dyaskur / google-chat-poll

interface Card {

  buildHeader?(): void;

  buildSections(): void;

  buildButtons?(): void;

  buildFooter?(): void;

  make(): chatV1.Schema$CardWithId;

}

export abstract class BaseCard implements Card {

  private id: string = 'cardId';

  private _content: chatV1.Schema$GoogleAppsCardV1Section[] = [];

  protected card: chatV1.Schema$GoogleAppsCardV1Card = {

    sections: this._content,

  };

  abstract buildSections(): void;

  }

  buildMessage(): chatV1.Schema$Message {

    return {cardsV2: [this.make()]};

  }

}