using System;
using System.ServiceModel;
using Kreta.Resources;

namespace Kreta.Client
{
    public class ClientHelper
    {
        //TODO:Exceptionokat szétszedni
        public T CallService<TService, T>(Func<TService, T> action) where TService : ICommunicationObject, new()
        {
            T res;
            var client = default(TService);

            try
            {
                client = new TService();

                res = action(client);
                client.Close();
            }
            catch (TimeoutException ex)
            {
                throw new TimeoutException(ErrorResource.AzAdatokLekerdezesereTullepteAMegadottIdokeretet, ex);
            }
            catch (FaultException ex)
            {
                throw new Exception(ErrorResource.AKirBejelentkezesiAdatokNemMegfeleloekKerjukProbaljaMegismetelniABejelentkezest, ex);
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message, ex);
            }
            finally
            {
                CloseClientCommunication(client);
            }

            return res;
        }

        private void CloseClientCommunication<TService>(TService client) where TService : ICommunicationObject, new()
        {
            if (client.State == CommunicationState.Faulted)
            {
                client.Abort();

            }
            else if (client.State != CommunicationState.Closed)
            {
                client.Close();
            }
        }
    }
}