#!/usr/bin/env bun
/**
 * MOBILE RESPONSIVE TEST
 * =======================
 * Tests mobile viewport rendering and interactions
 * - Mobile viewport sizing (375px, 768px, 1024px)
 * - Touch interactions
 * - Mobile menu functionality
 * - Responsive layout breakpoints
 * - Text readability at small sizes
 */

import { chromium } from 'playwright';

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

// Common mobile viewports
const VIEWPORTS = {
  mobile: { width: 375, height: 667 },    // iPhone SE
  tablet: { width: 768, height: 1024 },   // iPad
  desktop: { width: 1920, height: 1080 }  // Desktop baseline
};

async function testMobileResponsive() {
  console.log('📱 MOBILE RESPONSIVE TEST\n');
  console.log('='.repeat(70));

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

  // ========================================================================
  // TEST 1: Mobile viewport (375px)
  // ========================================================================
  console.log("\n1️⃣  Testing Mobile Viewport (375px)...");
  const mobilePage = await browser.newPage({ viewport: VIEWPORTS.mobile });

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

  await mobilePage.goto(URL);
  await mobilePage.waitForTimeout(2000);

  const mobileTest = await mobilePage.evaluate(() => {
    const paper = document.querySelector('.cv-paper');
    const body = document.body;
    const hamburger = document.querySelector('.hamburger-btn');

    // Check for horizontal overflow
    const hasHorizontalScroll = document.documentElement.scrollWidth > window.innerWidth;

    // Check if text is readable (not too small)
    const paragraphs = Array.from(document.querySelectorAll('p, li'));
    const fontSizes = paragraphs.map(p => {
      const size = parseFloat(window.getComputedStyle(p).fontSize);
      return size;
    });
    const minFontSize = Math.min(...fontSizes);

    // Check if hamburger menu exists (mobile navigation)
    const hasHamburger = !!hamburger;
    const hamburgerVisible = hasHamburger ?
      window.getComputedStyle(hamburger).display !== 'none' : false;

    return {
      width: window.innerWidth,
      height: window.innerHeight,
      hasHorizontalScroll,
      minFontSize,
      hasHamburger,
      hamburgerVisible,
      paperWidth: paper ? paper.offsetWidth : 0
    };
  });

  console.log(`   Viewport: ${mobileTest.width}x${mobileTest.height}`);
  console.log(`   Horizontal scroll: ${mobileTest.hasHorizontalScroll ? '❌ YES (BAD)' : '✅ NO (GOOD)'}`);
  console.log(`   Min font size: ${mobileTest.minFontSize.toFixed(1)}px ${mobileTest.minFontSize >= 14 ? '✅' : '⚠️'}`);
  console.log(`   Hamburger menu: ${mobileTest.hasHamburger ? '✅ Present' : '⚠️ Not found'}`);
  console.log(`   Hamburger visible: ${mobileTest.hamburgerVisible ? '✅ YES' : '⚠️ NO'}`);

  const mobileViewportPassed = !mobileTest.hasHorizontalScroll && mobileTest.minFontSize >= 14;
  console.log(`   ${mobileViewportPassed ? '✅ PASS' : '❌ FAIL'} - Mobile viewport`);
  testResults.push({ test: 'Mobile Viewport (375px)', passed: mobileViewportPassed });

  // ========================================================================
  // TEST 2: Hamburger Menu Click Toggle (Mobile)
  // ========================================================================
  console.log("\n2️⃣  Testing Hamburger Menu Click Toggle...");

  const hamburger = await mobilePage.$('.hamburger-btn');
  if (hamburger) {
    // Click hamburger to open menu (simulates mobile tap)
    await hamburger.click();
    await mobilePage.waitForTimeout(300);

    const menuOpenTest = await mobilePage.evaluate(() => {
      const menu = document.querySelector('.navigation-menu');
      if (!menu) return { found: false };

      const hasMenuOpen = menu.classList.contains('menu-open');
      const computedStyle = window.getComputedStyle(menu);
      const isVisible = computedStyle.opacity === '1' && computedStyle.maxHeight !== '0px';

      return {
        found: true,
        hasMenuOpen,
        isVisible,
        maxHeight: computedStyle.maxHeight
      };
    });

    console.log(`   Menu found: ${menuOpenTest.found ? '✅' : '❌'}`);
    console.log(`   Has menu-open class: ${menuOpenTest.hasMenuOpen ? '✅' : '❌'}`);
    console.log(`   Menu visible: ${menuOpenTest.isVisible ? '✅' : '❌'}`);

    const openPassed = menuOpenTest.found && menuOpenTest.hasMenuOpen;
    console.log(`   ${openPassed ? '✅ PASS' : '❌ FAIL'} - Menu opens on click`);
    testResults.push({ test: 'Menu Opens on Click', passed: openPassed });

    // TEST 2B: Click again to close
    await hamburger.click();
    await mobilePage.waitForTimeout(300);

    const menuCloseTest = await mobilePage.evaluate(() => {
      const menu = document.querySelector('.navigation-menu');
      return {
        hasMenuOpen: menu?.classList.contains('menu-open') ?? false
      };
    });

    const closePassed = !menuCloseTest.hasMenuOpen;
    console.log(`   Menu closes on second click: ${closePassed ? '✅' : '❌'}`);
    testResults.push({ test: 'Menu Closes on Click', passed: closePassed });

    // TEST 2C: Click outside to close
    await hamburger.click(); // Open again
    await mobilePage.waitForTimeout(300);
    await mobilePage.click('body', { position: { x: 300, y: 400 } }); // Click outside
    await mobilePage.waitForTimeout(300);

    const outsideCloseTest = await mobilePage.evaluate(() => {
      const menu = document.querySelector('.navigation-menu');
      return {
        hasMenuOpen: menu?.classList.contains('menu-open') ?? false
      };
    });

    const outsidePassed = !outsideCloseTest.hasMenuOpen;
    console.log(`   Menu closes on outside click: ${outsidePassed ? '✅' : '❌'}`);
    testResults.push({ test: 'Menu Closes on Outside Click', passed: outsidePassed });

  } else {
    console.log(`   ⚠️  SKIP - Hamburger menu not found`);
    testResults.push({ test: 'Menu Opens on Click', passed: false });
    testResults.push({ test: 'Menu Closes on Click', passed: false });
    testResults.push({ test: 'Menu Closes on Outside Click', passed: false });
  }

  // ========================================================================
  // TEST 3: Tablet viewport (768px)
  // ========================================================================
  console.log("\n3️⃣  Testing Tablet Viewport (768px)...");
  const tabletPage = await browser.newPage({ viewport: VIEWPORTS.tablet });
  await tabletPage.goto(URL);
  await tabletPage.waitForTimeout(2000);

  const tabletTest = await tabletPage.evaluate(() => {
    const hasHorizontalScroll = document.documentElement.scrollWidth > window.innerWidth;
    const paper = document.querySelector('.cv-paper');
    const actionBar = document.querySelector('.action-bar, .cv-controls');

    return {
      width: window.innerWidth,
      hasHorizontalScroll,
      paperWidth: paper ? paper.offsetWidth : 0,
      hasActionBar: !!actionBar,
      actionBarVisible: actionBar ? window.getComputedStyle(actionBar).display !== 'none' : false
    };
  });

  console.log(`   Viewport: ${tabletTest.width}px`);
  console.log(`   Horizontal scroll: ${tabletTest.hasHorizontalScroll ? '❌ YES' : '✅ NO'}`);
  console.log(`   Action bar: ${tabletTest.hasActionBar ? '✅ Present' : '⚠️ Not found'}`);

  const tabletViewportPassed = !tabletTest.hasHorizontalScroll;
  console.log(`   ${tabletViewportPassed ? '✅ PASS' : '❌ FAIL'} - Tablet viewport`);
  testResults.push({ test: 'Tablet Viewport (768px)', passed: tabletViewportPassed });

  await tabletPage.close();

  // ========================================================================
  // TEST 4: Responsive breakpoints
  // ========================================================================
  console.log("\n4️⃣  Testing Responsive Breakpoints...");

  const breakpoints = [
    { name: 'Small Mobile', width: 320 },
    { name: 'Mobile', width: 375 },
    { name: 'Large Mobile', width: 414 },
    { name: 'Small Tablet', width: 600 },
    { name: 'Tablet', width: 768 },
    { name: 'Large Tablet', width: 1024 },
    { name: 'Desktop', width: 1920 }
  ];

  const breakpointResults = [];

  for (const bp of breakpoints) {
    await mobilePage.setViewportSize({ width: bp.width, height: 800 });
    await mobilePage.waitForTimeout(200);

    const result = await mobilePage.evaluate(() => {
      return {
        hasHorizontalScroll: document.documentElement.scrollWidth > window.innerWidth,
        bodyWidth: document.body.offsetWidth
      };
    });

    const passed = !result.hasHorizontalScroll;
    breakpointResults.push({ name: bp.name, width: bp.width, passed });
    console.log(`   ${bp.name} (${bp.width}px): ${passed ? '✅' : '❌'}`);
  }

  const allBreakpointsPassed = breakpointResults.every(r => r.passed);
  console.log(`   ${allBreakpointsPassed ? '✅ PASS' : '❌ FAIL'} - All breakpoints`);
  testResults.push({ test: 'Responsive Breakpoints', passed: allBreakpointsPassed });

  // ========================================================================
  // TEST 5: Mobile-specific features
  // ========================================================================
  console.log("\n5️⃣  Testing Mobile-Specific Features...");

  await mobilePage.setViewportSize(VIEWPORTS.mobile);
  await mobilePage.waitForTimeout(500);

  const mobileFeatures = await mobilePage.evaluate(() => {
    // Check viewport meta tag
    const viewportMeta = document.querySelector('meta[name="viewport"]');
    const hasViewportMeta = !!viewportMeta;
    const viewportContent = viewportMeta?.getAttribute('content') || '';

    // Check for touch-friendly button sizes (minimum 44x44px)
    const buttons = Array.from(document.querySelectorAll('button, a[role="button"], .btn, input[type="checkbox"]'));
    const buttonSizes = buttons.map(btn => {
      const rect = btn.getBoundingClientRect();
      return { width: rect.width, height: rect.height };
    });
    const tooSmallButtons = buttonSizes.filter(s => s.width < 44 || s.height < 44).length;

    // Check for text overflow
    const hasTextOverflow = Array.from(document.querySelectorAll('*')).some(el => {
      return el.scrollWidth > el.clientWidth && window.getComputedStyle(el).overflow === 'visible';
    });

    return {
      hasViewportMeta,
      viewportContent,
      totalButtons: buttons.length,
      tooSmallButtons,
      hasTextOverflow
    };
  });

  console.log(`   Viewport meta tag: ${mobileFeatures.hasViewportMeta ? '✅' : '❌'}`);
  console.log(`   Content: "${mobileFeatures.viewportContent}"`);
  console.log(`   Touch-friendly buttons: ${mobileFeatures.totalButtons - mobileFeatures.tooSmallButtons}/${mobileFeatures.totalButtons}`);
  console.log(`   Too small (<44px): ${mobileFeatures.tooSmallButtons} ${mobileFeatures.tooSmallButtons === 0 ? '✅' : '⚠️'}`);
  console.log(`   Text overflow: ${mobileFeatures.hasTextOverflow ? '⚠️ YES' : '✅ NO'}`);

  const mobileFeaturesPass = mobileFeatures.hasViewportMeta && !mobileFeatures.hasTextOverflow;
  console.log(`   ${mobileFeaturesPass ? '✅ PASS' : '❌ FAIL'} - Mobile features`);
  testResults.push({ test: 'Mobile Features', passed: mobileFeaturesPass });

  await mobilePage.close();

  // ========================================================================
  // FINAL SUMMARY
  // ========================================================================
  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 => {
    console.log(`   ${result.passed ? '✅' : '❌'} ${result.test}`);
  });

  console.log(`\n   Total: ${passedTests}/${totalTests} tests passed`);

  if (errors.length === 0) {
    console.log("\n✅ NO CONSOLE ERRORS");
  } else {
    console.log(`\n⚠️  ${errors.length} CONSOLE ERRORS`);
  }

  console.log("=".repeat(70) + "\n");

  if (failedTests === 0) {
    console.log("🎉 MOBILE RESPONSIVE VALIDATED!");
  } else {
    console.log("⚠️  SOME TESTS FAILED - See details above");
  }

  await browser.close();
  process.exit(failedTests === 0 ? 0 : 1);
}

await testMobileResponsive();