Update:Remove scanner settings, add library scanner settings tab, add order of precedence

server/scanner/OpfFileScanner.js

@@ -0,0 +1,48 @@
+const { parseOpfMetadataXML } = require('../utils/parsers/parseOpfMetadata')
+const { readTextFile } = require('../utils/fileUtils')
+
+class OpfFileScanner {
+  constructor() { }
+
+  /**
+   * Parse metadata from .opf file found in library scan and update bookMetadata
+   * 
+   * @param {import('../models/LibraryItem').LibraryFileObject} opfLibraryFileObj 
+   * @param {Object} bookMetadata 
+   */
+  async scanBookOpfFile(opfLibraryFileObj, bookMetadata) {
+    const xmlText = await readTextFile(opfLibraryFileObj.metadata.path)
+    const opfMetadata = xmlText ? await parseOpfMetadataXML(xmlText) : null
+    if (opfMetadata) {
+      for (const key in opfMetadata) {
+        if (key === 'tags') { // Add tags only if tags are empty
+          if (opfMetadata.tags.length) {
+            bookMetadata.tags = opfMetadata.tags
+          }
+        } else if (key === 'genres') { // Add genres only if genres are empty
+          if (opfMetadata.genres.length) {
+            bookMetadata.genres = opfMetadata.genres
+          }
+        } else if (key === 'authors') {
+          if (opfMetadata.authors?.length) {
+            bookMetadata.authors = opfMetadata.authors
+          }
+        } else if (key === 'narrators') {
+          if (opfMetadata.narrators?.length) {
+            bookMetadata.narrators = opfMetadata.narrators
+          }
+        } else if (key === 'series') {
+          if (opfMetadata.series) {
+            bookMetadata.series = [{
+              name: opfMetadata.series,
+              sequence: opfMetadata.sequence || null
+            }]
+          }
+        } else if (opfMetadata[key]) {
+          bookMetadata[key] = opfMetadata[key]
+        }
+      }
+    }
+  }
+}
+module.exports = new OpfFileScanner()