public TakePaymentCommand ToCommand(Guid loanId)
{
var command = new TakePaymentCommand(Guid.NewGuid(), loanId,
this.Amount,
DateTimeOffset.Now);
return(command);
}
public void TakePayment(TakePaymentCommand command)
{
if (command.TransactionDateTime < _createdOn)
{
throw new ArgumentException("Transaction date can not be prior to loan creation", nameof(command));
}
if (command.Amount <= decimal.Zero)
{
throw new ArgumentException("Transaction amount must be positive", nameof(command));
}
AddEvent(new PaymentTakenEvent(Guid.NewGuid().ToString(), command.TransactionDateTime, command.Amount));
if (_balance >= decimal.Zero)
{
AddEvent(new LoanSettledEvent(command.TransactionDateTime));
}
if (_balance > decimal.Zero)
{
AddEvent(new LoanOverPaidEvent(command.TransactionDateTime, _balance));
}
}