#!/usr/bin/env python

"""very simple time server with limited argument options H.M.S.MS"""

import socket
from datetime import datetime

__author__ = 'Peter McKinney'
__date__ = '14/01/14'
__copyright__ = 'Copyright 2014, Peter McKinney'
__license__ = "FreeBSD"
__maintainer__ = 'Peter McKinney'
__email__ = 'peter.mckinney21@gmail.com'
__status_ = 'Prototype'

HOST = ''                #''socket.gethostname()
PORT = 7286              # Arbitrary non-privileged port
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(5)

print 'Server started on Port <', PORT, '>'

while 1:
    conn, addr = s.accept()
    print 'Connected by', addr
    data = conn.recv(1024)

    print 'with request for -> ', data
    return_string = ""

    if data.startswith("[EXIT]"):
        break

    elif data.startswith("[TIME]"):
        cmd = data.split(" ")
        if len(cmd) > 1:
            cmd = cmd[1].split(".")

            if len(cmd) > 0:
                for i in xrange(len(cmd)):
                    if cmd[i] == "H":
                        return_string += str(datetime.now().hour)
                    elif cmd[i] == "M":
                        return_string += str(datetime.now().minute)
                    elif cmd[i] == "S":
                        return_string += str(datetime.now().second)
                    elif cmd[i] == "MS":
                        return_string += str(datetime.now().microsecond)

                    if i+1 < len(cmd):
                        return_string += "."

        else:
            return_string = str(datetime.now().time())

    conn.send(return_string)
    conn.close()
	
s.close()