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

---
 .../web/src/lib/timeline/audio-separation/index.ts | 143 ---------------------
 1 file changed, 143 deletions(-)
 delete mode 100644 apps/web/src/lib/timeline/audio-separation/index.ts

(limited to 'apps/web/src/lib/timeline/audio-separation')

diff --git a/apps/web/src/lib/timeline/audio-separation/index.ts b/apps/web/src/lib/timeline/audio-separation/index.ts
deleted file mode 100644
index 849dbda3..00000000
--- a/apps/web/src/lib/timeline/audio-separation/index.ts
+++ /dev/null
@@ -1,143 +0,0 @@
-import { cloneAnimations } from "@/lib/animation";
-import type { ElementAnimations } from "@/lib/animation/types";
-import type { MediaAsset } from "@/lib/media/types";
-import { DEFAULTS } from "@/lib/timeline/defaults";
-import type {
-	CreateUploadAudioElement,
-	TimelineElement,
-	AudioElement,
-	VideoElement,
-} from "../types";
-
-type MediaAudioState = Pick<MediaAsset, "hasAudio">;
-
-export function isSourceAudioEnabled({
-	element,
-}: {
-	element: VideoElement;
-}): boolean {
-	return element.isSourceAudioEnabled !== false;
-}
-
-export function isSourceAudioSeparated({
-	element,
-}: {
-	element: VideoElement;
-}): boolean {
-	return !isSourceAudioEnabled({ element });
-}
-
-export function canExtractSourceAudio(
-	element: TimelineElement,
-	mediaAsset: MediaAudioState | null | undefined,
-): element is VideoElement {
-	return (
-		element.type === "video" &&
-		isSourceAudioEnabled({ element }) &&
-		!!mediaAsset &&
-		mediaAsset.hasAudio !== false
-	);
-}
-
-export function canRecoverSourceAudio(
-	element: TimelineElement,
-): element is VideoElement {
-	return element.type === "video" && isSourceAudioSeparated({ element });
-}
-
-export function canToggleSourceAudio(
-	element: TimelineElement,
-	mediaAsset: MediaAudioState | null | undefined,
-): element is VideoElement {
-	return (
-		canRecoverSourceAudio(element) || canExtractSourceAudio(element, mediaAsset)
-	);
-}
-
-export function doesElementHaveEnabledAudio({
-	element,
-	mediaAsset,
-}: {
-	element: AudioElement | VideoElement;
-	mediaAsset?: MediaAudioState | null;
-}): boolean {
-	if (element.type === "audio") {
-		return true;
-	}
-
-	return (
-		!!mediaAsset &&
-		mediaAsset.hasAudio !== false &&
-		isSourceAudioEnabled({ element })
-	);
-}
-
-export function buildSeparatedAudioElement({
-	sourceElement,
-}: {
-	sourceElement: VideoElement;
-}): CreateUploadAudioElement {
-	return {
-		type: "audio",
-		sourceType: "upload",
-		mediaId: sourceElement.mediaId,
-		name: sourceElement.name,
-		duration: sourceElement.duration,
-		startTime: sourceElement.startTime,
-		trimStart: sourceElement.trimStart,
-		trimEnd: sourceElement.trimEnd,
-		sourceDuration: sourceElement.sourceDuration,
-		volume: sourceElement.volume ?? DEFAULTS.element.volume,
-		muted: sourceElement.muted ?? false,
-		retime: sourceElement.retime
-			? {
-					rate: sourceElement.retime.rate,
-					maintainPitch: sourceElement.retime.maintainPitch,
-				}
-			: undefined,
-		animations: cloneVolumeAnimations({
-			animations: sourceElement.animations,
-		}),
-	};
-}
-
-export function getSourceAudioActionLabel({
-	element,
-}: {
-	element: VideoElement;
-}): "Extract audio" | "Recover audio" {
-	return isSourceAudioSeparated({ element })
-		? "Recover audio"
-		: "Extract audio";
-}
-
-function cloneVolumeAnimations({
-	animations,
-}: {
-	animations: ElementAnimations | undefined;
-}): ElementAnimations | undefined {
-	const volumeBinding = animations?.bindings.volume;
-	if (!volumeBinding) {
-		return undefined;
-	}
-
-	const subsetChannels = Object.fromEntries(
-		volumeBinding.components.flatMap((component) => {
-			const channel = animations?.channels[component.channelId];
-			return channel ? [[component.channelId, channel] as const] : [];
-		}),
-	);
-	if (Object.keys(subsetChannels).length === 0) {
-		return undefined;
-	}
-
-	return cloneAnimations({
-		animations: {
-			bindings: {
-				volume: volumeBinding,
-			},
-			channels: subsetChannels,
-		},
-		shouldRegenerateKeyframeIds: true,
-	});
-}
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