//   SparkleShare, a collaboration and sharing tool.
//   Copyright (C) 2010  Hylke Bons <hylkebons@gmail.com>
//
//   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 3 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, see <http://www.gnu.org/licenses/>.


using System;
using System.IO;

namespace SparkleLib {

    public class SparkleWatcher : FileSystemWatcher {

        public event ChangeEventEventHandler ChangeEvent = delegate { };
        public delegate void ChangeEventEventHandler (FileSystemEventArgs args);

        private Object thread_lock = new Object ();


        public SparkleWatcher (string path) : base (path)
        {
            IncludeSubdirectories = true;
            EnableRaisingEvents   = true;
            Filter                = "*";

            Changed += OnChanged;
            Created += OnChanged;
            Deleted += OnChanged;
            Renamed += OnChanged;
        }


        private void OnChanged (object sender, FileSystemEventArgs args)
        {
            ChangeEvent (args);
        }


        public void Enable ()
        {
            lock (this.thread_lock)
                EnableRaisingEvents = true;
        }


        public void Disable ()
        {
            lock (this.thread_lock)
                EnableRaisingEvents = false;
        }
    }
}