"""Logging configuration."""

import logging
import sys
from typing import Optional


def setup_logging(log_level: str = "INFO") -> None:
    """
    Configure logging for the application.

    Args:
        log_level: Logging level (DEBUG, INFO, WARNING, ERROR, CRITICAL)
    """
    # Convert string level to logging constant
    numeric_level = getattr(logging, log_level.upper(), logging.INFO)

    # Configure root logger
    logging.basicConfig(
        level=numeric_level,
        format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
        datefmt="%Y-%m-%d %H:%M:%S",
        handlers=[
            logging.StreamHandler(sys.stdout)
        ]
    )

    # Set aiogram logger level
    logging.getLogger("aiogram").setLevel(numeric_level)

    # Reduce verbosity of some libraries
    logging.getLogger("apscheduler").setLevel(logging.WARNING)
    logging.getLogger("asyncio").setLevel(logging.WARNING)


def get_logger(name: str) -> logging.Logger:
    """
    Get a logger instance.

    Args:
        name: Logger name (usually __name__)

    Returns:
        Logger instance
    """
    return logging.getLogger(name)