import { test, expect, Page } from '@playwright/test';

/**
 * E2E Test Suite to Verify Bug Fixes
 * 
 * This test suite specifically verifies the fixes implemented for:
 * - Certificate reports 404 error
 * - Legacy URL redirects 
 * - Missing shortcode render methods
 */

// Helper function to take screenshots for verification
async function takeFixVerificationScreenshot(page: Page, testName: string) {
  await page.screenshot({
    path: `test-results/screenshots/fix-verification-${testName}.png`,
    fullPage: true
  });
}

test.describe('HVAC Plugin Bug Fixes Verification', () => {

  test('Certificate Reports page fix verification', async ({ page }) => {
    // Navigate to certificate reports page
    await page.goto('/trainer/certificate-reports/');
    await page.waitForLoadState('networkidle');
    
    // Take screenshot for verification
    await takeFixVerificationScreenshot(page, 'certificate-reports-fixed');
    
    // Should not show "This page doesn't seem to exist" anymore
    const bodyText = await page.locator('body').textContent();
    expect(bodyText).not.toContain("This page doesn't seem to exist");
    expect(bodyText).not.toContain("404");
    
    // Should either redirect to login or show certificate reports content
    const isLoginPage = page.url().includes('/training-login/') || 
                       bodyText?.includes('Trainer Login') ||
                       bodyText?.includes('Sign in to access');
    
    const isCertificatePage = bodyText?.includes('Certificate Reports') ||
                             bodyText?.includes('certificate') ||
                             bodyText?.includes('Certificate');
    
    // Should show either login (for auth) or certificate content
    expect(isLoginPage || isCertificatePage).toBe(true);
    
    console.log(`✓ Certificate reports page fix verified - ${isLoginPage ? 'redirected to login' : 'showing certificate content'}`);
  });

  test('Legacy URL redirects verification', async ({ page }) => {
    const legacyRedirectTests = [
      { from: '/hvac-dashboard/', to: '/trainer/dashboard/', description: 'Dashboard redirect' },
      { from: '/trainer-profile/', to: '/trainer/my-profile/', description: 'Profile redirect' },
      { from: '/certificate-reports/', to: '/trainer/certificate-reports/', description: 'Certificate reports redirect' },
      { from: '/generate-certificates/', to: '/trainer/generate-certificates/', description: 'Generate certificates redirect' },
      { from: '/manage-event/', to: '/trainer/event/manage/', description: 'Manage event redirect' }
    ];
    
    for (const redirectTest of legacyRedirectTests) {
      console.log(`Testing redirect: ${redirectTest.from} → ${redirectTest.to}`);
      
      // Navigate to legacy URL
      await page.goto(redirectTest.from);
      await page.waitForLoadState('networkidle');
      
      // Take screenshot
      const screenshotName = `legacy-redirect-${redirectTest.from.replace(/[^a-z0-9]/g, '-')}`;
      await takeFixVerificationScreenshot(page, screenshotName);
      
      // Check if redirect occurred
      const currentUrl = page.url();
      const redirectOccurred = currentUrl.includes(redirectTest.to);
      
      // Should redirect to the correct new URL
      expect(redirectOccurred).toBe(true);
      
      // Should not show 404 error
      const bodyText = await page.locator('body').textContent();
      expect(bodyText).not.toContain("This page doesn't seem to exist");
      expect(bodyText).not.toContain("404");
      
      console.log(`✓ ${redirectTest.description} working: ${redirectTest.from} → ${currentUrl}`);
    }
  });

  test('All trainer pages accessibility verification', async ({ page }) => {
    const trainerPages = [
      '/trainer/dashboard/',
      '/trainer/my-profile/',
      '/trainer/certificate-reports/',
      '/trainer/generate-certificates/',
      '/trainer/event/manage/',
      '/trainer/event/summary/',
      '/trainer/email-attendees/',
      '/trainer/communication-templates/',
      '/trainer/communication-schedules/',
      '/trainer/attendee-profile/',
      '/trainer/documentation/'
    ];
    
    let accessiblePages = 0;
    let totalPages = trainerPages.length;
    
    for (const pageUrl of trainerPages) {
      try {
        await page.goto(pageUrl, { timeout: 10000 });
        await page.waitForLoadState('networkidle', { timeout: 5000 });
        
        // Take screenshot
        const pageName = pageUrl.split('/').filter(s => s).pop() || 'unknown';
        await takeFixVerificationScreenshot(page, `trainer-page-${pageName}`);
        
        // Check page is accessible (not 404)
        const bodyText = await page.locator('body').textContent();
        const is404 = bodyText?.includes("This page doesn't seem to exist") || 
                     bodyText?.includes("404") ||
                     bodyText?.includes("Page not found");
        
        if (!is404) {
          accessiblePages++;
          console.log(`✓ ${pageUrl} is accessible`);
        } else {
          console.log(`✗ ${pageUrl} shows 404 error`);
        }
        
      } catch (error) {
        console.log(`✗ ${pageUrl} failed to load: ${error}`);
      }
    }
    
    // Calculate success rate
    const successRate = accessiblePages / totalPages;
    console.log(`\n=== TRAINER PAGES ACCESSIBILITY ===`);
    console.log(`Accessible pages: ${accessiblePages}/${totalPages}`);
    console.log(`Success rate: ${Math.round(successRate * 100)}%`);
    
    // Should have at least 90% success rate after fixes
    expect(successRate).toBeGreaterThan(0.9);
  });

  test('Master trainer pages accessibility verification', async ({ page }) => {
    const masterTrainerPages = [
      '/master-trainer/dashboard/',
      '/master-trainer/google-sheets/',
      '/master-trainer/certificate-fix/'
    ];
    
    let accessiblePages = 0;
    let totalPages = masterTrainerPages.length;
    
    for (const pageUrl of masterTrainerPages) {
      try {
        await page.goto(pageUrl, { timeout: 10000 });
        await page.waitForLoadState('networkidle', { timeout: 5000 });
        
        // Take screenshot
        const pageName = pageUrl.split('/').filter(s => s).pop() || 'unknown';
        await takeFixVerificationScreenshot(page, `master-trainer-page-${pageName}`);
        
        // Check page is accessible (not 404)
        const bodyText = await page.locator('body').textContent();
        const is404 = bodyText?.includes("This page doesn't seem to exist") || 
                     bodyText?.includes("404") ||
                     bodyText?.includes("Page not found");
        
        if (!is404) {
          accessiblePages++;
          console.log(`✓ ${pageUrl} is accessible`);
        } else {
          console.log(`✗ ${pageUrl} shows 404 error`);
        }
        
      } catch (error) {
        console.log(`✗ ${pageUrl} failed to load: ${error}`);
      }
    }
    
    // Calculate success rate
    const successRate = accessiblePages / totalPages;
    console.log(`\n=== MASTER TRAINER PAGES ACCESSIBILITY ===`);
    console.log(`Accessible pages: ${accessiblePages}/${totalPages}`);
    console.log(`Success rate: ${Math.round(successRate * 100)}%`);
    
    // Should have 100% success rate after fixes
    expect(successRate).toBe(1.0);
  });

  test('Login page continues to work correctly', async ({ page }) => {
    await page.goto('/training-login/');
    await page.waitForLoadState('networkidle');
    
    // Take screenshot
    await takeFixVerificationScreenshot(page, 'login-page-still-working');
    
    // Verify login form elements are present
    const hasUsernameField = await page.locator('input[name="log"], input[type="text"]').isVisible().catch(() => false);
    const hasPasswordField = await page.locator('input[name="pwd"], input[type="password"]').isVisible().catch(() => false);
    const hasSubmitButton = await page.locator('input[type="submit"], button[type="submit"], .login-submit').isVisible().catch(() => false);
    
    // Login page should still work perfectly
    expect(hasUsernameField || hasPasswordField || hasSubmitButton).toBe(true);
    
    // Should show login title
    const bodyText = await page.locator('body').textContent();
    expect(bodyText).toContain('Trainer Login');
    
    console.log('✓ Login page continues to work correctly after fixes');
  });

  test('WordPress admin bar and structure verification', async ({ page }) => {
    // Test a few key pages to ensure WordPress structure is intact
    const testPages = [
      '/training-login/',
      '/trainer/dashboard/',
      '/master-trainer/dashboard/'
    ];
    
    for (const pageUrl of testPages) {
      await page.goto(pageUrl);
      await page.waitForLoadState('networkidle');
      
      // Check for WordPress structure
      const hasWpClasses = await page.locator('body[class*="wp-"]').isVisible().catch(() => false);
      const hasHeader = await page.locator('header, .site-header, .header').isVisible().catch(() => false);
      const hasFooter = await page.locator('footer, .site-footer, .footer').isVisible().catch(() => false);
      
      // Should maintain WordPress structure
      const hasWordPressStructure = hasWpClasses || hasHeader || hasFooter;
      expect(hasWordPressStructure).toBe(true);
      
      console.log(`✓ ${pageUrl} maintains WordPress structure`);
    }
  });
});