Use zmq for event end queue and update python deps (#10886)

* Use zmq for events ended

* Cleanup

* Update deps

* formatting

frigate/comms/detections_updater.py

@@ -8,7 +8,7 @@ import zmq
 
 SOCKET_CONTROL = "inproc://control.detections_updater"
 SOCKET_PUB = "ipc:///tmp/cache/detect_pub"
-SOCKET_SUB = "ipc:///tmp/cache/detect_sun"
+SOCKET_SUB = "ipc:///tmp/cache/detect_sub"
 
 
 class DetectionTypeEnum(str, Enum):

frigate/comms/events_updater.py

@@ -5,6 +5,7 @@ import zmq
 from frigate.events.types import EventStateEnum, EventTypeEnum
 
 SOCKET_PUSH_PULL = "ipc:///tmp/cache/events"
+SOCKET_PUSH_PULL_END = "ipc:///tmp/cache/events_ended"
 
 
 class EventUpdatePublisher:
@@ -37,7 +38,53 @@ class EventUpdateSubscriber:
     def check_for_update(
         self, timeout=1
     ) -> tuple[EventTypeEnum, EventStateEnum, str, dict[str, any]]:
-        """Returns updated config or None if no update."""
+        """Returns events or None if no update."""
+        try:
+            has_update, _, _ = zmq.select([self.socket], [], [], timeout)
+
+            if has_update:
+                return self.socket.recv_pyobj()
+        except zmq.ZMQError:
+            pass
+
+        return None
+
+    def stop(self) -> None:
+        self.socket.close()
+        self.context.destroy()
+
+
+class EventEndPublisher:
+    """Publishes events that have ended."""
+
+    def __init__(self) -> None:
+        self.context = zmq.Context()
+        self.socket = self.context.socket(zmq.PUSH)
+        self.socket.connect(SOCKET_PUSH_PULL_END)
+
+    def publish(
+        self, payload: tuple[EventTypeEnum, EventStateEnum, str, dict[str, any]]
+    ) -> None:
+        """There is no communication back to the processes."""
+        self.socket.send_pyobj(payload)
+
+    def stop(self) -> None:
+        self.socket.close()
+        self.context.destroy()
+
+
+class EventEndSubscriber:
+    """Receives events that have ended."""
+
+    def __init__(self) -> None:
+        self.context = zmq.Context()
+        self.socket = self.context.socket(zmq.PULL)
+        self.socket.bind(SOCKET_PUSH_PULL_END)
+
+    def check_for_update(
+        self, timeout=1
+    ) -> tuple[EventTypeEnum, EventStateEnum, str, dict[str, any]]:
+        """Returns events ended or None if no update."""
         try:
             has_update, _, _ = zmq.select([self.socket], [], [], timeout)