/** This program will print out information regarding a loan and also capture the output of a file.
 * Class: CST183
 * Due 10/19/17
 * Name: Taylen White
 */

import javax.swing.JOptionPane;

public class LoanCalc{

    public static void main(String args[]) {

        // declare variables
        double monthlyPayment;
        int loanTerm;
        double loanAmount;
        int interestRate;

        loanTerm = getLoanTerm();
        if (loanTerm < 1 || loanTerm > 30) {
            JOptionPane.showMessageDialog(null, "Your loan term must be within the range of 1 - 30 years. ");
        }

        loanAmount = getLoanAmount();
        if (loanAmount < 0 || loanAmount > 1000000) {
            JOptionPane.showMessageDialog(null, "Your loan amount must be within the range of 0 - $1,000,000. ");
        }

        interestRate = getInterestRate();
        if (interestRate < 1 || interestRate > 8) {
            JOptionPane.showMessageDialog(null, "Your interest rate must be from 1 - 8%. ");
        }
        calculateMonthlyPayment(loanAmount, interestRate, loanTerm);
        JOptionPane.showMessageDialog(null, "Your monthly payment will be" + monthlyPayment );
    }

    public static int getLoanTerm()
    {
        String inputStringLoanTerm = JOptionPane.showInputDialog(null, "Please input your desired loan term.(Between 1 and 30 years) ");
        return Integer.parseInt(inputStringLoanTerm);

    }

    public static double getLoanAmount()
        {
            String inputStringLoanAmount = JOptionPane.showInputDialog(null, "Please input your desired loan amount. (Between 0 and $1,000,000) ");
            return Integer.parseInt(inputStringLoanAmount);

        }

    public static int getInterestRate()
        {
            String inputStringInterestRate = JOptionPane.showInputDialog(null, "Please input your desired interest rate. (Between 1 - 8%) ");
            return Integer.parseInt(inputStringInterestRate);

        }

    public static double calculateMonthlyPayment(double principal, int monthlyInterestRate, int numberOfMonths)
        {
            double monthlyPayment = principal / (1-(1 + monthlyInterestRate)- numberOfMonths / monthlyInterestRate);
            return monthlyPayment;
        }
    //public static double CreateAmortTable()
       // {

           // return amortTable;
       // }
}