0.16.1-3 Playlist Fix

backend/src/utils/playlistAnalysis.js

@@ -563,16 +563,50 @@ function buildEvaluationLabel(metrics) {
   return 'wahrscheinlich korrekt (lineare Segmentfolge)';
 }
 
+function normalizeRelativeScore(value, maxValue) {
+  const numericValue = Number(value || 0);
+  const numericMax = Number(maxValue || 0);
+  if (!Number.isFinite(numericValue) || numericValue <= 0) {
+    return 0;
+  }
+  if (!Number.isFinite(numericMax) || numericMax <= 0) {
+    return 0;
+  }
+  return Math.min(1, Math.max(0, numericValue / numericMax));
+}
+
 function scoreCandidates(groupTitles) {
   const titles = Array.isArray(groupTitles) ? groupTitles : [];
   if (titles.length === 0) {
     return [];
   }
 
+  const maxDurationSeconds = titles.reduce(
+    (max, title) => Math.max(max, Number(title?.durationSeconds || 0)),
+    0
+  );
+  const maxAudioTrackCount = titles.reduce(
+    (max, title) => Math.max(max, Number(title?.audioTrackCount || 0)),
+    0
+  );
+  const maxChapterCount = titles.reduce(
+    (max, title) => Math.max(max, Number(title?.chapters || 0)),
+    0
+  );
+
   return titles
     .map((title) => {
       const metrics = computeSegmentMetrics(title.segmentNumbers);
+      const structureScore = Number(metrics.score || 0);
+      const durationScore = normalizeRelativeScore(title.durationSeconds, maxDurationSeconds) * 20;
+      const audioScore = normalizeRelativeScore(title.audioTrackCount, maxAudioTrackCount) * 4;
+      const chapterScore = normalizeRelativeScore(title.chapters, maxChapterCount) * 6;
+      const totalScore = structureScore + durationScore + audioScore + chapterScore;
       const reasons = [
+        `structure_score=${structureScore.toFixed(2)}`,
+        `duration_score=${durationScore.toFixed(2)}`,
+        `audio_score=${audioScore.toFixed(2)}`,
+        `chapter_score=${chapterScore.toFixed(2)}`,
         `sequence_steps=${metrics.directSequenceSteps}`,
         `sequence_coherence=${metrics.sequenceCoherence.toFixed(3)}`,
         `backward_jumps=${metrics.backwardJumps}`,
@@ -582,7 +616,7 @@ function scoreCandidates(groupTitles) {
 
       return {
         ...title,
-        score: Number(metrics.score || 0),
+        score: Number(totalScore.toFixed(4)),
         reasons,
         structuralMetrics: metrics,
         evaluationLabel: buildEvaluationLabel(metrics)