private static void InvoiceEvent(Loan loan, LoanEvent loanEvent)
{
var firstDayOfMonth = new DateTime(loanEvent.EventTime.Year, loanEvent.EventTime.Month, 1);
var firstDayOfNextMonth = firstDayOfMonth.AddMonths(1);
loan.AddInvoice(loanEvent.EventTime, firstDayOfMonth, firstDayOfNextMonth, loanEvent.Amount);
}
private List <LoanPayment> CreateLoanPaymentPlan(Loan loan, bool addSinglePayment = false)
{
// 4 year, 10 percentage, 16000 principal. Gives 0.05 left after 4 years. What is the worst outcome?
// 1 year, 10 percentage, 10000 principal. Gives a ton of rounding errors. Have to be fixed with rounding in both setting rate, principal, and total.
var invoices = new List <LoanPayment>();
var baseDate = loan.PayoutDate;
Invoice tmp = null;
while (loan.CurrentPrincipal >= 0.01)
{
baseDate = baseDate.AddMonths(1);
var date = baseDate.AddDays(-1);
var invoice = loan.AddInvoice(date, new DateTime(date.Year, date.Month, 1), baseDate, 0.0);
loan.CurrentPrincipal -= invoice.Principal;
if (addSinglePayment && invoices.Count() == 5)
{
var p = invoice.Pay(invoice.InvoiceDate, invoice.Principal / 2);
invoice.Principal -= p.Principal + p.Reminder;
invoice.Interest -= p.Interest;
invoice.LateFee -= p.LateFee;
}
invoices.Add(new LoanPayment
{
PeriodFormatted = invoice.InvoiceDate.ToString("yyyy-MM-dd"),
Principal = invoice.Principal,
Interest = invoice.Interest,
});
tmp = invoice;
}
//var q = invoices.Sum(s => s.Principal);
//var w = invoices.Sum(s => s.Interest);
//var e = tmp.Principal;
//var f = tmp.Interest;
return(invoices);
}