import { test } from '@playwright/test';
import { LoginPage } from '../page-objects/LoginPage.js';

test.describe('🔧 Button Fix Test - Identify Disabled State Issue', () => {
  let loginPage;

  test.beforeEach(async ({ page }) => {
    loginPage = new LoginPage(page);
    await loginPage.navigate();
  });

  test('🐛 Debug Button Disabled State Logic', async ({ page }) => {
    console.log('\n=== DEBUGGING BUTTON DISABLED STATE ===');
    
    // Helper function to get detailed button state
    const getButtonState = async () => {
      return await page.evaluate(() => {
        const usernameInput = document.getElementById('username');
        const passwordInput = document.querySelector('#password input');
        const button = document.querySelector('button[type="submit"]');

        // Get Vue component data if available
        let vueData = null;
        
        try {
          // Try to access Vue component state
          const loginComponent = document.querySelector('.login-container').__vueParentComponent;
          if (loginComponent && loginComponent.setupState) {
            vueData = {
              credentials: loginComponent.setupState.credentials?.value,
              formErrors: loginComponent.setupState.formErrors?.value,
              isFormValid: loginComponent.setupState.isFormValid?.value
            };
          }
        } catch (e) {
          console.log('Could not access Vue state:', e.message);
        }
        
        return {
          dom: {
            usernameValue: usernameInput?.value || '',
            passwordValue: passwordInput?.value || '',
            buttonDisabled: button?.disabled,
            buttonClasses: button?.className,
            usernameRequired: usernameInput?.required,
            passwordRequired: passwordInput?.required
          },
          vue: vueData
        };
      });
    };

    // Test 1: Initial state
    console.log('\n--- Test 1: Initial State ---');
    let state = await getButtonState();
    console.log('Initial state:', JSON.stringify(state, null, 2));
    
    // Test 2: Fill only username
    console.log('\n--- Test 2: Username Only ---');
    await page.fill('#username', 'test_user');
    await page.waitForTimeout(500); // Wait for Vue reactivity
    state = await getButtonState();
    console.log('Username only state:', JSON.stringify(state, null, 2));
    
    // Test 3: Fill both fields
    console.log('\n--- Test 3: Both Fields ---');
    await page.fill('#password input', 'test_password');
    await page.waitForTimeout(500); // Wait for Vue reactivity
    state = await getButtonState();
    console.log('Both fields state:', JSON.stringify(state, null, 2));
    
    // Test 4: Check if validation triggers
    console.log('\n--- Test 4: Trigger Validation ---');
    await page.click('.login-card'); // Click outside to blur
    await page.waitForTimeout(500);
    state = await getButtonState();
    console.log('After blur state:', JSON.stringify(state, null, 2));
    
    // Test 5: Manual button click attempt
    console.log('\n--- Test 5: Button Click Attempt ---');
    const isClickable = await page.evaluate(() => {
      const button = document.querySelector('button[type="submit"]');
      return !button.disabled;
    });
    console.log('Button is clickable:', isClickable);
    
    if (isClickable) {
      console.log('✅ Button should be clickable');
    } else {
      console.log('❌ Button is still disabled - investigating why...');
      
      // Check validation logic
      const validationState = await page.evaluate(() => {
        const usernameInput = document.getElementById('username');
        const passwordInput = document.querySelector('#password input');
        
        return {
          usernameEmpty: !usernameInput.value.trim(),
          passwordEmpty: !passwordInput.value.trim(),
          usernameLength: usernameInput.value.length,
          passwordLength: passwordInput.value.length,
          formValidity: usernameInput.form?.checkValidity()
        };
      });
      
      console.log('Validation details:', JSON.stringify(validationState, null, 2));
    }
    
    // Take screenshot for analysis
    await page.screenshot({ path: 'button-debug.png', fullPage: true });
  });

  test('🔄 Test Button Reactivity with Real Input', async ({ page }) => {
    console.log('\n=== TESTING BUTTON REACTIVITY ===');
    
    // Monitor button state changes
    const buttonStates = [];
    
    const checkButton = async (action) => {
      const disabled = await page.locator('button[type="submit"]').isDisabled();
      buttonStates.push({ action, disabled });
      console.log(`After ${action}: disabled = ${disabled}`);
    };
    
    await checkButton('initial load');
    
    // Type character by character to see when button enables
    const username = 'test';
    const password = 'pass';
    
    for (let i = 0; i < username.length; i++) {
      await page.fill('#username', username.substring(0, i + 1));
      await page.waitForTimeout(100);
      await checkButton(`username: "${username.substring(0, i + 1)}"`);
    }
    
    for (let i = 0; i < password.length; i++) {
      await page.fill('#password input', password.substring(0, i + 1));
      await page.waitForTimeout(100);
      await checkButton(`password: "${password.substring(0, i + 1)}"`);
    }
    
    console.log('\nButton state progression:');
    buttonStates.forEach((state, index) => {
      console.log(`${index + 1}. ${state.action}: ${state.disabled ? 'DISABLED' : 'ENABLED'}`);
    });
  });

  test('🎯 Force Button Enable Test', async ({ page }) => {
    console.log('\n=== TESTING FORCED BUTTON ENABLE ===');
    
    // Fill valid data
    await page.fill('#username', 'valid_user');
    await page.fill('#password input', 'valid_password');
    
    // Wait for Vue reactivity  
    await page.waitForTimeout(1000);
    
    // Force enable button via JavaScript if needed
    const buttonEnabled = await page.evaluate(() => {
      const button = document.querySelector('button[type="submit"]');
      const wasDisabled = button.disabled;
      
      // Try to force enable for testing
      button.disabled = false;
      button.classList.remove('p-disabled');
      
      return { wasDisabled, nowDisabled: button.disabled };
    });
    
    console.log('Button enable attempt:', buttonEnabled);
    
    if (!buttonEnabled.nowDisabled) {
      console.log('✅ Button was successfully enabled');
      
      // Try to click it now
      await page.click('button[type="submit"]');
      console.log('✅ Button click succeeded');
      
      // Wait for potential API call
      await page.waitForTimeout(2000);
      
      // Check if login was attempted
      const currentUrl = page.url();
      console.log('Current URL after click:', currentUrl);
      
    } else {
      console.log('❌ Could not enable button');
    }
  });
});