import { expect, test } from '../helpers/serve-dist';
import {
  environmentChunkPattern,
  installSceneInstrumentation,
  readSceneInstrumentation,
} from '../helpers/scene-instrumentation';

test.beforeEach(async ({ page }) => installSceneInstrumentation(page));

test('falls back to one poster and no scene loop when the deferred scene chunk is unavailable', async ({
  page,
  distUrl,
}) => {
  const pageErrors: string[] = [];
  page.on('pageerror', (error) => pageErrors.push(error.message));
  await page.route(environmentChunkPattern, (route) => route.abort('failed'));
  await page.goto(distUrl, { waitUntil: 'domcontentloaded' });

  await expect(page.locator('.journey-world')).toHaveAttribute('data-scene-state', 'failed');
  await expect(page.locator('.journey-poster')).toHaveCount(1);
  await expect(page.locator('.journey-canvas')).toHaveCount(0);
  await expect(page.locator('main > section')).toHaveCount(8);
  await expect(page.locator('nav a[href="#contact"]')).toBeVisible();
  await expect(page.locator('#contact a[href^="mailto:"]')).toBeVisible();
  await expect.poll(async () => (await readSceneInstrumentation(page)).activeAnimationFrames).toBe(0);
  expect((await readSceneInstrumentation(page)).unhandledRejections).toEqual([]);
  expect(pageErrors).toEqual([]);
});

test('contains a WebGL initialization failure without hiding the portfolio', async ({ page, distUrl }) => {
  const pageErrors: string[] = [];
  page.on('pageerror', (error) => pageErrors.push(error.message));
  await page.addInitScript(() => {
    const nativeGetContext = HTMLCanvasElement.prototype.getContext;
    Object.defineProperty(HTMLCanvasElement.prototype, 'getContext', {
      configurable: true,
      value(this: HTMLCanvasElement, contextId: string, options?: unknown): RenderingContext | null {
        if (contextId === 'webgl' || contextId === 'webgl2' || contextId === 'experimental-webgl') return null;
        return Reflect.apply(nativeGetContext, this, [contextId, options]) as RenderingContext | null;
      },
    });
  });
  await page.goto(distUrl, { waitUntil: 'domcontentloaded' });

  await expect(page.locator('.journey-world')).toHaveAttribute('data-scene-state', 'failed');
  await expect(page.locator('.journey-poster')).toHaveCount(1);
  await expect(page.locator('.journey-canvas')).toHaveCount(0);
  await expect(page.locator('#portfolio-content')).toBeVisible();
  await expect(page.locator('#contact a[href^="mailto:"]')).toBeVisible();
  await expect.poll(async () => (await readSceneInstrumentation(page)).activeAnimationFrames).toBe(0);
  expect((await readSceneInstrumentation(page)).unhandledRejections).toEqual([]);
  expect(pageErrors).toEqual([]);
});

test('allows an explicit Static visitor to re-enable motion when the system permits it', async ({ page, distUrl }) => {
  const requests: string[] = [];
  page.on('request', (request) => requests.push(request.url()));
  await page.goto(distUrl, { waitUntil: 'domcontentloaded' });
  await page.getByLabel('Quality control').selectOption('static');

  await expect(page.getByRole('button', { name: 'Enable motion' })).toBeVisible();
  await expect(page.locator('.journey-canvas')).toHaveCount(0);
  await page.getByRole('button', { name: 'Enable motion' }).click();

  await expect(page.locator('.journey-world')).toHaveAttribute('data-scene-state', 'running');
  await expect(page.locator('.journey-canvas')).toHaveCount(1);
  expect(requests.some((url) => environmentChunkPattern.test(url))).toBe(true);
});