const { By, until } = require('selenium-webdriver');

describe('Full Authentication Flow', () => {
  let driver;
  const timestamp = Date.now();
  const testUser = {
    name: `Test User ${timestamp}`,
    email: `test.user.${timestamp}@example.com`,
    password: 'SecurePass123!'
  };

  beforeAll(async () => {
    console.log('🚀 Starting full authentication flow test...');
    driver = await global.createDriver();
  });

  afterAll(async () => {
    console.log('🏁 Test complete - cleaning up...');
    await global.quitDriver(driver);
  });

  test('should complete full authentication flow: register → logout → login → dashboard', async () => {
    console.log(`\n📧 Test user email: ${testUser.email}\n`);

    // STEP 1: Navigate to application
    console.log('1️⃣ Navigating to application...');
    await driver.get(global.testConfig.baseUrl);
    await driver.sleep(2000);

    // Verify we're on the auth page
    const authContainer = await driver.wait(
      until.elementLocated(By.className('auth-container')),
      10000,
      'Auth container not found - might already be logged in'
    );
    console.log('   ✓ Auth page loaded');

    // STEP 2: Switch to registration form
    console.log('\n2️⃣ Switching to registration form...');
    const registerTab = await driver.findElement(By.css('.auth-toggle button:last-child'));
    await registerTab.click();
    await driver.sleep(1000);

    // Verify registration form is visible
    const regForm = await driver.wait(
      until.elementLocated(By.className('registration-form')),
      5000
    );
    console.log('   ✓ Registration form displayed');

    // STEP 3: Fill and submit registration form
    console.log('\n3️⃣ Filling registration form...');

    const nameField = await driver.findElement(By.id('name'));
    await nameField.clear();
    await nameField.sendKeys(testUser.name);
    console.log(`   ✓ Name: ${testUser.name}`);

    const emailField = await driver.findElement(By.id('email'));
    await emailField.clear();
    await emailField.sendKeys(testUser.email);
    console.log(`   ✓ Email: ${testUser.email}`);

    const passwordField = await driver.findElement(By.id('password'));
    await passwordField.clear();
    await passwordField.sendKeys(testUser.password);
    console.log('   ✓ Password: ***');

    const confirmPasswordField = await driver.findElement(By.id('password_confirmation'));
    await confirmPasswordField.clear();
    await confirmPasswordField.sendKeys(testUser.password);
    console.log('   ✓ Password confirmation: ***');

    // Submit registration
    console.log('\n4️⃣ Submitting registration...');
    const registerButton = await driver.findElement(By.css('.registration-form button[type="submit"]'));
    await registerButton.click();

    // Wait for registration to complete
    await driver.sleep(3000);

    // Check for success message or dashboard
    let registrationSuccessful = false;

    // First check for success message
    try {
      const successMessage = await driver.findElement(By.className('alert-success'));
      const successText = await successMessage.getText();
      console.log(`   ✓ ${successText}`);
      registrationSuccessful = true;
    } catch (e) {
      console.log('   ℹ️ No success message displayed');
    }

    // Check if we're automatically logged in (dashboard visible)
    try {
      const dashboard = await driver.findElement(By.className('dashboard'));
      const isDashboardVisible = await dashboard.isDisplayed();
      if (isDashboardVisible) {
        console.log('   ✓ Automatically logged in after registration');
        registrationSuccessful = true;

        // If auto-logged in, we should log out first to test login
        console.log('\n5️⃣ Logging out to test login flow...');

        // Look for logout button and click it (now in dropdown)
        try {
          // First click the user dropdown trigger
          const userMenuTrigger = await driver.findElement(By.className('user-menu-trigger'));
          await userMenuTrigger.click();
          await driver.sleep(500);

          // Then click the logout button in the dropdown
          const logoutButton = await driver.findElement(By.xpath("//button[contains(text(), 'Logout')]"));
          await logoutButton.click();
          await driver.sleep(2000);
          console.log('   ✓ Logged out successfully');
        } catch (e) {
          console.log('   ⚠️ Could not find logout button:', e.message);
        }
      }
    } catch (e) {
      console.log('   ℹ️ Not automatically logged in');
    }

    // Check for registration errors
    if (!registrationSuccessful) {
      try {
        const errorMessage = await driver.findElement(By.className('alert-error'));
        const errorText = await errorMessage.getText();
        console.error(`   ✗ Registration error: ${errorText}`);

        // Check for field-specific errors
        const fieldErrors = await driver.findElements(By.className('error-message'));
        for (let error of fieldErrors) {
          const text = await error.getText();
          if (text) console.error(`     - ${text}`);
        }

        throw new Error('Registration failed');
      } catch (e) {
        if (!e.message.includes('Registration failed')) {
          console.log('   ℹ️ No error messages found');
        }
      }
    }

    // STEP 6: Test login with the registered credentials
    console.log('\n6️⃣ Testing login with registered credentials...');

    // Make sure we're back at the auth page
    const isAuthPageVisible = await driver.findElements(By.className('auth-container'));
    if (isAuthPageVisible.length === 0) {
      // Navigate back to home if we're not on auth page
      await driver.get(global.testConfig.baseUrl);
      await driver.sleep(2000);
    }

    // Switch to login form
    const loginTab = await driver.findElement(By.css('.auth-toggle button:first-child'));
    await loginTab.click();
    await driver.sleep(1000);
    console.log('   ✓ Switched to login form');

    // Fill login form
    console.log('\n7️⃣ Filling login form...');
    const loginEmailField = await driver.findElement(By.css('.login-form #email'));
    await loginEmailField.clear();
    await loginEmailField.sendKeys(testUser.email);
    console.log(`   ✓ Email: ${testUser.email}`);

    const loginPasswordField = await driver.findElement(By.css('.login-form #password'));
    await loginPasswordField.clear();
    await loginPasswordField.sendKeys(testUser.password);
    console.log('   ✓ Password: ***');

    // Submit login
    console.log('\n8️⃣ Submitting login...');
    const loginButton = await driver.findElement(By.css('.login-form button[type="submit"]'));
    await loginButton.click();

    // Wait for login to complete
    await driver.sleep(3000);

    // STEP 9: Verify dashboard access
    console.log('\n9️⃣ Verifying dashboard access...');

    try {
      const dashboard = await driver.wait(
        until.elementLocated(By.className('dashboard')),
        10000
      );

      const isDashboardVisible = await dashboard.isDisplayed();
      expect(isDashboardVisible).toBe(true);
      console.log('   ✓ Dashboard is visible');

      // Look for welcome message or user info
      try {
        const dashboardHeading = await driver.findElement(By.css('.dashboard h2'));
        const headingText = await dashboardHeading.getText();
        console.log(`   ✓ Dashboard heading: "${headingText}"`);
      } catch (e) {
        console.log('   ℹ️ No dashboard heading found');
      }

      // Verify user info if available
      try {
        const userInfo = await driver.findElement(By.className('user-info'));
        const userText = await userInfo.getText();
        console.log(`   ✓ User info displayed: "${userText}"`);
      } catch (e) {
        console.log('   ℹ️ No user info element found');
      }

      console.log('\n✅ Full authentication flow completed successfully!');
      console.log(`   User "${testUser.name}" can register, logout, login, and access the dashboard.`);

    } catch (error) {
      // Login failed - check for error messages
      console.error('\n❌ Login failed or dashboard not accessible');

      try {
        const loginError = await driver.findElement(By.css('.login-form .alert-error'));
        const errorText = await loginError.getText();
        console.error(`   Error message: ${errorText}`);
      } catch (e) {
        console.error('   No specific error message found');
      }

      // Take a screenshot for debugging
      const screenshot = await driver.takeScreenshot();
      const fs = require('fs');
      const path = require('path');
      const screenshotPath = path.join(__dirname, `../screenshots/auth-flow-failure-${timestamp}.png`);

      // Create screenshots directory if it doesn't exist
      const screenshotsDir = path.join(__dirname, '../screenshots');
      if (!fs.existsSync(screenshotsDir)) {
        fs.mkdirSync(screenshotsDir);
      }

      fs.writeFileSync(screenshotPath, screenshot, 'base64');
      console.log(`   📸 Screenshot saved to: ${screenshotPath}`);

      throw new Error('Dashboard not accessible after login');
    }

  }, 120000); // 2-minute timeout for the full flow
});