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import { remove } from 'fs-extra'
import { join } from 'path'
import {
AfterDestroy,
AllowNull,
BeforeCreate,
BeforeUpdate,
BelongsTo,
Column,
CreatedAt,
DataType,
Default,
ForeignKey,
Model,
Table,
UpdatedAt
} from 'sequelize-typescript'
import { afterCommitIfTransaction } from '@server/helpers/database-utils'
import { MThumbnail, MThumbnailVideo, MVideo } from '@server/types/models'
import { AttributesOnly } from '@shared/core-utils'
import { ThumbnailType } from '../../../shared/models/videos/thumbnail.type'
import { logger } from '../../helpers/logger'
import { CONFIG } from '../../initializers/config'
import { CONSTRAINTS_FIELDS, LAZY_STATIC_PATHS, STATIC_PATHS, WEBSERVER } from '../../initializers/constants'
import { VideoModel } from './video'
import { VideoPlaylistModel } from './video-playlist'
@Table({
tableName: 'thumbnail',
indexes: [
{
fields: [ 'videoId' ]
},
{
fields: [ 'videoPlaylistId' ],
unique: true
},
{
fields: [ 'filename', 'type' ],
unique: true
}
]
})
export class ThumbnailModel extends Model<Partial<AttributesOnly<ThumbnailModel>>> {
@AllowNull(false)
@Column
filename: string
@AllowNull(true)
@Default(null)
@Column
height: number
@AllowNull(true)
@Default(null)
@Column
width: number
@AllowNull(false)
@Column
type: ThumbnailType
@AllowNull(true)
@Column(DataType.STRING(CONSTRAINTS_FIELDS.COMMONS.URL.max))
fileUrl: string
@AllowNull(true)
@Column
automaticallyGenerated: boolean
@ForeignKey(() => VideoModel)
@Column
videoId: number
@BelongsTo(() => VideoModel, {
foreignKey: {
allowNull: true
},
onDelete: 'CASCADE'
})
Video: VideoModel
@ForeignKey(() => VideoPlaylistModel)
@Column
videoPlaylistId: number
@BelongsTo(() => VideoPlaylistModel, {
foreignKey: {
allowNull: true
},
onDelete: 'CASCADE'
})
VideoPlaylist: VideoPlaylistModel
@CreatedAt
createdAt: Date
@UpdatedAt
updatedAt: Date
// If this thumbnail replaced existing one, track the old name
previousThumbnailFilename: string
private static readonly types: { [ id in ThumbnailType ]: { label: string, directory: string, staticPath: string } } = {
[ThumbnailType.MINIATURE]: {
label: 'miniature',
directory: CONFIG.STORAGE.THUMBNAILS_DIR,
staticPath: STATIC_PATHS.THUMBNAILS
},
[ThumbnailType.PREVIEW]: {
label: 'preview',
directory: CONFIG.STORAGE.PREVIEWS_DIR,
staticPath: LAZY_STATIC_PATHS.PREVIEWS
}
}
@BeforeCreate
@BeforeUpdate
static removeOldFile (instance: ThumbnailModel, options) {
return afterCommitIfTransaction(options.transaction, () => instance.removePreviousFilenameIfNeeded())
}
@AfterDestroy
static removeFiles (instance: ThumbnailModel) {
logger.info('Removing %s file %s.', ThumbnailModel.types[instance.type].label, instance.filename)
// Don't block the transaction
instance.removeThumbnail()
.catch(err => logger.error('Cannot remove thumbnail file %s.', instance.filename, err))
}
static loadByFilename (filename: string, thumbnailType: ThumbnailType): Promise<MThumbnail> {
const query = {
where: {
filename,
type: thumbnailType
}
}
return ThumbnailModel.findOne(query)
}
static loadWithVideoByFilename (filename: string, thumbnailType: ThumbnailType): Promise<MThumbnailVideo> {
const query = {
where: {
filename,
type: thumbnailType
},
include: [
{
model: VideoModel.unscoped(),
required: true
}
]
}
return ThumbnailModel.findOne(query)
}
static buildPath (type: ThumbnailType, filename: string) {
const directory = ThumbnailModel.types[type].directory
return join(directory, filename)
}
getFileUrl (video: MVideo) {
const staticPath = ThumbnailModel.types[this.type].staticPath + this.filename
if (video.isOwned()) return WEBSERVER.URL + staticPath
return this.fileUrl
}
getPath () {
return ThumbnailModel.buildPath(this.type, this.filename)
}
getPreviousPath () {
return ThumbnailModel.buildPath(this.type, this.previousThumbnailFilename)
}
removeThumbnail () {
return remove(this.getPath())
}
removePreviousFilenameIfNeeded () {
if (!this.previousThumbnailFilename) return
const previousPath = this.getPreviousPath()
remove(previousPath)
.catch(err => logger.error('Cannot remove previous thumbnail file %s.', previousPath, { err }))
this.previousThumbnailFilename = undefined
}
}
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