BEHAVIOR-003: learn causal shadow triggers

tests/api/test_entities.py

@@ -76,6 +76,7 @@ def test_entities_returns_reader_data() -> None:
                 "entity_id": "sensor.temperature",
                 "domain": "sensor",
                 "state": None,
+                "last_changed": None,
                 "state_class": None,
             "device_class": None,
             "unit_of_measurement": None,

tests/behavior/test_engine.py

@@ -5,7 +5,7 @@ from pathlib import Path
 
 import pytest
 
-from app.actuators.models import BehaviorMode, BehaviorStatus
+from app.actuators.models import BehaviorMode, BehaviorPattern, BehaviorStatus
 from app.actuators.store import ActuatorStore
 from app.behavior.engine import BehaviorEngine, predict_behavior, service_for_state
 from app.config import Settings
@@ -189,6 +189,98 @@ def test_engine_excludes_known_automation_actions(tmp_path: Path) -> None:
     assert {pattern.source for pattern in trained.behavior.patterns} == {"user"}
 
 
+def test_engine_learns_causal_automation_for_shadow_without_user_credit(
+    tmp_path: Path,
+) -> None:
+    now = datetime.now(timezone.utc).replace(second=0, microsecond=0)
+    actuator_points: list[StateHistoryPoint] = []
+    door_points: list[StateHistoryPoint] = []
+    logbook: list[LogbookEntry] = []
+    for days_ago in (3, 2, 1):
+        action_at = now - timedelta(days=days_ago)
+        actuator_points.extend(
+            [
+                StateHistoryPoint(
+                    timestamp=action_at - timedelta(minutes=1),
+                    state="off",
+                ),
+                StateHistoryPoint(timestamp=action_at, state="on"),
+            ]
+        )
+        door_points.extend(
+            [
+                StateHistoryPoint(
+                    timestamp=action_at - timedelta(minutes=1),
+                    state="off",
+                ),
+                StateHistoryPoint(
+                    timestamp=action_at - timedelta(seconds=1),
+                    state="on",
+                ),
+            ]
+        )
+        logbook.append(
+            LogbookEntry(
+                entity_id="light.storage",
+                timestamp=action_at,
+                message="turned on",
+                context_domain="automation",
+                context_service="trigger",
+            )
+        )
+    actuator_points.sort(key=lambda point: point.timestamp)
+    door_points.sort(key=lambda point: point.timestamp)
+    settings = _settings(tmp_path)
+    store = ActuatorStore(settings.actuator_store)
+    record = store.configure("light.storage")
+    store.upsert(
+        record.model_copy(
+            update={
+                "assignment": record.assignment.model_copy(
+                    update={
+                        "selected_context_entity_ids": [
+                            "binary_sensor.storage_door"
+                        ],
+                    }
+                )
+            }
+        )
+    )
+    reader = FakeBehaviorReader(
+        entities=[],
+        history=[
+            StateHistorySeries(
+                entity_id="light.storage",
+                points=actuator_points,
+            ),
+            StateHistorySeries(
+                entity_id="binary_sensor.storage_door",
+                points=door_points,
+            ),
+        ],
+        logbook=logbook,
+    )
+    engine = BehaviorEngine(ha_reader=reader, store=store, settings=settings)
+
+    trained = engine.train("light.storage")
+    automation_patterns = [
+        pattern
+        for pattern in trained.behavior.patterns
+        if pattern.source == "automation"
+    ]
+
+    assert len(automation_patterns) == 3
+    assert trained.behavior.high_confidence_sample_count == 0
+    assert {
+        (
+            pattern.trigger_entity_id,
+            pattern.trigger_from_state,
+            pattern.trigger_to_state,
+        )
+        for pattern in automation_patterns
+    } == {("binary_sensor.storage_door", "off", "on")}
+
+
 def test_active_mode_rejects_unsafe_domains(tmp_path: Path) -> None:
     settings = _settings(tmp_path)
     store = ActuatorStore(settings.actuator_store)
@@ -259,3 +351,66 @@ def test_prediction_requires_temporal_support() -> None:
         min_support=3,
         window_minutes=30,
     ) is None
+
+
+def test_prediction_uses_fresh_causal_context_transition_outside_time_window() -> None:
+    now = datetime.now(timezone.utc).replace(second=0, microsecond=0)
+    patterns = [
+        BehaviorPattern(
+            target_state="on",
+            minute_of_day=60,
+            weekday=0,
+            context_states={"binary_sensor.storage_door": "on"},
+            trigger_entity_id="binary_sensor.storage_door",
+            trigger_from_state="off",
+            trigger_to_state="on",
+            source="automation",
+            weight=0.7,
+            observed_at=now - timedelta(days=days_ago),
+        )
+        for days_ago in (3, 2, 1)
+    ]
+
+    prediction = predict_behavior(
+        patterns,
+        current_context={"binary_sensor.storage_door": "on"},
+        current_context_changed_at={
+            "binary_sensor.storage_door": now - timedelta(seconds=10)
+        },
+        now=now,
+        min_support=3,
+        window_minutes=30,
+    )
+
+    assert prediction is not None
+    assert prediction.target_state == "on"
+    assert prediction.matching_patterns == 3
+    assert prediction.confidence == 0.7
+    assert "frischen Sensorwechsel" in prediction.reason
+
+
+def test_prediction_ignores_stale_causal_context_state() -> None:
+    now = datetime.now(timezone.utc).replace(second=0, microsecond=0)
+    pattern = BehaviorPattern(
+        target_state="on",
+        minute_of_day=60,
+        weekday=0,
+        context_states={"binary_sensor.storage_door": "on"},
+        trigger_entity_id="binary_sensor.storage_door",
+        trigger_from_state="off",
+        trigger_to_state="on",
+        source="automation",
+        weight=0.7,
+        observed_at=now - timedelta(days=1),
+    )
+
+    assert predict_behavior(
+        [pattern],
+        current_context={"binary_sensor.storage_door": "on"},
+        current_context_changed_at={
+            "binary_sensor.storage_door": now - timedelta(minutes=5)
+        },
+        now=now,
+        min_support=1,
+        window_minutes=30,
+    ) is None

tests/ha/test_ha_reader.py

@@ -15,6 +15,7 @@ class FakeHaClient(HaClient):
             {
                 "entity_id": "sensor.temperature",
                 "state": "21.5",
+                "last_changed": "2026-06-14T12:00:00+00:00",
                 "attributes": {
                     "state_class": "measurement",
                     "device_class": "temperature",
@@ -87,6 +88,7 @@ def test_ha_reader_returns_summaries() -> None:
     sensor = next(item for item in summaries if item.entity_id == "sensor.temperature")
     assert sensor.unit_of_measurement == "°C"
     assert sensor.state == "21.5"
+    assert sensor.last_changed == datetime(2026, 6, 14, 12, 0, tzinfo=timezone.utc)
     assert sensor.area_name == "Kueche"
     assert sensor.device_name == "Thermometer"
 

tests/test_dashboard.py

@@ -16,6 +16,7 @@ def test_dashboard_is_served_at_root() -> None:
     assert "Du wählst keine Sensoren und erstellst keine Regeln" in response.text
     assert "Freigabe noch gesperrt" in response.text
     assert "Bediene das Licht dafür direkt über Home Assistant" in response.text
+    assert "Davon erkannte HA-Automationen" in response.text
     assert 'record.behavior.status === "trained" && missingUserActions === 0' in response.text
     assert "Automation-Entwurf" not in response.text
     assert "Manuelle Overrides" not in response.text