import { AllowNull, BeforeDestroy, BelongsTo, Column, CreatedAt, DataType, Default, DefaultScope, ForeignKey, HasMany, Is, Model, Scopes, Sequelize, Table, UpdatedAt } from 'sequelize-typescript' import { ActivityPubActor } from '../../../shared/models/activitypub' import { VideoChannel, VideoChannelSummary } from '../../../shared/models/videos' import { isVideoChannelDescriptionValid, isVideoChannelNameValid, isVideoChannelSupportValid } from '../../helpers/custom-validators/video-channels' import { sendDeleteActor } from '../../lib/activitypub/send' import { AccountModel, ScopeNames as AccountModelScopeNames, SummaryOptions as AccountSummaryOptions } from '../account/account' import { ActorModel, unusedActorAttributesForAPI } from '../activitypub/actor' import { buildServerIdsFollowedBy, buildTrigramSearchIndex, createSimilarityAttribute, getSort, throwIfNotValid } from '../utils' import { VideoModel } from './video' import { CONSTRAINTS_FIELDS, WEBSERVER } from '../../initializers/constants' import { ServerModel } from '../server/server' import { FindOptions, Op, literal, ScopeOptions } from 'sequelize' import { AvatarModel } from '../avatar/avatar' import { VideoPlaylistModel } from './video-playlist' import * as Bluebird from 'bluebird' import { MChannelAccountDefault, MChannelActor, MChannelActorAccountDefaultVideos, MChannelAP, MChannelFormattable, MChannelSummaryFormattable } from '../../types/models/video' export enum ScopeNames { FOR_API = 'FOR_API', SUMMARY = 'SUMMARY', WITH_ACCOUNT = 'WITH_ACCOUNT', WITH_ACTOR = 'WITH_ACTOR', WITH_VIDEOS = 'WITH_VIDEOS', WITH_STATS = 'WITH_STATS' } type AvailableForListOptions = { actorId: number search?: string } type AvailableWithStatsOptions = { daysPrior: number } export type SummaryOptions = { actorRequired?: boolean // Default: true withAccount?: boolean // Default: false withAccountBlockerIds?: number[] } @DefaultScope(() => ({ include: [ { model: ActorModel, required: true } ] })) @Scopes(() => ({ [ScopeNames.FOR_API]: (options: AvailableForListOptions) => { // Only list local channels OR channels that are on an instance followed by actorId const inQueryInstanceFollow = buildServerIdsFollowedBy(options.actorId) return { include: [ { attributes: { exclude: unusedActorAttributesForAPI }, model: ActorModel, where: { [Op.or]: [ { serverId: null }, { serverId: { [Op.in]: Sequelize.literal(inQueryInstanceFollow) } } ] } }, { model: AccountModel, required: true, include: [ { attributes: { exclude: unusedActorAttributesForAPI }, model: ActorModel, // Default scope includes avatar and server required: true } ] } ] } }, [ScopeNames.SUMMARY]: (options: SummaryOptions = {}) => { const base: FindOptions = { attributes: [ 'id', 'name', 'description', 'actorId' ], include: [ { attributes: [ 'id', 'preferredUsername', 'url', 'serverId', 'avatarId' ], model: ActorModel.unscoped(), required: options.actorRequired ?? true, include: [ { attributes: [ 'host' ], model: ServerModel.unscoped(), required: false }, { model: AvatarModel.unscoped(), required: false } ] } ] } if (options.withAccount === true) { base.include.push({ model: AccountModel.scope({ method: [ AccountModelScopeNames.SUMMARY, { withAccountBlockerIds: options.withAccountBlockerIds } as AccountSummaryOptions ] }), required: true }) } return base }, [ScopeNames.WITH_ACCOUNT]: { include: [ { model: AccountModel, required: true } ] }, [ScopeNames.WITH_ACTOR]: { include: [ ActorModel ] }, [ScopeNames.WITH_VIDEOS]: { include: [ VideoModel ] }, [ScopeNames.WITH_STATS]: (options: AvailableWithStatsOptions = { daysPrior: 30 }) => { const daysPrior = parseInt(options.daysPrior + '', 10) return { attributes: { include: [ [ literal('(SELECT COUNT(*) FROM "video" WHERE "channelId" = "VideoChannelModel"."id")'), 'videosCount' ], [ literal( '(' + `SELECT string_agg(concat_ws('|', t.day, t.views), ',') ` + 'FROM ( ' + 'WITH ' + 'days AS ( ' + `SELECT generate_series(date_trunc('day', now()) - '${daysPrior} day'::interval, ` + `date_trunc('day', now()), '1 day'::interval) AS day ` + ') ' + 'SELECT days.day AS day, COALESCE(SUM("videoView".views), 0) AS views ' + 'FROM days ' + 'LEFT JOIN (' + '"videoView" INNER JOIN "video" ON "videoView"."videoId" = "video"."id" ' + 'AND "video"."channelId" = "VideoChannelModel"."id"' + `) ON date_trunc('day', "videoView"."startDate") = date_trunc('day', days.day) ` + 'GROUP BY day ' + 'ORDER BY day ' + ') t' + ')' ), 'viewsPerDay' ] ] } } } })) @Table({ tableName: 'videoChannel', indexes: [ buildTrigramSearchIndex('video_channel_name_trigram', 'name'), { fields: [ 'accountId' ] }, { fields: [ 'actorId' ] } ] }) export class VideoChannelModel extends Model { @AllowNull(false) @Is('VideoChannelName', value => throwIfNotValid(value, isVideoChannelNameValid, 'name')) @Column name: string @AllowNull(true) @Default(null) @Is('VideoChannelDescription', value => throwIfNotValid(value, isVideoChannelDescriptionValid, 'description', true)) @Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEO_CHANNELS.DESCRIPTION.max)) description: string @AllowNull(true) @Default(null) @Is('VideoChannelSupport', value => throwIfNotValid(value, isVideoChannelSupportValid, 'support', true)) @Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEO_CHANNELS.SUPPORT.max)) support: string @CreatedAt createdAt: Date @UpdatedAt updatedAt: Date @ForeignKey(() => ActorModel) @Column actorId: number @BelongsTo(() => ActorModel, { foreignKey: { allowNull: false }, onDelete: 'cascade' }) Actor: ActorModel @ForeignKey(() => AccountModel) @Column accountId: number @BelongsTo(() => AccountModel, { foreignKey: { allowNull: false }, hooks: true }) Account: AccountModel @HasMany(() => VideoModel, { foreignKey: { name: 'channelId', allowNull: false }, onDelete: 'CASCADE', hooks: true }) Videos: VideoModel[] @HasMany(() => VideoPlaylistModel, { foreignKey: { allowNull: true }, onDelete: 'CASCADE', hooks: true }) VideoPlaylists: VideoPlaylistModel[] @BeforeDestroy static async sendDeleteIfOwned (instance: VideoChannelModel, options) { if (!instance.Actor) { instance.Actor = await instance.$get('Actor', { transaction: options.transaction }) } if (instance.Actor.isOwned()) { return sendDeleteActor(instance.Actor, options.transaction) } return undefined } static countByAccount (accountId: number) { const query = { where: { accountId } } return VideoChannelModel.count(query) } static listForApi (parameters: { actorId: number start: number count: number sort: string }) { const { actorId } = parameters const query = { offset: parameters.start, limit: parameters.count, order: getSort(parameters.sort) } const scopes = { method: [ ScopeNames.FOR_API, { actorId } as AvailableForListOptions ] } return VideoChannelModel .scope(scopes) .findAndCountAll(query) .then(({ rows, count }) => { return { total: count, data: rows } }) } static listLocalsForSitemap (sort: string): Bluebird { const query = { attributes: [ ], offset: 0, order: getSort(sort), include: [ { attributes: [ 'preferredUsername', 'serverId' ], model: ActorModel.unscoped(), where: { serverId: null } } ] } return VideoChannelModel .unscoped() .findAll(query) } static searchForApi (options: { actorId: number search: string start: number count: number sort: string }) { const attributesInclude = [] const escapedSearch = VideoModel.sequelize.escape(options.search) const escapedLikeSearch = VideoModel.sequelize.escape('%' + options.search + '%') attributesInclude.push(createSimilarityAttribute('VideoChannelModel.name', options.search)) const query = { attributes: { include: attributesInclude }, offset: options.start, limit: options.count, order: getSort(options.sort), where: { [Op.or]: [ Sequelize.literal( 'lower(immutable_unaccent("VideoChannelModel"."name")) % lower(immutable_unaccent(' + escapedSearch + '))' ), Sequelize.literal( 'lower(immutable_unaccent("VideoChannelModel"."name")) LIKE lower(immutable_unaccent(' + escapedLikeSearch + '))' ) ] } } const scopes = { method: [ ScopeNames.FOR_API, { actorId: options.actorId } as AvailableForListOptions ] } return VideoChannelModel .scope(scopes) .findAndCountAll(query) .then(({ rows, count }) => { return { total: count, data: rows } }) } static listByAccount (options: { accountId: number start: number count: number sort: string withStats?: boolean search?: string }) { const escapedSearch = VideoModel.sequelize.escape(options.search) const escapedLikeSearch = VideoModel.sequelize.escape('%' + options.search + '%') const where = options.search ? { [Op.or]: [ Sequelize.literal( 'lower(immutable_unaccent("VideoChannelModel"."name")) % lower(immutable_unaccent(' + escapedSearch + '))' ), Sequelize.literal( 'lower(immutable_unaccent("VideoChannelModel"."name")) LIKE lower(immutable_unaccent(' + escapedLikeSearch + '))' ) ] } : null const query = { offset: options.start, limit: options.count, order: getSort(options.sort), include: [ { model: AccountModel, where: { id: options.accountId }, required: true } ], where } const scopes: string | ScopeOptions | (string | ScopeOptions)[] = [ ScopeNames.WITH_ACTOR ] if (options.withStats === true) { scopes.push({ method: [ ScopeNames.WITH_STATS, { daysPrior: 30 } as AvailableWithStatsOptions ] }) } return VideoChannelModel .scope(scopes) .findAndCountAll(query) .then(({ rows, count }) => { return { total: count, data: rows } }) } static loadByIdAndPopulateAccount (id: number): Bluebird { return VideoChannelModel.unscoped() .scope([ ScopeNames.WITH_ACTOR, ScopeNames.WITH_ACCOUNT ]) .findByPk(id) } static loadByIdAndAccount (id: number, accountId: number): Bluebird { const query = { where: { id, accountId } } return VideoChannelModel.unscoped() .scope([ ScopeNames.WITH_ACTOR, ScopeNames.WITH_ACCOUNT ]) .findOne(query) } static loadAndPopulateAccount (id: number): Bluebird { return VideoChannelModel.unscoped() .scope([ ScopeNames.WITH_ACTOR, ScopeNames.WITH_ACCOUNT ]) .findByPk(id) } static loadByUrlAndPopulateAccount (url: string): Bluebird { const query = { include: [ { model: ActorModel, required: true, where: { url } } ] } return VideoChannelModel .scope([ ScopeNames.WITH_ACCOUNT ]) .findOne(query) } static loadByNameWithHostAndPopulateAccount (nameWithHost: string) { const [ name, host ] = nameWithHost.split('@') if (!host || host === WEBSERVER.HOST) return VideoChannelModel.loadLocalByNameAndPopulateAccount(name) return VideoChannelModel.loadByNameAndHostAndPopulateAccount(name, host) } static loadLocalByNameAndPopulateAccount (name: string): Bluebird { const query = { include: [ { model: ActorModel, required: true, where: { preferredUsername: name, serverId: null } } ] } return VideoChannelModel.unscoped() .scope([ ScopeNames.WITH_ACTOR, ScopeNames.WITH_ACCOUNT ]) .findOne(query) } static loadByNameAndHostAndPopulateAccount (name: string, host: string): Bluebird { const query = { include: [ { model: ActorModel, required: true, where: { preferredUsername: name }, include: [ { model: ServerModel, required: true, where: { host } } ] } ] } return VideoChannelModel.unscoped() .scope([ ScopeNames.WITH_ACTOR, ScopeNames.WITH_ACCOUNT ]) .findOne(query) } static loadAndPopulateAccountAndVideos (id: number): Bluebird { const options = { include: [ VideoModel ] } return VideoChannelModel.unscoped() .scope([ ScopeNames.WITH_ACTOR, ScopeNames.WITH_ACCOUNT, ScopeNames.WITH_VIDEOS ]) .findByPk(id, options) } toFormattedSummaryJSON (this: MChannelSummaryFormattable): VideoChannelSummary { const actor = this.Actor.toFormattedSummaryJSON() return { id: this.id, name: actor.name, displayName: this.getDisplayName(), url: actor.url, host: actor.host, avatar: actor.avatar } } toFormattedJSON (this: MChannelFormattable): VideoChannel { const viewsPerDayString = this.get('viewsPerDay') as string const videosCount = this.get('videosCount') as number let viewsPerDay: { date: Date, views: number }[] if (viewsPerDayString) { viewsPerDay = viewsPerDayString.split(',') .map(v => { const [ dateString, amount ] = v.split('|') return { date: new Date(dateString), views: +amount } }) } const actor = this.Actor.toFormattedJSON() const videoChannel = { id: this.id, displayName: this.getDisplayName(), description: this.description, support: this.support, isLocal: this.Actor.isOwned(), createdAt: this.createdAt, updatedAt: this.updatedAt, ownerAccount: undefined, videosCount, viewsPerDay } if (this.Account) videoChannel.ownerAccount = this.Account.toFormattedJSON() return Object.assign(actor, videoChannel) } toActivityPubObject (this: MChannelAP): ActivityPubActor { const obj = this.Actor.toActivityPubObject(this.name) return Object.assign(obj, { summary: this.description, support: this.support, attributedTo: [ { type: 'Person' as 'Person', id: this.Account.Actor.url } ] }) } getDisplayName () { return this.name } isOutdated () { return this.Actor.isOutdated() } }