/*
 * Filters/FilterRequest.cs
 *
 * Author(s)
 *   Stephane Delcroix <stephane@delcroix.org>
 *
 * This is free software. See COPYING for details
 *
 */

using System;

namespace FSpot.Filters {

	public class FilterRequest : IDisposable
	{
		Uri source;
		Uri current;
		Uri next;

		public FilterRequest (Uri source)
		{
			this.source = source;
			this.current = source;
		}

		public Uri Source {
			get { return source; }
		}

		public Uri Current {
			get { return current; }
			set { current = value; }
		}

		public Uri Next {
			get {
				if (next == null)
					next = new Uri ("file://" + System.IO.Path.GetTempFileName ());
				return next; 
			}
		}

		public Uri Destination {
			get { return current; }
		}

		public void Step ()
		{
			//FIXME Add the old current to a removeMe list
			current = next;
			next = null;
		}

		public void Dispose ()
		{
			//clean the old temp files
		}
	}
}