'aliases' => array(
        'FrontendAssets'    => 'LibFrontendAssets',
)

class FrontendAssets
{
    /**
     * Styles array to include on every admin page
     * @var array
     */
    protected static $styles = [];
    /**
     * Scripts array to include on every admin page
     * @var array
     */
    protected static $scripts = [];

    public static function styles()
    {
        return static::assets(static::$styles);
    }

    public static function addStyle($style)
    {
        static::$styles[] = $style;
    }

    public static function scripts()
    {
        $scripts = static::assets(static::$scripts);

        return $scripts;
    }

    public static function addScript($script)
    {
        static::$scripts[] = $script;
    }

    /**
     * @param $assets
     * @return array
     */
    public static function assets($assets)
    {
        return array_map(function ($asset)
        {
            return $asset;
        }, array_unique($assets));
    }
}

FrontendAssets::assets();