import { OrderItem, Transaction } from 'sequelize' import { AllowNull, BeforeDestroy, BelongsTo, Column, CreatedAt, ForeignKey, Is, Model, Scopes, Table, UpdatedAt } from 'sequelize-typescript' import { buildWhereIdOrUUID, throwIfNotValid } from '../utils' import { VideoModel } from './video' import { isVideoCaptionLanguageValid } from '../../helpers/custom-validators/video-captions' import { VideoCaption } from '../../../shared/models/videos/caption/video-caption.model' import { LAZY_STATIC_PATHS, VIDEO_LANGUAGES } from '../../initializers/constants' import { join } from 'path' import { logger } from '../../helpers/logger' import { remove } from 'fs-extra' import { CONFIG } from '../../initializers/config' import * as Bluebird from 'bluebird' import { MVideoCaptionFormattable, MVideoCaptionVideo } from '@server/typings/models' 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: [ '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 @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.$get('Video') } if (instance.isOwned()) { logger.info('Removing captions %s of video %s.', instance.Video.uuid, instance.language) try { await instance.removeCaptionFile() } catch (err) { logger.error('Cannot remove caption file of video %s.', instance.Video.uuid) } } return undefined } static loadByVideoIdAndLanguage (videoId: string | number, language: string): Bluebird { const videoInclude = { model: VideoModel.unscoped(), attributes: [ 'id', 'remote', 'uuid' ], where: buildWhereIdOrUUID(videoId) } const query = { where: { language }, include: [ videoInclude ] } return VideoCaptionModel.findOne(query) } static insertOrReplaceLanguage (videoId: number, language: string, transaction: Transaction) { const values = { videoId, language } return VideoCaptionModel.upsert(values, { transaction, returning: true }) .then(([ caption ]) => caption) } static listVideoCaptions (videoId: number): Bluebird { const query = { order: [ [ 'language', 'ASC' ] ] as OrderItem[], where: { videoId } } return VideoCaptionModel.scope(ScopeNames.WITH_VIDEO_UUID_AND_REMOTE).findAll(query) } static getLanguageLabel (language: string) { return VIDEO_LANGUAGES[language] || 'Unknown' } static deleteAllCaptionsOfRemoteVideo (videoId: number, transaction: Transaction) { const query = { where: { videoId }, transaction } return VideoCaptionModel.destroy(query) } isOwned () { return this.Video.remote === false } toFormattedJSON (this: MVideoCaptionFormattable): VideoCaption { return { language: { id: this.language, label: VideoCaptionModel.getLanguageLabel(this.language) }, captionPath: this.getCaptionStaticPath() } } getCaptionStaticPath (this: MVideoCaptionFormattable) { return join(LAZY_STATIC_PATHS.VIDEO_CAPTIONS, this.getCaptionName()) } getCaptionName (this: MVideoCaptionFormattable) { return `${this.Video.uuid}-${this.language}.vtt` } removeCaptionFile (this: MVideoCaptionFormattable) { return remove(CONFIG.STORAGE.CAPTIONS_DIR + this.getCaptionName()) } }