const XLSX = require('xlsx');
const mysql = require('mysql2/promise');
require('dotenv').config();

async function deepAudit() {
  const workbook = XLSX.readFile('asset_pc (2026.06.15).xlsx');
  const sheet = workbook.Sheets[workbook.SheetNames[0]];
  const excelData = XLSX.utils.sheet_to_json(sheet);

  console.log('📊 [Excel Audit] Total Rows:', excelData.length);

  // 1. 엑셀 내 asset_type 종류 확인
  const excelTypes = new Set();
  excelData.forEach(r => excelTypes.add(r.asset_type));
  console.log('Excel Asset Types:', Array.from(excelTypes));

  // 2. '공용' 키워드가 들어간 모든 행 추출
  const publicKeywords = ['공용', '공통', '테스트', 'TEST'];
  const potentialPublicInExcel = excelData.filter(r => {
    const name = String(r.user_current || '');
    const type = String(r.asset_type || '');
    const memo = String(r.memo || '');
    return publicKeywords.some(k => name.includes(k) || type.includes(k) || memo.includes(k)) || !r.emp_no;
  });

  console.log(`\n🔍 [Potential Public/Issue Rows in Excel]: ${potentialPublicInExcel.length}건`);
  console.table(potentialPublicInExcel.slice(0, 30).map(r => ({
    emp_no: r.emp_no,
    user: r.user_current,
    dept: r.current_dept,
    type: r.asset_type,
    memo: r.memo
  })));

  // 3. DB와 대조 (특히 엑셀엔 사번이 있는데 DB엔 공용으로 된 게 있는지)
  const connection = await mysql.createConnection({
    host: process.env.DB_HOST,
    user: process.env.DB_USER,
    password: process.env.DB_PASS,
    database: process.env.DB_NAME,
    port: parseInt(process.env.DB_PORT || '3306')
  });

  const [dbRows] = await connection.query('SELECT id, user_current, emp_no, asset_type FROM asset_core WHERE id LIKE "PC_20260615_%"');
  
  // 엑셀은 개인PC인데 DB는 공용인 경우 (또는 그 반대)
  const issues = [];
  for (let i = 0; i < excelData.length; i++) {
    const ex = excelData[i];
    const id = `PC_20260615_${String(i + 1).padStart(4, '0')}`;
    const db = dbRows.find(r => r.id === id);
    
    if (!db) continue;

    const isExcelPublic = !ex.emp_no || String(ex.user_current).includes('공용');
    const isDbPublic = !db.emp_no || String(db.user_current).includes('공용');

    if (isExcelPublic !== isDbPublic) {
      issues.push({ id, excel_user: ex.user_current, db_user: db.user_current, excel_emp: ex.emp_no, db_emp: db.emp_no });
    }
  }

  console.log(`\n⚠️ [Consistency Issues]: ${issues.length}건`);
  if (issues.length > 0) console.table(issues);

  await connection.end();
}

deepAudit().catch(console.error);