export class TopicParser {
  private readonly _type: string
  private _topicArray: string[]
  constructor (topic: string) {
    const topicArray = topic.split('/')
    this._topicArray = topicArray
    this._type = topicArray[1]
  }

  public get topicArray(): string[] {
    return this._topicArray
  }

  public get type (): string {
    return this._type
  }

}

export class MessageTopicParser extends TopicParser {
  constructor(topic: string) {
    super(topic)
  }

  public get messageType(): string {
    return this.topicArray[3]
  }

  public get childDeviceId(): string | undefined {
    return this.topicArray[4]
  }
}