#!/usr/bin/env python
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import sys
import os

import rospy

# imports the DemuxDelete service 
from topic_tools.srv import DemuxDelete

USAGE = 'USAGE: demux_delete DEMUX_NAME TOPIC'

def call_srv(m, t):
    # There's probably a nicer rospy way of doing this
    s = m + '/delete'
    print "Waiting for service \"%s\""%(s)
    rospy.wait_for_service(s)
    print "Deleting \"%s\" from demux \"%s\""%(t, m)
    try:
        srv = rospy.ServiceProxy(s, DemuxDelete)
	return srv(t)
    except rospy.ServiceException, e:
        print "Service call failed: %s"%e

def usage():
    return "%s "%sys.argv[0]

if __name__ == "__main__":
    args = rospy.myargv()
    if len(args) != 3:
        print USAGE
	sys.exit(1)

    m = args[1]
    t = args[2]
    call_srv(m, t)
