/*public InterestTransaction AddDailyInterest()
* {
* //Calculate the interest
* //If debt
* if (Balance < 0 && _debtInterest > 0)
* {
* //Yearly interest to daily interest
* decimal dailyInterest = (decimal)Math.Pow(1 + (double)_debtInterest / 100.0, 1.0 / 365.0) - 1;
*
* //How much to remove from the account (Balance is negative => amount is negative)
* decimal amount = Math.Round(Balance * dailyInterest, 2);
*
* //Remove the rent to the account
* Balance = Balance + amount;
*
* Console.WriteLine("Skuldränta har tagits ifrån konto {0}.", AccountNumber);
*
* InterestTransaction transaction = new InterestTransaction(DateTime.Now, AccountNumber, +amount, Balance);
* return transaction;
* }
*
* //If savings
* if (Balance > 0 && _saveInterest > 0)
* {
* //Yearly interest to daily interest
* decimal dailyInterest = (decimal)Math.Pow(1 + (double)_saveInterest / 100.0, 1.0 / 365.0) - 1;
*
* //How much to add
* decimal amount = Math.Round(Balance * dailyInterest, 2);
*
* //Add the rent to the account
* Balance = Balance + amount;
*
* Console.WriteLine("Sparränta har adderats till konto {0}.", AccountNumber);
*
* InterestTransaction transaction = new InterestTransaction(DateTime.Now, AccountNumber, amount, Balance);
* return transaction;
* }
*
* return null;
* }*/
public InterestTransaction AddDailyInterest()
{
decimal dailyInterest = 0;
//Calculate the interest
//If debt
if (Balance < 0 && _debtInterest > 0)
{
dailyInterest = (decimal)Math.Pow(1 + (double)_debtInterest / 100.0, 1.0 / 365.0) - 1;
Console.WriteLine("Skuldränta har tagits ifrån konto {0}.", AccountNumber);
}
//If savings
else if (Balance > 0 && _saveInterest > 0)
{
dailyInterest = (decimal)Math.Pow(1 + (double)_saveInterest / 100.0, 1.0 / 365.0) - 1;
Console.WriteLine("Sparränta har adderats till konto {0}.", AccountNumber);
}
if (dailyInterest != 0)
{
//How much to add/remove from the account (Balance is negative => amount is negative)
decimal amount = Math.Round(Balance * dailyInterest, 2);
Balance = Balance + amount;
InterestTransaction transaction = new InterestTransaction(DateTime.Now, AccountNumber, +amount, Balance);
return(transaction);
}
return(null);
}
public decimal YearToDateInterestEarned()
{
decimal startingBalance = 0;
decimal interestRate = InterestRate;
var intTrans = new List <InterestTransaction>();
foreach (var t in Transactions)
{
var intTx = new InterestTransaction(t.TransactionDate, t.Amount);
intTrans.Add(intTx);
}
decimal interest = CompoundInterestCalculator.CalculateYearToDateInterest(startingBalance, interestRate, intTrans.ToArray());
return(Math.Round(interest, 2));
}