feat: export playlist as m3u

src/app/services/playlists.service.ts

@@ -7,12 +7,12 @@ import { Channel } from '../../../shared/channel.interface';
 import { GLOBAL_FAVORITES_PLAYLIST_ID } from '../../../shared/constants';
 import {
     Playlist,
-    PlaylistUpdateState,
+    PlaylistUpdateState
 } from '../../../shared/playlist.interface';
 import {
     aggregateFavoriteChannels,
     createFavoritesPlaylist,
-    createPlaylistObject,
+    createPlaylistObject
 } from '../../../shared/playlist.utils';
 import { DbStores } from '../indexed-db.config';
 import { PlaylistMeta } from '../shared/playlist-meta.type';
@@ -191,4 +191,11 @@ export class PlaylistsService {
             )
         );
     }
+
+    getRawPlaylistById(id: string) {
+        return this.dbService.getByID<Playlist>(DbStores.Playlists, id).pipe(map(playlist => {
+            // eslint-disable-next-line @typescript-eslint/restrict-plus-operands
+            return playlist.playlist.header.raw + '\n' + playlist.playlist.items.map(item => item.raw).join('\n');
+        }));
+    }
 }