#!/usr/bin/python3.6

import sys, os, glob
from os.path import basename

def convert(argv):
    if len(argv) == 0:
        sys.exit(2)

    for file_argument in argv:
        for file in glob.glob(file_argument):
            file_name,_ = os.path.splitext(file)
            new_file=file_name+'.c10';

            print(f"{file_name} is being process.")
            with open(new_file, 'wb') as c10:

                leader = bytearray([0x55] * 128)
                ba = bytearray()

                with open(file, 'rb') as k7:
                    ba.extend(leader)
                    sign = k7.read(3)
                    if sign != b'\x55\x3c\x00':
                        k7.seek(8)
                        sign = k7.read(3)
                    ba.extend(sign)
                    length = k7.read(1)
                    ba.extend(length)
                    ba.extend(k7.read(length[0]+1))
                    ba.extend(leader)
                    ba.extend(k7.read())

                c10.write(ba)
                c10.close()
            print(f"{new_file} is generated\n")

if __name__ == '__main__':
    """
        Input :
        the input can contain one or more parameter separated by space, these parameters can be
            - the name of a file
            - a file mask (*.k7) for example


        Output :
            - filename with .c10 extension
    """
    convert(sys.argv[1:])