const fs = require('fs');
const path = require('path');

const buildDir = path.join(__dirname, 'dist');

// Basic HTML entity decode
function decodeHtmlEntities(str) {
  return str
    .replace(/&#(\d+);/g, (_, dec) => String.fromCharCode(dec))
    .replace(/"/g, '"')
    .replace(/'/g, "'")
    .replace(/&/g, '&')
    .replace(/&lt;/g, '<')
    .replace(/&gt;/g, '>');
}

// Decode both URI and HTML entities inside <?php ... ?>
function decodePhpBlocks(content) {
  return content.replace(/<\?php([\s\S]*?)\?>/g, (match, code) => {
    try {
      let decoded = decodeURIComponent(code);         // %XX to characters
      decoded = decodeHtmlEntities(decoded);          // &#39; to '
      return `<?php${decoded}?>`;
    } catch (e) {
      console.warn('⚠️ Decode failed for block:', code.trim().slice(0, 50), '...');
      return match;
    }
  });
}

function fixPhpTagsInFile(filePath) {
  let content = fs.readFileSync(filePath, 'utf-8');

  // Step 1: Replace escaped tags
  content = content
    .replace(/&lt;\?php/g, '<?php')
    .replace(/\?&gt;/g, '?>');

  // Step 2: Decode content inside <?php ... ?>
  content = decodePhpBlocks(content);

  fs.writeFileSync(filePath, content, 'utf-8');
  console.log(`✅ Processed: ${filePath}`);
}

function walkDir(dir) {
  const entries = fs.readdirSync(dir, { withFileTypes: true });
  for (const entry of entries) {
    const fullPath = path.join(dir, entry.name);
    if (entry.isDirectory()) {
      walkDir(fullPath);
    } else if (fullPath.endsWith('.html') || fullPath.endsWith('.php')) {
      fixPhpTagsInFile(fullPath);
    }
  }
}

walkDir(buildDir);
console.log('🎉 All PHP tag fixes, URL decodes, and HTML entity decodes complete.');