package com.eassessment.controller;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.eassessment.model.AdminDao;
import com.eassessment.pojo.User;
import com.eassessment.util.Constants;
import com.eassessment.util.Email;
import com.eassessment.util.StringUtil;

/**
 * Servlet implementation class Login
 */
public class Login extends HttpServlet {
	private static final long serialVersionUID = 1L;

	/**
	 * @see HttpServlet#HttpServlet()
	 */
	public Login() {
		super();
		// TODO Auto-generated constructor stub
	}

	/**
	 * @see Servlet#init(ServletConfig)
	 */
	public void init(ServletConfig config) throws ServletException {
		// TODO Auto-generated method stub
	}

	/**
	 * @see HttpServlet#service(HttpServletRequest request, HttpServletResponse
	 *      response)
	 */
	protected void service(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
	  
		String user = request.getParameter("user");
		String pass = request.getParameter("pass");
		User userObj = AdminDao.getInstance().isValidUser(user, pass);
		if (userObj != null) {
			HttpSession session = request.getSession(true);
			session.setAttribute("loggeduser", userObj.getUsername());
			session.setAttribute("role", userObj.getRole());
			session.setAttribute("userid", userObj.getId());
			session.setMaxInactiveInterval(20 * 60);

			if (userObj.getRole().equals(Constants.ROLE_ADMIN)) {
				// Login for Admin
				RequestDispatcher rd = request
						.getRequestDispatcher("AdminHome.jsp");
				rd.forward(request, response);
			} else {
				// Login for Student
				RequestDispatcher rd = request
						.getRequestDispatcher("StudentHome.jsp");
				rd.forward(request, response);
			}

		} else {
			request.setAttribute("message",
					StringUtil.setErrorMessage("Error : Login failed"));
			RequestDispatcher rd = request.getRequestDispatcher("Login.jsp");
			rd.forward(request, response);
		}

	}

}