<?php

namespace App\DataTransformer;

use ApiPlatform\Core\DataTransformer\DataTransformerInterface;
use ApiPlatform\Core\Validator\ValidatorInterface;
use App\Dto\CreateSecretDTO;
use App\Entity\Secret;

class CreateSecretTransformer implements DataTransformerInterface
{
	/**
	 * @var ValidatorInterface
	 */
	private $validator;

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

	/**
	 * @inheritDoc
	 */
	public function transform($object, string $to, array $context = [])
	{
		$this->validator->validate($object);

		$expireInMinutes = $object->expireAfter > 0 ? $object->expireAfter : 0;

		$expireTime = null;

		if ($expireInMinutes)
		{
			$expireTime = (new \DateTimeImmutable())
				->add(new \DateInterval('PT' . $expireInMinutes . 'M'));
		}

		return (new Secret())
			->setSecretText($object->secret)
			->setExpiresAt($expireTime)
			->setRemainingViews($object->expireAfterViews);
	}

	/**
	 * @inheritDoc
	 */
	public function supportsTransformation($data, string $to, array $context = []): bool
	{
		if ($to !== Secret::class)
		{
			return false;
		}

		if ($data instanceof CreateSecretDTO)
		{
			return true;
		}

		if (isset($data['secret']) && isset($data["expireAfterViews"]))
		{
			return true;
		}

		return false;
	}
}