dialog_bot.py

from botbuilder.core import ActivityHandler, ConversationState, TurnContext, UserState
from botbuilder.dialogs import Dialog
from helpers.dialog_helper import DialogHelper


class DialogBot(ActivityHandler):
    def __init__(
        self,
        conversation_state: ConversationState,
        user_state: UserState,
        dialog: Dialog,
    ):
        super(DialogBot, self).__init__()
        self.conversation_state = conversation_state
        self.user_state = user_state
        self.dialog = dialog

    async def on_turn(self, turn_context: TurnContext) -> None:
        await super().on_turn(turn_context)

        # Save any state changes that might have occurred during the turn.
        await self.conversation_state.save_changes(turn_context)
        await self.user_state.save_changes(turn_context)

    async def on_message_activity(self, turn_context: TurnContext) -> None:
        # Run the Dialog with the new message Activity.
        await DialogHelper.run_dialog(
            self.dialog,
            turn_context,
            self.conversation_state.create_property("DialogState"),
        )