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

test.describe('NAVIGATION — Pages publiques (sans auth)', () => {
  test('01. Page d\'accueil / redirige vers /dashboard ou /login', async ({ page }) => {
    const errors = await assertPageLoads(page, '/');
    expect(errors.length).toBeLessThan(3);
    // Root / should redirect to /dashboard (if auth) or /login (if not)
    await expect(page).toHaveURL(/dashboard|login/);
    await assertNoDebugText(page);
  });

  test('02. Page /login se charge', async ({ page }) => {
    await assertPageLoads(page, '/login');
  });

  test('03. Page /register se charge', async ({ page }) => {
    await assertPageLoads(page, '/register');
  });

  test('04. Page /discover redirige vers /login si non authentifié', async ({ page }) => {
    test.setTimeout(60_000);
    await page.goto('/discover', { waitUntil: 'domcontentloaded' });
    await page.waitForLoadState('networkidle').catch(() => {});
    // /discover is a protected route, should redirect to login
    // The app may take time to check auth and redirect
    await expect(page).toHaveURL(/login/, { timeout: 20_000 });
  });

  test('05. Page 404 pour route inexistante', async ({ page }) => {
    await navigateTo(page, '/this-page-does-not-exist-12345');
    const body = await page.textContent('body');
    // Should display a proper 404, not a crash
    expect(body).toMatch(/404|not found|page.*introuvable|n'existe pas/i);
  });
});

test.describe('NAVIGATION — Pages authentifiées', () => {
  test.beforeEach(async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
  });

  const authenticatedPages = [
    { path: '/dashboard', name: 'Dashboard' },
    { path: '/library', name: 'Bibliothèque' },
    { path: '/playlists', name: 'Playlists' },
    { path: '/notifications', name: 'Notifications' },
    { path: '/chat', name: 'Chat' },
    { path: '/settings', name: 'Paramètres' },
    { path: '/profile', name: 'Profil' },
    { path: '/feed', name: 'Feed' },
    { path: '/discover', name: 'Découverte' },
    { path: '/search', name: 'Recherche' },
  ];

  for (const { path, name } of authenticatedPages) {
    test(`06. Page ${name} (${path}) se charge @critical`, async ({ page }) => {
      await navigateTo(page, path);

      // No crash
      const body = await page.textContent('body') || '';
      expect(body).not.toMatch(/500|Internal Server Error|unexpected error|something went wrong/i);

      // Page has content (not just an infinite spinner)
      expect(body.length).toBeGreaterThan(100);

      await assertNoDebugText(page);
    });
  }
});

test.describe('NAVIGATION — Layout principal', () => {
  test.beforeEach(async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
  });

  test('07. La sidebar est visible @critical', async ({ page }) => {
    // Check login succeeded
    await navigateTo(page, '/dashboard');

    const sidebar = page.getByTestId('app-sidebar');
    await expect(sidebar).toBeVisible({ timeout: 10_000 });
  });

  test('08. Le header est visible et le logo est dans la sidebar', async ({ page }) => {
    await navigateTo(page, '/dashboard');

    // Header has data-testid="app-header"
    const header = page.locator('[data-testid="app-header"], header').first();
    await expect(header).toBeVisible({ timeout: 5_000 });

    // Logo "veza" is an h2 in the sidebar — it may be visually hidden when collapsed but still attached
    const sidebar = page.getByTestId('app-sidebar');
    await expect(sidebar).toBeVisible({ timeout: 5_000 });
    // The h2 "veza" may be collapsed (opacity-0 max-w-0) but still in DOM
    await expect(sidebar.locator('h2')).toBeAttached();
  });

  test('09. Les liens de navigation principaux sont présents et cliquables', async ({ page }) => {
    await navigateTo(page, '/dashboard');

    const navLinks = [
      /dashboard/i,
      /discover/i,
      /library/i,
    ];

    const sidebar = page.getByTestId('app-sidebar');

    for (const linkText of navLinks) {
      const link = sidebar.getByRole('link', { name: linkText })
        .or(sidebar.getByRole('button', { name: linkText }))
        .first();

      await expect(link).toBeVisible({ timeout: 5_000 });
    }
  });

  test('10. Le player bar est présent dans le DOM', async ({ page }) => {
    await navigateTo(page, '/dashboard');

    const playerBar = page.getByTestId('global-player');

    // The player bar container should exist in the DOM even if not visible (nothing playing)
    await expect(playerBar).toBeAttached({ timeout: 5_000 });
  });

  test('10b. Le search est dans le header avec role="search"', async ({ page }) => {
    await navigateTo(page, '/dashboard');

    // Header search: data-testid="search-input" type="search" inside role="search" container
    const searchInput = page.locator('[data-testid="search-input"]')
      .or(page.locator('[role="search"] input'))
      .or(page.locator('input[type="search"]'));
    // Check it exists in DOM even if hidden on small viewports (hidden md:block)
    await expect(searchInput.first()).toBeAttached({ timeout: 5_000 });
  });
});

test.describe('NAVIGATION — Responsive mobile @mobile', () => {
  test.beforeEach(async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
  });

  test('11. La page d\'accueil est utilisable sur mobile', async ({ page }) => {
    await navigateTo(page, '/dashboard');

    // No horizontal scroll (sign of broken layout)
    const hasHorizontalScroll = await page.evaluate(() => {
      return document.documentElement.scrollWidth > document.documentElement.clientWidth;
    });
    expect(hasHorizontalScroll).toBeFalsy();
  });

  test('12. Le menu hamburger fonctionne sur mobile', async ({ page }) => {
    await navigateTo(page, '/dashboard');

    const menuButton = page.getByRole('button', { name: /menu/i })
      .or(page.locator('[class*="hamburger"]'))
      .or(page.locator('[class*="menu-toggle"]'))
      .or(page.getByTestId('mobile-menu'));

    if (await menuButton.isVisible().catch(() => false)) {
      await menuButton.click();

      // Menu should open
      const sidebar = page.getByTestId('app-sidebar');
      await expect(sidebar).toBeVisible({ timeout: 3_000 });
    }
  });
});

test.describe('NAVIGATION — Internationalisation (i18n)', () => {
  test('13. Changement de langue FR -> EN', async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
    await navigateTo(page, '/settings');

    // Find the language selector
    const langSelector = page.getByLabel(/langue|language/i)
      .or(page.locator('select[name*="lang"]'))
      .or(page.getByTestId('language-selector'));

    const langVisible = await langSelector.isVisible().catch(() => false);
    if (!langVisible) {
      test.skip(true, 'Language selector not found in /settings');
      return;
    }

    await langSelector.selectOption({ label: /english/i });
    await page.waitForTimeout(1_000);

    // Verify English text appears
    const body = await page.textContent('body') || '';
    expect(body).toMatch(/settings|profile|account|logout/i);
  });

  test('14. Pas de clés i18n brutes visibles (ex: "auth.login.title")', async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);

    const pagesToCheck = ['/dashboard', '/discover', '/settings', '/library'];

    for (const path of pagesToCheck) {
      await navigateTo(page, path);
      const body = await page.textContent('body') || '';

      // Pattern: "word.word.word" that looks like an untranslated i18n key
      const i18nKeyPattern = /\b[a-z]+\.[a-z]+\.[a-z]+\b/g;
      const matches = body.match(i18nKeyPattern) || [];
      // Filter false positives (URLs, etc.)
      const suspiciousKeys = matches.filter(m =>
        !m.includes('http') && !m.includes('www') && !m.includes('com') &&
        !m.includes('min') && !m.includes('max') && m.length < 50
      );

      expect(suspiciousKeys.length).toBeLessThanOrEqual(5);
    }
  });
});