Completed
Pull Request — master (#29)
by
unknown
06:10
created

ResponseBuilder::__construct()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 4

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 3
CRAP Score 1

Importance

Changes 0
Metric Value
dl 0
loc 4
ccs 3
cts 3
cp 1
rs 10
c 0
b 0
f 0
cc 1
nc 1
nop 1
crap 1
1
<?php
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namespace Softonic\GraphQL;
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use Psr\Http\Message\ResponseInterface;
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class ResponseBuilder
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{
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    private $dataObjectBuilder;
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    public function __construct(DataObjectBuilder $dataObjectBuilder)
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    {
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        $this->dataObjectBuilder = $dataObjectBuilder;
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    }
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    public function build(ResponseInterface $httpResponse)
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    {
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        $body = $httpResponse->getBody();
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        $normalizedResponse = $this->getNormalizedResponse($body);
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        return new Response(
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            $normalizedResponse['data'],
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            $normalizedResponse['dataObject'],
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            $normalizedResponse['errors']
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        );
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    }
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    private function getNormalizedResponse(string $body)
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    {
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        $decodedResponse = $this->getJsonDecodedResponse($body);
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        if (false === array_key_exists('data', $decodedResponse) && empty($decodedResponse['errors'])) {
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            throw new \UnexpectedValueException(
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                'Invalid GraphQL JSON response. Response body: ' . json_encode($decodedResponse)
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            );
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        }
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        return [
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            'data'       => $decodedResponse['data'] ?? [],
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            'dataObject' => $this->dataObjectBuilder->build($decodedResponse['data'] ?? []),
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            'errors'     => $decodedResponse['errors'] ?? [],
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        ];
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    }
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    private function getJsonDecodedResponse(string $body)
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    {
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        $response = json_decode($body, true);
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        $error = json_last_error();
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        if (JSON_ERROR_NONE !== $error) {
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            throw new \UnexpectedValueException(
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                'Invalid JSON response. Response body: ' . $body
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            );
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        }
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        return $response;
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    }
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}
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