/**
    * This file Copyright (c) 2015 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.templating.elements;
  
  import info.magnolia.cms.beans.config.ServerConfiguration;
  import info.magnolia.rendering.context.RenderingContext;
  import info.magnolia.rendering.engine.RenderException;
  import info.magnolia.rendering.template.TemplateDefinition;
  import info.magnolia.templating.freemarker.AbstractDirective;
  
  import java.io.IOException;
  
  import javax.jcr.Node;
  
  import org.apache.commons.lang3.StringUtils;
  
  /**
   * Creates the <code>cms:page</code> tag.
   */
  public class PageElement extends AbstractContentTemplatingElement {
  
      private static final String CMS_PAGE_TAG = "cms:page";
      private String dialog;
  
      public PageElement(ServerConfiguration server, RenderingContext renderingContext) {
          super(server, renderingContext);
      }
  
      @Override
      public void begin(Appendable out) throws IOException, RenderException {
          if (!renderComments()) { // override renderComments() method when adding extra condition to make sure it's in sync with adding comments in end() method
              return;
          }
  
          Node content = getPassedContent();
          if (content == null) {
              content = currentContent();
          }
  
          TemplateDefinition templateDefinition = getRequiredTemplateDefinition();
  
          dialog = resolveDialog(templateDefinition);
  
          MarkupHelper helper = new MarkupHelper(out);
  
          helper.openComment(CMS_PAGE_TAG);
          if (content != null) {
              helper.attribute(AbstractDirective.CONTENT_ATTRIBUTE, getNodePath(content));
          }
          if (dialog != null) {
              helper.attribute("dialog", dialog);
          }
          helper.append(" -->\n");
          helper.closeComment(CMS_PAGE_TAG);
  
      }
  
      @Override
      public void end(Appendable out) throws IOException, RenderException {
          if (!renderComments()) { // override renderComments() method when adding extra condition to make sure it's in sync with adding comments in begin() method
              return;
          }
      }
  
      public void setDialog(String dialog) {
          this.dialog = dialog;
      }
  
     private TemplateDefinition getRequiredTemplateDefinition() {
         return (TemplateDefinition) getRenderingContext().getRenderableDefinition();
     }
 
     private String resolveDialog(TemplateDefinition component) {
         if (StringUtils.isNotEmpty(this.dialog)) {
             return this.dialog;
         }
         String dialog = component.getDialog();
         if (StringUtils.isNotEmpty(dialog)) {
             return dialog;
         }
         return null;
     }
 }