private fork from github

websocket/app/Component/Formatter/SubscriptionFormatter.php

@@ -0,0 +1,41 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: exodu
+ * Date: 31.03.2018
+ * Time: 13:09
+ */
+
+namespace Exodus4D\Socket\Component\Formatter;
+
+
+class SubscriptionFormatter{
+
+    /**
+     * group charactersData by systemId based on their current 'log' data
+     * @param array $charactersData
+     * @return array
+     */
+    static function groupCharactersDataBySystem(array $charactersData) : array {
+        $data = [];
+        foreach($charactersData as $characterId => $characterData){
+            // check if characterData has an active log (active system for character)
+            $systemId = 0;
+            if(isset($characterData['log']['system']['id'])){
+                $systemId = (int)$characterData['log']['system']['id'];
+            }
+
+            if( !isset($data[$systemId]) ){
+                $systemData = (object)[];
+                $systemData->id = $systemId;
+                $data[$systemId] = $systemData;
+            }
+
+            $data[$systemId]->user[] = $characterData;
+        }
+        $data = array_values($data);
+
+        return $data;
+    }
+
+}