#!/usr/bin/env bun
/**
 * REFERENCES SECTION - DIRECT PDF SHORTCUT LINK TEST
 * ====================================================
 * Tests the direct PDF download shortcut links in the References section
 *
 * Coverage:
 * - References section renders with "Download this curriculum" links
 * - Links point directly to shortcut URLs (no modal)
 * - English CV: /cv-jamr-{year}-en.pdf
 * - Spanish CV: /cv-jamr-{year}-es.pdf
 * - Year is dynamic (current year)
 * - Links have target="_blank" and proper security attributes
 * - No onclick handlers (direct navigation)
 * - Works in non-browser environments (PDF exports, emails, etc.)
 *
 * Integration:
 * - Data: cv-en.json and cv-es.json with action: "downloadPDF"
 * - Template: references.html with shortcut URL logic
 * - Backend: DefaultCVShortcut handler for year validation
 */

import { chromium } from 'playwright';

const URL = "http://localhost:1999";
const CURRENT_YEAR = new Date().getFullYear();

async function testReferencesPDFShortcutLinks() {
  console.log('📚 REFERENCES SECTION - DIRECT PDF SHORTCUT LINK TEST\n');
  console.log('='.repeat(70));

  const browser = await chromium.launch({ headless: false });
  const context = await browser.newContext({ viewport: { width: 1920, height: 1080 } });
  const page = await context.newPage();

  const errors = [];
  const testResults = [];

  page.on('console', msg => {
    if (msg.type() === 'error') {
      errors.push(msg.text());
      console.log(`❌ CONSOLE ERROR: ${msg.text()}`);
    }
  });

  // ========================================================================
  // TEST 1: English Version - Direct Shortcut URL
  // ========================================================================
  console.log("\n1️⃣  Testing English Direct Shortcut URL...");

  await page.goto(`${URL}/?lang=en`);
  await page.waitForTimeout(1500);

  // Scroll to references section
  await page.evaluate(() => {
    const referencesSection = document.querySelector('#references');
    if (referencesSection) {
      referencesSection.scrollIntoView({ behavior: 'smooth', block: 'center' });
    }
  });
  await page.waitForTimeout(1000);

  const enReferences = await page.evaluate((currentYear) => {
    const section = document.querySelector('#references');
    if (!section) return { found: false };

    // Find the reference-item div that contains "Download this curriculum"
    const referenceItems = section.querySelectorAll('.reference-item');
    let downloadLink = null;

    for (const item of referenceItems) {
      if (item.textContent.includes('Download this curriculum')) {
        downloadLink = item.querySelector('a');
        break;
      }
    }

    return {
      found: true,
      sectionExists: !!section,
      downloadLinkExists: !!downloadLink,
      downloadLinkText: downloadLink ? downloadLink.textContent.trim() : null,
      href: downloadLink ? downloadLink.getAttribute('href') : null,
      target: downloadLink ? downloadLink.getAttribute('target') : null,
      rel: downloadLink ? downloadLink.getAttribute('rel') : null,
      hasOnClick: downloadLink ? downloadLink.hasAttribute('onclick') : false,
      expectedHref: `/cv-jamr-${currentYear}-en.pdf`,
      hrefMatches: downloadLink ? downloadLink.getAttribute('href') === `/cv-jamr-${currentYear}-en.pdf` : false
    };
  }, CURRENT_YEAR);

  console.log(`   References section: ${enReferences.sectionExists ? '✅' : '❌'}`);
  console.log(`   Download link exists: ${enReferences.downloadLinkExists ? '✅' : '❌'}`);
  console.log(`   Link text: "${enReferences.downloadLinkText}"`);
  console.log(`   Href: "${enReferences.href}"`);
  console.log(`   Expected: "${enReferences.expectedHref}"`);
  console.log(`   Href matches: ${enReferences.hrefMatches ? '✅' : '❌'}`);
  console.log(`   Target="_blank": ${enReferences.target === '_blank' ? '✅' : '❌'}`);
  console.log(`   Rel security attrs: ${enReferences.rel === 'noopener noreferrer' ? '✅' : '❌'}`);
  console.log(`   No onclick handler: ${!enReferences.hasOnClick ? '✅' : '❌'}`);

  const test1Passed = enReferences.sectionExists &&
                      enReferences.downloadLinkExists &&
                      enReferences.hrefMatches &&
                      enReferences.target === '_blank' &&
                      enReferences.rel === 'noopener noreferrer' &&
                      !enReferences.hasOnClick;

  console.log(`   ${test1Passed ? '✅ PASS' : '❌ FAIL'} - English direct shortcut URL`);
  testResults.push({ test: 'EN Direct Shortcut URL', passed: test1Passed });

  // ========================================================================
  // TEST 2: Spanish Version - Direct Shortcut URL
  // ========================================================================
  console.log("\n2️⃣  Testing Spanish Direct Shortcut URL...");

  await page.goto(`${URL}/?lang=es`);
  await page.waitForTimeout(1500);

  // Scroll to references section
  await page.evaluate(() => {
    const referencesSection = document.querySelector('#references');
    if (referencesSection) {
      referencesSection.scrollIntoView({ behavior: 'smooth', block: 'center' });
    }
  });
  await page.waitForTimeout(1000);

  const esReferences = await page.evaluate((currentYear) => {
    const section = document.querySelector('#references');
    if (!section) return { found: false };

    // Find the reference-item div that contains "Descargar este currículum"
    const referenceItems = section.querySelectorAll('.reference-item');
    let downloadLink = null;

    for (const item of referenceItems) {
      if (item.textContent.includes('Descargar este currículum')) {
        downloadLink = item.querySelector('a');
        break;
      }
    }

    return {
      found: true,
      sectionExists: !!section,
      downloadLinkExists: !!downloadLink,
      downloadLinkText: downloadLink ? downloadLink.textContent.trim() : null,
      href: downloadLink ? downloadLink.getAttribute('href') : null,
      target: downloadLink ? downloadLink.getAttribute('target') : null,
      rel: downloadLink ? downloadLink.getAttribute('rel') : null,
      hasOnClick: downloadLink ? downloadLink.hasAttribute('onclick') : false,
      expectedHref: `/cv-jamr-${currentYear}-es.pdf`,
      hrefMatches: downloadLink ? downloadLink.getAttribute('href') === `/cv-jamr-${currentYear}-es.pdf` : false
    };
  }, CURRENT_YEAR);

  console.log(`   References section: ${esReferences.sectionExists ? '✅' : '❌'}`);
  console.log(`   Download link exists: ${esReferences.downloadLinkExists ? '✅' : '❌'}`);
  console.log(`   Link text: "${esReferences.downloadLinkText}"`);
  console.log(`   Href: "${esReferences.href}"`);
  console.log(`   Expected: "${esReferences.expectedHref}"`);
  console.log(`   Href matches: ${esReferences.hrefMatches ? '✅' : '❌'}`);
  console.log(`   Target="_blank": ${esReferences.target === '_blank' ? '✅' : '❌'}`);
  console.log(`   Rel security attrs: ${esReferences.rel === 'noopener noreferrer' ? '✅' : '❌'}`);
  console.log(`   No onclick handler: ${!esReferences.hasOnClick ? '✅' : '❌'}`);

  const test2Passed = esReferences.sectionExists &&
                      esReferences.downloadLinkExists &&
                      esReferences.hrefMatches &&
                      esReferences.target === '_blank' &&
                      esReferences.rel === 'noopener noreferrer' &&
                      !esReferences.hasOnClick;

  console.log(`   ${test2Passed ? '✅ PASS' : '❌ FAIL'} - Spanish direct shortcut URL`);
  testResults.push({ test: 'ES Direct Shortcut URL', passed: test2Passed });

  // ========================================================================
  // TEST 3: Shortcut URL Returns PDF with Correct Filename
  // ========================================================================
  console.log("\n3️⃣  Testing Shortcut URL Direct PDF Download...");

  // Test English shortcut
  const enResponse = await page.request.get(`${URL}/cv-jamr-${CURRENT_YEAR}-en.pdf`, {
    maxRedirects: 0,
    failOnStatusCode: false
  });

  const enStatus = enResponse.status();
  const enContentDisposition = enResponse.headers()['content-disposition'];
  const enContentType = enResponse.headers()['content-type'];
  const enFilename = enContentDisposition?.match(/filename=([^;]+)/)?.[1];

  console.log(`   English shortcut HTTP status: ${enStatus} ${enStatus === 200 ? '✅' : '❌'}`);
  console.log(`   Content-Type: ${enContentType} ${enContentType === 'application/pdf' ? '✅' : '❌'}`);
  console.log(`   Content-Disposition: ${enContentDisposition}`);
  console.log(`   Filename: ${enFilename} ${enFilename === 'cv-jamr-2025-en.pdf' ? '✅' : '❌'}`);

  // Test Spanish shortcut
  const esResponse = await page.request.get(`${URL}/cv-jamr-${CURRENT_YEAR}-es.pdf`, {
    maxRedirects: 0,
    failOnStatusCode: false
  });

  const esStatus = esResponse.status();
  const esContentDisposition = esResponse.headers()['content-disposition'];
  const esContentType = esResponse.headers()['content-type'];
  const esFilename = esContentDisposition?.match(/filename=([^;]+)/)?.[1];

  console.log(`   Spanish shortcut HTTP status: ${esStatus} ${esStatus === 200 ? '✅' : '❌'}`);
  console.log(`   Content-Type: ${esContentType} ${esContentType === 'application/pdf' ? '✅' : '❌'}`);
  console.log(`   Content-Disposition: ${esContentDisposition}`);
  console.log(`   Filename: ${esFilename} ${esFilename === 'cv-jamr-2025-es.pdf' ? '✅' : '❌'}`);

  const test3Passed = enStatus === 200 &&
                      esStatus === 200 &&
                      enContentType === 'application/pdf' &&
                      esContentType === 'application/pdf' &&
                      enFilename === 'cv-jamr-2025-en.pdf' &&
                      esFilename === 'cv-jamr-2025-es.pdf';

  console.log(`   ${test3Passed ? '✅ PASS' : '❌ FAIL'} - Shortcut URL direct download with correct filename`);
  testResults.push({ test: 'Shortcut URL Direct Download', passed: test3Passed });

  // ========================================================================
  // TEST 4: Invalid Year Returns 404
  // ========================================================================
  console.log("\n4️⃣  Testing Invalid Year Validation...");

  const invalidYear = CURRENT_YEAR - 1; // Last year
  const futureYear = CURRENT_YEAR + 1; // Next year

  const pastResponse = await page.request.get(`${URL}/cv-jamr-${invalidYear}-en.pdf`, {
    failOnStatusCode: false
  });

  const futureResponse = await page.request.get(`${URL}/cv-jamr-${futureYear}-en.pdf`, {
    failOnStatusCode: false
  });

  const pastStatus = pastResponse.status();
  const futureStatus = futureResponse.status();

  console.log(`   Past year (${invalidYear}) status: ${pastStatus} ${pastStatus === 404 ? '✅' : '❌'}`);
  console.log(`   Future year (${futureYear}) status: ${futureStatus} ${futureStatus === 404 ? '✅' : '❌'}`);

  const test4Passed = pastStatus === 404 && futureStatus === 404;

  console.log(`   ${test4Passed ? '✅ PASS' : '❌ FAIL'} - Year validation (404 for invalid years)`);
  testResults.push({ test: 'Year Validation', passed: test4Passed });

  // ========================================================================
  // TEST 5: Link Works in PDF Export Context (No JavaScript)
  // ========================================================================
  console.log("\n5️⃣  Testing Link Works Without JavaScript...");

  // Navigate with JavaScript disabled
  const noJSContext = await browser.newContext({
    javaScriptEnabled: false,
    viewport: { width: 1920, height: 1080 }
  });
  const noJSPage = await noJSContext.newPage();

  await noJSPage.goto(`${URL}/?lang=en`);
  await noJSPage.waitForTimeout(1500);

  const linkWorksWithoutJS = await noJSPage.evaluate((currentYear) => {
    const section = document.querySelector('#references');
    if (!section) return { found: false };

    const referenceItems = section.querySelectorAll('.reference-item');
    let downloadLink = null;

    for (const item of referenceItems) {
      if (item.textContent.includes('Download this curriculum')) {
        downloadLink = item.querySelector('a');
        break;
      }
    }

    return {
      found: true,
      linkExists: !!downloadLink,
      href: downloadLink ? downloadLink.getAttribute('href') : null,
      isDirectLink: downloadLink ? downloadLink.getAttribute('href') === `/cv-jamr-${currentYear}-en.pdf` : false,
      noOnClick: downloadLink ? !downloadLink.hasAttribute('onclick') : false
    };
  }, CURRENT_YEAR);

  console.log(`   Link exists without JS: ${linkWorksWithoutJS.linkExists ? '✅' : '❌'}`);
  console.log(`   Href is direct PDF link: ${linkWorksWithoutJS.isDirectLink ? '✅' : '❌'}`);
  console.log(`   No onclick dependency: ${linkWorksWithoutJS.noOnClick ? '✅' : '❌'}`);

  const test5Passed = linkWorksWithoutJS.linkExists &&
                      linkWorksWithoutJS.isDirectLink &&
                      linkWorksWithoutJS.noOnClick;

  console.log(`   ${test5Passed ? '✅ PASS' : '❌ FAIL'} - Works without JavaScript`);
  testResults.push({ test: 'No JavaScript Required', passed: test5Passed });

  await noJSContext.close();

  // ========================================================================
  // TEST 6: "See this CV in..." Language Switching Links
  // ========================================================================
  console.log("\n6️⃣  Testing Language Switching Links...");

  // Test English page has Spanish link
  await page.goto(`${URL}/?lang=en`);
  await page.waitForTimeout(1000);

  const enLanguageLink = await page.evaluate(() => {
    const section = document.querySelector('#references');
    if (!section) return { found: false };

    const referenceItems = section.querySelectorAll('.reference-item');
    let spanishLink = null;

    for (const item of referenceItems) {
      if (item.textContent.includes('Curriculum Vitae in PDF in')) {
        spanishLink = item.querySelector('a');
        break;
      }
    }

    return {
      found: true,
      linkExists: !!spanishLink,
      linkText: spanishLink ? spanishLink.textContent.trim() : null,
      href: spanishLink ? spanishLink.getAttribute('href') : null,
      expectedHref: '/?lang=es',
      hrefMatches: spanishLink ? spanishLink.getAttribute('href') === '/?lang=es' : false,
      target: spanishLink ? spanishLink.getAttribute('target') : null,
      noCorruption: spanishLink ? !spanishLink.getAttribute('href').includes('EXTRA') : false
    };
  });

  console.log(`   English page - Spanish link exists: ${enLanguageLink.linkExists ? '✅' : '❌'}`);
  console.log(`   Link text: "${enLanguageLink.linkText}"`);
  console.log(`   Href: "${enLanguageLink.href}"`);
  console.log(`   Expected: "${enLanguageLink.expectedHref}"`);
  console.log(`   Href matches: ${enLanguageLink.hrefMatches ? '✅' : '❌'}`);
  console.log(`   No URL corruption: ${enLanguageLink.noCorruption ? '✅' : '❌'}`);
  console.log(`   Target="_blank": ${enLanguageLink.target === '_blank' ? '✅' : '❌'}`);

  // Test Spanish page has English link
  await page.goto(`${URL}/?lang=es`);
  await page.waitForTimeout(1000);

  const esLanguageLink = await page.evaluate(() => {
    const section = document.querySelector('#references');
    if (!section) return { found: false };

    const referenceItems = section.querySelectorAll('.reference-item');
    let englishLink = null;

    for (const item of referenceItems) {
      if (item.textContent.includes('Currículum Vitae en PDF en')) {
        englishLink = item.querySelector('a');
        break;
      }
    }

    return {
      found: true,
      linkExists: !!englishLink,
      linkText: englishLink ? englishLink.textContent.trim() : null,
      href: englishLink ? englishLink.getAttribute('href') : null,
      expectedHref: '/?lang=en',
      hrefMatches: englishLink ? englishLink.getAttribute('href') === '/?lang=en' : false,
      target: englishLink ? englishLink.getAttribute('target') : null,
      noCorruption: englishLink ? !englishLink.getAttribute('href').includes('EXTRA') : false
    };
  });

  console.log(`   Spanish page - English link exists: ${esLanguageLink.linkExists ? '✅' : '❌'}`);
  console.log(`   Link text: "${esLanguageLink.linkText}"`);
  console.log(`   Href: "${esLanguageLink.href}"`);
  console.log(`   Expected: "${esLanguageLink.expectedHref}"`);
  console.log(`   Href matches: ${esLanguageLink.hrefMatches ? '✅' : '❌'}`);
  console.log(`   No URL corruption: ${esLanguageLink.noCorruption ? '✅' : '❌'}`);
  console.log(`   Target="_blank": ${esLanguageLink.target === '_blank' ? '✅' : '❌'}`);

  const test6Passed = enLanguageLink.linkExists &&
                      enLanguageLink.hrefMatches &&
                      enLanguageLink.noCorruption &&
                      esLanguageLink.linkExists &&
                      esLanguageLink.hrefMatches &&
                      esLanguageLink.noCorruption;

  console.log(`   ${test6Passed ? '✅ PASS' : '❌ FAIL'} - Language switching links work correctly`);
  testResults.push({ test: 'Language Switching Links', passed: test6Passed });

  // ========================================================================
  // FINAL RESULTS
  // ========================================================================
  console.log('\n' + '='.repeat(70));
  console.log('📊 TEST SUMMARY\n');

  const totalTests = testResults.length;
  const passedTests = testResults.filter(r => r.passed).length;
  const failedTests = totalTests - passedTests;

  testResults.forEach((result, index) => {
    const status = result.passed ? '✅ PASS' : '❌ FAIL';
    console.log(`${index + 1}. ${status} - ${result.test}`);
  });

  console.log('\n' + '='.repeat(70));
  console.log(`Total Tests: ${totalTests}`);
  console.log(`✅ Passed: ${passedTests}`);
  console.log(`❌ Failed: ${failedTests}`);

  if (errors.length > 0) {
    console.log(`\n⚠️  Console Errors Detected: ${errors.length}`);
    errors.forEach(err => console.log(`   - ${err}`));
  }

  const allPassed = passedTests === totalTests && errors.length === 0;
  console.log('\n' + '='.repeat(70));
  console.log(allPassed ? '🎉 ALL TESTS PASSED!' : '💥 SOME TESTS FAILED');
  console.log('='.repeat(70));

  await browser.close();

  // Exit with appropriate code
  process.exit(allPassed ? 0 : 1);
}

testReferencesPDFShortcutLinks().catch(err => {
  console.error('❌ FATAL ERROR:', err);
  process.exit(1);
});