dyaskur / google-chat-poll

interface Card {

  buildHeader?(): void;

  buildSections(): void;

  buildButtons?(): void;

  buildFooter?(): void;

  create(): chatV1.Schema$GoogleAppsCardV1Card;

  createCardWithId(): chatV1.Schema$CardWithId;

  createMessage(): chatV1.Schema$Message;

}

export default abstract class BaseCard implements Card {

  protected id: string = 'cardId';

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

  protected card: chatV1.Schema$GoogleAppsCardV1Card = {

    sections: this._content,

  };

  protected addSectionWidget(widget: chatV1.Schema$GoogleAppsCardV1Widget) {

    this.card.sections!.push({widgets: [widget]});

  }

  abstract buildSections(): void;

  createCardWithId(): chatV1.Schema$CardWithId {

    return {

      'cardId': this.id,

      'card': this.create(),

    };

  }

  createMessage(): chatV1.Schema$Message {

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

  }

}