using System;
using System.Runtime.Remoting;
using System.ServiceModel;
using System.Windows;
using Gui.MultiplayerService;
using Microsoft.Practices.EnterpriseLibrary.ExceptionHandling;

namespace Gui.Classes
{
    /// <summary>
    /// Clase Client. Se encarga de manejar la transferecia entre aplicaciones por LAN
    /// </summary>
    public class Client
    {

        private static Client _cliente;
        private static readonly Object Semaforo = new object();
        private readonly TransferServiceClient _clientServiceClient;
        private int _id = 1;

        /// <summary>
        /// Constructor de la clase Client
        /// </summary>
        protected Client()
        {
            _clientServiceClient = new TransferServiceClient("NetTcpBinding_ITransferService");
        }

        /// <summary>
        /// Gets the Client
        /// </summary>
        public TransferServiceClient ClientServiceClient
        {
            get { return _clientServiceClient; }
        }

        /// <summary>
        /// Gets the id of the client
        /// </summary>
        public int Id
        {
            get { return _id; }
            set { _id = value; }
        }

        /// <summary>
        /// Metodo que permite transferir datos al servidor
        /// </summary>
        /// <param name="tdata">Informacion a transferir</param>
        public void Transfer(TransferData tdata)
        {
            try
            {
                _clientServiceClient.SendDataClient(tdata);
            }
            catch (Exception ex)
            {
                //throw new ServerException("The Client had troubles connecting to the server", ex);
                if (ex is EndpointNotFoundException || ex is ServerException || ex is CommunicationObjectFaultedException || ex is CommunicationException)
                    ExceptionPolicy.HandleException(ex, "ServerException");
                else
                    ExceptionPolicy.HandleException(ex, "General");

            }
            finally
            {
                if (StringManager.Instance().CurrentLanguage == "english")
                    MessageBox.Show("The Client had problems connecting to the server, please contact your System Administrator", "Connetion Error", MessageBoxButton.OK,
                                    MessageBoxImage.Error);
                else
                {
                    MessageBox.Show("El cliente tuvo problemas al conectarse al servidor, por favor contacte al Administrador de su Sistema", "Error de Conexion", MessageBoxButton.OK,
                                                       MessageBoxImage.Error);
                }
            }
            /*
            if (_clientServiceClient.State == CommunicationState.Opened)
                _clientServiceClient.SendDataClient(tdata);
             * */
        }

        /// <summary>
        /// Metodo que permite recibir datos del servidor
        /// </summary>
        public TransferData Receive()
        {
            try
            {
                return _clientServiceClient.DownloadDataServer(_id);
            }
            catch (Exception ex)
            {
                //throw new ServerException("The Client had troubles connecting to the server", ex);
                if (ex is EndpointNotFoundException || ex is ServerException || ex is CommunicationObjectFaultedException || ex is CommunicationException)
                    ExceptionPolicy.HandleException(ex, "ServerException");
                else
                    ExceptionPolicy.HandleException(ex, "General");
            }
            finally
            {
                if (StringManager.Instance().CurrentLanguage == "english")
                    MessageBox.Show("The Client had problems connecting to the server, please contact your System Administrator", "Connetion Error", MessageBoxButton.OK,
                                    MessageBoxImage.Error);
                else
                    MessageBox.Show("El cliente tuvo problemas al conectarse al servidor, por favor contacte al Administrador de su Sistema", "Error de Conexion", MessageBoxButton.OK,
                                                       MessageBoxImage.Error);
            }
            return null;

            /*
            if (_clientServiceClient.State != CommunicationState.Closed || _clientServiceClient.State != CommunicationState.Closing)
                return _clientServiceClient.DownloadDataServer(_id);
            return null;
             * */
        }

        #region Singleton
        /// <summary>
        /// Metodo que sirve para llamar la clase Client desde un patron Singleton
        /// </summary>
        /// <returns></returns>
        public static Client Instance()
        {
            if (_cliente == null)
            {
                lock (Semaforo)
                {
                    if (_cliente == null)
                    {
                        _cliente = new Client();
                    }
                }
            }
            return _cliente;
        }

        #endregion



    }
}