import { EventEmitter } from "events";
import { ICommunicationInterface } from "../dispatcher/nopeDispatcher";
import { getLogger } from "../logger/getLogger";


/**
 * A Communication Layer for the Dispatchers.
 * Here, only a Events are used.
 *
 * @export
 * @class EventLayer
 * @implements {ICommunicationInterface}
 */
export class EventLayer implements ICommunicationInterface {
  off(event: string, cb: (...args: any[]) => void) {
    this._emitter.off(event, cb);
  }

  protected _emitter = new EventEmitter();
  protected _logger = getLogger('info', 'Event-Layer');

  on(event: string, cb: (...args: any[]) => void) {
    // this._logger.debug('subscribed ' + event);
    this._emitter.on(event, cb);
  }

  send(event: string, data: any): void {
    // this._logger.debug('emitting ' + event);
    this._emitter.emit(event, data)
  }
}