class ProductTypeExtension extends AbstractTypeExtension
{
    public $app;

    public function __construct($app)
    {
        $this->app = $app;
    }

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $app = $this->app;
        if (!$app->isGranted('ROLE_ADMIN')) {
            return;
        }

        $builder->addEventListener(FormEvents::POST_SET_DATA, function (FormEvent $event) use ($app) {
            $Product = $event->getData();
            if (!$Product) {
                return;
            }
            $product_id = $Product->getId();
            if (!$product_id) {
                return;
            }

            $default = null;
            $TestProduct = $app['eccube.plugin.test.repository.test_product']->findOneBy(array('product_id' => $product_id));
            if ($TestProduct) {
                $default = $TestProduct->getId();
            }

            $Tests = $app['eccube.repository.xxxxx']->findBy(array(), array('rank' => 'DESC'));
            if (empty($Tests) || !is_array($Tests)) {
                return;
            }
            $selTests = array();
            foreach ($Tests as $Test) {
                $selTests[$Test->getId()] = $Test;
            }

            $form = $event->getForm();

            $form->add('plg_test_id', 'choice', array(
                'mapped' => false,
                'required' => true,
                'choices' => array('__unselected' => '選択してください') + $seTests,
                'data' => $TestProduct->getId(),
                'constraints' => array(
                    new Assert\NotBlank(),
                    new Assert\NotEqualTo(array(
                        'value' => '__unselected',
                        'message' => 'form.type.select.notselect'
                    )),
                ),
            ))
        });
    }

    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
    }

    public function getExtendedType()
    {
        return 'admin_product';
    }
}