feat: adding support for enums

- handling fronend upates
- adding serialization for DataService classes
- adapting notification emission

src/pyDataInterface/data_service/data_service.py

@@ -1,6 +1,7 @@
 import asyncio
 import inspect
 from collections.abc import Callable
+from enum import Enum
 from itertools import chain
 from typing import Any
 
@@ -517,6 +518,15 @@ class DataService(rpyc.Service):
                     "readonly": prop.fset is None,
                     "doc": inspect.getdoc(prop),
                 }
+            elif isinstance(value, Enum):
+                result[key] = {
+                    "type": "Enum",
+                    "value": value.name,
+                    "enum": {
+                        name: member.value
+                        for name, member in value.__class__.__members__.items()
+                    },
+                }
             else:
                 result[key] = {
                     "type": type(value).__name__,

src/pyDataInterface/server/server.py

@@ -3,6 +3,7 @@ import os
 import signal
 import threading
 from concurrent.futures import ThreadPoolExecutor
+from enum import Enum
 from types import FrameType
 from typing import Any, Optional
 
@@ -147,7 +148,11 @@ class Server:
                                 "data": {
                                     "parent_path": parent_path,
                                     "name": name,
-                                    "value": value,
+                                    "value": value.name
+                                    if isinstance(
+                                        value, Enum
+                                    )  # enums are not JSON serializable
+                                    else value,
                                 }
                             },
                         )

src/pyDataInterface/server/web_server.py

@@ -1,3 +1,4 @@
+from enum import Enum
 from pathlib import Path
 from typing import Any, TypedDict
 
@@ -55,6 +56,10 @@ class WebAPI:
             attr = getattr(self.service, data["name"])
             if isinstance(attr, DataService):
                 attr.apply_updates(data["value"])
+            elif isinstance(attr, Enum):
+                setattr(
+                    self.service, data["name"], attr.__class__[data["value"]["value"]]
+                )
             else:
                 setattr(self.service, data["name"], data["value"])