refactor: restructure files to their domains, new preview overlay system, and dep graph

1 files changed, 75 insertions, 0 deletions

diff --git a/apps/web/src/commands/timeline/element/keyframes/retime-keyframe.ts b/apps/web/src/commands/timeline/element/keyframes/retime-keyframe.ts
new file mode 100644
index 00000000..ccbdbc5d
--- /dev/null
+++ b/apps/web/src/commands/timeline/element/keyframes/retime-keyframe.ts
@@ -0,0 +1,75 @@
+import { EditorCore } from "@/core";
+import { resolveAnimationTarget, retimeElementKeyframe } from "@/animation";
+import { Command, type CommandResult } from "@/commands/base-command";
+import { updateElementInSceneTracks } from "@/timeline";
+import type { AnimationPath } from "@/animation/types";
+import type { SceneTracks } from "@/timeline";
+
+export class RetimeKeyframeCommand extends Command {
+	private savedState: SceneTracks | null = null;
+	private readonly trackId: string;
+	private readonly elementId: string;
+	private readonly propertyPath: AnimationPath;
+	private readonly keyframeId: string;
+	private readonly nextTime: number;
+
+	constructor({
+		trackId,
+		elementId,
+		propertyPath,
+		keyframeId,
+		nextTime,
+	}: {
+		trackId: string;
+		elementId: string;
+		propertyPath: AnimationPath;
+		keyframeId: string;
+		nextTime: number;
+	}) {
+		super();
+		this.trackId = trackId;
+		this.elementId = elementId;
+		this.propertyPath = propertyPath;
+		this.keyframeId = keyframeId;
+		this.nextTime = nextTime;
+	}
+
+	execute(): CommandResult | undefined {
+		const editor = EditorCore.getInstance();
+		this.savedState = editor.scenes.getActiveScene().tracks;
+
+		const updatedTracks = updateElementInSceneTracks({
+			tracks: this.savedState,
+			trackId: this.trackId,
+			elementId: this.elementId,
+			update: (element) => {
+				if (!resolveAnimationTarget({ element, path: this.propertyPath })) {
+					return element;
+				}
+
+				const boundedTime = Math.max(0, Math.min(this.nextTime, element.duration));
+				return {
+					...element,
+					animations: retimeElementKeyframe({
+						animations: element.animations,
+						propertyPath: this.propertyPath,
+						keyframeId: this.keyframeId,
+						time: boundedTime,
+					}),
+				};
+			},
+		});
+
+		editor.timeline.updateTracks(updatedTracks);
+		return undefined;
+	}
+
+	undo(): void {
+		if (!this.savedState) {
+			return;
+		}
+
+		const editor = EditorCore.getInstance();
+		editor.timeline.updateTracks(this.savedState);
+	}
+}