#!/usr/bin/env python3;
###############################################################################
# This program computes employee and employer FICA and FUTA taxes.
# 
# Copyright © 2020 Richard Lesh.  All rights reserved.
###############################################################################

import Utils
import sys

SS_TAX_RATE = 0.062
SS_LIMIT = 127200.0
MEDICARE_TAX_RATE1 = 0.0145
MEDICARE_TAX_RATE2 = 0.0235
MEDICARE_BREAKPOINT = 200000.0
FUTA_TAX_RATE = 0.06
FUTA_BREAKPOINT = 7000.0

# Begin Main
if (len(sys.argv) != 3) :
    print("Syntax: {0:s} annual_wages annual_tips".format(sys.argv[0]))
    sys.exit(1)

ANNUAL_WAGES = Utils.stodWithDefault(sys.argv[1], 0.0)
ANNUAL_TIPS = Utils.stodWithDefault(sys.argv[2], 0.0)
ANNUAL_EARNINGS = ANNUAL_WAGES + ANNUAL_TIPS

if (ANNUAL_EARNINGS < SS_LIMIT) :
    ss_tax = ANNUAL_EARNINGS * SS_TAX_RATE
else :
    ss_tax = SS_LIMIT * SS_TAX_RATE

if (ANNUAL_EARNINGS <= MEDICARE_BREAKPOINT) :
    medicare_tax = ANNUAL_EARNINGS * MEDICARE_TAX_RATE1
    employer_medicare_tax = ANNUAL_EARNINGS * MEDICARE_TAX_RATE1
else :
    medicare_tax = MEDICARE_BREAKPOINT * MEDICARE_TAX_RATE1 + (ANNUAL_EARNINGS - MEDICARE_BREAKPOINT) * MEDICARE_TAX_RATE2
    employer_medicare_tax = ANNUAL_EARNINGS * MEDICARE_TAX_RATE1

if (ANNUAL_EARNINGS <= FUTA_BREAKPOINT) :
    futa_tax = ANNUAL_EARNINGS * FUTA_TAX_RATE
else :
    futa_tax = FUTA_BREAKPOINT * FUTA_TAX_RATE

NET_EARNINGS = ANNUAL_EARNINGS - ss_tax - medicare_tax
EMPLOYER_CONTRIBUTIONS = ANNUAL_EARNINGS + ss_tax + employer_medicare_tax + futa_tax

print("Annual Earnings: ${0:.2f}".format(ANNUAL_EARNINGS))
print("Social Security Tax: ${0:.2f}".format(ss_tax))
print("Medicare Tax: ${0:.2f}".format(medicare_tax))
print("Employer Social Security Tax: ${0:.2f}".format(ss_tax))
print("Employer Medicare Tax: ${0:.2f}".format(employer_medicare_tax))
print("Federal Unemployment Tax: ${0:.2f}".format(futa_tax))
print("Net Earnings: ${0:.2f}".format(NET_EARNINGS))
print("Employer Contributions: ${0:.2f}".format(EMPLOYER_CONTRIBUTIONS))