/* $Id$ */

/***
  This file is part of avahi.
 
  avahi is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as
  published by the Free Software Foundation; either version 2.1 of the
  License, or (at your option) any later version.
 
  avahi is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
  Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public
  License along with avahi; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  USA.
***/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <avahi-core/core.h>

#define DBUS_API_SUBJECT_TO_CHANGE
#include <dbus/dbus.h>
#include <dbus/dbus-glib-lowlevel.h>

#define DBUS_SERVICE_AVAHI "org.freedesktop.Avahi"

static DBusHandlerResult
do_register (DBusConnection *conn, DBusMessage *message)
{
	DBusError error;
	char *s;

	dbus_error_init (&error);

	dbus_message_get_args (message, &error,
			DBUS_TYPE_STRING, &s,
			DBUS_TYPE_INVALID);

	if (dbus_error_is_set (&error))
	{
		g_warning ("Error parsing register attempt");
		dbus_error_free (&error);

		return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
	}

	g_message ("Register received from: %s", s);

	return DBUS_HANDLER_RESULT_HANDLED;
}

static DBusHandlerResult
signal_filter (DBusConnection *conn, DBusMessage *message, void *user_data)
{
	GMainLoop *loop = user_data;
	DBusError error;

	dbus_error_init (&error);

	g_message ("dbus: interface=%s, path=%s, member=%s",
			dbus_message_get_interface (message),
			dbus_message_get_path (message),
			dbus_message_get_member (message));

	if (dbus_message_is_signal (message, DBUS_INTERFACE_LOCAL,
				"Disconnected"))
	{
		/* No, we shouldn't quit, but until we get somewhere
		 * usefull such that we can restore our state, we will */
		g_warning ("Disconnnected from d-bus");

		g_main_loop_quit (loop);
		return DBUS_HANDLER_RESULT_HANDLED;
	} else if (dbus_message_is_method_call (message, DBUS_SERVICE_AVAHI,
				"Register"))
	{
		return do_register (conn, message);
	} else if (dbus_message_is_signal (message, DBUS_SERVICE_DBUS,
				"NameAcquired"))
	{
		char *name;

		dbus_message_get_args (message, &error,
				DBUS_TYPE_STRING, &name,
				DBUS_TYPE_INVALID);

		if (dbus_error_is_set (&error))
		{
			g_warning ("Error parsing NameAcquired message");
			dbus_error_free (&error);

			return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
		}

		g_message ("dbus: NameAcquired (%s)", name);

		return DBUS_HANDLER_RESULT_HANDLED;
	}

	g_message ("dbus: missed event");

	return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
		
int main(int argc, char *argv[]) {
    GMainLoop *loop = NULL;
    DBusConnection *bus;
    DBusError error;

    loop = g_main_loop_new(NULL, FALSE);

    dbus_error_init (&error);

    bus = dbus_bus_get (DBUS_BUS_SYSTEM, &error);

    if (bus == NULL)
    {
	    g_warning ("dbus_bus_get(): %s", error.message);
	    dbus_error_free (&error);

	    return -1;
    }

    dbus_connection_setup_with_g_main (bus, NULL);

    dbus_bus_request_name (bus, DBUS_SERVICE_AVAHI, 0, &error);

    if (dbus_error_is_set (&error))
    {
	    g_warning ("dbus_bus_request_name (): %s", error.message);
	    dbus_error_free (&error);

	    return -1;
    }

    dbus_connection_add_filter (bus, signal_filter, loop, NULL);
    dbus_bus_add_match (bus,
		    "type='method_call',interface='org.freedesktop.Avahi'",
		    &error);

    if (dbus_error_is_set (&error))
    {
	    g_warning ("dbus_bus_add_match (): %s", error.message);
	    dbus_error_free (&error);

	    return -1;
    }

    g_main_loop_run(loop);
    g_main_loop_unref(loop);
    
    return 0;
}