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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpClient;

use Http\Discovery\Psr17Factory;
use Http\Discovery\Psr17FactoryDiscovery;
use Nyholm\Psr7\Factory\Psr17Factory as NyholmPsr17Factory;
use Nyholm\Psr7\Request;
use Nyholm\Psr7\Uri;
use Psr\Http\Client\ClientInterface;
use Psr\Http\Client\NetworkExceptionInterface;
use Psr\Http\Client\RequestExceptionInterface;
use Psr\Http\Message\RequestFactoryInterface;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseFactoryInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\StreamFactoryInterface;
use Psr\Http\Message\StreamInterface;
use Psr\Http\Message\UriFactoryInterface;
use Psr\Http\Message\UriInterface;
use Symfony\Component\HttpClient\Internal\HttplugWaitLoop;
use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
use Symfony\Contracts\HttpClient\HttpClientInterface;
use Symfony\Contracts\Service\ResetInterface;

if (!interface_exists(ClientInterface::class)) {
    throw new \LogicException('You cannot use the
"Symfony\Component\HttpClient\Psr18Client" as the
"psr/http-client" package is not installed. Try running
"composer require php-http/discovery
psr/http-client-implementation:*".');
}

if (!interface_exists(RequestFactoryInterface::class)) {
    throw new \LogicException('You cannot use the
"Symfony\Component\HttpClient\Psr18Client" as the
"psr/http-factory" package is not installed. Try running
"composer require php-http/discovery
psr/http-factory-implementation:*".');
}

/**
 * An adapter to turn a Symfony HttpClientInterface into a PSR-18
ClientInterface.
 *
 * Run "composer require php-http/discovery
psr/http-client-implementation:*"
 * to get the required dependencies.
 *
 * @author Nicolas Grekas <p@tchwork.com>
 */
final class Psr18Client implements ClientInterface,
RequestFactoryInterface, StreamFactoryInterface, UriFactoryInterface,
ResetInterface
{
    private HttpClientInterface $client;
    private ResponseFactoryInterface $responseFactory;
    private StreamFactoryInterface $streamFactory;

    public function __construct(?HttpClientInterface $client = null,
?ResponseFactoryInterface $responseFactory = null, ?StreamFactoryInterface
$streamFactory = null)
    {
        $this->client = $client ?? HttpClient::create();
        $streamFactory ??= $responseFactory instanceof
StreamFactoryInterface ? $responseFactory : null;

        if (null === $responseFactory || null === $streamFactory) {
            if (class_exists(Psr17Factory::class)) {
                $psr17Factory = new Psr17Factory();
            } elseif (class_exists(NyholmPsr17Factory::class)) {
                $psr17Factory = new NyholmPsr17Factory();
            } else {
                throw new \LogicException('You cannot use the
"Symfony\Component\HttpClient\Psr18Client" as no PSR-17 factories
have been provided. Try running "composer require php-http/discovery
psr/http-factory-implementation:*".');
            }

            $responseFactory ??= $psr17Factory;
            $streamFactory ??= $psr17Factory;
        }

        $this->responseFactory = $responseFactory;
        $this->streamFactory = $streamFactory;
    }

    public function withOptions(array $options): static
    {
        $clone = clone $this;
        $clone->client = $clone->client->withOptions($options);

        return $clone;
    }

    public function sendRequest(RequestInterface $request):
ResponseInterface
    {
        try {
            $body = $request->getBody();

            if ($body->isSeekable()) {
                $body->seek(0);
            }

            $options = [
                'headers' => $request->getHeaders(),
                'body' => $body->getContents(),
            ];

            if ('1.0' === $request->getProtocolVersion()) {
                $options['http_version'] = '1.0';
            }

            $response =
$this->client->request($request->getMethod(), (string)
$request->getUri(), $options);

            return
HttplugWaitLoop::createPsr7Response($this->responseFactory,
$this->streamFactory, $this->client, $response, false);
        } catch (TransportExceptionInterface $e) {
            if ($e instanceof \InvalidArgumentException) {
                throw new Psr18RequestException($e, $request);
            }

            throw new Psr18NetworkException($e, $request);
        }
    }

    public function createRequest(string $method, $uri): RequestInterface
    {
        if ($this->responseFactory instanceof RequestFactoryInterface) {
            return $this->responseFactory->createRequest($method,
$uri);
        }

        if (class_exists(Psr17FactoryDiscovery::class)) {
            return
Psr17FactoryDiscovery::findRequestFactory()->createRequest($method,
$uri);
        }

        if (class_exists(Request::class)) {
            return new Request($method, $uri);
        }

        throw new \LogicException(sprintf('You cannot use
"%s()" as no PSR-17 factories have been found. Try running
"composer require php-http/discovery
psr/http-factory-implementation:*".', __METHOD__));
    }

    public function createStream(string $content = ''):
StreamInterface
    {
        $stream = $this->streamFactory->createStream($content);

        if ($stream->isSeekable()) {
            $stream->seek(0);
        }

        return $stream;
    }

    public function createStreamFromFile(string $filename, string $mode =
'r'): StreamInterface
    {
        return $this->streamFactory->createStreamFromFile($filename,
$mode);
    }

    public function createStreamFromResource($resource): StreamInterface
    {
        return
$this->streamFactory->createStreamFromResource($resource);
    }

    public function createUri(string $uri = ''): UriInterface
    {
        if ($this->responseFactory instanceof UriFactoryInterface) {
            return $this->responseFactory->createUri($uri);
        }

        if (class_exists(Psr17FactoryDiscovery::class)) {
            return
Psr17FactoryDiscovery::findUrlFactory()->createUri($uri);
        }

        if (class_exists(Uri::class)) {
            return new Uri($uri);
        }

        throw new \LogicException(sprintf('You cannot use
"%s()" as no PSR-17 factories have been found. Try running
"composer require php-http/discovery
psr/http-factory-implementation:*".', __METHOD__));
    }

    public function reset(): void
    {
        if ($this->client instanceof ResetInterface) {
            $this->client->reset();
        }
    }
}

/**
 * @internal
 */
class Psr18NetworkException extends \RuntimeException implements
NetworkExceptionInterface
{
    private RequestInterface $request;

    public function __construct(TransportExceptionInterface $e,
RequestInterface $request)
    {
        parent::__construct($e->getMessage(), 0, $e);
        $this->request = $request;
    }

    public function getRequest(): RequestInterface
    {
        return $this->request;
    }
}

/**
 * @internal
 */
class Psr18RequestException extends \InvalidArgumentException implements
RequestExceptionInterface
{
    private RequestInterface $request;

    public function __construct(TransportExceptionInterface $e,
RequestInterface $request)
    {
        parent::__construct($e->getMessage(), 0, $e);
        $this->request = $request;
    }

    public function getRequest(): RequestInterface
    {
        return $this->request;
    }
}