/*
 * This program 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 of the License, or (at your option) version 3.
 *
 * This program 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 the program; if not, see <http://www.gnu.org/licenses/>  
 *
 *
 * Authors:
 *		Shreyas Srinivasan <sshreyas@novell.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include <glib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <Evolution.h>
#include <libnm_glib.h>
#include <e-shell-window.h>

static libnm_glib_ctx *nm_ctx = NULL;
static guint id = 0;

static void
e_shell_glib_network_monitor (libnm_glib_ctx *ctx, gpointer user_data)
{
	libnm_glib_state state;
	EShellLineStatus line_status;
	EShellWindow *window = E_SHELL_WINDOW (user_data);
	EShell *shell = e_shell_window_peek_shell (window);
	GNOME_Evolution_ShellState shell_state;

	g_return_if_fail (ctx != NULL);

	state = libnm_glib_get_network_state (ctx);
	line_status = e_shell_get_line_status (shell);

	if (line_status == E_SHELL_LINE_STATUS_ONLINE && state == LIBNM_NO_NETWORK_CONNECTION) {
		shell_state = GNOME_Evolution_FORCED_OFFLINE;
		e_shell_go_offline (shell, window, shell_state);
	} else if (line_status == E_SHELL_LINE_STATUS_FORCED_OFFLINE && state == LIBNM_ACTIVE_NETWORK_CONNECTION) {
		shell_state = GNOME_Evolution_USER_ONLINE;
		e_shell_go_online (shell, window, shell_state);
	}
}

gboolean e_shell_nm_glib_initialise (EShellWindow *window);
void e_shell_nm_glib_dispose (EShellWindow *window);

gboolean
e_shell_nm_glib_initialise (EShellWindow *window)
{
	if (!nm_ctx) {
		nm_ctx = libnm_glib_init ();
		if (!nm_ctx) {
			fprintf (stderr, "Could not initialize libnm.\n");
			return FALSE;
		}
	}

	id = libnm_glib_register_callback (nm_ctx, e_shell_glib_network_monitor, window, NULL);

	return TRUE;
}

void
e_shell_nm_glib_dispose (EShellWindow *window)
{
	if (id != 0 && nm_ctx != NULL) {
		libnm_glib_unregister_callback (nm_ctx, id);
		libnm_glib_shutdown (nm_ctx);
		nm_ctx = NULL;
		id = 0;
	}
}