package orderService

import (
	"strconv"

	"git.ma-al.com/goc_daniel/b2b/app/delivery/middleware/perms"
	"git.ma-al.com/goc_daniel/b2b/app/model"
	"git.ma-al.com/goc_daniel/b2b/app/repos/cartsRepo"
	"git.ma-al.com/goc_daniel/b2b/app/repos/ordersRepo"
	"git.ma-al.com/goc_daniel/b2b/app/service/addressesService"
	"git.ma-al.com/goc_daniel/b2b/app/utils/query/filters"
	"git.ma-al.com/goc_daniel/b2b/app/utils/query/find"
	"git.ma-al.com/goc_daniel/b2b/app/utils/responseErrors"
)

type OrderService struct {
	ordersRepo       ordersRepo.UIOrdersRepo
	cartsRepo        cartsRepo.UICartsRepo
	addressesService *addressesService.AddressesService
}

func New() *OrderService {
	return &OrderService{
		ordersRepo:       ordersRepo.New(),
		cartsRepo:        cartsRepo.New(),
		addressesService: addressesService.New(),
	}
}

func (s *OrderService) Find(user *model.Customer, p find.Paging, filt *filters.FiltersList) (find.Found[model.CustomerOrder], error) {
	if !user.HasPermission(perms.ViewAllOrders) {
		// append filter to view only this user's orders
		idStr := strconv.FormatUint(uint64(user.ID), 10)
		filt.Append(filters.Where("b2b_customer_orders.user_id = " + idStr))
	}

	return s.ordersRepo.Find(user.ID, p, filt)
}

func (s *OrderService) PlaceNewOrder(user_id uint, cart_id uint, country_id uint, address_info string) error {
	_, err := s.addressesService.ValidateAddressJson(address_info, country_id)
	if err != nil {
		return err
	}

	amt, err := s.cartsRepo.UserHasCart(user_id, cart_id)
	if err != nil {
		return err
	}
	if amt <= 0 {
		return responseErrors.ErrUserHasNoSuchCart
	}

	cart, err := s.cartsRepo.RetrieveCart(user_id, cart_id)
	if err != nil {
		return err
	}
	if len(cart.Products) == 0 {
		return responseErrors.ErrEmptyCart
	}

	// all checks passed
	return s.ordersRepo.PlaceNewOrder(user_id, cart_id, country_id, address_info)
}

func (s *OrderService) ChangeOrderAddress(user *model.Customer, order_id uint, country_id uint, address_info string) error {
	return nil
}

func (s *OrderService) ChangeOrderStatus(user *model.Customer, order_id uint, status string) error {
	return nil
}