"""
Listen to some available signals from NetworkManager
"""

import dbus.mainloop.glib
from gi.repository import GObject
import NetworkManager
import time

def out(msg):
    print("%s %s" % (time.strftime('%H:%M:%S'), msg))

def statechange(nm, interface, signal, state):
    out("State changed to %s" % NetworkManager.const('STATE', state))

def adddevice(nm, interface, signal, device_path):
    try:
        out("Device %s added" % device_path.IpInterface)
    except NetworkManager.ObjectVanished:
        # Sometimes this signal is sent for *removed* devices. Ignore.
        pass

def main():
    dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
    NetworkManager.NetworkManager.OnStateChanged(statechange)
    NetworkManager.NetworkManager.OnDeviceAdded(adddevice)

    out("Waiting for signals")
    loop = GObject.MainLoop()
    loop.run()

if __name__ == '__main__':
    main()