import { describe, expect, it } from 'vitest';

import {
  countUiNodeDescendants,
  findUiNode,
} from '../src/features/ui-editor/treeUtils';
import type { Node } from '../src/features/ui-editor/types/Node';

function node(id: string, children: Node[] = []): Node {
  return {
    id,
    layout: {} as Node['layout'],
    metadata: {} as Node['metadata'],
    components: [],
    children_display_mode: 'Stack',
    children,
  };
}

describe('ui tree utilities', () => {
  it('finds a nested node and counts all descendants', () => {
    const nested = node('nested', [node('leaf')]);
    const root = node('root', [node('page'), nested]);

    expect(findUiNode(root, 'nested')).toBe(nested);
    expect(findUiNode(root, 'missing')).toBeNull();
    expect(countUiNodeDescendants(nested)).toBe(1);
    expect(countUiNodeDescendants(root)).toBe(3);
  });
});