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import { Component, EventEmitter, Input, Output } from '@angular/core'
import { Router } from '@angular/router'
import { AuthService, ComponentPagination, HooksService, Notifier, SessionStorageService, UserService } from '@app/core'
import { isInViewport } from '@app/helpers'
import { VideoPlaylist, VideoPlaylistElement, VideoPlaylistService } from '@app/shared/shared-video-playlist'
import { getBoolOrDefault } from '@root-helpers/local-storage-utils'
import { peertubeSessionStorage } from '@root-helpers/peertube-web-storage'
import { VideoPlaylistPrivacy } from '@shared/models'
@Component({
selector: 'my-video-watch-playlist',
templateUrl: './video-watch-playlist.component.html',
styleUrls: [ './video-watch-playlist.component.scss' ]
})
export class VideoWatchPlaylistComponent {
static SESSION_STORAGE_LOOP_PLAYLIST = 'loop_playlist'
@Input() playlist: VideoPlaylist
@Output() videoFound = new EventEmitter<string>()
@Output() noVideoFound = new EventEmitter<void>()
playlistElements: VideoPlaylistElement[] = []
playlistPagination: ComponentPagination = {
currentPage: 1,
itemsPerPage: 30,
totalItems: null
}
autoPlayNextVideoPlaylist: boolean
autoPlayNextVideoPlaylistSwitchText = ''
loopPlaylist: boolean
loopPlaylistSwitchText = ''
noPlaylistVideos = false
currentPlaylistPosition: number
constructor (
private hooks: HooksService,
private userService: UserService,
private auth: AuthService,
private notifier: Notifier,
private videoPlaylist: VideoPlaylistService,
private sessionStorage: SessionStorageService,
private router: Router
) {
this.userService.getAnonymousOrLoggedUser()
.subscribe(user => this.autoPlayNextVideoPlaylist = user.autoPlayNextVideoPlaylist)
this.setAutoPlayNextVideoPlaylistSwitchText()
this.loopPlaylist = getBoolOrDefault(this.sessionStorage.getItem(VideoWatchPlaylistComponent.SESSION_STORAGE_LOOP_PLAYLIST), false)
this.setLoopPlaylistSwitchText()
}
onPlaylistVideosNearOfBottom (position?: number) {
// Last page
if (this.playlistPagination.totalItems <= (this.playlistPagination.currentPage * this.playlistPagination.itemsPerPage)) return
this.playlistPagination.currentPage += 1
this.loadPlaylistElements(this.playlist, false, position)
}
onElementRemoved (playlistElement: VideoPlaylistElement) {
this.playlistElements = this.playlistElements.filter(e => e.id !== playlistElement.id)
this.playlistPagination.totalItems--
}
isPlaylistOwned () {
return this.playlist.isLocal === true &&
this.auth.isLoggedIn() &&
this.playlist.ownerAccount.name === this.auth.getUser().username
}
isUnlistedPlaylist () {
return this.playlist.privacy.id === VideoPlaylistPrivacy.UNLISTED
}
isPrivatePlaylist () {
return this.playlist.privacy.id === VideoPlaylistPrivacy.PRIVATE
}
isPublicPlaylist () {
return this.playlist.privacy.id === VideoPlaylistPrivacy.PUBLIC
}
loadPlaylistElements (playlist: VideoPlaylist, redirectToFirst = false, position?: number) {
const obs = this.hooks.wrapObsFun(
this.videoPlaylist.getPlaylistVideos.bind(this.videoPlaylist),
{ videoPlaylistId: playlist.uuid, componentPagination: this.playlistPagination },
'video-watch',
'filter:api.video-watch.video-playlist-elements.get.params',
'filter:api.video-watch.video-playlist-elements.get.result'
)
obs.subscribe(({ total, data: playlistElements }) => {
this.playlistElements = this.playlistElements.concat(playlistElements)
this.playlistPagination.totalItems = total
const firstAvailableVideo = this.playlistElements.find(e => !!e.video)
if (!firstAvailableVideo) {
this.noPlaylistVideos = true
this.noVideoFound.emit()
return
}
if (position) this.updatePlaylistIndex(position)
if (redirectToFirst) {
const extras = {
queryParams: {
start: firstAvailableVideo.startTimestamp,
stop: firstAvailableVideo.stopTimestamp,
playlistPosition: firstAvailableVideo.position
},
replaceUrl: true
}
this.router.navigate([], extras)
}
})
}
updatePlaylistIndex (position: number) {
if (this.playlistElements.length === 0 || !position) return
// Handle the reverse index
if (position < 0) position = this.playlist.videosLength + position + 1
for (const playlistElement of this.playlistElements) {
// >= if the previous videos were not valid
if (playlistElement.video && playlistElement.position >= position) {
this.currentPlaylistPosition = playlistElement.position
this.videoFound.emit(playlistElement.video.uuid)
setTimeout(() => {
const element = document.querySelector<HTMLElement>('.element-' + this.currentPlaylistPosition)
const container = document.querySelector<HTMLElement>('.playlist')
if (isInViewport(element, container)) return
container.scrollTop = element.offsetTop
})
return
}
}
// Load more videos to find our video
this.onPlaylistVideosNearOfBottom(position)
}
hasPreviousVideo () {
return !!this.findPlaylistVideo(this.currentPlaylistPosition - 1, 'previous')
}
hasNextVideo () {
return !!this.findPlaylistVideo(this.currentPlaylistPosition + 1, 'next')
}
navigateToPreviousPlaylistVideo () {
const previous = this.findPlaylistVideo(this.currentPlaylistPosition - 1, 'previous')
if (!previous) return
const start = previous.startTimestamp
const stop = previous.stopTimestamp
this.router.navigate([], { queryParams: { playlistPosition: previous.position, start, stop } })
}
findPlaylistVideo (position: number, type: 'previous' | 'next'): VideoPlaylistElement {
if (
(type === 'next' && position > this.playlistPagination.totalItems) ||
(type === 'previous' && position < 1)
) {
// End of the playlist: end the recursion if we're not in the loop mode
if (!this.loopPlaylist) return
// Loop mode
position = type === 'previous'
? this.playlistPagination.totalItems
: 1
}
const found = this.playlistElements.find(e => e.position === position)
if (found?.video) return found
const newPosition = type === 'previous'
? position - 1
: position + 1
return this.findPlaylistVideo(newPosition, type)
}
navigateToNextPlaylistVideo () {
const next = this.findPlaylistVideo(this.currentPlaylistPosition + 1, 'next')
if (!next) return
const start = next.startTimestamp
const stop = next.stopTimestamp
this.router.navigate([], { queryParams: { playlistPosition: next.position, start, stop } })
}
switchAutoPlayNextVideoPlaylist () {
this.autoPlayNextVideoPlaylist = !this.autoPlayNextVideoPlaylist
this.setAutoPlayNextVideoPlaylistSwitchText()
const details = { autoPlayNextVideoPlaylist: this.autoPlayNextVideoPlaylist }
if (this.auth.isLoggedIn()) {
this.userService.updateMyProfile(details)
.subscribe({
next: () => {
this.auth.refreshUserInformation()
},
error: err => this.notifier.error(err.message)
})
} else {
this.userService.updateMyAnonymousProfile(details)
}
}
switchLoopPlaylist () {
this.loopPlaylist = !this.loopPlaylist
this.setLoopPlaylistSwitchText()
peertubeSessionStorage.setItem(
VideoWatchPlaylistComponent.SESSION_STORAGE_LOOP_PLAYLIST,
this.loopPlaylist.toString()
)
}
private setAutoPlayNextVideoPlaylistSwitchText () {
this.autoPlayNextVideoPlaylistSwitchText = this.autoPlayNextVideoPlaylist
? $localize`Stop autoplaying next video`
: $localize`Autoplay next video`
}
private setLoopPlaylistSwitchText () {
this.loopPlaylistSwitchText = this.loopPlaylist
? $localize`Stop looping playlist videos`
: $localize`Loop playlist videos`
}
}
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