#!/usr/bin/env python2

# This is TCPServer.py

from socket import *
import argparse

def main(portNumber):
    serverPort = portNumber
    serverSocket = socket(AF_INET, SOCK_STREAM)
    serverSocket.bind(('', serverPort))
    serverSocket.listen(1)
    print 'The Server is ready to receive'

    try:
        while 1:
            connectionSocket, addr = serverSocket.accept()
            sentence = connectionSocket.recv(1024)
            capitalizedSentence = sentence.upper()
            connectionSocket.send(capitalizedSentence)
            connectionSocket.close()

    except KeyboardInterrupt:
        print "\nClosing Server"
        serverSocket.close()

if __name__ == "__main__":
    # create a parser object
    parser = argparse.ArgumentParser(prog="py-web-serv",description = "A simple python web server.")

    # arguments
    parser.add_argument("-p", "--port", metavar='P', default=6789, type=int, help="The port to run your server on. Default is 6789.")

    # parse it
    args = parser.parse_args()

    # run the code!
    main(args.port)