"""Logging configuration."""

import logging
import sys


def setup_logging(logger_name: str = "ML Inference Service") -> logging.Logger:
    """Setup and configure logger."""
    logger = logging.getLogger(logger_name)

    if logger.handlers:
        return logger

    logger.setLevel(logging.INFO)
    handler = logging.StreamHandler(sys.stdout)
    handler.setLevel(logging.INFO)
    formatter = logging.Formatter(
        "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
    )
    handler.setFormatter(formatter)
    logger.addHandler(handler)

    return logger


logger = setup_logging()