/**
 * @author Martin Karkowski
 * @email m.karkowski@zema.de
 * @create date 2020-11-04 17:36:04
 * @modify date 2021-03-01 17:20:03
 * @desc [description]
 */

import { EventEmitter } from "events";
import * as io from "socket.io";
import { connect } from "socket.io-client";
import { getNopeLogger } from "../logger/getLogger";
import { ICommunicationInterface } from "../types/nope/nopeCommunication.interface";
import { Bridge } from "./bridge";
import { DebuggedEventLayer } from "./debugEventLayer";

/**
 * Communication Layer using IO-Sockets.
 *
 * @export
 * @class IoSocketServer
 * @implements {ICommunicationInterface}
 */
//@ts-ignore Ignore the Interface. Its implemented manually
export class IoSocketClient extends Bridge implements ICommunicationInterface {
  protected _socket: io.Server;
  protected _sockets: Set<io.Socket>;

  /**
   * Creates an instance of IoSocketServer.
   * @param {number} port The Port, on which the Server should be hosted
   * @param {Server} [server] A Server shich should be used. (Otherwise a Server is created)
   * @memberof IoSocketServer
   */
  constructor(public uri: string) {
    super(
      "individual",
      "individual",
      false,
      getNopeLogger("io-socket-client", "info")
    );

    // Make shure we use the http before connecting.
    this.uri = this.uri.startsWith("http://") ? this.uri : "http://" + this.uri;

    const _this = this;

    this.connected.getter = (value) => value;
    this.connected.setContent(false);

    this._logger.info("connecting to: " + uri);

    const socket = connect(uri);

    // Add a default Event-Layer
    // Perhaps that can be removed.
    this.addLayer(
      new DebuggedEventLayer(
        new EventEmitter(),
        "individual",
        "individual",
        getNopeLogger("io-socket-server-internal")
      ),
      false,
      true
    );
    this.addLayer(
      new DebuggedEventLayer(socket as any, "individual", "individual", this._logger)
    );

    socket.on("connect", (...args) => {
      // Element is connected
      _this._logger.info("connected");
      _this.connected.setContent(true);
    });
  
    socket.on("disconnect", () => {
      // Connection Lost.
      _this._logger.error("Connection lost!");
      _this.connected.setContent(false);
    });
  }
}