ApiClients\Foundation\Transport\Client

Complexity

Total Complexity

18

Size/Duplication

Total Lines	182
Duplicated Lines	17.58 %

Coupling/Cohesion

Components	1
Dependencies	6

Importance

Changes

0

8 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	15	2
A	preRequest()	16	16	2
A	postRequest()	16	16	2
A	constructMiddlewares()	0	19	4
A	combinedMiddlewares()	0	14	3
A	request()	0	16	1
A	applyApiSettingsToRequest()	0	23	2
A	applyRequestOptions()	0	11	2

<?php declare(strict_types=1);

namespace ApiClients\Foundation\Transport;

use ApiClients\Foundation\Middleware\MiddlewareInterface;
use ApiClients\Foundation\Transport\CommandBus;
use Clue\React\Buzz\Browser;
use GuzzleHttp\Psr7\Request as Psr7Request;
use GuzzleHttp\Psr7\Uri;
use Interop\Container\ContainerInterface;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
use React\EventLoop\LoopInterface;
use React\Promise\CancellablePromiseInterface;
use React\Promise\PromiseInterface;
use function React\Promise\reject;
use function React\Promise\resolve;
use function WyriHaximus\React\futureFunctionPromise;

class Client
{
    const DEFAULT_OPTIONS = [
        Options::SCHEMA => 'https',
        Options::PATH => '/',
        Options::USER_AGENT => 'WyriHaximus/php-api-client',
        Options::HEADERS => [],
    ];

    /**
     * @var LoopInterface
     */
    protected $loop;

    /**
     * @var ContainerInterface
     */
    protected $container;

    /**
     * @var GuzzleClient
     */
    protected $handler;

    /**
     * @var array
     */
    protected $options = [];

    /**
     * @var MiddlewareInterface[]
     */
    protected $middleware = [];

    /**
     * @param LoopInterface $loop
     * @param ContainerInterface $container
     * @param Browser $buzz
     * @param array $options
     */
    public function __construct(
        LoopInterface $loop,
        ContainerInterface $container,
        Browser $buzz,
        array $options = []
    ) {
        $this->loop = $loop;
        $this->container = $container;
        $this->handler = $buzz;

It seems like $buzz of type object<Clue\React\Buzz\Browser> is incompatible with the declared type object<ApiClients\Foundation\Transport\GuzzleClient> of property $handler.

        $this->options = $options + self::DEFAULT_OPTIONS;

        if (isset($this->options[Options::MIDDLEWARE])) {
            $this->middleware = $this->options[Options::MIDDLEWARE];
        }
    }
    protected function preRequest(

This method seems to be duplicated in your project.

        array $middlewares,
        RequestInterface $request,
        array $options
    ): CancellablePromiseInterface {
        $promise = resolve($request);

        foreach ($middlewares as $middleware) {
            $requestMiddleware = $middleware;
            $promise = $promise->then(function (RequestInterface $request) use ($options, $requestMiddleware) {
                return $requestMiddleware->pre($request, $options);
            });
        }

        return $promise;
    }

    protected function postRequest(

This method seems to be duplicated in your project.

        array $middlewares,
        ResponseInterface $response,
        array $options
    ): CancellablePromiseInterface {
        $promise = resolve($response);

        foreach ($middlewares as $middleware) {
            $responseMiddleware = $middleware;
            $promise = $promise->then(function (ResponseInterface $response) use ($options, $responseMiddleware) {
                return $responseMiddleware->post($response, $options);
            });
        }

        return $promise;
    }

    protected function constructMiddlewares(array $options): array
    {
        $set = $this->middleware;

        if (isset($options[Options::MIDDLEWARE])) {
            $set = $this->combinedMiddlewares($options[Options::MIDDLEWARE]);
        }

        $middlewares = [];
        foreach ($set as $middleware) {
            if (!is_subclass_of($middleware, MiddlewareInterface::class)) {

Due to PHP Bug #53727, is_subclass_of might return inconsistent results on some PHP versions if \ApiClients\Foundation\Middleware\MiddlewareInterface::class can be an interface. If so, you could instead use ReflectionClass::implementsInterface.

                continue;
            }

            $middlewares[] = $this->container->get($middleware);
        }

        return $middlewares;
    }

    protected function combinedMiddlewares(array $extraMiddlewares): array
    {
        $set = $this->middleware;

        foreach ($extraMiddlewares as $middleware) {
            if (in_array($middleware, $set)) {
                continue;
            }

            $set[] = $middleware;
        }

        return $set;
    }

    /**
     * @param RequestInterface $request
     * @param array $options
     * @return PromiseInterface
     */
    public function request(RequestInterface $request, array $options = []): PromiseInterface
    {
        $request = $this->applyApiSettingsToRequest($request);
        $options = $this->applyRequestOptions($options);
        $middlewares = $this->constructMiddlewares($options);

        return $this->preRequest($middlewares, $request, $options)->then(function ($request) use ($options) {
            return resolve($this->handler->send(
                $request
            ));
        }, function (ResponseInterface $response) {
            return resolve($response);
        })->then(function (ResponseInterface $response) use ($middlewares, $options) {
            return $this->postRequest($middlewares, $response, $options);
        });
    }

    protected function applyApiSettingsToRequest(RequestInterface $request): RequestInterface
    {
        $uri = $request->getUri();
        if (strpos((string)$uri, '://') === false) {
            $uri = Uri::resolve(
                new Uri(
                    $this->options[Options::SCHEMA] .
                    '://' .
                    $this->options[Options::HOST] .
                    $this->options[Options::PATH]
                ),
                $request->getUri()
            );
        }

        return new Psr7Request(
            $request->getMethod(),
            $uri,
            $this->options[Options::HEADERS] + $request->getHeaders(),
            $request->getBody(),
            $request->getProtocolVersion()
        );
    }

    public function applyRequestOptions(array $options): array
    {
        if (!isset($this->options[Options::DEFAULT_REQUEST_OPTIONS])) {
            return $options;
        }

        return array_merge_recursive(
            $this->options[Options::DEFAULT_REQUEST_OPTIONS],
            $options
        );
    }
}