/*
 * MIT License
 *
 * Copyright (c) 2019 Rémi Van Keisbelck
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

import { Dispatcher, Cmd } from 'tea-cup-fp';

export class Testing<M> {
  private _dispatched: M | undefined;

  public Testing() {}

  public readonly noop: Dispatcher<M> = () => {};

  public get dispatcher(): Dispatcher<M> {
    this._dispatched = undefined;
    return (msg: M) => {
      this._dispatched = msg;
    };
  }

  public get dispatched(): M | undefined {
    return this._dispatched;
  }

  public dispatchFrom(cmd: Cmd<M>): Promise<M> {
    return new Promise<M>((resolve) => {
      const dispatchedMsg = (msg: M) => {
        resolve(msg);
      };
      cmd.execute(dispatchedMsg);
    });
  }
}