import java.util.*;

public class RetirementCalculatorModel
{
    /* input fields */
    private HashMap<String, Double> myFields;

    public RetirementCalculatorModel()
    {
        myFields = new HashMap<String, Double>();
        reset();
    }

    public void setField(String name, double value)
    {
        myFields.put(name, value);
    }

    public double getField(String name)
    {
        return (myFields.containsKey(name)) ? myFields.get(name) : 0;
    }

    public void reset()
    {
        myFields.clear();

        setField("current income", 0);
        setField("income wanted", 0);
        setField("employer pension", 0);
        setField("part time income", 0);
        setField("other income", 0);
        setField("age", 30);
        setField("retirement age", 65);
        setField("savings", 0);
        setField("life expectancy", 82);

        calculate();
    }

    public void calculate()
    {
        setField("social security", calculateSocialSecurity());
    }

    private double calculateMakeUpFactor()
    {
        int retire_age_index = (int) getField("retirement age");
        int life_expectancy_index = (int) getField("life expectancy");

        if      (retire_age_index == 55)        retire_age_index = 0;
        else if (retire_age_index == 60)        retire_age_index = 1;
        else if (retire_age_index == 70)        retire_age_index = 3;
        else                                    retire_age_index = 2;

        if      (life_expectancy_index == 86)   life_expectancy_index = 1;
        else if (life_expectancy_index == 89)   life_expectancy_index = 2;
        else if (life_expectancy_index == 92)   life_expectancy_index = 3;
        else if (life_expectancy_index == 94)   life_expectancy_index = 4;
        else if (life_expectancy_index == 97)   life_expectancy_index = 5;
        else                                    life_expectancy_index = 0;

        final double makeup_factors[] = {
            18.79, 20.53, 21.71, 22.79, 23.46, 24.40,
            16.31, 18.32, 19.68, 20.93, 21.71, 22.79,
            13.45, 15.77, 17.35, 18.79, 19.68, 20.93,
            10.15, 12.83, 14.65, 16.31, 17.35, 18.79
        };

        return makeup_factors[retire_age_index * 6 + life_expectancy_index];
    }

    private double calculateRetirementFactor()
    {
        int retire_age_index = (int) getField("retirement age");
        if      (retire_age_index == 55)        return 8.8;
        else if (retire_age_index == 60)        return 4.7;
        else                                    return 0.0;
    }
    
    private double calculateSocialSecurity()
    {
        double current_income = getField("current income");
        if      (current_income < 25000.0)
            return 8000.0;
        else if (current_income <= 40000.0)
            return 12000.0;
        else
            return 14500.0;
    }

    private double calculateSavingsFactor()
    {
        return 0.0;
    }
}