public LoanViewModel(IMessageBus messenger, Loan loan)
{
myLoan = loan;
_OweTo = myLoan.Lender.Name;
_APR = myLoan.APR;
_OutstandingBalance = myLoan.OutstandingBalance(DateTime.Now);
_MakePaymentCommand = new DelegateCommand(MakePaymentExecute, MakePaymentCanExecute);
myMessenger = messenger;
myMessenger
.Listen<Loan>("PaymentMade")
.ObserveOnDispatcher()
.Subscribe(
l =>
{
if (l == myLoan)
{
myMessenger.SendMessage<Person>(loan.Lender, "BalanceChanged");
myMessenger.SendMessage<Person>(loan.Borrower, "BalanceChanged");
this.PaymentMaker = null;
this.OutstandingBalance = myLoan.OutstandingBalance(DateTime.Now);
}
});
}
public LoanPaymentViewModel(IMessageBus messenger, Loan loan)
{
myLoan = loan;
myMessenger = messenger;
_MakePaymentCommand = new DelegateCommand(MakePaymentExecute, MakePaymentCanExecute);
}
public bool Borrow(Person lender, decimal amount)
{
Contract.Requires(lender != null);
Contract.Requires(amount > 0);
if (!lender.Withdraw(amount))
{
return false;
}
else
{
this.Deposit(amount);
}
var loan = new Loan(lender, this, amount, 6.0m);
this._Borrowed.Add(loan);
lender._Lent.Add(loan);
return true;
}