package com.atlassian.plugin.webresource;
   
   import org.dom4j.DocumentHelper;
   
   import java.util.Arrays;
   import java.util.HashMap;
   import java.util.Map;
   
   import static java.util.Arrays.asList;
  
  /**
   *
   */
  public class Dom4jFluent
  {
      public static Map<String,String> attributes(String... attrs)
      {
          Map<String, String> result = new HashMap<String, String>();
          for (int x=0; x<attrs.length; x+= 2)
          {
              result.put(attrs[x], attrs[x+1]);
          }
          return result;
      }
      /**
       * Constructs the element with a textual body
       *
       * @param name  The element name
       * @param value The element text value
       * @return The element object
       */
      public static Element element(String name, String value)
      {
          return new Element(name, null, value, new Element[0]);
      }
  
      /**
       * Constructs the element containg child elements
       *
       * @param name     The element name
       * @param elements The child elements
       * @return The Element object
       */
      public static Element element(String name, Element... elements)
      {
          return new Element(name, elements);
      }
  
      /**
       * Constructs the element containg child elements
       *
       * @param name     The element name
       * @param elements The child elements
       * @return The Element object
       */
      public static Element element(String name, Iterable<Iterable<Element>> elements)
      {
          return new Element(name, elements);
      }
  
      /**
       * Constructs the element containg child elements
       *
       * @param name     The element name
       * @param elements The child elements
       * @return The Element object
       */
      public static Element element(String name, Map<String, String> attributes, Element... elements)
      {
          return new Element(name, attributes, elements);
      }
  
      /**
       * Constructs the element containg child elements
       *
       * @param name     The element name
       * @param elements The child elements
       * @return The Element object
       */
      public static Element element(String name, Map<String, String> attributes, Iterable<Iterable<Element>> elements)
      {
          return new Element(name, attributes, elements);
      }
  
      /**
       * Element wrapper class for configuration elements
       */
      public static class Element
      {
          private final Iterable<Iterable<Element>> children;
          private final String name;
          private final Map<String, String> attributes;
          private final String text;
  
          public Element(String name, Element... children)
          {
              this(name, null, children);
          }
  
         public Element(String name, Iterable<Iterable<Element>> children)
         {
             this(name, null, children);
         }
 
         public Element(String name, Map<String, String> attributes, Element... children)
         {
             this(name, attributes, null, children);
         }
 
         public Element(String name, Map<String, String> attributes, Iterable<Iterable<Element>> children)
         {
             this(name, attributes, null, children);
         }
 
         public Element(String name, Map<String, String> attributes, String text, Element... children)
         {
             this(name, attributes, text, Arrays.<Iterable<Element>>asList(asList(children)));
         }
 
         public Element(String name, Map<String, String> attributes, String text, Iterable<Iterable<Element>> children)
         {
             this.name = name;
             this.attributes = attributes;
             this.text = text;
 
             this.children = children;
         }
 
         public org.dom4j.Element toDom()
         {
 
             org.dom4j.Element dom = DocumentHelper.createElement(name);
             if (attributes != null)
             {
                 for (Map.Entry<String,String> entry : attributes.entrySet())
                 {
                     dom.addAttribute(entry.getKey(), entry.getValue());
                 }
             }
             if (text != null)
             {
                 dom.setText(text);
             }
             if (children != null)
             {
                 for (Iterable<Element> i : children)
                 {
                     for (Element e : i)
                     {
                         dom.add(e.toDom());
                     }
                 }
             }
 
             return dom;
         }
     }
 
 }