"""Main bot module."""
import telebot
from config import Config
from database import init_db
from handlers.group_handlers import register_group_handlers
from handlers.private_handlers import register_private_handlers
from handlers.command_handlers import register_command_handlers


def create_bot() -> telebot.TeleBot:
    """Create and configure the bot."""
    # Validate configuration
    Config.validate()
    
    # Ensure BOT_TOKEN is not None
    if not Config.BOT_TOKEN:
        raise ValueError("BOT_TOKEN is required")
    
    # Initialize database
    init_db()
    
    # Create bot instance
    bot = telebot.TeleBot(Config.BOT_TOKEN)
    
    # Register all handlers
    register_group_handlers(bot)
    register_private_handlers(bot)
    register_command_handlers(bot)
    
    return bot