#! /usr/bin/env python

import requests

from requests.auth import HTTPBasicAuth
import sys


if len(sys.argv) != 5:
    print "usage: change-device-portstate onos-node device-id port new_enabled_state"
    sys.exit(1)

node = sys.argv[1]
device_id = sys.argv[2]
port = sys.argv[3]
new_enabled_state = sys.argv[4]

payload = '{ "enabled": ' + new_enabled_state + ' }'

change_request = requests.post('http://' + node + ':8181/onos/v1/devices/' + device_id + '/portstate/' + port,
                               auth=HTTPBasicAuth('onos', 'rocks'),
                               data=payload)

if change_request.status_code != 200:
    print change_request.text
    sys.exit(1)

sys.exit(0)