public function getEngine()
    {
        if($this->engine) {
            return $this->engine;
        }

        //get the template path
        $path = eve()->path('template');

        //create engine
        $this->engine = eve('handlebars');

        //add helpers
        $helpers = include(__DIR__.'/helpers.php');

        foreach($helpers as $name => $callback) {
            $this->engine->registerHelper($name, $callback);
        }

        return $this->engine;
    }