Reduce websocket reconnect load

app/main.py

@@ -117,7 +117,7 @@ async def lifespan(app: FastAPI) -> AsyncIterator[None]:
 app = FastAPI(
     title="SillyHome Next API",
     description="Lokales Smart-Home-Intelligenzsystem für Home Assistant.",
-    version="1.7.1",
+    version="1.7.2",
     lifespan=lifespan,
 )
 app.state.settings = load_settings()
@@ -255,6 +255,9 @@ async def _ha_event_listener(app: FastAPI, client: HaClient) -> None:
     ws_url = ha_url.replace("http://", "ws://").replace("https://", "wss://") + "/api/websocket"
     auth_token = cast(str, settings.ha_token)
     ws_status = getattr(app.state, "ws_status", None)
+    reconnect_delay = 1.0
+    relevant_entity_ids: set[str] = set()
+    relevant_loaded_at = 0.0
     while True:
         if ws_status is not None:
             ws_status.status = "connecting"
@@ -283,6 +286,9 @@ async def _ha_event_listener(app: FastAPI, client: HaClient) -> None:
 
                 logger.info("WebSocket-Verbindung zu Home Assistant hergestellt")
                 state_cache = await asyncio.to_thread(_load_ha_state_cache, ha_reader)
+                relevant_entity_ids = await asyncio.to_thread(_relevant_entity_ids, store)
+                relevant_loaded_at = asyncio.get_running_loop().time()
+                reconnect_delay = 1.0
                 if ws_status is not None:
                     ws_status.status = "connected"
                     ws_status.error = None
@@ -309,6 +315,12 @@ async def _ha_event_listener(app: FastAPI, client: HaClient) -> None:
                         entity_id = event_data.get("entity_id")
                         if not entity_id:
                             continue
+                        loop_time = asyncio.get_running_loop().time()
+                        if loop_time - relevant_loaded_at >= 10:
+                            relevant_entity_ids = await asyncio.to_thread(_relevant_entity_ids, store)
+                            relevant_loaded_at = loop_time
+                        if entity_id not in relevant_entity_ids:
+                            continue
                         new_state = event_data.get("new_state")
                         _update_ha_state_cache(state_cache, entity_id, new_state)
                         # Prüfe, ob Entity ein Aktor oder relevanter Kontext ist
@@ -328,17 +340,24 @@ async def _ha_event_listener(app: FastAPI, client: HaClient) -> None:
             websockets.exceptions.InvalidStatus,
             OSError,
         ) as exc:
-            logger.warning("WebSocket-Verbindung unterbrochen: %s. Wiederholung in 1s...", exc)
+            delay = reconnect_delay
+            logger.warning(
+                "WebSocket-Verbindung unterbrochen: %s. Wiederholung in %.0fs...",
+                exc,
+                delay,
+            )
             if ws_status is not None:
                 ws_status.status = "reconnecting"
                 ws_status.error = str(exc)
-            await asyncio.sleep(1)
+            await asyncio.sleep(delay)
+            reconnect_delay = min(reconnect_delay * 2, 60.0)
         except Exception as exc:
             logger.exception("Unerwarteter Fehler im Event-Listener: %s", exc)
             if ws_status is not None:
                 ws_status.status = "error"
                 ws_status.error = str(exc)
-            await asyncio.sleep(1)
+            await asyncio.sleep(reconnect_delay)
+            reconnect_delay = min(reconnect_delay * 2, 60.0)
 
 
 # Fallback: periodische Vorhersage falls Event-Stream ausfällt
@@ -353,7 +372,7 @@ async def _fallback_prediction(app: FastAPI) -> None:
         await asyncio.sleep(
             app.state.settings.prediction_interval_seconds
             if websocket_connected
-            else min(5, app.state.settings.prediction_interval_seconds)
+            else max(30, app.state.settings.prediction_interval_seconds)
         )
         # Nur ausführen, wenn WebSocket nicht verbunden ist
         ws_status = getattr(app.state, "ws_status", None)
@@ -389,15 +408,14 @@ def _update_ha_state_cache(
     )
 
 
-def _is_relevant_state_change(store: ActuatorStore, entity_id: str) -> bool:
+def _relevant_entity_ids(store: ActuatorStore) -> set[str]:
+    result: set[str] = set()
     for record in store.list():
-        if record.actuator_entity_id == entity_id:
-            return True
-        if record.assignment.selected_numeric_entity_id == entity_id:
-            return True
-        if entity_id in record.assignment.selected_context_entity_ids:
-            return True
-    return False
+        result.add(record.actuator_entity_id)
+        if record.assignment.selected_numeric_entity_id:
+            result.add(record.assignment.selected_numeric_entity_id)
+        result.update(record.assignment.selected_context_entity_ids)
+    return result
 
 
 def _ha_entity_from_event(