From 1628a34ea0bd699cfdd6658ffeef77b6f51db27a Mon Sep 17 00:00:00 2001
From: 3dtours <yeunhiepanh.photo@gmail.com>
Date: Mon, 27 Jul 2026 19:31:36 +0700
Subject: [PATCH] fix: ghost overlap use inclusive boundary for adjacent items
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Changed itemEndBeat <= windowStartBeat → < and
noteAbsEnd <= windowStartBeat → < so abutting items
(Item 1 ends at bar 1, Item 2 starts at bar 1) show
ghost notes from the adjacent item.
---
 app/static/js/services/ghostNoteExtractor.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/static/js/services/ghostNoteExtractor.js b/app/static/js/services/ghostNoteExtractor.js
index 119dc21..bf02e01 100644
--- a/app/static/js/services/ghostNoteExtractor.js
+++ b/app/static/js/services/ghostNoteExtractor.js
@@ -32,7 +32,7 @@
         var itemStartBeat = item.startTime / secondsPerBeat;
         var itemEndBeat = (item.startTime + item.duration) / secondsPerBeat;
 
-        if (itemStartBeat >= windowEndBeat || itemEndBeat <= windowStartBeat) continue;
+        if (itemStartBeat >= windowEndBeat || itemEndBeat < windowStartBeat) continue;
 
         var notes = item.notes || [];
         for (var k = 0; k < notes.length; k++) {
@@ -40,7 +40,7 @@
           var noteAbsStart = itemStartBeat + (note.start_beat || 0);
           var noteAbsEnd = noteAbsStart + (note.duration_beats || 1);
 
-          if (noteAbsStart >= windowEndBeat || noteAbsEnd <= windowStartBeat) continue;
+          if (noteAbsStart >= windowEndBeat || noteAbsEnd < windowStartBeat) continue;
 
           var clampedStart = Math.max(noteAbsStart, windowStartBeat);
           var clampedEnd = Math.min(noteAbsEnd, windowEndBeat);