/**
    * This file Copyright (c) 2008-2012 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.templates.components;
  
  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.cms.util.ContentWrapper;
  import info.magnolia.cms.util.NodeMapWrapper;
  import info.magnolia.context.MgnlContext;
  import info.magnolia.jcr.util.PropertyUtil;
  import info.magnolia.module.data.DataConsts;
  import info.magnolia.rendering.model.RenderingModel;
  import info.magnolia.rendering.template.TemplateDefinition;
  import info.magnolia.templating.functions.TemplatingFunctions;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  
  import javax.inject.Inject;
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  
  import org.apache.commons.lang.StringUtils;
  
  /**
   * Model class for combinedFeedParagraph.
   *
   * @author had
   * @param <RD>
   */
  public class CombinedFeedModel <RD extends TemplateDefinition> extends AbstractFeedModel<TemplateDefinition> {
  
      private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(CombinedFeedModel.class);
  
      protected String orderBy = ORDER_BY_PUBLICATION_DATE;
      protected String sortDirection = SORT_DESCENDING;
  
      @Inject
      public CombinedFeedModel(Node content, RD definition, RenderingModel<?> parent, TemplatingFunctions templatingFunctions) {
          super(content, definition, parent,templatingFunctions);
      }
  
      @Override
      public String execute() {
          log.debug("Executing " + this.getClass().getName());
          return "success";
      }
  
      /**
       * .
       * FIXME: Remove the old QueryManager and use the JCR API.
       * @return
       */
      public Collection<ContentWrapper> getItems() {
          List<ContentWrapper> results = new ArrayList<ContentWrapper>();
          try {
              QueryManager qm = MgnlContext.getQueryManager("data");
  
              String orderByNodeValue = PropertyUtil.getString(content, "orderBy");
              String sortDirectionNodeValue = PropertyUtil.getString(content, "direction");
              String link = PropertyUtil.getString(content, "link");
  
  
              if(StringUtils.isEmpty(orderByNodeValue)){
                  orderByNodeValue = orderBy;
             }
 
             if(StringUtils.isEmpty(sortDirectionNodeValue)){
                 sortDirectionNodeValue = sortDirection;
             }
 
             String queryString = "/jcr:root"+link+"/data[1]/*/* order by " + orderByNodeValue + " " + sortDirectionNodeValue;
             //String queryString = "SELECT * FROM mgnl:contentNode WHERE jcr:path LIKE \'/rssaggregator/news/data/%/%\' order by pubDate";
             log.debug(queryString);
             Query q = qm.createQuery(queryString, "xpath");
             QueryResult res = q.execute();
             Collection<Content> col = res.getContent(DataConsts.MODULE_DATA_CONTENT_NODE_TYPE);
             for (Content c : col) {
                 results.add(new NodeMapWrapper(c, c.getHandle()));
             }
             log.debug("returning collection with {} items.", "" + results.size());
             return results;
         } catch (RepositoryException e) {
             log.error(e.getLocalizedMessage(),e);
         }
         return null;
     }
 
     @Override
     public String getContextPath() {
         return MgnlContext.getContextPath();
     }
 
     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;
         }
     }
 }