import { test, expect } from '@chromatic-com/playwright';
import { loginViaAPI, CONFIG, navigateTo, playFirstTrack } from './helpers';

/**
 * VISUAL BUGS — Tests ciblés pour prévenir les bugs visuels
 * Touch targets, images cassées, overflow, contraste
 */

test.describe('VISUAL — Touch targets mobile @visual @a11y @mobile', () => {
  test.use({ viewport: { width: 375, height: 667 } });

  test('Player controls — touch targets ≥ 44x44px', async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
    await navigateTo(page, '/discover');
    await playFirstTrack(page);
    await page.waitForTimeout(2000);

    const playerBar = page.getByTestId('player-bar').or(page.getByTestId('global-player'));
    if (await playerBar.isVisible({ timeout: 5000 }).catch(() => false)) {
      const buttons = await playerBar.locator('button').all();
      const tooSmall: string[] = [];

      for (const btn of buttons) {
        if (await btn.isVisible().catch(() => false)) {
          const box = await btn.boundingBox();
          if (box && (box.width < 32 || box.height < 32)) {
            const label = await btn.getAttribute('aria-label') || await btn.textContent() || 'unknown';
            tooSmall.push(`${label}: ${box.width}x${box.height}`);
          }
        }
      }

      if (tooSmall.length > 0) {
        console.warn(`⚠ Small touch targets: ${tooSmall.join(', ')}`);
      }
    }
  });

  test('Sidebar — pas de débordement horizontal sur mobile', async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
    await navigateTo(page, '/dashboard');

    const hasOverflow = await page.evaluate(() => {
      return document.documentElement.scrollWidth > document.documentElement.clientWidth;
    });

    expect(hasOverflow).toBeFalsy();
  });

  test('Login form — centré et pas de débordement', async ({ page }) => {
    await page.goto('/login');
    await page.waitForLoadState('networkidle').catch(() => {});

    const hasOverflow = await page.evaluate(() => {
      return document.documentElement.scrollWidth > document.documentElement.clientWidth;
    });

    expect(hasOverflow).toBeFalsy();
  });
});

test.describe('VISUAL — Images cassées @visual', () => {
  test.beforeEach(async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
  });

  test('Discover — aucune image cassée', async ({ page }) => {
    await navigateTo(page, '/discover');
    await page.waitForTimeout(3000);

    const brokenImages = await page.evaluate(() => {
      const imgs = document.querySelectorAll('img');
      return Array.from(imgs)
        .filter(img => img.src && !img.complete && img.naturalWidth === 0)
        .map(img => ({ src: img.src, alt: img.alt }));
    });

    if (brokenImages.length > 0) {
      console.warn(`⚠ Broken images on /discover: ${JSON.stringify(brokenImages)}`);
    }
  });

  test('Library — aucune image cassée', async ({ page }) => {
    await navigateTo(page, '/library');
    await page.waitForTimeout(3000);

    const brokenImages = await page.evaluate(() => {
      const imgs = document.querySelectorAll('img');
      return Array.from(imgs)
        .filter(img => img.src && !img.complete && img.naturalWidth === 0)
        .map(img => ({ src: img.src, alt: img.alt }));
    });

    if (brokenImages.length > 0) {
      console.warn(`⚠ Broken images on /library: ${JSON.stringify(brokenImages)}`);
    }
  });

  test('Marketplace — aucune image cassée', async ({ page }) => {
    await navigateTo(page, '/marketplace');
    await page.waitForTimeout(3000);

    const brokenImages = await page.evaluate(() => {
      const imgs = document.querySelectorAll('img');
      return Array.from(imgs)
        .filter(img => img.src && !img.complete && img.naturalWidth === 0)
        .map(img => ({ src: img.src, alt: img.alt }));
    });

    if (brokenImages.length > 0) {
      console.warn(`⚠ Broken images on /marketplace: ${JSON.stringify(brokenImages)}`);
    }
  });
});

test.describe('VISUAL — Layout responsive @visual', () => {
  test.setTimeout(60_000);

  const viewports = [
    { width: 375, height: 667, name: 'iPhone SE' },
    { width: 390, height: 844, name: 'iPhone 14' },
    { width: 768, height: 1024, name: 'iPad' },
    { width: 1280, height: 720, name: 'Desktop' },
  ];

  for (const vp of viewports) {
    test(`Pas de débordement horizontal sur ${vp.name} (${vp.width}x${vp.height}) @mobile`, async ({ page }) => {
      await page.setViewportSize({ width: vp.width, height: vp.height });
      await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);

      const pages = ['/dashboard', '/discover', '/library', '/playlists'];
      for (const path of pages) {
        await navigateTo(page, path);

        const hasOverflow = await page.evaluate(() =>
          document.documentElement.scrollWidth > document.documentElement.clientWidth,
        );

        expect(hasOverflow, `Overflow on ${path} at ${vp.width}x${vp.height}`).toBeFalsy();
      }
    });
  }
});

test.describe('VISUAL — Contraste et accessibilité @visual @a11y', () => {
  test('Messages d\'erreur sur login ont un contraste suffisant', async ({ page }) => {
    await page.goto('/login');
    await page.waitForLoadState('networkidle').catch(() => {});

    // Submit empty form to trigger validation
    const submitBtn = page.getByRole('button', { name: /sign in|connexion|se connecter/i }).first();
    if (await submitBtn.isVisible({ timeout: 5000 }).catch(() => false)) {
      await submitBtn.click();
      await page.waitForTimeout(500);

      // Check error messages exist and are visible
      const errorElements = await page.locator('[class*="destructive"], [role="alert"], [class*="error"]').all();
      for (const el of errorElements) {
        if (await el.isVisible().catch(() => false)) {
          const color = await el.evaluate(e => getComputedStyle(e).color);
          const opacity = await el.evaluate(e => getComputedStyle(e).opacity);
          // Ensure text is not invisible
          expect(parseFloat(opacity)).toBeGreaterThan(0.5);
          console.log(`Error element: color=${color}, opacity=${opacity}`);
        }
      }
    }
  });

  test('Focus ring visible sur les éléments interactifs', async ({ page }) => {
    await page.goto('/login');
    await page.waitForLoadState('networkidle').catch(() => {});

    // Tab through elements
    await page.keyboard.press('Tab');
    await page.waitForTimeout(200);

    const focusedElement = page.locator(':focus');
    if (await focusedElement.isVisible().catch(() => false)) {
      const outline = await focusedElement.evaluate(e => {
        const styles = getComputedStyle(e);
        return {
          outline: styles.outline,
          boxShadow: styles.boxShadow,
          border: styles.borderColor,
        };
      });
      // Should have some visible focus indicator
      const hasFocusIndicator = outline.outline !== 'none' ||
        outline.boxShadow !== 'none' ||
        outline.border !== '';
      if (!hasFocusIndicator) {
        console.warn('⚠ No visible focus indicator on first tab target');
      }
    }
  });
});