/**
 * Class UserDateTimeType
 * @package AppBundle\Form\Type
 * 
 * Symfony DateTimeType would not render correctly
 */
class UserDateTimeType extends TextType {

	/**
	 * Works in Chrome
	 */
	const HTML5_FORMAT = 'Y-m-d\Th:i';

	/**
	 * @var \Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorage
	 */
	private $tokenStorage;

	/**
	 * @param TokenStorage $tokenStorage
	 */
	public function __construct(TokenStorage $tokenStorage)
	{
		$this->tokenStorage = $tokenStorage;
	}

	/**
	 * {@inheritdoc}
	 */
	public function buildForm(FormBuilderInterface $builder, array $options)
	{
		$builder->addModelTransformer(new \AppBundle\Form\Transformer\UserDateTimeTransformer($options['model_timezone'], $options['view_timezone'], $options['format']));
	}

	/**
	 * {@inheritdoc}
	 */
	public function configureOptions(OptionsResolver $resolver)
	{
		$resolver->setDefaults(
			[
				'widget' => 'single_text',
				'compound' => false,
				'input' => 'sting',
				## UserDateTimeTransformer
				'format' => self::HTML5_FORMAT,
				'model_timezone' => 'UTC',
				'view_timezone' => $this->tokenStorage->getToken()->getUser()->getTimeZone(),
			]
		);
	}

	/**
	 * @return null|string
	 */
	public function getBlockPrefix()
	{
		return 'date_time';
	}
}