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

/**
 * 메뉴 목록 조회 (권한 포함)
 * GET /api/admin/menu/list
 */
export default defineEventHandler(async (event) => {
  await requireAdmin(event)
  
  // 메뉴 목록 조회
  const menus = await query<any>(`
    SELECT 
      m.menu_id,
      m.menu_code,
      m.menu_name,
      m.menu_path,
      m.menu_icon,
      m.parent_menu_id,
      m.sort_order,
      m.is_active,
      m.created_at,
      m.updated_at,
      pm.menu_name AS parent_menu_name
    FROM wr_menu m
    LEFT JOIN wr_menu pm ON m.parent_menu_id = pm.menu_id
    ORDER BY m.parent_menu_id NULLS FIRST, m.sort_order
  `)
  
  // 권한 목록 조회
  const roles = await query<any>(`
    SELECT role_id, role_code, role_name
    FROM wr_role
    ORDER BY role_id
  `)
  
  // 메뉴-권한 매핑 조회
  const menuRoles = await query<any>(`
    SELECT menu_id, role_id
    FROM wr_menu_role
  `)
  
  // 메뉴별 권한 매핑 정리
  const menuRoleMap: Record<number, number[]> = {}
  for (const mr of menuRoles) {
    if (!menuRoleMap[mr.menu_id]) {
      menuRoleMap[mr.menu_id] = []
    }
    menuRoleMap[mr.menu_id].push(mr.role_id)
  }
  
  return {
    menus: menus.map(m => ({
      menuId: m.menu_id,
      menuCode: m.menu_code,
      menuName: m.menu_name,
      menuPath: m.menu_path,
      menuIcon: m.menu_icon,
      parentMenuId: m.parent_menu_id,
      parentMenuName: m.parent_menu_name,
      sortOrder: m.sort_order,
      isActive: m.is_active,
      createdAt: m.created_at,
      updatedAt: m.updated_at,
      roleIds: menuRoleMap[m.menu_id] || []
    })),
    roles: roles.map((r: any) => ({
      roleId: r.role_id,
      roleCode: r.role_code,
      roleName: r.role_name
    }))
  }
})