From bd9ec023eefc4b5d26fa8b66c4338e97104f0f96 Mon Sep 17 00:00:00 2001
From: Maze Winther <mazewinther@gmail.com>
Date: Wed, 1 Apr 2026 19:27:49 +0200
Subject: refactor: split constants by domain and isolate timeline panel from
 core

---
 apps/web/src/lib/timeline/selection-hit-testing.ts | 133 ---------------------
 1 file changed, 133 deletions(-)
 delete mode 100644 apps/web/src/lib/timeline/selection-hit-testing.ts

(limited to 'apps/web/src/lib/timeline/selection-hit-testing.ts')

diff --git a/apps/web/src/lib/timeline/selection-hit-testing.ts b/apps/web/src/lib/timeline/selection-hit-testing.ts
deleted file mode 100644
index 3c0f597e..00000000
--- a/apps/web/src/lib/timeline/selection-hit-testing.ts
+++ /dev/null
@@ -1,133 +0,0 @@
-import { TIMELINE_CONSTANTS } from "@/constants/timeline-constants";
-import { getCumulativeHeightBefore, getTrackHeight } from "@/lib/timeline";
-import type { TimelineTrack } from "@/lib/timeline";
-
-type TimelineElementRef = { trackId: string; elementId: string };
-
-interface SelectionRectangle {
-	left: number;
-	top: number;
-	right: number;
-	bottom: number;
-}
-
-function getNormalizedRectangle({
-	startPos,
-	endPos,
-}: {
-	startPos: { x: number; y: number };
-	endPos: { x: number; y: number };
-}): SelectionRectangle {
-	return {
-		left: Math.min(startPos.x, endPos.x),
-		top: Math.min(startPos.y, endPos.y),
-		right: Math.max(startPos.x, endPos.x),
-		bottom: Math.max(startPos.y, endPos.y),
-	};
-}
-
-function getSelectionRectangleInContent({
-	container,
-	scrollContainer,
-	startPos,
-	endPos,
-}: {
-	container: HTMLElement;
-	scrollContainer: HTMLDivElement | null;
-	startPos: { x: number; y: number };
-	endPos: { x: number; y: number };
-}): SelectionRectangle {
-	const containerRect = container.getBoundingClientRect();
-	const scrollRect = scrollContainer?.getBoundingClientRect() ?? containerRect;
-	const scrollLeft = scrollContainer?.scrollLeft ?? 0;
-	const scrollTop = scrollContainer?.scrollTop ?? 0;
-
-	const adjustedStart = {
-		x: startPos.x - containerRect.left + scrollLeft,
-		y: startPos.y - scrollRect.top + scrollTop,
-	};
-	const adjustedEnd = {
-		x: endPos.x - containerRect.left + scrollLeft,
-		y: endPos.y - scrollRect.top + scrollTop,
-	};
-
-	return getNormalizedRectangle({
-		startPos: adjustedStart,
-		endPos: adjustedEnd,
-	});
-}
-
-function isRectangleIntersecting({
-	elementRectangle,
-	selectionRectangle,
-}: {
-	elementRectangle: SelectionRectangle;
-	selectionRectangle: SelectionRectangle;
-}): boolean {
-	return !(
-		elementRectangle.right < selectionRectangle.left ||
-		elementRectangle.left > selectionRectangle.right ||
-		elementRectangle.bottom < selectionRectangle.top ||
-		elementRectangle.top > selectionRectangle.bottom
-	);
-}
-
-export function resolveTimelineElementIntersections({
-	container,
-	scrollContainer,
-	tracks,
-	zoomLevel,
-	startPos,
-	currentPos,
-}: {
-	container: HTMLElement;
-	scrollContainer: HTMLDivElement | null;
-	tracks: TimelineTrack[];
-	zoomLevel: number;
-	startPos: { x: number; y: number };
-	currentPos: { x: number; y: number };
-}): TimelineElementRef[] {
-	const selectionRectangle = getSelectionRectangleInContent({
-		container,
-		scrollContainer,
-		startPos,
-		endPos: currentPos,
-	});
-	const pixelsPerSecond = TIMELINE_CONSTANTS.PIXELS_PER_SECOND * zoomLevel;
-	const selectedElements: TimelineElementRef[] = [];
-
-	for (const [trackIndex, track] of tracks.entries()) {
-		const trackTop = getCumulativeHeightBefore({
-			tracks,
-			trackIndex,
-		});
-		const trackHeight = getTrackHeight({ type: track.type });
-		const elementTop = TIMELINE_CONSTANTS.PADDING_TOP_PX + trackTop;
-		const elementBottom = elementTop + trackHeight;
-
-		for (const element of track.elements) {
-			const elementLeft = element.startTime * pixelsPerSecond;
-			const elementRight = elementLeft + element.duration * pixelsPerSecond;
-			const elementRectangle = {
-				left: elementLeft,
-				top: elementTop,
-				right: elementRight,
-				bottom: elementBottom,
-			};
-
-			if (
-				isRectangleIntersecting({
-					elementRectangle,
-					selectionRectangle,
-				})
-			) {
-				selectedElements.push({
-					trackId: track.id,
-					elementId: element.id,
-				});
-			}
-		}
-	}
-
-	return selectedElements;
-}
-- 
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