#!/usr/bin/env python
# SPDX-License-Identifier: GPL-2.0-or-later
#
# Copyright (C) 2012 Red Hat, Inc.
#

import sys
import gi

gi.require_version("NM", "1.0")
from gi.repository import GLib, NM

#
#  This example shows how to get NMIP4Config from NMDevice after it is activated.
#
#  We listen to notify::ip4-config glib signal. This signal is trigered by D-Bus
#  PropertiesChanged for IP4Config that comes after StateChanged for NMDevice.
#

main_loop = None


def do_notify(self, property):
    print("notify: %s" % property)
    ip4cfg = self.get_ip4_config()
    if ip4cfg is not None:
        print("ip4-config: %s" % ip4cfg.get_path())
        main_loop.quit()


def state_changed(obj, arg1, arg2, arg3):
    print("State changed: New: %d, Old: %d, Reason: %d" % (arg1, arg2, arg3))
    # Device is connected
    if arg1 == 100:
        obj.connect("notify::ip4-config", do_notify)


if __name__ == "__main__":
    if len(sys.argv) != 2:
        sys.exit("Usage: %s <interface>" % sys.argv[0])
    dev_iface = sys.argv[1]

    c = NM.Client.new(None)
    dev = c.get_device_by_iface(dev_iface)
    if dev is None:
        sys.exit("Device '%s' not found" % dev_iface)
    print("Device: %s - %s" % (dev_iface, dev.get_device_type().value_name))
    print("---------------------------------------")

    dev.connect("state-changed", state_changed)
    main_loop = GLib.MainLoop()
    main_loop.run()