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import { Command, type CommandResult } from "@/lib/commands/base-command";
import { EditorCore } from "@/core";
import type { TScene } from "@/lib/timeline";
import { canDeleteScene, getFallbackSceneAfterDelete } from "@/lib/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,
});
}
}
}
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