/**
    * This file Copyright (c) 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.groovy.setup;
  
  import java.io.IOException;
  import java.io.InputStream;
  
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  import javax.jcr.Session;
  
  import org.apache.commons.io.IOUtils;
  import org.apache.commons.lang.StringUtils;
  
  import info.magnolia.cms.core.MgnlNodeType;
  import info.magnolia.cms.util.ClasspathResourcesUtil;
  import info.magnolia.jcr.util.NodeUtil;
  import info.magnolia.module.InstallContext;
  import info.magnolia.module.delta.AbstractTask;
  import info.magnolia.module.delta.TaskExecutionException;
  
  
  /**
   * This install task will install a Groovy file into the groovyModule file system.
   *
   * @version $Id$
   *
   */
  public class InstallGroovyFile extends AbstractTask {
      private String pattern;
  
      public InstallGroovyFile(String taskName, String taskDescription) {
          super(taskName, taskDescription);
      }
  
      public InstallGroovyFile(String taskName, String taskDescription, String pattern) {
          super(taskName, taskDescription);
          this.pattern = pattern;
      }
  
      @Override
      public void execute(InstallContext installContext) throws TaskExecutionException {
          try {
              // Get the resources
              String[] resources = ClasspathResourcesUtil.findResources(pattern);
              for(String resource:resources) {
                  createResource(resource, installContext);
              }
  
          } catch (Exception e) {
              throw new TaskExecutionException("Can't install resource [" + pattern + "]", e);
          }
      }
  
  
      private void createResource(String resource, InstallContext installContext) throws RepositoryException, IOException {
          //Init
          String name = StringUtils.substringAfterLast(resource, "/");
          name = StringUtils.substringBeforeLast(name, ".");
          String path = StringUtils.substringBeforeLast(resource, "/");
          //Get Session
          Session session = installContext.getJCRSession("scripts");
          //Create folder hierarchy if needed
          Node parent = NodeUtil.createPath(session.getRootNode(), path, MgnlNodeType.NT_FOLDER);
          //Create the Groovy file node
          Node node = null;
          if(parent.hasNode(name)) {
              node = parent.getNode(name);
         } else {
             node = NodeUtil.createPath(parent, name, MgnlNodeType.NT_CONTENT);
         }
 
         InputStream stream = ClasspathResourcesUtil.getStream(resource);
         try{
             String content = IOUtils.toString(stream);
             node.setProperty("text", content);
             node.setProperty("script", true);
             node.setProperty("enabled", false);
         }
         finally{
             IOUtils.closeQuietly(stream);
         }
     }
 
 }