package com.accenture.adf.businesstier.controller;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import com.accenture.adf.businesstier.entity.Event;
import com.accenture.adf.businesstier.entity.Visitor;
import com.accenture.adf.businesstier.service.EventFacade;
import com.accenture.adf.businesstier.service.EventServiceImpl;
import com.accenture.adf.businesstier.service.VisitorFacade;
import com.accenture.adf.businesstier.service.VisitorServiceImpl;
import com.accenture.adf.exceptions.FERSGenericException;

/**
 *	<br/>
 *	CLASS DESCRIPTION:  <br/>
 *	A controller class for receiving and handling all visitor related transactions from the
 *  User Interface including visitor account access, visitor account maintenance,
 *  and visitor event registration requests. <br/>
 *
 */

@Controller
public class VisitorController {

	private static Logger log = Logger.getLogger(VisitorController.class);

	/**
	 * <br/>
	 * METHOD DESCRIPTION: <br/>
	 * This method will receive request from Registration.jsp and directs to
	 * service class to register new Visitor into system
	 * by accepting details and persist into database <br/>
	 *
	 * @param request (type HttpServletRequest)
	 * @param response (type HttpServletResponse)
	 *
	 * @return ModelAndView
	 *
	 * @throws FERSGenericException
	 *
	 *
	 */


	@RequestMapping("/newVisitor")
	public ModelAndView newVisitor(HttpServletRequest request,
			HttpServletResponse response) throws Exception {
		if(request==null || response==null)
		{
			log.info("Request or Response failed for NEWVISITOR METHOD..");
			throw new FERSGenericException("Error in Transaction, Please re-Try. for more information check Logfile in C:\\FERSLOG folder", new NullPointerException());
		}
		String username=request.getParameter("USERNAME");
		String password=request.getParameter("PASSWORD");
		String firstname=request.getParameter("FIRSTNAME");
		String lastname=request.getParameter("LASTNAME");
		String email=request.getParameter("EMAIL");
		String phoneno=request.getParameter("PHONENO");
		String place=request.getParameter("PLACE");
		System.out.println("Parameter got successfully!!");
		log.info("creating new visitor with UserName :"+username);

		Visitor visitor=new Visitor();
		visitor.setUserName(username);
		visitor.setPassword(password);
		visitor.setFirstName(firstname);
		visitor.setLastName(lastname);
		visitor.setEmail(email);
		visitor.setPhoneNumber(phoneno);
		visitor.setAddress(place);

		VisitorFacade vServiceImpl=new VisitorServiceImpl();
		boolean insertStatus=vServiceImpl.createVisitor(visitor);
		System.out.println(" create visitor1 successfully!!");
		ModelAndView mv=new ModelAndView();
		if(insertStatus==true)
		{
		mv.addObject("REGISTRATIONSTATUSMESSAGE", "User Registered Succesfully !!!");
		log.info("Succesfully created visitor "+ username);
		System.out.println("visitor created successfully!");
		mv.setViewName("/index");

		}
		else
		{
		mv.addObject("REGISTRATIONSTATUSMESSAGE", "USERNAME already exists.. please register again with different USERNAME..");
		log.info("Username "+ username+" already exists and visitor creation failed..");
		mv.setViewName("/index");
		}
		return mv;
	}

	/**
	 * <br/>
	 * METHOD DESCRIPTION:<br/>
	 * The method is for authenticating visitor in the index.jsp page and redirects visitor to
	 * the homepage based on their credentials. if validation fails, redirects to index.jsp and
	 * error message is printed on page.<br/>
	 *
	 * @param request (type HttpServletRequest)
	 * @param response (type HttpServletResponse)
	 *
	 * @return ModelAndView
	 *
	 * @throws FERSGenericException
	 *
	 *
	 */

	@RequestMapping("/searchVisitor")
	public ModelAndView searchVisitor(HttpServletRequest request,
			HttpServletResponse response,HttpSession hs) throws Exception {
		if(request==null || response==null)
		{
			System.out.println("request not found");
			log.info("Request or Response failed for SEARCHVISITOR METHOD..");
			throw new FERSGenericException("Error in Transaction, Please re-Try. for more information check Logfile in C:\\FERSLOG folder", new NullPointerException());
		}
		System.out.println("get the parameters");
		String username=request.getParameter("USERNAME");
		String password=request.getParameter("PASSWORD");
		System.out.println("got username parameter successfully");
		hs=request.getSession();
		System.out.println("got session successfulyy");
		if(hs.isNew())
		{
			hs.setAttribute("USERNAME", username);
			hs.setAttribute("PASSWORD", password);
		}
	/*	else
	{			username=(String) hs.getAttribute("USERNAME");
			password=(String) hs.getAttribute("PASSWORD");
			}*/

		log.info("Logging into FERS using username :"+username+" and password :"+password);

		Visitor visitor=new Visitor();
		VisitorFacade vServiceImpl=new VisitorServiceImpl();
		visitor=vServiceImpl.searchVisitor(username, password);
		System.out.println("got username and password successfully");
		ModelAndView mv=new ModelAndView();

		if(visitor.getVisitorId() == 0)
		{
			mv.addObject("ERROR","Invalid Username / Password.");
             System.out.println("invalid username and password");
			mv.setViewName("/index");
			return mv;
		}
		else
		{
		System.out.println("visitor details retrieved successfully");
		log.info("Visitor details available for the username :"+username);

		List<Event> eventList=new ArrayList<Event>();
		EventFacade serviceImpl=new EventServiceImpl();
		eventList=serviceImpl.getAllEvents();
		System.out.println("got events successfully");
		log.info("All events listed for th visitor :"+eventList);

		List<Event> regList=new ArrayList<Event>();
		regList=vServiceImpl.showRegisteredEvents(visitor);

		log.info("All Registered events listed for the visitor :"+regList);

		HttpSession session=request.getSession();
		session.setAttribute("VISITOR", visitor);

		mv.addObject("visitor",visitor);
		mv.addObject("allEvents",eventList);
		mv.addObject("regEvents",regList);
		mv.setViewName("/visitormain");
		return mv;
		}
	}

	/**
	 * <br/>
	 * METHOD DESCRIPTION:<br/>
	 * The method is used to register a visitor for an event from visitormain.jsp and maintains the list
	 * of all the events visitor registered. if user status is already registered for an event, then displays
	 * error message in visitormain.jsp page.<br/>

	 *
	 * @param request (type HttpServletRequest)
	 * @param response (type HttpServletResponse)
	 *
	 * @return ModelAndView
	 *
	 * @throws FERSGenericException
	 *
	 */


	@RequestMapping("/eventreg.htm")
	public ModelAndView registerVisitor(HttpServletRequest request,
			HttpServletResponse response) throws Exception {
		System.out.println("registrion method entered");
		if(request==null || response==null)
		{
			System.out.println("request is null");
			log.info("Request or Response failed for REGISTERVISITOR METHOD..");
			throw new FERSGenericException("Error in Transaction, Please re-Try. for more information check Logfile in C:\\FERSLOG folder", new NullPointerException());

		}

		HttpSession session=request.getSession();
		Visitor visitor=(Visitor)session.getAttribute("VISITOR");
		int eventid=Integer.parseInt(request.getParameter("eventId"));

		log.info("Visitor registered for the event :"+eventid);

		ModelAndView mv=new ModelAndView();

		VisitorFacade vServiceImpl=new VisitorServiceImpl();
		EventFacade serviceImpl=new EventServiceImpl();
		System.out.println("go to check events of visitor");
		boolean regStatus=serviceImpl.checkEventsofVisitor(visitor, eventid);
		System.out.println("returned from checkEvents of visitor");

		log.info("Status of the visitor for the event :"+regStatus);

		if(regStatus==false)
		{
			System.out.println("user is not registerd!! new event for a visitor");
			vServiceImpl.RegisterVisitor(visitor, eventid);
			vServiceImpl.UpdateEvent(eventid);
			System.out.println("user registered for the event successfully");
		log.info("Visitor succesfully registed for event :"+eventid);
		}
		else
		{
			System.out.println("user is already registered!!");
			mv.addObject("RegError", "User already Registered for the EVENT !!");
		}

		List<Event> regList=new ArrayList<Event>();
		regList=vServiceImpl.showRegisteredEvents(visitor);

		List<Event> eventList=new ArrayList<Event>();

		eventList=serviceImpl.getAllEvents();


		mv.addObject("visitor",visitor);
		mv.addObject("allEvents",eventList);
		mv.addObject("regEvents",regList);
		mv.setViewName("/visitormain");
		return mv;

	}

	/**
	 * <br/>
	 * METHOD DESCRIPTION:<br/>
	 * The method will update account details of the visitor and logout the visitor
	 * and to force the visitor to re-login and confirm the updated account details
	 * and new password.<br/>
	 *
	 * @param request (type HttpServletRequest)
	 * @param response (type HttpServletResponse)
	 *
	 * @return ModelAndView
	 *
	 * @throws FERSGenericException
	 *
	 */

	@RequestMapping("/updatevisitor")
	public ModelAndView updateVisitor(HttpServletRequest request,
			HttpServletResponse response) throws Exception {

		if(request==null || response==null)
		{
			log.info("Request or Response failed for UPDATEVISITOR METHOD..");
			throw new FERSGenericException("Error in Transaction, Please re-Try. for more information check Logfile in C:\\FERSLOG folder", new NullPointerException());
		}

		HttpSession session=request.getSession();
		Visitor visitor=(Visitor)session.getAttribute("VISITOR");

		log.info("Updating visitor details with VisitorID :"+visitor.getVisitorId());

		String username=request.getParameter("username");
		String password=request.getParameter("password");
		String firstname=request.getParameter("firstname");
		String lastname=request.getParameter("lastname");
		String email=request.getParameter("email");
		String phoneno=request.getParameter("phoneno");
		String place=request.getParameter("address");

		visitor.setFirstName(firstname);
		visitor.setLastName(lastname);
		visitor.setUserName(username);
		visitor.setPassword(password);
		visitor.setEmail(email);
		visitor.setPhoneNumber(phoneno);
		visitor.setAddress(place);

		VisitorFacade vServiceImpl=new VisitorServiceImpl();
		int status=vServiceImpl.updateVisitorDetails(visitor);

		log.info("Number of Visitor records updated is :"+status);

		ModelAndView mv=new ModelAndView();

		if(status>0)
		{
			mv.addObject("status","success");
			mv.setViewName("/updatevisitor");
		}
		else
		{
			mv.addObject("updatestatus", "Error in updation.. Please Check fields and retry");
			mv.setViewName("/updatevisitor");
		}
		return mv;
	}

	/**
	 * <br/>
	 * METHOD DESCRIPTION: <br/>
	 * The method is to unregisters a visitor from an event within the visitormain.jsp
	 * page and the seats will be released. The visitormain.jsp page is then refreshed
	 * to confirm the updates. <br/>
	 *
	 * @param request (type HttpServletRequest)
	 * @param response (type HttpServletResponse)
	 *
	 * @return ModelAndView
	 *
	 * @throws FERSGenericException
	 *
	 */

	@RequestMapping("/eventunreg.htm")
	public ModelAndView unregisterEvent(HttpServletRequest request,
			HttpServletResponse response) throws Exception {

		if(request==null || response==null)
		{
			log.info("Request or Response failed for UNREGISTEREVENT METHOD..");
			throw new FERSGenericException("Error in Transaction, Please re-Try. for more information check Logfile in C:\\FERSLOG folder", new NullPointerException());
		}

		HttpSession session=request.getSession();
		Visitor visitor=(Visitor)session.getAttribute("VISITOR");
		int eventid=Integer.parseInt(request.getParameter("eventId"));

		log.info("Unregistering for the event :"+eventid);

		VisitorFacade vServiceImpl=new VisitorServiceImpl();
		vServiceImpl.unregisterEvent(visitor, eventid);



		List<Event> regList=new ArrayList<Event>();
		regList=vServiceImpl.showRegisteredEvents(visitor);

		List<Event> eventList=new ArrayList<Event>();
		EventFacade serviceImpl=new EventServiceImpl();

		serviceImpl.updateEventDeletions(eventid);

		log.info("Seats allocated for the event are released :"+eventid);

		eventList=serviceImpl.getAllEvents();



		ModelAndView mv=new ModelAndView();
		mv.addObject("visitor",visitor);
		mv.addObject("allEvents",eventList);
		mv.addObject("regEvents",regList);
		mv.setViewName("/visitormain");
		return mv;
	}


}