using System.ServiceModel;
using NJDOTNET.Trivia;

namespace NJDOTNET.Trivia.ServiceClient
{
    /// <summary>
    /// The IGameServer proxy implementation used to communicate with 
    /// WCF Trivia Services.
    /// </summary>
    public class WcfGameServerProxy : IGameServer
    {
        // The instance of our WCF service client
        private readonly TriviaService.GameServerClient _client;

        // The current game client for this instance
        public IGameClient GameClient { get; protected set; }

        #region Constructors

        public WcfGameServerProxy() : this(new SimpleGameClient())
        {
        }
        public WcfGameServerProxy(IGameClient gameClient)
        {
            GameClient = gameClient;
            _client = getServiceClient(GameClient);
        }

        #endregion

        public void NewGame()
        {
            _client.NewGame();
        }

        public void Start()
        {
            _client.Start();
        }

        public void RegisterPlayer(Player player)
        {
            _client.RegisterPlayer(player);
        }

        public Question GetCurrentQuestion()
        {
            // TODO: Implement GetCurrentQuestion()
            throw new System.NotImplementedException();
        }

        public AnswerSubmissionResponse SubmitAnswer(Answer answer)
        {
            // TODO: Implement SubmitAnswer(Answer answer)
            throw new System.NotImplementedException();
        }

        internal virtual TriviaService.GameServerClient getServiceClient(IGameClient gameClient)
        {
            RemoteGameClient client;
            if (gameClient is RemoteGameClient)
                client = gameClient as RemoteGameClient;
            else
                client = new RemoteGameClient(gameClient);

            var context = new InstanceContext(client);
            return new TriviaService.GameServerClient(context);
        }
    }
}