fix(subtitles): preserve lyric selection and deduplicate secondary text

- Seek sidebar selections past overlapping karaoke exit spans
- Collapse duplicate long ASS lines and omit reconstructed sign grids

src/main/runtime/secondary-subtitle-track.test.ts

@@ -34,6 +34,44 @@ test('findActiveSubtitleText collapses whitespace variants of one ASS lyric', ()
   );
 });
 
+test('parsed secondary text collapses a positioned sign that repeats dialogue without punctuation', () => {
+  const ass = [
+    '[Events]',
+    'Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text',
+    'Dialogue: 10,0:03:58.49,0:04:00.34,GJM_Main_1080p,Nar,0,0,0,,{\\i1}A question veiled as an insult!',
+    'Dialogue: 1,0:03:58.59,0:04:00.34,iFanzSigns,,0,0,0,,{\\pos(960,75)}A question veiled as an insult',
+  ].join('\n');
+  const cues = parseSubtitleCues(ass, 'kaguya-s02e10.ass');
+
+  assert.equal(findActiveSubtitleText(cues, 238.48), '');
+  assert.equal(findActiveSubtitleText(cues, 238.5), 'A question veiled as an insult!');
+  assert.equal(findActiveSubtitleText(cues, 239), 'A question veiled as an insult!');
+  assert.equal(findActiveSubtitleText(cues, 240.34), '');
+});
+
+test('parsed secondary text drops a reconstructed grid of positioned sign fragments', () => {
+  const signFragment = (text: string, x: number, y: number) =>
+    `Dialogue: 1,0:00:01.00,0:00:03.00,Signs,,0,0,0,,{\\pos(${x},${y})\\t(0,100,\\fscx101)}${text}`;
+  const ass = [
+    '[Events]',
+    'Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text',
+    'Dialogue: 10,0:00:01.00,0:00:03.00,Default,Speaker,0,0,0,,Come on, wake up!',
+    signFragment('Timetable', 1700, 150),
+    signFragment('Mon', 1750, 230),
+    signFragment('Tue', 1850, 230),
+    signFragment('1', 1650, 320),
+    signFragment('2', 1650, 390),
+    signFragment('Civics', 1750, 320),
+    signFragment('Math', 1850, 390),
+    signFragment('PE', 1850, 460),
+  ].join('\n');
+
+  assert.equal(
+    findActiveSubtitleText(parseSubtitleCues(ass, 'kaguya-s02e11.ass'), 2),
+    'Come on, wake up!',
+  );
+});
+
 test('parsed secondary lyrics keep explicit ASS vertical order when durations alternate', () => {
   const lyric = (options: { start: string; end: string; style: string; y: number; text: string }) =>
     `Dialogue: 0,0:00:${options.start},0:00:${options.end},${options.style},,0,0,0,fx,{\\move(100,${options.y},120,${options.y})\\t(0,200,\\fscx110)}${options.text}\\N{\\p1}m 0 0 l 0 5`;

src/main/runtime/secondary-subtitle-track.ts

@@ -1,4 +1,5 @@
 import type { SubtitleCue } from '../../types/subtitle';
+import { flattenedSecondarySubtitleLineIdentity } from '../../core/services/secondary-subtitle-line-identity';
 
 type SecondarySubtitleMpvClient = {
   connected?: boolean;
@@ -110,6 +111,7 @@ export function findActiveSubtitleText(cues: readonly SubtitleCue[], timeSeconds
   const activeReconstructed = cues.filter(
     (cue) =>
       cue.source === 'reconstructed-ass' &&
+      cue.assLayout?.kind !== 'fragment-grid' &&
       cue.startTime <= timeSeconds &&
       cue.endTime > timeSeconds,
   );
@@ -135,7 +137,8 @@ export function findActiveSubtitleText(cues: readonly SubtitleCue[], timeSeconds
   }
   const selectedReconstructed = new Set(reconstructedByStyle.values());
 
-  const seen = new Set<string>();
+  const seenExact = new Set<string>();
+  const seenFlattened = new Set<string>();
   const activeText: string[] = [];
   const activeCues: IndexedSubtitleCue[] = [];
   cues.forEach((cue, index) => {
@@ -152,8 +155,12 @@ export function findActiveSubtitleText(cues: readonly SubtitleCue[], timeSeconds
   for (const { cue } of activeCues) {
     const text = cue.text.trim();
     const compactText = text.replace(/\s+/gu, '');
-    if (!compactText || seen.has(compactText)) continue;
-    seen.add(compactText);
+    if (!compactText || seenExact.has(compactText)) continue;
+    seenExact.add(compactText);
+
+    const flattenedIdentity = flattenedSecondarySubtitleLineIdentity(text);
+    if (flattenedIdentity && seenFlattened.has(flattenedIdentity)) continue;
+    if (flattenedIdentity) seenFlattened.add(flattenedIdentity);
     activeText.push(text);
   }
   return activeText.join('\n');