<?php
/**
 * SCZF
 *
 * An open source SmartClient View Helper for Zend Framework
 *
 * @package		SCZF
 * @author		Fernando Marcelo Morgenstern <fernando@consultorpc.com> 
 * @copyright	Copyright (c) 2010, ConsultorPC
 * @license		http://www.gnu.org/licenses/lgpl-3.0-standalone.html
 * @link		http://smartclientphp.com/
 * @since		Version 0.1b
 * @filesource
 */


/**
 * Smart Client Tree Helper
 *
 * @uses viewHelper SmartClient
 */
class SmartClient_Helper_ScTree extends SmartClient_Helper_ScGeneral 
{

	/**
	 * @var Zend_View_Interface 
	 */
	public $view;
	
	/**
	 * @var Array 
	 */
	protected $_data = array();
	
	/**
	 * 
	 * Return instance
	 * 
	 */
	public function ScTree()
	{
		return $this;
	}

	/**
	 * 
	 * Sets the view field 
	 * @param $view Zend_View_Interface
	 * 
	 */
	public function setView( Zend_View_Interface $view )
	{
		$this->view = $view;
	}
	
		/**
	 * 
	 * Add Data
	 *
	 * @param mixed $data Array containing the data for the tree
	 */
	public function addData( $data )
	{
		// Check if it is an array
		if ( is_array( $data ) )
		{
			$this->_data[] = $data;
		}
	}
	
	/**
	 * Get Data
	 *
	 * Return the current data array
	 * 
	 * @return array
	 *  
	 */
	public function getData()
	{
		return $this->_data;
	}
	
	/**
	 * 
	 * Clear data
	 *
	 * Clear Data array
	 *  
	 */
	public function clearData()
	{
		unset( $this->_data );
	}

	/**
	 * 
	 * Create
	 * 
	 * Creates a new tree
	 *
	 * @param mixed $data If string, it must be the ID of the Tree Grid. If array, them we will loop through it
	 * @param string $dataSource Datasource 
	 * @param string $width Width of the button
	 * @param string $height Height of the button
	 * @param array $options Additional options
	 * @return string
	 * 
	 */
	public function create( $data , $nameProperty = '' , $relationshipField = '' , $options = '' )
	{
		$newTree = array();
		
		// Check if it is an array
		if ( is_array( $data ) )
		{
			$newTree = $data;
		}
		else
		{
			// Add vars to the new button
			$newTree['modelType'] = $data;
			$newTree['nameProperty'] = $nameProperty;
			
			// Check the current modelType and set relationship field according to each of them
			if ( $data == 'parent' )
			{
				$newTree['parentIdField'] = $relationshipField;
			}
			else
			{
				$newTree['childrenProperty'] = $relationshipField;
			}
			
			// Set data
			$newTree['data'] = $this->_data;
			
			// Check if options is array and do the loop
			if ( is_array( $options ) )
			{
				foreach ( $options as $name => $value )
				{
					$newTree[$name] = $value;
				}
			}
		}
		
		// Encode data
		$dataEncoded = $this->encode( $newTree );
		
		// Generate js code
		$js = 'isc.Tree.create( '. $dataEncoded .' )';
		
		// Add script tag
		$js = $this->addScriptTags( $js );
		
		return $js;
	}
}