package src;

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

import javax.ejb.EJB;
import javax.ejb.EJBs;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
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 beans.AdministracionBeanRemote;

import model.Asignatura;
import model.Concepto;
import model.Tema;

/**
 * Servlet implementation class CargarConceptosServlet
 */
@WebServlet("/CargarConceptosServlet") 
public class CargarConceptosServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
	@PersistenceContext
    EntityManager em;
	
	@EJB
    AdministracionBeanRemote abr;
	
    /**
     * @see HttpServlet#HttpServlet()
     */
    public CargarConceptosServlet() {
        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");
		PrintWriter out = response.getWriter();
        //int idTema = Integer.valueOf(request.getParameter("tema_id"));
        
		String idAsignatura = request.getParameter("asignatura");
		Asignatura asignatura = em.find(Asignatura.class, Integer.valueOf(idAsignatura));
		
		List<Tema> temaList = em.createQuery("Select e from Tema e where e.asignatura = :asignatura")
				.setParameter("asignatura", asignatura).getResultList(); 
		//no borrar
		System.out.println(temaList.toString());
		
		try {
		for (Tema tema : temaList){
			//System.out.println(tema.getConceptoList().toString());
			out.printf("<optgroup label='%1s'>", tema.getNombre());
			System.out.println("<optgroup label='%1s'>");
	            for (Concepto concepto : tema.getConceptoList()) {
	                out.printf("<option value='%1s'>%2s</option>", concepto.getIdConcepto(), concepto.getNombre());
	                System.out.println("<option value='%1s'>%2s</option>");
	            }
	        
	        out.printf("</optgroup>");
	        System.out.println("</optgroup>");
			
		}	
		} finally {
            out.close();
        }
        
        
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		System.out.println("doPost");
		doGet(request, response);
	}

}