<?php
namespace ProVM\Common\Middleware;

use Psr\Http\Message\ResponseFactoryInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\RequestHandlerInterface;
use Psr\Log\LoggerInterface;
use ProVM\Common\Exception\Request\Auth\Unauthorized;
use ProVM\Common\Service\Auth as Service;

class Auth
{
    public function __construct(ResponseFactoryInterface $factory, LoggerInterface $logger, protected Service $service)
    {
        $this->setResponseFactory($factory);
        $this->setLogger($logger);
    }

    protected ResponseFactoryInterface $factory;
    protected LoggerInterface $logger;

    public function getResponseFactory(): ResponseFactoryInterface
    {
        return $this->factory;
    }
    public function getLogger(): LoggerInterface
    {
        return $this->logger;
    }

    public function setResponseFactory(ResponseFactoryInterface $factory): Auth
    {
        $this->factory = $factory;
        return $this;
    }
    public function setLogger(LoggerInterface $logger): Auth
    {
        $this->logger = $logger;
        return $this;
    }

    public function __invoke(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        if ($request->getMethod() === 'OPTIONS') {
            return $handler->handle($request);
        }
        try {
            if ($this->service->validate($request)) {
                return $handler->handle($request);
            }
        } catch (Unauthorized $e) {
            $response = $this->getResponseFactory()->createResponse($e->getCode());
            $response->getBody()->write(json_encode(['error' => $e->getCode(), 'message' => $e->getMessage()]));
        }
        $response = $this->getResponseFactory()->createResponse(413);
        $response->getBody()->write(\Safe\json_encode(['error' => 413, 'message' => 'Incorrect token']));
        return $response
            ->withHeader('Content-Type', 'application/json');
    }
}