/**
    * 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.editor.client.dom;
  
  import java.util.HashMap;
  
  import com.google.gwt.dom.client.Element;
  import com.google.gwt.regexp.shared.MatchResult;
  import com.google.gwt.regexp.shared.RegExp;
  
  
  /**
  * CMSComment Constructor.
  *
  * @throws IllegalArgumentException if the tagname does not start with cms:
  */
  public class CMSComment {
  
      private Element element;
      private String comment;
      private String tagName;
      private boolean isClosing = false;
  
      private HashMap<String, String> attributes;
  
      public CMSComment(Comment comment) throws IllegalArgumentException {
          this.setElement((Element)comment.cast());
          this.comment = comment.getData().trim();
  
  
          int delimiter = this.comment.indexOf(" ");
          String attributeString = "";
  
          if (delimiter < 0){
              this.tagName = this.comment;
          }
          else {
              this.tagName = this.comment.substring(0, delimiter);
              attributeString = this.comment.substring(delimiter + 1);
          }
  
          if (this.tagName.startsWith("/")) {
              setClosing(true);
              this.tagName = this.tagName.substring(1);
          }
  
  
          if (this.tagName.startsWith("cms:")) {
              String[] keyValue;
              this.attributes = new HashMap<String, String>();
              RegExp regExp = RegExp.compile("(\\S+=[\"'][^\"]*[\"'])", "g");
              for (MatchResult matcher = regExp.exec(attributeString); matcher != null; matcher = regExp.exec(attributeString)) {
                  keyValue = matcher.getGroup(0).split("=");
                  this.attributes.put(keyValue[0], keyValue[1].replace("\"", ""));
              }
          }
          else {
              throw new IllegalArgumentException("Tagname must start with 'cms:'.");
          }
  
      }
  
      public boolean isClosing() {
          return isClosing;
      }
  
      public void setClosing(boolean isClosing) {
          this.isClosing = isClosing;
     }
 
 
     public String getAttribute(String name) {
         return this.attributes.get(name);
     }
 
     public boolean hasAttribute(String name) {
         return this.attributes.containsKey(name);
     }
 
     public String getTagName() {
         return this.tagName;
     }
 
     @Override
     public String toString() {
         return this.comment;
     }
 
     public void setElement(Element element) {
         this.element = element;
     }
 
     public Element getElement() {
         return element;
     }
 
 }