<?php

namespace bff\traits;

use bff\extend\Extension;

trait AttachesExtension
{
    use ForwardsCalls;

    /**
     * Attached extension.
     * @var Extension|mixed
     */
    public $extension;

    /**
     * Call the attached extension method.
     * @param string $method
     * @param array $parameters
     * @return mixed
     */
    public function callExtension($method, $parameters)
    {
        if ($this->extension) {
            return $this->forwardCallTo($this->extension, $method, $parameters);
        }

        return null;
    }

    /**
     * Attach extension.
     * @param Extension|mixed $extension
     */
    public function attachExtension($extension)
    {
        $this->extension = $extension;
    }

    /**
     * Get attached extension.
     * @return Extension|mixed|null
     */
    public function extension()
    {
        return $this->extension;
    }
}