from app.settings_cache import SettingsCache
from app.conversation import get_or_create_user, get_open_conversation, get_template_rendered
from app.keyboards.inline import build_main_menu_buttons
from app.fsm import BotState, FSM


async def handle_start(bot, user_data: dict, db, max_api):
    max_user_id = user_data["user_id"]
    first_name = user_data.get("first_name", "")
    last_name = user_data.get("last_name", "")
    username = user_data.get("username", "")

    user = await get_or_create_user(db, max_user_id, first_name, last_name, username)
    await db.flush()

    await SettingsCache.refresh(db)

    open_conv = await get_open_conversation(db, user.id)
    name = SettingsCache.get_assistant_name()

    if open_conv:
        text = await get_template_rendered(db, "greeting_returning",
                                           first_name=user.first_name or first_name,
                                           conv_id=open_conv.id)
        buttons = build_main_menu_buttons()
        await max_api.send_message_with_keyboard(max_user_id, text, buttons, format="markdown")
        FSM.set_state(max_user_id, BotState.IDLE)
        return

    text = await get_template_rendered(db, "greeting", name=name)
    buttons = build_main_menu_buttons()
    await max_api.send_message_with_keyboard(max_user_id, text, buttons, format="markdown")
    FSM.set_state(max_user_id, BotState.IDLE)