audiobookshelf/server/objects/entities/Book.js

317 lines
11 KiB
JavaScript

const Logger = require('../../Logger')
const BookMetadata = require('../metadata/BookMetadata')
const AudioFile = require('../files/AudioFile')
const EBookFile = require('../files/EBookFile')
const abmetadataGenerator = require('../../utils/abmetadataGenerator')
const { areEquivalent, copyValue } = require('../../utils/index')
const { parseOpfMetadataXML } = require('../../utils/parseOpfMetadata')
const { readTextFile } = require('../../utils/fileUtils')
class Book {
constructor(book) {
this.metadata = null
this.coverPath = null
this.tags = []
this.audioFiles = []
this.ebookFiles = []
this.chapters = []
this.missingParts = []
this.lastCoverSearch = null
this.lastCoverSearchQuery = null
if (book) {
this.construct(book)
}
}
construct(book) {
this.metadata = new BookMetadata(book.metadata)
this.coverPath = book.coverPath
this.tags = [...book.tags]
this.audioFiles = book.audioFiles.map(f => new AudioFile(f))
this.ebookFiles = book.ebookFiles.map(f => new EBookFile(f))
this.chapters = book.chapters.map(c => ({ ...c }))
this.missingParts = book.missingParts ? [...book.missingParts] : []
this.lastCoverSearch = book.lastCoverSearch || null
this.lastCoverSearchQuery = book.lastCoverSearchQuery || null
}
toJSON() {
return {
metadata: this.metadata.toJSON(),
coverPath: this.coverPath,
tags: [...this.tags],
audioFiles: this.audioFiles.map(f => f.toJSON()),
ebookFiles: this.ebookFiles.map(f => f.toJSON()),
chapters: this.chapters.map(c => ({ ...c })),
missingParts: [...this.missingParts]
}
}
toJSONMinified() {
return {
metadata: this.metadata.toJSON(),
coverPath: this.coverPath,
tags: [...this.tags],
numTracks: this.tracks.length,
numAudioFiles: this.audioFiles.length,
numEbooks: this.ebookFiles.length,
numChapters: this.chapters.length,
numMissingParts: this.missingParts.length,
duration: this.duration,
size: this.size
}
}
toJSONExpanded() {
return {
metadata: this.metadata.toJSONExpanded(),
coverPath: this.coverPath,
tags: [...this.tags],
audioFiles: this.audioFiles.map(f => f.toJSON()),
ebookFiles: this.ebookFiles.map(f => f.toJSON()),
chapters: this.chapters.map(c => ({ ...c })),
duration: this.duration,
size: this.size,
tracks: this.tracks.map(t => t.toJSON()),
missingParts: [...this.missingParts]
}
}
get tracks() {
return this.audioFiles.filter(af => !af.exclude && !af.invalid)
}
get duration() {
var total = 0
this.tracks.forEach((track) => total += track.duration)
return total
}
get size() {
var total = 0
this.audioFiles.forEach((af) => total += af.metadata.size)
return total
}
get hasMediaFiles() {
return !!(this.tracks.length + this.ebookFiles.length)
}
get shouldSearchForCover() {
if (this.coverPath) return false
if (!this.lastCoverSearch || this.metadata.coverSearchQuery !== this.lastCoverSearchQuery) return true
return (Date.now() - this.lastCoverSearch) > 1000 * 60 * 60 * 24 * 7 // 7 day
}
get hasEmbeddedCoverArt() {
return this.audioFiles.some(af => af.embeddedCoverArt)
}
update(payload) {
var json = this.toJSON()
var hasUpdates = false
for (const key in json) {
if (payload[key] !== undefined) {
if (key === 'metadata') {
if (this.metadata.update(payload.metadata)) {
hasUpdates = true
}
} else if (!areEquivalent(payload[key], json[key])) {
this[key] = copyValue(payload[key])
Logger.debug('[Book] Key updated', key, this[key])
hasUpdates = true
}
}
}
return hasUpdates
}
updateCover(coverPath) {
coverPath = coverPath.replace(/\\/g, '/')
if (this.coverPath === coverPath) return false
this.coverPath = coverPath
return true
}
checkUpdateMissingTracks() {
var currMissingParts = (this.missingParts || []).join(',') || ''
var current_index = 1
var missingParts = []
for (let i = 0; i < this.tracks.length; i++) {
var _track = this.tracks[i]
if (_track.index > current_index) {
var num_parts_missing = _track.index - current_index
for (let x = 0; x < num_parts_missing && x < 9999; x++) {
missingParts.push(current_index + x)
}
}
current_index = _track.index + 1
}
this.missingParts = missingParts
var newMissingParts = (this.missingParts || []).join(',') || ''
var wasUpdated = newMissingParts !== currMissingParts
if (wasUpdated && this.missingParts.length) {
Logger.info(`[Book] "${this.metadata.title}" has ${missingParts.length} missing parts`)
}
return wasUpdated
}
removeFileWithInode(inode) {
if (this.audioFiles.some(af => af.ino === inode)) {
this.audioFiles = this.audioFiles.filter(af => af.ino !== inode)
return true
}
if (this.ebookFiles.some(ef => ef.ino === inode)) {
this.ebookFiles = this.ebookFiles.filter(ef => ef.ino !== inode)
return true
}
return false
}
findFileWithInode(inode) {
var audioFile = this.audioFiles.find(af => af.ino == inode)
if (audioFile) return audioFile
var ebookFile = this.ebookFiles.find(ef => ef.inode == inode)
if (ebookFile) return ebookFile
return null
}
updateLastCoverSearch(coverWasFound) {
this.lastCoverSearch = coverWasFound ? null : Date.now()
this.lastCoverSearchQuery = coverWasFound ? null : this.metadata.coverSearchQuery
}
// Audio file metadata tags map to book details (will not overwrite)
setMetadataFromAudioFile(overrideExistingDetails = false) {
if (!this.audioFiles.length) return false
var audioFile = this.audioFiles[0]
if (!audioFile.metaTags) return false
return this.metadata.setDataFromAudioMetaTags(audioFile.metaTags, overrideExistingDetails)
}
rebuildTracks() {
this.audioFiles.sort((a, b) => a.index - b.index)
this.missingParts = []
this.setChapters()
this.checkUpdateMissingTracks()
}
setChapters() {
// If 1 audio file without chapters, then no chapters will be set
var includedAudioFiles = this.audioFiles.filter(af => !af.exclude)
if (includedAudioFiles.length === 1) {
// 1 audio file with chapters
if (includedAudioFiles[0].chapters) {
this.chapters = includedAudioFiles[0].chapters.map(c => ({ ...c }))
}
} else {
this.chapters = []
var currChapterId = 0
var currStartTime = 0
includedAudioFiles.forEach((file) => {
// If audio file has chapters use chapters
if (file.chapters && file.chapters.length) {
file.chapters.forEach((chapter) => {
var chapterDuration = chapter.end - chapter.start
if (chapterDuration > 0) {
var title = `Chapter ${currChapterId}`
if (chapter.title) {
title += ` (${chapter.title})`
}
this.chapters.push({
id: currChapterId++,
start: currStartTime,
end: currStartTime + chapterDuration,
title
})
currStartTime += chapterDuration
}
})
} else if (file.duration) {
// Otherwise just use track has chapter
this.chapters.push({
id: currChapterId++,
start: currStartTime,
end: currStartTime + file.duration,
title: file.metadata.filename ? Path.basename(file.metadata.filename, Path.extname(file.metadata.filename)) : `Chapter ${currChapterId}`
})
currStartTime += file.duration
}
})
}
}
setData(scanMediaMetadata) {
this.metadata = new BookMetadata()
this.metadata.setData(scanMediaMetadata)
}
// Look for desc.txt, reader.txt, metadata.abs and opf file then update details if found
async syncMetadataFiles(textMetadataFiles, opfMetadataOverrideDetails) {
var metadataUpdatePayload = {}
var descTxt = textMetadataFiles.find(lf => lf.metadata.filename === 'desc.txt')
if (descTxt) {
var descriptionText = await readTextFile(descTxt.metadata.path)
if (descriptionText) {
Logger.debug(`[Book] "${this.metadata.title}" found desc.txt updating description with "${descriptionText.slice(0, 20)}..."`)
metadataUpdatePayload.description = descriptionText
}
}
var readerTxt = textMetadataFiles.find(lf => lf.metadata.filename === 'reader.txt')
if (readerTxt) {
var narratorText = await readTextFile(readerTxt.metadata.path)
if (narratorText) {
Logger.debug(`[Book] "${this.metadata.title}" found reader.txt updating narrator with "${narratorText}"`)
metadataUpdatePayload.narrators = this.metadata.parseNarratorsTag(narratorText)
}
}
// TODO: Implement metadata.abs
var metadataAbs = textMetadataFiles.find(lf => lf.metadata.filename === 'metadata.abs')
if (metadataAbs) {
}
var metadataOpf = textMetadataFiles.find(lf => lf.isOPFFile || lf.metadata.filename === 'metadata.xml')
if (metadataOpf) {
var xmlText = await readTextFile(metadataOpf.metadata.path)
if (xmlText) {
var opfMetadata = await parseOpfMetadataXML(xmlText)
if (opfMetadata) {
for (const key in opfMetadata) {
// Add genres only if genres are empty
if (key === 'genres') {
if (opfMetadata.genres.length && (!this.metadata.genres.length || opfMetadataOverrideDetails)) {
metadataUpdatePayload[key] = opfMetadata.genres
}
} else if (key === 'author') {
if (opfMetadata.author && (!this.metadata.authors.length || opfMetadataOverrideDetails)) {
metadataUpdatePayload.authors = this.metadata.parseAuthorsTag(opfMetadata.author)
}
} else if (key === 'narrator') {
if (opfMetadata.narrator && (!this.metadata.narrators.length || opfMetadataOverrideDetails)) {
metadataUpdatePayload.narrators = this.metadata.parseNarratorsTag(opfMetadata.narrator)
}
} else if (key === 'series') {
if (opfMetadata.series && (!this.metadata.series.length || opfMetadataOverrideDetails)) {
metadataUpdatePayload.series = this.metadata.parseSeriesTag(opfMetadata.series, opfMetadata.sequence)
}
} else if (opfMetadata[key] && ((!this.metadata[key] && !metadataUpdatePayload[key]) || opfMetadataOverrideDetails)) {
metadataUpdatePayload[key] = opfMetadata[key]
}
}
}
}
}
if (Object.keys(metadataUpdatePayload).length) {
return this.metadata.update(metadataUpdatePayload)
}
return false
}
}
module.exports = Book