import type { EventEmitter } from 'events';

interface Listener<T> {
  (data: T): void;
}

export const emit = <T>(emitter: EventEmitter, eventName: string, data: T) =>
  emitter.emit(eventName, data);

export const on = <T>(
  emitter: EventEmitter,
  eventName: string,
  listener: Listener<T>
) => {
  emitter.on(eventName, listener);
  return () => {
    emitter.off(eventName, listener);
  };
};