From 49a00b673b1b579ee0082d2a6547ff48aa37374c Mon Sep 17 00:00:00 2001
From: Honey <me_honeyy@proton.me>
Date: Sat, 2 May 2026 10:08:28 +0200
Subject: [PATCH] fix(backend): use YouTube Music as primary search source for
 better track matching

Falls back to plain YouTube if no match found on YT Music.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 backend/novasonic-server.js | 36 ++++++++++++++++++++++++------------
 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/backend/novasonic-server.js b/backend/novasonic-server.js
index 2ea920a..a9d02ff 100644
--- a/backend/novasonic-server.js
+++ b/backend/novasonic-server.js
@@ -215,25 +215,37 @@ async function downloadTrack({ jobId, artist, albumArtist, title, album, year, t
     );
   });
 
+  const hasAudio = () => fs.readdirSync(dir).some(f => AUDIO_EXTS.some(e => f.endsWith(`.${e}`)));
+
   if (durationMs) {
     const durationSec = Math.round(durationMs / 1000);
     const minDur = Math.max(30, Math.round(durationSec * 0.6));
     const maxDur = Math.round(durationSec * 1.5);
-    log(jobId, `🔍 Suche (~${durationSec}s): "${query}"`);
-    // Filter top result by duration — if it doesn't match, fall back to unfiltered
-    await spawnYtdlp([
-      `ytsearch1:${query}`,
-      '--match-filter', `duration > ${minDur} & duration < ${maxDur} & !is_live`,
-      ...baseArgs,
-    ]);
-    const hasFile = fs.readdirSync(dir).some(f => AUDIO_EXTS.some(e => f.endsWith(`.${e}`)));
-    if (!hasFile) {
-      log(jobId, '⚠️  Kein Treffer im Dauerbereich — Suche ohne Filter…');
+    const durFilter = ['--match-filter', `duration > ${minDur} & duration < ${maxDur} & !is_live`];
+
+    log(jobId, `🔍 Suche YT Music (~${durationSec}s): "${query}"`);
+    await spawnYtdlp([`ytmsearch1:${query}`, ...durFilter, ...baseArgs]);
+
+    if (!hasAudio()) {
+      log(jobId, '⚠️  Kein YT-Music-Treffer im Dauerbereich — Suche ohne Filter…');
+      await spawnYtdlp([`ytmsearch1:${query}`, ...baseArgs]);
+    }
+    if (!hasAudio()) {
+      log(jobId, '⚠️  Kein YT-Music-Treffer — Fallback zu YouTube…');
+      await spawnYtdlp([`ytsearch1:${query}`, ...durFilter, ...baseArgs]);
+    }
+    if (!hasAudio()) {
+      log(jobId, '⚠️  Kein YouTube-Treffer im Dauerbereich — Suche ohne Filter…');
       await spawnYtdlp([`ytsearch1:${query}`, ...baseArgs]);
     }
   } else {
-    log(jobId, `🔍 Suche: "${query}"`);
-    await spawnYtdlp([`ytsearch1:${query}`, ...baseArgs]);
+    log(jobId, `🔍 Suche YT Music: "${query}"`);
+    await spawnYtdlp([`ytmsearch1:${query}`, ...baseArgs]);
+
+    if (!hasAudio()) {
+      log(jobId, '⚠️  Kein YT-Music-Treffer — Fallback zu YouTube…');
+      await spawnYtdlp([`ytsearch1:${query}`, ...baseArgs]);
+    }
   }
 
   // Step 2: find the audio file yt-dlp wrote (newest audio file in dir)