from win10toast import ToastNotifier
import asyncio
from typing import Dict, Any

async def show_notification(args: Dict[str, Any]) -> Dict[str, Any]:
    """
    Displays a system notification in the Windows system tray (bottom-right corner).
    Args:
        args: Dictionary containing 'title' (str), 'message' (str), and optional 'duration' (int, in seconds).
    Returns:
        Dictionary with status message and input arguments.
    Raises:
        ValueError: If required 'title' or 'message' arguments are missing.
        OSError: If the notification fails to display.
    """
    try:
        # Check for required arguments
        title = args.get('title')
        message = args.get('message')
        if not title or not message:
            raise ValueError("Both 'title' and 'message' are required in args")

        # Optional duration (default to 5 seconds)
        duration = args.get('duration', 5)
        if not isinstance(duration, int) or duration < 1:
            raise ValueError("'duration' must be a positive integer")

        # Initialize the notifier
        toaster = ToastNotifier()

        # Show notification (run in a separate thread to avoid blocking)
        await asyncio.get_event_loop().run_in_executor(
            None,
            lambda: toaster.show_toast(
                title=title,
                msg=message,
                duration=duration,
                threaded=True
            )
        )

        return {"message": "Notification displayed successfully", "args": args}

    except Exception as e:
        raise OSError(f"Error displaying notification: {str(e)}")