
/*
 * OSDNotify.vala
 *
 * Copyright 2012-18 Tony George <teejeetech@gmail.com>
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 *
 *
 */

using TeeJee.Logging;
using TeeJee.FileSystem;
using TeeJee.ProcessHelper;

// dep: notify-send
public class OSDNotify : GLib.Object {
	
	private static DateTime dt_last_notification = null;
	public const int NOTIFICATION_INTERVAL = 3;
	public static bool? supported;
	
	public static int notify_send (
		string title, string message, int durationMillis,
		string urgency = "low", // low, normal, critical
		string dialog_type = "info" //error, info, warning
		){ 

		/* Displays notification bubble on the desktop */
		if (supported == null){
			supported = is_supported();
		}

		if (supported != true){
			return 0;
		}
		
		int retVal = 0;

		switch (dialog_type){
			case "error":
			case "info":
			case "warning":
				//ok
				break;
			default:
				dialog_type = "info";
				break;
		}

		long seconds = 9999;
		if (dt_last_notification != null){
			DateTime dt_end = new DateTime.now_local();
			TimeSpan elapsed = dt_end.difference(dt_last_notification);
			seconds = (long)(elapsed * 1.0 / TimeSpan.SECOND);
		}

		if (seconds > NOTIFICATION_INTERVAL){
			string s = "notify-send -t %d -u %s -i %s \"%s\" \"%s\"".printf(durationMillis, urgency, "gtk-dialog-" + dialog_type, title, message);
			retVal = exec_sync (s, null, null);
			dt_last_notification = new DateTime.now_local();
		}

		return retVal;
	}

	public static bool is_supported(){
		string path = get_cmd_path ("notify-send");
		if ((path != null) && (path.length > 0)){
			return true;
		}
		else{
			return false;
		}
	}
}
