from .models import TelegramBot

def get_bot_token(bot_name: str) -> str:
    """
    Retrieve the Telegram bot token by bot name.

    Args:
        bot_name (str): The name of the bot to fetch.

    Returns:
        str: The Telegram bot token.

    Raises:
        ValueError: If no active bot with the given name is found.
    """
    try:
        bot = TelegramBot.objects.get(name=bot_name, is_active=True)
        return bot.token
    except TelegramBot.DoesNotExist:
        raise ValueError(f"No active bot found with the name '{bot_name}'")