import logging
import os

def setup_logger(name):
    # Get log level from environment or default to INFO
    log_level = os.getenv('LOG_LEVEL', 'INFO')
    
    logger = logging.getLogger(name)
    logger.setLevel(log_level)
    
    if not logger.handlers:
        handler = logging.StreamHandler()
        formatter = logging.Formatter(
            '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
        )
        handler.setFormatter(formatter)
        logger.addHandler(handler)
    
    return logger