/*

  * 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.domain.Blog;

 import net.sourceforge.pebble.domain.Month;

 import net.sourceforge.pebble.logging.LogSummary;

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

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

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

 import javax.servlet.ServletException;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import java.text.SimpleDateFormat;

 import java.util.Calendar;

 import java.util.Locale;

 /**

  * Gets the contents of the specified log file.

  *

  * @author    Simon Brown

  */

 public class ViewLogSummaryAction extends SecureAction {

   /**

    * 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)getModel().get(Constants.BLOG_KEY);

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

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

     Calendar cal = blog.getCalendar();

     LogSummary logSummary;

     View view;

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

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

       int year = Integer.parseInt(yearAsStriing);

       int month = Integer.parseInt(monthAsString)-1;

       cal.set(Calendar.YEAR, year);

       cal.set(Calendar.MONTH, month);

       logSummary = blog.getLogger().getLogSummary(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH)+1);

       view = new LogSummaryByMonthView();

       registerObjectsForNavigation(blog, blog.getBlogForMonth(year, month+1));

     } else if (yearAsStriing != null && yearAsStriing.length() > 0) {

       cal.set(Calendar.YEAR, Integer.parseInt(yearAsStriing));

       logSummary = blog.getLogger().getLogSummary(cal.get(Calendar.YEAR));

       view = new LogSummaryByYearView();

     } else {

       // get the log for this monthAsString

       logSummary = blog.getLogger().getLogSummary(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH)+1);

       view = new LogSummaryByMonthView();

       registerObjectsForNavigation(blog, blog.getBlogForThisMonth());

     }

     SimpleDateFormat yearFormatter = new SimpleDateFormat("yyyy", Locale.ENGLISH);

     yearFormatter.setTimeZone(blog.getTimeZone());

     SimpleDateFormat monthFormatter = new SimpleDateFormat("MM", Locale.ENGLISH);

     monthFormatter.setTimeZone(blog.getTimeZone());

     SimpleDateFormat dayFormatter = new SimpleDateFormat("dd", Locale.ENGLISH);

     dayFormatter.setTimeZone(blog.getTimeZone());

     getModel().put("year", yearFormatter.format(logSummary.getDate()));

     getModel().put("month", monthFormatter.format(logSummary.getDate()));

     getModel().put("logAction", "viewLogSummary");

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

     return view;

   }

   private void registerObjectsForNavigation(Blog blog, Month month) {

     Month firstMonth = blog.getBlogForFirstMonth();

     Month previousMonth = month.getPreviousMonth();

     Month nextMonth = month.getNextMonth();

     if (!previousMonth.before(firstMonth)) {

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

     }

     if (!nextMonth.getDate().after(blog.getCalendar().getTime()) || nextMonth.before(firstMonth)) {

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

     }

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

   }

   /**

    * Gets a list of all roles that are allowed to access this action.

    *

    * @return  an array of Strings representing role names

    * @param request

    */

   public String[] getRoles(HttpServletRequest request) {

     return new String[]{Constants.BLOG_ADMIN_ROLE, Constants.BLOG_OWNER_ROLE, Constants.BLOG_PUBLISHER_ROLE, Constants.BLOG_CONTRIBUTOR_ROLE};

   }

 }