/
CacheResponseClient.php
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/
CacheResponseClient.php
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<?php declare(strict_types=1);
namespace StrictPhp\HttpClients\Clients\CacheResponse;
use Psr\Http\Client\ClientInterface;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\SimpleCache\CacheInterface;
use StrictPhp\HttpClients\Exceptions\InvalidStateException;
use StrictPhp\HttpClients\Managers\ConfigManager;
use StrictPhp\HttpClients\Responses\SerializableResponse;
final class CacheResponseClient implements ClientInterface
{
public function __construct(
private readonly ClientInterface $client,
private readonly CacheInterface $cache,
private readonly ConfigManager $configManager,
) {
}
public function sendRequest(RequestInterface $request): ResponseInterface
{
$config = $this->configManager->get(Config::class, $request->getUri()->getHost());
if ($config->ttl !== null && $config->ttl < 1) {
return $this->request($request);
}
$key = $config->getCacheKeyMakerAction()
->execute($request);
$response = $config->saveOnly ? null : $this->restoreRequest($key);
if ($response instanceof ResponseInterface === false) {
$response = $this->request($request);
$this->storeRequest($key, $response, $config->ttl);
}
return $response;
}
private function request(RequestInterface $request): ResponseInterface
{
return $this->client->sendRequest($request);
}
private function restoreRequest(string $key): ?ResponseInterface
{
$response = $this->cache->get($key);
if (($response instanceof SerializableResponse) === false && $response !== null) {
throw new InvalidStateException('The data in cache are broken.');
}
return $response?->response;
}
private function storeRequest(string $key, ResponseInterface $response, ?int $ttl): void
{
$this->cache->set($key, new SerializableResponse($response), $ttl);
}
}