class SplitTestService
{
    const COOKIE_NAME = 'ab_seed';

    protected $container;


    public function __construct()
    {
        $this->container = new Container();

        $this->setSeed();
    }

    public function getHomepageVariation(): string
    {
        return tap(new Test('homepage'), function (Test $test) {
            $this->container->add($test);

            $test->setVariations([
                SplitTests::HOMEPAGE_DEFAULT => 7,
                SplitTests::HOMEPAGE_NEW => 3
            ]);
        })->getVariation();
    }

    private function setSeed(): void
    {
        $seed = request()->cookie(self::COOKIE_NAME);

        if (!$seed) {
            $seed = mt_rand();

            Cookie::queue(self::COOKIE_NAME, (string)$seed);
        }

        $this->container->setSeed($seed);
    }
}

        return tap(new Test('homepage'), function (Test $test) {
            $this->container->add($test);

            $test->setVariations([
                SplitTests::HOMEPAGE_DEFAULT => 7,
                SplitTests::HOMEPAGE_NEW => 3
            ]);

            // a code to pre-set variation if the specific request variable is passed
            if (!App::environment('production') && ($homepageVariation = request()->query('homepage-variation'))) {
                $test->setVariation('b' === $homepageVariation ? SplitTests::HOMEPAGE_NEW : SplitTests::HOMEPAGE_DEFAULT);
            }
        })->getVariation();