Categorize manual events as alerts when their label is an alert label (#23981)

* Categorize manual events as alerts when their label is an alert label

* tweak docs

frigate/test/test_review_manual_event_severity.py

@@ -0,0 +1,154 @@
+"""Tests for manual event severity categorization.
+
+Regression coverage for manual events created via the events API being
+categorized as detections when their label appears in both the alerts and
+detections label lists. Alert labels must win, matching how tracked objects
+are categorized, and labels in neither list must default to alerts so the
+historical behavior of the API is preserved.
+"""
+
+import unittest
+
+from frigate.config import FrigateConfig
+from frigate.review.maintainer import ReviewSegmentMaintainer
+from frigate.review.types import SeverityEnum
+
+BASE_CONFIG = """
+mqtt:
+  enabled: False
+cameras:
+  front_door:
+    ffmpeg:
+      inputs:
+        - path: rtsp://10.0.0.1:554/video
+          roles:
+            - detect
+    detect:
+      width: 1920
+      height: 1080
+      fps: 5
+%s
+"""
+
+
+class TestManualEventSeverity(unittest.TestCase):
+    def _make_maintainer(self, review_config: str = "") -> ReviewSegmentMaintainer:
+        """Build a maintainer without invoking __init__ (avoids needing ZMQ
+        sockets, shared memory, and clip dirs). Only the config is read when
+        categorizing a manual event label."""
+        maintainer = ReviewSegmentMaintainer.__new__(ReviewSegmentMaintainer)
+        maintainer.config = FrigateConfig.parse_yaml(BASE_CONFIG % review_config)
+        return maintainer
+
+    def test_defaults_to_alert(self) -> None:
+        maintainer = self._make_maintainer()
+
+        self.assertEqual(
+            maintainer.get_manual_event_severity("front_door", "person"),
+            SeverityEnum.alert,
+        )
+
+    def test_unlisted_label_defaults_to_alert(self) -> None:
+        maintainer = self._make_maintainer(
+            """
+    review:
+      detections:
+        labels:
+          - dog
+"""
+        )
+
+        self.assertEqual(
+            maintainer.get_manual_event_severity("front_door", "pir_sensor"),
+            SeverityEnum.alert,
+        )
+
+    def test_detection_label_is_detection(self) -> None:
+        maintainer = self._make_maintainer(
+            """
+    review:
+      alerts:
+        labels:
+          - person
+      detections:
+        labels:
+          - pir_sensor
+"""
+        )
+
+        self.assertEqual(
+            maintainer.get_manual_event_severity("front_door", "pir_sensor"),
+            SeverityEnum.detection,
+        )
+
+    def test_alert_label_wins_over_detection_label(self) -> None:
+        maintainer = self._make_maintainer(
+            """
+    review:
+      alerts:
+        labels:
+          - person
+      detections:
+        labels:
+          - person
+          - dog
+"""
+        )
+
+        self.assertEqual(
+            maintainer.get_manual_event_severity("front_door", "person"),
+            SeverityEnum.alert,
+        )
+
+    def test_sub_label_is_stripped_before_categorizing(self) -> None:
+        maintainer = self._make_maintainer(
+            """
+    review:
+      alerts:
+        labels:
+          - person
+      detections:
+        labels:
+          - person
+"""
+        )
+
+        self.assertEqual(
+            maintainer.get_manual_event_severity("front_door", "person: Bob"),
+            SeverityEnum.alert,
+        )
+
+    def test_alert_label_is_detection_when_alerts_disabled(self) -> None:
+        maintainer = self._make_maintainer(
+            """
+    review:
+      alerts:
+        enabled: False
+        labels:
+          - person
+      detections:
+        labels:
+          - person
+"""
+        )
+
+        self.assertEqual(
+            maintainer.get_manual_event_severity("front_door", "person"),
+            SeverityEnum.detection,
+        )
+
+    def test_no_severity_when_alerts_disabled_and_label_not_a_detection(self) -> None:
+        maintainer = self._make_maintainer(
+            """
+    review:
+      alerts:
+        enabled: False
+      detections:
+        labels:
+          - dog
+"""
+        )
+
+        self.assertIsNone(
+            maintainer.get_manual_event_severity("front_door", "pir_sensor")
+        )