/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package com.egym;

import Stores.QuizStore;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.CallableStatement;
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 java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.RequestDispatcher;
/**
 *
 * @author Dreads
 */
@WebServlet(name = "GetQuizzes", urlPatterns = {"/GetQuizzes"})
public class GetQuizzes extends HttpServlet {
    Connection con = null;
    Statement st = null;
    ResultSet rs = null;
    static final String JDBC_DRIVER ="com.mysql.jdbc.Driver";  
    String url = "jdbc:mysql://46.101.32.81:3306/EGAlexander";
    String user = "root";
    String password = "teameight";
    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet GetQuizzes</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet GetQuizzes at " + request.getContextPath() + "</h1>");
            out.println("</body>");
            out.println("</html>");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try{
            Object testComplete = request.getAttribute("TestCompleted");
            int tstComplete = 0;
            if(testComplete != null)
            {
                tstComplete = (int) request.getAttribute("TestCompleted");
            }
            Class.forName("com.mysql.jdbc.Driver").newInstance();
            /* TODO output your page here. You may use following sample code. */
            con = DriverManager.getConnection(url, user, password);
            CallableStatement cs = null;
            cs = this.con.prepareCall("{call get_quizzes}"); 
            ResultSet rs = cs.executeQuery(); 
            LinkedList<QuizStore> quizList = new LinkedList<QuizStore>();
            while (rs.next()) 
            {
                int idQuiz = rs.getInt("idQuiz");
                String Name = rs.getString("Name");
                int Points = rs.getInt("Points");
                String LearningMaterials = rs.getString("LearningMaterial");
                QuizStore quizStore = new QuizStore(idQuiz, Name, Points, LearningMaterials);
                quizList.add(quizStore);
            }
            request.setAttribute("QuizList", quizList);
            if(testComplete != null)
            {
                request.setAttribute("TestCompleted", tstComplete);
            }
            cs.close();
            
            con.close();
            RequestDispatcher rd = request.getRequestDispatcher("/Quizzes.jsp");
            rd.forward(request,response);
        } catch (SQLException | ClassNotFoundException | InstantiationException | IllegalAccessException ex) {
            Logger.getLogger(GetQuizzes.class.getName()).log(Level.SEVERE, null, ex);
        }   
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}