From 0bc71d47911c9b87cbe92f20f7d024c0027349e1 Mon Sep 17 00:00:00 2001
From: 4gray <serega05@gmail.com>
Date: Sat, 19 Feb 2022 23:40:59 +0100
Subject: [PATCH] feat: switch playlists from the sidebar

---
 api.ts                                        |  1 +
 src/app/home/home.component.ts                | 40 +++------
 .../channel-list-container.component.html     | 44 +++++++---
 .../channel-list-container.component.scss     | 30 ++++++-
 .../channel-list-container.component.ts       | 19 ++++
 .../video-player/video-player.component.html  | 19 +++-
 .../video-player/video-player.component.ts    | 88 +++++++++++++++++--
 7 files changed, 186 insertions(+), 55 deletions(-)

diff --git a/api.ts b/api.ts
index e635dbf98..1f99c5fd6 100644
--- a/api.ts
+++ b/api.ts
@@ -328,6 +328,7 @@ export class Api {
                 count: 1,
                 title: 1,
                 _id: 1,
+                id: 1,
                 url: 1,
                 importDate: 1,
                 userAgent: 1,
diff --git a/src/app/home/home.component.ts b/src/app/home/home.component.ts
index c837ca070..8812eb4bf 100644
--- a/src/app/home/home.component.ts
+++ b/src/app/home/home.component.ts
@@ -1,10 +1,8 @@
-import { TranslateService } from '@ngx-translate/core';
 import { Component, NgZone } from '@angular/core';
-import { UploadFile } from 'ngx-uploader';
-import { ChannelStore, createChannel } from '../state';
-import { Router } from '@angular/router';
 import { MatSnackBar } from '@angular/material/snack-bar';
-import { Playlist } from '../../../shared/playlist.interface';
+import { Router } from '@angular/router';
+import { TranslateService } from '@ngx-translate/core';
+import { UploadFile } from 'ngx-uploader';
 import {
     ERROR,
     PLAYLIST_GET_ALL,
@@ -18,8 +16,10 @@ import {
     PLAYLIST_UPDATE,
     PLAYLIST_UPDATE_RESPONSE,
 } from '../../../shared/ipc-commands';
-import { DialogService } from './../services/dialog.service';
+import { Playlist } from '../../../shared/playlist.interface';
 import { DataService } from '../services/data.service';
+import { ChannelStore } from '../state';
+import { DialogService } from './../services/dialog.service';
 
 /** Type to describe meta data of a playlist */
 export type PlaylistMeta = Pick<
@@ -51,8 +51,10 @@ export class HomeComponent {
     commandsList = [
         {
             id: PLAYLIST_PARSE_RESPONSE,
-            execute: (response: { payload: Playlist }): void =>
-                this.setPlaylist(response.payload),
+            execute: (response: { payload: Playlist }): void => {
+                this.channelStore.setPlaylist(response.payload);
+                this.navigateToPlayer();
+            },
         },
         {
             id: PLAYLIST_GET_ALL_RESPONSE,
@@ -97,9 +99,9 @@ export class HomeComponent {
      */
     constructor(
         private electronService: DataService,
-        private channelStore: ChannelStore,
         private dialogService: DialogService,
         private ngZone: NgZone,
+        private channelStore: ChannelStore,
         private router: Router,
         private snackBar: MatSnackBar,
         private translate: TranslateService
@@ -175,26 +177,6 @@ export class HomeComponent {
         });
     }
 
-    /**
-     * Sets the given playlist as active for the current session
-     * @param playlist playlist object
-     */
-    setPlaylist(playlist: Playlist): void {
-        this.channelStore.remove();
-        const favorites = playlist.favorites || [];
-        const channels = playlist.playlist.items.map((element) =>
-            createChannel(element)
-        );
-        this.channelStore.upsertMany(channels);
-        this.channelStore.update((store) => ({
-            ...store,
-            active: undefined,
-            favorites,
-            playlistId: playlist.id,
-        }));
-        this.navigateToPlayer();
-    }
-
     /**
      * Triggers on remove click
      * @param playlistId playlist id to remove
diff --git a/src/app/player/components/channel-list-container/channel-list-container.component.html b/src/app/player/components/channel-list-container/channel-list-container.component.html
index eb2b7b722..dafcab6f2 100644
--- a/src/app/player/components/channel-list-container/channel-list-container.component.html
+++ b/src/app/player/components/channel-list-container/channel-list-container.component.html
@@ -1,3 +1,29 @@
+<div id="playlists-navigation">
+    <div class="current-playlist">
+        <button
+            mat-icon-button
+            (click)="showPlaylists()"
+            matTooltip="Back to playlists overview"
+        >
+            <mat-icon>arrow_back_ios</mat-icon>
+        </button>
+        <div class="playlist-info">
+            <div class="name">{{ playlistMeta?.filename }}</div>
+            <div class="channels-count">{{ playlistMeta?.count }} channels</div>
+        </div>
+
+        <button
+            mat-icon-button
+            routerLink="/"
+            [matTooltip]="
+                'CHANNELS.UPLOAD_OR_SELECT_OTHER_PLAYLIST' | translate
+            "
+        >
+            <mat-icon>playlist_add</mat-icon>
+        </button>
+    </div>
+</div>
+<mat-divider></mat-divider>
 <mat-tab-group color="primary" backgroundColor="primary">
     <mat-tab [label]="'CHANNELS.ALL_CHANNELS' | translate">
         <mat-list>
@@ -6,20 +32,9 @@
                     class="full-width search-bar"
                     type="search"
                     #search
-                    placeholder="{{ 'CHANNELS.SEARCH_CHANNEL' | translate }} ({{
-                        _channelList?.length
-                    }})"
+                    [placeholder]="'CHANNELS.SEARCH_CHANNEL' | translate"
                     [(ngModel)]="searchTerm.name"
                 />
-                <button
-                    mat-icon-button
-                    routerLink="/"
-                    [matTooltip]="
-                        'CHANNELS.UPLOAD_OR_SELECT_OTHER_PLAYLIST' | translate
-                    "
-                >
-                    <mat-icon>create_new_folder</mat-icon>
-                </button>
             </mat-list-item>
         </mat-list>
         <mat-divider></mat-divider>
@@ -99,7 +114,10 @@
         </mat-nav-list>
     </mat-tab>
 
-    <mat-tab *ngIf="playlistId !== 'GLOBAL_FAVORITES'" [label]="'CHANNELS.FAVORITES' | translate">
+    <mat-tab
+        *ngIf="playlistId !== 'GLOBAL_FAVORITES'"
+        [label]="'CHANNELS.FAVORITES' | translate"
+    >
         <mat-nav-list
             *ngIf="favorites$ | async as favorites"
             id="favorites-list"
diff --git a/src/app/player/components/channel-list-container/channel-list-container.component.scss b/src/app/player/components/channel-list-container/channel-list-container.component.scss
index cb9ff0ec6..7f5c0a9f7 100644
--- a/src/app/player/components/channel-list-container/channel-list-container.component.scss
+++ b/src/app/player/components/channel-list-container/channel-list-container.component.scss
@@ -11,7 +11,7 @@
 }
 
 .scroll-viewport {
-    min-height: calc(100vh - 142px);
+    min-height: calc(100vh - 165px);
 }
 
 .search-bar {
@@ -78,3 +78,31 @@
     background-size: 10px 10px;
     color: #fff;
 }
+
+#playlists-navigation {
+    background-color: #000;
+    color: #fff;
+
+    .playlist-info {
+        flex: 1;
+        max-width: 300px;
+
+        .name {
+            font-size: 1.1em;
+            overflow: hidden;
+            text-overflow: ellipsis;
+            white-space: nowrap;
+        }
+
+        .channels-count {
+            font-size: 0.8em;
+            color: #ccc;
+        }
+    }
+}
+
+.current-playlist {
+    display: flex;
+    align-items: center;
+    padding: 8px;
+}
diff --git a/src/app/player/components/channel-list-container/channel-list-container.component.ts b/src/app/player/components/channel-list-container/channel-list-container.component.ts
index 8de54395a..d98d17aa3 100644
--- a/src/app/player/components/channel-list-container/channel-list-container.component.ts
+++ b/src/app/player/components/channel-list-container/channel-list-container.component.ts
@@ -1,14 +1,17 @@
 import {
     Component,
     ElementRef,
+    EventEmitter,
     HostListener,
     Input,
+    Output,
     ViewChild,
 } from '@angular/core';
 import { MatSnackBar } from '@angular/material/snack-bar';
 import * as _ from 'lodash';
 import { Observable } from 'rxjs';
 import { Channel } from '../../../../../shared/channel.interface';
+import { Playlist } from '../../../../../shared/playlist.interface';
 import { ChannelQuery, ChannelStore } from '../../../state';
 
 @Component({
@@ -32,6 +35,15 @@ export class ChannelListContainerComponent {
         this.groupedChannels = _.groupBy(value, 'group.title');
     }
 
+    /** Meta information about current playlist */
+    playlistMeta: Pick<Playlist, 'count' | 'filename'> = {
+        count: this.channelQuery.getValue().playlistCount,
+        filename: this.channelQuery.getValue().playlistFilename,
+    };
+
+    /** Toggles the sidebar view from channels to playlists */
+    @Output() changeView = new EventEmitter<any>();
+
     /** Object with channels sorted by groups */
     groupedChannels: { [key: string]: Channel[] };
 
@@ -106,4 +118,11 @@ export class ChannelListContainerComponent {
     trackByFn(index: number, channel: Channel): string {
         return channel.id;
     }
+
+    /**
+     * Emits event to the parent to toggle to the playlists overview
+     */
+    showPlaylists() {
+        this.changeView.emit('PLAYLISTS');
+    }
 }
diff --git a/src/app/player/components/video-player/video-player.component.html b/src/app/player/components/video-player/video-player.component.html
index 9fce54e64..43eddeacc 100644
--- a/src/app/player/components/video-player/video-player.component.html
+++ b/src/app/player/components/video-player/video-player.component.html
@@ -8,8 +8,19 @@
         disableClose
     >
         <ng-container *ngIf="channels$ | async as channels">
-            <app-channel-list-container [channelList]="channels">
+            <app-channel-list-container
+                *ngIf="sidebarView === 'CHANNELS'; else playlistsTemplate"
+                [channelList]="channels"
+                (changeView)="setSidebarView($event)"
+            >
             </app-channel-list-container>
+            <ng-template #playlistsTemplate>
+                <app-recent-playlists
+                    [playlists]="playlists"
+                    (playlistClicked)="getPlaylist($event)"
+                >
+                </app-recent-playlists>
+            </ng-template>
         </ng-container>
     </mat-drawer>
 
@@ -32,13 +43,13 @@
                 >
                     <mat-icon>
                         {{
-                            (favorites$ | async).includes(activeChannel.id)
+                            (favorites$ | async).includes(activeChannel?.id)
                                 ? 'star'
                                 : 'star_outline'
                         }}</mat-icon
                     >
                 </button>
-                {{ activeChannel.name }}
+                {{ activeChannel?.name }}
                 <div class="spacer"></div>
                 <button
                     *ngIf="epgAvailable$ | async"
@@ -56,7 +67,7 @@
                 [options]="{
                     sources: [
                         {
-                            src: activeChannel.url + activeChannel.epgParams,
+                            src: activeChannel?.url + activeChannel?.epgParams,
                             type: 'application/x-mpegURL'
                         }
                     ]
diff --git a/src/app/player/components/video-player/video-player.component.ts b/src/app/player/components/video-player/video-player.component.ts
index 55494172f..88739d6ec 100644
--- a/src/app/player/components/video-player/video-player.component.ts
+++ b/src/app/player/components/video-player/video-player.component.ts
@@ -1,15 +1,25 @@
-import { Component, OnInit, ViewChild } from '@angular/core';
+import { Component, NgZone, OnInit, ViewChild } from '@angular/core';
 import { MatSidenav } from '@angular/material/sidenav';
 import { MatSnackBar } from '@angular/material/snack-bar';
 import { StorageMap } from '@ngx-pwa/local-storage';
-import { Observable } from 'rxjs';
-import { tap } from 'rxjs/operators';
+import { filter, Observable } from 'rxjs';
 import { Channel } from '../../../../../shared/channel.interface';
+import {
+    PLAYLIST_GET_ALL,
+    PLAYLIST_GET_ALL_RESPONSE,
+    PLAYLIST_GET_BY_ID,
+    PLAYLIST_PARSE_RESPONSE,
+} from '../../../../../shared/ipc-commands';
+import { Playlist } from '../../../../../shared/playlist.interface';
+import { DataService } from '../../../services/data.service';
 import { Settings, VideoPlayer } from '../../../settings/settings.interface';
 import { STORE_KEY } from '../../../shared/enums/store-keys.enum';
 import { ChannelQuery, ChannelStore } from '../../../state';
 import { EpgProgram } from './../../models/epg-program.model';
 
+/** Possible sidebar view options */
+type SidebarView = 'CHANNELS' | 'PLAYLISTS';
+
 @Component({
     selector: 'app-video-player',
     templateUrl: './video-player.component.html',
@@ -19,14 +29,11 @@ export class VideoPlayerComponent implements OnInit {
     /** Active selected channel */
     activeChannel$: Observable<Channel> = this.channelQuery
         .select((state) => state.active)
-        .pipe(tap((channel) => (this.channelTitle = channel?.name)));
+        .pipe(filter((channel) => Boolean(channel)));
 
     /** Channels list */
     channels$: Observable<Channel[]> = this.channelQuery.selectAll();
 
-    /** Name of the selected channel */
-    channelTitle: string;
-
     /** EPG availability flag */
     epgAvailable$: Observable<boolean> = this.channelQuery.select(
         (store) => store.epgAvailable
@@ -48,12 +55,35 @@ export class VideoPlayerComponent implements OnInit {
         showCaptions: false,
     };
 
+    /** Playlists array */
+    playlists = [];
+
     /** Sidebar object */
     @ViewChild('sidenav') sideNav: MatSidenav;
 
     /** ID of the current playlist */
     playlistId = this.channelQuery.getValue().playlistId;
 
+    /** IPC Renderer commands list with callbacks */
+    commandsList = [
+        {
+            id: PLAYLIST_GET_ALL_RESPONSE,
+            execute: (response: { payload: Playlist[] }): void => {
+                this.playlists = response.payload;
+            },
+        },
+        {
+            id: PLAYLIST_PARSE_RESPONSE,
+            execute: (response: { payload: Playlist }): void => {
+                this.channelStore.setPlaylist(response.payload);
+                this.setSidebarView('CHANNELS');
+            },
+        },
+    ];
+
+    /** Current sidebar view */
+    sidebarView: SidebarView = 'CHANNELS';
+
     /**
      * Creates an instance of VideoPlayerComponent
      * @param channelQuery akita's channel query
@@ -64,15 +94,39 @@ export class VideoPlayerComponent implements OnInit {
     constructor(
         private channelQuery: ChannelQuery,
         private channelStore: ChannelStore,
+        private dataService: DataService,
+        private ngZone: NgZone,
         private snackBar: MatSnackBar,
         private storage: StorageMap
-    ) {}
+    ) {
+        this.dataService.sendIpcEvent(PLAYLIST_GET_ALL);
+    }
 
     /**
      * Sets video player and subscribes to channel list from the store
      */
     ngOnInit(): void {
         this.applySettings();
+        this.setRendererListeners();
+    }
+
+    /**
+     * Set electrons main process listeners
+     */
+    setRendererListeners(): void {
+        this.commandsList.forEach((command) => {
+            if (this.dataService.isElectron) {
+                this.dataService.listenOn(command.id, (event, response) =>
+                    this.ngZone.run(() => command.execute(response))
+                );
+            } else {
+                this.dataService.listenOn(command.id, (response) => {
+                    if (response.data.type === command.id) {
+                        command.execute(response.data);
+                    }
+                });
+            }
+        });
     }
 
     /**
@@ -104,4 +158,22 @@ export class VideoPlayerComponent implements OnInit {
         this.snackBar.open('Favorites were updated!', null, { duration: 2000 });
         this.channelStore.updateFavorite(channel);
     }
+
+    /**
+     * Switches the sidebar view to the specified value
+     * @param view view to change
+     */
+    setSidebarView(view: SidebarView) {
+        this.sidebarView = view;
+    }
+
+    /**
+     * Requests playlist by id
+     * @param playlistId playlist id
+     */
+    getPlaylist(playlistId: string): void {
+        this.dataService.sendIpcEvent(PLAYLIST_GET_BY_ID, {
+            id: playlistId,
+        });
+    }
 }