feat: add multi-chat routing and bill-specific dashboard countdown

src/blackout_notifier/clients.py

@@ -17,7 +17,7 @@ class ExternalServiceError(RuntimeError):
 
 
 class Notifier(Protocol):
-    def send(self, text: str) -> None: ...
+    def send(self, chat_id: str, text: str) -> None: ...
 
 
 class SaapaClient:
@@ -88,35 +88,40 @@ class EitaaClient:
     def __init__(
         self,
         token: str,
-        chat_id: str,
         *,
         timeout: float,
         session: requests.Session | None = None,
     ) -> None:
         self._url = f"{EITAAYAR_BASE_URL}/{token}/sendMessage"
-        self._chat_id = chat_id
         self._timeout = timeout
         self._session = session or _retrying_session({"GET"})
 
-    def send(self, text: str) -> None:
+    def send(self, chat_id: str, text: str) -> None:
         try:
             response = self._session.get(
                 self._url,
-                params={"chat_id": self._chat_id, "text": text},
+                params={"chat_id": chat_id, "text": text},
                 timeout=self._timeout,
             )
         except requests.RequestException as error:
-            raise ExternalServiceError(f"Eitaa request failed: {error}") from error
+            raise ExternalServiceError(
+                f"Eitaa request failed for chat {chat_id}: {error}"
+            ) from error
         if not response.ok:
-            raise ExternalServiceError(f"Eitaa returned HTTP {response.status_code}")
+            raise ExternalServiceError(
+                f"Eitaa returned HTTP {response.status_code} for chat {chat_id}"
+            )
         try:
             body = response.json()
         except requests.JSONDecodeError as error:
-            raise ExternalServiceError("Eitaa returned invalid JSON") from error
+            raise ExternalServiceError(
+                f"Eitaa returned invalid JSON for chat {chat_id}"
+            ) from error
         if not isinstance(body, dict) or body.get("ok") is not True:
             description = body.get("description") if isinstance(body, dict) else None
             raise ExternalServiceError(
-                f"Eitaa rejected the message: {description or 'unknown error'}"
+                f"Eitaa rejected the message for chat {chat_id}: "
+                f"{description or 'unknown error'}"
             )