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, componentPagination: ComponentPagination): Observable<ResultList<VideoPlaylist>> {
  49     const url = VideoChannelService.BASE_VIDEO_CHANNEL_URL + videoChannel.nameWithHost + '/video-playlists'
  50     const pagination = this.restService.componentPaginationToRestPagination(componentPagination)
  51
  52     let params = new HttpParams()
  53     params = this.restService.addRestGetParams(params, pagination)
  54
  55     return this.authHttp.get<ResultList<VideoPlaylist>>(url, { params })
  56                .pipe(
  57                  switchMap(res => this.extractPlaylists(res)),
  58                  catchError(err => this.restExtractor.handleError(err))
  59                )
  60   }
  61
  62   listAccountPlaylists (account: Account, componentPagination: ComponentPagination, sort: string): Observable<ResultList<VideoPlaylist>> {
  63     const url = AccountService.BASE_ACCOUNT_URL + account.nameWithHost + '/video-playlists'
  64     const pagination = componentPagination
  65       ? this.restService.componentPaginationToRestPagination(componentPagination)
  66       : undefined
  67
  68     let params = new HttpParams()
  69     params = this.restService.addRestGetParams(params, pagination, sort)
  70
  71     return this.authHttp.get<ResultList<VideoPlaylist>>(url, { params })
  72                .pipe(
  73                  switchMap(res => this.extractPlaylists(res)),
  74                  catchError(err => this.restExtractor.handleError(err))
  75                )
  76   }
  77
  78   getVideoPlaylist (id: string | number) {
  79     const url = VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + id
  80
  81     return this.authHttp.get<VideoPlaylist>(url)
  82                .pipe(
  83                  switchMap(res => this.extractPlaylist(res)),
  84                  catchError(err => this.restExtractor.handleError(err))
  85                )
  86   }
  87
  88   createVideoPlaylist (body: VideoPlaylistCreate) {
  89     const data = objectToFormData(body)
  90
  91     return this.authHttp.post<{ videoPlaylist: { id: number } }>(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL, data)
  92                .pipe(
  93                  catchError(err => this.restExtractor.handleError(err))
  94                )
  95   }
  96
  97   updateVideoPlaylist (videoPlaylist: VideoPlaylist, body: VideoPlaylistUpdate) {
  98     const data = objectToFormData(body)
  99
 100     return this.authHttp.put(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylist.id, data)
 101                .pipe(
 102                  map(this.restExtractor.extractDataBool),
 103                  catchError(err => this.restExtractor.handleError(err))
 104                )
 105   }
 106
 107   removeVideoPlaylist (videoPlaylist: VideoPlaylist) {
 108     return this.authHttp.delete(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylist.id)
 109                .pipe(
 110                  map(this.restExtractor.extractDataBool),
 111                  catchError(err => this.restExtractor.handleError(err))
 112                )
 113   }
 114
 115   addVideoInPlaylist (playlistId: number, body: VideoPlaylistElementCreate) {
 116     const url = VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos'
 117
 118     return this.authHttp.post<{ videoPlaylistElement: { id: number } }>(url, body)
 119                .pipe(catchError(err => this.restExtractor.handleError(err)))
 120   }
 121
 122   updateVideoOfPlaylist (playlistId: number, playlistElementId: number, body: VideoPlaylistElementUpdate) {
 123     return this.authHttp.put(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/' + playlistElementId, body)
 124                .pipe(
 125                  map(this.restExtractor.extractDataBool),
 126                  catchError(err => this.restExtractor.handleError(err))
 127                )
 128   }
 129
 130   removeVideoFromPlaylist (playlistId: number, playlistElementId: number) {
 131     return this.authHttp.delete(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/' + playlistElementId)
 132                .pipe(
 133                  map(this.restExtractor.extractDataBool),
 134                  catchError(err => this.restExtractor.handleError(err))
 135                )
 136   }
 137
 138   reorderPlaylist (playlistId: number, oldPosition: number, newPosition: number) {
 139     const body: VideoPlaylistReorder = {
 140       startPosition: oldPosition,
 141       insertAfterPosition: newPosition
 142     }
 143
 144     return this.authHttp.post(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/reorder', body)
 145                .pipe(
 146                  map(this.restExtractor.extractDataBool),
 147                  catchError(err => this.restExtractor.handleError(err))
 148                )
 149   }
 150
 151   getPlaylistVideos (
 152     videoPlaylistId: number | string,
 153     componentPagination: ComponentPagination
 154   ): Observable<ResultList<VideoPlaylistElement>> {
 155     const path = VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylistId + '/videos'
 156     const pagination = this.restService.componentPaginationToRestPagination(componentPagination)
 157
 158     let params = new HttpParams()
 159     params = this.restService.addRestGetParams(params, pagination)
 160
 161     return this.authHttp
 162                .get<ResultList<ServerVideoPlaylistElement>>(path, { params })
 163                .pipe(
 164                  switchMap(res => this.extractVideoPlaylistElements(res)),
 165                  catchError(err => this.restExtractor.handleError(err))
 166                )
 167   }
 168
 169   doesVideoExistInPlaylist (videoId: number) {
 170     this.videoExistsInPlaylistSubject.next(videoId)
 171
 172     return this.videoExistsInPlaylistObservable.pipe(first())
 173   }
 174
 175   extractPlaylists (result: ResultList<VideoPlaylistServerModel>) {
 176     return this.serverService.localeObservable
 177                .pipe(
 178                  map(translations => {
 179                    const playlistsJSON = result.data
 180                    const total = result.total
 181                    const playlists: VideoPlaylist[] = []
 182
 183                    for (const playlistJSON of playlistsJSON) {
 184                      playlists.push(new VideoPlaylist(playlistJSON, translations))
 185                    }
 186
 187                    return { data: playlists, total }
 188                  })
 189                )
 190   }
 191
 192   extractPlaylist (playlist: VideoPlaylistServerModel) {
 193     return this.serverService.localeObservable
 194                .pipe(map(translations => new VideoPlaylist(playlist, translations)))
 195   }
 196
 197   extractVideoPlaylistElements (result: ResultList<ServerVideoPlaylistElement>) {
 198     return this.serverService.localeObservable
 199                .pipe(
 200                  map(translations => {
 201                    const elementsJson = result.data
 202                    const total = result.total
 203                    const elements: VideoPlaylistElement[] = []
 204
 205                    for (const elementJson of elementsJson) {
 206                      elements.push(new VideoPlaylistElement(elementJson, translations))
 207                    }
 208
 209                    return { total, data: elements }
 210                  })
 211                )
 212   }
 213
 214   private doVideosExistInPlaylist (videoIds: number[]): Observable<VideoExistInPlaylist> {
 215     const url = VideoPlaylistService.MY_VIDEO_PLAYLIST_URL + 'videos-exist'
 216     let params = new HttpParams()
 217
 218     params = this.restService.addObjectParams(params, { videoIds })
 219
 220     return this.authHttp.get<VideoExistInPlaylist>(url, { params })
 221                .pipe(catchError(err => this.restExtractor.handleError(err)))
 222   }
 223 }