//
// System.Security.Cryptography.CryptographicAttributeObjectCollection class
//
// Author:
//	Sebastien Pouliot  <sebastien@ximian.com>
//
// (C) 2003 Motus Technologies Inc. (http://www.motus.com)
// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

#if NET_2_0

using System.Collections;

namespace System.Security.Cryptography {

	public sealed class CryptographicAttributeObjectCollection : ICollection, IEnumerable {

		private ArrayList _list;

		public CryptographicAttributeObjectCollection () 
		{
			_list = new ArrayList ();
		}

		public CryptographicAttributeObjectCollection (CryptographicAttributeObject attribute)
			: this ()
		{
			_list.Add (attribute);
		}

		// properties

		public int Count {
			get { return _list.Count; }
		}

		public bool IsSynchronized {
			get { return _list.IsSynchronized; }
		}

		public CryptographicAttributeObject this [int index] {
			get { return (CryptographicAttributeObject) _list [index]; }
		}

		public object SyncRoot {
			get { return this; }
		}

		// methods

		public int Add (AsnEncodedData asnEncodedData)
		{
			if (asnEncodedData == null)
				throw new ArgumentNullException ("asnEncodedData");

			AsnEncodedDataCollection coll = new AsnEncodedDataCollection (asnEncodedData);
			return Add (new CryptographicAttributeObject (asnEncodedData.Oid, coll));
		}

		public int Add (CryptographicAttributeObject attribute)
		{
			if (attribute == null)
				throw new ArgumentNullException ("attribute");

			int existing = -1;
			string oid = attribute.Oid.Value;
			for (int i=0; i < _list.Count; i++) {
				if ((_list[i] as CryptographicAttributeObject).Oid.Value == oid) {
					existing = i;
					break;
				}
			}
			if (existing >= 0) {
				CryptographicAttributeObject cao = this[existing];
				foreach (AsnEncodedData value in attribute.Values) {
					cao.Values.Add (value);
				}
				return existing;
			} else {
				return _list.Add (attribute);
			}
		}

		public void CopyTo (CryptographicAttributeObject[] array, int index)
		{
			_list.CopyTo (array, index);
		}

		void ICollection.CopyTo (Array array, int index)
		{
			_list.CopyTo (array, index);
		}

		public CryptographicAttributeObjectEnumerator GetEnumerator () 
		{
			return new CryptographicAttributeObjectEnumerator (_list);
		}

		IEnumerator IEnumerable.GetEnumerator () 
		{
			return new CryptographicAttributeObjectEnumerator (_list);
		}

		public void Remove (CryptographicAttributeObject attribute) 
		{
			if (attribute == null)
				throw new ArgumentNullException ("attribute");

			_list.Remove (attribute);
		}
	}
}

#endif