const Path = require('path') const dir = require('node-dir') const Logger = require('../Logger') const AUDIO_FORMATS = ['m4b', 'mp3', 'm4a'] const INFO_FORMATS = ['nfo'] const IMAGE_FORMATS = ['png', 'jpg', 'jpeg', 'webp'] const EBOOK_FORMATS = ['epub', 'pdf'] function getPaths(path) { return new Promise((resolve) => { dir.paths(path, function (err, res) { if (err) { Logger.error(err) resolve(false) } resolve(res) }) }) } function isAudioFile(path) { if (!path) return false var ext = Path.extname(path) if (!ext) return false return AUDIO_FORMATS.includes(ext.slice(1).toLowerCase()) } function groupFilesIntoAudiobookPaths(paths) { // Step 1: Normalize path, Remove leading "/", Filter out files in root dir var pathsFiltered = paths.map(path => Path.normalize(path.slice(1))).filter(path => Path.parse(path).dir) // Step 2: Sort by least number of directories pathsFiltered.sort((a, b) => { var pathsA = Path.dirname(a).split(Path.sep).length var pathsB = Path.dirname(b).split(Path.sep).length return pathsA - pathsB }) // Step 2.5: Seperate audio files and other files var audioFilePaths = [] var otherFilePaths = [] pathsFiltered.forEach(path => { if (isAudioFile(path)) audioFilePaths.push(path) else otherFilePaths.push(path) }) // Step 3: Group audio files in audiobooks var audiobookGroup = {} audioFilePaths.forEach((path) => { var dirparts = Path.dirname(path).split(Path.sep) var numparts = dirparts.length var _path = '' // Iterate over directories in path for (let i = 0; i < numparts; i++) { var dirpart = dirparts.shift() _path = Path.join(_path, dirpart) if (audiobookGroup[_path]) { // Directory already has files, add file var relpath = Path.join(dirparts.join(Path.sep), Path.basename(path)) audiobookGroup[_path].push(relpath) return } else if (!dirparts.length) { // This is the last directory, create group audiobookGroup[_path] = [Path.basename(path)] return } } }) // Step 4: Add other files into audiobook groups otherFilePaths.forEach((path) => { var dirparts = Path.dirname(path).split(Path.sep) var numparts = dirparts.length var _path = '' // Iterate over directories in path for (let i = 0; i < numparts; i++) { var dirpart = dirparts.shift() _path = Path.join(_path, dirpart) if (audiobookGroup[_path]) { // Directory is audiobook group var relpath = Path.join(dirparts.join(Path.sep), Path.basename(path)) audiobookGroup[_path].push(relpath) return } } }) return audiobookGroup } module.exports.groupFilesIntoAudiobookPaths = groupFilesIntoAudiobookPaths function cleanFileObjects(basepath, abrelpath, files) { return files.map((file) => { var ext = Path.extname(file) return { filetype: getFileType(ext), filename: Path.basename(file), path: Path.join(abrelpath, file), // /AUDIOBOOK/PATH/filename.mp3 fullPath: Path.join(basepath, file), // /audiobooks/AUDIOBOOK/PATH/filename.mp3 ext: ext } }) } function getFileType(ext) { var ext_cleaned = ext.toLowerCase() if (ext_cleaned.startsWith('.')) ext_cleaned = ext_cleaned.slice(1) if (AUDIO_FORMATS.includes(ext_cleaned)) return 'audio' if (INFO_FORMATS.includes(ext_cleaned)) return 'info' if (IMAGE_FORMATS.includes(ext_cleaned)) return 'image' if (EBOOK_FORMATS.includes(ext_cleaned)) return 'ebook' return 'unknown' } // Primary scan: abRootPath is /audiobooks async function scanRootDir(abRootPath, serverSettings = {}) { var parseSubtitle = !!serverSettings.scannerParseSubtitle var pathdata = await getPaths(abRootPath) var filepaths = pathdata.files.map(filepath => { return Path.normalize(filepath).replace(abRootPath, '') }) var audiobookGrouping = groupFilesIntoAudiobookPaths(filepaths) if (!Object.keys(audiobookGrouping).length) { Logger.error('Root path has no audiobooks') return [] } var audiobooks = [] for (const audiobookPath in audiobookGrouping) { var audiobookData = getAudiobookDataFromDir(abRootPath, audiobookPath, parseSubtitle) var fileObjs = cleanFileObjects(audiobookData.fullPath, audiobookPath, audiobookGrouping[audiobookPath]) audiobooks.push({ ...audiobookData, audioFiles: fileObjs.filter(f => f.filetype === 'audio'), otherFiles: fileObjs.filter(f => f.filetype !== 'audio') }) } return audiobooks } module.exports.scanRootDir = scanRootDir // Input relative filepath, output all details that can be parsed function getAudiobookDataFromDir(abRootPath, dir, parseSubtitle = false) { var splitDir = dir.split(Path.sep) // Audio files will always be in the directory named for the title var title = splitDir.pop() var series = null var author = null // If there are at least 2 more directories, next furthest will be the series if (splitDir.length > 1) series = splitDir.pop() if (splitDir.length > 0) author = splitDir.pop() // There could be many more directories, but only the top 3 are used for naming /author/series/title/ var publishYear = null // If Title is of format 1999 - Title, then use 1999 as publish year var publishYearMatch = title.match(/^([0-9]{4}) - (.+)/) if (publishYearMatch && publishYearMatch.length > 2) { if (!isNaN(publishYearMatch[1])) { publishYear = publishYearMatch[1] title = publishYearMatch[2] } } // If in a series directory check for volume number match /* ACCEPTS: Book 2 - Title Here - Subtitle Here Title Here - Subtitle Here - Vol 12 Title Here - volume 9 - Subtitle Here Vol. 3 Title Here - Subtitle Here 1980 - Book 2-Title Here Title Here-Volume 999-Subtitle Here */ var volumeNumber = null if (series) { var volumeMatch = title.match(/(-(?: ?))?\b((?:Book|Vol.?|Volume) \b(\d{1,3}))((?: ?)-)?/i) if (volumeMatch && volumeMatch.length > 3 && volumeMatch[2] && volumeMatch[3]) { volumeNumber = volumeMatch[3] var replaceChunk = volumeMatch[2] // "1980 - Book 2-Title Here" // Group 1 would be "- " // Group 3 would be "-" // Only remove the first group if (volumeMatch[1]) { replaceChunk = volumeMatch[1] + replaceChunk } else if (volumeMatch[4]) { replaceChunk += volumeMatch[4] } title = title.replace(replaceChunk, '').trim() } } // Subtitle can be parsed from the title if user enabled // Subtitle is everything after " - " var subtitle = null if (parseSubtitle && title.includes(' - ')) { var splitOnSubtitle = title.split(' - ') title = splitOnSubtitle.shift() subtitle = splitOnSubtitle.join(' - ') } return { author, title, subtitle, series, volumeNumber, publishYear, path: dir, // relative audiobook path i.e. /Author Name/Book Name/.. fullPath: Path.join(abRootPath, dir) // i.e. /audiobook/Author Name/Book Name/.. } } async function getAudiobookFileData(abRootPath, audiobookPath, serverSettings = {}) { var parseSubtitle = !!serverSettings.scannerParseSubtitle var paths = await getPaths(audiobookPath) var filepaths = paths.files // Sort by least number of directories filepaths.sort((a, b) => { var pathsA = Path.dirname(a).split(Path.sep).length var pathsB = Path.dirname(b).split(Path.sep).length return pathsA - pathsB }) var audiobookDir = Path.normalize(audiobookPath).replace(abRootPath, '').slice(1) var audiobookData = getAudiobookDataFromDir(abRootPath, audiobookDir, parseSubtitle) var audiobook = { ...audiobookData, audioFiles: [], otherFiles: [] } filepaths.forEach((filepath) => { var relpath = Path.normalize(filepath).replace(abRootPath, '').slice(1) var extname = Path.extname(filepath) var basename = Path.basename(filepath) var fileObj = { filetype: getFileType(extname), filename: basename, path: relpath, fullPath: filepath, ext: extname } if (fileObj.filetype === 'audio') { audiobook.audioFiles.push(fileObj) } else { audiobook.otherFiles.push(fileObj) } }) return audiobook } module.exports.getAudiobookFileData = getAudiobookFileData