// ============================================================================
//
// Copyright (C) 2006-2016 Talend Inc. - www.talend.com
//
// This source code is available under agreement available at
// %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt
//
// You should have received a copy of the agreement
// along with this program; if not, write to Talend SA
// 9 rue Pages 92150 Suresnes, France
//
// ============================================================================
package org.talend.bank;

public class LoanCalculator {

    private double annualInterestRate;

    private int numberOfYears;

    private double loanAmount;

    private java.util.Date loanDate;

    public LoanCalculator() {
    }

    public LoanCalculator(double annualInterestRate, int numberOfYears, double loanAmount) {
        this.annualInterestRate = annualInterestRate;
        this.numberOfYears = numberOfYears;
        this.loanAmount = loanAmount;
        loanDate = new java.util.Date();
    }

    /** Return annualInterestRate */
    public double getAnnualInterestRate() {
        return annualInterestRate;
    }

    /** Set a new annualInterestRate */
    public void setAnnualInterestRate(double annualInterestRate) {
        this.annualInterestRate = annualInterestRate;
    }

    /** Return numberOfYears */
    public int getNumberOfYears() {
        return numberOfYears;
    }

    /** Set a new numberOfYears */
    public void setNumberOfYears(int numberOfYears) {
        this.numberOfYears = numberOfYears;
    }

    /** Return loanAmount */
    public double getLoanAmount() {
        return loanAmount;
    }

    /** Set a newloanAmount */
    public void setLoanAmount(double loanAmount) {
        this.loanAmount = loanAmount;
    }

    /** Find monthly payment */
    public double getMonthlyPayment() {
        double monthlyInterestRate = annualInterestRate / 1200;
        return loanAmount * monthlyInterestRate / (1 - (Math.pow(1 / (1 + monthlyInterestRate), numberOfYears * 12)));
    }

    /** Find total payment */
    public double getTotalPayment() {
        return getMonthlyPayment() * numberOfYears * 12;
    }

    /** Return loan date */
    public java.util.Date getLoanDate() {
        return loanDate;
    }
}