#!/usr/bin/env bun
/**
 * INTRO TEXT JUSTIFICATION TEST
 * ==============================
 * Tests the intro-text paragraph styling including:
 * - Full text justification (text-align: justify)
 * - Last line justification (text-align-last: justify)
 * - Hyphenation support (hyphens: auto)
 * - Cross-browser compatibility
 */

import { chromium } from 'playwright';

const URL = "http://localhost:1999";

async function testIntroTextJustification() {
  console.log('📝 INTRO TEXT JUSTIFICATION TEST\n');
  console.log('='.repeat(70));

  const browser = await chromium.launch({ headless: true });
  const errors = [];
  const testResults = [];

  // ========================================================================
  // TEST 1: Verify intro-text element exists
  // ========================================================================
  console.log("\n1️⃣  Checking intro-text element exists...");
  const page = await browser.newPage({ viewport: { width: 1076, height: 756 } });

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

  await page.goto(URL);
  await page.waitForTimeout(1500);

  const elementExists = await page.evaluate(() => {
    const introText = document.querySelector('.intro-text');
    return {
      exists: introText !== null,
      textLength: introText ? introText.textContent.length : 0
    };
  });

  if (elementExists.exists) {
    console.log(`   ✅ .intro-text element found (${elementExists.textLength} chars)`);
    testResults.push({ test: "intro-text exists", passed: true });
  } else {
    console.log("   ❌ .intro-text element NOT found");
    testResults.push({ test: "intro-text exists", passed: false });
  }

  // ========================================================================
  // TEST 2: Verify text-align: justify
  // ========================================================================
  console.log("\n2️⃣  Checking text-align: justify...");

  const textAlignTest = await page.evaluate(() => {
    const introText = document.querySelector('.intro-text');
    if (!introText) return { passed: false, value: 'element not found' };

    const computed = window.getComputedStyle(introText);
    const textAlign = computed.textAlign;

    return {
      passed: textAlign === 'justify',
      value: textAlign
    };
  });

  if (textAlignTest.passed) {
    console.log(`   ✅ text-align: ${textAlignTest.value}`);
    testResults.push({ test: "text-align justify", passed: true });
  } else {
    console.log(`   ❌ text-align: ${textAlignTest.value} (expected: justify)`);
    testResults.push({ test: "text-align justify", passed: false });
  }

  // ========================================================================
  // TEST 3: Verify text-align-last: justify
  // ========================================================================
  console.log("\n3️⃣  Checking text-align-last: justify...");

  const textAlignLastTest = await page.evaluate(() => {
    const introText = document.querySelector('.intro-text');
    if (!introText) return { passed: false, value: 'element not found' };

    const computed = window.getComputedStyle(introText);
    const textAlignLast = computed.textAlignLast;

    return {
      passed: textAlignLast === 'justify',
      value: textAlignLast
    };
  });

  if (textAlignLastTest.passed) {
    console.log(`   ✅ text-align-last: ${textAlignLastTest.value}`);
    testResults.push({ test: "text-align-last justify", passed: true });
  } else {
    console.log(`   ❌ text-align-last: ${textAlignLastTest.value} (expected: justify)`);
    testResults.push({ test: "text-align-last justify", passed: false });
  }

  // ========================================================================
  // TEST 4: Verify hyphens: auto
  // ========================================================================
  console.log("\n4️⃣  Checking hyphens: auto...");

  const hyphensTest = await page.evaluate(() => {
    const introText = document.querySelector('.intro-text');
    if (!introText) return { passed: false, value: 'element not found' };

    const computed = window.getComputedStyle(introText);
    // Note: Chromium returns 'auto' or 'manual' or 'none'
    const hyphens = computed.hyphens || computed.webkitHyphens;

    return {
      passed: hyphens === 'auto',
      value: hyphens
    };
  });

  if (hyphensTest.passed) {
    console.log(`   ✅ hyphens: ${hyphensTest.value}`);
    testResults.push({ test: "hyphens auto", passed: true });
  } else {
    console.log(`   ❌ hyphens: ${hyphensTest.value} (expected: auto)`);
    testResults.push({ test: "hyphens auto", passed: false });
  }

  // ========================================================================
  // TEST 5: Verify word-spacing is set
  // ========================================================================
  console.log("\n5️⃣  Checking word-spacing...");

  const wordSpacingTest = await page.evaluate(() => {
    const introText = document.querySelector('.intro-text');
    if (!introText) return { passed: false, value: 'element not found' };

    const computed = window.getComputedStyle(introText);
    const wordSpacing = computed.wordSpacing;
    // We set word-spacing: -1px, but computed returns in px
    const value = parseFloat(wordSpacing);

    return {
      passed: value < 0, // Should be negative
      value: wordSpacing
    };
  });

  if (wordSpacingTest.passed) {
    console.log(`   ✅ word-spacing: ${wordSpacingTest.value}`);
    testResults.push({ test: "word-spacing negative", passed: true });
  } else {
    console.log(`   ❌ word-spacing: ${wordSpacingTest.value} (expected: negative value)`);
    testResults.push({ test: "word-spacing negative", passed: false });
  }

  // ========================================================================
  // TEST 6: Verify overflow-wrap: break-word
  // ========================================================================
  console.log("\n6️⃣  Checking overflow-wrap: break-word...");

  const overflowWrapTest = await page.evaluate(() => {
    const introText = document.querySelector('.intro-text');
    if (!introText) return { passed: false, value: 'element not found' };

    const computed = window.getComputedStyle(introText);
    const overflowWrap = computed.overflowWrap || computed.wordWrap;

    return {
      passed: overflowWrap === 'break-word',
      value: overflowWrap
    };
  });

  if (overflowWrapTest.passed) {
    console.log(`   ✅ overflow-wrap: ${overflowWrapTest.value}`);
    testResults.push({ test: "overflow-wrap break-word", passed: true });
  } else {
    console.log(`   ❌ overflow-wrap: ${overflowWrapTest.value} (expected: break-word)`);
    testResults.push({ test: "overflow-wrap break-word", passed: false });
  }

  // ========================================================================
  // TEST 7: Verify font-style: italic
  // ========================================================================
  console.log("\n7️⃣  Checking font-style: italic...");

  const fontStyleTest = await page.evaluate(() => {
    const introText = document.querySelector('.intro-text');
    if (!introText) return { passed: false, value: 'element not found' };

    const computed = window.getComputedStyle(introText);
    const fontStyle = computed.fontStyle;

    return {
      passed: fontStyle === 'italic',
      value: fontStyle
    };
  });

  if (fontStyleTest.passed) {
    console.log(`   ✅ font-style: ${fontStyleTest.value}`);
    testResults.push({ test: "font-style italic", passed: true });
  } else {
    console.log(`   ❌ font-style: ${fontStyleTest.value} (expected: italic)`);
    testResults.push({ test: "font-style italic", passed: false });
  }

  // ========================================================================
  // TEST 8: Test on Spanish language (different hyphenation)
  // ========================================================================
  console.log("\n8️⃣  Testing Spanish version...");

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

  const spanishTest = await page.evaluate(() => {
    const introText = document.querySelector('.intro-text');
    const htmlLang = document.documentElement.lang;

    if (!introText) return { passed: false, lang: htmlLang, hasText: false };

    const computed = window.getComputedStyle(introText);

    return {
      passed: htmlLang === 'es' && computed.textAlign === 'justify',
      lang: htmlLang,
      hasText: introText.textContent.length > 0,
      textAlign: computed.textAlign
    };
  });

  if (spanishTest.passed) {
    console.log(`   ✅ Spanish version: lang="${spanishTest.lang}", text-align: ${spanishTest.textAlign}`);
    testResults.push({ test: "spanish justification", passed: true });
  } else {
    console.log(`   ❌ Spanish version failed - lang: ${spanishTest.lang}, text-align: ${spanishTest.textAlign}`);
    testResults.push({ test: "spanish justification", passed: false });
  }

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

  const passed = testResults.filter(t => t.passed).length;
  const total = testResults.length;
  const consoleErrors = errors.filter(e => !e.includes('favicon'));

  console.log(`Tests: ${passed}/${total} passed`);
  console.log(`Console errors: ${consoleErrors.length}`);

  if (consoleErrors.length > 0) {
    console.log('\nConsole errors:');
    consoleErrors.forEach(e => console.log(`  - ${e}`));
  }

  console.log('\nDetailed results:');
  testResults.forEach(t => {
    console.log(`  ${t.passed ? '✅' : '❌'} ${t.test}`);
  });

  await browser.close();

  const success = passed === total && consoleErrors.length === 0;
  console.log(`\n${success ? '✅ ALL TESTS PASSED' : '❌ SOME TESTS FAILED'}\n`);

  process.exit(success ? 0 : 1);
}

testIntroTextJustification().catch(err => {
  console.error('Test failed:', err);
  process.exit(1);
});