Google Assistant Story Telling Action - Index

index.js

'use strict';

// Import the Dialogflow module and response creation dependencies
// from the Actions on Google client library.
let _ = require('lodash');

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

// Import the firebase-functions package for deployment.
const functions = require('firebase-functions');

const storiesData = require('./stories');

const audioData = require('./storyAudio');

// Instantiate the Dialogflow client.
const app = dialogflow({debug: true});

// Handle the Dialogflow intent named 'Default Welcome Intent'.
app.intent('Default Welcome Intent', (conv) => {
    let title = `It's Story time... Which story would you like to hear today`;
    getStories(conv, title);
});

// Listing the stories in carousel
app.intent('actions_intent_OPTION', (conv, params, option) => {
  let selectedStory = audioData.find((o) => o.key === option);
  // let selectedStory = audioData.find((o) => o.synonyms.includes(option.toLowerCase()));
  if (selectedStory) {
    if (!conv.surface.capabilities.has('actions.capability.MEDIA_RESPONSE_AUDIO')) {
      conv.ask('Sorry, this device does not support audio playback.');
      return;
    }
    conv.ask(new SimpleResponse(`Here is ${selectedStory.title}`));
    conv.ask(new MediaObject({
      name: `${selectedStory.title}`,
      url: `${selectedStory.audioUrl}`,
      description: `${selectedStory.description}`,
      icon: new Image({
        url: `${selectedStory.imageUrl}`,
        alt: `${selectedStory.imageAlt}`,
      }),
    }));
    conv.ask(new Suggestions(['More Stories', 'Cancel']));
  } else {
    let title = `Sorry I forgot ${selectedStory.title}. Do you want to try this`;
    getStories(conv, title);
  }
});

//Listing the stories in carousel
app.intent('stories intent', (conv, {story}) => {
  // conv.ask(`You have selected ${story}`);
  let selectedStory = audioData.find((o) => o.key === story);
  console.log('story is', story);
  console.log('selectedStory is', selectedStory);
  if (selectedStory) {
    if (!conv.surface.capabilities.has('actions.capability.MEDIA_RESPONSE_AUDIO')) {
      conv.ask('Sorry, this device does not support audio playback.');
      return;
    }
    conv.ask(new SimpleResponse(`Here is ${selectedStory.title}`));
    conv.ask(new MediaObject({
      name: `${selectedStory.title}`,
      url: `${selectedStory.audioUrl}`,
      description: `${selectedStory.description}`,
      icon: new Image({
        url: `${selectedStory.imageUrl}`,
        alt: `${selectedStory.imageAlt}`,
      }),
    }));
     conv.ask(new Suggestions(['More Stories', 'Cancel']));
  } else {
    let title = `Sorry I forgot ${story}. Do you want to try this`;
    getStories(conv, title);
  }
});

//checking the media status
app.intent('actions_intent_MEDIA_STATUS', (conv) => {
  const mediaStatus = conv.arguments.get('MEDIA_STATUS');
  let response = 'Unknown media status received.';
  if (mediaStatus && mediaStatus.status === 'FINISHED') {
    response = 'Hope you enjoyed the Story!';
  }
  conv.ask(response);
  conv.ask('Do you want to hear another Story');
  conv.ask(new Suggestions('Yes', 'No'));
});


//shuffling the stories
const storyCarousel = () => {
  let shuffledStories = _.shuffle(storiesData);
  let filteredStories = {};
  for (let i = 0; i <= 3; i++) {
    filteredStories[shuffledStories[i].key] = shuffledStories[i];
  }
  const carousel = new Carousel({
    items: filteredStories,
  });
  return carousel;
};

// Handle the Dialogflow follow-up intents
app.intent(['actions_intent_MEDIA_STATUS - yes', 'actions_intent_OPTION - more-stories', 'stories intent - more-stories', 'Default Welcome Intent - more stories'], (conv) => {
  conv.ask(`Which story would you like to hear`);
  if (!conv.screen) {
    let shuffledStories = _.shuffle(storiesData);
    let filteredStories = [];
    for (let i = 0; i <= 3; i++) {
      filteredStories.push(shuffledStories[i]);
    }
    conv.ask(`${filteredStories[0].title}, ${filteredStories[1].title}, ${filteredStories[2].title}`);
  }else {
    conv.ask(new Suggestions(['More Stories', 'Cancel']));
    return conv.ask(storyCarousel());
  }
});

//when there is no input for the speaker
app.intent('actions_intent_NO_INPUT', (conv) => {
  // Use the number of reprompts to vary response
  const repromptCount = parseInt(conv.arguments.get('REPROMPT_COUNT'));
  if (repromptCount === 0) {
    conv.ask('Which story would you like to hear');
  } else if (repromptCount === 1) {
    conv.ask(`Please say the story name.`);
  } else if (conv.arguments.get('IS_FINAL_REPROMPT')) {
    conv.close(`Sorry we're having trouble. Let's ` +
      `try this again later. Goodbye.`);
  }
});

//getting the stories for speaker and screen
const getStories = (conv, title) => {
  conv.ask(title);
  if (!conv.screen) {
    let shuffledStories = _.shuffle(storiesData);
    let filteredStories = [];
    for (let i = 0; i <= 3; i++) {
      filteredStories.push(shuffledStories[i]);
    }
    conv.ask(`${filteredStories[0].title}, ${filteredStories[1].title}, ${filteredStories[2].title}`);
  }else {
    conv.ask(new Suggestions(['More Stories', 'Cancel']));
    return conv.ask(storyCarousel());
  }
}


exports.dialogflowFirebaseFulfillment = functions.https.onRequest(app);