From dcf54c1250431f5a4a2848f7c07781ef5eebacaf Mon Sep 17 00:00:00 2001
From: Maze Winther <mazewinther@gmail.com>
Date: Tue, 31 Mar 2026 04:03:52 +0200
Subject: feat: migrate time utilities from typescript to rust WASM

---
 .../components/editor/panels/preview/toolbar.tsx   | 298 ++++++++++-----------
 .../editor/panels/timeline/bookmarks.tsx           |   2 +-
 2 files changed, 148 insertions(+), 152 deletions(-)

(limited to 'apps/web/src/components/editor/panels')

diff --git a/apps/web/src/components/editor/panels/preview/toolbar.tsx b/apps/web/src/components/editor/panels/preview/toolbar.tsx
index 5c183bbb..340058d0 100644
--- a/apps/web/src/components/editor/panels/preview/toolbar.tsx
+++ b/apps/web/src/components/editor/panels/preview/toolbar.tsx
@@ -1,151 +1,147 @@
-"use client";
-
-import { useState, useEffect } from "react";
-import { useEditor } from "@/hooks/use-editor";
-import { formatTimeCode } from "@/lib/time";
-import { invokeAction } from "@/lib/actions";
-import { EditableTimecode } from "@/components/editable-timecode";
-import { Button } from "@/components/ui/button";
-import {
-	FullScreenIcon,
-	GridTableIcon,
-	PauseIcon,
-	PlayIcon,
-} from "@hugeicons/core-free-icons";
-import { HugeiconsIcon } from "@hugeicons/react";
-import { getGuideById } from "@/lib/guides";
-import { Separator } from "@/components/ui/separator";
-import {
-	Select,
-	SelectTrigger,
-	SelectContent,
-	SelectItem,
-	SelectSeparator,
-} from "@/components/ui/select";
-import { PREVIEW_ZOOM_PRESETS } from "@/constants/editor-constants";
-import { usePreviewViewport } from "./preview-viewport";
-import { GridPopover } from "./guide-popover";
-import { usePreviewStore } from "@/stores/preview-store";
-
-export function PreviewToolbar({
-	onToggleFullscreen,
-}: {
-	onToggleFullscreen: () => void;
-}) {
-	const activeGuide = usePreviewStore((state) => state.activeGuide);
-	const activeGuideDefinition = getGuideById(activeGuide);
-
-	return (
-		<div className="grid grid-cols-[1fr_auto_1fr] items-center pb-3 pt-5 px-5">
-			<TimecodeDisplay />
-			<PlayPauseButton />
-			<div className="justify-self-end flex items-center gap-2.5">
-				<ZoomSelect />
-				<Separator orientation="vertical" className="h-4" />
-				<GridPopover>
-					<Button
-						variant={activeGuideDefinition ? "secondary" : "text"}
-						size="icon"
-					>
-						{activeGuideDefinition ? (
-							activeGuideDefinition.renderTriggerIcon()
-						) : (
-							<HugeiconsIcon icon={GridTableIcon} />
-						)}
-					</Button>
-				</GridPopover>
-				<Button variant="text" onClick={onToggleFullscreen}>
-					<HugeiconsIcon icon={FullScreenIcon} />
-				</Button>
-			</div>
-		</div>
-	);
-}
-
-function TimecodeDisplay() {
-	const editor = useEditor();
-	const totalDuration = useEditor((e) => e.timeline.getTotalDuration());
-	const fps = useEditor((e) => e.project.getActive().settings.fps);
-	const [currentTime, setCurrentTime] = useState(() =>
-		editor.playback.getCurrentTime(),
-	);
-
-	useEffect(() => {
-		const handler = (e: Event) =>
-			setCurrentTime((e as CustomEvent<{ time: number }>).detail.time);
-		window.addEventListener("playback-update", handler);
-		window.addEventListener("playback-seek", handler);
-		return () => {
-			window.removeEventListener("playback-update", handler);
-			window.removeEventListener("playback-seek", handler);
-		};
-	}, []);
-
-	return (
-		<div className="flex items-center">
-			<EditableTimecode
-				time={currentTime}
-				duration={totalDuration}
-				format="HH:MM:SS:FF"
-				fps={fps}
-				onTimeChange={({ time }) => editor.playback.seek({ time })}
-				className="text-center"
-			/>
-			<span className="text-muted-foreground px-2 font-mono text-xs">/</span>
-			<span className="text-muted-foreground font-mono text-xs">
-				{formatTimeCode({
-					timeInSeconds: totalDuration,
-					format: "HH:MM:SS:FF",
-					fps,
-				})}
-			</span>
-		</div>
-	);
-}
-
-function ZoomSelect() {
-	const { isAtFit, zoomPercent, fitToScreen, setViewportPercent } =
-		usePreviewViewport();
-
-	const displayLabel = isAtFit ? "Fit" : `${zoomPercent}%`;
-
-	const onValueChange = (value: string) => {
-		if (value === "fit") {
-			fitToScreen();
-		} else {
-			setViewportPercent({ percent: Number(value) });
-		}
-	};
-
-	return (
-		<Select
-			value={isAtFit ? "fit" : String(zoomPercent)}
-			onValueChange={onValueChange}
-		>
-			<SelectTrigger className="tabular-nums">{displayLabel}</SelectTrigger>
-			<SelectContent>
-				<SelectItem value="fit">Fit</SelectItem>
-				<SelectSeparator />
-				{PREVIEW_ZOOM_PRESETS.map((preset) => (
-					<SelectItem key={preset} value={String(preset)}>
-						{preset}%
-					</SelectItem>
-				))}
-			</SelectContent>
-		</Select>
-	);
-}
-
-function PlayPauseButton() {
-	const isPlaying = useEditor((e) => e.playback.getIsPlaying());
-
-	return (
-		<Button
-			variant="text"
-			size="icon"
-			onClick={() => invokeAction("toggle-play")}
-		>
-			<HugeiconsIcon icon={isPlaying ? PauseIcon : PlayIcon} />
-		</Button>
-	);
-}
+"use client";
+
+import { useState, useEffect } from "react";
+import { useEditor } from "@/hooks/use-editor";
+import { formatTimeCode } from "opencut-wasm";
+import { invokeAction } from "@/lib/actions";
+import { EditableTimecode } from "@/components/editable-timecode";
+import { Button } from "@/components/ui/button";
+import {
+	FullScreenIcon,
+	GridTableIcon,
+	PauseIcon,
+	PlayIcon,
+} from "@hugeicons/core-free-icons";
+import { HugeiconsIcon } from "@hugeicons/react";
+import { getGuideById } from "@/lib/guides";
+import { Separator } from "@/components/ui/separator";
+import {
+	Select,
+	SelectTrigger,
+	SelectContent,
+	SelectItem,
+	SelectSeparator,
+} from "@/components/ui/select";
+import { PREVIEW_ZOOM_PRESETS } from "@/constants/editor-constants";
+import { usePreviewViewport } from "./preview-viewport";
+import { GridPopover } from "./guide-popover";
+import { usePreviewStore } from "@/stores/preview-store";
+
+export function PreviewToolbar({
+	onToggleFullscreen,
+}: {
+	onToggleFullscreen: () => void;
+}) {
+	const activeGuide = usePreviewStore((state) => state.activeGuide);
+	const activeGuideDefinition = getGuideById(activeGuide);
+
+	return (
+		<div className="grid grid-cols-[1fr_auto_1fr] items-center pb-3 pt-5 px-5">
+			<TimecodeDisplay />
+			<PlayPauseButton />
+			<div className="justify-self-end flex items-center gap-2.5">
+				<ZoomSelect />
+				<Separator orientation="vertical" className="h-4" />
+				<GridPopover>
+					<Button
+						variant={activeGuideDefinition ? "secondary" : "text"}
+						size="icon"
+					>
+						{activeGuideDefinition ? (
+							activeGuideDefinition.renderTriggerIcon()
+						) : (
+							<HugeiconsIcon icon={GridTableIcon} />
+						)}
+					</Button>
+				</GridPopover>
+				<Button variant="text" onClick={onToggleFullscreen}>
+					<HugeiconsIcon icon={FullScreenIcon} />
+				</Button>
+			</div>
+		</div>
+	);
+}
+
+function TimecodeDisplay() {
+	const editor = useEditor();
+	const totalDuration = useEditor((e) => e.timeline.getTotalDuration());
+	const fps = useEditor((e) => e.project.getActive().settings.fps);
+	const [currentTime, setCurrentTime] = useState(() =>
+		editor.playback.getCurrentTime(),
+	);
+
+	useEffect(() => {
+		const handler = (e: Event) =>
+			setCurrentTime((e as CustomEvent<{ time: number }>).detail.time);
+		window.addEventListener("playback-update", handler);
+		window.addEventListener("playback-seek", handler);
+		return () => {
+			window.removeEventListener("playback-update", handler);
+			window.removeEventListener("playback-seek", handler);
+		};
+	}, []);
+
+	return (
+		<div className="flex items-center">
+			<EditableTimecode
+				time={currentTime}
+				duration={totalDuration}
+				format="HH:MM:SS:FF"
+				fps={fps}
+				onTimeChange={({ time }) => editor.playback.seek({ time })}
+				className="text-center"
+			/>
+			<span className="text-muted-foreground px-2 font-mono text-xs">/</span>
+			<span className="text-muted-foreground font-mono text-xs">
+				{formatTimeCode({ timeInSeconds: totalDuration, format: "HH:MM:SS:FF", fps })}
+			</span>
+		</div>
+	);
+}
+
+function ZoomSelect() {
+	const { isAtFit, zoomPercent, fitToScreen, setViewportPercent } =
+		usePreviewViewport();
+
+	const displayLabel = isAtFit ? "Fit" : `${zoomPercent}%`;
+
+	const onValueChange = (value: string) => {
+		if (value === "fit") {
+			fitToScreen();
+		} else {
+			setViewportPercent({ percent: Number(value) });
+		}
+	};
+
+	return (
+		<Select
+			value={isAtFit ? "fit" : String(zoomPercent)}
+			onValueChange={onValueChange}
+		>
+			<SelectTrigger className="tabular-nums">{displayLabel}</SelectTrigger>
+			<SelectContent>
+				<SelectItem value="fit">Fit</SelectItem>
+				<SelectSeparator />
+				{PREVIEW_ZOOM_PRESETS.map((preset) => (
+					<SelectItem key={preset} value={String(preset)}>
+						{preset}%
+					</SelectItem>
+				))}
+			</SelectContent>
+		</Select>
+	);
+}
+
+function PlayPauseButton() {
+	const isPlaying = useEditor((e) => e.playback.getIsPlaying());
+
+	return (
+		<Button
+			variant="text"
+			size="icon"
+			onClick={() => invokeAction("toggle-play")}
+		>
+			<HugeiconsIcon icon={isPlaying ? PauseIcon : PlayIcon} />
+		</Button>
+	);
+}
diff --git a/apps/web/src/components/editor/panels/timeline/bookmarks.tsx b/apps/web/src/components/editor/panels/timeline/bookmarks.tsx
index b47f9d46..e2dc09f1 100644
--- a/apps/web/src/components/editor/panels/timeline/bookmarks.tsx
+++ b/apps/web/src/components/editor/panels/timeline/bookmarks.tsx
@@ -10,7 +10,7 @@ import {
 	TIMELINE_BOOKMARK_ROW_HEIGHT,
 } from "@/constants/timeline-constants";
 import { DEFAULT_FPS } from "@/constants/project-constants";
-import { getSnappedSeekTime } from "@/lib/time";
+import { getSnappedSeekTime } from "opencut-wasm";
 import {
 	ArrowTurnBackwardIcon,
 	Delete02Icon,
-- 
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