<?php
/*
* 2007-2012 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <contact@prestashop.com>
*  @copyright  2007-2012 PrestaShop SA
*  @version  Release: $Revision: 14001 $
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

class WebserviceOutputJSON implements WebserviceOutputInterface
{
	public $docUrl = '';
	public $languages = array();
	protected $wsUrl;
	protected $schemaToDisplay;
	
	/**
	 * Current entity
	 */
	protected $currentEntity;
	
	/**
	 * Current association
	 */
	protected $currentAssociatedEntity;
	
	/**
	 * Json content
	 */
	protected $content = array();
	
	public function __construct($languages = array())
	{
		$this->languages = $languages;
	}
	
	public function setSchemaToDisplay($schema)
	{
		if (is_string($schema))
			$this->schemaToDisplay = $schema;
		return $this;
	}
	
	public function getSchemaToDisplay()
	{
		return $this->schemaToDisplay;
	}
	
	public function setWsUrl($url)
	{
		$this->wsUrl = $url;
		return $this;
	}
	
	public function getWsUrl()
	{
		return $this->wsUrl;
	}

	public function getContentType()
	{
		return 'text/html';
		return 'application/json';
	}
	
	public function renderErrors($message, $code = null)
	{
		$this->content['errors'][] = array('code' => $code, 'message' => $message);
		return '';
	}
	
	public function renderField($field)
	{
		$is_association = (isset($field['is_association']) && $field['is_association'] == true);

		if (is_array($field['value']))
		{
			$tmp = array();
			foreach ($this->languages as $id_lang)
				$tmp[] = array('id' => $id_lang, 'value' => $field['value'][$id_lang]);
			if (count($tmp) == 1)
				$field['value'] = $tmp[0]['value'];
			else
				$field['value'] = $tmp;
		}
		// Case 1 : fields of the current entity (not an association)
		if (!$is_association)
		{
			$this->currentEntity[$field['sqlId']]  = $field['value'];
		}
		else // Case 2 : fields of an associated entity to the current one 
		{
			$this->currentAssociatedEntity[] = array('name' => $field['entities_name'], 'key' => $field['sqlId'], 'value' => $field['value']);
		}
		return '';
	}
	
	public function renderNodeHeader($node_name, $params, $more_attr = null, $has_child = true)
	{
		// api ?
		static $isAPICall = false;
		if ($node_name == 'api' && ($isAPICall == false))
			$isAPICall = true;
		if ($isAPICall && !in_array($node_name, array('description', 'schema', 'api')))
		{
			$this->content[] = $node_name;
		}
		if (isset($more_attr, $more_attr['id']))
		{
			$this->content[$params['objectsNodeName']][] = array('id' => $more_attr['id']);
		}
		return '';
	}
	
	public function getNodeName($params)
	{
		$node_name = '';
		if (isset($params['objectNodeName']))
			$node_name = $params['objectNodeName'];
		return $node_name;
	}
	
	public function renderNodeFooter($node_name, $params)
	{
		if (isset($params['objectNodeName']) && $params['objectNodeName'] == $node_name)
		{
			if (array_key_exists('display', $_GET))
				$this->content[$params['objectsNodeName']][] = $this->currentEntity;
			else
				$this->content[$params['objectNodeName']] = $this->currentEntity;
			$this->currentEntity = array();
		}
		if (count($this->currentAssociatedEntity))
		{
			$current = array();
			foreach ($this->currentAssociatedEntity as $element)
				$current[$element['key']] = $element['value'];
			//$this->currentEntity['associations'][$element['name']][][$element['key']] = $element['value'];
			$this->currentEntity['associations'][$element['name']][] = $current;
			$this->currentAssociatedEntity = array();
		}		
	}
	
	public function overrideContent($content)
	{
		$content = '';
		$content .= json_encode($this->content);
		$content = preg_replace("/\\\\u([a-f0-9]{4})/e", "iconv('UCS-4LE','UTF-8',pack('V', hexdec('U$1')))", $content);
		return $content;
	}
	
	public function setLanguages($languages)
	{
		$this->languages = $languages;
		return $this;
	}

	public function renderAssociationWrapperHeader() { return ''; }
	public function renderAssociationWrapperFooter() { return ''; }
	public function renderAssociationHeader($obj, $params, $assoc_name, $closed_tags = false) { return ''; }
	public function renderAssociationFooter($obj, $params, $assoc_name) { return; }
	public function renderErrorsHeader() { return ''; }
	public function renderErrorsFooter() { return ''; }
	public function renderAssociationField($field) { return ''; }
	public function renderi18nField($field) { return ''; }
}