/**
    * This file Copyright (c) 2014 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.form.setup.migration;
  
  import info.magnolia.module.InstallContext;
  import info.magnolia.module.delta.AbstractRepositoryTask;
  import info.magnolia.module.delta.TaskExecutionException;
  
  import java.util.List;
  
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  import javax.jcr.Session;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Task .
   */
  public class AddMissingDefaultValuesToFieldsTask extends AbstractRepositoryTask {
  
      private static final Logger log = LoggerFactory.getLogger(AddMissingDefaultValuesToFieldsTask.class);
      private final List<String> fields;
      private final String value;
      private final String propertyName;
  
      public AddMissingDefaultValuesToFieldsTask(List<String> fields, String propertyName, String value) {
          super("Add missing proprties to dialogs fields", String.format("Adds properties '%s=%s' to fields: %s", propertyName, value, fields));
          this.fields = fields;
          this.propertyName = propertyName;
          this.value = value;
      }
  
      @Override
      protected void doExecute(InstallContext installContext) throws RepositoryException, TaskExecutionException {
          Session config = installContext.getConfigJCRSession();
  
          for (String field : fields) {
              if (!config.nodeExists(field)) {
                  installContext.warn(String.format("Can't set property '%s=%s' to nonexisting field: '%s'.", propertyName, value, field));
                  continue;
              }
              Node fieldNode = config.getNode(field);
              if (!fieldNode.hasProperty(propertyName)) {
                  fieldNode.setProperty(propertyName, value);
              }
          }
  
      }
  
  }