Simplify and caption

src/lib/homeassistant.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python3
 import json
-import time
-from urllib.error import URLError
-from urllib.request import Request, urlopen
+from urllib.request import Request
 
-RETRY_DELAYS = (3, 10)
+from net import urlopen_with_retry
 
 
 class HomeAssistantClient:
@@ -12,26 +10,14 @@ class HomeAssistantClient:
         self.base_url = base_url.rstrip("/")
         self.token = token
 
-    def get_state(self, entity_id: str) -> dict:
-        url = f"{self.base_url}/api/states/{entity_id}"
-        req = Request(url, headers={
-            "Authorization": f"Bearer {self.token}",
-            "Content-Type": "application/json",
-        })
-        last_err: Exception | None = None
-        for attempt in range(len(RETRY_DELAYS) + 1):
-            try:
-                with urlopen(req, timeout=30) as resp:
-                    return json.loads(resp.read().decode())
-            except (URLError, TimeoutError) as e:
-                last_err = e
-                if attempt < len(RETRY_DELAYS):
-                    time.sleep(RETRY_DELAYS[attempt])
-        raise last_err
-
     def is_person_home(self, entity_id: str) -> bool:
+        req = Request(
+            f"{self.base_url}/api/states/{entity_id}",
+            headers={"Authorization": f"Bearer {self.token}"},
+        )
         try:
-            return self.get_state(entity_id).get("state") == "home"
+            with urlopen_with_retry(req, timeout=30) as resp:
+                return json.loads(resp.read().decode()).get("state") == "home"
         except Exception as e:
             print(f"Failed to check {entity_id}: {e}")
             return False