feat: add script to organize audiobooks by metadata tags

scripts/group_by_metadata.js

@@ -0,0 +1,92 @@
+const fs = require('fs')
+const path = require('path')
+const prober = require('../server/utils/prober')
+
+// Mocking some environment variables that might be needed
+process.env.FFPROBE_PATH = process.env.FFPROBE_PATH || 'ffprobe'
+
+async function organize(directory, dryRun = true) {
+  if (!fs.existsSync(directory)) {
+    console.error(`Error: Directory ${directory} does not exist.`)
+    return
+  }
+
+  const files = fs.readdirSync(directory).filter(f => f.toLowerCase().endsWith('.mp3'))
+  
+  if (files.length === 0) {
+    console.log(`No MP3 files found in ${directory}`)
+    return
+  }
+
+  console.log(`Found ${files.length} MP3 files. Probing metadata...`)
+
+  const groups = {}
+
+  for (const file of files) {
+    const filePath = path.join(directory, file)
+    try {
+      const probeData = await prober.probe(filePath)
+      
+      if (probeData.error) {
+        console.error(`Error probing ${file}: ${probeData.error}`)
+        continue
+      }
+
+      // album is often used for Audiobook title
+      // artist is author
+      const album = probeData.audioMetaTags?.tagAlbum || 'Unknown Album'
+      const artist = probeData.audioMetaTags?.tagArtist || 'Unknown Author'
+      
+      const folderName = `${artist} - ${album}`.replace(/[<>:"/\\|?*]/g, '_') // Sanitize folder name
+      
+      if (!groups[folderName]) {
+        groups[folderName] = []
+      }
+      groups[folderName].push(file)
+    } catch (err) {
+      console.error(`Failed to process ${file}:`, err)
+    }
+  }
+
+  console.log('\nOrganization Plan:')
+  for (const [folderName, folderFiles] of Object.entries(groups)) {
+    console.log(`\nFolder: ${folderName} (${folderFiles.length} files)`)
+    folderFiles.forEach(f => console.log(`  - ${f}`))
+  }
+
+  if (dryRun) {
+    console.log('\n[DRY RUN] No changes were made. Run with --apply to reorganize files.')
+    return
+  }
+
+  console.log('\nApplying changes...')
+  for (const [folderName, folderFiles] of Object.entries(groups)) {
+    const targetDir = path.join(directory, folderName)
+    if (!fs.existsSync(targetDir)) {
+      fs.mkdirSync(targetDir, { recursive: true })
+    }
+
+    for (const file of folderFiles) {
+      const oldPath = path.join(directory, file)
+      const newPath = path.join(targetDir, file)
+      try {
+        fs.renameSync(oldPath, newPath)
+        console.log(`Moved: ${file} -> ${folderName}/`)
+      } catch (err) {
+        console.error(`Error moving ${file}:`, err)
+      }
+    }
+  }
+  console.log('\nOrganization complete.')
+}
+
+const args = process.argv.slice(2)
+const dir = args[0]
+const apply = args.includes('--apply')
+
+if (!dir) {
+  console.log('Usage: node scripts/group_by_metadata.js <directory> [--apply]')
+  process.exit(1)
+}
+
+organize(path.resolve(dir), !apply)