/**
    * This file Copyright (c) 2011 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.cms.gui.misc.Sources;
  import info.magnolia.cms.i18n.I18nContentSupport;
  import info.magnolia.cms.i18n.I18nContentSupportFactory;
  import info.magnolia.context.MgnlContext;
  import info.magnolia.rendering.context.RenderingContext;
  import info.magnolia.rendering.engine.RenderException;
  import info.magnolia.rendering.template.TemplateDefinition;
  
  import java.io.IOException;
  
  import javax.jcr.Node;
  
  import org.apache.commons.lang.StringUtils;
  
  
  /**
   * Embeds js and css needed while authoring pages.
   *
   * @version $Id$
   */
  public class InitElement extends AbstractContentTemplatingElement {
  
      public static final String PAGE_EDITOR_JS_SOURCE =  MgnlContext.getContextPath() + "/.resources/editor/info.magnolia.templating.editor.PageEditor/info.magnolia.templating.editor.PageEditor.nocache.js";
      public static final String PAGE_EDITOR_CSS =  MgnlContext.getContextPath() + "/.resources/magnolia-templating-editor/css/editor.css";
      private static final String CMS_TAG = "cms:page";
  
      private I18nContentSupport i18nSupport = I18nContentSupportFactory.getI18nSupport();
      private String dialog;
  
      public InitElement(ServerConfiguration server, RenderingContext renderingContext) {
          super(server, renderingContext);
      }
  
      @Override
      public void begin(Appendable out) throws IOException, RenderException {
          if (!isAdmin()) {
              return;
          }
  
          Node content = getPassedContent();
          if(content == null){
              content = currentContent();
          }
  
          TemplateDefinition templateDefinition = getRequiredTemplateDefinition();
  
          dialog = resolveDialog(templateDefinition);
  
          Sources src = new Sources(MgnlContext.getContextPath());
          MarkupHelper helper = new MarkupHelper(out);
          helper.append("<!-- begin js and css added by @cms.init -->\n");
          helper.append("<meta name=\"gwt:property\" content=\"locale=" + i18nSupport.getLocale() +"\"/>\n");
          helper.append(src.getHtmlCss());
          helper.append(src.getHtmlJs());
          helper.append("<link rel=\"stylesheet\" type=\"text/css\" href=\"" + PAGE_EDITOR_CSS + "\"></link>\n");
          helper.append("<script type=\"text/javascript\" src=\"" + PAGE_EDITOR_JS_SOURCE + "\"></script>\n");
  
  
  
          helper.openComment(CMS_TAG);
          if(content != null) {
              helper.attribute("content", getNodePath(content));
          }
         helper.attribute("dialog", dialog);
         helper.append(" -->\n");
         helper.closeComment(CMS_TAG);
 
     }
 
     @Override
     public void end(Appendable out) throws IOException, RenderException {
         if (!isAdmin()) {
             return;
         }
         MarkupHelper helper = new MarkupHelper(out);
         helper.append("\n<!-- end js and css added by @cms.init -->\n");
     }
 
 
     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;
     }
 
     public void setDialog(String dialog) {
         this.dialog = dialog;
     }
 }