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import { AllowNull, BelongsTo, Column, CreatedAt, DataType, ForeignKey, HasMany, Is, Model, Table, UpdatedAt } from 'sequelize-typescript'
import { isVideoFileInfoHashValid } from '../../helpers/custom-validators/videos'
import { throwIfNotValid } from '../utils'
import { VideoModel } from './video'
import * as Sequelize from 'sequelize'
import { VideoRedundancyModel } from '../redundancy/video-redundancy'
import { VideoStreamingPlaylistType } from '../../../shared/models/videos/video-streaming-playlist.type'
import { isActivityPubUrlValid } from '../../helpers/custom-validators/activitypub/misc'
import { CONSTRAINTS_FIELDS, STATIC_PATHS } from '../../initializers'
import { VideoFileModel } from './video-file'
import { join } from 'path'
import { sha1 } from '../../helpers/core-utils'
import { isArrayOf } from '../../helpers/custom-validators/misc'
@Table({
tableName: 'videoStreamingPlaylist',
indexes: [
{
fields: [ 'videoId' ]
},
{
fields: [ 'videoId', 'type' ],
unique: true
},
{
fields: [ 'p2pMediaLoaderInfohashes' ],
using: 'gin'
}
]
})
export class VideoStreamingPlaylistModel extends Model<VideoStreamingPlaylistModel> {
@CreatedAt
createdAt: Date
@UpdatedAt
updatedAt: Date
@AllowNull(false)
@Column
type: VideoStreamingPlaylistType
@AllowNull(false)
@Is('PlaylistUrl', value => throwIfNotValid(value, isActivityPubUrlValid, 'playlist url'))
@Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEOS.URL.max))
playlistUrl: string
@AllowNull(false)
@Is('VideoStreamingPlaylistInfoHashes', value => throwIfNotValid(value, v => isArrayOf(v, isVideoFileInfoHashValid), 'info hashes'))
@Column(DataType.ARRAY(DataType.STRING))
p2pMediaLoaderInfohashes: string[]
@AllowNull(false)
@Is('VideoStreamingSegmentsSha256Url', value => throwIfNotValid(value, isActivityPubUrlValid, 'segments sha256 url'))
@Column
segmentsSha256Url: string
@ForeignKey(() => VideoModel)
@Column
videoId: number
@BelongsTo(() => VideoModel, {
foreignKey: {
allowNull: false
},
onDelete: 'CASCADE'
})
Video: VideoModel
@HasMany(() => VideoRedundancyModel, {
foreignKey: {
allowNull: false
},
onDelete: 'CASCADE',
hooks: true
})
RedundancyVideos: VideoRedundancyModel[]
static doesInfohashExist (infoHash: string) {
const query = 'SELECT 1 FROM "videoStreamingPlaylist" WHERE $infoHash = ANY("p2pMediaLoaderInfohashes") LIMIT 1'
const options = {
type: Sequelize.QueryTypes.SELECT,
bind: { infoHash },
raw: true
}
return VideoModel.sequelize.query(query, options)
.then(results => {
return results.length === 1
})
}
static buildP2PMediaLoaderInfoHashes (playlistUrl: string, videoFiles: VideoFileModel[]) {
const hashes: string[] = []
// https://github.com/Novage/p2p-media-loader/blob/master/p2p-media-loader-core/lib/p2p-media-manager.ts#L97
for (let i = 0; i < videoFiles.length; i++) {
hashes.push(sha1(`1${playlistUrl}+V${i}`))
}
return hashes
}
static loadWithVideo (id: number) {
const options = {
include: [
{
model: VideoModel.unscoped(),
required: true
}
]
}
return VideoStreamingPlaylistModel.findByPk(id, options)
}
static getHlsPlaylistFilename (resolution: number) {
return resolution + '.m3u8'
}
static getMasterHlsPlaylistFilename () {
return 'master.m3u8'
}
static getHlsSha256SegmentsFilename () {
return 'segments-sha256.json'
}
static getHlsVideoName (uuid: string, resolution: number) {
return `${uuid}-${resolution}-fragmented.mp4`
}
static getHlsMasterPlaylistStaticPath (videoUUID: string) {
return join(STATIC_PATHS.PLAYLISTS.HLS, videoUUID, VideoStreamingPlaylistModel.getMasterHlsPlaylistFilename())
}
static getHlsPlaylistStaticPath (videoUUID: string, resolution: number) {
return join(STATIC_PATHS.PLAYLISTS.HLS, videoUUID, VideoStreamingPlaylistModel.getHlsPlaylistFilename(resolution))
}
static getHlsSha256SegmentsStaticPath (videoUUID: string) {
return join(STATIC_PATHS.PLAYLISTS.HLS, videoUUID, VideoStreamingPlaylistModel.getHlsSha256SegmentsFilename())
}
getStringType () {
if (this.type === VideoStreamingPlaylistType.HLS) return 'hls'
return 'unknown'
}
getVideoRedundancyUrl (baseUrlHttp: string) {
return baseUrlHttp + STATIC_PATHS.REDUNDANCY + this.getStringType() + '/' + this.Video.uuid
}
hasSameUniqueKeysThan (other: VideoStreamingPlaylistModel) {
return this.type === other.type &&
this.videoId === other.videoId
}
}
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