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

// =============================================================================
// FORMS — Validation des formulaires @feature-forms
//
// Ce fichier teste la validation cote client de TOUS les formulaires
// de l'application : soumission vide, champs invalides, messages d'erreur.
// =============================================================================

// =============================================================================
// LOGIN FORM VALIDATION
// =============================================================================

test.describe('FORMS — Login form validation @feature-forms', () => {
  test.beforeEach(async ({ page }) => {
    await navigateTo(page, '/login');
    await page.getByTestId('login-form').waitFor({ state: 'visible', timeout: 10_000 });
  });

  test('01. Soumettre login vide affiche erreurs de validation @critical', async ({ page }) => {
    const submitBtn = page.getByTestId('login-submit');
    await submitBtn.click();

    // Should stay on login page
    await expect(page).toHaveURL(/login/);

    // Check for validation errors (custom or HTML5 native)
    const body = await page.textContent('body') || '';
    const hasCustomError = /required|obligatoire|email|invalid|invalide/i.test(body);

    const emailInput = page.locator('input[type="email"]').first();
    const emailValidation = await emailInput.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    const passwordInput = page.locator('input[type="password"]').first();
    const passwordValidation = await passwordInput.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    const hasValidation = hasCustomError || emailValidation.length > 0 || passwordValidation.length > 0;
    expect(hasValidation).toBeTruthy();
    console.log(`  Empty login: validation shown (email: "${emailValidation}", password: "${passwordValidation}")`);
  });

  test('02. Soumettre login avec email seul affiche erreur mot de passe', async ({ page }) => {
    const emailInput = page.locator('input[type="email"]');
    await emailInput.fill('test@example.com');

    const submitBtn = page.getByTestId('login-submit');
    await submitBtn.click();

    // Should stay on login
    await expect(page).toHaveURL(/login/);

    // Password should show validation
    const passwordInput = page.locator('input[type="password"]').first();
    const validationMessage = await passwordInput.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    const body = await page.textContent('body') || '';
    const hasError = validationMessage.length > 0 || /required|obligatoire|password|mot de passe/i.test(body);
    expect(hasError).toBeTruthy();
    console.log(`  Email only: password validation shown ("${validationMessage}")`);
  });

  test('03. Soumettre login avec password seul affiche erreur email', async ({ page }) => {
    const passwordInput = page.locator('input[type="password"]').first();
    await passwordInput.fill('Password123!');

    const submitBtn = page.getByTestId('login-submit');
    await submitBtn.click();

    // Should stay on login
    await expect(page).toHaveURL(/login/);

    // Email should show validation
    const emailInput = page.locator('input[type="email"]').first();
    const validationMessage = await emailInput.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    const body = await page.textContent('body') || '';
    const hasError = validationMessage.length > 0 || /required|obligatoire|email/i.test(body);
    expect(hasError).toBeTruthy();
    console.log(`  Password only: email validation shown ("${validationMessage}")`);
  });

  test('04. Email invalide format affiche erreur validation', async ({ page }) => {
    const emailInput = page.locator('input[type="email"]');
    await emailInput.fill('not-an-email');

    const passwordInput = page.locator('input[type="password"]').first();
    await passwordInput.fill('Password123!');

    const submitBtn = page.getByTestId('login-submit');
    await submitBtn.click();

    // Should stay on login
    await expect(page).toHaveURL(/login/);

    // Check for email validation error
    const emailEl = page.locator('input[type="email"]').first();
    const validationMessage = await emailEl.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    const body = await page.textContent('body') || '';
    const hasError = validationMessage.length > 0 || /invalid|invalide|email.*format|format.*email/i.test(body);
    expect(hasError).toBeTruthy();
    console.log(`  Invalid email format: validation shown ("${validationMessage}")`);
  });

  test('05. Identifiants incorrects affiche erreur serveur sans crash', async ({ page }) => {
    const emailInput = page.locator('input[type="email"]');
    await emailInput.clear();
    await emailInput.fill('nonexistent@example.com');

    const passwordInput = page.locator('input[type="password"]').first();
    await passwordInput.clear();
    await passwordInput.fill('WrongPassword999!');

    const submitBtn = page.getByTestId('login-submit');
    await submitBtn.click();

    await page.waitForTimeout(3_000);

    // Should stay on login
    await expect(page).toHaveURL(/login/);

    // Should show an error alert
    const body = await page.textContent('body') || '';
    expect(body).not.toMatch(/crash|TypeError|Cannot read/i);

    const errorAlert = page.getByRole('alert');
    const hasAlert = await errorAlert.isVisible().catch(() => false);
    const hasErrorText = /incorrect|invalid|erreur|error|unauthorized|identifiants/i.test(body);
    console.log(`  Wrong credentials: ${hasAlert ? 'alert shown' : hasErrorText ? 'error text shown' : 'handled'}`);
  });
});

// =============================================================================
// REGISTER FORM VALIDATION
// =============================================================================

test.describe('FORMS — Register form validation @feature-forms', () => {
  test.beforeEach(async ({ page }) => {
    await navigateTo(page, '/register');
    await page.getByTestId('register-form').waitFor({ state: 'visible', timeout: 10_000 });
  });

  test('06. Soumettre register vide affiche erreurs multiples @critical', async ({ page }) => {
    const submitBtn = page.getByTestId('register-submit');
    await submitBtn.click();

    // Should stay on register page
    await expect(page).toHaveURL(/register/);

    // Check for validation errors
    const body = await page.textContent('body') || '';
    const hasCustomErrors = /required|obligatoire|invalid|invalide|trop court|too short/i.test(body);

    const usernameInput = page.locator('#register-username');
    const usernameValidation = await usernameInput.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    const hasValidation = hasCustomErrors || usernameValidation.length > 0;
    expect(hasValidation).toBeTruthy();
    console.log(`  Empty register: validation shown (${hasCustomErrors ? 'custom errors' : 'native validation'})`);
  });

  test('07. Username trop court (< 3 chars) affiche erreur', async ({ page }) => {
    const usernameInput = page.locator('#register-username');
    await usernameInput.fill('ab');
    await usernameInput.blur();

    await page.waitForTimeout(500);

    const body = await page.textContent('body') || '';
    const hasError = /trop court|too short|minimum|au moins|at least|3.*caract|3.*char/i.test(body);

    const validationMessage = await usernameInput.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    const validated = hasError || validationMessage.length > 0;
    console.log(`  Short username: ${validated ? 'error shown' : 'no explicit error (may validate on submit)'}`);
  });

  test('08. Mot de passe trop court (< 12 chars) affiche erreur', async ({ page }) => {
    const passwordInput = page.locator('#register-password');
    await passwordInput.fill('Short1!');
    await passwordInput.blur();

    await page.waitForTimeout(500);

    const body = await page.textContent('body') || '';
    const hasError = /trop court|too short|minimum|au moins|at least|caract|char|password/i.test(body);

    const validationMessage = await passwordInput.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    const validated = hasError || validationMessage.length > 0;
    console.log(`  Short password: ${validated ? 'error shown' : 'no explicit error (may validate on submit)'}`);
  });

  test('09. Mots de passe ne correspondent pas affiche erreur', async ({ page }) => {
    const passwordInput = page.locator('#register-password');
    await passwordInput.fill('SecurePassword123!@#');

    const confirmInput = page.locator('#register-password_confirm');
    await confirmInput.fill('DifferentPassword456!@#');
    await confirmInput.blur();

    await page.waitForTimeout(500);

    const body = await page.textContent('body') || '';
    const hasError = /ne correspondent pas|do not match|don't match|mismatch|identiques|match/i.test(body);

    // Also try submitting to trigger validation
    if (!hasError) {
      // Fill other required fields first
      await page.locator('#register-username').fill('testuser');
      await page.locator('#register-email').fill('test@example.com');

      const termsCheckbox = page.locator('#register-terms');
      if (await termsCheckbox.isVisible().catch(() => false)) {
        await termsCheckbox.check();
      }

      const submitBtn = page.getByTestId('register-submit');
      await submitBtn.click();
      await page.waitForTimeout(1_000);

      const bodyAfterSubmit = await page.textContent('body') || '';
      const hasErrorAfterSubmit = /ne correspondent pas|do not match|don't match|mismatch|identiques|match/i.test(bodyAfterSubmit);
      console.log(`  Mismatched passwords: ${hasErrorAfterSubmit ? 'error shown on submit' : 'check behavior'}`);
    } else {
      console.log('  Mismatched passwords: error shown on blur');
    }

    // Should stay on register regardless
    await expect(page).toHaveURL(/register/);
  });

  test('10. Terms non cochees affiche erreur', async ({ page }) => {
    // Fill all fields except terms
    await page.locator('#register-username').fill('testuser123');
    await page.locator('#register-email').fill(`terms-test-${Date.now()}@example.com`);
    await page.locator('#register-password').fill('SecurePassword123!@#');
    await page.locator('#register-password_confirm').fill('SecurePassword123!@#');

    // Make sure terms is NOT checked
    const termsCheckbox = page.locator('#register-terms');
    if (await termsCheckbox.isVisible().catch(() => false)) {
      if (await termsCheckbox.isChecked()) {
        await termsCheckbox.uncheck();
      }
    }

    const submitBtn = page.getByTestId('register-submit');
    await submitBtn.click();

    await page.waitForTimeout(1_000);

    // Should stay on register page
    await expect(page).toHaveURL(/register/);

    const body = await page.textContent('body') || '';
    const hasTermsError = /terms|conditions|accepter|accept|cgu|tos/i.test(body);

    const termsValidation = await termsCheckbox.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    console.log(`  Terms unchecked: ${hasTermsError || termsValidation.length > 0 ? 'error shown' : 'form blocked (native or custom)'}`);
  });

  test('11. Email invalide dans le formulaire d\'inscription affiche erreur', async ({ page }) => {
    await page.locator('#register-email').fill('invalid-email-format');
    await page.locator('#register-email').blur();

    await page.waitForTimeout(500);

    const body = await page.textContent('body') || '';
    const hasError = /email.*invalide|invalid.*email|format/i.test(body);

    const emailInput = page.locator('#register-email');
    const validationMessage = await emailInput.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    const validated = hasError || validationMessage.length > 0;
    expect(validated).toBeTruthy();
    console.log(`  Invalid register email: error shown ("${validationMessage}")`);
  });
});

// =============================================================================
// FORGOT PASSWORD FORM VALIDATION
// =============================================================================

test.describe('FORMS — Forgot password form validation @feature-forms', () => {
  test.beforeEach(async ({ page }) => {
    await navigateTo(page, '/forgot-password');
  });

  test('12. Soumettre sans email affiche erreur', async ({ page }) => {
    const submitBtn = page.getByRole('button', { name: /reset|réinitialiser|send|envoyer|submit/i });
    if (!(await submitBtn.isVisible().catch(() => false))) {
      console.log('  Forgot password form not found (skipping)');
      return;
    }

    await submitBtn.click();

    const body = await page.textContent('body') || '';
    const hasError = /required|obligatoire|email|invalid|invalide/i.test(body);

    const emailInput = page.locator('input[type="email"]').first();
    const validationMessage = await emailInput.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    const validated = hasError || validationMessage.length > 0;
    expect(validated).toBeTruthy();
    console.log(`  Empty forgot password: validation shown ("${validationMessage}")`);
  });

  test('13. Email invalide affiche erreur', async ({ page }) => {
    const emailInput = page.locator('input[type="email"]').first()
      .or(page.getByLabel(/email/i).first());

    if (!(await emailInput.isVisible().catch(() => false))) {
      console.log('  Forgot password email input not found (skipping)');
      return;
    }

    await emailInput.fill('not-an-email');

    const submitBtn = page.getByRole('button', { name: /reset|réinitialiser|send|envoyer|submit/i });
    await submitBtn.click();

    const validationMessage = await emailInput.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    const body = await page.textContent('body') || '';
    const hasError = validationMessage.length > 0 || /invalid|invalide|format/i.test(body);
    expect(hasError).toBeTruthy();
    console.log(`  Invalid email in forgot password: error shown ("${validationMessage}")`);
  });

  test('14. Email valide affiche message de succes', async ({ page }) => {
    const emailInput = page.locator('input[type="email"]').first()
      .or(page.getByLabel(/email/i).first());

    if (!(await emailInput.isVisible().catch(() => false))) {
      console.log('  Forgot password email input not found (skipping)');
      return;
    }

    await emailInput.fill('test@example.com');

    const submitBtn = page.getByRole('button', { name: /reset|réinitialiser|send|envoyer|submit/i });
    await submitBtn.click();

    await page.waitForTimeout(3_000);

    const body = await page.textContent('body') || '';
    // Should show a success message (email sent) or an error (email not found)
    // Either way, should not crash
    expect(body).not.toMatch(/crash|TypeError|Cannot read/i);

    const hasSuccess = /envoyé|sent|check.*email|vérif.*email|lien.*envoyé|link.*sent|succès|success/i.test(body);
    const hasError = /not found|introuvable|error|erreur/i.test(body);
    console.log(`  Valid email forgot password: ${hasSuccess ? 'success message' : hasError ? 'error (expected if email not in DB)' : 'response received'}`);
  });
});

// =============================================================================
// PLAYLIST CREATE FORM VALIDATION
// =============================================================================

test.describe('FORMS — Playlist create form validation @feature-forms', () => {
  test.beforeEach(async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
  });

  test('15. Creer playlist sans titre affiche erreur', async ({ page }) => {
    await navigateTo(page, '/playlists');

    const createBtn = page.getByRole('button', { name: /créer|create|nouvelle|new/i }).first()
      .or(page.getByRole('link', { name: /créer|create|nouvelle|new/i }).first());

    if (!(await createBtn.isVisible().catch(() => false))) {
      console.log('  Create playlist button not found (skipping)');
      return;
    }

    await createBtn.click();
    await page.waitForTimeout(1_000);

    // Try to submit without filling the title — scope to dialog to avoid strict mode violation
    const dialog = page.locator('[role="dialog"]').first();
    const dialogVisible = await dialog.isVisible().catch(() => false);
    const saveBtn = dialogVisible
      ? dialog.getByRole('button', { name: /créer|create|sauvegarder|save|ok|ajouter|add/i }).first()
      : page.getByRole('button', { name: /créer|create|sauvegarder|save|ok|ajouter|add/i }).first();
    if (!(await saveBtn.isVisible().catch(() => false))) {
      console.log('  Save button not found after clicking create (skipping)');
      return;
    }

    await saveBtn.click();
    await page.waitForTimeout(1_000);

    const body = await page.textContent('body') || '';
    expect(body).not.toMatch(/crash|TypeError|Cannot read/i);

    const hasError = /required|obligatoire|titre|title|nom|name|vide|empty/i.test(body);

    const nameInput = page.getByLabel(/nom|name|titre|title/i).first()
      .or(page.getByPlaceholder(/nom|name|titre/i).first());
    const validationMessage = await nameInput.evaluate(
      (el: HTMLInputElement) => el.validationMessage,
    ).catch(() => '');

    const validated = hasError || validationMessage.length > 0;
    console.log(`  Empty playlist title: ${validated ? 'error shown' : 'form blocked or handled'}`);
  });

  test('16. Creer playlist avec titre valide fonctionne', async ({ page }) => {
    await navigateTo(page, '/playlists');

    const createBtn = page.getByRole('button', { name: /créer|create|nouvelle|new/i }).first()
      .or(page.getByRole('link', { name: /créer|create|nouvelle|new/i }).first());

    if (!(await createBtn.isVisible().catch(() => false))) {
      console.log('  Create playlist button not found (skipping)');
      return;
    }

    await createBtn.click();
    await page.waitForTimeout(1_000);

    const nameInput = page.getByLabel(/nom|name|titre|title/i).first()
      .or(page.getByPlaceholder(/nom|name|titre/i).first());

    if (!(await nameInput.isVisible().catch(() => false))) {
      console.log('  Playlist name input not found (skipping)');
      return;
    }

    const playlistName = `E2E Validation Test ${Date.now()}`;
    await nameInput.fill(playlistName);

    // Scope to dialog to avoid strict mode violation (sidebar "Create" + dialog "Create")
    const dialog = page.locator('[role="dialog"]').first();
    const dialogVisible = await dialog.isVisible().catch(() => false);
    let saveBtn: import('@playwright/test').Locator;
    if (dialogVisible) {
      saveBtn = dialog.getByRole('button', { name: /créer|create|sauvegarder|save|ok|ajouter|add/i }).first();
    } else {
      // Fallback: also try [data-state="open"] overlays
      const overlay = page.locator('[data-state="open"]').first();
      const overlayVisible = await overlay.isVisible().catch(() => false);
      if (overlayVisible) {
        saveBtn = overlay.getByRole('button', { name: /créer|create|sauvegarder|save|ok|ajouter|add/i }).first();
      } else {
        saveBtn = page.getByRole('button', { name: /créer|create|sauvegarder|save|ok|ajouter|add/i }).first();
      }
    }
    await saveBtn.click();

    await page.waitForTimeout(3_000);

    const body = await page.textContent('body') || '';
    expect(body).not.toMatch(/crash|TypeError|Cannot read/i);

    // Should either show the new playlist or redirect to it
    const success = body.includes(playlistName) || page.url().includes('/playlists/');
    console.log(`  Create playlist with title: ${success ? 'success' : 'check behavior'}`);
  });
});

// =============================================================================
// SETTINGS FORMS VALIDATION
// =============================================================================

test.describe('FORMS — Settings forms validation @feature-forms', () => {
  test.beforeEach(async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
    await navigateTo(page, '/settings');
  });

  test('17. Changer mot de passe — champs vides affiche erreur', async ({ page }) => {
    // Find the password change section
    const passwordSection = page.getByText(/changer.*mot de passe|change.*password|modifier.*mot de passe/i);
    if (!(await passwordSection.isVisible().catch(() => false))) {
      console.log('  Password change section not found (skipping)');
      return;
    }

    // Look for a submit button in the password section
    const changeBtn = page.getByRole('button', { name: /changer|change|modifier|update|save|sauvegarder/i });
    const allButtons = await changeBtn.all();

    // Try clicking the button closest to password section
    for (const btn of allButtons) {
      const btnText = await btn.textContent().catch(() => '');
      if (/password|mot de passe|changer|change|modifier/i.test(btnText || '')) {
        await btn.click();
        break;
      }
    }
    // Fallback: click first matching button
    if (allButtons.length > 0) {
      await allButtons[0].click();
    }

    await page.waitForTimeout(1_000);

    const body = await page.textContent('body') || '';
    expect(body).not.toMatch(/crash|TypeError|Cannot read/i);

    const hasError = /required|obligatoire|vide|empty|remplir|fill/i.test(body);
    console.log(`  Empty password change: ${hasError ? 'error shown' : 'handled'}`);
  });

  test('18. Changer mot de passe — nouveau != confirmation affiche erreur', async ({ page }) => {
    // Find password fields
    const currentPassword = page.getByLabel(/actuel|current/i).first()
      .or(page.locator('input[name*="current_password"]').first());
    const newPassword = page.getByLabel(/nouveau|new/i).first()
      .or(page.locator('input[name*="new_password"]').first());
    const confirmPassword = page.getByLabel(/confirm/i).first()
      .or(page.locator('input[name*="confirm"]').first());

    if (!(await currentPassword.isVisible().catch(() => false))) {
      console.log('  Password change fields not found (skipping)');
      return;
    }

    await currentPassword.fill('OldPassword123!');
    await newPassword.fill('NewPassword123!@#');
    await confirmPassword.fill('DifferentPassword456!@#');

    const changeBtn = page.getByRole('button', { name: /changer|change|modifier|update|save|sauvegarder/i }).first();
    await changeBtn.click();

    await page.waitForTimeout(1_000);

    // Should stay on settings and show error
    const body = await page.textContent('body') || '';
    expect(body).not.toMatch(/crash|TypeError|Cannot read/i);

    const hasError = /ne correspondent pas|do not match|don't match|mismatch|identiques/i.test(body);
    console.log(`  Mismatched new passwords: ${hasError ? 'error shown' : 'handled'}`);
  });
});

// =============================================================================
// SEARCH FORM VALIDATION
// =============================================================================

test.describe('FORMS — Search form validation @feature-forms', () => {
  test.beforeEach(async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
  });

  test('19. Recherche vide ne crash pas, affiche etat initial', async ({ page }) => {
    await navigateTo(page, '/search');

    const searchInput = page.locator('input[role="combobox"][aria-label="Search"]')
      .or(page.getByPlaceholder(/search for tracks/i))
      .or(page.locator('[role="search"] input'));

    if (!(await searchInput.first().isVisible().catch(() => false))) {
      console.log('  Search input not found (skipping)');
      return;
    }

    // Clear and press Enter
    await searchInput.first().fill('');
    await searchInput.first().press('Enter');
    await page.waitForTimeout(1_000);

    await assertNotBroken(page);

    const body = await page.textContent('body') || '';
    expect(body).not.toMatch(/crash|TypeError|Cannot read/i);
    console.log('  Empty search: no crash, page stable');
  });

  test('20. Recherche avec caracteres speciaux ne crash pas', async ({ page }) => {
    await navigateTo(page, '/search');

    const searchInput = page.locator('input[role="combobox"][aria-label="Search"]')
      .or(page.getByPlaceholder(/search for tracks/i))
      .or(page.locator('[role="search"] input'));

    if (!(await searchInput.first().isVisible().catch(() => false))) {
      console.log('  Search input not found (skipping)');
      return;
    }

    const specialInputs = [
      '<script>alert(1)</script>',
      "'; DROP TABLE tracks; --",
      '../../etc/passwd',
      '%00%0d%0a',
      String.raw`\x00\x1f`,
    ];

    for (const input of specialInputs) {
      await searchInput.first().fill(input);
      await page.waitForTimeout(500);

      const body = await page.textContent('body') || '';
      expect(body).not.toMatch(/crash|TypeError|Cannot read|Unexpected token/i);
    }

    console.log('  Special characters in search: no crash');
  });

  test('21. Recherche avec espaces seuls ne crash pas', async ({ page }) => {
    await navigateTo(page, '/search');

    const searchInput = page.locator('input[role="combobox"][aria-label="Search"]')
      .or(page.getByPlaceholder(/search for tracks/i))
      .or(page.locator('[role="search"] input'));

    if (!(await searchInput.first().isVisible().catch(() => false))) {
      console.log('  Search input not found (skipping)');
      return;
    }

    await searchInput.first().fill('   ');
    await searchInput.first().press('Enter');
    await page.waitForTimeout(1_000);

    await assertNotBroken(page);
    console.log('  Whitespace-only search: no crash');
  });
});

// =============================================================================
// COMMENT FORM VALIDATION
// =============================================================================

test.describe('FORMS — Comment form validation @feature-forms', () => {
  test.beforeEach(async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
  });

  test('22. Soumettre commentaire vide ne l\'envoie pas', async ({ page }) => {
    // Navigate to a track page or discover page where comments might be
    await navigateTo(page, '/discover');

    // Try to find a track link and navigate to its detail page
    const trackLink = page.locator('a[href*="/tracks/"]').first();
    if (await trackLink.isVisible().catch(() => false)) {
      await trackLink.click();
      await page.waitForLoadState('networkidle').catch(() => {});
    }

    // Look for comment input
    const commentInput = page.getByPlaceholder(/comment|ajouter.*commentaire|écrire/i).first()
      .or(page.locator('textarea[name*="comment"]').first())
      .or(page.getByLabel(/comment/i).first());

    if (!(await commentInput.isVisible().catch(() => false))) {
      console.log('  Comment form not found on page (skipping)');
      return;
    }

    // Leave comment empty and try to submit
    await commentInput.fill('');

    const submitBtn = page.getByRole('button', { name: /publier|post|envoyer|send|comment/i }).first();
    if (!(await submitBtn.isVisible().catch(() => false))) {
      console.log('  Comment submit button not found (skipping)');
      return;
    }

    // Track if a request was sent
    let commentRequestSent = false;
    page.on('request', (req) => {
      if (req.url().includes('/comment') && req.method() === 'POST') {
        commentRequestSent = true;
      }
    });

    await submitBtn.click();
    await page.waitForTimeout(1_500);

    const body = await page.textContent('body') || '';
    expect(body).not.toMatch(/crash|TypeError|Cannot read/i);

    // The button might be disabled or validation might prevent sending
    console.log(`  Empty comment: ${commentRequestSent ? 'request sent (check server validation)' : 'not sent (client validation)'}`);
  });
});

// =============================================================================
// CONTACT / SUPPORT FORM VALIDATION
// =============================================================================

test.describe('FORMS — Support/Contact form validation @feature-forms', () => {
  test.beforeEach(async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
  });

  test('23. Soumettre formulaire support vide affiche erreur', async ({ page }) => {
    await navigateTo(page, '/support');

    // Give the page a moment to settle (redirects, lazy loading)
    await page.waitForTimeout(1_000);

    const url = page.url();
    const body = await page.textContent('body') || '';

    // /support may not exist — if we landed on 404, a redirect, or unrelated page, skip gracefully
    if (url.includes('/404') || url.includes('/login') || url.includes('/dashboard') || !/support|aide|help|ticket|contact/i.test(body)) {
      console.log(`  Support page not found (ended at ${url}) — skipping`);
      return;
    }

    // Look for a submit button — if the support page has no form, skip
    const submitBtn = page.getByRole('button', { name: /envoyer|send|soumettre|submit|créer|create|send message/i }).first();
    const submitVisible = await submitBtn.isVisible({ timeout: 5_000 }).catch(() => false);
    if (!submitVisible) {
      console.log('  Support submit button not found — support form may not exist (skipping)');
      return;
    }

    // The support form button is disabled when the form is empty (client validation).
    // Check if button is disabled — that IS the expected validation behavior.
    const isDisabled = await submitBtn.isDisabled().catch(() => false);
    if (isDisabled) {
      console.log('  Empty support form: submit button disabled (client validation works)');
      return;
    }

    // If not disabled, try clicking (force: true to bypass actionability)
    await submitBtn.click({ force: true, timeout: 5_000 });
    await page.waitForTimeout(1_000);

    const bodyAfter = await page.textContent('body') || '';
    expect(bodyAfter).not.toMatch(/crash|TypeError|Cannot read/i);

    const hasError = /required|obligatoire|vide|empty|remplir|fill|erreur|error/i.test(bodyAfter);
    console.log(`  Empty support form: ${hasError ? 'error shown' : 'handled'}`);
  });
});

// =============================================================================
// PROFILE EDIT FORM VALIDATION
// =============================================================================

test.describe('FORMS — Profile edit form validation @feature-forms', () => {
  test.beforeEach(async ({ page }) => {
    await loginViaAPI(page, CONFIG.users.listener.email, CONFIG.users.listener.password);
  });

  test('24. Vider le champ username dans le profil affiche erreur', async ({ page }) => {
    await navigateTo(page, '/settings');

    const usernameInput = page.getByLabel(/username|nom d'utilisateur|pseudo/i).first()
      .or(page.locator('input[name*="username"]').first());

    if (!(await usernameInput.isVisible().catch(() => false))) {
      // Try navigating to /profile/edit
      await navigateTo(page, '/profile/edit');
      const usernameInput2 = page.getByLabel(/username|nom d'utilisateur|pseudo/i).first()
        .or(page.locator('input[name*="username"]').first());

      if (!(await usernameInput2.isVisible().catch(() => false))) {
        console.log('  Username field not found in settings or profile (skipping)');
        return;
      }
    }

    // Clear the username field
    const input = page.getByLabel(/username|nom d'utilisateur|pseudo/i).first()
      .or(page.locator('input[name*="username"]').first());
    await input.fill('');

    const saveBtn = page.getByRole('button', { name: /save|sauvegarder|mettre à jour|update/i }).first();
    if (await saveBtn.isVisible().catch(() => false)) {
      await saveBtn.click();
      await page.waitForTimeout(1_000);
    }

    const body = await page.textContent('body') || '';
    expect(body).not.toMatch(/crash|TypeError|Cannot read/i);

    const hasError = /required|obligatoire|vide|empty|username/i.test(body);
    console.log(`  Empty username: ${hasError ? 'error shown' : 'handled'}`);
  });
});