import asyncio
import logging
import os
import sys

from dotenv import load_dotenv

from bot.main_bot import run_bot
from config.settings import get_settings, Settings
from db.database_setup import init_db, init_db_connection


def _resolve_log_level(value: str) -> int:
    if not value:
        return logging.INFO
    if isinstance(value, str):
        normalized = value.strip()
        if not normalized:
            return logging.INFO
        if normalized.isdigit():
            return int(normalized)
        level = getattr(logging, normalized.upper(), None)
        if isinstance(level, int):
            return level
    return logging.INFO


async def main():
    load_dotenv()
    settings = get_settings()

    session_factory = init_db_connection(settings)
    if not session_factory:
        logging.critical(
            "Failed to initialize DB connection and session factory. Exiting.")
        return

    await init_db(settings, session_factory)

    await run_bot(settings)


if __name__ == "__main__":
    load_dotenv()
    logging.basicConfig(
        level=_resolve_log_level(os.getenv("LOG_LEVEL", "INFO")),
        stream=sys.stdout,
        format='%(asctime)s - %(name)s - %(levelname)s - %(message)s')
    try:
        asyncio.run(main())
    except (KeyboardInterrupt, SystemExit):
        logging.info("Bot stopped manually")
    except Exception as e_global:
        logging.critical(f"Global unhandled exception in main: {e_global}",
                         exc_info=True)
        sys.exit(1)