fix service

app/dialogflow/services/dialog_service.py

@@ -1,4 +1,4 @@
-from datetime import datetime
+from datetime import datetime, timedelta
 
 from common.external.external_api import api
 
@@ -7,7 +7,8 @@ class DialogService:
     def to_datetime_from_Dialogflow(time: dict):
         date_time = datetime(int(time["year"]), int(time["month"]), int(time["day"]))
         return date_time
-
+    
+    @staticmethod
     def process_dates_to_timestamp(from_time: datetime = None, to_time: datetime = None):
         if to_time is None and from_time is not None:
             to_time = from_time.replace(hour=23, minute=59, second=59)
@@ -18,6 +19,8 @@ class DialogService:
             to_time = datetime.combine(today, datetime.max.time()) - timedelta(microseconds=1)
 
         return int(from_time.timestamp()) * 1000 , int(to_time.timestamp()) * 1000
+    
+
     def get_param_from_dialogflow(self, body: any):
         session_info = body.get("sessionInfo", {})
         parameters = session_info.get("parameters", {}) if isinstance(session_info.get("parameters"), dict) else {}
@@ -30,6 +33,7 @@ class DialogService:
         raw_time_of_day = parameters.get("time_of_day")
         return raw_departure_city, raw_destination_city, raw_ticket_number, raw_date, raw_time_of_day
 
+    @staticmethod
     async def search_route_ids_from_province(departure_code: str, destination_code: str):
         response = await api.get(f'/metadata/office/routes?DestCode={destination_code}&OriginCode={departure_code}')
         route_ids = []
@@ -37,7 +41,7 @@ class DialogService:
                 route_ids = [route.get("routeId", -1) for route in response]
         return route_ids
 
-
+    @staticmethod
     async def seats_trip(route_id: int, trip_id:int, departure_date: str, departure_time: str, kind: str):
         try:
             params = {