package controller;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import domain.Person;
import domain.PersonRepository;

/**
 * Servlet implementation class controller
 */
@WebServlet("/Controller")
public class Controller extends HttpServlet {
	private static final long serialVersionUID = 1L;
    private PersonRepository service = new PersonRepository();
    private ControllerFactory controllerFactory = new ControllerFactory(service);
    /**
     * @see HttpServlet#HttpServlet()
     */

    public Controller() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		processRequest(request,response);
	}


	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		processRequest(request,response);
	}

	private void processRequest(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		/**String action = request.getParameter("action");
		String destination = "index.jsp";
		if(action.equals("Login")){
			destination = login(request,response);
		}
		if(action.equals("Logout")){
			destination = logout(request,response);
		}
		request.setAttribute("action", action);
		RequestDispatcher view = request.getRequestDispatcher(destination);
		view.forward(request, response);**/
                String destination = "";
		try{
			String action = request.getParameter("action");
			RequestHandler handler = controllerFactory.getController(action);
			destination = handler.handleRequest(request,response);
			if(!destination.equals("")){
                            RequestDispatcher view = request.getRequestDispatcher(destination);
                            view.forward(request, response);
                        }

		}catch(Exception e){
			throw new ServletException(e.getMessage(),e);
		}

	}

	/**private String logout(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.getSession().invalidate();
		return "index.jsp";
	}

	private String login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		String nickname = request.getParameter("nickname");
		String password = request.getParameter("password");
		System.out.println("in function login");
		try {
			Person user = service.getUserIfAuthenticated(nickname, password);
			request.getSession().setAttribute("name", user);
			response.sendRedirect("index.jsp");
		} catch (Exception exc){
			System.out.println("in catch");
			List<String> errors = new ArrayList<String>();
			errors.add("Invalid email or password");
			request.setAttribute("errors", errors);
		}
		return "index.jsp";

	}**/

}