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

   1 import { debounceTime, first, tap } 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 { ComponentPagination } 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 { ResultList } from '@shared/models'
  17
  18 enum GroupDate {
  19   UNKNOWN = 0,
  20   TODAY = 1,
  21   YESTERDAY = 2,
  22   LAST_WEEK = 3,
  23   LAST_MONTH = 4,
  24   OLDER = 5
  25 }
  26
  27 export abstract class AbstractVideoList implements OnInit, OnDestroy, DisableForReuseHook {
  28   pagination: ComponentPagination = {
  29     currentPage: 1,
  30     itemsPerPage: 25,
  31     totalItems: null
  32   }
  33   sort: VideoSortField = '-publishedAt'
  34
  35   categoryOneOf?: number
  36   languageOneOf?: string[]
  37   defaultSort: VideoSortField = '-publishedAt'
  38
  39   syndicationItems: Syndication[] = []
  40
  41   loadOnInit = true
  42   useUserVideoLanguagePreferences = false
  43   ownerDisplayType: OwnerDisplayType = 'account'
  44   displayModerationBlock = false
  45   titleTooltip: string
  46   displayVideoActions = true
  47   groupByDate = false
  48
  49   videos: Video[] = []
  50   disabled = false
  51
  52   displayOptions: MiniatureDisplayOptions = {
  53     date: true,
  54     views: true,
  55     by: true,
  56     privacyLabel: true,
  57     privacyText: false,
  58     state: false,
  59     blacklistInfo: false
  60   }
  61
  62   onDataSubject = new Subject<any[]>()
  63
  64   protected abstract notifier: Notifier
  65   protected abstract authService: AuthService
  66   protected abstract route: ActivatedRoute
  67   protected abstract serverService: ServerService
  68   protected abstract screenService: ScreenService
  69   protected abstract router: Router
  70   protected abstract i18n: I18n
  71   abstract titlePage: string
  72
  73   private resizeSubscription: Subscription
  74   private angularState: number
  75
  76   private groupedDateLabels: { [id in GroupDate]: string }
  77   private groupedDates: { [id: number]: GroupDate } = {}
  78
  79   abstract getVideosObservable (page: number): Observable<ResultList<Video>>
  80
  81   abstract generateSyndicationList (): void
  82
  83   get user () {
  84     return this.authService.getUser()
  85   }
  86
  87   ngOnInit () {
  88     this.groupedDateLabels = {
  89       [GroupDate.UNKNOWN]: null,
  90       [GroupDate.TODAY]: this.i18n('Today'),
  91       [GroupDate.YESTERDAY]: this.i18n('Yesterday'),
  92       [GroupDate.LAST_WEEK]: this.i18n('Last week'),
  93       [GroupDate.LAST_MONTH]: this.i18n('Last month'),
  94       [GroupDate.OLDER]: this.i18n('Older')
  95     }
  96
  97     // Subscribe to route changes
  98     const routeParams = this.route.snapshot.queryParams
  99     this.loadRouteParams(routeParams)
 100
 101     this.resizeSubscription = fromEvent(window, 'resize')
 102       .pipe(debounceTime(500))
 103       .subscribe(() => this.calcPageSizes())
 104
 105     this.calcPageSizes()
 106
 107     const loadUserObservable = this.loadUserVideoLanguagesIfNeeded()
 108
 109     if (this.loadOnInit === true) {
 110       loadUserObservable.subscribe(() => this.loadMoreVideos())
 111     }
 112   }
 113
 114   ngOnDestroy () {
 115     if (this.resizeSubscription) this.resizeSubscription.unsubscribe()
 116   }
 117
 118   disableForReuse () {
 119     this.disabled = true
 120   }
 121
 122   enabledForReuse () {
 123     this.disabled = false
 124   }
 125
 126   videoById (index: number, video: Video) {
 127     return video.id
 128   }
 129
 130   onNearOfBottom () {
 131     if (this.disabled) return
 132
 133     // Last page
 134     if (this.pagination.totalItems <= (this.pagination.currentPage * this.pagination.itemsPerPage)) return
 135
 136     this.pagination.currentPage += 1
 137
 138     this.setScrollRouteParams()
 139
 140     this.loadMoreVideos()
 141   }
 142
 143   loadMoreVideos () {
 144     this.getVideosObservable(this.pagination.currentPage).subscribe(
 145       ({ data, total }) => {
 146         this.pagination.totalItems = total
 147         this.videos = this.videos.concat(data)
 148
 149         if (this.groupByDate) this.buildGroupedDateLabels()
 150
 151         this.onMoreVideos()
 152
 153         this.onDataSubject.next(data)
 154       },
 155
 156       error => this.notifier.error(error.message)
 157     )
 158   }
 159
 160   reloadVideos () {
 161     this.pagination.currentPage = 1
 162     this.videos = []
 163     this.loadMoreVideos()
 164   }
 165
 166   toggleModerationDisplay () {
 167     throw new Error('toggleModerationDisplay is not implemented')
 168   }
 169
 170   removeVideoFromArray (video: Video) {
 171     this.videos = this.videos.filter(v => v.id !== video.id)
 172   }
 173
 174   buildGroupedDateLabels () {
 175     let currentGroupedDate: GroupDate = GroupDate.UNKNOWN
 176
 177     for (const video of this.videos) {
 178       const publishedDate = video.publishedAt
 179
 180       if (currentGroupedDate <= GroupDate.TODAY && isToday(publishedDate)) {
 181         if (currentGroupedDate === GroupDate.TODAY) continue
 182
 183         currentGroupedDate = GroupDate.TODAY
 184         this.groupedDates[ video.id ] = currentGroupedDate
 185         continue
 186       }
 187
 188       if (currentGroupedDate <= GroupDate.YESTERDAY && isYesterday(publishedDate)) {
 189         if (currentGroupedDate === GroupDate.YESTERDAY) continue
 190
 191         currentGroupedDate = GroupDate.YESTERDAY
 192         this.groupedDates[ video.id ] = currentGroupedDate
 193         continue
 194       }
 195
 196       if (currentGroupedDate <= GroupDate.LAST_WEEK && isLastWeek(publishedDate)) {
 197         if (currentGroupedDate === GroupDate.LAST_WEEK) continue
 198
 199         currentGroupedDate = GroupDate.LAST_WEEK
 200         this.groupedDates[ video.id ] = currentGroupedDate
 201         continue
 202       }
 203
 204       if (currentGroupedDate <= GroupDate.LAST_MONTH && isLastMonth(publishedDate)) {
 205         if (currentGroupedDate === GroupDate.LAST_MONTH) continue
 206
 207         currentGroupedDate = GroupDate.LAST_MONTH
 208         this.groupedDates[ video.id ] = currentGroupedDate
 209         continue
 210       }
 211
 212       if (currentGroupedDate <= GroupDate.OLDER) {
 213         if (currentGroupedDate === GroupDate.OLDER) continue
 214
 215         currentGroupedDate = GroupDate.OLDER
 216         this.groupedDates[ video.id ] = currentGroupedDate
 217       }
 218     }
 219   }
 220
 221   getCurrentGroupedDateLabel (video: Video) {
 222     if (this.groupByDate === false) return undefined
 223
 224     return this.groupedDateLabels[this.groupedDates[video.id]]
 225   }
 226
 227   // On videos hook for children that want to do something
 228   protected onMoreVideos () { /* empty */ }
 229
 230   protected loadRouteParams (routeParams: { [ key: string ]: any }) {
 231     this.sort = routeParams[ 'sort' ] as VideoSortField || this.defaultSort
 232     this.categoryOneOf = routeParams[ 'categoryOneOf' ]
 233     this.angularState = routeParams[ 'a-state' ]
 234   }
 235
 236   private calcPageSizes () {
 237     if (this.screenService.isInMobileView()) {
 238       this.pagination.itemsPerPage = 5
 239     }
 240   }
 241
 242   private setScrollRouteParams () {
 243     // Already set
 244     if (this.angularState) return
 245
 246     this.angularState = 42
 247
 248     const queryParams = {
 249       'a-state': this.angularState,
 250       categoryOneOf: this.categoryOneOf
 251     }
 252
 253     let path = this.router.url
 254     if (!path || path === '/') path = this.serverService.getConfig().instance.defaultClientRoute
 255
 256     this.router.navigate([ path ], { queryParams, replaceUrl: true, queryParamsHandling: 'merge' })
 257   }
 258
 259   private loadUserVideoLanguagesIfNeeded () {
 260     if (!this.authService.isLoggedIn() || !this.useUserVideoLanguagePreferences) {
 261       return of(true)
 262     }
 263
 264     return this.authService.userInformationLoaded
 265         .pipe(
 266           first(),
 267           tap(() => this.languageOneOf = this.user.videoLanguages)
 268         )
 269   }
 270 }