/**
 * @author Martin Karkowski
 * @email m.karkowski@zema.de
 * @create date 2021-03-01 15:05:09
 * @modify date 2021-03-01 17:42:12
 * @desc [description]
 */
import { EventEmitter } from "events";
import { getNopeLogger } from "../logger/getLogger";
import { ICommunicationInterface, IExternalEventMsg, IRequestTaskMsg, IResponseTaskMsg } from "../types/nope/nopeCommunication.interface";
import { EventLayer, IEmitter } from "./eventLayer";

const METHODS: Array<keyof ICommunicationInterface> = [
  "onAurevoir",
  "onBonjour",
  "onNewInstanceGeneratorsAvailable",
  "onNewInstancesAvailable",
  "onNewObservablesAvailable",
  "onNewServicesAvailable",
  "onTaskCancelation",
];

export class DebuggedEventLayer extends EventLayer {
  constructor(
    _emitter: IEmitter = new EventEmitter(),
    subscriptionMode: "individual" | "generic" = "individual",
    resultSharing: "individual" | "generic" = "individual",
    _logger = getNopeLogger("debug-layer", "info")
  ) {
    super(_emitter,subscriptionMode,resultSharing,_logger);

    const _this = this;

    // We Subscribe to the defined methods, we want to listen.
    for (const method of METHODS){
      this[method as any]((data) => {
        if (_this._logger){
          _this._logger.debug(method,data);
        }
      });
    }
  }

  async onEvent(
    event: string,
    cb: (data: IExternalEventMsg) => void
  ): Promise<void> {
    this._on("event_" + event, cb);
    if (this._logger){
      const _this = this;
      this._on("event_" + event, (data) => {
        _this._logger.debug("received event on", event, data);
      });
    }    
  }

  async onRpcRequest(
    name: string,
    cb: (data: IRequestTaskMsg) => void
  ): Promise<void> {
    this._on(name, cb);
    if (this._logger){
      const _this = this;
      this._on(name, (data) => {
        _this._logger.debug("received rpc request",name, data);
      });
    }  
  }

  async onRpcResponse(
    name: string,
    cb: (result: IResponseTaskMsg) => void
  ): Promise<void> {
    this._on(name, cb);
    if (this._logger){
      const _this = this;
      this._on(name, (data) => {
        _this._logger.debug("received rpc response",name, data);
      });
    }  
  }
}