mirror of
https://github.com/advplyr/audiobookshelf.git
synced 2024-12-20 19:06:06 +01:00
1102 lines
46 KiB
JavaScript
1102 lines
46 KiB
JavaScript
const uuidv4 = require("uuid").v4
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const Path = require('path')
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const sequelize = require('sequelize')
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const { LogLevel } = require('../utils/constants')
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const { getTitleIgnorePrefix, areEquivalent } = require('../utils/index')
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const { parseOpfMetadataXML } = require('../utils/parsers/parseOpfMetadata')
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const { parseOverdriveMediaMarkersAsChapters } = require('../utils/parsers/parseOverdriveMediaMarkers')
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const abmetadataGenerator = require('../utils/generators/abmetadataGenerator')
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const parseNameString = require('../utils/parsers/parseNameString')
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const globals = require('../utils/globals')
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const AudioFileScanner = require('./AudioFileScanner')
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const Database = require('../Database')
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const { readTextFile, filePathToPOSIX, getFileTimestampsWithIno } = require('../utils/fileUtils')
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const AudioFile = require('../objects/files/AudioFile')
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const CoverManager = require('../managers/CoverManager')
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const LibraryFile = require('../objects/files/LibraryFile')
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const SocketAuthority = require('../SocketAuthority')
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const fsExtra = require("../libs/fsExtra")
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const LibraryScan = require("./LibraryScan")
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const BookFinder = require('../finders/BookFinder')
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/**
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* Metadata for books pulled from files
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* @typedef BookMetadataObject
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* @property {string} title
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* @property {string} titleIgnorePrefix
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* @property {string} subtitle
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* @property {string} publishedYear
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* @property {string} publisher
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* @property {string} description
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* @property {string} isbn
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* @property {string} asin
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* @property {string} language
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* @property {string[]} narrators
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* @property {string[]} genres
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* @property {string[]} tags
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* @property {string[]} authors
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* @property {{name:string, sequence:string}[]} series
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* @property {{id:number, start:number, end:number, title:string}[]} chapters
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* @property {boolean} explicit
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* @property {boolean} abridged
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* @property {string} coverPath
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*/
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class BookScanner {
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constructor() { }
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/**
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* @param {import('../models/LibraryItem')} existingLibraryItem
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* @param {import('./LibraryItemScanData')} libraryItemData
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* @param {import('../models/Library').LibrarySettingsObject} librarySettings
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* @param {LibraryScan} libraryScan
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* @returns {Promise<import('../models/LibraryItem')>}
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*/
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async rescanExistingBookLibraryItem(existingLibraryItem, libraryItemData, librarySettings, libraryScan) {
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/** @type {import('../models/Book')} */
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const media = await existingLibraryItem.getMedia({
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include: [
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{
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model: Database.authorModel,
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through: {
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attributes: ['id', 'createdAt']
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}
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},
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{
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model: Database.seriesModel,
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through: {
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attributes: ['id', 'sequence', 'createdAt']
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}
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}
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],
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order: [
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[Database.authorModel, Database.bookAuthorModel, 'createdAt', 'ASC'],
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[Database.seriesModel, 'bookSeries', 'createdAt', 'ASC']
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]
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})
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let hasMediaChanges = libraryItemData.hasAudioFileChanges
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if (libraryItemData.hasAudioFileChanges || libraryItemData.audioLibraryFiles.length !== media.audioFiles.length) {
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// Filter out audio files that were removed
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media.audioFiles = media.audioFiles.filter(af => !libraryItemData.checkAudioFileRemoved(af))
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// Update audio files that were modified
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if (libraryItemData.audioLibraryFilesModified.length) {
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let scannedAudioFiles = await AudioFileScanner.executeMediaFileScans(existingLibraryItem.mediaType, libraryItemData, libraryItemData.audioLibraryFilesModified)
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media.audioFiles = media.audioFiles.map((audioFileObj) => {
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let matchedScannedAudioFile = scannedAudioFiles.find(saf => saf.metadata.path === audioFileObj.metadata.path)
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if (!matchedScannedAudioFile) {
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matchedScannedAudioFile = scannedAudioFiles.find(saf => saf.ino === audioFileObj.ino)
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}
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if (matchedScannedAudioFile) {
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scannedAudioFiles = scannedAudioFiles.filter(saf => saf !== matchedScannedAudioFile)
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const audioFile = new AudioFile(audioFileObj)
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audioFile.updateFromScan(matchedScannedAudioFile)
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return audioFile.toJSON()
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}
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return audioFileObj
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})
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// Modified audio files that were not found on the book
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if (scannedAudioFiles.length) {
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media.audioFiles.push(...scannedAudioFiles)
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}
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}
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// Add new audio files scanned in
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if (libraryItemData.audioLibraryFilesAdded.length) {
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const scannedAudioFiles = await AudioFileScanner.executeMediaFileScans(existingLibraryItem.mediaType, libraryItemData, libraryItemData.audioLibraryFilesAdded)
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media.audioFiles.push(...scannedAudioFiles)
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}
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// Add audio library files that are not already set on the book (safety check)
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let audioLibraryFilesToAdd = []
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for (const audioLibraryFile of libraryItemData.audioLibraryFiles) {
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if (!media.audioFiles.some(af => af.ino === audioLibraryFile.ino)) {
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libraryScan.addLog(LogLevel.DEBUG, `Existing audio library file "${audioLibraryFile.metadata.relPath}" was not set on book "${media.title}" so setting it now`)
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audioLibraryFilesToAdd.push(audioLibraryFile)
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}
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}
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if (audioLibraryFilesToAdd.length) {
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const scannedAudioFiles = await AudioFileScanner.executeMediaFileScans(existingLibraryItem.mediaType, libraryItemData, audioLibraryFilesToAdd)
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media.audioFiles.push(...scannedAudioFiles)
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}
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media.audioFiles = AudioFileScanner.runSmartTrackOrder(existingLibraryItem.relPath, media.audioFiles)
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media.duration = 0
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media.audioFiles.forEach((af) => {
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if (!isNaN(af.duration)) {
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media.duration += af.duration
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}
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})
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media.changed('audioFiles', true)
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}
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// Check if cover was removed
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if (media.coverPath && !libraryItemData.imageLibraryFiles.some(lf => lf.metadata.path === media.coverPath)) {
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media.coverPath = null
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hasMediaChanges = true
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}
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// Check if cover is not set and image files were found
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if (!media.coverPath && libraryItemData.imageLibraryFiles.length) {
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// Prefer using a cover image with the name "cover" otherwise use the first image
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const coverMatch = libraryItemData.imageLibraryFiles.find(iFile => /\/cover\.[^.\/]*$/.test(iFile.metadata.path))
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media.coverPath = coverMatch?.metadata.path || libraryItemData.imageLibraryFiles[0].metadata.path
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hasMediaChanges = true
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}
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// Check if ebook was removed
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if (media.ebookFile && (librarySettings.audiobooksOnly || libraryItemData.checkEbookFileRemoved(media.ebookFile))) {
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media.ebookFile = null
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hasMediaChanges = true
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}
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// Check if ebook is not set and ebooks were found
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if (!media.ebookFile && !librarySettings.audiobooksOnly && libraryItemData.ebookLibraryFiles.length) {
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// Prefer to use an epub ebook then fallback to the first ebook found
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let ebookLibraryFile = libraryItemData.ebookLibraryFiles.find(lf => lf.metadata.ext.slice(1).toLowerCase() === 'epub')
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if (!ebookLibraryFile) ebookLibraryFile = libraryItemData.ebookLibraryFiles[0]
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// Ebook file is the same as library file except for additional `ebookFormat`
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ebookLibraryFile.ebookFormat = ebookLibraryFile.metadata.ext.slice(1).toLowerCase()
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media.ebookFile = ebookLibraryFile
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media.changed('ebookFile', true)
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hasMediaChanges = true
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}
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// TODO: When metadata file is stored in /metadata/items/{libraryItemId}.[abs|json] we should load this
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// TODO: store an additional array of metadata keys that the user has changed manually so we know what not to override
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const bookMetadata = await this.getBookMetadataFromScanData(media.audioFiles, libraryItemData, libraryScan)
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let authorsUpdated = false
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const bookAuthorsRemoved = []
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let seriesUpdated = false
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const bookSeriesRemoved = []
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for (const key in bookMetadata) {
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// Ignore unset metadata and empty arrays
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if (bookMetadata[key] === undefined || (Array.isArray(bookMetadata[key]) && !bookMetadata[key].length)) continue
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if (key === 'authors') {
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// Check for authors added
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for (const authorName of bookMetadata.authors) {
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if (!media.authors.some(au => au.name === authorName)) {
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const existingAuthor = Database.libraryFilterData[libraryItemData.libraryId].authors.find(au => au.name === authorName)
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if (existingAuthor) {
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await Database.bookAuthorModel.create({
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bookId: media.id,
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authorId: existingAuthor.id
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})
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libraryScan.addLog(LogLevel.DEBUG, `Updating book "${bookMetadata.title}" added author "${authorName}"`)
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authorsUpdated = true
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} else {
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const newAuthor = await Database.authorModel.create({
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name: authorName,
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lastFirst: parseNameString.nameToLastFirst(authorName),
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libraryId: libraryItemData.libraryId
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})
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await media.addAuthor(newAuthor)
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Database.addAuthorToFilterData(libraryItemData.libraryId, newAuthor.name, newAuthor.id)
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libraryScan.addLog(LogLevel.DEBUG, `Updating book "${bookMetadata.title}" added new author "${authorName}"`)
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authorsUpdated = true
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}
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}
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}
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// Check for authors removed
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for (const author of media.authors) {
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if (!bookMetadata.authors.includes(author.name)) {
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await author.bookAuthor.destroy()
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libraryScan.addLog(LogLevel.DEBUG, `Updating book "${bookMetadata.title}" removed author "${author.name}"`)
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authorsUpdated = true
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bookAuthorsRemoved.push(author.id)
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}
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}
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} else if (key === 'series') {
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// Check for series added
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for (const seriesObj of bookMetadata.series) {
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if (!media.series.some(se => se.name === seriesObj.name)) {
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const existingSeries = Database.libraryFilterData[libraryItemData.libraryId].series.find(se => se.name === seriesObj.name)
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if (existingSeries) {
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await Database.bookSeriesModel.create({
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bookId: media.id,
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seriesId: existingSeries.id,
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sequence: seriesObj.sequence
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})
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libraryScan.addLog(LogLevel.DEBUG, `Updating book "${bookMetadata.title}" added series "${seriesObj.name}"${seriesObj.sequence ? ` with sequence "${seriesObj.sequence}"` : ''}`)
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seriesUpdated = true
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} else {
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const newSeries = await Database.seriesModel.create({
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name: seriesObj.name,
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nameIgnorePrefix: getTitleIgnorePrefix(seriesObj.name),
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libraryId: libraryItemData.libraryId
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})
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await media.addSeries(newSeries, { through: { sequence: seriesObj.sequence } })
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Database.addSeriesToFilterData(libraryItemData.libraryId, newSeries.name, newSeries.id)
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libraryScan.addLog(LogLevel.DEBUG, `Updating book "${bookMetadata.title}" added new series "${seriesObj.name}"${seriesObj.sequence ? ` with sequence "${seriesObj.sequence}"` : ''}`)
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seriesUpdated = true
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}
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}
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}
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// Check for series removed
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for (const series of media.series) {
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if (!bookMetadata.series.some(se => se.name === series.name)) {
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await series.bookSeries.destroy()
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libraryScan.addLog(LogLevel.DEBUG, `Updating book "${bookMetadata.title}" removed series "${series.name}"`)
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seriesUpdated = true
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bookSeriesRemoved.push(series.id)
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}
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}
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} else if (key === 'genres') {
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const existingGenres = media.genres || []
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if (bookMetadata.genres.some(g => !existingGenres.includes(g)) || existingGenres.some(g => !bookMetadata.genres.includes(g))) {
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libraryScan.addLog(LogLevel.DEBUG, `Updating book genres "${existingGenres.join(',')}" => "${bookMetadata.genres.join(',')}" for book "${bookMetadata.title}"`)
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media.genres = bookMetadata.genres
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hasMediaChanges = true
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}
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} else if (key === 'tags') {
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const existingTags = media.tags || []
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if (bookMetadata.tags.some(t => !existingTags.includes(t)) || existingTags.some(t => !bookMetadata.tags.includes(t))) {
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libraryScan.addLog(LogLevel.DEBUG, `Updating book tags "${existingTags.join(',')}" => "${bookMetadata.tags.join(',')}" for book "${bookMetadata.title}"`)
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media.tags = bookMetadata.tags
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hasMediaChanges = true
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}
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} else if (key === 'narrators') {
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const existingNarrators = media.narrators || []
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if (bookMetadata.narrators.some(t => !existingNarrators.includes(t)) || existingNarrators.some(t => !bookMetadata.narrators.includes(t))) {
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libraryScan.addLog(LogLevel.DEBUG, `Updating book narrators "${existingNarrators.join(',')}" => "${bookMetadata.narrators.join(',')}" for book "${bookMetadata.title}"`)
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media.narrators = bookMetadata.narrators
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hasMediaChanges = true
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}
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} else if (key === 'chapters') {
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if (!areEquivalent(media.chapters, bookMetadata.chapters)) {
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libraryScan.addLog(LogLevel.DEBUG, `Updating book chapters for book "${bookMetadata.title}"`)
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media.chapters = bookMetadata.chapters
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hasMediaChanges = true
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}
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} else if (key === 'coverPath') {
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if (media.coverPath && media.coverPath !== bookMetadata.coverPath && !(await fsExtra.pathExists(media.coverPath))) {
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libraryScan.addLog(LogLevel.DEBUG, `Updating book cover "${media.coverPath}" => "${bookMetadata.coverPath}" for book "${bookMetadata.title}" - original cover path does not exist`)
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media.coverPath = bookMetadata.coverPath
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hasMediaChanges = true
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} else if (!media.coverPath) {
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libraryScan.addLog(LogLevel.DEBUG, `Updating book cover "unset" => "${bookMetadata.coverPath}" for book "${bookMetadata.title}"`)
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media.coverPath = bookMetadata.coverPath
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hasMediaChanges = true
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}
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} else if (bookMetadata[key] !== media[key]) {
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libraryScan.addLog(LogLevel.DEBUG, `Updating book ${key} "${media[key]}" => "${bookMetadata[key]}" for book "${bookMetadata.title}"`)
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media[key] = bookMetadata[key]
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hasMediaChanges = true
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}
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}
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// Load authors/series again if updated (for sending back to client)
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if (authorsUpdated) {
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media.authors = await media.getAuthors({
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joinTableAttributes: ['createdAt'],
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order: [
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sequelize.literal(`bookAuthor.createdAt ASC`)
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]
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})
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}
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if (seriesUpdated) {
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media.series = await media.getSeries({
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joinTableAttributes: ['sequence', 'createdAt'],
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order: [
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sequelize.literal(`bookSeries.createdAt ASC`)
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]
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})
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}
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// If no cover then extract cover from audio file if available OR search for cover if enabled in server settings
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if (!media.coverPath) {
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const libraryItemDir = existingLibraryItem.isFile ? null : existingLibraryItem.path
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const extractedCoverPath = await CoverManager.saveEmbeddedCoverArt(media.audioFiles, existingLibraryItem.id, libraryItemDir)
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if (extractedCoverPath) {
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libraryScan.addLog(LogLevel.DEBUG, `Updating book "${bookMetadata.title}" extracted embedded cover art from audio file to path "${extractedCoverPath}"`)
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media.coverPath = extractedCoverPath
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hasMediaChanges = true
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} else if (Database.serverSettings.scannerFindCovers) {
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const authorName = media.authors.map(au => au.name).filter(au => au).join(', ')
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const coverPath = await this.searchForCover(existingLibraryItem.id, libraryItemDir, media.title, authorName, libraryScan)
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if (coverPath) {
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media.coverPath = coverPath
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hasMediaChanges = true
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}
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}
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}
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existingLibraryItem.media = media
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let libraryItemUpdated = false
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// Save Book changes to db
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if (hasMediaChanges) {
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await media.save()
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await this.saveMetadataFile(existingLibraryItem, libraryScan)
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libraryItemUpdated = global.ServerSettings.storeMetadataWithItem && !existingLibraryItem.isFile
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}
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// Check/update the isSupplementary flag on libraryFiles for the LibraryItem
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for (const libraryFile of existingLibraryItem.libraryFiles) {
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if (globals.SupportedEbookTypes.includes(libraryFile.metadata.ext.slice(1).toLowerCase())) {
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if (media.ebookFile && libraryFile.ino === media.ebookFile.ino) {
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if (libraryFile.isSupplementary !== false) {
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libraryFile.isSupplementary = false
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libraryItemUpdated = true
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}
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} else if (libraryFile.isSupplementary !== true) {
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libraryFile.isSupplementary = true
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libraryItemUpdated = true
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}
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}
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}
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if (libraryItemUpdated) {
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existingLibraryItem.changed('libraryFiles', true)
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await existingLibraryItem.save()
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}
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libraryScan.seriesRemovedFromBooks.push(...bookSeriesRemoved)
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libraryScan.authorsRemovedFromBooks.push(...bookAuthorsRemoved)
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return existingLibraryItem
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}
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/**
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*
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* @param {import('./LibraryItemScanData')} libraryItemData
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* @param {import('../models/Library').LibrarySettingsObject} librarySettings
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* @param {LibraryScan} libraryScan
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* @returns {Promise<import('../models/LibraryItem')>}
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*/
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async scanNewBookLibraryItem(libraryItemData, librarySettings, libraryScan) {
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// Scan audio files found
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let scannedAudioFiles = await AudioFileScanner.executeMediaFileScans(libraryItemData.mediaType, libraryItemData, libraryItemData.audioLibraryFiles)
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scannedAudioFiles = AudioFileScanner.runSmartTrackOrder(libraryItemData.relPath, scannedAudioFiles)
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// Find ebook file (prefer epub)
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let ebookLibraryFile = librarySettings.audiobooksOnly ? null : libraryItemData.ebookLibraryFiles.find(lf => lf.metadata.ext.slice(1).toLowerCase() === 'epub') || libraryItemData.ebookLibraryFiles[0]
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// Do not add library items that have no valid audio files and no ebook file
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if (!ebookLibraryFile && !scannedAudioFiles.length) {
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libraryScan.addLog(LogLevel.WARN, `Library item at path "${libraryItemData.relPath}" has no audio files and no ebook file - ignoring`)
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return null
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}
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if (ebookLibraryFile) {
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ebookLibraryFile.ebookFormat = ebookLibraryFile.metadata.ext.slice(1).toLowerCase()
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}
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const bookMetadata = await this.getBookMetadataFromScanData(scannedAudioFiles, libraryItemData, libraryScan)
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bookMetadata.explicit = !!bookMetadata.explicit // Ensure boolean
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bookMetadata.abridged = !!bookMetadata.abridged // Ensure boolean
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let duration = 0
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scannedAudioFiles.forEach((af) => duration += (!isNaN(af.duration) ? Number(af.duration) : 0))
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const bookObject = {
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...bookMetadata,
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audioFiles: scannedAudioFiles,
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ebookFile: ebookLibraryFile || null,
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duration,
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bookAuthors: [],
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bookSeries: []
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}
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if (bookMetadata.authors.length) {
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for (const authorName of bookMetadata.authors) {
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const matchingAuthor = Database.libraryFilterData[libraryItemData.libraryId].authors.find(au => au.name === authorName)
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if (matchingAuthor) {
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bookObject.bookAuthors.push({
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authorId: matchingAuthor.id
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})
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} else {
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// New author
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bookObject.bookAuthors.push({
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author: {
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libraryId: libraryItemData.libraryId,
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name: authorName,
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lastFirst: parseNameString.nameToLastFirst(authorName)
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}
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})
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}
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}
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}
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if (bookMetadata.series.length) {
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for (const seriesObj of bookMetadata.series) {
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if (!seriesObj.name) continue
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const matchingSeries = Database.libraryFilterData[libraryItemData.libraryId].series.find(se => se.name === seriesObj.name)
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if (matchingSeries) {
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bookObject.bookSeries.push({
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seriesId: matchingSeries.id,
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sequence: seriesObj.sequence
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})
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} else {
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bookObject.bookSeries.push({
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sequence: seriesObj.sequence,
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series: {
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name: seriesObj.name,
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nameIgnorePrefix: getTitleIgnorePrefix(seriesObj.name),
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libraryId: libraryItemData.libraryId
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}
|
|
})
|
|
}
|
|
}
|
|
}
|
|
|
|
const libraryItemObj = libraryItemData.libraryItemObject
|
|
libraryItemObj.id = uuidv4() // Generate library item id ahead of time to use for saving extracted cover image
|
|
libraryItemObj.isMissing = false
|
|
libraryItemObj.isInvalid = false
|
|
libraryItemObj.extraData = {}
|
|
|
|
// Set isSupplementary flag on ebook library files
|
|
for (const libraryFile of libraryItemObj.libraryFiles) {
|
|
if (globals.SupportedEbookTypes.includes(libraryFile.metadata.ext.slice(1).toLowerCase())) {
|
|
libraryFile.isSupplementary = libraryFile.ino !== ebookLibraryFile?.ino
|
|
}
|
|
}
|
|
|
|
// If cover was not found in folder then check embedded covers in audio files OR search for cover
|
|
if (!bookObject.coverPath) {
|
|
const libraryItemDir = libraryItemObj.isFile ? null : libraryItemObj.path
|
|
// Extract and save embedded cover art
|
|
const extractedCoverPath = await CoverManager.saveEmbeddedCoverArt(scannedAudioFiles, libraryItemObj.id, libraryItemDir)
|
|
if (extractedCoverPath) {
|
|
bookObject.coverPath = extractedCoverPath
|
|
} else if (Database.serverSettings.scannerFindCovers) {
|
|
const authorName = bookMetadata.authors.join(', ')
|
|
bookObject.coverPath = await this.searchForCover(libraryItemObj.id, libraryItemDir, bookObject.title, authorName, libraryScan)
|
|
}
|
|
}
|
|
|
|
libraryItemObj.book = bookObject
|
|
const libraryItem = await Database.libraryItemModel.create(libraryItemObj, {
|
|
include: {
|
|
model: Database.bookModel,
|
|
include: [
|
|
{
|
|
model: Database.bookSeriesModel,
|
|
include: {
|
|
model: Database.seriesModel
|
|
}
|
|
},
|
|
{
|
|
model: Database.bookAuthorModel,
|
|
include: {
|
|
model: Database.authorModel
|
|
}
|
|
}
|
|
]
|
|
}
|
|
})
|
|
|
|
// Update library filter data
|
|
if (libraryItem.book.bookSeries?.length) {
|
|
for (const bs of libraryItem.book.bookSeries) {
|
|
if (bs.series) {
|
|
Database.addSeriesToFilterData(libraryItemData.libraryId, bs.series.name, bs.series.id)
|
|
}
|
|
}
|
|
}
|
|
if (libraryItem.book.bookAuthors?.length) {
|
|
for (const ba of libraryItem.book.bookAuthors) {
|
|
if (ba.author) {
|
|
Database.addAuthorToFilterData(libraryItemData.libraryId, ba.author.name, ba.author.id)
|
|
}
|
|
}
|
|
}
|
|
Database.addNarratorsToFilterData(libraryItemData.libraryId, libraryItem.book.narrators)
|
|
Database.addGenresToFilterData(libraryItemData.libraryId, libraryItem.book.genres)
|
|
Database.addTagsToFilterData(libraryItemData.libraryId, libraryItem.book.tags)
|
|
Database.addPublisherToFilterData(libraryItemData.libraryId, libraryItem.book.publisher)
|
|
Database.addLanguageToFilterData(libraryItemData.libraryId, libraryItem.book.language)
|
|
|
|
// Load for emitting to client
|
|
libraryItem.media = await libraryItem.getMedia({
|
|
include: [
|
|
{
|
|
model: Database.authorModel,
|
|
through: {
|
|
attributes: ['id', 'createdAt']
|
|
}
|
|
},
|
|
{
|
|
model: Database.seriesModel,
|
|
through: {
|
|
attributes: ['id', 'sequence', 'createdAt']
|
|
}
|
|
}
|
|
],
|
|
order: [
|
|
[Database.authorModel, Database.bookAuthorModel, 'createdAt', 'ASC'],
|
|
[Database.seriesModel, 'bookSeries', 'createdAt', 'ASC']
|
|
]
|
|
})
|
|
|
|
await this.saveMetadataFile(libraryItem, libraryScan)
|
|
if (global.ServerSettings.storeMetadataWithItem && !libraryItem.isFile) {
|
|
libraryItem.changed('libraryFiles', true)
|
|
await libraryItem.save()
|
|
}
|
|
|
|
return libraryItem
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {import('../models/Book').AudioFileObject[]} audioFiles
|
|
* @param {import('./LibraryItemScanData')} libraryItemData
|
|
* @param {LibraryScan} libraryScan
|
|
* @returns {Promise<BookMetadataObject>}
|
|
*/
|
|
async getBookMetadataFromScanData(audioFiles, libraryItemData, libraryScan) {
|
|
// First set book metadata from folder/file names
|
|
const bookMetadata = {
|
|
title: libraryItemData.mediaMetadata.title,
|
|
titleIgnorePrefix: getTitleIgnorePrefix(libraryItemData.mediaMetadata.title),
|
|
subtitle: libraryItemData.mediaMetadata.subtitle || undefined,
|
|
publishedYear: libraryItemData.mediaMetadata.publishedYear || undefined,
|
|
publisher: undefined,
|
|
description: undefined,
|
|
isbn: undefined,
|
|
asin: undefined,
|
|
language: undefined,
|
|
narrators: parseNameString.parse(libraryItemData.mediaMetadata.narrators)?.names || [],
|
|
genres: [],
|
|
tags: [],
|
|
authors: parseNameString.parse(libraryItemData.mediaMetadata.author)?.names || [],
|
|
series: [],
|
|
chapters: [],
|
|
explicit: undefined,
|
|
abridged: undefined,
|
|
coverPath: undefined
|
|
}
|
|
if (libraryItemData.mediaMetadata.series) {
|
|
bookMetadata.series.push({
|
|
name: libraryItemData.mediaMetadata.series,
|
|
sequence: libraryItemData.mediaMetadata.sequence || null
|
|
})
|
|
}
|
|
|
|
// Fill in or override book metadata from audio file meta tags
|
|
if (audioFiles.length) {
|
|
const MetadataMapArray = [
|
|
{
|
|
tag: 'tagComposer',
|
|
key: 'narrators'
|
|
},
|
|
{
|
|
tag: 'tagDescription',
|
|
altTag: 'tagComment',
|
|
key: 'description'
|
|
},
|
|
{
|
|
tag: 'tagPublisher',
|
|
key: 'publisher'
|
|
},
|
|
{
|
|
tag: 'tagDate',
|
|
key: 'publishedYear'
|
|
},
|
|
{
|
|
tag: 'tagSubtitle',
|
|
key: 'subtitle'
|
|
},
|
|
{
|
|
tag: 'tagAlbum',
|
|
altTag: 'tagTitle',
|
|
key: 'title',
|
|
},
|
|
{
|
|
tag: 'tagArtist',
|
|
altTag: 'tagAlbumArtist',
|
|
key: 'authors'
|
|
},
|
|
{
|
|
tag: 'tagGenre',
|
|
key: 'genres'
|
|
},
|
|
{
|
|
tag: 'tagSeries',
|
|
key: 'series'
|
|
},
|
|
{
|
|
tag: 'tagIsbn',
|
|
key: 'isbn'
|
|
},
|
|
{
|
|
tag: 'tagLanguage',
|
|
key: 'language'
|
|
},
|
|
{
|
|
tag: 'tagASIN',
|
|
key: 'asin'
|
|
}
|
|
]
|
|
const overrideExistingDetails = Database.serverSettings.scannerPreferAudioMetadata
|
|
const firstScannedFile = audioFiles[0]
|
|
const audioFileMetaTags = firstScannedFile.metaTags
|
|
MetadataMapArray.forEach((mapping) => {
|
|
let value = audioFileMetaTags[mapping.tag]
|
|
if (!value && mapping.altTag) {
|
|
value = audioFileMetaTags[mapping.altTag]
|
|
}
|
|
|
|
if (value && typeof value === 'string') {
|
|
value = value.trim() // Trim whitespace
|
|
|
|
if (mapping.key === 'narrators' && (!bookMetadata.narrators.length || overrideExistingDetails)) {
|
|
bookMetadata.narrators = parseNameString.parse(value)?.names || []
|
|
} else if (mapping.key === 'authors' && (!bookMetadata.authors.length || overrideExistingDetails)) {
|
|
bookMetadata.authors = parseNameString.parse(value)?.names || []
|
|
} else if (mapping.key === 'genres' && (!bookMetadata.genres.length || overrideExistingDetails)) {
|
|
bookMetadata.genres = this.parseGenresString(value)
|
|
} else if (mapping.key === 'series' && (!bookMetadata.series.length || overrideExistingDetails)) {
|
|
bookMetadata.series = [
|
|
{
|
|
name: value,
|
|
sequence: audioFileMetaTags.tagSeriesPart || null
|
|
}
|
|
]
|
|
} else if (!bookMetadata[mapping.key] || overrideExistingDetails) {
|
|
bookMetadata[mapping.key] = value
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
// If desc.txt in library item folder then use this for description
|
|
if (libraryItemData.descTxtLibraryFile) {
|
|
const description = await readTextFile(libraryItemData.descTxtLibraryFile.metadata.path)
|
|
if (description.trim()) bookMetadata.description = description.trim()
|
|
}
|
|
|
|
// If reader.txt in library item folder then use this for narrator
|
|
if (libraryItemData.readerTxtLibraryFile) {
|
|
let narrator = await readTextFile(libraryItemData.readerTxtLibraryFile.metadata.path)
|
|
narrator = narrator.split(/\r?\n/)[0]?.trim() || '' // Only use first line
|
|
if (narrator) {
|
|
bookMetadata.narrators = parseNameString.parse(narrator)?.names || []
|
|
}
|
|
}
|
|
|
|
// If opf file is found look for metadata
|
|
if (libraryItemData.metadataOpfLibraryFile) {
|
|
const xmlText = await readTextFile(libraryItemData.metadataOpfLibraryFile.metadata.path)
|
|
const opfMetadata = xmlText ? await parseOpfMetadataXML(xmlText) : null
|
|
if (opfMetadata) {
|
|
const opfMetadataOverrideDetails = Database.serverSettings.scannerPreferOpfMetadata
|
|
for (const key in opfMetadata) {
|
|
if (key === 'tags') { // Add tags only if tags are empty
|
|
if (opfMetadata.tags.length && (!bookMetadata.tags.length || opfMetadataOverrideDetails)) {
|
|
bookMetadata.tags = opfMetadata.tags
|
|
}
|
|
} else if (key === 'genres') { // Add genres only if genres are empty
|
|
if (opfMetadata.genres.length && (!bookMetadata.genres.length || opfMetadataOverrideDetails)) {
|
|
bookMetadata.genres = opfMetadata.genres
|
|
}
|
|
} else if (key === 'authors') {
|
|
if (opfMetadata.authors?.length && (!bookMetadata.authors.length || opfMetadataOverrideDetails)) {
|
|
bookMetadata.authors = opfMetadata.authors
|
|
}
|
|
} else if (key === 'narrators') {
|
|
if (opfMetadata.narrators?.length && (!bookMetadata.narrators.length || opfMetadataOverrideDetails)) {
|
|
bookMetadata.narrators = opfMetadata.narrators
|
|
}
|
|
} else if (key === 'series') {
|
|
if (opfMetadata.series && (!bookMetadata.series.length || opfMetadataOverrideDetails)) {
|
|
bookMetadata.series = [{
|
|
name: opfMetadata.series,
|
|
sequence: opfMetadata.sequence || null
|
|
}]
|
|
}
|
|
} else if (opfMetadata[key] && (!bookMetadata[key] || opfMetadataOverrideDetails)) {
|
|
bookMetadata[key] = opfMetadata[key]
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// If metadata.json or metadata.abs use this for metadata
|
|
const metadataLibraryFile = libraryItemData.metadataJsonLibraryFile || libraryItemData.metadataAbsLibraryFile
|
|
const metadataText = metadataLibraryFile ? await readTextFile(metadataLibraryFile.metadata.path) : null
|
|
if (metadataText) {
|
|
libraryScan.addLog(LogLevel.INFO, `Found metadata file "${metadataLibraryFile.metadata.path}" - preferring`)
|
|
let abMetadata = null
|
|
if (!!libraryItemData.metadataJsonLibraryFile) {
|
|
abMetadata = abmetadataGenerator.parseJson(metadataText)
|
|
} else {
|
|
abMetadata = abmetadataGenerator.parse(metadataText, 'book')
|
|
}
|
|
|
|
if (abMetadata) {
|
|
if (abMetadata.tags?.length) {
|
|
bookMetadata.tags = abMetadata.tags
|
|
}
|
|
if (abMetadata.chapters?.length) {
|
|
bookMetadata.chapters = abMetadata.chapters
|
|
}
|
|
for (const key in abMetadata.metadata) {
|
|
if (abMetadata.metadata[key] === undefined) continue
|
|
bookMetadata[key] = abMetadata.metadata[key]
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set chapters from audio files if not already set
|
|
if (!bookMetadata.chapters.length) {
|
|
bookMetadata.chapters = this.getChaptersFromAudioFiles(bookMetadata.title, audioFiles, libraryScan)
|
|
}
|
|
|
|
// Set cover from library file if one is found otherwise check audiofile
|
|
if (libraryItemData.imageLibraryFiles.length) {
|
|
const coverMatch = libraryItemData.imageLibraryFiles.find(iFile => /\/cover\.[^.\/]*$/.test(iFile.metadata.path))
|
|
bookMetadata.coverPath = coverMatch?.metadata.path || libraryItemData.imageLibraryFiles[0].metadata.path
|
|
}
|
|
|
|
bookMetadata.titleIgnorePrefix = getTitleIgnorePrefix(bookMetadata.title)
|
|
|
|
return bookMetadata
|
|
}
|
|
|
|
/**
|
|
* Parse a genre string into multiple genres
|
|
* @example "Fantasy;Sci-Fi;History" => ["Fantasy", "Sci-Fi", "History"]
|
|
* @param {string} genreTag
|
|
* @returns {string[]}
|
|
*/
|
|
parseGenresString(genreTag) {
|
|
if (!genreTag?.length) return []
|
|
const separators = ['/', '//', ';']
|
|
for (let i = 0; i < separators.length; i++) {
|
|
if (genreTag.includes(separators[i])) {
|
|
return genreTag.split(separators[i]).map(genre => genre.trim()).filter(g => !!g)
|
|
}
|
|
}
|
|
return [genreTag]
|
|
}
|
|
|
|
/**
|
|
* @param {string} bookTitle
|
|
* @param {AudioFile[]} audioFiles
|
|
* @param {LibraryScan} libraryScan
|
|
* @returns {import('../models/Book').ChapterObject[]}
|
|
*/
|
|
getChaptersFromAudioFiles(bookTitle, audioFiles, libraryScan) {
|
|
if (!audioFiles.length) return []
|
|
|
|
// If overdrive media markers are present and preferred, use those instead
|
|
if (Database.serverSettings.scannerPreferOverdriveMediaMarker) {
|
|
const overdriveChapters = parseOverdriveMediaMarkersAsChapters(audioFiles)
|
|
if (overdriveChapters) {
|
|
libraryScan.addLog(LogLevel.DEBUG, 'Overdrive Media Markers and preference found! Using these for chapter definitions')
|
|
|
|
return overdriveChapters
|
|
}
|
|
}
|
|
|
|
let chapters = []
|
|
|
|
// If first audio file has embedded chapters then use embedded chapters
|
|
if (audioFiles[0].chapters?.length) {
|
|
// If all files chapters are the same, then only make chapters for the first file
|
|
if (
|
|
audioFiles.length === 1 ||
|
|
audioFiles.length > 1 &&
|
|
audioFiles[0].chapters.length === audioFiles[1].chapters?.length &&
|
|
audioFiles[0].chapters.every((c, i) => c.title === audioFiles[1].chapters[i].title)
|
|
) {
|
|
libraryScan.addLog(LogLevel.DEBUG, `setChapters: Using embedded chapters in first audio file ${audioFiles[0].metadata?.path}`)
|
|
chapters = audioFiles[0].chapters.map((c) => ({ ...c }))
|
|
} else {
|
|
libraryScan.addLog(LogLevel.DEBUG, `setChapters: Using embedded chapters from all audio files ${audioFiles[0].metadata?.path}`)
|
|
let currChapterId = 0
|
|
let currStartTime = 0
|
|
|
|
audioFiles.forEach((file) => {
|
|
if (file.duration) {
|
|
const afChapters = file.chapters?.map((c) => ({
|
|
...c,
|
|
id: c.id + currChapterId,
|
|
start: c.start + currStartTime,
|
|
end: c.end + currStartTime,
|
|
})) ?? []
|
|
chapters = chapters.concat(afChapters)
|
|
|
|
currChapterId += file.chapters?.length ?? 0
|
|
currStartTime += file.duration
|
|
}
|
|
})
|
|
return chapters
|
|
}
|
|
} else if (audioFiles.length > 1) {
|
|
const preferAudioMetadata = !!Database.serverSettings.scannerPreferAudioMetadata
|
|
|
|
// Build chapters from audio files
|
|
let currChapterId = 0
|
|
let currStartTime = 0
|
|
audioFiles.forEach((file) => {
|
|
if (file.duration) {
|
|
let title = file.metadata.filename ? Path.basename(file.metadata.filename, Path.extname(file.metadata.filename)) : `Chapter ${currChapterId}`
|
|
|
|
// When prefer audio metadata server setting is set then use ID3 title tag as long as it is not the same as the book title
|
|
if (preferAudioMetadata && file.metaTags?.tagTitle && file.metaTags?.tagTitle !== bookTitle) {
|
|
title = file.metaTags.tagTitle
|
|
}
|
|
|
|
chapters.push({
|
|
id: currChapterId++,
|
|
start: currStartTime,
|
|
end: currStartTime + file.duration,
|
|
title
|
|
})
|
|
currStartTime += file.duration
|
|
}
|
|
})
|
|
}
|
|
return chapters
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {import('../models/LibraryItem')} libraryItem
|
|
* @param {LibraryScan} libraryScan
|
|
* @returns {Promise}
|
|
*/
|
|
async saveMetadataFile(libraryItem, libraryScan) {
|
|
let metadataPath = Path.join(global.MetadataPath, 'items', libraryItem.id)
|
|
let storeMetadataWithItem = global.ServerSettings.storeMetadataWithItem
|
|
if (storeMetadataWithItem && !libraryItem.isFile) {
|
|
metadataPath = libraryItem.path
|
|
} else {
|
|
// Make sure metadata book dir exists
|
|
storeMetadataWithItem = false
|
|
await fsExtra.ensureDir(metadataPath)
|
|
}
|
|
|
|
const metadataFileFormat = global.ServerSettings.metadataFileFormat
|
|
const metadataFilePath = Path.join(metadataPath, `metadata.${metadataFileFormat}`)
|
|
if (metadataFileFormat === 'json') {
|
|
// Remove metadata.abs if it exists
|
|
if (await fsExtra.pathExists(Path.join(metadataPath, `metadata.abs`))) {
|
|
libraryScan.addLog(LogLevel.DEBUG, `Removing metadata.abs for item "${libraryItem.media.title}"`)
|
|
await fsExtra.remove(Path.join(metadataPath, `metadata.abs`))
|
|
libraryItem.libraryFiles = libraryItem.libraryFiles.filter(lf => lf.metadata.path !== filePathToPOSIX(Path.join(metadataPath, `metadata.abs`)))
|
|
}
|
|
|
|
// TODO: Update to not use `metadata` so it fits the updated model
|
|
const jsonObject = {
|
|
tags: libraryItem.media.tags || [],
|
|
chapters: libraryItem.media.chapters?.map(c => ({ ...c })) || [],
|
|
metadata: {
|
|
title: libraryItem.media.title,
|
|
subtitle: libraryItem.media.subtitle,
|
|
authors: libraryItem.media.authors.map(a => a.name),
|
|
narrators: libraryItem.media.narrators,
|
|
series: libraryItem.media.series.map(se => {
|
|
const sequence = se.bookSeries?.sequence || ''
|
|
if (!sequence) return se.name
|
|
return `${se.name} #${sequence}`
|
|
}),
|
|
genres: libraryItem.media.genres || [],
|
|
publishedYear: libraryItem.media.publishedYear,
|
|
publishedDate: libraryItem.media.publishedDate,
|
|
publisher: libraryItem.media.publisher,
|
|
description: libraryItem.media.description,
|
|
isbn: libraryItem.media.isbn,
|
|
asin: libraryItem.media.asin,
|
|
language: libraryItem.media.language,
|
|
explicit: !!libraryItem.media.explicit,
|
|
abridged: !!libraryItem.media.abridged
|
|
}
|
|
}
|
|
return fsExtra.writeFile(metadataFilePath, JSON.stringify(jsonObject, null, 2)).then(async () => {
|
|
// Add metadata.json to libraryFiles array if it is new
|
|
let metadataLibraryFile = libraryItem.libraryFiles.find(lf => lf.metadata.path === filePathToPOSIX(metadataFilePath))
|
|
if (storeMetadataWithItem) {
|
|
if (!metadataLibraryFile) {
|
|
const newLibraryFile = new LibraryFile()
|
|
await newLibraryFile.setDataFromPath(metadataFilePath, `metadata.json`)
|
|
metadataLibraryFile = newLibraryFile.toJSON()
|
|
libraryItem.libraryFiles.push(metadataLibraryFile)
|
|
} else {
|
|
const fileTimestamps = await getFileTimestampsWithIno(metadataFilePath)
|
|
if (fileTimestamps) {
|
|
metadataLibraryFile.metadata.mtimeMs = fileTimestamps.mtimeMs
|
|
metadataLibraryFile.metadata.ctimeMs = fileTimestamps.ctimeMs
|
|
metadataLibraryFile.metadata.size = fileTimestamps.size
|
|
metadataLibraryFile.ino = fileTimestamps.ino
|
|
}
|
|
}
|
|
const libraryItemDirTimestamps = await getFileTimestampsWithIno(libraryItem.path)
|
|
if (libraryItemDirTimestamps) {
|
|
libraryItem.mtime = libraryItemDirTimestamps.mtimeMs
|
|
libraryItem.ctime = libraryItemDirTimestamps.ctimeMs
|
|
let size = 0
|
|
libraryItem.libraryFiles.forEach((lf) => size += (!isNaN(lf.metadata.size) ? Number(lf.metadata.size) : 0))
|
|
libraryItem.size = size
|
|
}
|
|
}
|
|
|
|
libraryScan.addLog(LogLevel.DEBUG, `Success saving abmetadata to "${metadataFilePath}"`)
|
|
|
|
return metadataLibraryFile
|
|
}).catch((error) => {
|
|
libraryScan.addLog(LogLevel.ERROR, `Failed to save json file at "${metadataFilePath}"`, error)
|
|
return null
|
|
})
|
|
} else {
|
|
// Remove metadata.json if it exists
|
|
if (await fsExtra.pathExists(Path.join(metadataPath, `metadata.json`))) {
|
|
libraryScan.addLog(LogLevel.DEBUG, `Removing metadata.json for item "${libraryItem.media.title}"`)
|
|
await fsExtra.remove(Path.join(metadataPath, `metadata.json`))
|
|
libraryItem.libraryFiles = libraryItem.libraryFiles.filter(lf => lf.metadata.path !== filePathToPOSIX(Path.join(metadataPath, `metadata.json`)))
|
|
}
|
|
|
|
return abmetadataGenerator.generateFromNewModel(libraryItem, metadataFilePath).then(async (success) => {
|
|
if (!success) {
|
|
libraryScan.addLog(LogLevel.ERROR, `Failed saving abmetadata to "${metadataFilePath}"`)
|
|
return null
|
|
}
|
|
// Add metadata.abs to libraryFiles array if it is new
|
|
let metadataLibraryFile = libraryItem.libraryFiles.find(lf => lf.metadata.path === filePathToPOSIX(metadataFilePath))
|
|
if (storeMetadataWithItem) {
|
|
if (!metadataLibraryFile) {
|
|
const newLibraryFile = new LibraryFile()
|
|
await newLibraryFile.setDataFromPath(metadataFilePath, `metadata.abs`)
|
|
metadataLibraryFile = newLibraryFile.toJSON()
|
|
libraryItem.libraryFiles.push(metadataLibraryFile)
|
|
} else {
|
|
const fileTimestamps = await getFileTimestampsWithIno(metadataFilePath)
|
|
if (fileTimestamps) {
|
|
metadataLibraryFile.metadata.mtimeMs = fileTimestamps.mtimeMs
|
|
metadataLibraryFile.metadata.ctimeMs = fileTimestamps.ctimeMs
|
|
metadataLibraryFile.metadata.size = fileTimestamps.size
|
|
metadataLibraryFile.ino = fileTimestamps.ino
|
|
}
|
|
}
|
|
const libraryItemDirTimestamps = await getFileTimestampsWithIno(libraryItem.path)
|
|
if (libraryItemDirTimestamps) {
|
|
libraryItem.mtime = libraryItemDirTimestamps.mtimeMs
|
|
libraryItem.ctime = libraryItemDirTimestamps.ctimeMs
|
|
let size = 0
|
|
libraryItem.libraryFiles.forEach((lf) => size += (!isNaN(lf.metadata.size) ? Number(lf.metadata.size) : 0))
|
|
libraryItem.size = size
|
|
}
|
|
}
|
|
|
|
libraryScan.addLog(LogLevel.DEBUG, `Success saving abmetadata to "${metadataFilePath}"`)
|
|
return metadataLibraryFile
|
|
})
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check authors that were removed from a book and remove them if they no longer have any books
|
|
* keep authors without books that have a asin, description or imagePath
|
|
* @param {string} libraryId
|
|
* @param {import('./ScanLogger')} scanLogger
|
|
* @returns {Promise}
|
|
*/
|
|
async checkAuthorsRemovedFromBooks(libraryId, scanLogger) {
|
|
const bookAuthorsToRemove = (await Database.authorModel.findAll({
|
|
where: [
|
|
{
|
|
id: scanLogger.authorsRemovedFromBooks,
|
|
asin: {
|
|
[sequelize.Op.or]: [null, ""]
|
|
},
|
|
description: {
|
|
[sequelize.Op.or]: [null, ""]
|
|
},
|
|
imagePath: {
|
|
[sequelize.Op.or]: [null, ""]
|
|
}
|
|
},
|
|
sequelize.where(sequelize.literal('(SELECT count(*) FROM bookAuthors ba WHERE ba.authorId = author.id)'), 0)
|
|
],
|
|
attributes: ['id'],
|
|
raw: true
|
|
})).map(au => au.id)
|
|
if (bookAuthorsToRemove.length) {
|
|
await Database.authorModel.destroy({
|
|
where: {
|
|
id: bookAuthorsToRemove
|
|
}
|
|
})
|
|
bookAuthorsToRemove.forEach((authorId) => {
|
|
Database.removeAuthorFromFilterData(libraryId, authorId)
|
|
// TODO: Clients were expecting full author in payload but its unnecessary
|
|
SocketAuthority.emitter('author_removed', { id: authorId, libraryId })
|
|
})
|
|
scanLogger.addLog(LogLevel.INFO, `Removed ${bookAuthorsToRemove.length} authors`)
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check series that were removed from books and remove them if they no longer have any books
|
|
* @param {string} libraryId
|
|
* @param {import('./ScanLogger')} scanLogger
|
|
* @returns {Promise}
|
|
*/
|
|
async checkSeriesRemovedFromBooks(libraryId, scanLogger) {
|
|
const bookSeriesToRemove = (await Database.seriesModel.findAll({
|
|
where: [
|
|
{
|
|
id: scanLogger.seriesRemovedFromBooks
|
|
},
|
|
sequelize.where(sequelize.literal('(SELECT count(*) FROM bookSeries bs WHERE bs.seriesId = series.id)'), 0)
|
|
],
|
|
attributes: ['id'],
|
|
raw: true
|
|
})).map(se => se.id)
|
|
if (bookSeriesToRemove.length) {
|
|
await Database.seriesModel.destroy({
|
|
where: {
|
|
id: bookSeriesToRemove
|
|
}
|
|
})
|
|
bookSeriesToRemove.forEach((seriesId) => {
|
|
Database.removeSeriesFromFilterData(libraryId, seriesId)
|
|
SocketAuthority.emitter('series_removed', { id: seriesId, libraryId })
|
|
})
|
|
scanLogger.addLog(LogLevel.INFO, `Removed ${bookSeriesToRemove.length} series`)
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Search cover provider for matching cover
|
|
* @param {string} libraryItemId
|
|
* @param {string} libraryItemPath null if book isFile
|
|
* @param {string} title
|
|
* @param {string} author
|
|
* @param {LibraryScan} libraryScan
|
|
* @returns {Promise<string>} path to downloaded cover or null if no cover found
|
|
*/
|
|
async searchForCover(libraryItemId, libraryItemPath, title, author, libraryScan) {
|
|
const options = {
|
|
titleDistance: 2,
|
|
authorDistance: 2
|
|
}
|
|
const results = await BookFinder.findCovers(Database.serverSettings.scannerCoverProvider, title, author, options)
|
|
if (results.length) {
|
|
libraryScan.addLog(LogLevel.DEBUG, `Found best cover for "${title}"`)
|
|
|
|
// If the first cover result fails, attempt to download the second
|
|
for (let i = 0; i < results.length && i < 2; i++) {
|
|
|
|
// Downloads and updates the book cover
|
|
const result = await CoverManager.downloadCoverFromUrlNew(results[i], libraryItemId, libraryItemPath)
|
|
|
|
if (result.error) {
|
|
Logger.error(`[Scanner] Failed to download cover from url "${results[i]}" | Attempt ${i + 1}`, result.error)
|
|
} else if (result.cover) {
|
|
return result.cover
|
|
}
|
|
}
|
|
}
|
|
return null
|
|
}
|
|
}
|
|
module.exports = new BookScanner() |