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import { join } from 'path'
import { doRequestAndSaveToFile } from '@server/helpers/requests'
import { CONFIG } from '../../initializers/config'
import { FILES_CACHE } from '../../initializers/constants'
import { VideoModel } from '../../models/video/video'
import { VideoCaptionModel } from '../../models/video/video-caption'
import { AbstractVideoStaticFileCache } from './abstract-video-static-file-cache'
class VideosCaptionCache extends AbstractVideoStaticFileCache <string> {
private static instance: VideosCaptionCache
private constructor () {
super()
}
static get Instance () {
return this.instance || (this.instance = new this())
}
async getFilePathImpl (filename: string) {
const videoCaption = await VideoCaptionModel.loadWithVideoByFilename(filename)
if (!videoCaption) return undefined
if (videoCaption.isOwned()) return { isOwned: true, path: join(CONFIG.STORAGE.CAPTIONS_DIR, videoCaption.filename) }
return this.loadRemoteFile(filename)
}
// Key is the caption filename
protected async loadRemoteFile (key: string) {
const videoCaption = await VideoCaptionModel.loadWithVideoByFilename(key)
if (!videoCaption) return undefined
if (videoCaption.isOwned()) throw new Error('Cannot load remote caption of owned video.')
// Used to fetch the path
const video = await VideoModel.loadFull(videoCaption.videoId)
if (!video) return undefined
const remoteUrl = videoCaption.getFileUrl(video)
const destPath = join(FILES_CACHE.VIDEO_CAPTIONS.DIRECTORY, videoCaption.filename)
await doRequestAndSaveToFile(remoteUrl, destPath)
return { isOwned: false, path: destPath }
}
}
export {
VideosCaptionCache
}
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