From 3e89d2998588f8e35c524e523ba2ee853f0f6475 Mon Sep 17 00:00:00 2001
From: Maze Winther <mazewinther@gmail.com>
Date: Mon, 20 Apr 2026 11:31:17 +0200
Subject: refactor: restructure files to their domains,  new preview overlay
 system, and dep graph

---
 apps/web/src/lib/timeline/zoom-utils.ts | 90 ---------------------------------
 1 file changed, 90 deletions(-)
 delete mode 100644 apps/web/src/lib/timeline/zoom-utils.ts

(limited to 'apps/web/src/lib/timeline/zoom-utils.ts')

diff --git a/apps/web/src/lib/timeline/zoom-utils.ts b/apps/web/src/lib/timeline/zoom-utils.ts
deleted file mode 100644
index 680f8d0d..00000000
--- a/apps/web/src/lib/timeline/zoom-utils.ts
+++ /dev/null
@@ -1,90 +0,0 @@
-import {
-	BASE_TIMELINE_PIXELS_PER_SECOND,
-	TIMELINE_ZOOM_MAX,
-} from "@/lib/timeline/scale";
-import { TICKS_PER_SECOND } from "@/lib/wasm";
-
-const PADDING_MAX_RATIO = 0.75;
-const PADDING_MIN_RATIO = 0.15;
-const PADDING_MIN_AT_ZOOM_PERCENT = 0.2;
-
-export function getTimelineZoomMin({
-	duration,
-	containerWidth,
-}: {
-	duration: number;
-	containerWidth: number | null | undefined;
-}): number {
-	const safeDurationSeconds = Math.max(duration / TICKS_PER_SECOND, 1);
-	const safeContainerWidth = containerWidth ?? 1000;
-	const contentRatioAtMinZoom = 1 - PADDING_MAX_RATIO;
-	const availableWidth = safeContainerWidth * contentRatioAtMinZoom;
-	const zoomToFit =
-		availableWidth / (safeDurationSeconds * BASE_TIMELINE_PIXELS_PER_SECOND);
-
-	return Math.min(TIMELINE_ZOOM_MAX, zoomToFit);
-}
-
-export function getTimelinePaddingPx({
-	containerWidth,
-	zoomLevel,
-	minZoom,
-}: {
-	containerWidth: number;
-	zoomLevel: number;
-	minZoom: number;
-}): number {
-	const zoomPercent = getZoomPercent({ zoomLevel, minZoom });
-	const paddingTransitionPercent = Math.min(
-		zoomPercent / PADDING_MIN_AT_ZOOM_PERCENT,
-		1,
-	);
-	const paddingRatio =
-		PADDING_MAX_RATIO -
-		(PADDING_MAX_RATIO - PADDING_MIN_RATIO) * paddingTransitionPercent;
-
-	return containerWidth * paddingRatio;
-}
-
-export function getZoomPercent({
-	zoomLevel,
-	minZoom,
-}: {
-	zoomLevel: number;
-	minZoom: number;
-}): number {
-	return (zoomLevel - minZoom) / (TIMELINE_ZOOM_MAX - minZoom);
-}
-
-/**
- * convert linear slider position (0-1) to exponential zoom level.
- * at low slider values, zoom changes are small. at high values, changes are large.
- */
-export function sliderToZoom({
-	sliderPosition,
-	minZoom,
-	maxZoom = TIMELINE_ZOOM_MAX,
-}: {
-	sliderPosition: number;
-	minZoom: number;
-	maxZoom?: number;
-}): number {
-	const clampedPosition = Math.max(0, Math.min(1, sliderPosition));
-	return minZoom * (maxZoom / minZoom) ** clampedPosition;
-}
-
-/**
- * convert exponential zoom level to linear slider position (0-1).
- */
-export function zoomToSlider({
-	zoomLevel,
-	minZoom,
-	maxZoom = TIMELINE_ZOOM_MAX,
-}: {
-	zoomLevel: number;
-	minZoom: number;
-	maxZoom?: number;
-}): number {
-	const clampedZoom = Math.max(minZoom, Math.min(maxZoom, zoomLevel));
-	return Math.log(clampedZoom / minZoom) / Math.log(maxZoom / minZoom);
-}
-- 
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