/**
    * This file Copyright (c) 2008-2011 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.module.rssaggregator.paragraphs;
  
  import info.magnolia.cms.core.Content;
  import info.magnolia.cms.core.search.Query;
  import info.magnolia.cms.core.search.QueryManager;
  import info.magnolia.cms.core.search.QueryResult;
  import info.magnolia.context.MgnlContext;
  import info.magnolia.module.data.DataConsts;
  import info.magnolia.module.templating.RenderableDefinition;
  import info.magnolia.module.templating.RenderingModel;
  
  import java.util.Collection;
  import java.util.Collections;
  import java.util.Comparator;
  import java.util.Set;
  import java.util.TreeSet;
  
  import javax.jcr.RepositoryException;
  
  import org.apache.commons.lang.StringUtils;
  
  /**
   * Model class for FeedList paragraph.
   * 
   * @author had
   */
  public class FeedListModel extends AbstractFeedModel {
      private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(FeedListModel.class);
  
      private String orderBy = ORDER_BY_PUBLICATION_DATE;
      private String sortDirection = SORT_DESCENDING;
  
      public FeedListModel(Content content, RenderableDefinition renderable, RenderingModel parent) {
          super(content, renderable, parent);
      }
  
      public Collection<Content> getFeeds() {
          QueryManager qm = MgnlContext.getQueryManager("data");
          try {
              String queryString = "/jcr:root"+this.getContent().getNodeData("link").getString() + "/data" + "/element(*, dataItemNode) order by @jcr:name ";
              log.debug(queryString);
              Query q = qm.createQuery(queryString, "xpath");
              QueryResult res = q.execute();
              // not sorting by jcr:name in the query until jsr-283 is implemented so do this manually
              Set<Content> results = new TreeSet<Content>(new Comparator<Content>() {
  
                  public int compare(Content o1, Content o2) {
                      return o1.getName().compareTo(o2.getName());
                  }});
              results.addAll(res.getContent("dataItemNode"));
              return results;
          } catch (RepositoryException e) {
              log.error(e.getLocalizedMessage(), e);
          }
          return null;
      }
  
      public Collection<Content> getItems(String singleFeedHandle) {
          QueryManager qm = MgnlContext.getQueryManager("data");
          try {
              String orderByNodeValue = this.getContent().getNodeData("orderBy").getString();
              String sortDirectionNodeValue = this.getContent().getNodeData("direction").getString();
  
              if(StringUtils.isEmpty(orderByNodeValue)){
                  orderByNodeValue = orderBy;
              }
 
             if(StringUtils.isEmpty(sortDirectionNodeValue)){
                 sortDirectionNodeValue = sortDirection;
             }
 
           //String queryString = "SELECT * FROM nt:base WHERE jcr:path LIKE '"+singleFeedHandle+"/%' ORDER BY pubDate asc";
           String queryString = "/jcr:root"+singleFeedHandle + "/* order by " + orderByNodeValue + " " + sortDirectionNodeValue;
           log.debug(queryString);
           Query q = qm.createQuery(queryString, "xpath");
           QueryResult res = q.execute();
           return res.getContent(DataConsts.MODULE_DATA_CONTENT_NODE_TYPE);
         } catch (RepositoryException e) {
             log.error(e.getLocalizedMessage(),e);
         }
         return Collections.EMPTY_LIST;
     }
 
     public String getOrderBy() {
         return this.orderBy;
     }
 
     public void setOrderBy(String orderBy) {
         if(orderBy.equals(ORDER_BY_PUBLICATION_DATE) || orderBy.equals(ORDER_BY_TITLE_NAME)){
             this.orderBy = orderBy;
         }
     }
 
     public String getSortDirection() {
         return this.sortDirection;
     }
 
     public void setSortDirection(String sortDirection) {
         if(sortDirection.equals(AbstractFeedModel.SORT_ASCENDING) || sortDirection.equals(AbstractFeedModel.SORT_DESCENDING)){
             this.sortDirection = sortDirection;
         }
     }
 }