index.js

const EventEmitter2 = require('eventemitter2')

class Plugin extends EventEmitter2 {
  constructor (opts, api, mirror) {
    super()
    if (!mirror) {
      mirror = new Plugin(opts, api, this)
    }
    this.mirror = mirror
  }

  connect () { this._connected = true; this.emit('connect'); return Promise.resolve(null) }
  disconnect () { this._connected = false; this.emit('disconnect'); return Promise.resolve(null) }
  isConnected () { return this._connected }

  sendData (data) { return Promise.resolve(this.mirror._dataHandler ? this.mirror._dataHandler(data) : null) }
  registerDataHandler (handler) { this._dataHandler = handler }
  deregisterDataHandler (handler) { delete this._dataHandler }

  sendMoney (amount) { return Promise.resolve(this.mirror._moneyHandler ? this.mirror._moneyHandler(amount) : null) }
  registerMoneyHandler (handler) { this._moneyHandler = handler }
  deregisterMoneyHandler (handler) { delete this._moneyHandler }
}
Plugin.version = 2
module.exports = Plugin