Feature: add Bridge\Psr7Response for Nette UI integration

Add a dedicated response class implementing Nette\Application\IResponse
that wraps a PSR-7 ResponseInterface. This enables cleaner integration
in Nette presenters:

  $this->sendResponse(new Psr7Response($psr7));

Closes #26

Author: f3l1x

src/Bridge/Psr7Response.php

@@ -0,0 +1,55 @@
+<?php declare(strict_types = 1);
+
+namespace Contributte\Psr7\Bridge;
+
+use Nette\Application\Response as ApplicationResponse;
+use Nette\Http\IRequest;
+use Nette\Http\IResponse;
+use Psr\Http\Message\ResponseInterface;
+
+class Psr7Response implements ApplicationResponse
+{
+
+	public function __construct(
+		private ResponseInterface $response,
+	)
+	{
+	}
+
+	public function getResponse(): ResponseInterface
+	{
+		return $this->response;
+	}
+
+	public function send(IRequest $httpRequest, IResponse $httpResponse): void
+	{
+		$this->sendStatus($httpResponse);
+		$this->sendHeaders($httpResponse);
+		$this->sendBody();
+	}
+
+	protected function sendStatus(IResponse $httpResponse): void
+	{
+		$httpResponse->setCode($this->response->getStatusCode(), $this->response->getReasonPhrase());
+	}
+
+	protected function sendHeaders(IResponse $httpResponse): void
+	{
+		foreach ($this->response->getHeaders() as $name => $values) {
+			foreach ($values as $value) {
+				$httpResponse->setHeader($name, $value);
+			}
+		}
+	}
+
+	protected function sendBody(): void
+	{
+		$stream = $this->response->getBody();
+		$stream->rewind();
+
+		while (!$stream->eof()) {
+			echo $stream->read(8192);
+		}
+	}
+
+}

tests/Cases/Bridge/Psr7ResponseTest.php

@@ -0,0 +1,100 @@
+<?php declare(strict_types = 1);
+
+namespace Tests\Cases\Bridge;
+
+use Contributte\Psr7\Bridge\Psr7Response;
+use Contributte\Psr7\Psr7Response as Psr7MessageResponse;
+use Contributte\Tester\Utils\Httpkit;
+use Nette\Http\Request;
+use Nette\Http\Response;
+use Nette\Http\UrlScript;
+use Psr\Http\Message\ResponseInterface;
+use Tester\Assert;
+use Tester\TestCase;
+
+require_once __DIR__ . '/../../bootstrap.php';
+
+class Psr7ResponseTest extends TestCase
+{
+
+	public function testGetResponse(): void
+	{
+		$psr7Response = Psr7MessageResponse::fromGlobals();
+		$response = new Psr7Response($psr7Response);
+
+		Assert::type(ResponseInterface::class, $response->getResponse());
+		Assert::same($psr7Response, $response->getResponse());
+	}
+
+	public function testSend(): void
+	{
+		$psr7Response = Psr7MessageResponse::fromGlobals()
+			->withStatus(201)
+			->withHeader('X-Custom', 'test-value')
+			->withHeader('Content-Type', 'application/json');
+
+		$psr7Response->getBody()->write('{"foo":"bar"}');
+
+		$response = new Psr7Response($psr7Response);
+
+		$httpRequest = new Request(new UrlScript('https://example.com'));
+		$httpResponse = new Response();
+
+		Httpkit::wrap(function () use ($response, $httpRequest, $httpResponse): void {
+			ob_start();
+			$response->send($httpRequest, $httpResponse);
+			$output = ob_get_clean();
+
+			Assert::equal('{"foo":"bar"}', $output);
+		});
+
+		Assert::equal(201, $httpResponse->getCode());
+	}
+
+	public function testSendWithEmptyBody(): void
+	{
+		$psr7Response = Psr7MessageResponse::fromGlobals()
+			->withStatus(204);
+
+		$response = new Psr7Response($psr7Response);
+
+		$httpRequest = new Request(new UrlScript('https://example.com'));
+		$httpResponse = new Response();
+
+		Httpkit::wrap(function () use ($response, $httpRequest, $httpResponse): void {
+			ob_start();
+			$response->send($httpRequest, $httpResponse);
+			$output = ob_get_clean();
+
+			Assert::equal('', $output);
+		});
+
+		Assert::equal(204, $httpResponse->getCode());
+	}
+
+	public function testSendWithMultipleHeaders(): void
+	{
+		$psr7Response = Psr7MessageResponse::fromGlobals()
+			->withStatus(200)
+			->withHeader('X-First', 'first')
+			->withHeader('X-Second', 'second');
+
+		$psr7Response->getBody()->write('content');
+
+		$response = new Psr7Response($psr7Response);
+
+		$httpRequest = new Request(new UrlScript('https://example.com'));
+		$httpResponse = new Response();
+
+		Httpkit::wrap(function () use ($response, $httpRequest, $httpResponse): void {
+			ob_start();
+			$response->send($httpRequest, $httpResponse);
+			ob_end_clean();
+		});
+
+		Assert::equal(200, $httpResponse->getCode());
+	}
+
+}
+
+(new Psr7ResponseTest())->run();