from typing import Callable, Dict, List
import threading

class EventDispatcher:
    """Central event dispatcher for registering and firing events."""
    _listeners: Dict[str, List[Callable]] = {}
    _lock = threading.Lock()

    @classmethod
    def register(cls, event_name: str, func: Callable):
        """Register a listener for a specific event."""
        with cls._lock:
            cls._listeners.setdefault(event_name, []).append(func)

    @classmethod
    def dispatch(cls, event_name: str, *args, **kwargs):
        """Dispatch an event to all registered listeners."""
        with cls._lock:
            listeners = list(cls._listeners.get(event_name, []))
        for listener in listeners:
            try:
                listener(*args, **kwargs)
            except Exception as e:
                # Optionally log the exception
                pass

def listen_event(event_name: str):
    """Decorator to register a function as an event listener."""
    def decorator(func: Callable):
        EventDispatcher.register(event_name, func)
        return func
    return decorator