"""
File utility functions
"""
from pathlib import Path
from typing import Optional

def ensure_directory_exists(directory: Path):
    """
    Ensure directory exists, create if not
    
    Args:
        directory: Directory path
    """
    directory.mkdir(parents=True, exist_ok=True)

def get_file_size(file_path: Path) -> int:
    """
    Get file size in bytes
    
    Args:
        file_path: File path
        
    Returns:
        File size in bytes
    """
    return file_path.stat().st_size

def file_exists(file_path: Path) -> bool:
    """
    Check if file exists
    
    Args:
        file_path: File path
        
    Returns:
        True if file exists, False otherwise
    """
    return file_path.exists() and file_path.is_file()