server/lib/files-cache/videos-preview-cache.ts

   1 import { join } from 'path'
   2 import { FILES_CACHE, STATIC_PATHS } from '../../initializers/constants'
   3 import { VideoModel } from '../../models/video/video'
   4 import { AbstractVideoStaticFileCache } from './abstract-video-static-file-cache'
   5 import { CONFIG } from '../../initializers/config'
   6
   7 class VideosPreviewCache extends AbstractVideoStaticFileCache <string> {
   8
   9   private static instance: VideosPreviewCache
  10
  11   private constructor () {
  12     super()
  13   }
  14
  15   static get Instance () {
  16     return this.instance || (this.instance = new this())
  17   }
  18
  19   async getFilePathImpl (videoUUID: string) {
  20     const video = await VideoModel.loadByUUIDWithFile(videoUUID)
  21     if (!video) return undefined
  22
  23     if (video.isOwned()) return join(CONFIG.STORAGE.PREVIEWS_DIR, video.getPreview().filename)
  24
  25     return this.loadRemoteFile(videoUUID)
  26   }
  27
  28   protected async loadRemoteFile (key: string) {
  29     const video = await VideoModel.loadAndPopulateAccountAndServerAndTags(key)
  30     if (!video) return undefined
  31
  32     if (video.isOwned()) throw new Error('Cannot load remote preview of owned video.')
  33
  34     // FIXME: use URL
  35     const remoteStaticPath = join(STATIC_PATHS.PREVIEWS, video.getPreview().filename)
  36     const destPath = join(FILES_CACHE.PREVIEWS.DIRECTORY, video.getPreview().filename)
  37
  38     return this.saveRemoteVideoFileAndReturnPath(video, remoteStaticPath, destPath)
  39   }
  40 }
  41
  42 export {
  43   VideosPreviewCache
  44 }