import { insertReturning, queryOne } from '../../utils/db'

interface CreateEmployeeBody {
  employeeNumber?: string
  employeeName: string
  employeeEmail: string
  employeePhone?: string
  employeePosition?: string
  joinDate?: string
}

/**
 * 사원 등록
 * POST /api/employee/create
 */
export default defineEventHandler(async (event) => {
  const body = await readBody<CreateEmployeeBody>(event)
  
  if (!body.employeeName || !body.employeeEmail) {
    throw createError({ statusCode: 400, message: '이름과 이메일은 필수입니다.' })
  }
  
  // 이메일 중복 체크
  const existing = await queryOne(`
    SELECT employee_id FROM wr_employee_info WHERE employee_email = $1
  `, [body.employeeEmail.toLowerCase()])
  
  if (existing) {
    throw createError({ statusCode: 409, message: '이미 등록된 이메일입니다.' })
  }
  
  const employee = await insertReturning(`
    INSERT INTO wr_employee_info (
      employee_number, employee_name, employee_email,
      employee_phone, employee_position, join_date
    ) VALUES ($1, $2, $3, $4, $5, $6)
    RETURNING *
  `, [
    body.employeeNumber || null,
    body.employeeName,
    body.employeeEmail.toLowerCase(),
    body.employeePhone || null,
    body.employeePosition || null,
    body.joinDate || null
  ])
  
  return {
    success: true,
    employee: {
      employeeId: employee.employee_id,
      employeeName: employee.employee_name,
      employeeEmail: employee.employee_email
    }
  }
})