api: refactor ccujack state keeping

api/src/dooris_api/ccujack.py

@@ -55,13 +55,17 @@ class CCUValue(BaseModel):
     v: Any
 
 
+LockData = List[Tuple[CCUDeviceInfo, List[Tuple[CCUChannelInfo, List[CCUParamInfo]]]]]
+
 class CCUJackClient:
     base_uri: str
+    locks: LockData
     
     def __init__(self, base_uri: str, auth: BasicAuth):
         self.http = ClientSession(base_url=base_uri, auth=auth, raise_for_status=True, connector=TCPConnector(ssl=False))
+        self.locks = None
 
-    async def find_locks(self) -> List[Tuple[CCUDeviceInfo, List[Tuple[CCUChannelInfo, List[CCUParamInfo]]]]]:
+    async def find_locks(self):
         logger.debug("Inspecting lock devices present in CCUJack")
         async with self.http.get("/device") as resp:
             devices = CCUDeviceList.model_validate(await resp.json())
@@ -72,7 +76,7 @@ class CCUJackClient:
                 if i.rel == "device"
             ])
             
-            return [
+            self.locks = [
                 i
                 for i in device_infos
                 if i[0].type == DEVICE_TYPE_LOCK