R3bers\BittrexApi\Message\ResponseTransformer

Complexity

Total Complexity

7

Size/Duplication

Total Lines	39
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	8
Bugs	2	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	transform()	0	15	4
A	transformHeader()	0	9	3

<?php

declare(strict_types=1);

namespace R3bers\BittrexApi\Message;

use Psr\Http\Message\ResponseInterface;
use R3bers\BittrexApi\Exception\TransformResponseException;

/**
 * Class ResponseTransformer
 * @package R3bers\BittrexApi\Message
 */
class ResponseTransformer
{
    /**
     * @param ResponseInterface $response
     * @param bool|null $needSequence
     * @return array
     * @throws TransformResponseException
     */
    public function transform(ResponseInterface $response, ?bool $needSequence = null): array
    {
        $body = (string)$response->getBody();

        if (!(strpos($response->getHeaderLine('Content-Type'), 'application/json') === 0))
            throw new TransformResponseException('Error transforming response to array. Content-Type is not application/json');

        $content = json_decode($body, true);
        if (json_last_error() != JSON_ERROR_NONE)
            throw new TransformResponseException('Error transforming response to array. JSON_ERROR: ' . json_last_error());

        if ($needSequence)
            $content = array_merge($content, $this->transformHeader($response));

        return $content;
    }

    /**
     * @param ResponseInterface $response
     * @return array
     * @throws TransformResponseException
     */
    public function transformHeader(ResponseInterface $response): array
    {
        $responseHeaders = $response->getHeaders();
        if (!(isset($responseHeaders['Sequence'][0]) and is_numeric($responseHeaders['Sequence'][0])))
            throw new TransformResponseException('Error getting sequence from response headers.');
        else {
            $content = [];
            $content['Sequence'] = (int)$responseHeaders['Sequence'][0];
            return $content;
        }
    }
}