<?php
/**
 * @package        OpenCart
 * @author         Daniel Kerr
 * @copyright      Copyright (c) 2005 - 2022, OpenCart, Ltd. (https://www.opencart.com/)
 * @license        https://opensource.org/licenses/GPL-3.0
 * @link           https://www.opencart.com
 */

/**
 * Proxy class
 */
class Proxy {
    /**
     * @param    string    $key
     */
    public function __get($key) {
        return $this->{$key};
    }

    /**
     * @param    string    $key
     * @param    string    $value
     */
    public function __set($key, $value) {
        $this->{$key} = $value;
    }

    public function __call($key, $args) {
        $arg_data = [];

        $args     = func_get_args();

        foreach ($args as $arg) {
            if ($arg instanceof Ref) {
                $arg_data[] =& $arg->getRef();
            } else {
                $arg_data[] =& $arg;
            }
        }

        if (isset($this->{$key})) {
            return call_user_func_array($this->{$key}, $arg_data);
        } else {
            $trace = debug_backtrace();

            exit('<b>Notice</b>:  Undefined property: Proxy::' . $key . ' in <b>' . $trace[1]['file'] . '</b> on line <b>' . $trace[1]['line'] . '</b>');
        }
    }
}