/******************************************************************************
 * This program computes employee and employer FICA and FUTA taxes.
 * 
 * Copyright © 2020 Richard Lesh.  All rights reserved.
 *****************************************************************************/

import org.pureprogrammer.Utils;

public class FICA3 {

    static final double SS_TAX_RATE = 0.062;
    static final double SS_LIMIT = 127200.0;
    static final double MEDICARE_TAX_RATE1 = 0.0145;
    static final double MEDICARE_TAX_RATE2 = 0.0235;
    static final double MEDICARE_BREAKPOINT = 200000.0;
    static final double FUTA_TAX_RATE = 0.06;
    static final double FUTA_BREAKPOINT = 7000.0;

    public static void main(String[] args) {
        if (args.length != 2) {
            System.out.println(Utils.format("Syntax: {0:s} annual_wages annual_tips", "FICA3"));
            System.exit(1);
        }

        final double ANNUAL_WAGES = Utils.stodWithDefault(args[0], 0.0);
        final double ANNUAL_TIPS = Utils.stodWithDefault(args[1], 0.0);
        final double ANNUAL_EARNINGS = ANNUAL_WAGES + ANNUAL_TIPS;

        double ssTax;
        if (ANNUAL_EARNINGS < SS_LIMIT) {
            ssTax = ANNUAL_EARNINGS * SS_TAX_RATE;
        } else {
            ssTax = SS_LIMIT * SS_TAX_RATE;
        }

        double medicareTax;
        double employerMedicareTax;
        if (ANNUAL_EARNINGS <= MEDICARE_BREAKPOINT) {
            medicareTax = ANNUAL_EARNINGS * MEDICARE_TAX_RATE1;
            employerMedicareTax = ANNUAL_EARNINGS * MEDICARE_TAX_RATE1;
        } else {
            medicareTax = MEDICARE_BREAKPOINT * MEDICARE_TAX_RATE1 + (ANNUAL_EARNINGS - MEDICARE_BREAKPOINT) * MEDICARE_TAX_RATE2;
            employerMedicareTax = ANNUAL_EARNINGS * MEDICARE_TAX_RATE1;
        }

        double futaTax;
        if (ANNUAL_EARNINGS <= FUTA_BREAKPOINT) {
            futaTax = ANNUAL_EARNINGS * FUTA_TAX_RATE;
        } else {
            futaTax = FUTA_BREAKPOINT * FUTA_TAX_RATE;
        }

        final double NET_EARNINGS = ANNUAL_EARNINGS - ssTax - medicareTax;
        final double EMPLOYER_CONTRIBUTIONS = ANNUAL_EARNINGS + ssTax + employerMedicareTax + futaTax;

        System.out.println(Utils.format("Annual Earnings: ${0:.2f}", ANNUAL_EARNINGS));
        System.out.println(Utils.format("Social Security Tax: ${0:.2f}", ssTax));
        System.out.println(Utils.format("Medicare Tax: ${0:.2f}", medicareTax));
        System.out.println(Utils.format("Employer Social Security Tax: ${0:.2f}", ssTax));
        System.out.println(Utils.format("Employer Medicare Tax: ${0:.2f}", employerMedicareTax));
        System.out.println(Utils.format("Federal Unemployment Tax: ${0:.2f}", futaTax));
        System.out.println(Utils.format("Net Earnings: ${0:.2f}", NET_EARNINGS));
        System.out.println(Utils.format("Employer Contributions: ${0:.2f}", EMPLOYER_CONTRIBUTIONS));
    }
}