import mysql from 'mysql2/promise';
import dotenv from 'dotenv';
import crypto from 'crypto';

dotenv.config();

const { DB_HOST, DB_USER, DB_PASS, DB_NAME, DB_PORT } = process.env;

const CATEGORIES = ['PC', '서버', '노트북', '모니터', '업무지원장비'];
const DEPTS = ['기술개발센터', '총괄기획실', '한맥', '삼안', '장헌', '한라'];
const USERS = ['홍길동', '김철수', '이영희', '박지성', '손흥민', '봉준호', '싸이'];
const STATUSES = ['운영', '재고', '수리', '폐기', '기타'];
const CORPS = ['한맥', '삼안', '장헌', '한라', 'PTC', '바론'];

async function generateTestData() {
  const connection = await mysql.createConnection({
    host: DB_HOST,
    user: DB_USER,
    password: DB_PASS,
    database: DB_NAME,
    port: parseInt(DB_PORT || '3306')
  });

  console.log('🚀 무작위 테스트 데이터 생성을 시작합니다 (Crypto UUID 방식)...');

  for (let i = 1; i <= 20; i++) {
    const category = CATEGORIES[Math.floor(Math.random() * CATEGORIES.length)];
    const dept = DEPTS[Math.floor(Math.random() * DEPTS.length)];
    const user = USERS[Math.floor(Math.random() * USERS.length)];
    const status = STATUSES[Math.floor(Math.random() * STATUSES.length)];
    const corp = CORPS[Math.floor(Math.random() * CORPS.length)];
    
    // Crypto UUID 생성
    const id = crypto.randomUUID();
    const assetCode = `TEST-${Date.now().toString().slice(-6)}-${String(i).padStart(3, '0')}`;

    try {
      // 1. asset_core 삽입 (id 수동 지정)
      await connection.query(
        `INSERT INTO asset_core 
        (id, asset_code, category, asset_type, purchase_corp, current_dept, user_current, purchase_date, service_type) 
        VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)`,
        [id, assetCode, category, category, corp, dept, user, '2026-06-10', '내부']
      );

      // 2. asset_spec 삽입
      await connection.query(
        `INSERT INTO asset_spec 
        (asset_id, hw_status, model_name, cpu, ram) 
        VALUES (?, ?, ?, ?, ?)`,
        [id, status, `${category} Model ${i}`, 'Intel i7', '16GB']
      );

      // 3. 초기 이력 삽입
      await connection.query(
        `INSERT INTO asset_history (asset_id, event_type, details, log_date, log_user) 
         VALUES (?, ?, ?, ?, ?)`,
        [id, 'STATUS_CHANGE', `[최초 등록] 테스트 데이터 생성 (${status})`, '2026-06-10', '시스템']
      );

      console.log(`✅ 생성 완료: ${assetCode} (${category} / ${dept} / ${user})`);
    } catch (err) {
      console.error(`❌ 생성 실패 (${i}):`, err.message);
    }
  }

  await connection.end();
  console.log('\n✨ 20개의 테스트 데이터 생성이 완료되었습니다.');
}

generateTestData().catch(console.error);