/**
    * 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.templatingkit.templates.components;
  
  import info.magnolia.cms.core.Content;
  import info.magnolia.cms.core.MgnlNodeType;
  import info.magnolia.cms.core.search.Query;
  import info.magnolia.cms.core.search.QueryResult;
  import info.magnolia.context.MgnlContext;
  import info.magnolia.dam.Dam;
  import info.magnolia.jcr.util.PropertyUtil;
  import info.magnolia.jcr.util.SessionUtil;
  import info.magnolia.module.dms.beans.Document;
  import info.magnolia.module.templatingkit.functions.STKTemplatingFunctions;
  import info.magnolia.module.templatingkit.templates.AbstractSTKTemplateModel;
  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.List;
  
  import javax.inject.Inject;
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  import javax.jcr.query.InvalidQueryException;
  
  import org.apache.commons.lang.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * STK Rendable Model definition dedicated to Download List Link display and execution.
   * @author Ryan Gardner, ochytil
   * @version $Id$
   * @param <RD>
   */
  public class DownloadListModel<RD extends TemplateDefinition> extends AbstractSTKTemplateModel<TemplateDefinition> {
  
      private static final Logger log = LoggerFactory.getLogger(DownloadListModel.class);
  
      private List<Document> documentList;
  
      @Inject
      public DownloadListModel(Node content, RD definition,  RenderingModel<?> parent, STKTemplatingFunctions stkFunctions, TemplatingFunctions templatingFunctions) {
          super(content, definition, parent, stkFunctions, templatingFunctions);
      }
  
      private String getLink() {
          return PropertyUtil.getString(content, "link");
      }
  
      private String getExtension() {
          return PropertyUtil.getString(content, "extension");
      }
  
      private String getQuery() {
          return PropertyUtil.getString(content, "query");
      }
  
      /**
       * Get the documents.
       * @return
       */
      public List<Document> getDocumentList() {
          return documentList;
      }
  
     /**
      * FIXME usage of deprecated classes: {@link Content}.
      */
     @Override
     public String execute() {
         String link = getLink();
         List<String> expressions = new ArrayList<String>();
 
         if (StringUtils.isNotEmpty(link)) {
             Node node = SessionUtil.getNode(Dam.DAM_WORKSPACE, link);
             expressions.add("jcr:path like '" + link + "/%'");
         }
 
         String extension = getExtension();
         if(StringUtils.isNotEmpty(extension)){
             expressions.add("extension = '" + extension + "'");
         }
 
         String query = getQuery();
         if(StringUtils.isNotEmpty(query)){
             expressions.add(query);
         }
 
         if(expressions.size() > 0){
             String where = StringUtils.join(expressions.iterator(), " and ");
 
             String queryStr= "SELECT * FROM nt:base WHERE " + where;
 
             try {
                 Query q = MgnlContext.getQueryManager(Dam.DAM_WORKSPACE).createQuery(queryStr, "sql");
 
                 QueryResult result = q.execute();
                 documentList = new ArrayList<Document>(result.getContent("mgnl:contentNode").size());
                 for (Content node : result.getContent("mgnl:contentNode")) {
                     if (Document.isDocument(node)) {
                         Document doc = new Document(node);
                         if(!node.hasMixin(MgnlNodeType.MIX_DELETED)){
                             documentList.add(doc);
                         }
                     }
                 }
             }
             catch (InvalidQueryException re){
                 log.warn("Query cannot be solved with exception: " + re);
             }
             catch (RepositoryException re) {
                 throw new RuntimeException(re);
             }
         }
         return super.execute();
     }
 
     /**
      * FIXME usage of deprecated classes: {@link Content}.
      */
     public String getLinkToDocument(Document document){
        return templatingFunctions.link(document.getNode().getJCRNode());
     }
 
 
 }