Add NFO metadata source

server/utils/parsers/parseNfoMetadata.js

@@ -0,0 +1,94 @@
+function parseNfoMetadata(nfoText) {
+  if (!nfoText) return null
+  const lines = nfoText.split(/\r?\n/)
+  const metadata = {}
+  let insideBookDescription = false
+  lines.forEach(line => {
+    if (line.search(/^\s*book description\s*$/i) !== -1) {
+      insideBookDescription = true
+      return
+    }
+    if (insideBookDescription) {
+      if (line.search(/^\s*=+\s*$/i) !== -1) return
+      metadata.description = metadata.description || ''
+      metadata.description += line + '\n'
+      return
+    }
+    const match = line.match(/^(.*?):(.*)$/)
+    if (match) {
+      const key = match[1].toLowerCase().trim()
+      const value = match[2].trim()
+      if (!value) return
+      switch (key) {
+        case 'title':
+          {
+            const titleMatch = value.match(/^(.*?):(.*)$/)
+            if (titleMatch) {
+              metadata.title = titleMatch[1].trim()
+              metadata.subtitle = titleMatch[2].trim()
+            } else {
+              metadata.title = value
+            }
+          }
+          break
+        case 'author':
+          metadata.authors = value.split(/\s*,\s*/)
+          break
+        case 'narrator':
+        case 'read by':
+          metadata.narrators = value.split(/\s*,\s*/)
+          break
+        case 'series name':
+          metadata.series = value
+          break
+        case 'genre':
+          metadata.genres = value.split(/\s*,\s*/)
+          break
+        case 'tags':
+          metadata.tags = value.split(/\s*,\s*/)
+          break
+        case 'copyright':
+        case 'audible.com release':
+        case 'audiobook copyright':
+        case 'book copyright':
+        case 'recording copyright':
+        case 'release date':
+        case 'date':
+          {
+            const year = extractYear(value)
+            if (year) {
+              metadata.publishedYear = year
+            }
+          }
+          break;
+        case 'position in series':
+          metadata.sequence = value
+          break
+        case 'unabridged':
+          metadata.abridged = value.toLowerCase() === 'yes' ? false : true
+          break
+        case 'abridged':
+          metadata.abridged = value.toLowerCase() === 'no' ? false : true
+          break
+        case 'publisher':
+          metadata.publisher = value
+          break
+        case 'asin':
+          metadata.asin = value
+          break
+        case 'isbn': 
+        case 'isbn-10': 
+        case 'isbn-13': 
+          metadata.isbn = value
+          break
+      }  
+    }
+  })
+  return metadata
+}
+module.exports = { parseNfoMetadata }
+
+function extractYear(str) {
+  const match = str.match(/\d{4}/g)
+  return match ? match[match.length-1] : null
+}