dyaskur / google-chat-poll

import {chat_v1 as chatV1} from 'googleapis/build/src/apis/chat/v1';

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 createButton(

    text: string, action: string, interaction: string | undefined = undefined,

    parameters = []): chatV1.Schema$GoogleAppsCardV1Button {

    const button: chatV1.Schema$GoogleAppsCardV1Button = {

      text,

      'onClick': {

        'action': {

          'function': action,

        },

      },

    };

    interaction && (button.onClick!.action!.interaction = interaction);

    parameters.length && (button.onClick!.action!.parameters = parameters);

    return button;

  }

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

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

  }

  abstract buildSections(): void;

  abstract create(): chatV1.Schema$GoogleAppsCardV1Card;

  createCardWithId(): chatV1.Schema$CardWithId {

    return {

      'cardId': this.id,

      'card': this.create(),

    };

  }

  createMessage(): chatV1.Schema$Message {

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

  }

}