import { join } from 'path' import { FILES_CACHE } from '../../initializers/constants.js' import { VideoModel } from '../../models/video/video.js' import { AbstractSimpleFileCache } from './shared/abstract-simple-file-cache.js' import { doRequestAndSaveToFile } from '@server/helpers/requests.js' import { ThumbnailModel } from '@server/models/video/thumbnail.js' import { ThumbnailType } from '@peertube/peertube-models' import { logger } from '@server/helpers/logger.js' class VideoPreviewsSimpleFileCache extends AbstractSimpleFileCache { private static instance: VideoPreviewsSimpleFileCache private constructor () { super() } static get Instance () { return this.instance || (this.instance = new this()) } async getFilePathImpl (filename: string) { const thumbnail = await ThumbnailModel.loadWithVideoByFilename(filename, ThumbnailType.PREVIEW) if (!thumbnail) return undefined if (thumbnail.Video.isOwned()) return { isOwned: true, path: thumbnail.getPath() } return this.loadRemoteFile(thumbnail.Video.uuid) } // Key is the video UUID protected async loadRemoteFile (key: string) { const video = await VideoModel.loadFull(key) if (!video) return undefined if (video.isOwned()) throw new Error('Cannot load remote preview of owned video.') const preview = video.getPreview() const destPath = join(FILES_CACHE.PREVIEWS.DIRECTORY, preview.filename) const remoteUrl = preview.getOriginFileUrl(video) try { await doRequestAndSaveToFile(remoteUrl, destPath) logger.debug('Fetched remote preview %s to %s.', remoteUrl, destPath) return { isOwned: false, path: destPath } } catch (err) { logger.info('Cannot fetch remote preview file %s.', remoteUrl, { err }) return undefined } } } export { VideoPreviewsSimpleFileCache }