<?php
/*
* 2007-2013 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  2007-2013 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

define('_PS_SMARTY_DIR_', _PS_TOOL_DIR_.'smarty/');

require_once(_PS_SMARTY_DIR_.'Smarty.class.php');

global $smarty;
$smarty = new Smarty();
$smarty->setCompileDir(_PS_CACHE_DIR_.'smarty/compile');
$smarty->setCacheDir(_PS_CACHE_DIR_.'smarty/cache');
if (!Tools::getSafeModeStatus())
	$smarty->use_sub_dirs = true;
$smarty->setConfigDir(_PS_SMARTY_DIR_.'configs');
$smarty->caching = false;
$smarty->force_compile = (Configuration::get('PS_SMARTY_FORCE_COMPILE') == _PS_SMARTY_FORCE_COMPILE_) ? true : false;
$smarty->compile_check = (Configuration::get('PS_SMARTY_FORCE_COMPILE') >= _PS_SMARTY_CHECK_COMPILE_) ? true : false;

// Production mode
$smarty->debugging = false;
$smarty->debugging_ctrl = 'NONE';

if (Configuration::get('PS_SMARTY_CONSOLE') == _PS_SMARTY_CONSOLE_OPEN_BY_URL_)
{
	$smarty->debugging_ctrl = 'URL';
	$smarty->smarty_debug_id = Configuration::get('PS_SMARTY_CONSOLE_KEY');
}
else if (Configuration::get('PS_SMARTY_CONSOLE') == _PS_SMARTY_CONSOLE_OPEN_)
	$smarty->debugging = true;

/* Use this constant if you want to load smarty without all PrestaShop functions */
if (defined('_PS_SMARTY_FAST_LOAD_') && _PS_SMARTY_FAST_LOAD_)
	return;

if (defined('_PS_ADMIN_DIR_'))
	require_once (dirname(__FILE__).'/smartyadmin.config.inc.php');
else
	require_once (dirname(__FILE__).'/smartyfront.config.inc.php');

smartyRegisterFunction($smarty, 'modifier', 'truncate', 'smarty_modifier_truncate');
smartyRegisterFunction($smarty, 'modifier', 'secureReferrer', array('Tools', 'secureReferrer'));

smartyRegisterFunction($smarty, 'function', 't', 'smartyTruncate'); // unused
smartyRegisterFunction($smarty, 'function', 'm', 'smartyMaxWords'); // unused
smartyRegisterFunction($smarty, 'function', 'p', 'smartyShowObject'); // Debug only
smartyRegisterFunction($smarty, 'function', 'd', 'smartyDieObject'); // Debug only
smartyRegisterFunction($smarty, 'function', 'l', 'smartyTranslate', false);
smartyRegisterFunction($smarty, 'function', 'hook', 'smartyHook');
smartyRegisterFunction($smarty, 'function', 'toolsConvertPrice', 'toolsConvertPrice');
smartyRegisterFunction($smarty, 'modifier', 'json_encode', array('Tools', 'jsonEncode'));
smartyRegisterFunction($smarty, 'modifier', 'json_decode', array('Tools', 'jsonDecode'));
smartyRegisterFunction($smarty, 'function', 'dateFormat', array('Tools', 'dateFormat'));
smartyRegisterFunction($smarty, 'function', 'convertPrice', array('Product', 'convertPrice'));
smartyRegisterFunction($smarty, 'function', 'convertPriceWithCurrency', array('Product', 'convertPriceWithCurrency'));
smartyRegisterFunction($smarty, 'function', 'displayWtPrice', array('Product', 'displayWtPrice'));
smartyRegisterFunction($smarty, 'function', 'displayWtPriceWithCurrency', array('Product', 'displayWtPriceWithCurrency'));
smartyRegisterFunction($smarty, 'function', 'displayPrice', array('Tools', 'displayPriceSmarty'));
smartyRegisterFunction($smarty, 'modifier', 'convertAndFormatPrice', array('Product', 'convertAndFormatPrice')); // used twice
smartyRegisterFunction($smarty, 'function', 'getAdminToken', array('Tools', 'getAdminTokenLiteSmarty'));
smartyRegisterFunction($smarty, 'function', 'displayAddressDetail', array('AddressFormat', 'generateAddressSmarty'));
smartyRegisterFunction($smarty, 'function', 'getWidthSize', array('Image', 'getWidth'));
smartyRegisterFunction($smarty, 'function', 'getHeightSize', array('Image', 'getHeight'));


function smartyDieObject($params, &$smarty)
{
	return Tools::d($params['var']);
}

function smartyShowObject($params, &$smarty)
{
	return Tools::p($params['var']);
}

function smartyMaxWords($params, &$smarty)
{
	Tools::displayAsDeprecated();
	$params['s'] = str_replace('...', ' ...', html_entity_decode($params['s'], ENT_QUOTES, 'UTF-8'));
	$words = explode(' ', $params['s']);

	foreach($words AS &$word)
		if(Tools::strlen($word) > $params['n'])
			$word = Tools::substr(trim(chunk_split($word, $params['n']-1, '- ')), 0, -1);

	return implode(' ',  Tools::htmlentitiesUTF8($words));
}

function smartyTruncate($params, &$smarty)
{
	Tools::displayAsDeprecated();
	$text = isset($params['strip']) ? strip_tags($params['text']) : $params['text'];
	$length = $params['length'];
	$sep = isset($params['sep']) ? $params['sep'] : '...';

	if (Tools::strlen($text) > $length + Tools::strlen($sep))
		$text = Tools::substr($text, 0, $length).$sep;

	return (isset($params['encode']) ? Tools::htmlentitiesUTF8($text, ENT_NOQUOTES) : $text);
}

function smarty_modifier_truncate($string, $length = 80, $etc = '...', $break_words = false, $middle = false, $charset = 'UTF-8')
{
	if (!$length)
		return '';

	if (Tools::strlen($string) > $length)
	{
		$length -= min($length, Tools::strlen($etc));
		if (!$break_words && !$middle)
			$string = preg_replace('/\s+?(\S+)?$/u', '', Tools::substr($string, 0, $length+1, $charset));
		return !$middle ? Tools::substr($string, 0, $length, $charset).$etc : Tools::substr($string, 0, $length/2, $charset).$etc.Tools::substr($string, -$length/2, $length, $charset);
	}
	else
		return $string;
}

function smarty_modifier_htmlentitiesUTF8($string)
{
		return Tools::htmlentitiesUTF8($string);
}
function smartyMinifyHTML($tpl_output, &$smarty)
{
    $tpl_output = Media::minifyHTML($tpl_output);
    return $tpl_output;
}

function smartyPackJSinHTML($tpl_output, &$smarty)
{
    $tpl_output = Media::packJSinHTML($tpl_output);
    return $tpl_output;
}

function smartyRegisterFunction($smarty, $type, $function, $params, $lazy = true)
{
	if (!in_array($type, array('function', 'modifier')))
		return false;

	// lazy is better if the function is not called on every page
	if ($lazy)
	{
		$lazy_register = SmartyLazyRegister::getInstance();
		$lazy_register->register($params);

		if (is_array($params))
			$params = $params[1];

		// SmartyLazyRegister allows to only load external class when they are needed
		$smarty->registerPlugin($type, $function, array($lazy_register, $params));
	}
	else
		$smarty->registerPlugin($type, $function, $params);
}

function smartyHook($params, &$smarty)
{
	if (!empty($params['h']))
	{
		$id_module = null;
		$hook_params = $params;
		$hook_params['smarty'] = $smarty;
		if (!empty($params['mod']))
		{
			$module = Module::getInstanceByName($params['mod']);
			if ($module && $module->id)
				$id_module = $module->id;
			unset($hook_params['mod']);
		}
		unset($hook_params['h']);
		return Hook::exec($params['h'], $hook_params, $id_module);
	}
}

function toolsConvertPrice($params, &$smarty)
{
	return Tools::convertPrice($params['price'], Context::getContext()->currency);
}

/**
 * Used to delay loading of external classes with smarty->register_plugin
 */
class SmartyLazyRegister
{
	protected $registry = array();
	protected static $instance;

	/**
	 * Register a function or method to be dynamically called later
	 * @param $params function name or array(object name, method name)
	 */
	public function register($params)
	{
		if (is_array($params))
			$this->registry[$params[1]] = $params;
		else
			$this->registry[$params] = $params;
	}

	/**
	 * Dynamically call static function or method
	 *
	 * @param $name function name
	 * @param $arguments function argument
	 * @return mixed function return
	 */
	public function __call($name, $arguments)
	{
		$item = $this->registry[$name];

		// case 1: call to static method - case 2 : call to static function
		if (is_array($item[1]))
			return call_user_func_array($item[1].'::'.$item[0], array($arguments[0], &$arguments[1]));
		else
		{
			$args = array();
			
			foreach($arguments as $a => $argument)
				if($a == 0)
					$args[] = $arguments[0]; 
				else
					$args[] = &$arguments[$a]; 
			
			return call_user_func_array($item, $args);
		}
	}

	public static function getInstance()
	{
		if (!self::$instance)
			self::$instance = new SmartyLazyRegister();
		return self::$instance;
	}
}
