jest.mock("next/server", () => {
  const mockNextResponse = function (
    body: string | object,
    init?: { headers?: Record<string, string> },
  ) {
    // Return an object that mimics NextResponse
    const mockResponse = {
      body,
      init,
      text: async () => {
        if (typeof body === "string") {
          return body;
        } else if (body && typeof body === "object") {
          return JSON.stringify(body);
        }
        return "";
      },
      json: async () => {
        if (typeof body === "object") {
          return body;
        }
        try {
          return JSON.parse(body as string);
        } catch {
          return {};
        }
      },
    };
    return mockResponse;
  };

  return {
    NextResponse: mockNextResponse,
  };
});

jest.mock("@/lib/sitemap", () => ({
  getSitemapEntries: jest.fn(async () => [
    {
      url: "https://dki.one/en",
      lastModified: "2025-01-01T00:00:00.000Z",
    },
    {
      url: "https://dki.one/de",
      lastModified: "2025-01-01T00:00:00.000Z",
    },
    {
      url: "https://dki.one/en/projects/blockchain-based-voting-system",
      lastModified: "2025-02-13T16:54:42.000Z",
    },
    {
      url: "https://dki.one/de/projects/blockchain-based-voting-system",
      lastModified: "2025-02-13T16:54:42.000Z",
    },
  ]),
  generateSitemapXml: jest.fn(
    () =>
      '<?xml version="1.0" encoding="UTF-8"?><urlset xmlns="https://www.sitemaps.org/schemas/sitemap/0.9"><url><loc>https://dki.one/en</loc></url></urlset>',
  ),
}));

describe("GET /api/sitemap", () => {
  beforeAll(() => {
    process.env.NEXT_PUBLIC_BASE_URL = "https://dki.one";
  });

  it("should return a sitemap", async () => {
    const { GET } = await import("@/app/api/sitemap/route");
    const response = await GET();

    // Get the body text from the NextResponse
    const body = await response.text();

    expect(body).toContain(
      '<urlset xmlns="https://www.sitemaps.org/schemas/sitemap/0.9">',
    );
    expect(body).toContain("<loc>https://dki.one/en</loc>");
    // Note: Headers are not available in test environment
  });
});