package com.eassessment.controller;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.servlet.RequestDispatcher;
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.model.AssessmentModel;
import com.eassessment.model.CoordinateDao;
import com.eassessment.pojo.AnswerSet;
import com.eassessment.pojo.Options;
import com.eassessment.pojo.TestSet;
import com.eassessment.pojo.User;
import com.eassessment.util.Constants;
import com.eassessment.util.Email;
import com.eassessment.util.StringUtil;
import com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException;
import com.sun.java.swing.plaf.windows.WindowsInternalFrameTitlePane.ScalableIconUIResource;

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

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

	/**
	 * @see HttpServlet#service(HttpServletRequest request, HttpServletResponse
	 *      response)
	 */
	protected void service(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {

		String actionbutton=request.getParameter("btnaction");
		int currentq = Integer.parseInt(request.getParameter("currentq"));
		Map<Integer, TestSet> qmap = (Map<Integer, TestSet>) request
				.getSession().getAttribute("questionset");
		Map<Integer, AnswerSet> ansmap = (Map<Integer, AnswerSet>) request
				.getSession().getAttribute("answerset");

		if(actionbutton.equals("Next")){
			int optno = Integer.parseInt(request.getParameter("opt_no"));
			TestSet testset = qmap.get(currentq);
			AnswerSet ansset = new AnswerSet();
			ansset.setTopic_id(testset.getTopic_id());
			ansset.setQues_id(testset.getQues_id());
			ansset.setOption(testset.getOptionList().get(optno));
			ansmap.put(currentq, ansset);
			//qmap.remove(currentq);
		}else if(actionbutton.equals("Prev")){
			currentq = currentq>1?currentq-1:currentq;
			System.out.println("-----="+qmap.get(currentq));
			request.setAttribute("testsetObj", qmap.get(currentq));
			request.setAttribute("currentq", currentq);

			HttpSession session = request.getSession();
			session.setAttribute("questionset", qmap);
			session.setAttribute("answerset", ansmap);
			RequestDispatcher rd = request
					.getRequestDispatcher("AssessmentTest.jsp");
			rd.forward(request, response);
			return;
		}
				
		/*
		 * For Demo
		 */

		//System.out.println("===== demo ====");
		if (currentq == 5 && StringUtil.getEmptyString(request
				.getSession().getAttribute("testtype").toString()).equals(Constants.TEST_DEMO)) {			 
			finishTest(request,response,ansmap);
			return;
		}
		 
		if (currentq < Integer.parseInt(request.getSession()
				.getAttribute("totalq").toString())
				&& qmap.containsKey(currentq + 1)) {
			currentq += 1;
			request.setAttribute("testsetObj", qmap.get(currentq));
			request.setAttribute("currentq", currentq);

			HttpSession session = request.getSession();
			session.setAttribute("questionset", qmap);
			session.setAttribute("answerset", ansmap);
			RequestDispatcher rd = request
					.getRequestDispatcher("AssessmentTest.jsp");
			rd.forward(request, response);
		} else {
			//System.out.println("===== no question====");
			finishTest(request,response,ansmap);
		}
 
	}
	
	void finishTest(HttpServletRequest request,
			HttpServletResponse response, Map<Integer, AnswerSet> ansmap ) throws ServletException, IOException{
		try {
			String testType = StringUtil.getEmptyString(request
					.getSession().getAttribute("testtype").toString());
			String responseString = CoordinateDao.getInstance()
					.saveAllAnswers(
							ansmap,
							request.getSession().getAttribute("userid")
									.toString(), testType);
			System.out.println("responseString:" + responseString);
			if (responseString.equals(Constants.OK)) {
				request.setAttribute(
						"message",
						StringUtil
								.setSuccessMessage("Congratulations! Test completed successfully."));
				// send alert to anand 
				if(!testType.equals(Constants.TEST_DEMO)){
				try {
					
					StringBuilder sb = new StringBuilder();
					User user=AdminDao.getInstance().getUser(request.getSession().getAttribute("userid").toString());
					sb.append("Following user has been completed the TEST\n" +
							"<br/>User Id:"+user.getId()+
							"<br/>Username:"+user.getUsername()+
							"<br/>Name:"+ user.getName()+
							"<br/>Email: "+user.getEmail());
					 
						System.out.println("EMAIL::"+user.getUsername()+"\t"+Email.SendMailTLS(user.getEmail(), sb, user.getName().concat(" has been completed the TEST")));
					 	
					 
				} catch (Exception e) {
					e.printStackTrace();
				}
				}
				
				
			} else {
				System.err.println("TestFinishError:"
						+ request.getSession().getAttribute("userid")
								.toString() + "::" + responseString);
				request.setAttribute("message", StringUtil
						.setErrorMessage("There are something goes wrong..."
								+ responseString));
			}

			RequestDispatcher rd = request
					.getRequestDispatcher("ReferFriend.jsp");
			rd.forward(request, response);
		} catch (MySQLIntegrityConstraintViolationException e) {

			e.printStackTrace();
		}
	}

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
	 *      response)
	 */
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
	 *      response)
	 */
	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}

}