"""
Logging Utility

Configures logging for the application.
"""

import logging
import os
from datetime import datetime


def setup_logger(name: str = 'AzureKeyVaultManager', log_file: str = None, level=logging.INFO):
    """
    Set up and configure a logger.

    Args:
        name: Logger name
        log_file: Optional log file path (defaults to logs/app_{date}.log)
        level: Logging level (default: INFO)

    Returns:
        logging.Logger: Configured logger instance
    """
    logger = logging.getLogger(name)
    logger.setLevel(level)

    # Remove existing handlers
    logger.handlers = []

    # Create formatter
    formatter = logging.Formatter(
        '%(asctime)s - %(name)s - %(levelname)s - %(message)s',
        datefmt='%Y-%m-%d %H:%M:%S'
    )

    # Console handler
    console_handler = logging.StreamHandler()
    console_handler.setLevel(level)
    console_handler.setFormatter(formatter)
    logger.addHandler(console_handler)

    # File handler (optional)
    if log_file:
        # Create logs directory if it doesn't exist
        log_dir = os.path.dirname(log_file)
        if log_dir and not os.path.exists(log_dir):
            os.makedirs(log_dir)

        file_handler = logging.FileHandler(log_file)
        file_handler.setLevel(level)
        file_handler.setFormatter(formatter)
        logger.addHandler(file_handler)
    else:
        # Default log file in logs directory
        log_dir = 'logs'
        if not os.path.exists(log_dir):
            os.makedirs(log_dir)

        log_file = os.path.join(log_dir, f'app_{datetime.now().strftime("%Y%m%d")}.log')
        file_handler = logging.FileHandler(log_file)
        file_handler.setLevel(level)
        file_handler.setFormatter(formatter)
        logger.addHandler(file_handler)

    return logger


# Create default logger instance
logger = setup_logger()