import { query } from '../../utils/db'

/**
 * 프로젝트 목록 조회
 * GET /api/project/list
 */
export default defineEventHandler(async (event) => {
  const queryParams = getQuery(event)
  const status = queryParams.status as string || null
  const businessId = queryParams.businessId ? Number(queryParams.businessId) : null
  
  let sql = `
    SELECT p.*, 
      b.business_name,
      (SELECT employee_name FROM wr_employee_info e 
       JOIN wr_project_manager_history pm ON e.employee_id = pm.employee_id 
       WHERE pm.project_id = p.project_id AND pm.role_type = 'PM' 
       AND (pm.end_date IS NULL OR pm.end_date >= CURRENT_DATE) 
       LIMIT 1) as pm_name,
      (SELECT employee_name FROM wr_employee_info e 
       JOIN wr_project_manager_history pm ON e.employee_id = pm.employee_id 
       WHERE pm.project_id = p.project_id AND pm.role_type = 'PL' 
       AND (pm.end_date IS NULL OR pm.end_date >= CURRENT_DATE) 
       LIMIT 1) as pl_name
    FROM wr_project_info p
    LEFT JOIN wr_business b ON p.business_id = b.business_id
  `
  
  const conditions: string[] = []
  const params: any[] = []
  let paramIndex = 1
  
  if (status) {
    conditions.push(`p.project_status = $${paramIndex++}`)
    params.push(status)
  }
  
  if (businessId) {
    conditions.push(`p.business_id = $${paramIndex++}`)
    params.push(businessId)
  }
  
  if (conditions.length > 0) {
    sql += ' WHERE ' + conditions.join(' AND ')
  }
  
  sql += ' ORDER BY p.created_at DESC'
  
  const projects = await query(sql, params)
  
  return {
    projects: projects.map((p: any) => ({
      projectId: p.project_id,
      projectCode: p.project_code,
      projectName: p.project_name,
      projectType: p.project_type || 'SI',
      clientName: p.client_name,
      projectDescription: p.project_description,
      startDate: p.start_date,
      endDate: p.end_date,
      contractAmount: p.contract_amount,
      projectStatus: p.project_status,
      businessId: p.business_id,
      businessName: p.business_name,
      pmName: p.pm_name,
      plName: p.pl_name,
      createdAt: p.created_at
    }))
  }
})