ACT-001: actuator-first sensor lifecycle

app/actuators/store.py

@@ -0,0 +1,116 @@
+from __future__ import annotations
+
+import json
+import os
+from datetime import datetime, timezone
+from pathlib import Path
+from threading import RLock
+
+from app.actuators.models import (
+    ActuatorRecord,
+    LifecycleStatus,
+    ModelLifecycleState,
+    ReconciliationState,
+    model_id_for_actuator,
+)
+
+
+class ActuatorStore:
+    def __init__(self, root: str | Path) -> None:
+        self._root = Path(root).resolve()
+        self._actuators_root = self._root / "actuators"
+        self._actuators_root.mkdir(parents=True, exist_ok=True)
+        self._lock = RLock()
+        self._reconciliation_state_path = self._root / "reconciliation_state.json"
+
+    def list(self) -> list[ActuatorRecord]:
+        with self._lock:
+            return [self._load(path) for path in sorted(self._actuators_root.glob("*.json"))]
+
+    def get(self, actuator_entity_id: str) -> ActuatorRecord:
+        with self._lock:
+            target = self._target(actuator_entity_id)
+            if not target.exists():
+                raise KeyError("Aktuator-Konfiguration nicht gefunden.")
+            return self._load(target)
+
+    def upsert(self, record: ActuatorRecord) -> ActuatorRecord:
+        with self._lock:
+            self._persist(record)
+            return record
+
+    def configure(self, actuator_entity_id: str, *, enabled: bool = True) -> ActuatorRecord:
+        with self._lock:
+            target = self._target(actuator_entity_id)
+            if target.exists():
+                record = self._load(target)
+                updated = record.model_copy(
+                    update={
+                        "enabled": enabled,
+                        "updated_at": datetime.now(timezone.utc),
+                    }
+                )
+                self._persist(updated)
+                return updated
+            record = ActuatorRecord(
+                actuator_entity_id=actuator_entity_id,
+                enabled=enabled,
+                lifecycle=ModelLifecycleState(
+                    model_id=model_id_for_actuator(actuator_entity_id),
+                    status=LifecycleStatus.PENDING_ASSIGNMENT,
+                ),
+            )
+            self._persist(record)
+            return record
+
+    def delete(self, actuator_entity_id: str) -> None:
+        with self._lock:
+            target = self._target(actuator_entity_id)
+            if target.exists():
+                target.unlink()
+
+    def load_reconciliation_state(self) -> ReconciliationState:
+        with self._lock:
+            if not self._reconciliation_state_path.exists():
+                return ReconciliationState()
+            try:
+                return ReconciliationState.model_validate_json(
+                    self._reconciliation_state_path.read_text(encoding="utf-8")
+                )
+            except ValueError as exc:
+                raise ValueError("Ungültiger Reconciliation-Status.") from exc
+
+    def save_reconciliation_state(self, state: ReconciliationState) -> ReconciliationState:
+        with self._lock:
+            self._persist_reconciliation_state(state)
+            return state
+
+    def _target(self, actuator_entity_id: str) -> Path:
+        if "." not in actuator_entity_id:
+            raise ValueError("Ungültige actuator_entity_id.")
+        safe_name = actuator_entity_id.replace(".", "__")
+        return self._actuators_root / f"{safe_name}.json"
+
+    def _persist(self, record: ActuatorRecord) -> None:
+        target = self._target(record.actuator_entity_id)
+        temporary = target.with_suffix(".json.tmp")
+        temporary.write_text(
+            json.dumps(record.model_dump(mode="json"), ensure_ascii=True, sort_keys=True) + "\n",
+            encoding="utf-8",
+        )
+        os.replace(temporary, target)
+
+    def _persist_reconciliation_state(self, state: ReconciliationState) -> None:
+        temporary = self._reconciliation_state_path.with_suffix(".json.tmp")
+        temporary.write_text(
+            json.dumps(state.model_dump(mode="json"), ensure_ascii=True, sort_keys=True) + "\n",
+            encoding="utf-8",
+        )
+        os.replace(temporary, self._reconciliation_state_path)
+
+    @staticmethod
+    def _load(path: Path) -> ActuatorRecord:
+        try:
+            return ActuatorRecord.model_validate_json(path.read_text(encoding="utf-8"))
+        except ValueError as exc:
+            raise ValueError(f"Ungültige Aktuator-Konfiguration: {path.name}") from exc