/** Map the Events Params Types to Event to be used on Socket.io  */
export type EmptyEventParams = () => void;
export type EventParams<EventParams> = (payload: EventParams) => void;
//With Extra
export type EmptyEventParamsWithExtra<Extra> = (params: Extra) => void;
export type EventParamsWithExtra<EventParams, Extra> = (params: Extra & { payload: EventParams }) => void;

export type SocketParamsToEvents<Event, Extra = undefined> = {
  [EventKey in keyof Event]: Event[EventKey] extends undefined
    ? Extra extends undefined
      ? EmptyEventParams
      : EmptyEventParamsWithExtra<Extra>
    : Extra extends undefined
      ? EventParams<Event[EventKey]>
      : EventParamsWithExtra<Event[EventKey], Extra>;
};