/*
 * CaMykS Engine
 * Developed by		: camyks.net
 * Author		: CaMykS Team <camyks.contact@gmail.com>
 * CaMykS Version	: 1.0a
 * Object Version	: 1.0
 * Object Type		: Engine / JS Lib
 * Create Date		: Dec 2007
 * Last Modif Date	: Dec 2007
 * History :
 * * 07-12-07 : Initial File
 *
 * XML Methods
 */

/*
 * return XML object as JS object ( from xml_serializeToXML CaMykS function )
 * @access public
 * @param XMLDoc xmlObject 
 * @return mixed
 */
function xml_serializeToJS( xmlObject ) {
  return xml_serializeValueToJS( xmlObject.firstChild );
}

/*
 * return XML value as JS value
 * @access private
 * @param XMLNode xmlNode
 * @return mixed
 */
function xml_serializeValueToJS( xmlNode ) {
  if ( xmlNode == null )
    return null;
  switch ( xmlNode.nodeName ) {
  case 'array' :
    var value = new Array();
    for ( var child = xmlNode.firstChild; child != null; child = child.nextSibling ) {
      if ( (child.nodeName == 'item') && (child.firstChild != null) )
	value.push(xml_serializeValueToJS(child.firstChild));
    }
    return value;
  case 'map' :
    var value = {};
    for ( var child = xmlNode.firstChild; child != null; child = child.nextSibling ) {
      var key;
      if ( (child.nodeName == 'item') 
	   && (child.firstChild != null) 
	   && ( child.attributes.length > 0 )
	   && ( child.attributes[0].name=="key" )
	   && ((key = child.attributes[0].value) != null) )
	value[key] = xml_serializeValueToJS(child.firstChild);
    }
    return value;
  case 'string' :
  case 'integer' :
  case 'double' :
    return ( ( xmlNode.firstChild != null ) ? xmlNode.firstChild.nodeValue : null );
  case 'boolean' :
    return ( (xmlNode.firstChild != null) && (xmlNode.firstChild.nodeValue == 'true') );
  case 'null' :
  default :
    return null;
  }
}


function xml_serializeObject(xmlObject) {
  if ( xmlObject == null )
    return null;
  return xml_serializeItem(xmlObject.firstChild);
}

function xml_serializeItem(xmlNode) {

  if( xmlNode.hasChildNodes() == false ) {
    return xml_serializeValue(xmlNode.getAttribute('type'), xmlNode );
  }
  
  nname = xmlNode.firstChild.nodeName;
  /* this node is a node value */
  if ( nname == "#text" || nname == "#cdata-section" )
    return xml_serializeValue(xmlNode.getAttribute('type'), xmlNode.firstChild );
    
  /* this is a list node */
  type = 'array';
  for ( var child = xmlNode.firstChild; child != null; child = child.nextSibling ) {
    if ( child.nodeName != nname ) {
      type = 'object';
      break;
    }
  }
  
  if ( type=='array') {
    var mynode = new Array();
    for ( var child = xmlNode.firstChild; child != null; child = child.nextSibling ) {
      mynode.push( xml_serializeItem( child ) );
    }
  } else {
    var mynode = {};
    for ( var child = xmlNode.firstChild; child != null; child = child.nextSibling ) {
      mynode[child.nodeName] = xml_serializeItem( child );
    }
  }
  return mynode;
}

function xml_serializeValue( type, xmlNode ) {
  switch ( type ) {
  case 'integer':
  case 'boolean':
    return parseInt(xmlNode.nodeValue);
  case 'double':
    return parseFloat(xmlNode.nodeValue);
  case 'string':
  default:
    if ( xmlNode.nodeValue == null )
      return '';
    return ''+xmlNode.nodeValue;
  }
}