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import { join } from 'path'
import { CACHE, CONFIG } from '../../initializers'
import { VideoModel } from '../../models/video/video'
import { VideoCaptionModel } from '../../models/video/video-caption'
import { AbstractVideoStaticFileCache } from './abstract-video-static-file-cache'
type GetPathParam = { videoId: string, language: string }
class VideosCaptionCache extends AbstractVideoStaticFileCache <GetPathParam> {
private static readonly KEY_DELIMITER = '%'
private static instance: VideosCaptionCache
private constructor () {
super()
}
static get Instance () {
return this.instance || (this.instance = new this())
}
async getFilePath (params: GetPathParam) {
const videoCaption = await VideoCaptionModel.loadByVideoIdAndLanguage(params.videoId, params.language)
if (!videoCaption) return undefined
if (videoCaption.isOwned()) return join(CONFIG.STORAGE.CAPTIONS_DIR, videoCaption.getCaptionName())
const key = params.videoId + VideosCaptionCache.KEY_DELIMITER + params.language
return this.loadFromLRU(key)
}
protected async loadRemoteFile (key: string) {
const [ videoId, language ] = key.split(VideosCaptionCache.KEY_DELIMITER)
const videoCaption = await VideoCaptionModel.loadByVideoIdAndLanguage(videoId, language)
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.loadByUUIDAndPopulateAccountAndServerAndTags(videoId)
if (!video) return undefined
const remoteStaticPath = videoCaption.getCaptionStaticPath()
const destPath = join(CACHE.DIRECTORIES.VIDEO_CAPTIONS, videoCaption.getCaptionName())
return this.saveRemoteVideoFileAndReturnPath(video, remoteStaticPath, destPath)
}
}
export {
VideosCaptionCache
}
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