public MortgageResult GetMortgageResult(MortgageInput mortgageInput)
{
var monthlyMortgageResult = MonthlyMortgageCalculate(mortgageInput.LoanValueAmount, mortgageInput.MaturityPeriod);
var isEligible = _eligibilityCheckProvider.IsEligibleForMortgage(monthlyMortgageResult, mortgageInput);
return(new MortgageResult(monthlyMortgageResult, isEligible));
}
public bool IsEligibleForMortgage(double monthlyMortgageCost, MortgageInput mortgageInput)
{
var totalMortgageCost = monthlyMortgageCost * 12 * mortgageInput.MaturityPeriod;
return(IsTotalMortgageNotExceedHomeValue(totalMortgageCost, mortgageInput.HomeValueAmount) &&
IsMortgageNotExceedIncome(totalMortgageCost, mortgageInput.IncomeAmount));
}
static void Main(string[] args)
{
Console.WriteLine("Mortgage Application");
Console.ForegroundColor = ConsoleColor.Green;
var mortgageValues = new MortgageInput()
{
LoanDescription = "This is a test loan",
LoanTerm = 30,
InterestRate = 0.03875M,
DownPayment = 11960M,
TotalLoanAmount = 119600M,
StartDate = new DateTime(2021, 5, 1)
};
var validateMortgageInput = new MortgageInputValidator();
var resultTraditionalMortgageInput = validateMortgageInput.Validate(mortgageValues);
var amortizationSchedule = mortgageValues.CalculatedPeriodMortgageData();
//--------------------------------------------------------------------------------------------------------
List <ExtraPayments> testExtraPayments = new List <ExtraPayments>();
var extraPayment1 = new ExtraPayments()
{
ExtraPaymentAmount = 1000M,
NumberofPayments = 150,
PaymentInterval = 1,
StartDate = new DateTime(2021, 6, 1)
};
var validateExtraPayment1 = new ExtraPaymentsValidator();
var result1 = validateExtraPayment1.Validate(extraPayment1);
if (result1.IsValid)
{
testExtraPayments.Add(extraPayment1);
}
var extraPayment2 = new ExtraPayments()
{
ExtraPaymentAmount = 500M,
NumberofPayments = 20,
PaymentInterval = 3,
StartDate = new DateTime(2021, 6, 1)
};
var validateExtraPayment2 = new ExtraPaymentsValidator();
var result2 = validateExtraPayment2.Validate(extraPayment2);
if (result2.IsValid)
{
testExtraPayments.Add(extraPayment2);
}
var extraPayment3 = new ExtraPayments()
{
ExtraPaymentAmount = 10M,
NumberofPayments = 10,
PaymentInterval = 1,
StartDate = new DateTime(2021, 6, 1)
};
var validateExtraPayment3 = new ExtraPaymentsValidator();
var result3 = validateExtraPayment3.Validate(extraPayment3);
if (result3.IsValid)
{
testExtraPayments.Add(extraPayment3);
}
var testMortgageValuesExtraPayments = new MortgageInputExtraPayments()
{
LoanDescription = "This is a test loan",
LoanTerm = 30,
InterestRate = 0.03875M,
DownPayment = 11960M,
TotalLoanAmount = 119600M,
StartDate = new DateTime(2021, 5, 1),
ExtraPayments = testExtraPayments
};
var validateMortgageValues = new MortgageInputExtraPaymentsValidator();
var mortgageResult = validateMortgageValues.Validate(testMortgageValuesExtraPayments);
//Create Amortization Schedule
var testAmortizationSchedule = testMortgageValuesExtraPayments.CalculatedPeriodMortgageData();
//Calculate Summary Values
var summaryMortgageInfo = new MortgageExecutiveSummary();
summaryMortgageInfo.CalculateMortgageExecutiveSummary(testAmortizationSchedule, testMortgageValuesExtraPayments);
//Print out results
foreach (var period in testAmortizationSchedule)
{
Console.WriteLine($"Period No:{period.IDNumber}");
Console.WriteLine($"Date:{period.DateColumn}");
Console.WriteLine($"Remaining Balance:{String.Format("{0:C2}", period.RemainingBalance)}");
Console.WriteLine($"Principal Paid:{String.Format("{0:C2}", period.PrincipalPaid)}");
Console.WriteLine($"Interest Paid:{String.Format("{0:C2}", period.InterestPaid)}");
Console.WriteLine($"Fixed Payment:{String.Format("{0:C2}", period.fixedPayment)}");
Console.WriteLine($"Total Interest Paid:{String.Format("{0:C2}", period.TotalInterestPaid)}");
Console.WriteLine($"Extra Payment:{String.Format("{0:C2}", period.ExtraPayment)}");
Console.WriteLine($"Extra Payment Cumulative:{String.Format("{0:C2}", period.CumulativeExtraPayment)}");
Console.WriteLine($"------------------------------------------------");
}
//Final Results
Console.WriteLine("");
Console.WriteLine($"------------------------------------------------");
Console.WriteLine("FINAL RESULTS");
Console.WriteLine($"------------------------------------------------");
//--------------------------------------------------------------------------------
//Excel Print
var excelApp = new ExcelMortgageOutput();
var excelbyteArray = excelApp.CreateExcelTestFile(amortizationSchedule, testAmortizationSchedule, summaryMortgageInfo);
//Text File Print
var textPrint = new TextMortgageOutput();
var textByteArray = textPrint.CreateTextFile(testAmortizationSchedule);
}
public bool ValidateMortgageCalculateRequest(MortgageInput mortgageInput)
{
return(mortgageInput.IsValidMaturityPeriodInput());
}
public static bool IsValidMaturityPeriodInput(this MortgageInput value)
{
return(value.MaturityPeriod >= 1 && value.MaturityPeriod <= 12);
}
