#region License

// The MIT License
//
// Copyright (c) 2006-2008 DevDefined Limited.
// 
// 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.

#endregion

using System.Collections.Generic;
using DevDefined.OAuth.Framework;
using DevDefined.OAuth.Storage;

namespace DevDefined.OAuth.Testing
{
	/// <summary>
	/// A simple nonce store that just tracks all nonces by consumer key in memory.
	/// </summary>
	public class TestNonceStore : INonceStore
	{
		readonly Dictionary<string, List<string>> _nonces = new Dictionary<string, List<string>>();

		public bool RecordNonceAndCheckIsUnique(IConsumer consumer, string nonce)
		{
			List<string> list = GetNonceListForConsumer(consumer.ConsumerKey);
			lock (list)
			{
				if (list.Contains(nonce)) return false;
				list.Add(nonce);
				return true;
			}
		}

		List<string> GetNonceListForConsumer(string consumerKey)
		{
			var list = new List<string>();

			if (!_nonces.TryGetValue(consumerKey, out list))
			{
				lock (_nonces)
				{
					if (!_nonces.TryGetValue(consumerKey, out list))
					{
						list = new List<string>();
						_nonces[consumerKey] = list;
					}
				}
			}

			return list;
		}
	}
}