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

dotenv.config();

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

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

  console.log('🚀 DB 초기화 시작...');

  // 1. 데이터베이스 생성
  await connection.query(`CREATE DATABASE IF NOT EXISTS ${DB_NAME};`);
  await connection.query(`USE ${DB_NAME};`);
  console.log(`✅ 데이터베이스 생성 완료: ${DB_NAME}`);

  // 2. 하드웨어 자산 테이블
  const createHwTable = `
    CREATE TABLE IF NOT EXISTS hw_assets (
      id VARCHAR(50) PRIMARY KEY,
      type VARCHAR(50) NOT NULL COMMENT '개인PC, 서버, 스토리지, 전산비품',
      corp VARCHAR(100) COMMENT '구매법인',
      asset_code VARCHAR(100) COMMENT '자산번호/코드',
      asset_name VARCHAR(255) COMMENT '명칭/용도',
      location VARCHAR(255) COMMENT '설치위치',
      current_org VARCHAR(255) COMMENT '현 사용조직',
      prev_org VARCHAR(255) COMMENT '이전 사용조직',
      manager_main VARCHAR(100) COMMENT '담당자(정)',
      manager_sub VARCHAR(100) COMMENT '담당자(부)',
      ip_address VARCHAR(100) COMMENT 'IP 주소 1',
      ip_address2 VARCHAR(100) COMMENT 'IP 주소 2',
      mac_address VARCHAR(100) COMMENT 'MAC 주소',
      os VARCHAR(100),
      cpu VARCHAR(255),
      ram VARCHAR(100),
      storage1 VARCHAR(255),
      storage2 VARCHAR(255),
      model_name VARCHAR(255),
      purchase_date VARCHAR(50),
      price VARCHAR(100),
      vendor VARCHAR(255) COMMENT '납품업체',
      doc_name VARCHAR(255) COMMENT '품의서명',
      remote_tool VARCHAR(100) COMMENT '원격도구',
      server_id VARCHAR(100),
      server_pw VARCHAR(100),
      monitoring VARCHAR(100),
      remarks TEXT COMMENT '비고',
      created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
  `;

  // 3. 소프트웨어 자산 테이블
  const createSwTable = `
    CREATE TABLE IF NOT EXISTS sw_assets (
      id VARCHAR(50) PRIMARY KEY,
      type VARCHAR(50) NOT NULL COMMENT '구독SW, 영구SW',
      category VARCHAR(100) COMMENT '분야',
      corp VARCHAR(100) COMMENT '구매법인',
      dept VARCHAR(100) COMMENT '부서',
      product_name VARCHAR(255) NOT NULL,
      purchase_date VARCHAR(50),
      subscription_date VARCHAR(50),
      maintenance_status TINYINT(1) DEFAULT 0,
      price VARCHAR(100),
      quantity INT DEFAULT 1,
      account_id VARCHAR(255) COMMENT '계정명',
      vendor VARCHAR(255),
      remarks TEXT,
      created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
  `;

  // 4. 소프트웨어 사용자 매핑 테이블
  const createSwUsersTable = `
    CREATE TABLE IF NOT EXISTS sw_users (
      id VARCHAR(50) PRIMARY KEY,
      sw_id VARCHAR(50),
      corp VARCHAR(100),
      dept VARCHAR(100),
      team VARCHAR(100),
      position VARCHAR(50),
      name VARCHAR(100),
      usage_period VARCHAR(100),
      doc_name VARCHAR(255),
      FOREIGN KEY (sw_id) REFERENCES sw_assets(id) ON DELETE CASCADE
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
  `;

  await connection.query(createHwTable);
  await connection.query(createSwTable);
  await connection.query(createSwUsersTable);

  console.log('✅ 테이블 생성 완료!');
  await connection.end();
  console.log('🏁 DB 초기화 프로세스 종료.');
}

initDB().catch(err => {
  console.error('❌ DB 초기화 실패:', err);
  process.exit(1);
});