feature/ha-adapter: Grundmodell, Client und Reader für Home Assistant

app/ha/client.py

@@ -0,0 +1,33 @@
+from __future__ import annotations
+
+import logging
+from dataclasses import dataclass
+
+import requests
+
+logger = logging.getLogger(__name__)
+
+
+@dataclass(frozen=True)
+class HaClientSettings:
+    url: str
+    token: str
+    timeout_seconds: int = 10
+
+
+class HaClient:
+    def __init__(self, settings: HaClientSettings) -> None:
+        self._settings = settings
+        self._session = requests.Session()
+        self._session.headers.update({
+            "Authorization": f"Bearer {settings.token}",
+            "Content-Type": "application/json",
+        })
+
+    def list_entities(self) -> list[dict[str, object]]:
+        response = self._session.get(
+            f"{self._settings.url}/api/states",
+            timeout=self._settings.timeout_seconds,
+        )
+        response.raise_for_status()
+        return response.json()