public static EFIReceipt CalculateTotalAmount(this EFIReceipt receipt, EFIPaymentTypeEnum paymentType) { receipt.Payments = new List <EFIPaymentItem>(); receipt.Payments.Add(new EFIPaymentItem { PaymentType = paymentType.ToDecriptionString(), Amount = receipt.Sales.Sum(item => item.Price * item.Quantity * (1 - item.DiscountPercentage / 100)) }); return(receipt); }
public static EFIReceipt AddPayment(this EFIReceipt receipt, EFIPaymentTypeEnum paymentType, decimal amount) { if (receipt.Payments == null) { receipt.Payments = new List <EFIPaymentItem>(); } receipt.Payments.Add(new EFIPaymentItem { PaymentType = paymentType.ToDecriptionString(), Amount = amount, }); return(receipt); }