/*

  * Copyright (c) 2003-2011, Simon Brown

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions are met:

  *

  *   - Redistributions of source code must retain the above copyright

  *     notice, this list of conditions and the following disclaimer.

  *

  *   - Redistributions in binary form must reproduce the above copyright

  *     notice, this list of conditions and the following disclaimer in

  *     the documentation and/or other materials provided with the

  *     distribution.

  *

  *   - Neither the name of Pebble nor the names of its contributors may

  *     be used to endorse or promote products derived from this software

  *     without specific prior written permission.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

  * POSSIBILITY OF SUCH DAMAGE.

  */

 package net.sourceforge.pebble.web.action;

 import net.sourceforge.pebble.Constants;

 import net.sourceforge.pebble.util.SecurityUtils;

 import net.sourceforge.pebble.domain.*;

 import net.sourceforge.pebble.web.view.View;

 import net.sourceforge.pebble.web.view.impl.BlogEntriesByDayView;

 import javax.servlet.ServletException;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import java.util.List;

 import java.util.ArrayList;

 /**

  * Finds all blog entries for a particular day, ready for them to be displayed.

  *

  * @author    Simon Brown

  */

 public class ViewDayAction extends Action {

   /**

    * Peforms the processing associated with this action.

    *

    * @param request  the HttpServletRequest instance

    * @param response the HttpServletResponse instance

    * @return the name of the next view

    */

   public View process(HttpServletRequest request, HttpServletResponse response) throws ServletException {

     Blog blog = (Blog)request.getAttribute(Constants.BLOG_KEY);

     String year = request.getParameter("year");

     String month = request.getParameter("month");

     String day = request.getParameter("day");

     Day daily;

     if (year != null && year.length() > 0 &&

         month != null && month.length() > 0 &&

         day != null && day.length() > 0) {

       daily = blog.getBlogForDay(Integer.parseInt(year), Integer.parseInt(month), Integer.parseInt(day));

     } else {

       daily = blog.getBlogForToday();

     }

     BlogService service = new BlogService();

     List<BlogEntry> blogEntries;

     try {

       blogEntries = service.getBlogEntries(blog, Integer.parseInt(year), Integer.parseInt(month), Integer.parseInt(day));

     } catch (BlogServiceException e) {

       throw new ServletException(e);

     }

     getModel().put(Constants.MONTHLY_BLOG, daily.getMonth());

     getModel().put(Constants.DAILY_BLOG, daily);

     getModel().put(Constants.BLOG_ENTRIES, filter(blog, blogEntries));

     getModel().put("displayMode", "day");

     // put the previous and next days in the model for navigation purposes

     Day firstDay = blog.getBlogForFirstMonth().getBlogForFirstDay();

     Day previousDay = daily.getPreviousDay();

     Day nextDay = daily.getNextDay();

     if (!previousDay.before(firstDay)) {

       getModel().put("previousDay", previousDay);

     }

     if (!nextDay.getDate().after(blog.getCalendar().getTime()) || nextDay.before(firstDay)) {

       getModel().put("nextDay", nextDay);

     }

     return new BlogEntriesByDayView();

   }

   private List<BlogEntry> filter(Blog blog, List<BlogEntry> blogEntries) {

     List<BlogEntry> filtered = new ArrayList<BlogEntry>();

     for (BlogEntry blogEntry : blogEntries) {

       if (

           blogEntry.isPublished() ||

           (

               (SecurityUtils.isUserAuthorisedForBlog(blog) && blogEntry.isUnpublished())

           )

          ) {

         filtered.add(blogEntry);

       }

     }

     return filtered;

   }

 }