"""
Logging utilities for Wanderlust AI.

This module provides centralized logging configuration and utilities.
"""

import logging
import sys
from typing import Optional


def setup_logging(level: str = "INFO", log_file: Optional[str] = None) -> None:
    """
    Set up logging configuration for the application.
    
    Args:
        level: Logging level (DEBUG, INFO, WARNING, ERROR, CRITICAL)
        log_file: Optional log file path
    """
    # Convert string level to logging constant
    numeric_level = getattr(logging, level.upper(), logging.INFO)
    
    # Create formatter
    formatter = logging.Formatter(
        '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
    )
    
    # Set up console handler
    console_handler = logging.StreamHandler(sys.stdout)
    console_handler.setFormatter(formatter)
    
    # Set up root logger
    root_logger = logging.getLogger()
    root_logger.setLevel(numeric_level)
    root_logger.addHandler(console_handler)
    
    # Add file handler if specified
    if log_file:
        file_handler = logging.FileHandler(log_file)
        file_handler.setFormatter(formatter)
        root_logger.addHandler(file_handler)
    
    # Set specific logger levels for noisy libraries
    logging.getLogger('urllib3').setLevel(logging.WARNING)
    logging.getLogger('requests').setLevel(logging.WARNING)


def get_logger(name: str) -> logging.Logger:
    """
    Get a logger instance for the given name.
    
    Args:
        name: Logger name (usually __name__)
        
    Returns:
        Logger instance
    """
    return logging.getLogger(name)