import logging
import sys
import os

def setup_logger(name='morphguard', level=logging.INFO):
    """
    Setup structured logging for the application.
    """
    logger = logging.getLogger(name)
    logger.setLevel(level)
    
    # Check if handlers exist to avoid duplicates
    if not logger.handlers:
        # Console Handler
        console_handler = logging.StreamHandler(sys.stdout)
        console_handler.setLevel(level)
        console_formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
        console_handler.setFormatter(console_formatter)
        logger.addHandler(console_handler)
        
        # File Handler (Optional, only if logs dir exists or created)
        log_dir = 'logs'
        if os.path.exists(log_dir):
            file_handler = logging.FileHandler(os.path.join(log_dir, 'app.log'))
            file_handler.setLevel(level)
            file_formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
            file_handler.setFormatter(file_formatter)
            logger.addHandler(file_handler)
            
    return logger

# Create global logger instance
logger = setup_logger()