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 import { ComponentPagination } from '@app/shared/rest/component-pagination.model'
  22 import { VideoPlaylistElement as ServerVideoPlaylistElement } from '@shared/models/videos/playlist/video-playlist-element.model'
  23 import { VideoPlaylistElement } from '@app/shared/video-playlist/video-playlist-element.model'
  24
  25 @Injectable()
  26 export class VideoPlaylistService {
  27   static BASE_VIDEO_PLAYLIST_URL = environment.apiUrl + '/api/v1/video-playlists/'
  28   static MY_VIDEO_PLAYLIST_URL = environment.apiUrl + '/api/v1/users/me/video-playlists/'
  29
  30   // Use a replay subject because we "next" a value before subscribing
  31   private videoExistsInPlaylistSubject: Subject<number> = new ReplaySubject(1)
  32   private readonly videoExistsInPlaylistObservable: Observable<VideoExistInPlaylist>
  33
  34   constructor (
  35     private authHttp: HttpClient,
  36     private serverService: ServerService,
  37     private restExtractor: RestExtractor,
  38     private restService: RestService
  39   ) {
  40     this.videoExistsInPlaylistObservable = this.videoExistsInPlaylistSubject.pipe(
  41       bufferTime(500),
  42       filter(videoIds => videoIds.length !== 0),
  43       switchMap(videoIds => this.doVideosExistInPlaylist(videoIds)),
  44       share()
  45     )
  46   }
  47
  48   listChannelPlaylists (videoChannel: VideoChannel): Observable<ResultList<VideoPlaylist>> {
  49     const url = VideoChannelService.BASE_VIDEO_CHANNEL_URL + videoChannel.nameWithHost + '/video-playlists'
  50
  51     return this.authHttp.get<ResultList<VideoPlaylist>>(url)
  52                .pipe(
  53                  switchMap(res => this.extractPlaylists(res)),
  54                  catchError(err => this.restExtractor.handleError(err))
  55                )
  56   }
  57
  58   listAccountPlaylists (account: Account, sort: string): Observable<ResultList<VideoPlaylist>> {
  59     const url = AccountService.BASE_ACCOUNT_URL + account.nameWithHost + '/video-playlists'
  60
  61     let params = new HttpParams()
  62     params = this.restService.addRestGetParams(params, undefined, sort)
  63
  64     return this.authHttp.get<ResultList<VideoPlaylist>>(url, { params })
  65                .pipe(
  66                  switchMap(res => this.extractPlaylists(res)),
  67                  catchError(err => this.restExtractor.handleError(err))
  68                )
  69   }
  70
  71   getVideoPlaylist (id: string | number) {
  72     const url = VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + id
  73
  74     return this.authHttp.get<VideoPlaylist>(url)
  75                .pipe(
  76                  switchMap(res => this.extractPlaylist(res)),
  77                  catchError(err => this.restExtractor.handleError(err))
  78                )
  79   }
  80
  81   createVideoPlaylist (body: VideoPlaylistCreate) {
  82     const data = objectToFormData(body)
  83
  84     return this.authHttp.post<{ videoPlaylist: { id: number } }>(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL, data)
  85                .pipe(
  86                  catchError(err => this.restExtractor.handleError(err))
  87                )
  88   }
  89
  90   updateVideoPlaylist (videoPlaylist: VideoPlaylist, body: VideoPlaylistUpdate) {
  91     const data = objectToFormData(body)
  92
  93     return this.authHttp.put(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylist.id, data)
  94                .pipe(
  95                  map(this.restExtractor.extractDataBool),
  96                  catchError(err => this.restExtractor.handleError(err))
  97                )
  98   }
  99
 100   removeVideoPlaylist (videoPlaylist: VideoPlaylist) {
 101     return this.authHttp.delete(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylist.id)
 102                .pipe(
 103                  map(this.restExtractor.extractDataBool),
 104                  catchError(err => this.restExtractor.handleError(err))
 105                )
 106   }
 107
 108   addVideoInPlaylist (playlistId: number, body: VideoPlaylistElementCreate) {
 109     return this.authHttp.post(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos', body)
 110                .pipe(
 111                  map(this.restExtractor.extractDataBool),
 112                  catchError(err => this.restExtractor.handleError(err))
 113                )
 114   }
 115
 116   updateVideoOfPlaylist (playlistId: number, playlistElementId: number, body: VideoPlaylistElementUpdate) {
 117     return this.authHttp.put(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/' + playlistElementId, body)
 118                .pipe(
 119                  map(this.restExtractor.extractDataBool),
 120                  catchError(err => this.restExtractor.handleError(err))
 121                )
 122   }
 123
 124   removeVideoFromPlaylist (playlistId: number, playlistElementId: number) {
 125     return this.authHttp.delete(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/' + playlistElementId)
 126                .pipe(
 127                  map(this.restExtractor.extractDataBool),
 128                  catchError(err => this.restExtractor.handleError(err))
 129                )
 130   }
 131
 132   reorderPlaylist (playlistId: number, oldPosition: number, newPosition: number) {
 133     const body: VideoPlaylistReorder = {
 134       startPosition: oldPosition,
 135       insertAfterPosition: newPosition
 136     }
 137
 138     return this.authHttp.post(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/reorder', body)
 139                .pipe(
 140                  map(this.restExtractor.extractDataBool),
 141                  catchError(err => this.restExtractor.handleError(err))
 142                )
 143   }
 144
 145   getPlaylistVideos (
 146     videoPlaylistId: number | string,
 147     componentPagination: ComponentPagination
 148   ): Observable<ResultList<VideoPlaylistElement>> {
 149     const path = VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylistId + '/videos'
 150     const pagination = this.restService.componentPaginationToRestPagination(componentPagination)
 151
 152     let params = new HttpParams()
 153     params = this.restService.addRestGetParams(params, pagination)
 154
 155     return this.authHttp
 156                .get<ResultList<ServerVideoPlaylistElement>>(path, { params })
 157                .pipe(
 158                  switchMap(res => this.extractVideoPlaylistElements(res)),
 159                  catchError(err => this.restExtractor.handleError(err))
 160                )
 161   }
 162
 163   doesVideoExistInPlaylist (videoId: number) {
 164     this.videoExistsInPlaylistSubject.next(videoId)
 165
 166     return this.videoExistsInPlaylistObservable.pipe(first())
 167   }
 168
 169   extractPlaylists (result: ResultList<VideoPlaylistServerModel>) {
 170     return this.serverService.localeObservable
 171                .pipe(
 172                  map(translations => {
 173                    const playlistsJSON = result.data
 174                    const total = result.total
 175                    const playlists: VideoPlaylist[] = []
 176
 177                    for (const playlistJSON of playlistsJSON) {
 178                      playlists.push(new VideoPlaylist(playlistJSON, translations))
 179                    }
 180
 181                    return { data: playlists, total }
 182                  })
 183                )
 184   }
 185
 186   extractPlaylist (playlist: VideoPlaylistServerModel) {
 187     return this.serverService.localeObservable
 188                .pipe(map(translations => new VideoPlaylist(playlist, translations)))
 189   }
 190
 191   extractVideoPlaylistElements (result: ResultList<ServerVideoPlaylistElement>) {
 192     return this.serverService.localeObservable
 193                .pipe(
 194                  map(translations => {
 195                    const elementsJson = result.data
 196                    const total = result.total
 197                    const elements: VideoPlaylistElement[] = []
 198
 199                    for (const elementJson of elementsJson) {
 200                      elements.push(new VideoPlaylistElement(elementJson, translations))
 201                    }
 202
 203                    return { total, data: elements }
 204                  })
 205                )
 206   }
 207
 208   private doVideosExistInPlaylist (videoIds: number[]): Observable<VideoExistInPlaylist> {
 209     const url = VideoPlaylistService.MY_VIDEO_PLAYLIST_URL + 'videos-exist'
 210     let params = new HttpParams()
 211
 212     params = this.restService.addObjectParams(params, { videoIds })
 213
 214     return this.authHttp.get<VideoExistInPlaylist>(url, { params })
 215                .pipe(catchError(err => this.restExtractor.handleError(err)))
 216   }
 217 }