public void ProcessContract(Contract contract, int month, IOnlinePaymentService onlinePaymentService)
{
double amountSimple = contract.TotalValue / month;
for (int i = 1; i <= month; i++)
{
double updateAmount = onlinePaymentService.Interest(amountSimple, i);
double amountTotal = onlinePaymentService.PaymentFee(updateAmount);
DateTime date = contract.DateContract.Date.AddMonths(i);
contract.AddItem(new Installments(date, amountTotal));
}
}
