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			476 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			476 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
const Path = require('path')
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const njodb = require('./libs/njodb')
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const Logger = require('./Logger')
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const { version } = require('../package.json')
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const LibraryItem = require('./objects/LibraryItem')
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const User = require('./objects/user/User')
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const Collection = require('./objects/Collection')
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const Playlist = require('./objects/Playlist')
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const Library = require('./objects/Library')
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const Author = require('./objects/entities/Author')
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const Series = require('./objects/entities/Series')
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const ServerSettings = require('./objects/settings/ServerSettings')
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const NotificationSettings = require('./objects/settings/NotificationSettings')
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const PlaybackSession = require('./objects/PlaybackSession')
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class Db {
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  constructor() {
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    this.LibraryItemsPath = Path.join(global.ConfigPath, 'libraryItems')
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    this.UsersPath = Path.join(global.ConfigPath, 'users')
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    this.SessionsPath = Path.join(global.ConfigPath, 'sessions')
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    this.LibrariesPath = Path.join(global.ConfigPath, 'libraries')
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    this.SettingsPath = Path.join(global.ConfigPath, 'settings')
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    this.CollectionsPath = Path.join(global.ConfigPath, 'collections')
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    this.PlaylistsPath = Path.join(global.ConfigPath, 'playlists')
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    this.AuthorsPath = Path.join(global.ConfigPath, 'authors')
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    this.SeriesPath = Path.join(global.ConfigPath, 'series')
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    this.FeedsPath = Path.join(global.ConfigPath, 'feeds')
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    const staleTime = 1000 * 60 * 2
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    this.libraryItemsDb = new njodb.Database(this.LibraryItemsPath, { lockoptions: { stale: staleTime } })
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    this.usersDb = new njodb.Database(this.UsersPath, { lockoptions: { stale: staleTime } })
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    this.sessionsDb = new njodb.Database(this.SessionsPath, { lockoptions: { stale: staleTime } })
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    this.librariesDb = new njodb.Database(this.LibrariesPath, { datastores: 2, lockoptions: { stale: staleTime } })
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    this.settingsDb = new njodb.Database(this.SettingsPath, { datastores: 2, lockoptions: { stale: staleTime } })
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    this.collectionsDb = new njodb.Database(this.CollectionsPath, { datastores: 2, lockoptions: { stale: staleTime } })
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    this.playlistsDb = new njodb.Database(this.PlaylistsPath, { datastores: 2, lockoptions: { stale: staleTime } })
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    this.authorsDb = new njodb.Database(this.AuthorsPath, { lockoptions: { stale: staleTime } })
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    this.seriesDb = new njodb.Database(this.SeriesPath, { datastores: 2, lockoptions: { stale: staleTime } })
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    this.feedsDb = new njodb.Database(this.FeedsPath, { datastores: 2, lockoptions: { stale: staleTime } })
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    this.libraryItems = []
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    this.users = []
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    this.libraries = []
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    this.settings = []
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    this.collections = []
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    this.playlists = []
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    this.authors = []
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    this.series = []
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    this.serverSettings = null
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    this.notificationSettings = null
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    // Stores previous version only if upgraded
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    this.previousVersion = null
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  }
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  get hasRootUser() {
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    return this.users.some(u => u.id === 'root')
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  }
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  getEntityDb(entityName) {
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    if (entityName === 'user') return this.usersDb
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    else if (entityName === 'session') return this.sessionsDb
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    else if (entityName === 'libraryItem') return this.libraryItemsDb
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    else if (entityName === 'library') return this.librariesDb
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    else if (entityName === 'settings') return this.settingsDb
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    else if (entityName === 'collection') return this.collectionsDb
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    else if (entityName === 'playlist') return this.playlistsDb
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    else if (entityName === 'author') return this.authorsDb
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    else if (entityName === 'series') return this.seriesDb
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    else if (entityName === 'feed') return this.feedsDb
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    return null
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  }
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  getEntityArrayKey(entityName) {
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    if (entityName === 'user') return 'users'
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    else if (entityName === 'session') return 'sessions'
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    else if (entityName === 'libraryItem') return 'libraryItems'
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    else if (entityName === 'library') return 'libraries'
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    else if (entityName === 'settings') return 'settings'
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    else if (entityName === 'collection') return 'collections'
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    else if (entityName === 'playlist') return 'playlists'
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    else if (entityName === 'author') return 'authors'
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    else if (entityName === 'series') return 'series'
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    else if (entityName === 'feed') return 'feeds'
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    return null
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  }
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  reinit() {
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    const staleTime = 1000 * 60 * 2
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    this.libraryItemsDb = new njodb.Database(this.LibraryItemsPath, { lockoptions: { stale: staleTime } })
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    this.usersDb = new njodb.Database(this.UsersPath, { lockoptions: { stale: staleTime } })
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    this.sessionsDb = new njodb.Database(this.SessionsPath, { lockoptions: { stale: staleTime } })
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    this.librariesDb = new njodb.Database(this.LibrariesPath, { datastores: 2, lockoptions: { stale: staleTime } })
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    this.settingsDb = new njodb.Database(this.SettingsPath, { datastores: 2, lockoptions: { stale: staleTime } })
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    this.collectionsDb = new njodb.Database(this.CollectionsPath, { datastores: 2, lockoptions: { stale: staleTime } })
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    this.playlistsDb = new njodb.Database(this.PlaylistsPath, { datastores: 2, lockoptions: { stale: staleTime } })
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    this.authorsDb = new njodb.Database(this.AuthorsPath, { lockoptions: { stale: staleTime } })
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    this.seriesDb = new njodb.Database(this.SeriesPath, { datastores: 2, lockoptions: { stale: staleTime } })
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    this.feedsDb = new njodb.Database(this.FeedsPath, { datastores: 2, lockoptions: { stale: staleTime } })
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    return this.init()
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  }
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  // Get previous server version before loading DB to check whether a db migration is required
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  //   returns null if server was not upgraded
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  checkPreviousVersion() {
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    return this.settingsDb.select(() => true).then((results) => {
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      if (results.data && results.data.length) {
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        var serverSettings = results.data.find(s => s.id === 'server-settings')
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        if (serverSettings && serverSettings.version && serverSettings.version !== version) {
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          return serverSettings.version
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        }
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      }
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      return null
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    })
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  }
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  createRootUser(username, pash, token) {
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    const newRoot = new User({
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      id: 'root',
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      type: 'root',
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      username,
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      pash,
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      token,
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      isActive: true,
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      createdAt: Date.now()
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    })
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    return this.insertEntity('user', newRoot)
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  }
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  async init() {
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    await this.load()
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    if (!this.serverSettings) { // Create first load server settings
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      this.serverSettings = new ServerSettings()
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      await this.insertEntity('settings', this.serverSettings)
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    }
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    if (!this.notificationSettings) {
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      this.notificationSettings = new NotificationSettings()
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      await this.insertEntity('settings', this.notificationSettings)
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    }
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    global.ServerSettings = this.serverSettings.toJSON()
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  }
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  async load() {
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    const p1 = this.libraryItemsDb.select(() => true).then((results) => {
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      this.libraryItems = results.data.map(a => new LibraryItem(a))
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      Logger.info(`[DB] ${this.libraryItems.length} Library Items Loaded`)
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    })
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    const p2 = this.usersDb.select(() => true).then((results) => {
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      this.users = results.data.map(u => new User(u))
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      Logger.info(`[DB] ${this.users.length} Users Loaded`)
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    })
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    const p3 = this.librariesDb.select(() => true).then((results) => {
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      this.libraries = results.data.map(l => new Library(l))
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      this.libraries.sort((a, b) => a.displayOrder - b.displayOrder)
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      Logger.info(`[DB] ${this.libraries.length} Libraries Loaded`)
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    })
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    const p4 = this.settingsDb.select(() => true).then(async (results) => {
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      if (results.data && results.data.length) {
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        this.settings = results.data
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        var serverSettings = this.settings.find(s => s.id === 'server-settings')
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        if (serverSettings) {
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          this.serverSettings = new ServerSettings(serverSettings)
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          // Check if server was upgraded
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          if (!this.serverSettings.version || this.serverSettings.version !== version) {
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            this.previousVersion = this.serverSettings.version || '1.0.0'
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            // Library settings and server settings updated in 2.1.3 - run migration
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            if (this.previousVersion.localeCompare('2.1.3') < 0) {
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              Logger.info(`[Db] Running servers & library settings migration`)
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              for (const library of this.libraries) {
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                if (library.settings.coverAspectRatio !== serverSettings.coverAspectRatio) {
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                  library.settings.coverAspectRatio = serverSettings.coverAspectRatio
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                  await this.updateEntity('library', library)
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                  Logger.debug(`[Db] Library ${library.name} migrated`)
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                }
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              }
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            }
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          }
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        }
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        var notificationSettings = this.settings.find(s => s.id === 'notification-settings')
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        if (notificationSettings) {
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          this.notificationSettings = new NotificationSettings(notificationSettings)
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        }
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      }
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    })
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    const p5 = this.collectionsDb.select(() => true).then((results) => {
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      this.collections = results.data.map(l => new Collection(l))
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      Logger.info(`[DB] ${this.collections.length} Collections Loaded`)
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    })
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    const p6 = this.playlistsDb.select(() => true).then((results) => {
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      this.playlists = results.data.map(l => new Playlist(l))
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      Logger.info(`[DB] ${this.playlists.length} Playlists Loaded`)
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    })
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    const p7 = this.authorsDb.select(() => true).then((results) => {
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      this.authors = results.data.map(l => new Author(l))
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      Logger.info(`[DB] ${this.authors.length} Authors Loaded`)
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    })
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    const p8 = this.seriesDb.select(() => true).then((results) => {
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      this.series = results.data.map(l => new Series(l))
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      Logger.info(`[DB] ${this.series.length} Series Loaded`)
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    })
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    await Promise.all([p1, p2, p3, p4, p5, p6, p7, p8])
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    // Update server version in server settings
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    if (this.previousVersion) {
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      this.serverSettings.version = version
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      await this.updateServerSettings()
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    }
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  }
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  getLibraryItem(id) {
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    return this.libraryItems.find(li => li.id === id)
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  }
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  getLibraryItemsInLibrary(libraryId) {
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    return this.libraryItems.filter(li => li.libraryId === libraryId)
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  }
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  async updateLibraryItem(libraryItem) {
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    return this.updateLibraryItems([libraryItem])
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  }
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  async updateLibraryItems(libraryItems) {
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    await Promise.all(libraryItems.map(async (li) => {
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      if (li && li.saveMetadata) return li.saveMetadata()
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      return null
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    }))
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    var libraryItemIds = libraryItems.map(li => li.id)
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    return this.libraryItemsDb.update((record) => libraryItemIds.includes(record.id), (record) => {
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      return libraryItems.find(li => li.id === record.id)
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    }).then((results) => {
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      Logger.debug(`[DB] Library Items updated ${results.updated}`)
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      return true
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    }).catch((error) => {
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      Logger.error(`[DB] Library Items update failed ${error}`)
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      return false
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    })
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  }
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  async insertLibraryItem(libraryItem) {
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    return this.insertLibraryItems([libraryItem])
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  }
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  async insertLibraryItems(libraryItems) {
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    await Promise.all(libraryItems.map(async (li) => {
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      if (li && li.saveMetadata) return li.saveMetadata()
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      return null
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    }))
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    return this.libraryItemsDb.insert(libraryItems).then((results) => {
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      Logger.debug(`[DB] Library Items inserted ${results.inserted}`)
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      this.libraryItems = this.libraryItems.concat(libraryItems)
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      return true
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    }).catch((error) => {
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      Logger.error(`[DB] Library Items insert failed ${error}`)
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      return false
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    })
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  }
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  removeLibraryItem(id) {
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    return this.libraryItemsDb.delete((record) => record.id === id).then((results) => {
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      Logger.debug(`[DB] Deleted Library Items: ${results.deleted}`)
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      this.libraryItems = this.libraryItems.filter(li => li.id !== id)
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    }).catch((error) => {
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      Logger.error(`[DB] Remove Library Items Failed: ${error}`)
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    })
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  }
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  updateServerSettings() {
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    global.ServerSettings = this.serverSettings.toJSON()
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    return this.updateEntity('settings', this.serverSettings)
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  }
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  getAllEntities(entityName) {
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    var entityDb = this.getEntityDb(entityName)
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    return entityDb.select(() => true).then((results) => results.data).catch((error) => {
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      Logger.error(`[DB] Failed to get all ${entityName}`, error)
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      return null
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    })
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  }
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  insertEntities(entityName, entities) {
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    var entityDb = this.getEntityDb(entityName)
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    return entityDb.insert(entities).then((results) => {
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      Logger.debug(`[DB] Inserted ${results.inserted} ${entityName}`)
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      var arrayKey = this.getEntityArrayKey(entityName)
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      if (this[arrayKey]) this[arrayKey] = this[arrayKey].concat(entities)
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      return true
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    }).catch((error) => {
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      Logger.error(`[DB] Failed to insert ${entityName}`, error)
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      return false
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    })
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  }
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  insertEntity(entityName, entity) {
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    var entityDb = this.getEntityDb(entityName)
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    return entityDb.insert([entity]).then((results) => {
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      Logger.debug(`[DB] Inserted ${results.inserted} ${entityName}`)
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      var arrayKey = this.getEntityArrayKey(entityName)
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      if (this[arrayKey]) this[arrayKey].push(entity)
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      return true
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    }).catch((error) => {
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      Logger.error(`[DB] Failed to insert ${entityName}`, error)
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      return false
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    })
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  }
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  async bulkInsertEntities(entityName, entities, batchSize = 500) {
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    // Group entities in batches of size batchSize
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    var entityBatches = []
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    var batch = []
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    var index = 0
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    entities.forEach((ent) => {
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      batch.push(ent)
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      index++
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      if (index >= batchSize) {
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        entityBatches.push(batch)
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        index = 0
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        batch = []
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      }
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    })
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    if (batch.length) entityBatches.push(batch)
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    Logger.info(`[Db] bulkInsertEntities: ${entities.length} ${entityName} to ${entityBatches.length} batches of max size ${batchSize}`)
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    // Start inserting batches
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    var batchIndex = 1
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    for (const entityBatch of entityBatches) {
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      Logger.info(`[Db] bulkInsertEntities: Start inserting batch ${batchIndex} of ${entityBatch.length} for ${entityName}`)
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      var success = await this.insertEntities(entityName, entityBatch)
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      if (success) {
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        Logger.info(`[Db] bulkInsertEntities: Success inserting batch ${batchIndex} for ${entityName}`)
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      } else {
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        Logger.info(`[Db] bulkInsertEntities: Failed inserting batch ${batchIndex} for ${entityName}`)
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      }
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      batchIndex++
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    }
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    return true
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  }
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  updateEntities(entityName, entities) {
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    var entityDb = this.getEntityDb(entityName)
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    var entityIds = entities.map(ent => ent.id)
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    return entityDb.update((record) => entityIds.includes(record.id), (record) => {
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      return entities.find(ent => ent.id === record.id)
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    }).then((results) => {
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      Logger.debug(`[DB] Updated ${entityName}: ${results.updated}`)
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      var arrayKey = this.getEntityArrayKey(entityName)
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      if (this[arrayKey]) {
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        this[arrayKey] = this[arrayKey].map(e => {
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          if (entityIds.includes(e.id)) return entities.find(_e => _e.id === e.id)
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          return e
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        })
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      }
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      return true
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    }).catch((error) => {
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      Logger.error(`[DB] Update ${entityName} Failed: ${error}`)
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      return false
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    })
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  }
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  updateEntity(entityName, entity) {
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    var entityDb = this.getEntityDb(entityName)
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    var jsonEntity = entity
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    if (entity && entity.toJSON) {
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      jsonEntity = entity.toJSON()
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    }
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    return entityDb.update((record) => record.id === entity.id, () => jsonEntity).then((results) => {
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      Logger.debug(`[DB] Updated ${entityName}: ${results.updated}`)
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      var arrayKey = this.getEntityArrayKey(entityName)
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      if (this[arrayKey]) {
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        this[arrayKey] = this[arrayKey].map(e => {
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          return e.id === entity.id ? entity : e
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        })
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      }
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      return true
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    }).catch((error) => {
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      Logger.error(`[DB] Update entity ${entityName} Failed: ${error}`)
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      return false
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    })
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						|
  }
 | 
						|
 | 
						|
  removeEntity(entityName, entityId) {
 | 
						|
    var entityDb = this.getEntityDb(entityName)
 | 
						|
    return entityDb.delete((record) => {
 | 
						|
      return record.id === entityId
 | 
						|
    }).then((results) => {
 | 
						|
      Logger.debug(`[DB] Deleted entity ${entityName}: ${results.deleted}`)
 | 
						|
      var arrayKey = this.getEntityArrayKey(entityName)
 | 
						|
      if (this[arrayKey]) {
 | 
						|
        this[arrayKey] = this[arrayKey].filter(e => {
 | 
						|
          return e.id !== entityId
 | 
						|
        })
 | 
						|
      }
 | 
						|
    }).catch((error) => {
 | 
						|
      Logger.error(`[DB] Remove entity ${entityName} Failed: ${error}`)
 | 
						|
    })
 | 
						|
  }
 | 
						|
 | 
						|
  removeEntities(entityName, selectFunc) {
 | 
						|
    var entityDb = this.getEntityDb(entityName)
 | 
						|
    return entityDb.delete(selectFunc).then((results) => {
 | 
						|
      Logger.debug(`[DB] Deleted entities ${entityName}: ${results.deleted}`)
 | 
						|
      var arrayKey = this.getEntityArrayKey(entityName)
 | 
						|
      if (this[arrayKey]) {
 | 
						|
        this[arrayKey] = this[arrayKey].filter(e => {
 | 
						|
          return !selectFunc(e)
 | 
						|
        })
 | 
						|
      }
 | 
						|
      return results.deleted
 | 
						|
    }).catch((error) => {
 | 
						|
      Logger.error(`[DB] Remove entities ${entityName} Failed: ${error}`)
 | 
						|
      return 0
 | 
						|
    })
 | 
						|
  }
 | 
						|
 | 
						|
  recreateLibraryItemsDb() {
 | 
						|
    return this.libraryItemsDb.drop().then((results) => {
 | 
						|
      Logger.info(`[DB] Dropped library items db`, results)
 | 
						|
      this.libraryItemsDb = new njodb.Database(this.LibraryItemsPath)
 | 
						|
      this.libraryItems = []
 | 
						|
      return true
 | 
						|
    }).catch((error) => {
 | 
						|
      Logger.error(`[DB] Failed to drop library items db`, error)
 | 
						|
      return false
 | 
						|
    })
 | 
						|
  }
 | 
						|
 | 
						|
  getAllSessions(selectFunc = () => true) {
 | 
						|
    return this.sessionsDb.select(selectFunc).then((results) => {
 | 
						|
      return results.data || []
 | 
						|
    }).catch((error) => {
 | 
						|
      Logger.error('[Db] Failed to select sessions', error)
 | 
						|
      return []
 | 
						|
    })
 | 
						|
  }
 | 
						|
 | 
						|
  getPlaybackSession(id) {
 | 
						|
    return this.sessionsDb.select((pb) => pb.id == id).then((results) => {
 | 
						|
      if (results.data.length) {
 | 
						|
        return new PlaybackSession(results.data[0])
 | 
						|
      }
 | 
						|
      return null
 | 
						|
    }).catch((error) => {
 | 
						|
      Logger.error('Failed to get session', error)
 | 
						|
      return null
 | 
						|
    })
 | 
						|
  }
 | 
						|
 | 
						|
  selectUserSessions(userId) {
 | 
						|
    return this.sessionsDb.select((session) => session.userId === userId).then((results) => {
 | 
						|
      return results.data || []
 | 
						|
    }).catch((error) => {
 | 
						|
      Logger.error(`[Db] Failed to select user sessions "${userId}"`, error)
 | 
						|
      return []
 | 
						|
    })
 | 
						|
  }
 | 
						|
 | 
						|
  // Check if server was updated and previous version was earlier than param
 | 
						|
  checkPreviousVersionIsBefore(version) {
 | 
						|
    if (!this.previousVersion) return false
 | 
						|
    // true if version > previousVersion
 | 
						|
    return version.localeCompare(this.previousVersion) >= 0
 | 
						|
  }
 | 
						|
}
 | 
						|
module.exports = Db
 |