Update FederationController, add proper following/follower counts

app/Http/Controllers/FederationController.php

@@ -30,6 +30,7 @@ use App\Util\ActivityPub\{
 };
 use Zttp\Zttp;
 use App\Services\InstanceService;
+use App\Services\AccountService;
 
 class FederationController extends Controller
 {
@@ -239,12 +240,15 @@ class FederationController extends Controller
     {
         abort_if(!config_cache('federation.activitypub.enabled'), 404);
 
+        $id = AccountService::usernameToId($username);
+        abort_if(!$id, 404);
+        $account = AccountService::get($id);
+        abort_if(!$account || !isset($account['following_count']), 404);
         $obj = [
             '@context' => 'https://www.w3.org/ns/activitystreams',
             'id'       => $request->getUri(),
-			'type'     => 'OrderedCollectionPage',
-			'totalItems' => 0,
-			'orderedItems' => []
+            'type'     => 'OrderedCollection',
+            'totalItems' => $account['following_count'] ?? 0,
         ];
         return response()->json($obj);
     }
@@ -252,15 +256,16 @@ class FederationController extends Controller
     public function userFollowers(Request $request, $username)
     {
         abort_if(!config_cache('federation.activitypub.enabled'), 404);
-
+        $id = AccountService::usernameToId($username);
+        abort_if(!$id, 404);
+        $account = AccountService::get($id);
+        abort_if(!$account || !isset($account['followers_count']), 404);
         $obj = [
             '@context' => 'https://www.w3.org/ns/activitystreams',
             'id'       => $request->getUri(),
-			'type'     => 'OrderedCollectionPage',
-			'totalItems' => 0,
-			'orderedItems' => []
+            'type'     => 'OrderedCollection',
+            'totalItems' => $account['followers_count'] ?? 0,
         ];
-
         return response()->json($obj);
     }
 }