From cbd1b8212370c67b34a70dccd21bd82de72fead2 Mon Sep 17 00:00:00 2001
From: Maze Winther <mazewinther@gmail.com>
Date: Tue, 7 Apr 2026 04:41:27 +0200
Subject: refactor: structured track layout per scene

---
 apps/web/src/lib/ripple/diff.ts | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

(limited to 'apps/web/src/lib/ripple/diff.ts')

diff --git a/apps/web/src/lib/ripple/diff.ts b/apps/web/src/lib/ripple/diff.ts
index 22b8d996..49238738 100644
--- a/apps/web/src/lib/ripple/diff.ts
+++ b/apps/web/src/lib/ripple/diff.ts
@@ -1,5 +1,4 @@
-
-import type { TimelineElement, TimelineTrack } from "@/lib/timeline/types";
+import type { SceneTracks, TimelineElement, TimelineTrack } from "@/lib/timeline/types";
 import type { RippleAdjustment } from "./apply";
 
 interface Interval {
@@ -15,15 +14,25 @@ export function computeRippleAdjustments({
 	beforeTracks,
 	afterTracks,
 }: {
-	beforeTracks: TimelineTrack[];
-	afterTracks: TimelineTrack[];
+	beforeTracks: SceneTracks;
+	afterTracks: SceneTracks;
 }): RippleAdjustment[] {
-	const afterTracksById = new Map(afterTracks.map((track) => [track.id, track]));
+	const beforeTrackList = [
+		...beforeTracks.overlay,
+		beforeTracks.main,
+		...beforeTracks.audio,
+	];
+	const afterTrackList = [
+		...afterTracks.overlay,
+		afterTracks.main,
+		...afterTracks.audio,
+	];
+	const afterTracksById = new Map(afterTrackList.map((track) => [track.id, track]));
 	const allAfterElementIds = new Set(
-		afterTracks.flatMap((track) => track.elements.map((element) => element.id)),
+		afterTrackList.flatMap((track) => track.elements.map((element) => element.id)),
 	);
 
-	return beforeTracks.flatMap((beforeTrack): RippleAdjustment[] =>
+	return beforeTrackList.flatMap((beforeTrack): RippleAdjustment[] =>
 		computeTrackRippleAdjustments({
 			trackId: beforeTrack.id,
 			beforeElements: beforeTrack.elements,
-- 
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