refactor: minor code improvements

src/app/player/components/epg-list/epg-list.component.ts

@@ -94,7 +94,7 @@ export class EpgListComponent {
      * @param programs
      */
     handleEpgData(programs: { payload: EpgData }): void {
-        if (programs.payload?.items?.length > 0) {
+        if (programs?.payload?.items?.length > 0) {
             this.programs = programs;
             this.timeNow = moment(Date.now()).format(DATE_TIME_FORMAT);
             this.dateToday = moment(Date.now()).format(DATE_FORMAT);

src/app/player/components/html-video-player/html-video-player.component.ts

@@ -49,7 +49,7 @@ export class HtmlVideoPlayerComponent implements OnChanges, OnDestroy {
     playChannel(channel: Channel): void {
         if (this.hls) this.hls.destroy();
         const url = channel.url + channel.epgParams;
-        if (Hls.isSupported()) {
+        if (Hls && Hls.isSupported()) {
             console.log('... switching channel to ', channel.name, url);
             this.hls = new Hls();
             this.hls.attachMedia(this.videoPlayer.nativeElement);

src/app/state/channel.store.ts

@@ -3,6 +3,7 @@ import { EntityState, EntityStore, StoreConfig } from '@datorama/akita';
 import {
     CHANNEL_SET_USER_AGENT,
     EPG_GET_PROGRAM,
+    PLAYLIST_UPDATE_FAVORITES,
 } from '../../../shared/ipc-commands';
 import { Channel } from './channel.model';
 import * as moment from 'moment';
@@ -48,7 +49,7 @@ export class ChannelStore extends EntityStore<ChannelState> {
             } else {
                 favorites = [...store.favorites, channel.id];
             }
-            this.electronService.sendIpcEvent('update-favorites', {
+            this.electronService.sendIpcEvent(PLAYLIST_UPDATE_FAVORITES, {
                 id: store.playlistId,
                 favorites,
             });