index-01.js

// author: Gary A. Stafford
// site: https://programmaticponderings.com
// license: MIT License

'use strict';

/* CONSTANTS */

const {
    dialogflow,
    Suggestions,
    BasicCard,
    SimpleResponse,
    Image,
} = require('actions-on-google');

const functions = require('firebase-functions');
const Datastore = require('@google-cloud/datastore');
const datastore = new Datastore({});

const app = dialogflow({debug: true});

app.middleware(conv => {
    conv.hasScreen =
        conv.surface.capabilities.has('actions.capability.SCREEN_OUTPUT');
    conv.hasAudioPlayback =
        conv.surface.capabilities.has('actions.capability.AUDIO_OUTPUT');
});

const IMAGE_BUCKET = process.env.IMAGE_BUCKET;

const SUGGESTION_1 = 'tell me a random fact';
const SUGGESTION_2 = 'help';
const SUGGESTION_3 = 'cancel';