1 import { bufferTime, catchError, filter, map, share, switchMap, tap } from 'rxjs/operators'
2 import { Injectable } from '@angular/core'
3 import { merge, Observable, of, 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 { AuthUser, 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, VideosExistInPlaylists } from '@shared/models/videos/playlist/video-exist-in-playlist.model'
20 import { VideoPlaylistReorder } from '@shared/models/videos/playlist/video-playlist-reorder.model'
21 import { ComponentPaginationLight } 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 import { uniq } from 'lodash-es'
25 import * as debug from 'debug'
27 const logger = debug('peertube:playlists:VideoPlaylistService')
29 export type CachedPlaylist = VideoPlaylist | { id: number, displayName: string }
32 export class VideoPlaylistService {
33 static BASE_VIDEO_PLAYLIST_URL = environment.apiUrl + '/api/v1/video-playlists/'
34 static MY_VIDEO_PLAYLIST_URL = environment.apiUrl + '/api/v1/users/me/video-playlists/'
36 // Use a replay subject because we "next" a value before subscribing
37 private videoExistsInPlaylistNotifier = new ReplaySubject<number>(1)
38 private videoExistsInPlaylistCacheSubject = new Subject<VideosExistInPlaylists>()
39 private readonly videoExistsInPlaylistObservable: Observable<VideosExistInPlaylists>
41 private videoExistsObservableCache: { [ id: number ]: Observable<VideoExistInPlaylist[]> } = {}
42 private videoExistsCache: { [ id: number ]: VideoExistInPlaylist[] } = {}
44 private myAccountPlaylistCache: ResultList<CachedPlaylist> = undefined
45 private myAccountPlaylistCacheRunning: Observable<ResultList<CachedPlaylist>>
46 private myAccountPlaylistCacheSubject = new Subject<ResultList<CachedPlaylist>>()
49 private authHttp: HttpClient,
50 private serverService: ServerService,
51 private restExtractor: RestExtractor,
52 private restService: RestService
54 this.videoExistsInPlaylistObservable = merge(
55 this.videoExistsInPlaylistNotifier.pipe(
57 filter(videoIds => videoIds.length !== 0),
58 map(videoIds => uniq(videoIds)),
59 switchMap(videoIds => this.doVideosExistInPlaylist(videoIds)),
63 this.videoExistsInPlaylistCacheSubject
67 listChannelPlaylists (videoChannel: VideoChannel, componentPagination: ComponentPaginationLight): Observable<ResultList<VideoPlaylist>> {
68 const url = VideoChannelService.BASE_VIDEO_CHANNEL_URL + videoChannel.nameWithHost + '/video-playlists'
69 const pagination = this.restService.componentPaginationToRestPagination(componentPagination)
71 let params = new HttpParams()
72 params = this.restService.addRestGetParams(params, pagination)
74 return this.authHttp.get<ResultList<VideoPlaylist>>(url, { params })
76 switchMap(res => this.extractPlaylists(res)),
77 catchError(err => this.restExtractor.handleError(err))
81 listMyPlaylistWithCache (user: AuthUser, search?: string) {
83 if (this.myAccountPlaylistCacheRunning) return this.myAccountPlaylistCacheRunning
84 if (this.myAccountPlaylistCache) return of(this.myAccountPlaylistCache)
87 const obs = this.listAccountPlaylists(user.account, undefined, '-updatedAt', search)
91 this.myAccountPlaylistCacheRunning = undefined
92 this.myAccountPlaylistCache = result
98 if (!search) this.myAccountPlaylistCacheRunning = obs
102 listAccountPlaylists (
104 componentPagination: ComponentPaginationLight,
107 ): Observable<ResultList<VideoPlaylist>> {
108 const url = AccountService.BASE_ACCOUNT_URL + account.nameWithHost + '/video-playlists'
109 const pagination = componentPagination
110 ? this.restService.componentPaginationToRestPagination(componentPagination)
113 let params = new HttpParams()
114 params = this.restService.addRestGetParams(params, pagination, sort)
115 if (search) params = this.restService.addObjectParams(params, { search })
117 return this.authHttp.get<ResultList<VideoPlaylist>>(url, { params })
119 switchMap(res => this.extractPlaylists(res)),
120 catchError(err => this.restExtractor.handleError(err))
124 getVideoPlaylist (id: string | number) {
125 const url = VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + id
127 return this.authHttp.get<VideoPlaylist>(url)
129 switchMap(res => this.extractPlaylist(res)),
130 catchError(err => this.restExtractor.handleError(err))
134 createVideoPlaylist (body: VideoPlaylistCreate) {
135 const data = objectToFormData(body)
137 return this.authHttp.post<{ videoPlaylist: { id: number } }>(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL, data)
140 this.myAccountPlaylistCache.total++
142 this.myAccountPlaylistCache.data.push({
143 id: res.videoPlaylist.id,
144 displayName: body.displayName
147 this.myAccountPlaylistCacheSubject.next(this.myAccountPlaylistCache)
149 catchError(err => this.restExtractor.handleError(err))
153 updateVideoPlaylist (videoPlaylist: VideoPlaylist, body: VideoPlaylistUpdate) {
154 const data = objectToFormData(body)
156 return this.authHttp.put(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylist.id, data)
158 map(this.restExtractor.extractDataBool),
160 const playlist = this.myAccountPlaylistCache.data.find(p => p.id === videoPlaylist.id)
161 playlist.displayName = body.displayName
163 this.myAccountPlaylistCacheSubject.next(this.myAccountPlaylistCache)
165 catchError(err => this.restExtractor.handleError(err))
169 removeVideoPlaylist (videoPlaylist: VideoPlaylist) {
170 return this.authHttp.delete(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylist.id)
172 map(this.restExtractor.extractDataBool),
174 this.myAccountPlaylistCache.total--
175 this.myAccountPlaylistCache.data = this.myAccountPlaylistCache.data
176 .filter(p => p.id !== videoPlaylist.id)
178 this.myAccountPlaylistCacheSubject.next(this.myAccountPlaylistCache)
180 catchError(err => this.restExtractor.handleError(err))
184 addVideoInPlaylist (playlistId: number, body: VideoPlaylistElementCreate) {
185 const url = VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos'
187 return this.authHttp.post<{ videoPlaylistElement: { id: number } }>(url, body)
190 const existsResult = this.videoExistsCache[body.videoId]
193 playlistElementId: res.videoPlaylistElement.id,
194 startTimestamp: body.startTimestamp,
195 stopTimestamp: body.stopTimestamp
198 this.runPlaylistCheck(body.videoId)
200 catchError(err => this.restExtractor.handleError(err))
204 updateVideoOfPlaylist (playlistId: number, playlistElementId: number, body: VideoPlaylistElementUpdate, videoId: number) {
205 return this.authHttp.put(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/' + playlistElementId, body)
207 map(this.restExtractor.extractDataBool),
209 const existsResult = this.videoExistsCache[videoId]
210 const elem = existsResult.find(e => e.playlistElementId === playlistElementId)
212 elem.startTimestamp = body.startTimestamp
213 elem.stopTimestamp = body.stopTimestamp
215 this.runPlaylistCheck(videoId)
217 catchError(err => this.restExtractor.handleError(err))
221 removeVideoFromPlaylist (playlistId: number, playlistElementId: number, videoId?: number) {
222 return this.authHttp.delete(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/' + playlistElementId)
224 map(this.restExtractor.extractDataBool),
228 this.videoExistsCache[videoId] = this.videoExistsCache[videoId].filter(e => e.playlistElementId !== playlistElementId)
229 this.runPlaylistCheck(videoId)
231 catchError(err => this.restExtractor.handleError(err))
235 reorderPlaylist (playlistId: number, oldPosition: number, newPosition: number) {
236 const body: VideoPlaylistReorder = {
237 startPosition: oldPosition,
238 insertAfterPosition: newPosition
241 return this.authHttp.post(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/reorder', body)
243 map(this.restExtractor.extractDataBool),
244 catchError(err => this.restExtractor.handleError(err))
249 videoPlaylistId: number | string,
250 componentPagination: ComponentPaginationLight
251 ): Observable<ResultList<VideoPlaylistElement>> {
252 const path = VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylistId + '/videos'
253 const pagination = this.restService.componentPaginationToRestPagination(componentPagination)
255 let params = new HttpParams()
256 params = this.restService.addRestGetParams(params, pagination)
259 .get<ResultList<ServerVideoPlaylistElement>>(path, { params })
261 switchMap(res => this.extractVideoPlaylistElements(res)),
262 catchError(err => this.restExtractor.handleError(err))
266 listenToMyAccountPlaylistsChange () {
267 return this.myAccountPlaylistCacheSubject.asObservable()
270 listenToVideoPlaylistChange (videoId: number) {
271 if (this.videoExistsObservableCache[ videoId ]) {
272 return this.videoExistsObservableCache[ videoId ]
275 const obs = this.videoExistsInPlaylistObservable
277 map(existsResult => existsResult[ videoId ]),
279 tap(result => this.videoExistsCache[ videoId ] = result)
282 this.videoExistsObservableCache[ videoId ] = obs
286 runPlaylistCheck (videoId: number) {
287 logger('Running playlist check.')
289 if (this.videoExistsCache[videoId]) {
290 logger('Found cache for %d.', videoId)
292 return this.videoExistsInPlaylistCacheSubject.next({ [videoId]: this.videoExistsCache[videoId] })
295 logger('Fetching from network for %d.', videoId)
296 return this.videoExistsInPlaylistNotifier.next(videoId)
299 extractPlaylists (result: ResultList<VideoPlaylistServerModel>) {
300 return this.serverService.getServerLocale()
302 map(translations => {
303 const playlistsJSON = result.data
304 const total = result.total
305 const playlists: VideoPlaylist[] = []
307 for (const playlistJSON of playlistsJSON) {
308 playlists.push(new VideoPlaylist(playlistJSON, translations))
311 return { data: playlists, total }
316 extractPlaylist (playlist: VideoPlaylistServerModel) {
317 return this.serverService.getServerLocale()
318 .pipe(map(translations => new VideoPlaylist(playlist, translations)))
321 extractVideoPlaylistElements (result: ResultList<ServerVideoPlaylistElement>) {
322 return this.serverService.getServerLocale()
324 map(translations => {
325 const elementsJson = result.data
326 const total = result.total
327 const elements: VideoPlaylistElement[] = []
329 for (const elementJson of elementsJson) {
330 elements.push(new VideoPlaylistElement(elementJson, translations))
333 return { total, data: elements }
338 private doVideosExistInPlaylist (videoIds: number[]): Observable<VideosExistInPlaylists> {
339 const url = VideoPlaylistService.MY_VIDEO_PLAYLIST_URL + 'videos-exist'
341 let params = new HttpParams()
342 params = this.restService.addObjectParams(params, { videoIds })
344 return this.authHttp.get<VideoExistInPlaylist>(url, { params, headers: { ignoreLoadingBar: '' } })
345 .pipe(catchError(err => this.restExtractor.handleError(err)))