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

1 files changed, 59 insertions, 0 deletions

diff --git a/apps/web/src/commands/scene/delete-scene.ts b/apps/web/src/commands/scene/delete-scene.ts
new file mode 100644
index 00000000..92de518f
--- /dev/null
+++ b/apps/web/src/commands/scene/delete-scene.ts
@@ -0,0 +1,59 @@
+import { Command, type CommandResult } from "@/commands/base-command";
+import { EditorCore } from "@/core";
+import type { TScene } from "@/timeline";
+import { canDeleteScene, getFallbackSceneAfterDelete } from "@/timeline/scenes";
+
+export class DeleteSceneCommand extends Command {
+	private savedScenes: TScene[] | null = null;
+	private savedActiveSceneId: string | null = null;
+	private deletedScene: TScene | null = null;
+
+	constructor(private sceneId: string) {
+		super();
+	}
+
+	execute(): CommandResult | undefined {
+		const editor = EditorCore.getInstance();
+		const scenes = editor.scenes.getScenes();
+		const activeScene = editor.scenes.getActiveScene();
+
+		this.savedScenes = [...scenes];
+		this.savedActiveSceneId = activeScene?.id ?? null;
+
+		this.deletedScene = scenes.find((s) => s.id === this.sceneId) ?? null;
+
+		if (!this.deletedScene) {
+			console.error("Scene not found:", this.sceneId);
+			return;
+		}
+
+		const { canDelete, reason } = canDeleteScene({ scene: this.deletedScene });
+		if (!canDelete) {
+			console.error("Cannot delete scene:", reason);
+			return;
+		}
+
+		const updatedScenes = scenes.filter((s) => s.id !== this.sceneId);
+
+		const newActiveScene = getFallbackSceneAfterDelete({
+			scenes: updatedScenes,
+			deletedSceneId: this.sceneId,
+			currentSceneId: activeScene?.id ?? null,
+		});
+
+		editor.scenes.setScenes({
+			scenes: updatedScenes,
+			activeSceneId: newActiveScene?.id,
+		});
+	}
+
+	undo(): void {
+		if (this.savedScenes && this.deletedScene) {
+			const editor = EditorCore.getInstance();
+			editor.scenes.setScenes({
+				scenes: this.savedScenes,
+				activeSceneId: this.savedActiveSceneId ?? undefined,
+			});
+		}
+	}
+}