package src;

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

import javax.ejb.EJB;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
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 model.Asignatura;
import model.Profesor;
import beans.SimulacionBeanRemote;

/**
 * Servlet implementation class MenuPrincipalServlet
 */
@WebServlet(name = "MenuPrincipalServlet", urlPatterns = "")
public class MenuPrincipalServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
    @PersistenceContext 
    EntityManager em;
    /**
     * @see HttpServlet#HttpServlet()
     */
	@EJB
	SimulacionBeanRemote simular;
	
    public MenuPrincipalServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
			
		response.setContentType("text/html;charset=UTF-8"); 
		Profesor profesor = (Profesor)request.getSession().getAttribute("profesor");
		Profesor profTemp = em.find(Profesor.class, profesor.getIdProfesor());
		simular.simular();
		List<Asignatura> asignaturas = em.createQuery("select a from Asignatura a where a.profesor = :profesor ").setParameter("profesor", profTemp).getResultList();
		request.setAttribute("lista_asignatura", asignaturas);
		
		
        RequestDispatcher rd = getServletContext().getRequestDispatcher("/menu_principal.jsp");    
        rd.forward(request, response);
	}

}