<?php
/**
* Since 2013 Ovidiu Cimpean.
*
* Ovidiu Cimpean - Newsletter Pro © All rights reserved.
*
* DISCLAIMER
*
* Do not edit, modify or copy this file.
* If you wish to customize it, contact us at addons4prestashop@gmail.com.
*
* @author    Ovidiu Cimpean <addons4prestashop@gmail.com>
* @copyright Since 2013 Ovidiu Cimpean
* @license   Do not edit, modify or copy this file
*
* @version   Release: 4
*/

class NewsletterProExtendTemplateVars
{
    public static $external_vars = [
        'variables/last_delivery_address/last_delivery_address.php' => false,
        'variables/gender/gender.php' => false,
    ];

    public static function newInstance()
    {
        return new self();
    }

    /**
     * Here you can process the current user information to create your newsletter template variables
     * You can work aslo with database.
     *
     * assign variables as object :
     * $user->hello_world = 'Hello World!';
     * The variable name will be {hello_world}
     */
    public function set($user)
    {
        $user->hello_world = 'Hello World!';
        $this->loadExternalVars($user);

        return $this;
    }

    /**
     * The user parameter is used in the include path.
     */
    public function loadExternalVars(&$user)
    {
        try {
            $declared_classes = get_declared_classes();

            foreach (self::$external_vars as $path => $to_load) {
                $path = dirname(dirname(__FILE__)).'/'.$path;

                if (file_exists($path) && $to_load) {
                    $pathinfo = pathinfo($path);
                    $variable_name = $pathinfo['filename'];
                    $class_name_array = explode('_', $variable_name);
                    $class_name = '';
                    foreach ($class_name_array as $value) {
                        if ('' !== trim($value)) {
                            $class_name .= Tools::ucfirst($value);
                        }
                    }

                    $class_name = 'NewsletterProTemplateVariable'.$class_name;

                    if (preg_match('/^[A-Za-z0-9-]+$/', $class_name) && !class_exists($class_name) && !in_array($class_name, $declared_classes)) {
                        include $path;

                        if (class_exists($class_name)) {
                            $declared_classes[] = $class_name;
                            new $class_name($user);
                        }
                    }
                }
            }
        } catch (Exception $e) {
            NewsletterProLog::writeStrip($e->getMessage(), NewsletterProLog::ERROR_FILE);
        }
    }
}