private static double GetDaysBewteenInstalments(InstalmentFrequency instalmentFrequency)
{
switch (instalmentFrequency)
{
case InstalmentFrequency.Daily:
return(1);
case InstalmentFrequency.Weekly:
return(7);
case InstalmentFrequency.Fortnightly:
return(14);
case InstalmentFrequency.FourWeekly:
return(28);
case InstalmentFrequency.Monthly:
return(365.25 / 12);
case InstalmentFrequency.Quarterly:
return(365.25 / 4);
case InstalmentFrequency.Annually:
return(365.25);
}
return(1);
}
public void AddRegularInstalments(decimal amount, int numberOfInstalments, InstalmentFrequency instalmentFrequency, decimal daysAfterFirstAdvancefirstInstalment = 0)
{
decimal daysBetweenInstalments = getDaysBewteenInstalments(instalmentFrequency);
if (daysAfterFirstAdvancefirstInstalment == 0)
{
daysAfterFirstAdvancefirstInstalment = daysBetweenInstalments;
}
for (int i = 0; i < numberOfInstalments; i++)
{
_Payments.Add(new Instalment()
{
Amount = amount, DaysAfterFirstAdvance = daysAfterFirstAdvancefirstInstalment + (daysBetweenInstalments * i)
});
}
}
public void AddDecreasingInstalments(decimal amount, decimal interest, int numberOfInstalments, InstalmentFrequency instalmentFrequency, decimal daysAfterFirstAdvancefirstInstalment = 0)
{
decimal daysBetweenInstalments = getDaysBewteenInstalments(instalmentFrequency);
if (daysAfterFirstAdvancefirstInstalment == 0)
{
daysAfterFirstAdvancefirstInstalment = daysBetweenInstalments;
}
decimal glavnica = amount / numberOfInstalments;
decimal lihva = interest;
for (int i = 0; i < numberOfInstalments; i++)
{
decimal vnoskaLihva = (amount * lihva / 100) / 12;
decimal finalInst = vnoskaLihva + glavnica;
amount = amount - glavnica;
if (i % 12 == 0 && i < numberOfInstalments - 1 && i != 0)
{
finalInst += 5000;
}
_Payments.Add(new Instalment()
{
Amount = finalInst, DaysAfterFirstAdvance = daysAfterFirstAdvancefirstInstalment + (daysBetweenInstalments * i)
});
}
}
