Created new REST API action to list orphan visits

module/Rest/src/Action/Visit/OrphanVisitsAction.php

@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shlinkio\Shlink\Rest\Action\Visit;
+
+use Laminas\Diactoros\Response\JsonResponse;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Shlinkio\Shlink\Common\Paginator\Util\PagerfantaUtilsTrait;
+use Shlinkio\Shlink\Common\Rest\DataTransformerInterface;
+use Shlinkio\Shlink\Core\Model\VisitsParams;
+use Shlinkio\Shlink\Core\Visit\VisitsStatsHelperInterface;
+use Shlinkio\Shlink\Rest\Action\AbstractRestAction;
+
+class OrphanVisitsAction extends AbstractRestAction
+{
+    use PagerfantaUtilsTrait;
+
+    protected const ROUTE_PATH = '/visits/orphan';
+    protected const ROUTE_ALLOWED_METHODS = [self::METHOD_GET];
+
+    private VisitsStatsHelperInterface $visitsHelper;
+    private DataTransformerInterface $orphanVisitTransformer;
+
+    public function __construct(
+        VisitsStatsHelperInterface $visitsHelper,
+        DataTransformerInterface $orphanVisitTransformer
+    ) {
+        $this->visitsHelper = $visitsHelper;
+        $this->orphanVisitTransformer = $orphanVisitTransformer;
+    }
+
+    public function handle(ServerRequestInterface $request): ResponseInterface
+    {
+        $params = VisitsParams::fromRawData($request->getQueryParams());
+        $visits = $this->visitsHelper->orphanVisits($params);
+
+        return new JsonResponse([
+            'visits' => $this->serializePaginator($visits, $this->orphanVisitTransformer),
+        ]);
+    }
+}