public bool CancelSale(int saleId)
        {
            var sale = _salesRepo.GetSale(saleId);

            if (sale == null)
            {
                return(false);
            }
            else
            {
                //   _salesRepo.DeleteSaleInvoice(saleId);
                if (sale.Finalised == true)
                {
                    var saleItems = _salesRepo.GetProductSalesInTransaction(saleId);
                    if (sale.Canceled == false)
                    {
                        foreach (ProductSale item in saleItems)
                        {
                            _inventoryRepo.IncreaseProductQty(item.Id, 1);
                        }
                    }
                }
                sale.Canceled = true;
                //     _salesRepo.ClearProductSales(saleId);
                _salesRepo.CancelSale(sale);
                //   _salesRepo.DeleteSalePayments(saleId);
                return(true);
            }
        }