using System;

using System.Web.UI.WebControls;



namespace NOS.Registration

{

	public class AutoRegistrationPresenter

	{

		readonly ILogger _logger;

		readonly IRegistrationRepository _repository;

		readonly IAutoRegistrationView _view;



		public AutoRegistrationPresenter(IAutoRegistrationView view)

			: this(view, new RegistrationRepository(), new DefaultLogger())

		{

		}



		public AutoRegistrationPresenter(IAutoRegistrationView view, IRegistrationRepository repository, ILogger logger)

		{

			_view = view;

			_repository = repository;

			_logger = logger;



			view.UserCreated += View_UserCreated;

			view.ValidateInvoiceAddress += ValidateInvoiceAddress;

		}



		void View_UserCreated(object sender, EventArgs e)

		{

			if (!_view.AutoRegisterUser)

			{

				_logger.Info("User opted-out of auto registration", _view.UserName);

				return;

			}



			try

			{

				var user = new User(_view.UserName)

				           {

				           	Data =

				           		{

				           			Xing = _view.Xing,

				           			Twitter = _view.Twitter,

				           			Name = _view.Name,

				           			Blog = _view.Blog,

				           			Email = _view.Email,

				           			Picture = _view.Picture,

				           			Sponsoring = _view.Sponsoring,

				           			InvoiceAddress = _view.InvoiceAddress,

				           			RegisteredAt = DateTime.Now

				           		}

				           };



				_repository.Save(user);

				_logger.Info("Saved registration data", _view.UserName);

			}

			catch (Exception ex)

			{

				_logger.Error(String.Format("Saving registration data failed: {0}", ex), _view.UserName);

			}

		}



		void ValidateInvoiceAddress(object sender, ServerValidateEventArgs e)

		{

			if (!_view.AutoRegisterUser)

			{

				e.IsValid = true;

				return;

			}



			if (_view.Sponsoring > 0)

			{

				e.IsValid = _view.InvoiceAddress != null && _view.InvoiceAddress.Length > 0;

			}

		}

	}

}