import path from 'node:path';
import { describe, expect, it, vi } from 'vitest';
import { resolveDashboardAssets } from '../src/web/dashboard-assets.js';

describe('resolveDashboardAssets', () => {
  it('selects the built React dashboard when its index exists', () => {
    const workspace = path.resolve('workspace');
    const reactIndex = path.join(workspace, 'apps', 'dashboard', 'dist', 'index.html');
    const fileExists = vi.fn((candidate: string) => candidate === reactIndex);

    expect(resolveDashboardAssets(workspace, fileExists)).toEqual({
      directory: path.dirname(reactIndex),
      indexFile: reactIndex,
    });
  });

  it('fails clearly when the production React build is missing', () => {
    const workspace = path.resolve('workspace');

    expect(() => resolveDashboardAssets(workspace, () => false)).toThrow(
      'React dashboard build is missing',
    );
  });
});