jest.mock('next/server', () => ({
  NextResponse: jest.fn().mockImplementation(function (body, init) {
    // Use function and assign to `this` so `new NextResponse(...)` returns an instance with properties
    // eslint-disable-next-line no-invalid-this
    this.body = body;
    // eslint-disable-next-line no-invalid-this
    this.init = init;
  }),
}));

import { GET } from '@/app/api/sitemap/route';
import { mockFetch } from '@/app/__tests__/__mocks__/mock-fetch';

// Mock node-fetch so we don't perform real network requests in tests
jest.mock('node-fetch', () => ({
  __esModule: true,
  default: jest.fn(() =>
    Promise.resolve({
      ok: true,
      json: () =>
        Promise.resolve({
          posts: [
            {
              id: '67ac8dfa709c60000117d312',
              title: 'Just Doing Some Testing',
              meta_description: 'Hello bla bla bla bla',
              slug: 'just-doing-some-testing',
              updated_at: '2025-02-13T14:25:38.000+00:00',
            },
            {
              id: '67aaffc3709c60000117d2d9',
              title: 'Blockchain Based Voting System',
              meta_description: 'This project aims to revolutionize voting systems by leveraging blockchain to ensure security, transparency, and immutability.',
              slug: 'blockchain-based-voting-system',
              updated_at: '2025-02-13T16:54:42.000+00:00',
            },
          ],
          meta: { pagination: { limit: 'all', next: null, page: 1, pages: 1, prev: null, total: 2 } },
        }),
    })
  ),
}));

describe('GET /api/sitemap', () => {
  beforeAll(() => {
    process.env.GHOST_API_URL = 'http://localhost:2368';
    process.env.GHOST_API_KEY = 'test-api-key';
    process.env.NEXT_PUBLIC_BASE_URL = 'https://dki.one';

    // Provide mock posts via env so route can use them without fetching
    process.env.GHOST_MOCK_POSTS = JSON.stringify({ posts: [
      {
        id: '67ac8dfa709c60000117d312',
        title: 'Just Doing Some Testing',
        meta_description: 'Hello bla bla bla bla',
        slug: 'just-doing-some-testing',
        updated_at: '2025-02-13T14:25:38.000+00:00',
      },
      {
        id: '67aaffc3709c60000117d2d9',
        title: 'Blockchain Based Voting System',
        meta_description: 'This project aims to revolutionize voting systems by leveraging blockchain to ensure security, transparency, and immutability.',
        slug: 'blockchain-based-voting-system',
        updated_at: '2025-02-13T16:54:42.000+00:00',
      },
    ] });
  });

  it('should return a sitemap', async () => {
    const response = await GET();

    expect(response.body).toContain('<urlset xmlns="https://www.sitemaps.org/schemas/sitemap/0.9">');
    expect(response.body).toContain('<loc>https://dki.one/</loc>');
    expect(response.body).toContain('<loc>https://dki.one/legal-notice</loc>');
    expect(response.body).toContain('<loc>https://dki.one/privacy-policy</loc>');
    expect(response.body).toContain('<loc>https://dki.one/projects/just-doing-some-testing</loc>');
    expect(response.body).toContain('<loc>https://dki.one/projects/blockchain-based-voting-system</loc>');
    // Note: Headers are not available in test environment
  });
});