/*
    * Copyright (C) 2007 Alf Mikula
    * 
    * This file is part of PromoteGo.
    *
    * PromoteGo is free software: you can redistribute it and/or modify
    * it under the terms of the GNU General Public License as published by
    * the Free Software Foundation, either version 3 of the License, or
    * (at your option) any later version.
   *
   * PromoteGo is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with PromoteGo.  If not, see <http://www.gnu.org/licenses/>.
   */
  package org.promotego.controllers;
  
  import java.util.Calendar;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.TimeZone;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.promotego.beans.Location;
  import org.promotego.beans.OfferedGame;
  import org.promotego.beans.UserHolder;
  import org.promotego.dao.interfaces.LocationDao;
  import org.promotego.dao.interfaces.OfferedGameDao;
  import org.promotego.editors.BeanIdEditor;
  import org.promotego.formbackingbeans.GameOfferBean;
  import org.promotego.helpers.DateHelper;
  import org.promotego.logic.storehours.NullStoreHours;
  import org.springframework.beans.factory.annotation.Required;
  import org.springframework.transaction.annotation.Transactional;
  import org.springframework.validation.BindException;
  import org.springframework.web.bind.ServletRequestDataBinder;
  import org.springframework.web.servlet.ModelAndView;
  import org.springframework.web.servlet.mvc.SimpleFormController;
  
  public class OfferGameController extends SimpleFormController
  {
      private OfferedGameDao m_offeredGameDao;
      private LocationDao m_locationDao;
      private UserHolder m_userHolder;
      
      @Transactional
      @Override
      public ModelAndView onSubmit(Object command)
      {
          GameOfferBean gameOfferBean = (GameOfferBean)command;
          
          assert m_userHolder.getUser() != null : "User object may not be null";
          
          OfferedGame offeredGame = new OfferedGame();
          
          offeredGame.setDuration(gameOfferBean.getDuration());
          offeredGame.setLocation(gameOfferBean.getLocation());
          offeredGame.setOfferer(m_userHolder.getUser());
          
          offeredGame.setStartTime(gameOfferBean.getStartTime());
          
          m_offeredGameDao.create(offeredGame);
          
          Map<String,Object> model = new HashMap<String, Object>();
          
          model.put("offeredGame", offeredGame);
          
          return new ModelAndView(getSuccessView(), model);
      }
  
  	@SuppressWarnings("unchecked")
      @Override
      protected ModelAndView showForm(HttpServletRequest request, HttpServletResponse response, BindException errors, Map controlModel) throws Exception
      {
          Map<String,Object> myControlModel = new HashMap<String, Object>();
          
          if (controlModel != null)
          {
              myControlModel.putAll(controlModel);
          }
          
          myControlModel.put("durations", DateHelper.getDurations());
          myControlModel.put("years", DateHelper.getYears());
          myControlModel.put("months", DateHelper.getMonths());
          myControlModel.put("days", DateHelper.getDays());
          myControlModel.put("hours", DateHelper.getHours());
          myControlModel.put("minutes", DateHelper.getMinutes());
          myControlModel.put("ampm", DateHelper.getAmpm());
          
          return super.showForm(request, response, errors, myControlModel);
      }
  
      /***
       * Generate the GameOfferBean and populate it with the location, if
      * locationId is present.
      * 
      * TODO determine how to use binding and custom property editor to set the location.
      */
     @SuppressWarnings("unchecked")
     @Override
     protected Object formBackingObject(HttpServletRequest request) throws Exception
     {
         GameOfferBean gameOfferBean = new GameOfferBean();
         
         String locationIdString = request.getParameter("locationId");
         
         if (locationIdString != null)
         {
             // Populate the offeredGame's location, if locationId was provided.
             Location location = m_locationDao.getById(Long.parseLong(locationIdString));
             gameOfferBean.setLocation(location);
             if (location.getStoreHours() instanceof NullStoreHours)
             {
                 gameOfferBean.setHoursValid(false);
             }
             else
             {
                 gameOfferBean.setHoursValid(true);
             }
         }
         
         // TODO use the location's time zone
         Calendar theCalendar = Calendar.getInstance(TimeZone.getTimeZone("America/Los_Angeles"));
         
         // Calculate how many minutes to roll to the next 15-minute increment
         int minutesUp = theCalendar.get(Calendar.MINUTE)%15;
         minutesUp = minutesUp==0?0:15-minutesUp;
         
         // Move the minutes forward to the next 15-minute interval
         theCalendar.add(Calendar.MINUTE, minutesUp);
         
         // Move forward one day
         theCalendar.add(Calendar.DAY_OF_MONTH, 1);
         
         // Initialize start time on the form bean
         gameOfferBean.setStartTime(theCalendar);
         
         return gameOfferBean;
     }
 
     @Override
     protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) throws Exception
     {
         binder.registerCustomEditor(Location.class, new BeanIdEditor<Location>(m_locationDao));
 
         super.initBinder(request, binder);
     }
 
     @Required
     public void setUserHolder(UserHolder theUserHolder)
     {
         m_userHolder = theUserHolder;
     }
 
     @Required
     public void setOfferedGameDao(OfferedGameDao offeredGameDao)
     {
         m_offeredGameDao = offeredGameDao;
     }
 
     @Required
     public void setLocationDao(LocationDao locationDao)
     {
         m_locationDao = locationDao;
     }
 }