import {test, expect} from '../fixtures/boot';

test('boots the engine in the simulator', async ({driver}) => {
  const state = await driver.getState();
  expect(state.lifecycle).toBeTruthy();
  expect(state.lifecycle).not.toBe('disposed');
  expect(state.canvasSize.width).toBeGreaterThan(0);
  expect(state.canvasSize.height).toBeGreaterThan(0);
});

test('stepping advances the frame loop and probe rotation', async ({
  driver,
}) => {
  const before = await driver.getState();

  await driver.step(100);

  const after = await driver.getState();
  expect(after.frames).toBeGreaterThan(before.frames);
  expect(after.probeRotationY).toBeGreaterThan(before.probeRotationY);
});

test('renders non-black frames', async ({driver}) => {
  await driver.step(50);
  const frame = await driver.captureFrame();
  expect(frame.samples).toBeGreaterThan(0);
  // The harness scene renders a few small objects against the clear color,
  // so only a small fraction of pixels is lit.
  expect(frame.nonBlackFraction).toBeGreaterThan(0.01);
  expect(frame.meanLuma).toBeGreaterThan(0.5);
});

test('loads templates/00_basic with minimal three-only importmap', async ({
  page,
}) => {
  const base = process.env.E2E_BASE_URL;
  if (!base) {
    throw new Error('E2E_BASE_URL is not set (global setup did not run).');
  }
  const pageErrors: string[] = [];
  page.on('pageerror', (err) => {
    pageErrors.push(`${err.name}: ${err.message}`);
  });

  await page.goto(
    `${base}/templates/00_basic/index.html?debug=1&xrAutomation=1`
  );
  await page.waitForFunction(
    () =>
      (window as unknown as {xb?: {core?: {lifecycle?: string}}}).xb?.core
        ?.lifecycle === 'running',
    null,
    {timeout: 30_000}
  );
  expect(pageErrors).toEqual([]);
});