json : encode status color and last record time

app/Server.php

@@ -39,7 +39,7 @@ class Server extends Model
     
     // add attributes when serializing to json
     // https://laravel.com/docs/8.x/eloquent-serialization#appending-values-to-json
-    protected $appends = ['url', 'status', 'failing_sensors'];
+    protected $appends = ['url', 'status', 'failing_sensors', 'last_record_time'];
     
     public function getUrlAttribute() : string
     {
@@ -62,6 +62,10 @@ class Server extends Model
         return $failing_sensors;
     }
     
+    public function getLastRecordTime() : int
+    {
+        return $this->info()->lastRecordTime()->timestamp;
+    }
     
 
     /**

app/Status.php

@@ -37,7 +37,8 @@ class Status
     {
         return [
             "code" => $this->code,
-            "name" => $this->__toString()];
+            "name" => $this->__toString(),
+            "color" => $this->color()];
     }
 
     public function code() : int