Billogram\Api\HttpApi

Complexity

Total Complexity

17

Size/Duplication

Total Lines	168
Duplicated Lines	0 %

Coupling/Cohesion

Components	2
Dependencies	7

Test Coverage

Coverage

75.68%

Importance

Changes

0

9 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	8	2
A	httpGet()	0	10	2
A	httpPost()	0	4	1
A	httpPostRaw()	0	6	1
A	httpPut()	0	6	1
A	httpDelete()	0	6	1
A	createJsonBody()	0	4	3
A	handleErrors()	0	14	3
A	handleResponse()	0	12	3

<?php

declare(strict_types=1);
/*
 * This software may be modified and distributed under the terms
 * of the MIT license. See the LICENSE file for details.
 */

namespace Billogram\Api;

use Billogram\Exception\Domain as DomainException;
use Billogram\Hydrator\NoopHydrator;
use Http\Client\HttpClient;
use Billogram\Hydrator\Hydrator;
use Billogram\RequestBuilder;
use Psr\Http\Message\ResponseInterface;

/**
 * @author Tobias Nyholm <tobias.nyholm@gmail.com>
 */
abstract class HttpApi
{
    /**
     * @var HttpClient
     */
    protected $httpClient;
    /**
     * @var Hydrator
     */
    protected $hydrator;
    /**
     * @var RequestBuilder
     */
    protected $requestBuilder;

    /**
     * @param HttpClient     $httpClient
     * @param RequestBuilder $requestBuilder
     * @param Hydrator       $hydrator
     */
    public function __construct(HttpClient $httpClient, Hydrator $hydrator, RequestBuilder $requestBuilder)
    {
        $this->httpClient = $httpClient;
        $this->requestBuilder = $requestBuilder;
        if (!$hydrator instanceof NoopHydrator) {
            $this->hydrator = $hydrator;
        }
    }

    /**
     * Send a GET request with query parameters.
     *
     * @param string $path           Request path
     * @param array  $params         GET parameters
     * @param array  $requestHeaders Request Headers
     *
     * @return ResponseInterface
     */
    protected function httpGet(string $path, array $params = [], array $requestHeaders = []): ResponseInterface
    {
        if (count($params) > 0) {
            $path .= '?'.http_build_query($params);
        }

        return $this->httpClient->sendRequest(
            $this->requestBuilder->create('GET', $path, $requestHeaders)
        );
    }

    /**
     * Send a POST request with JSON-encoded parameters.
     *
     * @param string $path           Request path
     * @param array  $params         POST parameters to be JSON encoded
     * @param array  $requestHeaders Request headers
     *
     * @return ResponseInterface
     */
    protected function httpPost(string $path, array $params = [], array $requestHeaders = []): ResponseInterface
    {
        return $this->httpPostRaw($path, $this->createJsonBody($params), $requestHeaders);
    }

    /**
     * Send a POST request with raw data.
     *
     * @param string       $path           Request path
     * @param array|string $body           Request body
     * @param array        $requestHeaders Request headers
     *
     * @return ResponseInterface
     */
    protected function httpPostRaw(string $path, $body, array $requestHeaders = []): ResponseInterface
    {
        return $response = $this->httpClient->sendRequest(

$response is not used, you could remove the assignment.

            $this->requestBuilder->create('POST', $path, $requestHeaders, $body)
        );
    }

    /**
     * Send a PUT request with JSON-encoded parameters.
     *
     * @param string $path           Request path
     * @param array  $params         POST parameters to be JSON encoded
     * @param array  $requestHeaders Request headers
     *
     * @return ResponseInterface
     */
    protected function httpPut(string $path, array $params = [], array $requestHeaders = []): ResponseInterface
    {
        return $this->httpClient->sendRequest(
            $this->requestBuilder->create('PUT', $path, $requestHeaders, $this->createJsonBody($params))
        );
    }

    /**
     * Send a DELETE request with JSON-encoded parameters.
     *
     * @param string $path           Request path
     * @param array  $params         POST parameters to be JSON encoded
     * @param array  $requestHeaders Request headers
     *
     * @return ResponseInterface
     */
    protected function httpDelete(string $path, array $params = [], array $requestHeaders = []): ResponseInterface
    {
        return $this->httpClient->sendRequest(
            $this->requestBuilder->create('DELETE', $path, $requestHeaders, $this->createJsonBody($params))
        );
    }

    /**
     * Create a JSON encoded version of an array of parameters.
     *
     * @param array $params Request parameters
     *
     * @return null|string
     */
    private function createJsonBody(array $params)
    {
        return (count($params) === 0) ? null : json_encode($params, empty($params) ? JSON_FORCE_OBJECT : 0);
    }

    /**
     * Handle HTTP errors.
     *
     * Call is controlled by the specific API methods.
     *
     * @param ResponseInterface $response
     *
     * @throws \Billogram\Exception\DomainException
     */
    protected function handleErrors(ResponseInterface $response)
    {
        switch ($response->getStatusCode()) {
            case 404:
                throw new DomainException\NotFoundException($response->getBody()->__toString());
                break;

break; does not seem to be reachable.

            case 400:
                throw new DomainException\ValidationException($response->getBody()->__toString());
                break;

break; does not seem to be reachable.

            default:
                throw new DomainException\UnknownErrorException($response->getBody()->__toString());
                break;

break; does not seem to be reachable.

        }
    }

    /**
     * @param ResponseInterface $response
     * @param string            $class    to hydrate
     *
     * @return mixed
     *
     * @throws \Billogram\Exception
     */
    protected function handleResponse(ResponseInterface $response, $class)
    {
        if (!$this->hydrator) {
            return $response;
        }

        if ($response->getStatusCode() !== 200) {
            $this->handleErrors($response);
        }

        return $this->hydrator->hydrate($response, $class);
    }
}