public static OrderSlipEventArgs Create(string orderNumber, SlipType type, string slipImageFile)
{
if (string.IsNullOrWhiteSpace(orderNumber))
{
throw new ArgumentException("Order number is mandatory");
}
OrderSlipEventArgs result = new OrderSlipEventArgs {
Order = orderNumber.Trim(),
SlipType = type,
SlipImageFile = slipImageFile.Trim()
};
return(result);
}
public Attendant(IPaymentProvider paymentService, ICompositeDispenser dispenser, ISlipService slipService)
{
_paymentService = paymentService;
_dispenser = dispenser;
_slipService = slipService;
Action _issueOrder = () => {
// Print slip
string slipImageFile = string.Empty;
if (_slipService.Print(Order, SlipType.Standard, out slipImageFile))
{
OnSlipPrinted?.Invoke(this, OrderSlipEventArgs.Create(Order.Number, SlipType.Standard, slipImageFile));
}
// else ... what should we do if slip printing failed?
// Dispense products
if (Order.Obtaining == GoodsObtainingMethod.Dispensing)
{
Dispense();
}
};
_paymentService.OnTotalAmountCollected += (sender, e) =>
{
OnMoneyAcceptanceIsOver?.Invoke(this, e);
if (e.ChangeToIssue > 0m) // && cash payment only (probably)
{
GiveChange(e.ChangeToIssue);
}
else
{
_issueOrder();
}
};
_paymentService.OnSomeMoneyIncome += (sender, e) => OnIncomePayment?.Invoke(this, e);
_paymentService.OnSomeChangeHasBeenGiven += (sender, e) => OnIssueMoney?.Invoke(this, e);
_paymentService.OnTotalChangeWasIssued += (sender, e) => { OnTotalChangeIssued?.Invoke(this, e); _issueOrder(); };
}
