ => !_.published)));
+  private activatedRoute = inject(ActivatedRoute);
+
   public lastMonths$ = this.activatedRoute.queryParams.pipe(
     map(params => {
       const filterValues = params as FilterValues;
@@ -43,8 +44,9 @@ export class ListComponent {
       return filterValues?.showType;
     })
   );
+  public shows$ = this.showService.list$();
+  public privateShows$ = this.showService.list$().pipe(map(show => show.filter(_ => !_.published)));
   public queriedPublicShows$ = this.lastMonths$.pipe(switchMap(lastMonths => this.showService.listPublicSince$(lastMonths)));
-
   public fallbackPublicShows$ = combineLatest([this.shows$, this.lastMonths$]).pipe(
     map(([shows, lastMonths]) => {
       const startDate = new Date();
@@ -54,7 +56,6 @@ export class ListComponent {
       return shows.filter(show => show.published && !show.archived && show.date.toDate() >= startDate);
     })
   );
-
   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;
@@ -63,10 +64,5 @@ export class ListComponent {
     })
   );
 
-  public constructor(
-    private showService: ShowService,
-    private activatedRoute: ActivatedRoute
-  ) {}
-
   public trackBy = (index: number, show: unknown) => (show as Show).id;
 }

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';
@@ -40,6 +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;
@@ -49,11 +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.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(
         _ =>

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

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {Observable} from 'rxjs';
 import {DbService} from '../../../services/db.service';
 import {Show} from './show';
@@ -9,6 +9,8 @@ import {orderBy, QueryConstraint, Timestamp, where} from '@angular/fire/firestor
   providedIn: 'root',
 })
 export class ShowDataService {
+  private dbService = inject(DbService);
+
   private collection = 'shows';
   public list$: Observable<Show[]> = this.dbService.col$<Show>(this.collection).pipe(
     // server-side ordering cuts client work and keeps stable order across subscribers
@@ -19,8 +21,6 @@ export class ShowDataService {
     })
   );
 
-  public constructor(private dbService: DbService) {}
-
   public listRaw$ = () => this.dbService.col$<Show>(this.collection);
 
   public listPublicSince$(lastMonths: number): Observable<Show[]> {

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

@@ -1,4 +1,4 @@
-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';
@@ -9,12 +9,12 @@ import {shareReplay} from 'rxjs/operators';
   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);

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));

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

@@ -1,4 +1,4 @@
-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';
@@ -10,15 +10,17 @@ 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(
+  public constructor() {
-    private showDataService: ShowDataService,
+    const userService = this.userService;
-    private userService: UserService
+
-  ) {
     userService.user$.subscribe(_ => (this.user = _));
   }
 

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

@@ -1,4 +1,4 @@
-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, shareReplay, switchMap, tap} from 'rxjs/operators';
 import {ActivatedRoute, Router} from '@angular/router';
 import {ShowService} from '../services/show.service';
@@ -80,6 +80,16 @@ 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$: Observable<Show | null> | null = null;
   public songs$: Observable<Song[] | null> | null = null;
   public showSongs: ShowSong[] | null = null;
@@ -105,18 +115,6 @@ export class ShowComponent implements OnInit, OnDestroy {
   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(() => {

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';
@@ -39,6 +39,8 @@ import {ButtonComponent} from '../../../../widget-modules/components/button/butt
   ],
 })
 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;
@@ -55,8 +57,6 @@ 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/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.ts

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {deleteObject, getDownloadURL, ref, Storage} from '@angular/fire/storage';
 import {from, Observable} from 'rxjs';
 import {FileDataService} from './file-data.service';
@@ -7,10 +7,8 @@ import {FileDataService} from './file-data.service';
   providedIn: 'root',
 })
 export class FileService {
-  public constructor(
+  private storage = inject(Storage);
-    private storage: Storage,
+  private fileDataService = inject(FileDataService);
-    private fileDataService: FileDataService
-  ) {}
 
   public getDownloadUrl(path: string): Observable<string> {
     return from(getDownloadURL(ref(this.storage, path)));

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

@@ -2,14 +2,14 @@ import {getScale, scaleMapping} from './key.helper';
 
 describe('key.helper', () => {
   it('should render Gb correctly', () => {
-    expect(scaleMapping['Gb']).toBe('G♭');
+    void expect(scaleMapping['Gb']).toBe('G♭');
   });
 
   it('should expose a sharp-based scale for D', () => {
-    expect(getScale('D')).toEqual(['C', 'C#', 'D', 'D#', 'E', 'F', 'F#', 'G', 'G#', 'A', 'A#', 'H']);
+    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', () => {
-    expect(getScale('Db')).toEqual(['C', 'Db', 'D', 'Eb', 'E', 'F', 'Gb', 'G', 'Ab', 'A', 'B', 'H']);
+    void expect(getScale('Db')).toEqual(['C', 'Db', 'D', 'Eb', 'E', 'F', 'Gb', 'G', 'Ab', 'A', 'B', 'H']);
   });
 });

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

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {Song} from './song';
 import {Observable} from 'rxjs';
 import {DbService} from '../../../services/db.service';
@@ -8,6 +8,8 @@ import {shareReplay, startWith} from 'rxjs/operators';
   providedIn: 'root',
 })
 export class SongDataService {
+  private dbService = inject(DbService);
+
   private collection = 'songs';
   public list$: Observable<Song[]> = this.dbService.col$<Song>(this.collection).pipe(
     startWith([] as Song[]), // immediate empty emit keeps UI responsive while first snapshot arrives
@@ -17,11 +19,6 @@ export class SongDataService {
     })
   );
 
-  public constructor(private dbService: DbService) {
-    // Warm the shared stream once at startup to avoid first-navigation delay.
-    // this.list$.subscribe();
-  }
-
   public read$ = (songId: string): Observable<Song | null> => this.dbService.doc$(this.collection + '/' + songId);
   public update$ = 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;

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

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 
 import {Observable} from 'rxjs';
 import {SongService} from './song.service';
@@ -9,7 +9,7 @@ import {take} from 'rxjs/operators';
   providedIn: 'root',
 })
 export class SongListResolver {
-  public constructor(private songService: SongService) {}
+  private songService = inject(SongService);
 
   public resolve(): Observable<Song[]> {
     return this.songService.list$().pipe(take(1));

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

@@ -1,4 +1,4 @@
-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';
@@ -16,21 +16,15 @@ 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$; //.pipe(tap(_ => (this.list = _)));
   public read$ = (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/text-rendering.service.ts

@@ -1,4 +1,4 @@
-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';
@@ -11,9 +11,9 @@ import {Line} from './line';
   providedIn: 'root',
 })
 export class TextRenderingService {
-  private regexSection = /(Strophe|Refrain|Bridge)/;
+  private transposeService = inject(TransposeService);
 
-  public constructor(private transposeService: TransposeService) {}
+  private regexSection = /(Strophe|Refrain|Bridge)/;
 
   public parse(text: string, transpose: TransposeMode | null, withComments = true): Section[] {
     if (!text) {

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

@@ -34,18 +34,18 @@ describe('TransposeService', () => {
     const distance = service.getDistance('C', 'Db');
     const map = service.getMap('C', 'Db', distance);
 
-    expect(distance).toBe(1);
+    void expect(distance).toBe(1);
-    expect(map?.['C']).toBe('Db');
+    void expect(map?.['C']).toBe('Db');
-    expect(map?.['G']).toBe('Ab');
+    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', distance);
 
-    expect(distance).toBe(1);
+    void expect(distance).toBe(1);
-    expect(map?.['H']).toBe('C');
+    void expect(map?.['H']).toBe('C');
-    expect(map?.['B']).toBe('C#');
+    void expect(map?.['B']).toBe('C#');
   });
 
   it('should render unknown chords as X', () => {
@@ -57,7 +57,7 @@ describe('TransposeService', () => {
 
     const rendered = service.renderChords(line);
 
-    expect(rendered.text).toBe('Xsus4');
+    void expect(rendered.text).toBe('Xsus4');
   });
 
   it('should render unknown slash chords as X', () => {
@@ -69,7 +69,7 @@ describe('TransposeService', () => {
 
     const rendered = service.renderChords(line);
 
-    expect(rendered.text).toBe('C/X');
+    void expect(rendered.text).toBe('C/X');
   });
 
   it('should transpose lines with long chord positions without truncating', () => {
@@ -81,7 +81,7 @@ describe('TransposeService', () => {
 
     const rendered = service.renderChords(line);
 
-    expect(rendered.text.length).toBe(121);
+    void expect(rendered.text.length).toBe(121);
-    expect(rendered.text.endsWith('C')).toBeTrue();
+    void expect(rendered.text.endsWith('C')).toBeTrue();
   });
 });

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

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {Upload} from './upload';
 import {FileDataService} from './file-data.service';
 import {ref, Storage, uploadBytesResumable} from '@angular/fire/storage';
@@ -9,12 +9,8 @@ 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 storage: Storage
-  ) {
-    super();
-  }
 
   public pushUpload(songId: string, upload: Upload): void {
     const directory = this.directory(songId);

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

@@ -1,4 +1,4 @@
-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';
@@ -21,6 +21,8 @@ import {SongTypePipe} from '../../../../widget-modules/pipes/song-type-translate
   imports: [ReactiveFormsModule, MatFormField, MatLabel, MatInput, MatSelect, MatOption, LegalTypePipe, KeyPipe, SongTypePipe],
 })
 export class FilterComponent {
+  private router = inject(Router);
+
   public filterFormGroup: UntypedFormGroup;
   @Input() public route = '/';
   @Input() public songs: Song[] = [];
@@ -28,11 +30,10 @@ export class FilterComponent {
   public legalType = SongService.LEGAL_TYPE;
   public keys = KEYS;
 
-  public constructor(
+  public constructor() {
-    private router: Router,
+    const activatedRoute = inject(ActivatedRoute);
-    activatedRoute: ActivatedRoute,
+    const fb = inject(UntypedFormBuilder);
-    fb: UntypedFormBuilder
+
-  ) {
     this.filterFormGroup = fb.group({
       q: '',
       type: '',

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

@@ -1,4 +1,4 @@
-import {ChangeDetectionStrategy, Component, OnDestroy, OnInit} from '@angular/core';
+import {ChangeDetectionStrategy, Component, OnDestroy, OnInit, inject} from '@angular/core';
 import {SongService} from '../services/song.service';
 import {Song} from '../services/song';
 import {map} from 'rxjs/operators';
@@ -25,6 +25,10 @@ import {FaIconComponent} from '@fortawesome/angular-fontawesome';
   imports: [ListHeaderComponent, FilterComponent, CardComponent, RouterLink, RoleDirective, FaIconComponent, AsyncPipe],
 })
 export class SongListComponent implements OnInit, OnDestroy {
+  private songService = inject(SongService);
+  private activatedRoute = inject(ActivatedRoute);
+  private scrollService = inject(ScrollService);
+
   public anyFilterActive = false;
   public songs$: Observable<Song[]> = combineLatest([
     this.activatedRoute.queryParams.pipe(map(_ => _ as FilterValues)),
@@ -39,12 +43,6 @@ export class SongListComponent implements OnInit, OnDestroy {
   public faDraft = faPencilRuler;
   public faFinal = faCheck;
 
-  public constructor(
-    private songService: SongService,
-    private activatedRoute: ActivatedRoute,
-    private scrollService: ScrollService
-  ) {}
-
   public ngOnInit(): void {
     setTimeout(() => this.scrollService.restoreScrollPositionFor('songlist'), 100);
     setTimeout(() => this.scrollService.restoreScrollPositionFor('songlist'), 300);

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';
@@ -19,16 +19,16 @@ import {FileComponent} from './file/file.component';
   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/edit-song.component.ts

@@ -1,4 +1,4 @@
-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';
@@ -59,6 +59,12 @@ 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);
+  public dialog = inject(MatDialog);
+
   public song: Song | null = null;
   public form: UntypedFormGroup = new UntypedFormGroup({});
   public keys = KEYS;
@@ -73,14 +79,6 @@ export class EditSongComponent implements OnInit {
   public faLink = faExternalLinkAlt;
   public songtextFocus = false;
 
-  public constructor(
-    private activatedRoute: ActivatedRoute,
-    private songService: SongService,
-    private editService: EditService,
-    private router: Router,
-    public dialog: MatDialog
-  ) {}
-
   public ngOnInit(): void {
     this.activatedRoute.params
       .pipe(

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

@@ -1,4 +1,4 @@
-import {Component, OnInit} from '@angular/core';
+import {Component, OnInit, inject} from '@angular/core';
 import {first, map, switchMap} from 'rxjs/operators';
 import {ActivatedRoute} from '@angular/router';
 import {SongService} from '../../../services/song.service';
@@ -13,12 +13,10 @@ import {CardComponent} from '../../../../../widget-modules/components/card/card.
   imports: [CardComponent, DatePipe],
 })
 export class HistoryComponent implements OnInit {
-  public song: Song | null = null;
+  private activatedRoute = inject(ActivatedRoute);
+  private songService = inject(SongService);
 
-  public constructor(
+  public song: Song | null = null;
-    private activatedRoute: ActivatedRoute,
-    private songService: SongService
-  ) {}
 
   public ngOnInit(): void {
     this.activatedRoute.params

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

@@ -1,4 +1,4 @@
-import {Component, Input} from '@angular/core';
+import {Component, Input, inject} from '@angular/core';
 import {File} from '../../services/file';
 import {getDownloadURL, ref, Storage} from '@angular/fire/storage';
 import {from, Observable} from 'rxjs';
@@ -11,11 +11,11 @@ import {AsyncPipe} from '@angular/common';
   imports: [AsyncPipe],
 })
 export class FileComponent {
+  private storage = inject(Storage);
+
   public url$: Observable<string> | null = null;
   public name = '';
 
-  public constructor(private storage: Storage) {}
-
   @Input()
   public set file(file: File) {
     this.url$ = from(getDownloadURL(ref(this.storage, file.path + '/' + file.name)));

src/app/modules/songs/song/new/new.component.ts

@@ -1,4 +1,4 @@
-import {Component, OnDestroy, OnInit} from '@angular/core';
+import {Component, OnDestroy, OnInit, inject} from '@angular/core';
 import {faSave} from '@fortawesome/free-solid-svg-icons';
 import {ReactiveFormsModule, UntypedFormControl, UntypedFormGroup, Validators} from '@angular/forms';
 import {SongService} from '../../services/song.service';
@@ -19,6 +19,9 @@ import {ButtonComponent} from '../../../../widget-modules/components/button/butt
   imports: [CardComponent, ReactiveFormsModule, MatFormField, MatLabel, MatInput, ButtonRowComponent, ButtonComponent],
 })
 export class NewComponent implements OnInit, OnDestroy {
+  private songService = inject(SongService);
+  private router = inject(Router);
+
   public faSave = faSave;
   public form: UntypedFormGroup = new UntypedFormGroup({
     number: new UntypedFormControl(null, Validators.required),
@@ -26,11 +29,6 @@ export class NewComponent implements OnInit, OnDestroy {
   });
   private subs: Subscription[] = [];
 
-  public constructor(
-    private songService: SongService,
-    private router: Router
-  ) {}
-
   public ngOnInit(): void {
     this.form.reset();
 

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

@@ -1,4 +1,4 @@
-import {Component, OnInit} from '@angular/core';
+import {Component, OnInit, inject} from '@angular/core';
 import {ActivatedRoute, Router, RouterLink} from '@angular/router';
 import {SongService} from '../services/song.service';
 import {distinctUntilChanged, map, switchMap} from 'rxjs/operators';
@@ -51,6 +51,14 @@ import {ShowTypePipe} from '../../../widget-modules/pipes/show-type-translater/s
   ],
 })
 export class SongComponent implements OnInit {
+  private activatedRoute = inject(ActivatedRoute);
+  private songService = inject(SongService);
+  private fileService = inject(FileDataService);
+  private userService = inject(UserService);
+  private router = inject(Router);
+  private showService = inject(ShowService);
+  private showSongService = inject(ShowSongService);
+
   public song$: Observable<Song | null> | null = null;
   public files$: Observable<File[] | null> | null = null;
   public user$: Observable<User | null> | null = null;
@@ -60,15 +68,9 @@ export class SongComponent implements OnInit {
   public faFileCirclePlus = faFileCirclePlus;
   public privateShows$ = this.showService.list$().pipe(map(show => show.filter(_ => !_.published).sort((a, b) => b.date.toMillis() - a.date.toMillis())));
 
-  public constructor(
+  public constructor() {
-    private activatedRoute: ActivatedRoute,
+    const userService = this.userService;
-    private songService: SongService,
+
-    private fileService: FileDataService,
-    private userService: UserService,
-    private router: Router,
-    private showService: ShowService,
-    private showSongService: ShowSongService
-  ) {
     this.user$ = userService.user$;
   }
 

src/app/modules/user/info/info.component.ts

@@ -1,4 +1,4 @@
-import {Component, OnInit} from '@angular/core';
+import {Component, OnInit, inject} from '@angular/core';
 import {UserService} from '../../../services/user/user.service';
 import {Observable} from 'rxjs';
 import {User} from '../../../services/user/user';
@@ -40,11 +40,11 @@ import {UsersComponent} from './users/users.component';
   ],
 })
 export class InfoComponent implements OnInit {
+  private userService = inject(UserService);
+
   public user$: Observable<User | null> | null = null;
   public faSignOut = faSignOutAlt;
 
-  public constructor(private userService: UserService) {}
-
   public ngOnInit(): void {
     this.user$ = this.userService.user$;
   }

src/app/modules/user/info/users/user/user.component.ts

@@ -1,4 +1,4 @@
-import {Component, Input} from '@angular/core';
+import {Component, Input, inject} from '@angular/core';
 import {User} from '../../../../../services/user/user';
 import {UserService} from '../../../../../services/user/user.service';
 import {ROLE_TYPES} from '../../../../../services/user/roles';
@@ -20,6 +20,8 @@ import {RolePipe} from '../../role.pipe';
   imports: [MatFormField, MatLabel, MatInput, ReactiveFormsModule, FormsModule, MatSelect, MatOption, MatIconButton, FaIconComponent, RolePipe],
 })
 export class UserComponent {
+  private userService = inject(UserService);
+
   public id = '';
   public name = '';
   public roles: string[] = [];
@@ -27,8 +29,6 @@ export class UserComponent {
   public edit = false;
   public faClose = faTimes;
 
-  public constructor(private userService: UserService) {}
-
   @Input()
   public set user(value: User) {
     this.id = value.id;

src/app/modules/user/info/users/users.component.ts

@@ -1,4 +1,4 @@
-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';
@@ -14,9 +14,13 @@ import {SortByPipe} from '../../../../widget-modules/pipes/sort-by/sort-by.pipe'
   imports: [CardComponent, UserComponent, AsyncPipe, SortByPipe],
 })
 export class UsersComponent {
+  private userService = inject(UserService);
+
   public users$: Observable<User[]>;
 
-  public constructor(private userService: UserService) {
+  public constructor() {
+    const userService = this.userService;
+
     this.users$ = userService.list$();
   }
 }

src/app/modules/user/login/login.component.ts

@@ -1,4 +1,4 @@
-import {Component, OnInit} from '@angular/core';
+import {Component, OnInit, inject} from '@angular/core';
 import {ReactiveFormsModule, UntypedFormControl, UntypedFormGroup, Validators} from '@angular/forms';
 import {Router, RouterLink} from '@angular/router';
 import {UserService} from '../../../services/user/user.service';
@@ -17,6 +17,9 @@ import {AuthMessagePipe} from './auth-message.pipe';
   imports: [LogoComponent, ReactiveFormsModule, MatFormField, MatLabel, MatInput, MatButton, RouterLink, AuthMessagePipe],
 })
 export class LoginComponent implements OnInit {
+  private userService = inject(UserService);
+  private router = inject(Router);
+
   public form: UntypedFormGroup = new UntypedFormGroup({
     user: new UntypedFormControl(null, [Validators.required, Validators.email]),
     pass: new UntypedFormControl(null, [Validators.required]),
@@ -25,13 +28,8 @@ export class LoginComponent implements OnInit {
   public faSignIn = faSignInAlt;
   public faNewUser = faUserPlus;
 
-  public constructor(
-    private userService: UserService,
-    private router: Router
-  ) {}
-
   public ngOnInit(): void {
-    this.form.reset;
+    this.form.reset();
   }
 
   public async onLogin(): Promise<void> {

src/app/modules/user/logout/logout.component.ts

@@ -1,4 +1,4 @@
-import {AfterViewInit, Component} from '@angular/core';
+import {AfterViewInit, Component, inject} from '@angular/core';
 import {Router} from '@angular/router';
 import {UserService} from '../../../services/user/user.service';
 
@@ -8,13 +8,13 @@ import {UserService} from '../../../services/user/user.service';
   styleUrls: ['./logout.component.less'],
 })
 export class LogoutComponent implements AfterViewInit {
-  public constructor(
+  private userService = inject(UserService);
-    private userService: UserService,
+  private router = inject(Router);
-    private router: Router
-  ) {}
 
-  public async ngAfterViewInit(): Promise<void> {
+  public ngAfterViewInit(): void {
+    void (async () => {
       await this.userService.logout();
       await this.router.navigateByUrl('/');
+    })();
   }
 }

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

@@ -1,4 +1,4 @@
-import {Component, OnInit} from '@angular/core';
+import {Component, OnInit, inject} from '@angular/core';
 import {ReactiveFormsModule, UntypedFormBuilder, UntypedFormControl, UntypedFormGroup, Validators} from '@angular/forms';
 import {UserService} from '../../../services/user/user.service';
 import {faUserPlus} from '@fortawesome/free-solid-svg-icons';
@@ -15,6 +15,9 @@ import {ButtonComponent} from '../../../widget-modules/components/button/button.
   imports: [CardComponent, ReactiveFormsModule, MatFormField, MatLabel, MatInput, ButtonRowComponent, ButtonComponent],
 })
 export class NewComponent implements OnInit {
+  private fb = inject(UntypedFormBuilder);
+  private userService = inject(UserService);
+
   public form: UntypedFormGroup = this.fb.group({
     email: new UntypedFormControl(null, [Validators.required, Validators.email]),
     name: new UntypedFormControl(null, [Validators.required]),
@@ -22,11 +25,6 @@ export class NewComponent implements OnInit {
   });
   public faNewUser = faUserPlus;
 
-  public constructor(
-    private fb: UntypedFormBuilder,
-    private userService: UserService
-  ) {}
-
   public ngOnInit(): void {
     this.form.reset();
   }

src/app/modules/user/password/password.component.ts

@@ -1,4 +1,4 @@
-import {Component, OnInit} from '@angular/core';
+import {Component, OnInit, inject} from '@angular/core';
 import {ReactiveFormsModule, UntypedFormControl, UntypedFormGroup, Validators} from '@angular/forms';
 import {Router} from '@angular/router';
 import {UserService} from '../../../services/user/user.service';
@@ -18,6 +18,9 @@ import {AuthMessagePipe} from '../login/auth-message.pipe';
   imports: [CardComponent, ReactiveFormsModule, MatFormField, MatLabel, MatInput, ButtonRowComponent, ButtonComponent, AuthMessagePipe],
 })
 export class PasswordComponent implements OnInit {
+  public userService = inject(UserService);
+  private router = inject(Router);
+
   public form: UntypedFormGroup = new UntypedFormGroup({
     user: new UntypedFormControl(null, [Validators.required, Validators.email]),
   });
@@ -25,11 +28,6 @@ export class PasswordComponent implements OnInit {
   public errorMessage = '';
   public faNewPassword = faWindowRestore;
 
-  public constructor(
-    public userService: UserService,
-    private router: Router
-  ) {}
-
   public ngOnInit(): void {
     this.form.reset();
   }

src/app/services/config.service.ts

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {DbService} from './db.service';
 import {firstValueFrom, Observable} from 'rxjs';
 import {Config} from './config';
@@ -8,6 +8,8 @@ import {shareReplay} from 'rxjs/operators';
   providedIn: 'root',
 })
 export class ConfigService {
+  private db = inject(DbService);
+
   private readonly config$ = this.db.doc$<Config>('global/config').pipe(
     shareReplay({
       bufferSize: 1,
@@ -15,8 +17,6 @@ export class ConfigService {
     })
   );
 
-  public constructor(private db: DbService) {}
-
   public get$ = (): Observable<Config | null> => this.config$;
   public get = (): Promise<Config | null> => firstValueFrom(this.get$());
 }

src/app/services/db.service.ts

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {
   addDoc,
   collection,
@@ -76,7 +76,7 @@ export class DbDocument<T> {
   providedIn: 'root',
 })
 export class DbService {
-  public constructor(private fs: Firestore) {}
+  private fs = inject(Firestore);
 
   public col<T>(ref: CollectionPredicate<T>): DbCollection<T> {
     return typeof ref === 'string' ? new DbCollection<T>(this.fs, ref) : ref;

src/app/services/fullscreen.ts

@@ -6,12 +6,9 @@ export const openFullscreen = () => {
   }
 
   try {
-    const promise = elem.requestFullscreen();
+    void elem.requestFullscreen().catch(() => {
-    if (promise && typeof promise.catch === 'function') {
-      void promise.catch(() => {
       // Browser may reject when no user gesture is present. Keep app usable.
     });
-    }
   } catch {
     // Some browsers may throw synchronously if fullscreen is not allowed.
   }
@@ -19,11 +16,8 @@ export const openFullscreen = () => {
 
 export const closeFullscreen = () => {
   if (document.exitFullscreen) {
-    const promise = document.exitFullscreen();
+    void document.exitFullscreen().catch(() => {
-    if (promise && typeof promise.catch === 'function') {
-      void promise.catch(() => {
       // Ignore; leaving fullscreen is a best-effort action.
     });
   }
-  }
 };

src/app/services/global-settings.service.ts

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {DbService} from './db.service';
 import {GlobalSettings} from './global-settings';
 import {Observable} from 'rxjs';
@@ -8,6 +8,8 @@ import {shareReplay} from 'rxjs/operators';
   providedIn: 'root',
 })
 export class GlobalSettingsService {
+  private db = inject(DbService);
+
   private readonly settings$ = this.db.doc$<GlobalSettings>('global/static').pipe(
     shareReplay({
       bufferSize: 1,
@@ -15,8 +17,6 @@ export class GlobalSettingsService {
     })
   );
 
-  public constructor(private db: DbService) {}
-
   public get get$(): Observable<GlobalSettings | null> {
     return this.settings$;
   }

src/app/services/user/owner.directive.ts

@@ -1,18 +1,16 @@
-import {Directive, ElementRef, Input, OnInit, TemplateRef, ViewContainerRef} from '@angular/core';
+import {Directive, ElementRef, Input, OnInit, TemplateRef, ViewContainerRef, inject} from '@angular/core';
 import {UserService} from './user.service';
 
 @Directive({selector: '[appOwner]'})
 export class OwnerDirective implements OnInit {
+  private element = inject(ElementRef);
+  private templateRef = inject<TemplateRef<unknown>>(TemplateRef);
+  private viewContainer = inject(ViewContainerRef);
+  private userService = inject(UserService);
+
   private currentUserId: string | null = null;
   private iAppOwner: string | null = null;
 
-  public constructor(
-    private element: ElementRef,
-    private templateRef: TemplateRef<unknown>,
-    private viewContainer: ViewContainerRef,
-    private userService: UserService
-  ) {}
-
   @Input()
   public set appOwner(value: string) {
     this.iAppOwner = value;

src/app/services/user/role.directive.ts

@@ -1,4 +1,4 @@
-import {ChangeDetectorRef, Directive, ElementRef, Input, OnInit, TemplateRef, ViewContainerRef} from '@angular/core';
+import {ChangeDetectorRef, Directive, ElementRef, Input, OnInit, TemplateRef, ViewContainerRef, inject} from '@angular/core';
 import {roles} from './roles';
 import {UserService} from './user.service';
 import {User} from './user';
@@ -6,19 +6,17 @@ import {combineLatest} from 'rxjs';
 
 @Directive({selector: '[appRole]'})
 export class RoleDirective implements OnInit {
+  private element = inject(ElementRef);
+  private templateRef = inject<TemplateRef<unknown>>(TemplateRef);
+  private viewContainer = inject(ViewContainerRef);
+  private userService = inject(UserService);
+  private changeDetection = inject(ChangeDetectorRef);
+
   @Input() public appRole: roles[] = [];
   private currentUser: User | null = null;
   private loggedIn = false;
   private currentViewState = false;
 
-  public constructor(
-    private element: ElementRef,
-    private templateRef: TemplateRef<unknown>,
-    private viewContainer: ViewContainerRef,
-    private userService: UserService,
-    private changeDetection: ChangeDetectorRef
-  ) {}
-
   public ngOnInit(): void {
     combineLatest([this.userService.user$, this.userService.loggedIn$()]).subscribe(_ => {
       this.currentUser = _[0];

src/app/services/user/user-name/user-name.component.ts

@@ -1,4 +1,4 @@
-import {Component, Input} from '@angular/core';
+import {Component, Input, inject} from '@angular/core';
 import {UserService} from '../user.service';
 import {map} from 'rxjs/operators';
 import {Observable} from 'rxjs';
@@ -11,9 +11,9 @@ import {AsyncPipe} from '@angular/common';
   imports: [AsyncPipe],
 })
 export class UserNameComponent {
-  public name$: Observable<string | null> | null = null;
+  private userService = inject(UserService);
 
-  public constructor(private userService: UserService) {}
+  public name$: Observable<string | null> | null = null;
 
   @Input()
   public set userId(id: string) {

src/app/services/user/user.service.ts

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {Auth, authState, createUserWithEmailAndPassword, sendPasswordResetEmail, signInWithEmailAndPassword, signOut} from '@angular/fire/auth';
 import {BehaviorSubject, firstValueFrom, Observable} from 'rxjs';
 import {filter, map, shareReplay, switchMap, take, tap} from 'rxjs/operators';
@@ -20,18 +20,18 @@ export interface SongUsageMigrationResult {
   providedIn: 'root',
 })
 export class UserService {
+  private auth = inject(Auth);
+  private db = inject(DbService);
+  private router = inject(Router);
+  private showDataService = inject(ShowDataService);
+  private showSongDataService = inject(ShowSongDataService);
+
   public users$ = this.db.col$<User>('users').pipe(shareReplay({bufferSize: 1, refCount: true}));
   private iUserId$ = new BehaviorSubject<string | null>(null);
   private iUser$ = new BehaviorSubject<User | null>(null);
   private userByIdCache = new Map<string, Observable<User | null>>();
 
-  public constructor(
+  public constructor() {
-    private auth: Auth,
-    private db: DbService,
-    private router: Router,
-    private showDataService: ShowDataService,
-    private showSongDataService: ShowSongDataService
-  ) {
     authState(this.auth)
       .pipe(
         filter(auth => !!auth),

src/app/widget-modules/components/add-song/add-song.component.ts

@@ -1,4 +1,4 @@
-import {ChangeDetectionStrategy, Component, Input} from '@angular/core';
+import {ChangeDetectionStrategy, Component, Input, inject} from '@angular/core';
 import {ReactiveFormsModule, UntypedFormControl} from '@angular/forms';
 import {filterSong} from '../../../services/filter.helper';
 import {MatFormField, MatLabel, MatOption, MatSelect, MatSelectChange} from '@angular/material/select';
@@ -18,17 +18,15 @@ import {NgxMatSelectSearchModule} from 'ngx-mat-select-search';
   imports: [MatFormField, MatSelect, MatOption, MatLabel, NgxMatSelectSearchModule, ReactiveFormsModule],
 })
 export class AddSongComponent {
+  private showSongService = inject(ShowSongService);
+  private showService = inject(ShowService);
+
   @Input() public songs: Song[] | null = null;
   @Input() public showSongs: ShowSong[] | null = null;
   @Input() public show: Show | null = null;
   @Input() public addedLive = false;
   public filteredSongsControl = new UntypedFormControl();
 
-  public constructor(
-    private showSongService: ShowSongService,
-    private showService: ShowService
-  ) {}
-
   public filteredSongs(): Song[] {
     if (!this.songs) return [];
     const songs = this.songs

src/app/widget-modules/components/application-frame/navigation/filter/filter.component.ts

@@ -1,4 +1,4 @@
-import {Component} from '@angular/core';
+import {Component, inject} from '@angular/core';
 import {ActivatedRoute, Params, Router} from '@angular/router';
 import {FormsModule, ReactiveFormsModule} from '@angular/forms';
 
@@ -9,12 +9,13 @@ import {FormsModule, ReactiveFormsModule} from '@angular/forms';
   imports: [ReactiveFormsModule, FormsModule],
 })
 export class FilterComponent {
+  private router = inject(Router);
+
   public value = '';
 
-  public constructor(
+  public constructor() {
-    private router: Router,
+    const activatedRoute = inject(ActivatedRoute);
-    activatedRoute: ActivatedRoute
+
-  ) {
     activatedRoute.queryParams.subscribe((params: Params) => {
       const typedParams = params as {q: string};
       if (typedParams.q) this.value = typedParams.q;

src/app/widget-modules/components/song-text/song-text.component.ts

@@ -1,4 +1,4 @@
-import {ChangeDetectorRef, Component, ElementRef, EventEmitter, Input, OnInit, Output, QueryList, ViewChildren} from '@angular/core';
+import {ChangeDetectorRef, Component, ElementRef, EventEmitter, Input, OnInit, Output, QueryList, ViewChildren, inject} from '@angular/core';
 import {TextRenderingService} from '../../../modules/songs/services/text-rendering.service';
 import {faGripLines} from '@fortawesome/free-solid-svg-icons';
 import {songSwitch} from './animation';
@@ -21,6 +21,10 @@ export type ChordMode = 'show' | 'hide' | 'onlyFirst';
   imports: [MatIconButton, FaIconComponent],
 })
 export class SongTextComponent implements OnInit {
+  private textRenderingService = inject(TextRenderingService);
+  private elRef = inject<ElementRef<HTMLElement>>(ElementRef);
+  private cRef = inject(ChangeDetectorRef);
+
   public sections: Section[] = [];
   @Input() public header: string | null = null;
   @Input() public index = -1;
@@ -35,12 +39,6 @@ export class SongTextComponent implements OnInit {
   private iText = '';
   private iTranspose: TransposeMode | null = null;
 
-  public constructor(
-    private textRenderingService: TextRenderingService,
-    private elRef: ElementRef<HTMLElement>,
-    private cRef: ChangeDetectorRef
-  ) {}
-
   @Input()
   public set chordMode(value: ChordMode) {
     this.iChordMode = value ?? 'hide';

src/app/widget-modules/directives/autofocus/autofocus.directive.ts

@@ -1,10 +1,9 @@
-import {Directive, ElementRef, Input, OnInit} from '@angular/core';
+import {Directive, ElementRef, Input, OnInit, inject} from '@angular/core';
 
 @Directive({selector: '[appAutofocus]'})
 export class AutofocusDirective implements OnInit {
   private focus = true;
-
+  private el = inject<ElementRef<HTMLElement>>(ElementRef);
-  public constructor(private el: ElementRef<HTMLElement>) {}
 
   @Input()
   public set autofocus(condition: boolean) {

src/app/widget-modules/guards/auth.guard.ts

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {CanActivate, Router, UrlTree} from '@angular/router';
 import {Auth, authState} from '@angular/fire/auth';
 import {Observable} from 'rxjs';
@@ -8,10 +8,8 @@ import {map, take} from 'rxjs/operators';
   providedIn: 'root',
 })
 export class AuthGuard implements CanActivate {
-  public constructor(
+  private auth = inject(Auth);
-    private auth: Auth,
+  private router = inject(Router);
-    private router: Router
-  ) {}
 
   public canActivate(): Observable<boolean | UrlTree> {
     return authState(this.auth).pipe(

src/app/widget-modules/guards/role.guard.ts

@@ -1,4 +1,4 @@
-import {Injectable} from '@angular/core';
+import {Injectable, inject} from '@angular/core';
 import {ActivatedRouteSnapshot, Router, UrlTree} from '@angular/router';
 import {Observable} from 'rxjs';
 import {UserService} from '../../services/user/user.service';
@@ -8,10 +8,8 @@ import {map} from 'rxjs/operators';
   providedIn: 'root',
 })
 export class RoleGuard {
-  public constructor(
+  private userService = inject(UserService);
-    private userService: UserService,
+  private router = inject(Router);
-    private router: Router
-  ) {}
 
   public canActivate(next: ActivatedRouteSnapshot): Observable<boolean | UrlTree> {
     const requiredRoles = next.data.requiredRoles as string[];

src/app/widget-modules/pipes/sort-by/sort-by.pipe.ts

@@ -1,5 +1,4 @@
 import {Pipe, PipeTransform} from '@angular/core';
-import {orderBy} from 'lodash';
 
 @Pipe({
   name: 'sortBy',
@@ -19,7 +18,29 @@ export class SortByPipe implements PipeTransform {
     if (value.length <= 1) {
       return value;
     } // array with only one item
-    // eslint-disable-next-line @typescript-eslint/no-unsafe-call
+    return [...value].sort((left, right) => {
-    return orderBy(value, [column], [order]);
+      const leftValue = this.getComparableValue(left, column);
+      const rightValue = this.getComparableValue(right, column);
+      const result = leftValue < rightValue ? -1 : leftValue > rightValue ? 1 : 0;
+      return order === 'asc' ? result : -result;
+    });
+  }
+
+  private getComparableValue(item: unknown, column: string): string | number {
+    const value = (item as Record<string, unknown>)[column];
+    if (value instanceof Date) {
+      return value.getTime();
+    }
+
+    switch (typeof value) {
+      case 'number':
+        return value;
+      case 'string':
+        return value;
+      case 'boolean':
+        return value ? 1 : 0;
+      default:
+        return '';
+    }
   }
 }