]> git.immae.eu Git - github/Chocobozzz/PeerTube.git/blobdiff - client/src/standalone/videos/embed.ts
Handle playlist oembed
[github/Chocobozzz/PeerTube.git] / client / src / standalone / videos / embed.ts
index bf0eb484ee70a3397954e74f8971fc88d07e84a9..8d1720f7565f5775663d91924dfa248f99ea3f24 100644 (file)
 import './embed.scss'
+import videojs from 'video.js'
+import { objectToUrlEncoded, peertubeLocalStorage } from '@root-helpers/index'
+import { Tokens } from '@root-helpers/users'
+import { peertubeTranslate } from '../../../../shared/core-utils/i18n'
+import {
+  ResultList,
+  ServerConfig,
+  UserRefreshToken,
+  VideoCaption,
+  VideoDetails,
+  VideoPlaylist,
+  VideoPlaylistElement,
+  VideoStreamingPlaylistType
+} from '../../../../shared/models'
+import { P2PMediaLoaderOptions, PeertubePlayerManagerOptions, PlayerMode } from '../../assets/player/peertube-player-manager'
+import { VideoJSCaption } from '../../assets/player/peertube-videojs-typings'
+import { TranslationsManager } from '../../assets/player/translations-manager'
+import { PeerTubeEmbedApi } from './embed-api'
 
-import 'core-js/es6/symbol'
-import 'core-js/es6/object'
-import 'core-js/es6/function'
-import 'core-js/es6/parse-int'
-import 'core-js/es6/parse-float'
-import 'core-js/es6/number'
-import 'core-js/es6/math'
-import 'core-js/es6/string'
-import 'core-js/es6/date'
-import 'core-js/es6/array'
-import 'core-js/es6/regexp'
-import 'core-js/es6/map'
-import 'core-js/es6/weak-map'
-import 'core-js/es6/set'
-// For google bot that uses Chrome 41 and does not understand fetch
-import 'whatwg-fetch'
-
-import * as videojs from 'video.js'
-
-import { VideoDetails } from '../../../../shared'
-import { addContextMenu, getVideojsOptions, loadLocale } from '../../assets/player/peertube-player'
-
-function getVideoUrl (id: string) {
-  return window.location.origin + '/api/v1/videos/' + id
-}
+type Translations = { [ id: string ]: string }
 
-function loadVideoInfo (videoId: string): Promise<Response> {
-  return fetch(getVideoUrl(videoId))
-}
+export class PeerTubeEmbed {
+  playerElement: HTMLVideoElement
+  player: videojs.Player
+  api: PeerTubeEmbedApi = null
 
-function removeElement (element: HTMLElement) {
-  element.parentElement.removeChild(element)
-}
+  autoplay: boolean
+  controls: boolean
+  muted: boolean
+  loop: boolean
+  subtitle: string
+  enableApi = false
+  startTime: number | string = 0
+  stopTime: number | string
 
-function displayError (videoElement: HTMLVideoElement, text: string) {
-  // Remove video element
-  removeElement(videoElement)
+  title: boolean
+  warningTitle: boolean
+  peertubeLink: boolean
+  bigPlayBackgroundColor: string
+  foregroundColor: string
 
-  document.title = 'Sorry - ' + text
+  mode: PlayerMode
+  scope = 'peertube'
 
-  const errorBlock = document.getElementById('error-block')
-  errorBlock.style.display = 'flex'
+  userTokens: Tokens
+  headers = new Headers()
+  LOCAL_STORAGE_OAUTH_CLIENT_KEYS = {
+    CLIENT_ID: 'client_id',
+    CLIENT_SECRET: 'client_secret'
+  }
 
-  const errorText = document.getElementById('error-content')
-  errorText.innerHTML = text
-}
+  private translationsPromise: Promise<{ [id: string]: string }>
+  private configPromise: Promise<ServerConfig>
+  private PeertubePlayerManagerModulePromise: Promise<any>
 
-function videoNotFound (videoElement: HTMLVideoElement) {
-  const text = 'This video does not exist.'
-  displayError(videoElement, text)
-}
+  private playlist: VideoPlaylist
+  private playlistElements: VideoPlaylistElement[]
+  private currentPlaylistElement: VideoPlaylistElement
 
-function videoFetchError (videoElement: HTMLVideoElement) {
-  const text = 'We cannot fetch the video. Please try again later.'
-  displayError(videoElement, text)
-}
+  private wrapperElement: HTMLElement
+
+  static async main () {
+    const videoContainerId = 'video-wrapper'
+    const embed = new PeerTubeEmbed(videoContainerId)
+    await embed.init()
+  }
+
+  constructor (private videoWrapperId: string) {
+    this.wrapperElement = document.getElementById(this.videoWrapperId)
+  }
+
+  getVideoUrl (id: string) {
+    return window.location.origin + '/api/v1/videos/' + id
+  }
+
+  refreshFetch (url: string, options?: Object) {
+    return fetch(url, options)
+      .then((res: Response) => {
+        if (res.status !== 401) return res
+
+        // 401 unauthorized is not catch-ed, but then-ed
+        const error = res
+
+        const refreshingTokenPromise = new Promise((resolve, reject) => {
+          const clientId: string = peertubeLocalStorage.getItem(this.LOCAL_STORAGE_OAUTH_CLIENT_KEYS.CLIENT_ID)
+          const clientSecret: string = peertubeLocalStorage.getItem(this.LOCAL_STORAGE_OAUTH_CLIENT_KEYS.CLIENT_SECRET)
+          const headers = new Headers()
+          headers.set('Content-Type', 'application/x-www-form-urlencoded')
+          const data = {
+            refresh_token: this.userTokens.refreshToken,
+            client_id: clientId,
+            client_secret: clientSecret,
+            response_type: 'code',
+            grant_type: 'refresh_token'
+          }
+
+          fetch('/api/v1/users/token', {
+            headers,
+            method: 'POST',
+            body: objectToUrlEncoded(data)
+          })
+            .then(res => res.json())
+            .then((obj: UserRefreshToken) => {
+              this.userTokens.accessToken = obj.access_token
+              this.userTokens.refreshToken = obj.refresh_token
+              this.userTokens.save()
+
+              this.setHeadersFromTokens()
+
+              resolve()
+            })
+            .catch((refreshTokenError: any) => {
+              reject(refreshTokenError)
+            })
+        })
+
+        return refreshingTokenPromise
+          .catch(() => {
+            // If refreshing fails, continue with original error
+            throw error
+          })
+          .then(() => fetch(url, {
+            ...options,
+            headers: this.headers
+          }))
+      })
+  }
+
+  getPlaylistUrl (id: string) {
+    return window.location.origin + '/api/v1/video-playlists/' + id
+  }
+
+  loadVideoInfo (videoId: string): Promise<Response> {
+    return this.refreshFetch(this.getVideoUrl(videoId), { headers: this.headers })
+  }
+
+  loadVideoCaptions (videoId: string): Promise<Response> {
+    return fetch(this.getVideoUrl(videoId) + '/captions')
+  }
+
+  loadPlaylistInfo (playlistId: string): Promise<Response> {
+    return fetch(this.getPlaylistUrl(playlistId))
+  }
+
+  loadPlaylistElements (playlistId: string, start = 0): Promise<Response> {
+    const url = new URL(this.getPlaylistUrl(playlistId) + '/videos')
+    url.search = new URLSearchParams({ start: '' + start, count: '100' }).toString()
+
+    return fetch(url.toString())
+  }
+
+  loadConfig (): Promise<ServerConfig> {
+    return fetch('/api/v1/config')
+      .then(res => res.json())
+  }
+
+  removeElement (element: HTMLElement) {
+    element.parentElement.removeChild(element)
+  }
+
+  displayError (text: string, translations?: Translations) {
+    // Remove video element
+    if (this.playerElement) {
+      this.removeElement(this.playerElement)
+      this.playerElement = undefined
+    }
+
+    const translatedText = peertubeTranslate(text, translations)
+    const translatedSorry = peertubeTranslate('Sorry', translations)
+
+    document.title = translatedSorry + ' - ' + translatedText
+
+    const errorBlock = document.getElementById('error-block')
+    errorBlock.style.display = 'flex'
+
+    const errorTitle = document.getElementById('error-title')
+    errorTitle.innerHTML = peertubeTranslate('Sorry', translations)
+
+    const errorText = document.getElementById('error-content')
+    errorText.innerHTML = translatedText
+
+    this.wrapperElement.style.display = 'none'
+  }
+
+  videoNotFound (translations?: Translations) {
+    const text = 'This video does not exist.'
+    this.displayError(text, translations)
+  }
+
+  videoFetchError (translations?: Translations) {
+    const text = 'We cannot fetch the video. Please try again later.'
+    this.displayError(text, translations)
+  }
+
+  playlistNotFound (translations?: Translations) {
+    const text = 'This playlist does not exist.'
+    this.displayError(text, translations)
+  }
+
+  playlistFetchError (translations?: Translations) {
+    const text = 'We cannot fetch the playlist. Please try again later.'
+    this.displayError(text, translations)
+  }
+
+  getParamToggle (params: URLSearchParams, name: string, defaultValue?: boolean) {
+    return params.has(name) ? (params.get(name) === '1' || params.get(name) === 'true') : defaultValue
+  }
+
+  getParamString (params: URLSearchParams, name: string, defaultValue?: string) {
+    return params.has(name) ? params.get(name) : defaultValue
+  }
+
+  async playNextVideo () {
+    const next = this.getNextPlaylistElement()
+    if (!next) {
+      console.log('Next element not found in playlist.')
+      return
+    }
+
+    this.currentPlaylistElement = next
+
+    return this.loadVideoAndBuildPlayer(this.currentPlaylistElement.video.uuid)
+  }
 
-const urlParts = window.location.href.split('/')
-const lastPart = urlParts[urlParts.length - 1]
-const videoId = lastPart.indexOf('?') === -1 ? lastPart : lastPart.split('?')[0]
+  async playPreviousVideo () {
+    const previous = this.getPreviousPlaylistElement()
+    if (!previous) {
+      console.log('Previous element not found in playlist.')
+      return
+    }
+
+    this.currentPlaylistElement = previous
+
+    await this.loadVideoAndBuildPlayer(this.currentPlaylistElement.video.uuid)
+  }
 
-loadLocale(window.location.origin, videojs, navigator.language)
-  .then(() => loadVideoInfo(videoId))
-  .then(async response => {
-    const videoContainerId = 'video-container'
-    const videoElement = document.getElementById(videoContainerId) as HTMLVideoElement
+  getCurrentPosition () {
+    if (!this.currentPlaylistElement) return -1
 
-    if (!response.ok) {
-      if (response.status === 404) return videoNotFound(videoElement)
+    return this.currentPlaylistElement.position
+  }
 
-      return videoFetchError(videoElement)
+  async init () {
+    try {
+      this.userTokens = Tokens.load()
+      await this.initCore()
+    } catch (e) {
+      console.error(e)
     }
+  }
 
-    const videoInfo: VideoDetails = await response.json()
+  private initializeApi () {
+    if (!this.enableApi) return
 
-    let autoplay = false
-    let startTime = 0
+    this.api = new PeerTubeEmbedApi(this)
+    this.api.initialize()
+  }
 
+  private loadParams (video: VideoDetails) {
     try {
-      let params = new URL(window.location.toString()).searchParams
-      autoplay = params.has('autoplay') && (params.get('autoplay') === '1' || params.get('autoplay') === 'true')
+      const params = new URL(window.location.toString()).searchParams
+
+      this.autoplay = this.getParamToggle(params, 'autoplay', false)
+      this.controls = this.getParamToggle(params, 'controls', true)
+      this.muted = this.getParamToggle(params, 'muted', undefined)
+      this.loop = this.getParamToggle(params, 'loop', false)
+      this.title = this.getParamToggle(params, 'title', true)
+      this.enableApi = this.getParamToggle(params, 'api', this.enableApi)
+      this.warningTitle = this.getParamToggle(params, 'warningTitle', true)
+      this.peertubeLink = this.getParamToggle(params, 'peertubeLink', true)
+
+      this.scope = this.getParamString(params, 'scope', this.scope)
+      this.subtitle = this.getParamString(params, 'subtitle')
+      this.startTime = this.getParamString(params, 'start')
+      this.stopTime = this.getParamString(params, 'stop')
 
-      const startTimeParamString = params.get('start')
-      const startTimeParamNumber = parseInt(startTimeParamString, 10)
-      if (isNaN(startTimeParamNumber) === false) startTime = startTimeParamNumber
+      this.bigPlayBackgroundColor = this.getParamString(params, 'bigPlayBackgroundColor')
+      this.foregroundColor = this.getParamString(params, 'foregroundColor')
+
+      const modeParam = this.getParamString(params, 'mode')
+
+      if (modeParam) {
+        if (modeParam === 'p2p-media-loader') this.mode = 'p2p-media-loader'
+        else this.mode = 'webtorrent'
+      } else {
+        if (Array.isArray(video.streamingPlaylists) && video.streamingPlaylists.length !== 0) this.mode = 'p2p-media-loader'
+        else this.mode = 'webtorrent'
+      }
     } catch (err) {
       console.error('Cannot get params from URL.', err)
     }
+  }
+
+  private async loadAllPlaylistVideos (playlistId: string, baseResult: ResultList<VideoPlaylistElement>) {
+    let elements = baseResult.data
+    let total = baseResult.total
+    let i = 0
+
+    while (total > elements.length && i < 10) {
+      const result = await this.loadPlaylistElements(playlistId, elements.length)
+
+      const json = await result.json() as ResultList<VideoPlaylistElement>
+      total = json.total
+
+      elements = elements.concat(json.data)
+      i++
+    }
+
+    if (i === 10) {
+      console.error('Cannot fetch all playlists elements, there are too many!')
+    }
+
+    return elements
+  }
+
+  private async loadPlaylist (playlistId: string) {
+    const playlistPromise = this.loadPlaylistInfo(playlistId)
+    const playlistElementsPromise = this.loadPlaylistElements(playlistId)
+
+    const playlistResponse = await playlistPromise
+
+    if (!playlistResponse.ok) {
+      const serverTranslations = await this.translationsPromise
+
+      if (playlistResponse.status === 404) {
+        this.playlistNotFound(serverTranslations)
+        return undefined
+      }
+
+      this.playlistFetchError(serverTranslations)
+      return undefined
+    }
 
-    const videojsOptions = getVideojsOptions({
-      autoplay,
-      inactivityTimeout: 1500,
-      videoViewUrl: getVideoUrl(videoId) + '/views',
-      playerElement: videoElement,
-      videoFiles: videoInfo.files,
-      videoDuration: videoInfo.duration,
-      enableHotkeys: true,
-      peertubeLink: true,
-      poster: window.location.origin + videoInfo.previewPath,
-      startTime,
-      theaterMode: false
+    return { playlistResponse, videosResponse: await playlistElementsPromise }
+  }
+
+  private async loadVideo (videoId: string) {
+    const videoPromise = this.loadVideoInfo(videoId)
+
+    const videoResponse = await videoPromise
+
+    if (!videoResponse.ok) {
+      const serverTranslations = await this.translationsPromise
+
+      if (videoResponse.status === 404) {
+        this.videoNotFound(serverTranslations)
+        return undefined
+      }
+
+      this.videoFetchError(serverTranslations)
+      return undefined
+    }
+
+    const captionsPromise = this.loadVideoCaptions(videoId)
+
+    return { captionsPromise, videoResponse }
+  }
+
+  private async buildPlaylistManager () {
+    const translations = await this.translationsPromise
+
+    this.player.upnext({
+      timeout: 10000, // 10s
+      headText: peertubeTranslate('Up Next', translations),
+      cancelText: peertubeTranslate('Cancel', translations),
+      suspendedText: peertubeTranslate('Autoplay is suspended', translations),
+      getTitle: () => this.nextVideoTitle(),
+      next: () => this.playNextVideo(),
+      condition: () => !!this.getNextPlaylistElement(),
+      suspended: () => false
     })
-    videojs(videoContainerId, videojsOptions, function () {
-      const player = this
+  }
+
+  private async loadVideoAndBuildPlayer (uuid: string) {
+    const res = await this.loadVideo(uuid)
+    if (res === undefined) return
+
+    return this.buildVideoPlayer(res.videoResponse, res.captionsPromise)
+  }
+
+  private nextVideoTitle () {
+    const next = this.getNextPlaylistElement()
+    if (!next) return ''
+
+    return next.video.name
+  }
+
+  private getNextPlaylistElement (position?: number): VideoPlaylistElement {
+    if (!position) position = this.currentPlaylistElement.position + 1
+
+    if (position > this.playlist.videosLength) {
+      return undefined
+    }
+
+    const next = this.playlistElements.find(e => e.position === position)
+
+    if (!next || !next.video) {
+      return this.getNextPlaylistElement(position + 1)
+    }
+
+    return next
+  }
 
-      player.dock({
-        title: videoInfo.name,
-        description: player.localize('Uses P2P, others may know you are watching this video.')
+  private getPreviousPlaylistElement (position?: number): VideoPlaylistElement {
+    if (!position) position = this.currentPlaylistElement.position - 1
+
+    if (position < 1) {
+      return undefined
+    }
+
+    const prev = this.playlistElements.find(e => e.position === position)
+
+    if (!prev || !prev.video) {
+      return this.getNextPlaylistElement(position - 1)
+    }
+
+    return prev
+  }
+
+  private async buildVideoPlayer (videoResponse: Response, captionsPromise: Promise<Response>) {
+    let alreadyHadPlayer = false
+
+    if (this.player) {
+      this.player.dispose()
+      alreadyHadPlayer = true
+    }
+
+    this.playerElement = document.createElement('video')
+    this.playerElement.className = 'video-js vjs-peertube-skin'
+    this.playerElement.setAttribute('playsinline', 'true')
+    this.wrapperElement.appendChild(this.playerElement)
+
+    const videoInfoPromise = videoResponse.json()
+      .then((videoInfo: VideoDetails) => {
+        if (!alreadyHadPlayer) this.loadPlaceholder(videoInfo)
+
+        return videoInfo
       })
 
-      addContextMenu(player, window.location.origin + videoInfo.embedPath)
+    const [ videoInfoTmp, serverTranslations, captionsResponse, config, PeertubePlayerManagerModule ] = await Promise.all([
+      videoInfoPromise,
+      this.translationsPromise,
+      captionsPromise,
+      this.configPromise,
+      this.PeertubePlayerManagerModulePromise
+    ])
+
+    const videoInfo: VideoDetails = videoInfoTmp
+
+    const PeertubePlayerManager = PeertubePlayerManagerModule.PeertubePlayerManager
+    const videoCaptions = await this.buildCaptions(serverTranslations, captionsResponse)
+
+    this.loadParams(videoInfo)
+
+    const playlistPlugin = this.currentPlaylistElement
+      ? {
+        elements: this.playlistElements,
+        playlist: this.playlist,
+
+        getCurrentPosition: () => this.currentPlaylistElement.position,
+
+        onItemClicked: (videoPlaylistElement: VideoPlaylistElement) => {
+          this.currentPlaylistElement = videoPlaylistElement
+
+          this.loadVideoAndBuildPlayer(this.currentPlaylistElement.video.uuid)
+            .catch(err => console.error(err))
+        }
+      }
+      : undefined
+
+    const options: PeertubePlayerManagerOptions = {
+      common: {
+        // Autoplay in playlist mode
+        autoplay: alreadyHadPlayer ? true : this.autoplay,
+        controls: this.controls,
+        muted: this.muted,
+        loop: this.loop,
+
+        captions: videoCaptions.length !== 0,
+        subtitle: this.subtitle,
+
+        startTime: this.playlist ? this.currentPlaylistElement.startTimestamp : this.startTime,
+        stopTime: this.playlist ? this.currentPlaylistElement.stopTimestamp : this.stopTime,
+
+        nextVideo: this.playlist ? () => this.playNextVideo() : undefined,
+        hasNextVideo: this.playlist ? () => !!this.getNextPlaylistElement() : undefined,
+
+        previousVideo: this.playlist ? () => this.playPreviousVideo() : undefined,
+        hasPreviousVideo: this.playlist ? () => !!this.getPreviousPlaylistElement() : undefined,
+
+        playlist: playlistPlugin,
+
+        videoCaptions,
+        inactivityTimeout: 2500,
+        videoViewUrl: this.getVideoUrl(videoInfo.uuid) + '/views',
+
+        playerElement: this.playerElement,
+        onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
+
+        videoDuration: videoInfo.duration,
+        enableHotkeys: true,
+        peertubeLink: this.peertubeLink,
+        poster: window.location.origin + videoInfo.previewPath,
+        theaterButton: false,
+
+        serverUrl: window.location.origin,
+        language: navigator.language,
+        embedUrl: window.location.origin + videoInfo.embedPath
+      },
+
+      webtorrent: {
+        videoFiles: videoInfo.files
+      }
+    }
+
+    if (this.mode === 'p2p-media-loader') {
+      const hlsPlaylist = videoInfo.streamingPlaylists.find(p => p.type === VideoStreamingPlaylistType.HLS)
+
+      Object.assign(options, {
+        p2pMediaLoader: {
+          playlistUrl: hlsPlaylist.playlistUrl,
+          segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
+          redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
+          trackerAnnounce: videoInfo.trackerUrls,
+          videoFiles: hlsPlaylist.files
+        } as P2PMediaLoaderOptions
+      })
+    }
+
+    this.player = await PeertubePlayerManager.initialize(this.mode, options, (player: videojs.Player) => this.player = player)
+    this.player.on('customError', (event: any, data: any) => this.handleError(data.err, serverTranslations))
+
+    window[ 'videojsPlayer' ] = this.player
+
+    this.buildCSS()
+
+    await this.buildDock(videoInfo, config)
+
+    this.initializeApi()
+
+    this.removePlaceholder()
+
+    if (this.isPlaylistEmbed()) {
+      await this.buildPlaylistManager()
+
+      this.player.playlist().updateSelected()
+
+      this.player.on('stopped', () => {
+        this.playNextVideo()
+      })
+    }
+  }
+
+  private async initCore () {
+    if (this.userTokens) this.setHeadersFromTokens()
+
+    this.configPromise = this.loadConfig()
+    this.translationsPromise = TranslationsManager.getServerTranslations(window.location.origin, navigator.language)
+    this.PeertubePlayerManagerModulePromise = import('../../assets/player/peertube-player-manager')
+
+    let videoId: string
+
+    if (this.isPlaylistEmbed()) {
+      const playlistId = this.getResourceId()
+      const res = await this.loadPlaylist(playlistId)
+      if (!res) return undefined
+
+      this.playlist = await res.playlistResponse.json()
+
+      const playlistElementResult = await res.videosResponse.json()
+      this.playlistElements = await this.loadAllPlaylistVideos(playlistId, playlistElementResult)
+
+      const params = new URL(window.location.toString()).searchParams
+      const playlistPositionParam = this.getParamString(params, 'playlistPosition')
+
+      let position = 1
+
+      if (playlistPositionParam) {
+        position = parseInt(playlistPositionParam + '', 10)
+      }
+
+      this.currentPlaylistElement = this.playlistElements.find(e => e.position === position)
+      if (!this.currentPlaylistElement || !this.currentPlaylistElement.video) {
+        console.error('Current playlist element is not valid.', this.currentPlaylistElement)
+        this.currentPlaylistElement = this.getNextPlaylistElement()
+      }
+
+      if (!this.currentPlaylistElement) {
+        console.error('This playlist does not have any valid element.')
+        const serverTranslations = await this.translationsPromise
+        this.playlistFetchError(serverTranslations)
+        return
+      }
+
+      videoId = this.currentPlaylistElement.video.uuid
+    } else {
+      videoId = this.getResourceId()
+    }
+
+    return this.loadVideoAndBuildPlayer(videoId)
+  }
+
+  private handleError (err: Error, translations?: { [ id: string ]: string }) {
+    if (err.message.indexOf('from xs param') !== -1) {
+      this.player.dispose()
+      this.playerElement = null
+      this.displayError('This video is not available because the remote instance is not responding.', translations)
+      return
+    }
+  }
+
+  private async buildDock (videoInfo: VideoDetails, config: ServerConfig) {
+    if (!this.controls) return
+
+    // On webtorrent fallback, player may have been disposed
+    if (!this.player.player_) return
+
+    const title = this.title ? videoInfo.name : undefined
+
+    const description = config.tracker.enabled && this.warningTitle
+      ? '<span class="text">' + peertubeTranslate('Watching this video may reveal your IP address to others.') + '</span>'
+      : undefined
+
+    this.player.dock({
+      title,
+      description
     })
-  })
-  .catch(err => console.error(err))
+  }
+
+  private buildCSS () {
+    const body = document.getElementById('custom-css')
+
+    if (this.bigPlayBackgroundColor) {
+      body.style.setProperty('--embedBigPlayBackgroundColor', this.bigPlayBackgroundColor)
+    }
+
+    if (this.foregroundColor) {
+      body.style.setProperty('--embedForegroundColor', this.foregroundColor)
+    }
+  }
+
+  private async buildCaptions (serverTranslations: any, captionsResponse: Response): Promise<VideoJSCaption[]> {
+    if (captionsResponse.ok) {
+      const { data } = (await captionsResponse.json()) as ResultList<VideoCaption>
+
+      return data.map(c => ({
+        label: peertubeTranslate(c.language.label, serverTranslations),
+        language: c.language.id,
+        src: window.location.origin + c.captionPath
+      }))
+    }
+
+    return []
+  }
+
+  private loadPlaceholder (video: VideoDetails) {
+    const placeholder = this.getPlaceholderElement()
+
+    const url = window.location.origin + video.previewPath
+    placeholder.style.backgroundImage = `url("${url}")`
+    placeholder.style.display = 'block'
+  }
+
+  private removePlaceholder () {
+    const placeholder = this.getPlaceholderElement()
+    placeholder.style.display = 'none'
+  }
+
+  private getPlaceholderElement () {
+    return document.getElementById('placeholder-preview')
+  }
+
+  private setHeadersFromTokens () {
+    this.headers.set('Authorization', `${this.userTokens.tokenType} ${this.userTokens.accessToken}`)
+  }
+
+  private getResourceId () {
+    const urlParts = window.location.pathname.split('/')
+    return urlParts[ urlParts.length - 1 ]
+  }
+
+  private isPlaylistEmbed () {
+    return window.location.pathname.split('/')[1] === 'video-playlists'
+  }
+}
+
+PeerTubeEmbed.main()
+  .catch(err => console.error('Cannot init embed.', err))