/// <summary>
/// Calculate interest rate for an account to a specific time
/// The interest rate for Saving account is 6% monthly
/// The interest rate for Home loan account is 3.99% annually
/// </summary>
/// <param name="account">Customer account</param>
/// <param name="toDate">Calculate interest to this date</param>
/// <returns>The added value</returns>
public decimal CalculateInterestToDate(IAccount account, DateTimeOffset toDate)
{
if (!DoesAccountExists(account) || toDate.Date > DateTimeOffset.Now.Date)
{
return(0);
}
DateTimeOffset date = account.OpenedDate;
IStatementRow lastTransactionLog = TransactionLog.Where(x => x.Account.AccountNumber == account.AccountNumber).OrderByDescending(x => x.Date).FirstOrDefault();
if (lastTransactionLog != null)
{
date = lastTransactionLog.Date;
}
int days = (toDate - date.Date).Days;
if (account.AccountNumber.StartsWith(LOAN_ACCOUNT_PREFIX))
{
return(((account.Balance * LOAN_RATE / days) * 100) / 365);
}
else
{
return(((account.Balance * SAVINGS_RATE / days) * 100) / 365);
}
}
private static void showTransactionInfo(IStatementRow transaction, ReadifyBank bank)
{
Console.WriteLine(string.Format("Transaction info: Account: {0}, Date: {1}, " +
"Amount: {2}, Balance: {3}, Description: {4}",
transaction.Account.AccountNumber, transaction.Date,
transaction.Amount, transaction.Balance,
transaction.Description));
}
/// <summary>
/// Calculate interest rate for an account to a specific time
/// The interest rate for Saving account is 6% monthly
/// The interest rate for Home loan account is 3.99% annually
/// </summary>
/// <param name="account">Customer account</param>
/// <param name="toDate">Calculate interest to this date</param>
/// <returns>The added value</returns>
public decimal CalculateInterestToDate(IAccount account, DateTimeOffset toDate)
{
if (!checkAcc(account) || isEarlier(toDate, DateTimeOffset.Now))
{
return(-1);
}
IStatementRow lastStatement = transactionLog.Where(x => x.Account.AccountNumber == account.AccountNumber).Last();
int days = (toDate - lastStatement.Date).Days;
if (account.AccountNumber.StartsWith("LN"))
{
return(days * INTEREST_RATE_LN / 365 * account.Balance);
}
else
{
return(days * INTEREST_RATE_SV / 365 * account.Balance);
}
}
