const fs = require('fs');
const path = require('path');
const localesDir = path.join(__dirname, '..', 'src', 'i18n', 'locales');

// Load main locale files
const zhCN = JSON.parse(fs.readFileSync(path.join(localesDir, 'zhCN.json'), 'utf8'));
const enUS = JSON.parse(fs.readFileSync(path.join(localesDir, 'enUS.json'), 'utf8'));
const viVN = JSON.parse(fs.readFileSync(path.join(localesDir, 'viVN.json'), 'utf8'));

// Deep merge function
function deepMerge(target, source) {
  for (const key in source) {
    if (typeof source[key] === 'object' && source[key] !== null && !Array.isArray(source[key])) {
      if (!target[key]) target[key] = {};
      deepMerge(target[key], source[key]);
    } else {
      if (!target[key]) target[key] = source[key];
    }
  }
  return target;
}

// Process pending files
const pendingFiles = fs.readdirSync(localesDir).filter(f => f.startsWith('_pending') && f.endsWith('.json'));

for (const file of pendingFiles) {
  const filePath = path.join(localesDir, file);
  const data = JSON.parse(fs.readFileSync(filePath, 'utf8'));
  
  // Each pending file has zh/en/vi sections
  if (data.zh) deepMerge(zhCN, data.zh);
  if (data.en) deepMerge(enUS, data.en);
  if (data.vi) deepMerge(viVN, data.vi);
  
  console.log('Merged:', file);
}

// Write back
fs.writeFileSync(path.join(localesDir, 'zhCN.json'), JSON.stringify(zhCN, null, 2), 'utf8');
fs.writeFileSync(path.join(localesDir, 'enUS.json'), JSON.stringify(enUS, null, 2), 'utf8');
fs.writeFileSync(path.join(localesDir, 'viVN.json'), JSON.stringify(viVN, null, 2), 'utf8');

// Count keys
function countKeys(obj) { let c=0; for(const k in obj){if(typeof obj[k]==='object'&&obj[k]!==null) c+=countKeys(obj[k]); else c++;} return c; }
console.log('zhCN:', countKeys(zhCN));
console.log('enUS:', countKeys(enUS));
console.log('viVN:', countKeys(viVN));

// Remove pending files
for (const file of pendingFiles) {
  fs.unlinkSync(path.join(localesDir, file));
  console.log('Removed:', file);
}