//-----------------------------------------------------------------------
// <copyright file="InMemoryTokenManager.cs" company="Andrew Arnott">
//     Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------

using System;
using System.Collections.Generic;
using System.Diagnostics;
using DotNetOAuth.ChannelElements;
using DotNetOAuth.Messages;

public class InMemoryTokenManager : ITokenManager {
	private Dictionary<string, string> tokensAndSecrets = new Dictionary<string, string>();

	public InMemoryTokenManager(string consumerKey, string consumerSecret) {
		this.ConsumerKey = consumerKey;
		this.ConsumerSecret = consumerSecret;
	}

	public string ConsumerKey { get; private set; }

	public string ConsumerSecret { get; private set; }

	#region ITokenManager Members

	public string GetConsumerSecret(string consumerKey) {
		if (consumerKey == this.ConsumerKey) {
			return this.ConsumerSecret;
		} else {
			throw new ArgumentException("Unrecognized consumer key.", "consumerKey");
		}
	}

	public string GetTokenSecret(string token) {
		return this.tokensAndSecrets[token];
	}

	public void StoreNewRequestToken(RequestTokenMessage request, UnauthorizedRequestTokenMessage response) {
		this.tokensAndSecrets[response.RequestToken] = response.TokenSecret;
	}

	/// <summary>
	/// Checks whether a given request token has already been authorized
	/// by some user for use by the Consumer that requested it.
	/// </summary>
	/// <param name="requestToken">The Consumer's request token.</param>
	/// <returns>
	/// True if the request token has already been fully authorized by the user
	/// who owns the relevant protected resources.  False if the token has not yet
	/// been authorized, has expired or does not exist.
	/// </returns>
	public bool IsRequestTokenAuthorized(string requestToken) {
		throw new NotImplementedException();
	}

	public void ExpireRequestTokenAndStoreNewAccessToken(string consumerKey, string requestToken, string accessToken, string accessTokenSecret) {
		this.tokensAndSecrets.Remove(requestToken);
		this.tokensAndSecrets[accessToken] = accessTokenSecret;
	}

	/// <summary>
	/// Classifies a token as a request token or an access token.
	/// </summary>
	/// <param name="token">The token to classify.</param>
	/// <returns>Request or Access token, or invalid if the token is not recognized.</returns>
	public TokenType GetTokenType(string token) {
		throw new NotImplementedException();
	}

	#endregion
}