public PlanOfPaymentModel GetPaymentSchedule(int creditId)
{
var credit = Context.Credits.FirstOrDefault(e => e.Id == creditId);
PlanOfPaymentModel result = new PlanOfPaymentModel();
result.CreditId = credit.Id;
result.CurrentDay = SystemInformationService.CurrentBankDay;
result.PaymentSchedule = new Dictionary <DateTime, double>();
int countMonthes = credit.PlanOfCredit.MonthPeriod;
double percentPerMonth = credit.PlanOfCredit.Percent / SystemInformationService.CountMonthesInYear;
if (credit.PlanOfCredit.Anuity)
{
double anuityCoefficient =
(percentPerMonth * Math.Pow(1 + percentPerMonth, countMonthes)) /
(Math.Pow(1 + percentPerMonth, countMonthes) - 1);
double paymentPerMonth = anuityCoefficient * (double)credit.Amount;
DateTime paymentDate = credit.StartDate.AddMonths(1);
for (int i = 0; i < countMonthes; i++)
{
result.PaymentSchedule.Add(paymentDate, paymentPerMonth);
paymentDate = paymentDate.AddMonths(1);
}
}
else
{
double creditRest = (double)credit.Amount;
double monthlyReturningCreditBodyPart = (double)credit.Amount / countMonthes;
DateTime paymentDate = credit.StartDate.AddMonths(1);
for (int i = 0; i < countMonthes; i++)
{
double thisMonthPayment = monthlyReturningCreditBodyPart + creditRest * percentPerMonth;
result.PaymentSchedule.Add(paymentDate, thisMonthPayment);
creditRest -= monthlyReturningCreditBodyPart;
paymentDate = paymentDate.AddMonths(1);
}
}
return(result);
}
public PlanOfPaymentModel GetPaymentSchedule(int creditId)
{
var credit = Context.Credits.FirstOrDefault(e => e.Id == creditId);
PlanOfPaymentModel result = new PlanOfPaymentModel();
result.CreditId = credit.Id;
result.CurrentDay = CommonService.StartDate +
new TimeSpan(CommonService.CurrentBankDay, 0, 0, 0);
decimal allAmount = credit.Amount +
credit.Amount * (credit.EndDate - credit.StartDate) *
(decimal)credit.PlanOfCredit.Percent / 100 / CommonService.YearLength;
decimal montlyAmount = credit.PlanOfCredit.Anuity
? allAmount / (credit.EndDate - credit.StartDate) * CommonService.MonthLength
: credit.Amount * CommonService.MonthLength *
(decimal)credit.PlanOfCredit.Percent / 100 / CommonService.YearLength;
result.PaymentSchedule = new Dictionary <DateTime, decimal>();
decimal tempAmount = 0;
for (int i = credit.StartDate + CommonService.MonthLength;
i <= credit.EndDate;
i += CommonService.MonthLength)
{
tempAmount += montlyAmount;
result.PaymentSchedule.Add(CommonService.StartDate + new TimeSpan(i, 0, 0, 0), montlyAmount);
}
DateTime endDate = CommonService.StartDate + new TimeSpan(credit.EndDate, 0, 0, 0);
if (result.PaymentSchedule.Keys.Contains(endDate))
{
result.PaymentSchedule[endDate] += allAmount - tempAmount;
}
else
{
result.PaymentSchedule.Add(endDate, allAmount - tempAmount);
}
return(result);
}
