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<?php
namespace JsonApi\Routes\Courseware\PeerReview;
use Course;
use Courseware\PeerReview;
use JsonApi\Errors\AuthorizationFailedException;
use JsonApi\Errors\RecordNotFoundException;
use JsonApi\JsonApiController;
use JsonApi\Routes\Courseware\Authority;
use JsonApi\Schemas\Courseware\PeerReview as PeerReviewSchema;
use JsonApi\Schemas\Courseware\Task as TaskSchema;
use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use User;
/**
* Displays all PeerReviews of a course.
*
* @SuppressWarnings(PHPMD.LongVariable)
* @SuppressWarnings(PHPMD.StaticAccess)
*/
class ReviewsIndex extends JsonApiController
{
protected $allowedIncludePaths = [
PeerReviewSchema::REL_PROCESS,
PeerReviewSchema::REL_REVIEWER,
PeerReviewSchema::REL_SUBMITTER,
PeerReviewSchema::REL_TASK,
PeerReviewSchema::REL_TASK . '.' . TaskSchema::REL_STRUCTURAL_ELEMENT,
PeerReviewSchema::REL_TASK . '.' . TaskSchema::REL_TASK_GROUP,
];
protected $allowedPagingParameters = ['offset', 'limit'];
/**
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*
* @param array $args
*
* @return Response
*/
public function __invoke(Request $request, Response $response, $args)
{
$course = Course::find($args['id']);
if (!$course) {
throw new RecordNotFoundException();
}
$user = $this->getUser($request);
$this->authorize($user);
$resources = $this->findPeerReviews($course, $user);
return $this->getPaginatedContentResponse(
array_slice($resources, ...$this->getOffsetAndLimit()),
count($resources)
);
}
/**
* @throws AuthorizationFailedException
*/
private function authorize(User $user): void
{
if (!Authority::canIndexPeerReviews($user)) {
throw new AuthorizationFailedException();
}
}
private function findPeerReviews(Course $course, User $user): array
{
return array_filter(PeerReview::findByCourse($course), function ($peerReview) use ($user) {
return Authority::canShowPeerReview($user, $peerReview);
});
}
}
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