Update new library scanner to handle metadata file changes

server/utils/generators/abmetadataGenerator.js

@@ -41,7 +41,7 @@ const podcastMetadataMapper = {
     from: (v) => v || null
   },
   genres: {
-    to: (m) => m.genres.join(', '),
+    to: (m) => m.genres?.join(', ') || '',
     from: (v) => commaSeparatedToArray(v)
   },
   feedUrl: {
@@ -68,11 +68,15 @@ const bookMetadataMapper = {
     from: (v) => v || null
   },
   authors: {
-    to: (m) => m.authorName || '',
+    to: (m) => {
+      if (m.authorName !== undefined) return m.authorName
+      if (!m.authors?.length) return ''
+      return m.authors.map(au => au.name).join(', ')
+    },
     from: (v) => commaSeparatedToArray(v)
   },
   narrators: {
-    to: (m) => m.narratorName || '',
+    to: (m) => m.narrators?.join(', ') || '',
     from: (v) => commaSeparatedToArray(v)
   },
   publishedYear: {
@@ -96,11 +100,19 @@ const bookMetadataMapper = {
     from: (v) => v || null
   },
   genres: {
-    to: (m) => m.genres.join(', '),
+    to: (m) => m.genres?.join(', ') || '',
     from: (v) => commaSeparatedToArray(v)
   },
   series: {
-    to: (m) => m.seriesName,
+    to: (m) => {
+      if (m.seriesName !== undefined) return m.seriesName
+      if (!m.series?.length) return ''
+      return m.series.map((se) => {
+        const sequence = se.bookSeries?.sequence || ''
+        if (!sequence) return se.name
+        return `${se.name} #${sequence}`
+      }).join(', ')
+    },
     from: (v) => {
       return commaSeparatedToArray(v).map(series => { // Return array of { name, sequence }
         let sequence = null
@@ -174,6 +186,45 @@ function generate(libraryItem, outputPath) {
 }
 module.exports.generate = generate
 
+function generateFromNewModel(libraryItem, outputPath) {
+  let fileString = `;ABMETADATA${CurrentAbMetadataVersion}\n`
+  fileString += `#audiobookshelf v${package.version}\n\n`
+
+  const mediaType = libraryItem.mediaType
+
+  fileString += `media=${mediaType}\n`
+  fileString += `tags=${JSON.stringify(libraryItem.media.tags || '')}\n`
+
+  const metadataMapper = metadataMappers[mediaType]
+  for (const key in metadataMapper) {
+    fileString += `${key}=${metadataMapper[key].to(libraryItem.media)}\n`
+  }
+
+  // Description block
+  if (libraryItem.media.description) {
+    fileString += '\n[DESCRIPTION]\n'
+    fileString += libraryItem.media.description + '\n'
+  }
+
+  // Book chapters
+  if (mediaType == 'book' && libraryItem.media.chapters?.length) {
+    fileString += '\n'
+    libraryItem.media.chapters.forEach((chapter) => {
+      fileString += `[CHAPTER]\n`
+      fileString += `start=${chapter.start}\n`
+      fileString += `end=${chapter.end}\n`
+      fileString += `title=${chapter.title}\n`
+    })
+  }
+  return fs.writeFile(outputPath, fileString).then(() => {
+    return filePerms.setDefault(outputPath, true).then(() => true)
+  }).catch((error) => {
+    Logger.error(`[absMetaFileGenerator] Failed to save abs file`, error)
+    return false
+  })
+}
+module.exports.generateFromNewModel = generateFromNewModel
+
 function parseSections(lines) {
   if (!lines || !lines.length || !lines[0].startsWith('[')) { // First line must be section start
     return []