ApiClients\Middleware\Json\JsonDecodeMiddleware

Complexity

Total Complexity

8

Size/Duplication

Total Lines	60
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	6

Test Coverage

Coverage

80%

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
B	post()	0	33	7

<?php declare(strict_types=1);

namespace ApiClients\Middleware\Json;

use ApiClients\Foundation\Middleware\Annotation\ThirdLast;
use ApiClients\Foundation\Middleware\ErrorTrait;
use ApiClients\Foundation\Middleware\MiddlewareInterface;
use ApiClients\Foundation\Middleware\PreTrait;
use ApiClients\Tools\Json\JsonDecodeService;
use GuzzleHttp\Psr7\BufferStream;
use Psr\Http\Message\ResponseInterface;
use React\Promise\CancellablePromiseInterface;
use function React\Promise\resolve;
use React\Stream\ReadableStreamInterface;

class JsonDecodeMiddleware implements MiddlewareInterface
{
    use PreTrait;
    use ErrorTrait;

    /**
     * @var JsonDecodeService
     */
    private $jsonDecodeService;

    /**
     * JsonDecode constructor.
     * @param JsonDecodeService $jsonDecodeService
     */
    public function __construct(JsonDecodeService $jsonDecodeService)
    {
        $this->jsonDecodeService = $jsonDecodeService;
    }

    /**
     * @param  ResponseInterface           $response
     * @param  array                       $options
     * @return CancellablePromiseInterface
     *
     * @ThirdLast()
     */
    public function post(
        ResponseInterface $response,
        string $transactionId,
        array $options = []
    ): CancellablePromiseInterface {
        if ($response->getBody() instanceof ReadableStreamInterface) {
            return resolve($response);
        }

        if (!isset($options[self::class]) &&
            \strpos($response->getHeaderLine('Content-Type'), 'application/json') !== 0) {
            return resolve($response);
        }

        if (isset($options[self::class][Options::CONTENT_TYPE]) &&
            $response->getHeaderLine('Content-Type') !== $options[self::class][Options::CONTENT_TYPE]) {
            return resolve($response);
        }

        $body = (string)$response->getBody();
        if ($body === '') {
            $stream = new BufferStream(0);
            $stream->write($body);

            return resolve($response->withBody($stream));
        }

        return $this->jsonDecodeService->decode($body)->then(function ($json) use ($response) {
            $body = new JsonStream($json);

            return resolve($response->withBody($body));
        });
    }
}