1 files changed, 15 insertions, 0 deletions
diff --git a/Digitigrade/Model/Interaction.php b/Digitigrade/Model/Interaction.php
index bf0745e..38065c1 100644
--- a/Digitigrade/Model/Interaction.php
+++ b/Digitigrade/Model/Interaction.php
@@ -47,7 +47,22 @@ class Interaction extends PushableModel {
         return self::findAllWhere('target = ?', [$target->id]);
     }
 
+    protected function getRelevantServers(): array {
+        $instances = array_map(function (Actor $actor) {
+            return Instance::findByHostname(hostname_from_uri($actor->uri));
+        }, $this->author->findFollowers());
+        $instances[] = Instance::findByHostname(hostname_from_uri($this->target->uri));
+        return $instances;
+    }
+
     public function jsonSerialize(): array {
+        if ($this->deleted) {
+            return [
+                'type' => 'tombstone',
+                'self' => path_to_uri("/interaction/$this->id"),
+                'previousType' => 'interaction'
+            ];
+        }
         return [
             'type' => 'interaction',
             'self' => path_to_uri("/interaction/$this->id"),