/**
 * @author Martin Karkowski
 * @email m.karkowski@zema.de
 * @create date 2020-11-06 08:52:48
 * @modify date 2020-11-11 14:49:28
 * @desc [description]
 */

import { getSingleton } from "../helpers/singletonMethod";
import { NopeGenericModule } from "../module/GenericModule";
import { NopeObservable } from "../observables/nopeObservable";
import { INopeRpcDispatcherOptions } from "../types/nope/nopeCommunication.interface";
import { INopeDispatcher } from "../types/nope/nopeDispatcher.interface";
import { nopeDispatcher } from "./nopeDispatcher";

/**
 * Function to extract a Singleton Dispatcher
 * @param options The provided options for the Dispatcher
 */
export function getDispatcher(options: INopeRpcDispatcherOptions) {

  const container = getSingleton('nopeBackendDispatcher.instance', () => {

    const dispatcher = new nopeDispatcher(options, () => new NopeObservable());

    // Register a default instance generator:
    // Defaultly generate a NopeGenericModule
    dispatcher.registerInternalInstanceGenerator('*', async (dispather, description) => {
      const mod = new NopeGenericModule(dispather, () => new NopeObservable());
      await mod.fromDescription(description, 'overwrite');
      // await mod.init();
      return mod;
    });

    // Return the Dispathcer
    return dispatcher as INopeDispatcher;
  });

  return container.instance
}