#!/usr/bin/python3

import SocketServer
#import socketserver
import time


class MyTCPHandler(SocketServer.BaseRequestHandler):
#class MyTCPHandler(socketserver.BaseRequestHandler):
    """
    The RequestHandler class for our server.

    It is instantiated once per connection to the server, and must
    override the handle() method to implement communication to the
    client.
    """
    data = \
b""",1.7,-30.40,M,-13.9,M,,*7D\r
$GPGGA,193221.00,2037.72792,N,08704.08478,W,1,04,1.7,-30.40,M,-13.9,M,,*7D\r
$GPGSA,A,3,10,28,09,13,,,,,,,,,03.4,01.7,03.0*00\r
$GPGSV,3,1,12,28,14,150,41,09,15,254,41,10,43,192,47,13,06,081,36*7A\r
$GPGSV,3,2,12,02,56,323,,04,41,024,,12,31,317,,17,31,085,*72\r
$GPGSV,3,3,12,05,15,318,,24,02,246,,33,08,096,,35,45,118,*7D\r
$GPRMC,193221.00,A,2037.7279,N,08704.0848,W,00.1,201.8,231207,01,W,A*2D\r
$GPZDA,193223.00,23,12,2007,00,00*69\r
"""
    
    """ms betwen two sends."""
    interval = 0.01
    blocks = (35, 5, 5, 5, 10, )

    def handle(self):
        # self.request is the TCP socket connected to the client
        #self.data = self.request.recv(1024).strip()
        # just send back the same data, but upper-cased
        _data = self.data
        for b in self.blocks:
            self.request.sendall(_data[:b])
            print(repr(_data[:b]))
            _data = _data[b:]
            time.sleep(self.interval)
        self.request.sendall(_data)


class MyTCPServer(SocketServer.TCPServer):
#class MyTCPServer(socketserver.TCPServer):
    def __init__(self, *argv, **argc):
        self.allow_reuse_address = True
        SocketServer.TCPServer.__init__(self, *argv, **argc)
#        socketserver.TCPServer.__init__(self, *argv, **argc)


if __name__ == "__main__":
    HOST, PORT = "localhost", 50100

    server = MyTCPServer((HOST, PORT), MyTCPHandler)
    server.serve_forever()