Improve comms typing (#18599)

* Enable mypy for comms

* Make zmq data types consistent

* Cleanup inter process typing issues

* Cleanup embeddings typing

* Cleanup config updater

* Cleanup recordings updator

* Make publisher have a generic type

* Cleanup event metadata updater

* Cleanup event metadata updater

* Cleanup detections updater

* Cleanup websocket

* Cleanup mqtt

* Cleanup webpush

* Cleanup dispatcher

* Formatting

* Remove unused

* Add return type

* Fix tests

* Fix semantic triggers config typing

* Cleanup

frigate/comms/embeddings_updater.py

@@ -1,10 +1,14 @@
 """Facilitates communication between processes."""
 
+import logging
 from enum import Enum
 from typing import Any, Callable
 
 import zmq
 
+logger = logging.getLogger(__name__)
+
+
 SOCKET_REP_REQ = "ipc:///tmp/cache/embeddings"
 
 
@@ -41,9 +45,16 @@ class EmbeddingsResponder:
                 break
 
             try:
-                (topic, value) = self.socket.recv_json(flags=zmq.NOBLOCK)
+                raw = self.socket.recv_json(flags=zmq.NOBLOCK)
 
-                response = process(topic, value)
+                if isinstance(raw, list):
+                    (topic, value) = raw
+                    response = process(topic, value)
+                else:
+                    logging.warning(
+                        f"Received unexpected data type in ZMQ recv_json: {type(raw)}"
+                    )
+                    response = None
 
                 if response is not None:
                     self.socket.send_json(response)
@@ -65,7 +76,7 @@ class EmbeddingsRequestor:
         self.socket = self.context.socket(zmq.REQ)
         self.socket.connect(SOCKET_REP_REQ)
 
-    def send_data(self, topic: str, data: Any) -> str:
+    def send_data(self, topic: str, data: Any) -> Any:
         """Sends data and then waits for reply."""
         try:
             self.socket.send_json((topic, data))