import { remove } from 'fs-extra' import { join } from 'path' import { OrderItem, Transaction } from 'sequelize' import { AllowNull, BeforeDestroy, BelongsTo, Column, CreatedAt, DataType, ForeignKey, Is, Model, Scopes, Table, UpdatedAt } from 'sequelize-typescript' import { v4 as uuidv4 } from 'uuid' import { MVideo, MVideoCaption, MVideoCaptionFormattable, MVideoCaptionVideo } from '@server/types/models' import { VideoCaption } from '../../../shared/models/videos/caption/video-caption.model' import { isVideoCaptionLanguageValid } from '../../helpers/custom-validators/video-captions' import { logger } from '../../helpers/logger' import { CONFIG } from '../../initializers/config' import { CONSTRAINTS_FIELDS, LAZY_STATIC_PATHS, VIDEO_LANGUAGES, WEBSERVER } from '../../initializers/constants' import { buildWhereIdOrUUID, throwIfNotValid } from '../utils' import { VideoModel } from './video' export enum ScopeNames { WITH_VIDEO_UUID_AND_REMOTE = 'WITH_VIDEO_UUID_AND_REMOTE' } @Scopes(() => ({ [ScopeNames.WITH_VIDEO_UUID_AND_REMOTE]: { include: [ { attributes: [ 'id', 'uuid', 'remote' ], model: VideoModel.unscoped(), required: true } ] } })) @Table({ tableName: 'videoCaption', indexes: [ { fields: [ 'filename' ], unique: true }, { fields: [ 'videoId' ] }, { fields: [ 'videoId', 'language' ], unique: true } ] }) export class VideoCaptionModel extends Model { @CreatedAt createdAt: Date @UpdatedAt updatedAt: Date @AllowNull(false) @Is('VideoCaptionLanguage', value => throwIfNotValid(value, isVideoCaptionLanguageValid, 'language')) @Column language: string @AllowNull(false) @Column filename: string @AllowNull(true) @Column(DataType.STRING(CONSTRAINTS_FIELDS.COMMONS.URL.max)) fileUrl: string @ForeignKey(() => VideoModel) @Column videoId: number @BelongsTo(() => VideoModel, { foreignKey: { allowNull: false }, onDelete: 'CASCADE' }) Video: VideoModel @BeforeDestroy static async removeFiles (instance: VideoCaptionModel) { if (!instance.Video) { instance.Video = await instance.$get('Video') } if (instance.isOwned()) { logger.info('Removing caption %s.', instance.filename) try { await instance.removeCaptionFile() } catch (err) { logger.error('Cannot remove caption file %s.', instance.filename) } } return undefined } static loadByVideoIdAndLanguage (videoId: string | number, language: string): Promise { const videoInclude = { model: VideoModel.unscoped(), attributes: [ 'id', 'remote', 'uuid' ], where: buildWhereIdOrUUID(videoId) } const query = { where: { language }, include: [ videoInclude ] } return VideoCaptionModel.findOne(query) } static loadWithVideoByFilename (filename: string): Promise { const query = { where: { filename }, include: [ { model: VideoModel.unscoped(), attributes: [ 'id', 'remote', 'uuid' ] } ] } return VideoCaptionModel.findOne(query) } static async insertOrReplaceLanguage (caption: MVideoCaption, transaction: Transaction) { const existing = await VideoCaptionModel.loadByVideoIdAndLanguage(caption.videoId, caption.language) // Delete existing file if (existing) await existing.destroy({ transaction }) return caption.save({ transaction }) } static listVideoCaptions (videoId: number): Promise { const query = { order: [ [ 'language', 'ASC' ] ] as OrderItem[], where: { videoId } } return VideoCaptionModel.scope(ScopeNames.WITH_VIDEO_UUID_AND_REMOTE).findAll(query) } static getLanguageLabel (language: string) { return VIDEO_LANGUAGES[language] || 'Unknown' } static deleteAllCaptionsOfRemoteVideo (videoId: number, transaction: Transaction) { const query = { where: { videoId }, transaction } return VideoCaptionModel.destroy(query) } static generateCaptionName (language: string) { return `${uuidv4()}-${language}.vtt` } isOwned () { return this.Video.remote === false } toFormattedJSON (this: MVideoCaptionFormattable): VideoCaption { return { language: { id: this.language, label: VideoCaptionModel.getLanguageLabel(this.language) }, captionPath: this.getCaptionStaticPath() } } getCaptionStaticPath (this: MVideoCaption) { return join(LAZY_STATIC_PATHS.VIDEO_CAPTIONS, this.filename) } removeCaptionFile (this: MVideoCaption) { return remove(CONFIG.STORAGE.CAPTIONS_DIR + this.filename) } getFileUrl (video: MVideo) { if (!this.Video) this.Video = video as VideoModel if (video.isOwned()) return WEBSERVER.URL + this.getCaptionStaticPath() return this.fileUrl } }