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1 | import { bufferTime, catchError, filter, map, observeOn, share, switchMap, tap } from 'rxjs/operators' | |
2 | import { Injectable, NgZone } from '@angular/core' | |
3 | import { asyncScheduler, 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' | |
26 | import { enterZone, leaveZone } from '@app/shared/rxjs/zone' | |
27 | ||
28 | const logger = debug('peertube:playlists:VideoPlaylistService') | |
29 | ||
30 | export type CachedPlaylist = VideoPlaylist | { id: number, displayName: string } | |
31 | ||
32 | @Injectable() | |
33 | export class VideoPlaylistService { | |
34 | static BASE_VIDEO_PLAYLIST_URL = environment.apiUrl + '/api/v1/video-playlists/' | |
35 | static MY_VIDEO_PLAYLIST_URL = environment.apiUrl + '/api/v1/users/me/video-playlists/' | |
36 | ||
37 | // Use a replay subject because we "next" a value before subscribing | |
38 | private videoExistsInPlaylistNotifier = new ReplaySubject<number>(1) | |
39 | private videoExistsInPlaylistCacheSubject = new Subject<VideosExistInPlaylists>() | |
40 | private readonly videoExistsInPlaylistObservable: Observable<VideosExistInPlaylists> | |
41 | ||
42 | private videoExistsObservableCache: { [ id: number ]: Observable<VideoExistInPlaylist[]> } = {} | |
43 | private videoExistsCache: { [ id: number ]: VideoExistInPlaylist[] } = {} | |
44 | ||
45 | private myAccountPlaylistCache: ResultList<CachedPlaylist> = undefined | |
46 | private myAccountPlaylistCacheRunning: Observable<ResultList<CachedPlaylist>> | |
47 | private myAccountPlaylistCacheSubject = new Subject<ResultList<CachedPlaylist>>() | |
48 | ||
49 | constructor ( | |
50 | private authHttp: HttpClient, | |
51 | private serverService: ServerService, | |
52 | private restExtractor: RestExtractor, | |
53 | private restService: RestService, | |
54 | private ngZone: NgZone | |
55 | ) { | |
56 | this.videoExistsInPlaylistObservable = merge( | |
57 | this.videoExistsInPlaylistNotifier.pipe( | |
58 | // We leave Angular zone so Protractor does not get stuck | |
59 | bufferTime(500, leaveZone(this.ngZone, asyncScheduler)), | |
60 | filter(videoIds => videoIds.length !== 0), | |
61 | map(videoIds => uniq(videoIds)), | |
62 | observeOn(enterZone(this.ngZone, asyncScheduler)), | |
63 | switchMap(videoIds => this.doVideosExistInPlaylist(videoIds)), | |
64 | share() | |
65 | ), | |
66 | ||
67 | this.videoExistsInPlaylistCacheSubject | |
68 | ) | |
69 | } | |
70 | ||
71 | listChannelPlaylists (videoChannel: VideoChannel, componentPagination: ComponentPaginationLight): Observable<ResultList<VideoPlaylist>> { | |
72 | const url = VideoChannelService.BASE_VIDEO_CHANNEL_URL + videoChannel.nameWithHost + '/video-playlists' | |
73 | const pagination = this.restService.componentPaginationToRestPagination(componentPagination) | |
74 | ||
75 | let params = new HttpParams() | |
76 | params = this.restService.addRestGetParams(params, pagination) | |
77 | ||
78 | return this.authHttp.get<ResultList<VideoPlaylist>>(url, { params }) | |
79 | .pipe( | |
80 | switchMap(res => this.extractPlaylists(res)), | |
81 | catchError(err => this.restExtractor.handleError(err)) | |
82 | ) | |
83 | } | |
84 | ||
85 | listMyPlaylistWithCache (user: AuthUser, search?: string) { | |
86 | if (!search) { | |
87 | if (this.myAccountPlaylistCacheRunning) return this.myAccountPlaylistCacheRunning | |
88 | if (this.myAccountPlaylistCache) return of(this.myAccountPlaylistCache) | |
89 | } | |
90 | ||
91 | const obs = this.listAccountPlaylists(user.account, undefined, '-updatedAt', search) | |
92 | .pipe( | |
93 | tap(result => { | |
94 | if (!search) { | |
95 | this.myAccountPlaylistCacheRunning = undefined | |
96 | this.myAccountPlaylistCache = result | |
97 | } | |
98 | }), | |
99 | share() | |
100 | ) | |
101 | ||
102 | if (!search) this.myAccountPlaylistCacheRunning = obs | |
103 | return obs | |
104 | } | |
105 | ||
106 | listAccountPlaylists ( | |
107 | account: Account, | |
108 | componentPagination: ComponentPaginationLight, | |
109 | sort: string, | |
110 | search?: string | |
111 | ): Observable<ResultList<VideoPlaylist>> { | |
112 | const url = AccountService.BASE_ACCOUNT_URL + account.nameWithHost + '/video-playlists' | |
113 | const pagination = componentPagination | |
114 | ? this.restService.componentPaginationToRestPagination(componentPagination) | |
115 | : undefined | |
116 | ||
117 | let params = new HttpParams() | |
118 | params = this.restService.addRestGetParams(params, pagination, sort) | |
119 | if (search) params = this.restService.addObjectParams(params, { search }) | |
120 | ||
121 | return this.authHttp.get<ResultList<VideoPlaylist>>(url, { params }) | |
122 | .pipe( | |
123 | switchMap(res => this.extractPlaylists(res)), | |
124 | catchError(err => this.restExtractor.handleError(err)) | |
125 | ) | |
126 | } | |
127 | ||
128 | getVideoPlaylist (id: string | number) { | |
129 | const url = VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + id | |
130 | ||
131 | return this.authHttp.get<VideoPlaylist>(url) | |
132 | .pipe( | |
133 | switchMap(res => this.extractPlaylist(res)), | |
134 | catchError(err => this.restExtractor.handleError(err)) | |
135 | ) | |
136 | } | |
137 | ||
138 | createVideoPlaylist (body: VideoPlaylistCreate) { | |
139 | const data = objectToFormData(body) | |
140 | ||
141 | return this.authHttp.post<{ videoPlaylist: { id: number } }>(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL, data) | |
142 | .pipe( | |
143 | tap(res => { | |
144 | this.myAccountPlaylistCache.total++ | |
145 | ||
146 | this.myAccountPlaylistCache.data.push({ | |
147 | id: res.videoPlaylist.id, | |
148 | displayName: body.displayName | |
149 | }) | |
150 | ||
151 | this.myAccountPlaylistCacheSubject.next(this.myAccountPlaylistCache) | |
152 | }), | |
153 | catchError(err => this.restExtractor.handleError(err)) | |
154 | ) | |
155 | } | |
156 | ||
157 | updateVideoPlaylist (videoPlaylist: VideoPlaylist, body: VideoPlaylistUpdate) { | |
158 | const data = objectToFormData(body) | |
159 | ||
160 | return this.authHttp.put(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylist.id, data) | |
161 | .pipe( | |
162 | map(this.restExtractor.extractDataBool), | |
163 | tap(() => { | |
164 | const playlist = this.myAccountPlaylistCache.data.find(p => p.id === videoPlaylist.id) | |
165 | playlist.displayName = body.displayName | |
166 | ||
167 | this.myAccountPlaylistCacheSubject.next(this.myAccountPlaylistCache) | |
168 | }), | |
169 | catchError(err => this.restExtractor.handleError(err)) | |
170 | ) | |
171 | } | |
172 | ||
173 | removeVideoPlaylist (videoPlaylist: VideoPlaylist) { | |
174 | return this.authHttp.delete(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylist.id) | |
175 | .pipe( | |
176 | map(this.restExtractor.extractDataBool), | |
177 | tap(() => { | |
178 | this.myAccountPlaylistCache.total-- | |
179 | this.myAccountPlaylistCache.data = this.myAccountPlaylistCache.data | |
180 | .filter(p => p.id !== videoPlaylist.id) | |
181 | ||
182 | this.myAccountPlaylistCacheSubject.next(this.myAccountPlaylistCache) | |
183 | }), | |
184 | catchError(err => this.restExtractor.handleError(err)) | |
185 | ) | |
186 | } | |
187 | ||
188 | addVideoInPlaylist (playlistId: number, body: VideoPlaylistElementCreate) { | |
189 | const url = VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos' | |
190 | ||
191 | return this.authHttp.post<{ videoPlaylistElement: { id: number } }>(url, body) | |
192 | .pipe( | |
193 | tap(res => { | |
194 | const existsResult = this.videoExistsCache[body.videoId] | |
195 | existsResult.push({ | |
196 | playlistId, | |
197 | playlistElementId: res.videoPlaylistElement.id, | |
198 | startTimestamp: body.startTimestamp, | |
199 | stopTimestamp: body.stopTimestamp | |
200 | }) | |
201 | ||
202 | this.runPlaylistCheck(body.videoId) | |
203 | }), | |
204 | catchError(err => this.restExtractor.handleError(err)) | |
205 | ) | |
206 | } | |
207 | ||
208 | updateVideoOfPlaylist (playlistId: number, playlistElementId: number, body: VideoPlaylistElementUpdate, videoId: number) { | |
209 | return this.authHttp.put(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/' + playlistElementId, body) | |
210 | .pipe( | |
211 | map(this.restExtractor.extractDataBool), | |
212 | tap(() => { | |
213 | const existsResult = this.videoExistsCache[videoId] | |
214 | const elem = existsResult.find(e => e.playlistElementId === playlistElementId) | |
215 | ||
216 | elem.startTimestamp = body.startTimestamp | |
217 | elem.stopTimestamp = body.stopTimestamp | |
218 | ||
219 | this.runPlaylistCheck(videoId) | |
220 | }), | |
221 | catchError(err => this.restExtractor.handleError(err)) | |
222 | ) | |
223 | } | |
224 | ||
225 | removeVideoFromPlaylist (playlistId: number, playlistElementId: number, videoId?: number) { | |
226 | return this.authHttp.delete(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/' + playlistElementId) | |
227 | .pipe( | |
228 | map(this.restExtractor.extractDataBool), | |
229 | tap(() => { | |
230 | if (!videoId) return | |
231 | ||
232 | this.videoExistsCache[videoId] = this.videoExistsCache[videoId].filter(e => e.playlistElementId !== playlistElementId) | |
233 | this.runPlaylistCheck(videoId) | |
234 | }), | |
235 | catchError(err => this.restExtractor.handleError(err)) | |
236 | ) | |
237 | } | |
238 | ||
239 | reorderPlaylist (playlistId: number, oldPosition: number, newPosition: number) { | |
240 | const body: VideoPlaylistReorder = { | |
241 | startPosition: oldPosition, | |
242 | insertAfterPosition: newPosition | |
243 | } | |
244 | ||
245 | return this.authHttp.post(VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + playlistId + '/videos/reorder', body) | |
246 | .pipe( | |
247 | map(this.restExtractor.extractDataBool), | |
248 | catchError(err => this.restExtractor.handleError(err)) | |
249 | ) | |
250 | } | |
251 | ||
252 | getPlaylistVideos ( | |
253 | videoPlaylistId: number | string, | |
254 | componentPagination: ComponentPaginationLight | |
255 | ): Observable<ResultList<VideoPlaylistElement>> { | |
256 | const path = VideoPlaylistService.BASE_VIDEO_PLAYLIST_URL + videoPlaylistId + '/videos' | |
257 | const pagination = this.restService.componentPaginationToRestPagination(componentPagination) | |
258 | ||
259 | let params = new HttpParams() | |
260 | params = this.restService.addRestGetParams(params, pagination) | |
261 | ||
262 | return this.authHttp | |
263 | .get<ResultList<ServerVideoPlaylistElement>>(path, { params }) | |
264 | .pipe( | |
265 | switchMap(res => this.extractVideoPlaylistElements(res)), | |
266 | catchError(err => this.restExtractor.handleError(err)) | |
267 | ) | |
268 | } | |
269 | ||
270 | listenToMyAccountPlaylistsChange () { | |
271 | return this.myAccountPlaylistCacheSubject.asObservable() | |
272 | } | |
273 | ||
274 | listenToVideoPlaylistChange (videoId: number) { | |
275 | if (this.videoExistsObservableCache[ videoId ]) { | |
276 | return this.videoExistsObservableCache[ videoId ] | |
277 | } | |
278 | ||
279 | const obs = this.videoExistsInPlaylistObservable | |
280 | .pipe( | |
281 | map(existsResult => existsResult[ videoId ]), | |
282 | filter(r => !!r), | |
283 | tap(result => this.videoExistsCache[ videoId ] = result) | |
284 | ) | |
285 | ||
286 | this.videoExistsObservableCache[ videoId ] = obs | |
287 | return obs | |
288 | } | |
289 | ||
290 | runPlaylistCheck (videoId: number) { | |
291 | logger('Running playlist check.') | |
292 | ||
293 | if (this.videoExistsCache[videoId]) { | |
294 | logger('Found cache for %d.', videoId) | |
295 | ||
296 | return this.videoExistsInPlaylistCacheSubject.next({ [videoId]: this.videoExistsCache[videoId] }) | |
297 | } | |
298 | ||
299 | logger('Fetching from network for %d.', videoId) | |
300 | return this.videoExistsInPlaylistNotifier.next(videoId) | |
301 | } | |
302 | ||
303 | extractPlaylists (result: ResultList<VideoPlaylistServerModel>) { | |
304 | return this.serverService.getServerLocale() | |
305 | .pipe( | |
306 | map(translations => { | |
307 | const playlistsJSON = result.data | |
308 | const total = result.total | |
309 | const playlists: VideoPlaylist[] = [] | |
310 | ||
311 | for (const playlistJSON of playlistsJSON) { | |
312 | playlists.push(new VideoPlaylist(playlistJSON, translations)) | |
313 | } | |
314 | ||
315 | return { data: playlists, total } | |
316 | }) | |
317 | ) | |
318 | } | |
319 | ||
320 | extractPlaylist (playlist: VideoPlaylistServerModel) { | |
321 | return this.serverService.getServerLocale() | |
322 | .pipe(map(translations => new VideoPlaylist(playlist, translations))) | |
323 | } | |
324 | ||
325 | extractVideoPlaylistElements (result: ResultList<ServerVideoPlaylistElement>) { | |
326 | return this.serverService.getServerLocale() | |
327 | .pipe( | |
328 | map(translations => { | |
329 | const elementsJson = result.data | |
330 | const total = result.total | |
331 | const elements: VideoPlaylistElement[] = [] | |
332 | ||
333 | for (const elementJson of elementsJson) { | |
334 | elements.push(new VideoPlaylistElement(elementJson, translations)) | |
335 | } | |
336 | ||
337 | return { total, data: elements } | |
338 | }) | |
339 | ) | |
340 | } | |
341 | ||
342 | private doVideosExistInPlaylist (videoIds: number[]): Observable<VideosExistInPlaylists> { | |
343 | const url = VideoPlaylistService.MY_VIDEO_PLAYLIST_URL + 'videos-exist' | |
344 | ||
345 | let params = new HttpParams() | |
346 | params = this.restService.addObjectParams(params, { videoIds }) | |
347 | ||
348 | return this.authHttp.get<VideoExistInPlaylist>(url, { params, headers: { ignoreLoadingBar: '' } }) | |
349 | .pipe(catchError(err => this.restExtractor.handleError(err))) | |
350 | } | |
351 | } |