"""Logging configuration for RAG system."""
import logging
import sys

def setup_logging(level: str = "INFO") -> None:
    """
    Setup logging configuration.

    Args:
        level: Logging level (DEBUG, INFO, WARNING, ERROR, CRITICAL)
    """
    logging.basicConfig(
        level=getattr(logging, level.upper(), logging.INFO),
        format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
        handlers=[
            logging.StreamHandler(sys.stdout)
        ]
    )

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

    Args:
        name: Logger name (usually __name__)

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