Add Update Checker

extensions/package-manager/src/Api/Controller/CheckForUpdatesController.php

@@ -0,0 +1,40 @@
+<?php
+
+/**
+ *
+ */
+
+namespace SychO\PackageManager\Api\Controller;
+
+use Flarum\Http\RequestUtil;
+use Illuminate\Contracts\Bus\Dispatcher;
+use Illuminate\Support\Arr;
+use Laminas\Diactoros\Response\JsonResponse;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use SychO\PackageManager\Command\CheckForUpdates;
+
+class CheckForUpdatesController implements RequestHandlerInterface
+{
+    /**
+     * @var Dispatcher
+     */
+    protected $bus;
+
+    public function __construct(Dispatcher $bus)
+    {
+        $this->bus = $bus;
+    }
+
+    public function handle(ServerRequestInterface $request): ResponseInterface
+    {
+        $actor = RequestUtil::getActor($request);
+
+        $lastUpdateCheck = $this->bus->dispatch(
+            new CheckForUpdates($actor)
+        );
+
+        return new JsonResponse($lastUpdateCheck);
+    }
+}