import assert from "node:assert/strict";
import { describe, it } from "node:test";

const baseUrl = process.env.E2E_BASE_URL ?? "http://127.0.0.1:3100";

async function readPage(pathname) {
  const response = await fetch(`${baseUrl}${pathname}`);
  assert.equal(response.status, 200);
  return response.text();
}

describe("Next.js production server", () => {
  it("renders the homepage with the main hero copy", async () => {
    const html = await readPage("/");

    assert.match(html, /Bereit für Ihre neue Website/);
    assert.match(html, /E2E Beispieltermin/);
  });

  it("server-renders current calendar content", async () => {
    const html = await readPage("/kalender/");

    assert.match(html, /E2E Beispieltermin/);
    assert.match(html, /Beispielort/);
  });

  it("renders the information page without client-side placeholders", async () => {
    const html = await readPage("/informationen/");

    assert.match(html, /Informationsbereiche/);
    assert.doesNotMatch(html, /href="#"/);
  });

  it("serves the calendar API with cache validation", async () => {
    const response = await fetch(`${baseUrl}/api/events`, { redirect: "manual" });
    assert.equal(response.status, 200);
    const events = await response.json();
    assert.equal(events[0].title, "E2E Beispieltermin");
    assert.match(response.headers.get("cache-control") ?? "", /stale-while-revalidate/);
    const etag = response.headers.get("etag");
    assert.ok(etag);

    const cached = await fetch(`${baseUrl}/api/events`, {
      headers: { "if-none-match": etag },
    });
    assert.equal(cached.status, 304);
  });

  it("reports liveness and calendar readiness", async () => {
    const live = await fetch(`${baseUrl}/health/live`);
    assert.equal(live.status, 200);
    assert.deepEqual(await live.json(), { status: "ok" });

    const ready = await fetch(`${baseUrl}/health/ready`);
    assert.equal(ready.status, 200);
    assert.deepEqual(await ready.json(), { status: "ok", reason: null });
  });
});