Add getGenres endpoint

src/routes/subsonic.js

@@ -568,6 +568,32 @@ router.get('/getCoverArt.view', authenticateSubsonic, async (req, res) => {
   }
 });
 
+// Get genres
+router.get('/getGenres.view', authenticateSubsonic, async (req, res) => {
+  try {
+    const genres = await all(`
+      SELECT DISTINCT genre, COUNT(*) as song_count, COUNT(DISTINCT album) as album_count
+      FROM tracks
+      WHERE genre IS NOT NULL AND genre != ''
+      GROUP BY genre
+      ORDER BY genre
+    `);
+
+    let genresXml = '<genres>\n';
+    
+    genres.forEach(genre => {
+      genresXml += `  <genre songCount="${genre.song_count}" albumCount="${genre.album_count}">${escapeXml(genre.genre)}</genre>\n`;
+    });
+    
+    genresXml += '</genres>';
+    
+    sendSubsonicResponse(res, genresXml);
+  } catch (error) {
+    console.error('Error in getGenres:', error);
+    sendSubsonicError(res, 0, error.message);
+  }
+});
+
 // Get playlists
 router.get('/getPlaylists.view', authenticateSubsonic, async (req, res) => {
   try {