chore: remove stale files

4 files changed, 0 insertions, 699 deletions

diff --git a/apps/web/src/lib/commands/timeline/clipboard/paste.ts b/apps/web/src/lib/commands/timeline/clipboard/paste.ts
deleted file mode 100644
index 58199a94..00000000
--- a/apps/web/src/lib/commands/timeline/clipboard/paste.ts
+++ /dev/null
@@ -1,193 +0,0 @@
-import {
-	Command,
-	createElementSelectionResult,
-	type CommandResult,
-} from "@/lib/commands/base-command";
-import { EditorCore } from "@/core";
-import type { SceneTracks, TimelineElement } from "@/lib/timeline";
-import type { ElementClipboardItem } from "@/lib/clipboard";
-import { generateUUID } from "@/utils/id";
-import {
-	applyPlacement,
-	resolveTrackPlacement,
-	enforceMainTrackStart,
-} from "@/lib/timeline/placement";
-import { cloneAnimations } from "@/lib/animation";
-
-export class PasteCommand extends Command {
-	private savedState: SceneTracks | null = null;
-	private pastedElements: { trackId: string; elementId: string }[] = [];
-	private readonly time: number;
-	private readonly clipboardItems: ElementClipboardItem[];
-
-	constructor({
-		time,
-		clipboardItems,
-	}: {
-		time: number;
-		clipboardItems: ElementClipboardItem[];
-	}) {
-		super();
-		this.time = time;
-		this.clipboardItems = clipboardItems;
-	}
-
-	execute(): CommandResult | undefined {
-		if (this.clipboardItems.length === 0) return undefined;
-
-		const editor = EditorCore.getInstance();
-		this.savedState = editor.scenes.getActiveScene().tracks;
-		this.pastedElements = [];
-
-		const minStart = Math.min(
-			...this.clipboardItems.map((item) => item.element.startTime),
-		);
-
-		let updatedTracks = this.savedState;
-		const itemsByTrackId = groupClipboardItemsByTrackId({
-			clipboardItems: this.clipboardItems,
-		});
-
-		for (const [trackId, items] of itemsByTrackId) {
-			const elementsToAdd = buildPastedElements({
-				items,
-				minStart,
-				time: this.time,
-			});
-
-			if (elementsToAdd.length === 0) {
-				continue;
-			}
-
-			const trackType = items[0].trackType;
-			const sourceTrackIndex = [
-				...updatedTracks.overlay,
-				updatedTracks.main,
-				...updatedTracks.audio,
-			].findIndex((track) => track.id === trackId);
-			const placementResult = resolveTrackPlacement({
-				tracks: updatedTracks,
-				trackType,
-				timeSpans: elementsToAdd.map((element) => ({
-					startTime: element.startTime,
-					duration: element.duration,
-				})),
-				strategy: { type: "aboveSource", sourceTrackIndex },
-			});
-			if (!placementResult) {
-				continue;
-			}
-
-			let elementsForPlacement = elementsToAdd;
-			if (placementResult.kind === "existingTrack") {
-				const targetTrack =
-					placementResult.trackIndex < updatedTracks.overlay.length
-						? updatedTracks.overlay[placementResult.trackIndex]
-						: placementResult.trackIndex === updatedTracks.overlay.length
-							? updatedTracks.main
-							: updatedTracks.audio[
-									placementResult.trackIndex - updatedTracks.overlay.length - 1
-								];
-				if (targetTrack?.id === updatedTracks.main.id) {
-					const earliestElement = elementsToAdd.reduce((earliest, element) =>
-						element.startTime < earliest.startTime ? element : earliest,
-					);
-					const adjustedEarliestStartTime = enforceMainTrackStart({
-						tracks: updatedTracks,
-						targetTrackId: targetTrack.id,
-						requestedStartTime: earliestElement.startTime,
-					});
-					const delta = adjustedEarliestStartTime - earliestElement.startTime;
-
-					if (delta !== 0) {
-						elementsForPlacement = elementsToAdd.map((element) => ({
-							...element,
-							startTime: Math.max(0, element.startTime + delta),
-						}));
-					}
-				}
-			}
-
-			const applied = applyPlacement({
-				tracks: updatedTracks,
-				placementResult,
-				elements: elementsForPlacement,
-			});
-			if (!applied) {
-				continue;
-			}
-
-			updatedTracks = applied.updatedTracks;
-
-			for (const element of elementsForPlacement) {
-				this.pastedElements.push({
-					trackId: applied.targetTrackId,
-					elementId: element.id,
-				});
-			}
-		}
-
-		editor.timeline.updateTracks(updatedTracks);
-
-		if (this.pastedElements.length > 0) {
-			return createElementSelectionResult(this.pastedElements);
-		}
-		return undefined;
-	}
-
-	undo(): void {
-		if (this.savedState) {
-			const editor = EditorCore.getInstance();
-			editor.timeline.updateTracks(this.savedState);
-		}
-	}
-
-	getPastedElements(): { trackId: string; elementId: string }[] {
-		return this.pastedElements;
-	}
-}
-
-function groupClipboardItemsByTrackId({
-	clipboardItems,
-}: {
-	clipboardItems: ElementClipboardItem[];
-}): Map<string, ElementClipboardItem[]> {
-	const groupedItems = new Map<string, ElementClipboardItem[]>();
-
-	for (const item of clipboardItems) {
-		const existingItems = groupedItems.get(item.trackId) ?? [];
-		groupedItems.set(item.trackId, [...existingItems, item]);
-	}
-
-	return groupedItems;
-}
-
-function buildPastedElements({
-	items,
-	minStart,
-	time,
-}: {
-	items: ElementClipboardItem[];
-	minStart: number;
-	time: number;
-}): TimelineElement[] {
-	const elementsToAdd: TimelineElement[] = [];
-
-	for (const item of items) {
-		const relativeOffset = item.element.startTime - minStart;
-		const startTime = Math.max(0, time + relativeOffset);
-		const newElementId = generateUUID();
-
-		elementsToAdd.push({
-			...item.element,
-			id: newElementId,
-			startTime,
-			animations: cloneAnimations({
-				animations: item.element.animations,
-				shouldRegenerateKeyframeIds: true,
-			}),
-		} as TimelineElement);
-	}
-
-	return elementsToAdd;
-}
diff --git a/apps/web/src/lib/commands/timeline/element/duplicate-elements.ts b/apps/web/src/lib/commands/timeline/element/duplicate-elements.ts
deleted file mode 100644
index c044a4e3..00000000
--- a/apps/web/src/lib/commands/timeline/element/duplicate-elements.ts
+++ /dev/null
@@ -1,137 +0,0 @@
-import {
-	Command,
-	createElementSelectionResult,
-	type CommandResult,
-} from "@/lib/commands/base-command";
-import type { SceneTracks, TimelineElement } from "@/lib/timeline";
-import { generateUUID } from "@/utils/id";
-import { EditorCore } from "@/core";
-import {
-	applyPlacement,
-	resolveTrackPlacement,
-} from "@/lib/timeline/placement";
-import { cloneAnimations } from "@/lib/animation";
-
-interface DuplicateElementsParams {
-	elements: { trackId: string; elementId: string }[];
-}
-
-export class DuplicateElementsCommand extends Command {
-	private duplicatedElements: { trackId: string; elementId: string }[] = [];
-	private savedState: SceneTracks | null = null;
-	private elements: DuplicateElementsParams["elements"];
-
-	constructor({ elements }: DuplicateElementsParams) {
-		super();
-		this.elements = elements;
-	}
-
-	execute(): CommandResult | undefined {
-		const editor = EditorCore.getInstance();
-		this.savedState = editor.scenes.getActiveScene().tracks;
-		this.duplicatedElements = [];
-
-		let updatedTracks = this.savedState;
-
-		for (const track of [
-			...this.savedState.overlay,
-			this.savedState.main,
-			...this.savedState.audio,
-		]) {
-			const elementsToDuplicate = this.elements.filter(
-				(elementEntry) => elementEntry.trackId === track.id,
-			);
-
-			if (elementsToDuplicate.length === 0) {
-				continue;
-			}
-
-			const elementIdsToDuplicate = new Set(
-				elementsToDuplicate.map((element) => element.elementId),
-			);
-			const newTrackElements: TimelineElement[] = [];
-
-			for (const element of track.elements) {
-				if (!elementIdsToDuplicate.has(element.id)) {
-					continue;
-				}
-
-				const newId = generateUUID();
-				newTrackElements.push(
-					buildDuplicateElement({
-						element,
-						id: newId,
-						startTime: element.startTime,
-					}),
-				);
-			}
-
-			const placementResult = resolveTrackPlacement({
-				tracks: updatedTracks,
-				trackType: track.type,
-				timeSpans: [],
-				strategy: { type: "alwaysNew", position: "highest" },
-			});
-			if (!placementResult || placementResult.kind !== "newTrack") {
-				continue;
-			}
-
-			const applied = applyPlacement({
-				tracks: updatedTracks,
-				placementResult,
-				elements: newTrackElements,
-			});
-			if (!applied) {
-				continue;
-			}
-
-			updatedTracks = applied.updatedTracks;
-
-			for (const element of newTrackElements) {
-				this.duplicatedElements.push({
-					trackId: applied.targetTrackId,
-					elementId: element.id,
-				});
-			}
-		}
-
-		editor.timeline.updateTracks(updatedTracks);
-
-		if (this.duplicatedElements.length > 0) {
-			return createElementSelectionResult(this.duplicatedElements);
-		}
-		return undefined;
-	}
-
-	undo(): void {
-		if (this.savedState) {
-			const editor = EditorCore.getInstance();
-			editor.timeline.updateTracks(this.savedState);
-		}
-	}
-
-	getDuplicatedElements(): { trackId: string; elementId: string }[] {
-		return this.duplicatedElements;
-	}
-}
-
-function buildDuplicateElement({
-	element,
-	id,
-	startTime,
-}: {
-	element: TimelineElement;
-	id: string;
-	startTime: number;
-}): TimelineElement {
-	return {
-		...element,
-		id,
-		name: `${element.name} (copy)`,
-		startTime,
-		animations: cloneAnimations({
-			animations: element.animations,
-			shouldRegenerateKeyframeIds: true,
-		}),
-	};
-}
diff --git a/apps/web/src/lib/commands/timeline/element/move-elements.ts b/apps/web/src/lib/commands/timeline/element/move-elements.ts
deleted file mode 100644
index 782374d5..00000000
--- a/apps/web/src/lib/commands/timeline/element/move-elements.ts
+++ /dev/null
@@ -1,187 +0,0 @@
-import {
-	Command,
-	createElementSelectionResult,
-	type CommandResult,
-} from "@/lib/commands/base-command";
-import { EditorCore } from "@/core";
-import type {
-	SceneTracks,
-	TimelineElement,
-	TimelineTrack,
-} from "@/lib/timeline";
-import {
-	buildEmptyTrack,
-	validateElementTrackCompatibility,
-} from "@/lib/timeline/placement";
-import type {
-	PlannedElementMove,
-	PlannedTrackCreation,
-} from "@/lib/timeline/group-move";
-import { findTrackInSceneTracks } from "@/lib/timeline/track-element-update";
-
-export class MoveElementCommand extends Command {
-	private savedState: SceneTracks | null = null;
-
-	constructor({
-		moves,
-		createTracks = [],
-	}: {
-		moves: PlannedElementMove[];
-		createTracks?: PlannedTrackCreation[];
-	}) {
-		super();
-		this.moves = moves;
-		this.createTracks = createTracks;
-	}
-
-	private readonly moves: PlannedElementMove[];
-	private readonly createTracks: PlannedTrackCreation[];
-
-	execute(): CommandResult | undefined {
-		const editor = EditorCore.getInstance();
-		this.savedState = editor.scenes.getActiveScene().tracks;
-
-		let tracksToUpdate = this.savedState;
-		for (const createTrack of [...this.createTracks].sort(
-			(firstTrack, secondTrack) => firstTrack.index - secondTrack.index,
-		)) {
-			tracksToUpdate = insertTrackAtDisplayIndex({
-				tracks: tracksToUpdate,
-				track: buildEmptyTrack({
-					id: createTrack.id,
-					type: createTrack.type,
-				}),
-				insertIndex: createTrack.index,
-			});
-		}
-
-		const movedElementsById = new Map<string, TimelineElement>();
-		for (const move of this.moves) {
-			const sourceTrack = findTrackInSceneTracks({
-				tracks: this.savedState,
-				trackId: move.sourceTrackId,
-			});
-			const sourceElement = sourceTrack?.elements.find(
-				(trackElement) => trackElement.id === move.elementId,
-			);
-			if (!sourceTrack || !sourceElement) {
-				throw new Error("Source track or element not found");
-			}
-
-			const targetTrack = findTrackInSceneTracks({
-				tracks: tracksToUpdate,
-				trackId: move.targetTrackId,
-			});
-			if (!targetTrack) {
-				throw new Error("Target track not found");
-			}
-
-			const validation = validateElementTrackCompatibility({
-				element: sourceElement,
-				track: targetTrack,
-			});
-			if (!validation.isValid) {
-				throw new Error(validation.errorMessage);
-			}
-
-			movedElementsById.set(move.elementId, {
-				...sourceElement,
-				startTime: move.newStartTime,
-			});
-		}
-
-		const movedElementIds = new Set(this.moves.map((move) => move.elementId));
-		const movedElementsByTargetTrackId = new Map<string, TimelineElement[]>();
-		for (const move of this.moves) {
-			const movedElement = movedElementsById.get(move.elementId);
-			if (!movedElement) {
-				continue;
-			}
-
-			const nextTargetElements =
-				movedElementsByTargetTrackId.get(move.targetTrackId) ?? [];
-			nextTargetElements.push(movedElement);
-			movedElementsByTargetTrackId.set(move.targetTrackId, nextTargetElements);
-		}
-
-		const updatedTracks = mapSceneTracks({
-			tracks: tracksToUpdate,
-			update: (track) => ({
-				...track,
-				elements: [
-					...track.elements.filter(
-						(element) => !movedElementIds.has(element.id),
-					),
-					...(movedElementsByTargetTrackId.get(track.id) ?? []),
-				],
-			}),
-		});
-
-		editor.timeline.updateTracks(updatedTracks);
-		return createElementSelectionResult(
-			this.moves.map(({ elementId, targetTrackId }) => ({
-				trackId: targetTrackId,
-				elementId,
-			})),
-		);
-	}
-
-	undo(): void {
-		if (this.savedState) {
-			const editor = EditorCore.getInstance();
-			editor.timeline.updateTracks(this.savedState);
-		}
-	}
-}
-
-function mapSceneTracks({
-	tracks,
-	update,
-}: {
-	tracks: SceneTracks;
-	update: <TTrack extends TimelineTrack>(track: TTrack) => TTrack;
-}): SceneTracks {
-	return {
-		overlay: tracks.overlay.map((track) => update(track)),
-		main: update(tracks.main),
-		audio: tracks.audio.map((track) => update(track)),
-	};
-}
-
-function insertTrackAtDisplayIndex({
-	tracks,
-	track,
-	insertIndex,
-}: {
-	tracks: SceneTracks;
-	track: TimelineTrack;
-	insertIndex: number;
-}): SceneTracks {
-	if (track.type === "audio") {
-		const audioInsertIndex = Math.max(
-			0,
-			Math.min(insertIndex - tracks.overlay.length - 1, tracks.audio.length),
-		);
-		return {
-			...tracks,
-			audio: [
-				...tracks.audio.slice(0, audioInsertIndex),
-				track,
-				...tracks.audio.slice(audioInsertIndex),
-			],
-		};
-	}
-
-	const overlayInsertIndex = Math.max(
-		0,
-		Math.min(insertIndex, tracks.overlay.length),
-	);
-	return {
-		...tracks,
-		overlay: [
-			...tracks.overlay.slice(0, overlayInsertIndex),
-			track,
-			...tracks.overlay.slice(overlayInsertIndex),
-		],
-	};
-}
diff --git a/apps/web/src/lib/commands/timeline/element/split-elements.ts b/apps/web/src/lib/commands/timeline/element/split-elements.ts
deleted file mode 100644
index f172d9c4..00000000
--- a/apps/web/src/lib/commands/timeline/element/split-elements.ts
+++ /dev/null
@@ -1,182 +0,0 @@
-import {
-	Command,
-	createElementSelectionResult,
-	type CommandResult,
-} from "@/lib/commands/base-command";
-import type { SceneTracks, TimelineElement } from "@/lib/timeline";
-import { generateUUID } from "@/utils/id";
-import { EditorCore } from "@/core";
-import { isRetimableElement } from "@/lib/timeline";
-import { splitAnimationsAtTime } from "@/lib/animation";
-import { getSourceSpanAtClipTime } from "@/lib/retime";
-
-export class SplitElementsCommand extends Command {
-	private savedState: SceneTracks | null = null;
-	private rightSideElements: { trackId: string; elementId: string }[] = [];
-	private readonly elements: { trackId: string; elementId: string }[];
-	private readonly splitTime: number;
-	private readonly retainSide: "both" | "left" | "right";
-
-	constructor({
-		elements,
-		splitTime,
-		retainSide = "both",
-	}: {
-		elements: { trackId: string; elementId: string }[];
-		splitTime: number;
-		retainSide?: "both" | "left" | "right";
-	}) {
-		super();
-		this.elements = elements;
-		this.splitTime = splitTime;
-		this.retainSide = retainSide;
-	}
-
-	getRightSideElements(): { trackId: string; elementId: string }[] {
-		return this.rightSideElements;
-	}
-
-	execute(): CommandResult | undefined {
-		const editor = EditorCore.getInstance();
-		this.savedState = editor.scenes.getActiveScene().tracks;
-		this.rightSideElements = [];
-
-		const splitTrack = <
-			TTrack extends { id: string; elements: TimelineElement[] },
-		>(
-			track: TTrack,
-		): TTrack => {
-			const elementsToSplit = this.elements.filter(
-				(target) => target.trackId === track.id,
-			);
-
-			if (elementsToSplit.length === 0) {
-				return track;
-			}
-
-			const elements = track.elements.flatMap((element) => {
-				const shouldSplit = elementsToSplit.some(
-					(target) => target.elementId === element.id,
-				);
-
-				if (!shouldSplit) {
-					return [element];
-				}
-
-				const effectiveStart = element.startTime;
-				const effectiveEnd = element.startTime + element.duration;
-
-				if (
-					this.splitTime <= effectiveStart ||
-					this.splitTime >= effectiveEnd
-				) {
-					return [element];
-				}
-
-				const relativeTime = this.splitTime - element.startTime;
-				const leftVisibleDuration = relativeTime;
-				const rightVisibleDuration = element.duration - relativeTime;
-				const retimeRef = isRetimableElement(element)
-					? element.retime
-					: undefined;
-				const leftSourceSpan = getSourceSpanAtClipTime({
-					clipTime: leftVisibleDuration,
-					retime: retimeRef,
-				});
-				const totalSourceSpan = getSourceSpanAtClipTime({
-					clipTime: element.duration,
-					retime: retimeRef,
-				});
-				const rightSourceSpan = totalSourceSpan - leftSourceSpan;
-				const { leftAnimations, rightAnimations } = splitAnimationsAtTime({
-					animations: element.animations,
-					splitTime: relativeTime,
-					shouldIncludeSplitBoundary: true,
-				});
-				let splitResult: TimelineElement[];
-
-				if (this.retainSide === "left") {
-					splitResult = [
-						{
-							...element,
-							duration: leftVisibleDuration,
-							trimEnd: element.trimEnd + rightSourceSpan,
-							name: `${element.name} (left)`,
-							animations: leftAnimations,
-							...(retimeRef !== undefined ? { retime: retimeRef } : {}),
-						},
-					];
-				} else if (this.retainSide === "right") {
-					const newId = generateUUID();
-					this.rightSideElements.push({
-						trackId: track.id,
-						elementId: newId,
-					});
-					splitResult = [
-						{
-							...element,
-							id: newId,
-							startTime: this.splitTime,
-							duration: rightVisibleDuration,
-							trimStart: element.trimStart + leftSourceSpan,
-							name: `${element.name} (right)`,
-							animations: rightAnimations,
-							...(retimeRef !== undefined ? { retime: retimeRef } : {}),
-						},
-					];
-				} else {
-					// "both" - split into two pieces
-					const secondElementId = generateUUID();
-					this.rightSideElements.push({
-						trackId: track.id,
-						elementId: secondElementId,
-					});
-					splitResult = [
-						{
-							...element,
-							duration: leftVisibleDuration,
-							trimEnd: element.trimEnd + rightSourceSpan,
-							name: `${element.name} (left)`,
-							animations: leftAnimations,
-							...(retimeRef !== undefined ? { retime: retimeRef } : {}),
-						},
-						{
-							...element,
-							id: secondElementId,
-							startTime: this.splitTime,
-							duration: rightVisibleDuration,
-							trimStart: element.trimStart + leftSourceSpan,
-							name: `${element.name} (right)`,
-							animations: rightAnimations,
-							...(retimeRef !== undefined ? { retime: retimeRef } : {}),
-						},
-					];
-				}
-
-				return splitResult;
-			});
-
-			return { ...track, elements } as TTrack;
-		};
-
-		const updatedTracks: SceneTracks = {
-			overlay: this.savedState.overlay.map((track) => splitTrack(track)),
-			main: splitTrack(this.savedState.main),
-			audio: this.savedState.audio.map((track) => splitTrack(track)),
-		};
-
-		editor.timeline.updateTracks(updatedTracks);
-
-		if (this.rightSideElements.length > 0) {
-			return createElementSelectionResult(this.rightSideElements);
-		}
-		return undefined;
-	}
-
-	undo(): void {
-		if (this.savedState) {
-			const editor = EditorCore.getInstance();
-			editor.timeline.updateTracks(this.savedState);
-		}
-	}
-}