client/src/app/shared/video-playlist/video-playlist.service.ts

   1 import { bufferTime, catchError, filter, first, map, share, switchMap } from 'rxjs/operators'
   2 import { Injectable } from '@angular/core'
   3 import { Observable, ReplaySubject, Subject } from 'rxjs'
   4 import { RestExtractor } from '../rest/rest-extractor.service'
   5 import { HttpClient, HttpParams } from '@angular/common/http'
   6 import { ResultList, VideoPlaylistElementCreate, VideoPlaylistElementUpdate } from '../../../../../shared'
   7 import { environment } from '../../../environments/environment'
   8 import { VideoPlaylist as VideoPlaylistServerModel } from '@shared/models/videos/playlist/video-playlist.model'
   9 import { VideoChannelService } from '@app/shared/video-channel/video-channel.service'
  10 import { VideoChannel } from '@app/shared/video-channel/video-channel.model'
  11 import { VideoPlaylistCreate } from '@shared/models/videos/playlist/video-playlist-create.model'
  12 import { VideoPlaylistUpdate } from '@shared/models/videos/playlist/video-playlist-update.model'
  13 import { objectToFormData } from '@app/shared/misc/utils'
  14 import { ServerService } from '@app/core'
  15 import { VideoPlaylist } from '@app/shared/video-playlist/video-playlist.model'
  16 import { AccountService } from '@app/shared/account/account.service'
  17 import { Account } from '@app/shared/account/account.model'
  18 import { RestService } from '@app/shared/rest'
  19 import { VideoExistInPlaylist } from '@shared/models/videos/playlist/video-exist-in-playlist.model'
  20 import { VideoPlaylistReorder } from '@shared/models/videos/playlist/video-playlist-reorder.model'
  21
  22 @Injectable()
  23 export class VideoPlaylistService {
  24   static BASE_VIDEO_PLAYLIST_URL = environment.apiUrl + '/api/v1/video-playlists/'
  25   static MY_VIDEO_PLAYLIST_URL = environment.apiUrl + '/api/v1/users/me/video-playlists/'
  26
  27   // Use a replay subject because we "next" a value before subscribing
  28   private videoExistsInPlaylistSubject: Subject<number> = new ReplaySubject(1)
  29   private readonly videoExistsInPlaylistObservable: Observable<VideoExistInPlaylist>
  30
  31   constructor (
  32     private authHttp: HttpClient,
  33     private serverService: ServerService,
  34     private restExtractor: RestExtractor,
  35     private restService: RestService
  36   ) {
  37     this.videoExistsInPlaylistObservable = this.videoExistsInPlaylistSubject.pipe(
  38       bufferTime(500),
  39       filter(videoIds => videoIds.length !== 0),
  40       switchMap(videoIds => this.doVideosExistInPlaylist(videoIds)),
  41       share()
  42     )
  43   }
  44
  45   listChannelPlaylists (videoChannel: VideoChannel): Observable<ResultList<VideoPlaylist>> {
  46     const url = VideoChannelService.BASE_VIDEO_CHANNEL_URL + videoChannel.nameWithHost + '/video-playlists'
  47
  48     return this.authHttp.get<ResultList<VideoPlaylist>>(url)
  49                .pipe(
  50                  switchMap(res => this.extractPlaylists(res)),
  51                  catchError(err => this.restExtractor.handleError(err))
  52                )
  53   }
  54
  55   listAccountPlaylists (account: Account, sort: string): Observable<ResultList<VideoPlaylist>> {
  56     const url = AccountService.BASE_ACCOUNT_URL + account.nameWithHost + '/video-playlists'
  57
  58     let params = new HttpParams()
  59     params = this.restService.addRestGetParams(params, undefined, sort)
  60
  61     return this.authHttp.get<ResultList<VideoPlaylist>>(url, { params })
  62                .pipe(
  63                  switchMap(res => this.extractPlaylists(res)),
  64                  catchError(err => this.restExtractor.handleError(err))
  65                )
  66   }
  67
  68   getVideoPlaylist (id: string | number) {
  69     const url = VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + id
  70
  71     return this.authHttp.get<VideoPlaylist>(url)
  72                .pipe(
  73                  switchMap(res => this.extractPlaylist(res)),
  74                  catchError(err => this.restExtractor.handleError(err))
  75                )
  76   }
  77
  78   createVideoPlaylist (body: VideoPlaylistCreate) {
  79     const data = objectToFormData(body)
  80
  81     return this.authHttp.post<{ videoPlaylist: { id: number } }>(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL, data)
  82                .pipe(
  83                  catchError(err => this.restExtractor.handleError(err))
  84                )
  85   }
  86
  87   updateVideoPlaylist (videoPlaylist: VideoPlaylist, body: VideoPlaylistUpdate) {
  88     const data = objectToFormData(body)
  89
  90     return this.authHttp.put(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylist.id, data)
  91                .pipe(
  92                  map(this.restExtractor.extractDataBool),
  93                  catchError(err => this.restExtractor.handleError(err))
  94                )
  95   }
  96
  97   removeVideoPlaylist (videoPlaylist: VideoPlaylist) {
  98     return this.authHttp.delete(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylist.id)
  99                .pipe(
 100                  map(this.restExtractor.extractDataBool),
 101                  catchError(err => this.restExtractor.handleError(err))
 102                )
 103   }
 104
 105   addVideoInPlaylist (playlistId: number, body: VideoPlaylistElementCreate) {
 106     return this.authHttp.post(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos', body)
 107                .pipe(
 108                  map(this.restExtractor.extractDataBool),
 109                  catchError(err => this.restExtractor.handleError(err))
 110                )
 111   }
 112
 113   updateVideoOfPlaylist (playlistId: number, videoId: number, body: VideoPlaylistElementUpdate) {
 114     return this.authHttp.put(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/' + videoId, body)
 115                .pipe(
 116                  map(this.restExtractor.extractDataBool),
 117                  catchError(err => this.restExtractor.handleError(err))
 118                )
 119   }
 120
 121   removeVideoFromPlaylist (playlistId: number, videoId: number) {
 122     return this.authHttp.delete(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/' + videoId)
 123                .pipe(
 124                  map(this.restExtractor.extractDataBool),
 125                  catchError(err => this.restExtractor.handleError(err))
 126                )
 127   }
 128
 129   reorderPlaylist (playlistId: number, oldPosition: number, newPosition: number) {
 130     const body: VideoPlaylistReorder = {
 131       startPosition: oldPosition,
 132       insertAfterPosition: newPosition
 133     }
 134
 135     return this.authHttp.post(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/reorder', body)
 136                .pipe(
 137                  map(this.restExtractor.extractDataBool),
 138                  catchError(err => this.restExtractor.handleError(err))
 139                )
 140   }
 141
 142   doesVideoExistInPlaylist (videoId: number) {
 143     this.videoExistsInPlaylistSubject.next(videoId)
 144
 145     return this.videoExistsInPlaylistObservable.pipe(first())
 146   }
 147
 148   extractPlaylists (result: ResultList<VideoPlaylistServerModel>) {
 149     return this.serverService.localeObservable
 150                .pipe(
 151                  map(translations => {
 152                    const playlistsJSON = result.data
 153                    const total = result.total
 154                    const playlists: VideoPlaylist[] = []
 155
 156                    for (const playlistJSON of playlistsJSON) {
 157                      playlists.push(new VideoPlaylist(playlistJSON, translations))
 158                    }
 159
 160                    return { data: playlists, total }
 161                  })
 162                )
 163   }
 164
 165   extractPlaylist (playlist: VideoPlaylistServerModel) {
 166     return this.serverService.localeObservable
 167                .pipe(map(translations => new VideoPlaylist(playlist, translations)))
 168   }
 169
 170   private doVideosExistInPlaylist (videoIds: number[]): Observable<VideoExistInPlaylist> {
 171     const url = VideoPlaylistService.MY_VIDEO_PLAYLIST_URL + 'videos-exist'
 172     let params = new HttpParams()
 173
 174     params = this.restService.addObjectParams(params, { videoIds })
 175
 176     return this.authHttp.get<VideoExistInPlaylist>(url, { params })
 177                .pipe(catchError(err => this.restExtractor.handleError(err)))
 178   }
 179 }