/*
 * zavai-calendar - simple calendar tool
 *
 * Copyright (C) 2009  Enrico Zini <enrico@enricozini.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

using GLib;

//string VERSION = "0.1";

static Posix.pid_t is_running()
{
	string pidfile = zavai.config.homedir + "/calendar.pid";
	string contents;
	try {
		if (!FileUtils.get_contents(pidfile, out contents))
			return 0;
	} catch (FileError e) {
		return 0;
	}
	int val = contents.to_int();
	string procdir = "/proc/%d".printf(val);
	if (FileUtils.test(procdir, FileTest.IS_DIR))
		return (Posix.pid_t)val;
	else
		return 0;
}

static void make_pidfile()
{
	string pidfile = zavai.config.homedir + "/calendar.pid";
	FileUtils.set_contents(pidfile, "%d".printf(Posix.getpid()));
}

static void on_kill(int sig)
{
	Gtk.main_quit();
}

static int main (string[] args) {
	bool opt_popup = false;
	GLib.OptionEntry[] entries = new GLib.OptionEntry[] {
		OptionEntry() {
			long_name = "popup",
			short_name = 'p',
			flags = 0,
			arg = OptionArg.NONE,
			arg_data = &opt_popup,
			description = "run as a popup at the specified location on screen",
			arg_description = null },
		OptionEntry()
	};
        Gtk.init_with_args(ref args, "", entries, null);

	// parser = Parser(usage="usage: %prog [options]",
	//                 version="%prog "+ VERSION,
	//                 description="Simple interactive interface for the OpenMoko")
	// parser.add_option("-v", "--verbose", action="store_true", help="verbose mode")
	// 
	// (opts, args) = parser.parse_args()
	// 
	// if not opts.verbose:
	//     zavai.set_quiet()
	// 
	// # Read configuration
	// zavai.info("Loading configuration")
	// conf = zavai.Config()

	// Set up zavai

	// Core infrastructure
	zavai.config = new zavai.Config();

	// User interface
	var calendar = new zavai.widgets.Calendar();

	Gtk.Window win = new Gtk.Window(Gtk.WindowType.TOPLEVEL);
	if (opt_popup)
	{
		Posix.pid_t pid = is_running();
		if (pid != 0)
		{
			// Kill a running calendar
			Posix.kill(pid, Posix.SIGINT);
			FileUtils.unlink(zavai.config.homedir + "/calendar.pid");
			return 0;
		}

		make_pidfile();

		win.set_decorated(false);
		//win.set_resizable(false);
		win.set_border_width(5);
		win.set_skip_taskbar_hint(true);
		win.set_skip_pager_hint(true);
		//    gtk_window_set_type_hint(GTK_WINDOW(win), GDK_WINDOW_TYPE_HINT_DOCK);
		win.set_position(Gtk.WindowPosition.MOUSE);
		win.stick();
	}

	win.title = "Zavai calendar";
	win.destroy += Gtk.main_quit;
	win.add(calendar);
	win.set_size_request(300, 500);
	win.show_all();
	win.show();

	// Shutdown the main loop on SIGINT
	Posix.signal(Posix.SIGINT, on_kill);
	Posix.signal(Posix.SIGTERM, on_kill);

	Gtk.main();

	calendar.flush();

	return 0;
}