#!/usr/bin/env python

"""

Example of a UDP txosc sender with Twisted.

This example is in the public domain.

"""

import csv

import sys

import time

from twisted.internet import reactor

from txosc import osc

from txosc import dispatch

from txosc import async

class UDPSenderApplication(object):

    """

    Example that sends UDP messages.

    """

    def __init__(self, port, host, address, rows):

        self.port = port

        self.host = host

        self.client = async.DatagramClientProtocol()

        self._client_port = reactor.listenUDP(0, self.client)

        self.rows = rows

        self.address = address

        reactor.callLater(0, self.send_messages)

    def _send(self, element):

        # This method is defined only to simplify the example

        self.client.send(element, (self.host, self.port))

        print("Sent %s to %s:%d" % (element, self.host, self.port))

    def send_messages(self):

        tc = 0

        for row in self.rows:

            row_conv = [ osc.TimeTagArgument(float(row[0]))] + [osc.IntArgument(int(a)) for a in row[1:]]

            time.sleep((row_conv[1].value-tc)/10**3)

            tc = row_conv[1].value

            self._send(osc.Message(self.address,*row_conv))

            break

        print("Goodbye.")

        reactor.callLater(0.1, reactor.stop)

if __name__ == "__main__":

    with open(sys.argv[1], 'rU') as datafile:

        reader = csv.reader(datafile, delimiter=' ')

        app = UDPSenderApplication(9090, "127.0.0.1", '/pianoroll/test/', list(reader))

    reactor.run()