client/src/app/shared/video/abstract-video-list.ts

   1 import { debounceTime, first, tap, throttleTime } from 'rxjs/operators'
   2 import { OnDestroy, OnInit } from '@angular/core'
   3 import { ActivatedRoute, Router } from '@angular/router'
   4 import { fromEvent, Observable, of, Subject, Subscription } from 'rxjs'
   5 import { AuthService } from '../../core/auth'
   6 import { ComponentPaginationLight } from '../rest/component-pagination.model'
   7 import { VideoSortField } from './sort-field.type'
   8 import { Video } from './video.model'
   9 import { ScreenService } from '@app/shared/misc/screen.service'
  10 import { MiniatureDisplayOptions, OwnerDisplayType } from '@app/shared/video/video-miniature.component'
  11 import { Syndication } from '@app/shared/video/syndication.model'
  12 import { Notifier, ServerService } from '@app/core'
  13 import { DisableForReuseHook } from '@app/core/routing/disable-for-reuse-hook'
  14 import { I18n } from '@ngx-translate/i18n-polyfill'
  15 import { isLastMonth, isLastWeek, isToday, isYesterday } from '@shared/core-utils/miscs/date'
  16 import { ServerConfig } from '@shared/models'
  17 import { GlobalIconName } from '@app/shared/images/global-icon.component'
  18 import { UserService, User } from '../users'
  19 import { LocalStorageService } from '../misc/storage.service'
  20
  21 enum GroupDate {
  22   UNKNOWN = 0,
  23   TODAY = 1,
  24   YESTERDAY = 2,
  25   LAST_WEEK = 3,
  26   LAST_MONTH = 4,
  27   OLDER = 5
  28 }
  29
  30 export abstract class AbstractVideoList implements OnInit, OnDestroy, DisableForReuseHook {
  31   pagination: ComponentPaginationLight = {
  32     currentPage: 1,
  33     itemsPerPage: 25
  34   }
  35   sort: VideoSortField = '-publishedAt'
  36
  37   categoryOneOf?: number
  38   languageOneOf?: string[]
  39   defaultSort: VideoSortField = '-publishedAt'
  40
  41   syndicationItems: Syndication[] = []
  42
  43   loadOnInit = true
  44   useUserVideoLanguagePreferences = false
  45   ownerDisplayType: OwnerDisplayType = 'account'
  46   displayModerationBlock = false
  47   titleTooltip: string
  48   displayVideoActions = true
  49   groupByDate = false
  50
  51   videos: Video[] = []
  52   hasDoneFirstQuery = false
  53   disabled = false
  54
  55   displayOptions: MiniatureDisplayOptions = {
  56     date: true,
  57     views: true,
  58     by: true,
  59     privacyLabel: true,
  60     privacyText: false,
  61     state: false,
  62     blacklistInfo: false
  63   }
  64
  65   actions: {
  66     routerLink: string
  67     iconName: GlobalIconName
  68     label: string
  69   }[] = []
  70
  71   onDataSubject = new Subject<any[]>()
  72
  73   protected serverConfig: ServerConfig
  74
  75   protected abstract notifier: Notifier
  76   protected abstract authService: AuthService
  77   protected abstract userService: UserService
  78   protected abstract route: ActivatedRoute
  79   protected abstract serverService: ServerService
  80   protected abstract screenService: ScreenService
  81   protected abstract storageService: LocalStorageService
  82   protected abstract router: Router
  83   protected abstract i18n: I18n
  84   abstract titlePage: string
  85
  86   private resizeSubscription: Subscription
  87   private angularState: number
  88
  89   private groupedDateLabels: { [id in GroupDate]: string }
  90   private groupedDates: { [id: number]: GroupDate } = {}
  91
  92   private lastQueryLength: number
  93
  94   abstract getVideosObservable (page: number): Observable<{ data: Video[] }>
  95
  96   abstract generateSyndicationList (): void
  97
  98   get user () {
  99     return this.authService.getUser()
 100   }
 101
 102   ngOnInit () {
 103     this.serverConfig = this.serverService.getTmpConfig()
 104     this.serverService.getConfig()
 105       .subscribe(config => this.serverConfig = config)
 106
 107     this.groupedDateLabels = {
 108       [GroupDate.UNKNOWN]: null,
 109       [GroupDate.TODAY]: this.i18n('Today'),
 110       [GroupDate.YESTERDAY]: this.i18n('Yesterday'),
 111       [GroupDate.LAST_WEEK]: this.i18n('Last week'),
 112       [GroupDate.LAST_MONTH]: this.i18n('Last month'),
 113       [GroupDate.OLDER]: this.i18n('Older')
 114     }
 115
 116     // Subscribe to route changes
 117     const routeParams = this.route.snapshot.queryParams
 118     this.loadRouteParams(routeParams)
 119
 120     this.resizeSubscription = fromEvent(window, 'resize')
 121       .pipe(debounceTime(500))
 122       .subscribe(() => this.calcPageSizes())
 123
 124     this.calcPageSizes()
 125
 126     const loadUserObservable = this.loadUserVideoLanguagesIfNeeded()
 127
 128     if (this.loadOnInit === true) {
 129       loadUserObservable.subscribe(() => this.loadMoreVideos())
 130     }
 131
 132     this.storageService.watch([
 133       User.KEYS.NSFW_POLICY,
 134       User.KEYS.VIDEO_LANGUAGES
 135     ]).pipe(throttleTime(200)).subscribe(
 136       () => {
 137         this.loadUserVideoLanguagesIfNeeded()
 138         if (this.hasDoneFirstQuery) this.reloadVideos()
 139       }
 140     )
 141   }
 142
 143   ngOnDestroy () {
 144     if (this.resizeSubscription) this.resizeSubscription.unsubscribe()
 145   }
 146
 147   disableForReuse () {
 148     this.disabled = true
 149   }
 150
 151   enabledForReuse () {
 152     this.disabled = false
 153   }
 154
 155   videoById (index: number, video: Video) {
 156     return video.id
 157   }
 158
 159   onNearOfBottom () {
 160     if (this.disabled) return
 161
 162     // No more results
 163     if (this.lastQueryLength !== undefined && this.lastQueryLength < this.pagination.itemsPerPage) return
 164
 165     this.pagination.currentPage += 1
 166
 167     this.setScrollRouteParams()
 168
 169     this.loadMoreVideos()
 170   }
 171
 172   loadMoreVideos (reset = false) {
 173     this.getVideosObservable(this.pagination.currentPage).subscribe(
 174       ({ data }) => {
 175         this.hasDoneFirstQuery = true
 176         this.lastQueryLength = data.length
 177
 178         if (reset) this.videos = []
 179         this.videos = this.videos.concat(data)
 180
 181         if (this.groupByDate) this.buildGroupedDateLabels()
 182
 183         this.onMoreVideos()
 184
 185         this.onDataSubject.next(data)
 186       },
 187
 188       error => {
 189         const message = this.i18n('Cannot load more videos. Try again later.')
 190
 191         console.error(message, { error })
 192         this.notifier.error(message)
 193       }
 194     )
 195   }
 196
 197   reloadVideos () {
 198     this.pagination.currentPage = 1
 199     this.loadMoreVideos(true)
 200   }
 201
 202   toggleModerationDisplay () {
 203     throw new Error('toggleModerationDisplay is not implemented')
 204   }
 205
 206   removeVideoFromArray (video: Video) {
 207     this.videos = this.videos.filter(v => v.id !== video.id)
 208   }
 209
 210   buildGroupedDateLabels () {
 211     let currentGroupedDate: GroupDate = GroupDate.UNKNOWN
 212
 213     for (const video of this.videos) {
 214       const publishedDate = video.publishedAt
 215
 216       if (currentGroupedDate <= GroupDate.TODAY && isToday(publishedDate)) {
 217         if (currentGroupedDate === GroupDate.TODAY) continue
 218
 219         currentGroupedDate = GroupDate.TODAY
 220         this.groupedDates[ video.id ] = currentGroupedDate
 221         continue
 222       }
 223
 224       if (currentGroupedDate <= GroupDate.YESTERDAY && isYesterday(publishedDate)) {
 225         if (currentGroupedDate === GroupDate.YESTERDAY) continue
 226
 227         currentGroupedDate = GroupDate.YESTERDAY
 228         this.groupedDates[ video.id ] = currentGroupedDate
 229         continue
 230       }
 231
 232       if (currentGroupedDate <= GroupDate.LAST_WEEK && isLastWeek(publishedDate)) {
 233         if (currentGroupedDate === GroupDate.LAST_WEEK) continue
 234
 235         currentGroupedDate = GroupDate.LAST_WEEK
 236         this.groupedDates[ video.id ] = currentGroupedDate
 237         continue
 238       }
 239
 240       if (currentGroupedDate <= GroupDate.LAST_MONTH && isLastMonth(publishedDate)) {
 241         if (currentGroupedDate === GroupDate.LAST_MONTH) continue
 242
 243         currentGroupedDate = GroupDate.LAST_MONTH
 244         this.groupedDates[ video.id ] = currentGroupedDate
 245         continue
 246       }
 247
 248       if (currentGroupedDate <= GroupDate.OLDER) {
 249         if (currentGroupedDate === GroupDate.OLDER) continue
 250
 251         currentGroupedDate = GroupDate.OLDER
 252         this.groupedDates[ video.id ] = currentGroupedDate
 253       }
 254     }
 255   }
 256
 257   getCurrentGroupedDateLabel (video: Video) {
 258     if (this.groupByDate === false) return undefined
 259
 260     return this.groupedDateLabels[this.groupedDates[video.id]]
 261   }
 262
 263   // On videos hook for children that want to do something
 264   protected onMoreVideos () { /* empty */ }
 265
 266   protected loadRouteParams (routeParams: { [ key: string ]: any }) {
 267     this.sort = routeParams[ 'sort' ] as VideoSortField || this.defaultSort
 268     this.categoryOneOf = routeParams[ 'categoryOneOf' ]
 269     this.angularState = routeParams[ 'a-state' ]
 270   }
 271
 272   private calcPageSizes () {
 273     if (this.screenService.isInMobileView()) {
 274       this.pagination.itemsPerPage = 5
 275     }
 276   }
 277
 278   private setScrollRouteParams () {
 279     // Already set
 280     if (this.angularState) return
 281
 282     this.angularState = 42
 283
 284     const queryParams = {
 285       'a-state': this.angularState,
 286       categoryOneOf: this.categoryOneOf
 287     }
 288
 289     let path = this.router.url
 290     if (!path || path === '/') path = this.serverConfig.instance.defaultClientRoute
 291
 292     this.router.navigate([ path ], { queryParams, replaceUrl: true, queryParamsHandling: 'merge' })
 293   }
 294
 295   private loadUserVideoLanguagesIfNeeded () {
 296     if (!this.useUserVideoLanguagePreferences) {
 297       return of(true)
 298     }
 299
 300     if (!this.authService.isLoggedIn()) {
 301       this.languageOneOf = this.userService.getAnonymousUser().videoLanguages
 302       return of(true)
 303     }
 304
 305     return this.authService.userInformationLoaded
 306         .pipe(
 307           first(),
 308           tap(() => this.languageOneOf = this.user.videoLanguages)
 309         )
 310   }
 311 }