import { EventEmitter } from 'events';

import { BaseManagedFile } from '../file';
import { IEventOptions } from './interfaces';

export abstract class BaseEvent extends BaseManagedFile
{
  /** An event emitter to listen to events. */
  protected readonly emitter: EventEmitter;

  /**
   * Name of [Client]{@link https://discord.js.org/#/docs/main/stable/class/Client},
   * [Raw]{@link https://discord.com/developers/docs/topics/gateway#event-names} or custom events.
   */
  protected readonly name: string;

  constructor (filePath: string, options: IEventOptions)
  {
    super(filePath);

    this.emitter = options.emitter;
    this.name = options.name;
  }

  /** Add a listener to the Client EventEmitter */
  public listen (): void
  {
    this.emitter.on(this.name, this.callback.bind(this));
  }

  /** Remove the registered listener. */
  public remove (): void
  {
    this.emitter.removeListener(this.name, this.callback);
  }

  /** The callback of the event being listened to. */
  protected abstract callback (...args: any[]): Promise<void> | void; // eslint-disable-line @typescript-eslint/no-explicit-any
}