Smarter Regions (#8194)

* Smarter Regions

* Formatting

* Cleanup

* Fix motion region checking logic

* Add database table and migration for regions

* Update region grid on startup

* Revert init delay change

* Fix mypy

* Move object related functions to util

* Remove unused

* Fix tests

* Remove log

* Update the region daily at 2

* Fix logic

* Formatting

* Initialize grid before starting processing frames

* Move back to creating grid in main process

* Formatting

* Fixes

* Formating

* Fix region check

* Accept all but true

* Use regions grid for startup scan

* Add clarifying comment

* Fix new grid requests

* Add tests

* Delete stale region grids from DB

frigate/comms/dispatcher.py

@@ -5,10 +5,11 @@ from abc import ABC, abstractmethod
 from typing import Any, Callable
 
 from frigate.config import FrigateConfig
-from frigate.const import INSERT_MANY_RECORDINGS
+from frigate.const import INSERT_MANY_RECORDINGS, REQUEST_REGION_GRID
 from frigate.models import Recordings
 from frigate.ptz.onvif import OnvifCommandEnum, OnvifController
 from frigate.types import CameraMetricsTypes, FeatureMetricsTypes, PTZMetricsTypes
+from frigate.util.object import get_camera_regions_grid
 from frigate.util.services import restart_frigate
 
 logger = logging.getLogger(__name__)
@@ -90,6 +91,11 @@ class Dispatcher:
             restart_frigate()
         elif topic == INSERT_MANY_RECORDINGS:
             Recordings.insert_many(payload).execute()
+        elif topic == REQUEST_REGION_GRID:
+            camera = payload
+            self.camera_metrics[camera]["region_grid_queue"].put(
+                get_camera_regions_grid(camera, self.config.cameras[camera].detect)
+            )
         else:
             self.publish(topic, payload, retain=False)