Migrated to bitflags

server/src/util/bitflags.rs

@@ -0,0 +1,18 @@
+#[macro_export]
+macro_rules! bitflags_serde_impl {
+    ($type:ident, $int_type:ident) => {
+        impl serde::Serialize for $type {
+            fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
+                serializer.serialize_i64(self.bits() as i64)
+            }
+        }
+
+        impl<'de> serde::Deserialize<'de> for $type {
+            fn deserialize<D: serde::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
+                let v: i64 = Deserialize::deserialize(deserializer)?;
+
+                Ok($type::from_bits_truncate(v as $int_type))
+            }
+        }
+    };
+}