/// <summary>
/// Constructor of Loan Class which sets CSVFileName, CSVDelimiter, LoanAmount, PaymentPeriod and NumberOfPeriods.
/// </summary>
/// <param name="csvFileName">Contains list of lenders in CSV format - (Name, Rate, Avaiable).</param>
/// <param name="loanAmount">The demanding amount by borrower.</param>
/// <param name="paymentPeriod">Period in months when the borrowed money is returned. Default is 36 months.</param>
/// <param name="numberOfPeriods">Monthly Compound Interest Rate Period in months. Default is 12 month (anually).</param>
/// <param name="csvDelimiterChar">Delimeter for the CSV file to be parsed. Default charater is comma ','.</param>
public LoanCalculator(string csvFileName, long loanAmount, int paymentPeriod = 36, int numberOfPeriods = 12, long minimumLimitOfLoanAmount = 1000, long maximumLimitOfLoanAmount = 15000, char csvDelimiterChar = ',')
{
fileValidationStatus = csvFileName.ValidateFileName();
if (fileValidationStatus == FileValidationStatus.Validated)
{
CSVFileName = csvFileName;
}
else
{
throw new Exception(fileValidationStatus.ToString() + " - Check whether the file exists or the filename is correct");
}
loanAmountValidationStatus = loanAmount.ValidateLoanAmount(minimumLimitOfLoanAmount, maximumLimitOfLoanAmount);
if (loanAmountValidationStatus == LoanAmountValidationStatus.Validated)
{
LoanAmount = loanAmount;
}
else
{
throw new Exception(loanAmountValidationStatus.ToString());
}
CSVDelimiterChar = csvDelimiterChar;
MinimumLimitOfLoanAmount = minimumLimitOfLoanAmount;
MaximumLimitOfLoanAmount = maximumLimitOfLoanAmount;
PaymentPeriod = paymentPeriod;
NumberOfPeriods = numberOfPeriods;
LendersPool = new List<Lender>();
ParticipatingLendersList = new List<ParticipatingLender>();
}
/// <summary>
/// Constructor to create triangle of claims.
/// </summary>
/// <param name="csvFileName">CSV file name which has claims data</param>
/// <param name="csvDelimiterChar">csv delimiter. Default is ','.</param>
public TriangleOfClaims(string csvFileName, char csvDelimiterChar = ',')
{
//Validating file name and location
fileValidationStatus = csvFileName.ValidateFileName();
if (fileValidationStatus == FileValidationStatus.Validated)
{
CSVFileName = csvFileName;
CSVDelimiterChar = csvDelimiterChar;
}
else
{
throw new Exception(fileValidationStatus.ToString() + " - Check whether the file exists or the filename is correct");
}
}
/// <summary>
/// Constructor to create triangle of claims.
/// </summary>
/// <param name="csvFileName">CSV file name which has claims data</param>
/// <param name="csvDelimiterChar">csv delimiter. Default is ','.</param>
public TriangleOfClaims(string csvFileName, char csvDelimiterChar = ',')
{
//Validating file name and location
fileValidationStatus = csvFileName.ValidateFileName();
if (fileValidationStatus == FileValidationStatus.Validated)
{
CSVFileName = csvFileName;
CSVDelimiterChar = csvDelimiterChar;
}
else
{
throw new Exception(fileValidationStatus.ToString() + " - Check whether the file exists or the filename is correct");
}
}
/// <summary>
/// Valdates the file given filename
/// </summary>
/// <param name="fileName">Input file as CSV</param>
/// <returns></returns>
public static FileValidationStatus ValidateFileName(this string fileName)
{
FileValidationStatus fileValidationStatus = FileValidationStatus.Validated;
//Check if the file extension of the filename is csv
if (System.IO.Path.GetExtension(fileName).ToLower() != ".csv")
{
fileValidationStatus = FileValidationStatus.CSVFileExtension_Error;
return(fileValidationStatus);
}
//Check if the file Exists
if (!System.IO.File.Exists(fileName))
{
fileValidationStatus = FileValidationStatus.CSVFileDoesNotExist_Error;
return(fileValidationStatus);
}
return(fileValidationStatus);
}
