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

const jsDir = path.join(__dirname, 'dist-prod/assets/js');
const files = fs.readdirSync(jsDir)
  .filter(f => f.endsWith('.js') && !f.endsWith('.gz') && !f.endsWith('.br'))
  .map(f => ({
    name: f,
    size: fs.statSync(path.join(jsDir, f)).size
  }))
  .sort((a, b) => b.size - a.size)
  .slice(0, 25);

console.log('Top 25 largest JS files (uncompressed):');
console.log('========================================');
files.forEach((f, i) => {
  const sizeKB = (f.size / 1024).toFixed(1);
  console.log(`${String(i+1).padStart(2)}. ${f.name.padEnd(40)} ${sizeKB.padStart(8)} KB`);
});

// Total size
const allFiles = fs.readdirSync(jsDir).filter(f => f.endsWith('.js') && !f.endsWith('.gz') && !f.endsWith('.br'));
const totalSize = allFiles.reduce((sum, f) => sum + fs.statSync(path.join(jsDir, f)).size, 0);
console.log('\n========================================');
console.log(`Total JS size: ${(totalSize/1024/1024).toFixed(2)} MB (${allFiles.length} files)`);

// Check for login/entry chunks
console.log('\nKey entry chunks:');
const keyFiles = allFiles.filter(f => 
  f.startsWith('Login-') || f.startsWith('vendor-') || f.startsWith('element-plus-') || 
  f.startsWith('Layout-') || f.includes('form-create') || f === 'index.js' ||
  f.startsWith('echarts-') || f.startsWith('bpmn-')
);
keyFiles.forEach(f => {
  const size = fs.statSync(path.join(jsDir, f)).size;
  console.log(`  ${f}: ${(size/1024).toFixed(1)} KB`);
});