upd get_callable_str async

bot/handlers/start.py

@@ -8,6 +8,7 @@ from sqlmodel.ext.asyncio.session import AsyncSession
 from ...main import QBotApp
 from ...model.settings import Settings
 from ...model.language import LanguageBase
+from ...model.user import UserBase
 from ...utils.main import clear_state
 
 
@@ -16,9 +17,24 @@ router = Router()
 
 
 @router.message(CommandStart())
-async def start(
-    message: Message, db_session: AsyncSession, app: QBotApp, state: FSMContext
-):
+async def start(message: Message, **kwargs):
+    app: QBotApp = kwargs["app"]
+
+    if app.start_handler:
+        await app.start_handler(
+            default_start_handler, message, **kwargs
+        )
+    else:
+        await default_start_handler(message, **kwargs)
+
+
+async def default_start_handler[UserType: UserBase](
+    message: Message,
+    db_session: AsyncSession,
+    app: QBotApp,
+    state: FSMContext,
+    **kwargs,
+) -> tuple[UserType, bool]:
     state_data = await state.get_data()
     clear_state(state_data=state_data, clear_nav=True)
 
@@ -27,6 +43,7 @@ async def start(
     user = await User.get(session=db_session, id=message.from_user.id)
 
     if not user:
+        is_new = True
         msg_text = (await Settings.get(Settings.APP_STRINGS_WELCOME_P_NAME)).format(
             name=message.from_user.full_name
         )
@@ -61,6 +78,7 @@ async def start(
             return
 
     else:
+        is_new = False
         if user.is_active:
             msg_text = (
                 await Settings.get(Settings.APP_STRINGS_GREETING_P_NAME)
@@ -71,3 +89,5 @@ async def start(
             ).format(name=user.name)
 
     await message.answer(msg_text)
+
+    return user, is_new