Wrapper.php

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<?php

declare(strict_types=1);

namespace ILIAS\MetaData\OERExposer\OAIPMH\HTTP;

use ILIAS\HTTP\GlobalHttpState;
use ILIAS\Refinery\Factory as Refinery;
use ILIAS\MetaData\OERExposer\OAIPMH\Requests\Argument;
use ILIAS\HTTP\Response\ResponseHeader;
use ILIAS\Filesystem\Stream\Streams;

class Wrapper implements WrapperInterface
{
    protected GlobalHttpState $http;
    protected Refinery $refinery;

    public function __construct(
        GlobalHttpState $http,
        Refinery $refinery
    ) {
        $this->http = $http;
        $this->refinery = $refinery;
    }

    public function requestHasArgument(Argument $argument): bool
    {
        return $this->http->wrapper()->query()->has($argument->value) ||
            $this->http->wrapper()->post()->has($argument->value);
    }

    public function retrieveArgumentFromRequest(Argument $argument): string
    {
        if ($this->http->wrapper()->query()->has($argument->value)) {
            return $this->http->wrapper()->query()->retrieve(
                $argument->value,
                $this->refinery->kindlyTo()->string()
            );
        }
        if ($this->http->wrapper()->post()->has($argument->value)) {
            return $this->http->wrapper()->post()->retrieve(
                $argument->value,
                $this->refinery->kindlyTo()->string()
            );
        }
        return '';
    }

    public function sendResponseAndClose(
        int $status_code,
        string $message = '',
        ?\DOMDocument $body = null
    ): void {
        $response = $this->http->response()
                               ->withHeader(ResponseHeader::CONTENT_TYPE, 'text/xml')
                               ->withStatus($status_code, $message);

        if (!is_null($body)) {
            $response = $response->withBody(Streams::ofString($body->saveXML()));
        }

        $this->http->saveResponse($response);
        $this->http->sendResponse();
        $this->http->close();
    }
}