import { expect, test } from '@playwright/test';

const caseStudyPath = '/projects/qlockify';

async function expectDrawerOpen(page: import('@playwright/test').Page) {
  const dialog = page.locator('dialog[open]');
  await expect(dialog).toHaveAttribute('data-state', 'open');
  await expect(dialog).toBeVisible();
  return dialog;
}

test('a pointer click on the card CTA opens a route-backed drawer and restores the portfolio', async ({ page }) => {
  await page.goto('/', { waitUntil: 'domcontentloaded' });
  await page.evaluate(() => {
    window.scrollTo({ top: document.body.scrollHeight * 0.35, behavior: 'instant' });
  });
  const card = page.getByRole('article', { name: 'Qlockify' });
  const cta = card.getByRole('link', { name: 'View case study' });
  // Measure the viewport from which the user actually clicks, after any
  // automatic scroll needed to bring the link into view.
  await cta.scrollIntoViewIfNeeded();
  const portfolioScroll = await page.evaluate(() => window.scrollY);
  await cta.click();

  await expect(page).toHaveURL(new RegExp(`${caseStudyPath}$`));
  const dialog = await expectDrawerOpen(page);
  await expect(dialog.getByRole('button', { name: 'Close case study' })).toBeFocused();
  await expect(card.getByRole('link', { name: /Open the live Qlockify/ })).toHaveAttribute('target', '_blank');
  await expect(card.getByRole('link', { name: /Open the live Qlockify/ })).toHaveAttribute('rel', 'noopener noreferrer');

  await page.keyboard.press('Escape');
  await expect(page).toHaveURL(/\/$/);
  await expect(page.locator('dialog[open]')).toHaveCount(0);
  await expect(cta).toBeFocused();
  await expect.poll(async () => Math.abs(await page.evaluate(() => window.scrollY) - portfolioScroll))
    .toBeLessThan((page.viewportSize()?.height ?? 800) / 2);
});

test('a shared route opens over the portfolio and adjacent navigation replaces history', async ({ page }) => {
  await page.goto(caseStudyPath, { waitUntil: 'domcontentloaded' });
  const dialog = await expectDrawerOpen(page);
  await expect(page.getByRole('region', { name: 'Products I\'ve Brought to Life' })).toBeAttached();

  const historyLength = await page.evaluate(() => history.length);
  await dialog.getByRole('link', { name: /Next project Guilan ACE/ }).click();
  await expect(page).toHaveURL(/\/projects\/guilan-ace$/);
  await expect(dialog.getByRole('heading', { name: 'Guilan ACE', level: 1 })).toBeVisible();
  expect(await page.evaluate(() => history.length)).toBe(historyLength);
  await dialog.getByRole('button', { name: 'Close case study' }).click();
  await expect(page).toHaveURL(/\/$/);
});

test('share fallback, copy feedback, focus containment, and the localized RTL route work', async ({ page, context }) => {
  // This test exercises the fallback. Native mobile share sheets are outside
  // the DOM and are covered separately through the supported-share branch.
  await page.addInitScript(() => Object.defineProperty(navigator, 'share', { configurable: true, value: undefined }));
  await context.grantPermissions(['clipboard-read', 'clipboard-write']);
  await page.goto('/fa/projects/qlockify', { waitUntil: 'domcontentloaded' });
  const dialog = await expectDrawerOpen(page);
  await expect(page.locator('html')).toHaveAttribute('dir', 'rtl');
  await expect(dialog.getByRole('button', { name: 'بستن مطالعه موردی' })).toBeFocused();

  await dialog.getByRole('button', { name: 'اشتراک‌گذاری این مطالعه موردی' }).click();
  const shareDialog = page.getByRole('dialog', { name: 'اشتراک‌گذاری مطالعه موردی' });
  await expect(shareDialog).toBeVisible();
  await shareDialog.getByRole('button', { name: 'کپی پیوند' }).click();
  await expect(shareDialog.getByText('پیوند کپی شد', { exact: true }).first()).toBeVisible();
  expect(await page.evaluate(() => navigator.clipboard.readText())).toMatch(/\/fa\/projects\/qlockify$/);

  await shareDialog.getByRole('button', { name: 'بستن گزینه‌های اشتراک‌گذاری' }).click();
  await expect(dialog.getByRole('button', { name: 'اشتراک‌گذاری این مطالعه موردی' })).toBeFocused();

  await page.keyboard.press('Tab');
  expect(await page.evaluate(() => document.activeElement?.closest('dialog') !== null)).toBe(true);
});

test('mobile uses native sharing when it is available', async ({ page, isMobile }) => {
  test.skip(!isMobile, 'Native sharing is used on compact layouts');
  await page.addInitScript(() => Object.defineProperty(navigator, 'share', { configurable: true, value: async (data: ShareData) => { document.documentElement.dataset.sharedUrl = data.url; } }));
  await page.goto(caseStudyPath, { waitUntil: 'domcontentloaded' });
  const dialog = await expectDrawerOpen(page);
  await dialog.getByRole('button', { name: 'Share this case study' }).click();
  await expect(page.locator('html')).toHaveAttribute('data-shared-url', new RegExp(`${caseStudyPath}$`));
});

test('the gallery serves original media and opens an accessible full-screen viewer', async ({ page, isMobile }) => {
  await page.goto(caseStudyPath, { waitUntil: 'domcontentloaded' });
  const drawer = await expectDrawerOpen(page);
  const stage = drawer.getByRole('button', { name: /Open full-screen image/ });
  const selectedImage = stage.getByRole('img');
  await expect(selectedImage).toHaveAttribute('src', '/images/screenshots/qlockify/qlockify-landing.png');

  await stage.click();
  const viewer = page.getByRole('dialog', { name: 'Full-screen project gallery' });
  await expect(viewer).toBeVisible();
  await expect(viewer.getByText('1 of 8')).toBeVisible();
  if (isMobile) {
    await viewer.getByRole('button', { name: /^Show image 2:/ }).click();
  } else {
    await viewer.getByRole('button', { name: 'Next image' }).click();
  }
  await expect(viewer.getByText('2 of 8')).toBeVisible();
  await viewer.getByRole('button', { name: 'Close full-screen image' }).click();
  await expect(stage).toBeFocused();
});

test('the drawer stays bottom-anchored with its own scrolling surface', async ({ page }) => {
  await page.goto(caseStudyPath, { waitUntil: 'domcontentloaded' });
  const dialog = await expectDrawerOpen(page);
  const sheet = dialog.locator(':scope > div');
  const scrollArea = sheet.locator(':scope > div:last-child');
  const box = await sheet.boundingBox();
  const viewport = page.viewportSize();
  expect(box).not.toBeNull();
  expect(viewport).not.toBeNull();
  expect(Math.abs((box?.y ?? 0) + (box?.height ?? 0) - (viewport?.height ?? 0))).toBeLessThanOrEqual(2);
  expect(await page.locator('html').evaluate((element) => getComputedStyle(element).overflow)).toBe('hidden');
  expect(await scrollArea.evaluate((element) => element.scrollHeight > element.clientHeight)).toBe(true);
});