Log service call failures

hassws/client.go

@@ -330,5 +330,9 @@ func (c *Client) CallService(msg CallServiceRequest) (CallServiceResponse, error
 		return CallServiceResponse{}, err
 	}
 
+	if resp.Type == MessageTypeResult && !resp.Success {
+		slog.Error("Call service failed", "err", resp.Error)
+	}
+
 	return resp, nil
 }

hassws/message_types.go

@@ -53,7 +53,7 @@ type EventMessage struct {
 type subscribeEventsRequest struct {
 	ID        int         `json:"id"`
 	Type      MessageType `json:"type"`
-	EventType string      `json:"event_type"`
+	EventType string      `json:"event_type,omitempty"`
 }
 
 type subscribeEventsResponse struct {
@@ -79,6 +79,7 @@ type CallServiceResponse struct {
 			ID string `json:"id"`
 		} `json:"context"`
 	} `json:"result"`
+	Error map[string]any `json:"error,omitempty"`
 }
 
 type jsonMessage map[string]any

hassws/server.go

@@ -119,7 +119,7 @@ func (s *Server) listen() {
 				Success: true,
 			})
 		default:
-			panic("[Server]Unknown message type: " + cmd.Type)
+			panic("[Server] Unknown message type: " + cmd.Type)
 		}
 	}
 }