import { join } from 'path' import { logger } from '@server/helpers/logger.js' import { doRequestAndSaveToFile } from '@server/helpers/requests.js' import { CONFIG } from '../../initializers/config.js' import { FILES_CACHE } from '../../initializers/constants.js' import { VideoModel } from '../../models/video/video.js' import { VideoCaptionModel } from '../../models/video/video-caption.js' import { AbstractSimpleFileCache } from './shared/abstract-simple-file-cache.js' class VideoCaptionsSimpleFileCache extends AbstractSimpleFileCache { private static instance: VideoCaptionsSimpleFileCache 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) try { await doRequestAndSaveToFile(remoteUrl, destPath) return { isOwned: false, path: destPath } } catch (err) { logger.info('Cannot fetch remote caption file %s.', remoteUrl, { err }) return undefined } } } export { VideoCaptionsSimpleFileCache }