#!/usr/bin/env python
from sys import argv

try:
  last = int(argv[1])
except:
  print "No last number"
  exit(2)

last = last + 1
fool_str = ''
file_num = 0
filename =''
c_footer = '\treturn 0;\n}\n'

# put a c source file
def fizzbuzz(string, num):
  filename = 'func_' + str(num) + '.c'
  c_header = '#include<stdio.h>\nint {}'.format('func' + str(num)) + '()\n{\n'
  st = '\tprintf("' + string + '");\n'
  f = open(filename,'w')
  f.write(c_header)
  f.write(st)
  f.write(c_footer)
  f.close()
  return ''

def main(num):
  filename = 'main.c'
  c_header = '#include<stdio.h>\n'
  f = open(filename, 'w')
  f.write(c_header)
  for x in range(num):
     proto = 'int ' + 'func' + str(x) + '();\n'
     f.write(proto)
  f.write('int main()\n{\n')
  for x in range(num):
     func = '\t' + 'func' + str(x) + '();\n'
     f.write(func)
  f.write(c_footer)
  f.close()

def makefile(num):
  filename = 'Makefile'
  header_list = ['all:\n', 'link:\n', 'clean:\n']
  f = open(filename, 'w')
  f.write(header_list[0])
  for x in range(num):
    filename = 'func_' + str(x) + '.c'
    makeall = '\t'+ 'gcc -Wall -c ' + filename + '\n'
    f.write(makeall)
  f.write('\tgcc -Wall -c main.c\n')
  f.write(header_list[1])
  makelink = '\t'+ 'gcc -Wall *.o -o ' + argv[1] + '\n'
  makelink2 = '\t'+ 'strip ' + argv[1] + '\n'
  f.write(makelink)
  f.write(makelink2)
  f.write(header_list[2])
  makeclean = '\t'+ 'rm -rf Makefile func_*.c *.o main.c ' + argv[1] + '\n'
  f.write(makeclean)
  f.close()

for x in range(1,last):
    if not (x % 15):
      fool_str = fool_str + 'fizzbuzz\\n'
    elif not (x % 5):
      fool_str = fool_str + 'buzz\\n'
    elif not (x % 3):
      fool_str = fool_str + 'fizz\\n'
    else: 
      fool_str = fool_str + str(x) + '\\n'
    if (len(fool_str.split('\\n')) == 16) \
        or (x == (last - 1)):
      fool_str = fizzbuzz(fool_str, file_num)
      file_num = file_num + 1

main(file_num)
makefile(file_num)