funnytranslations.js

/* eslint-disable  func-names */
/* eslint quote-props: ["error", "consistent"]*/
/**
 * This sample demonstrates a simple skill built with the Amazon Alexa Skills
 * nodejs skill development kit.
 * This sample supports multiple lauguages. (en-US, en-GB, de-DE).
 * The Intent Schema, Custom Slots and Sample Utterances for this skill, as well
 * as testing instructions are located at https://github.com/alexa/skill-sample-nodejs-fact
 **/

'use strict';
const Alexa = require('alexa-sdk');
const http = require('http');
//=========================================================================================================================================
//TODO: The items below this comment need your attention.
//=========================================================================================================================================

//Replace with your app ID (OPTIONAL).  You can find this value at the top of your skill's page on http://developer.amazon.com.
//Make sure to enclose your value in quotes, like this: const APP_ID = 'amzn1.ask.skill.bb4045e6-b3e8-4133-b650-72923c5980f1';
const APP_ID = 'amzn1.ask.skill.09f4a640-8a03-4185-b2c3-ccdc05ef1a6d';

const SKILL_NAME = 'Funny Translations';
const GET_HERO_MESSAGE = "Here's your hero: ";
const HELP_MESSAGE = 'You can say translate followed by a sentence to translate, or, you can say exit... What can I help you with?';
const HELP_REPROMPT = 'What can I help you with?';
const STOP_MESSAGE = 'Enjoy the day...Goodbye!';
const MORE_MESSAGE = 'Do you want more?'
const PAUSE = '<break time="0.3s" />'
const WHISPER = '<amazon:effect name="whispered"/>'
const PLING = "<audio src='https://s3.amazonaws.com/ask-soundlibrary/cartoon/amzn_sfx_boing_long_1x_01.mp3'/>"
const WELCOME_MESSAGE = "Hello" + PAUSE +", Welcome to funny translations, please choose the translations to use from the following list," + PAUSE + "YODA" + PAUSE + "PIRATE" + PAUSE + "MINION";
// +-----------------------------------------------+
// |Constants: Service types available             |
// |                                               |
// |- yoda                                         |
// |- pirate                                       |
// |- minion                                       |
// +-----------------------------------------------+
var serviceEndPoints = {
    yodaAPI:'yoda.json',
    pirateAPI:'pirate.json',
    minionAPI:'minion.json'
};
var speechNames = {
    yoda:'yoda',
    pirate:'pirate',
    minion:'minion'
};
var curreEndpoint = serviceEndPoints.minionAPI;
var endpointSpeechName = speechNames.minion
const baseEndpoint = 'http://api.funtranslations.com/translate/'



//=========================================================================================================================================
//Editing anything below this line might break your skill.
//=========================================================================================================================================

const handlers = {
    'LaunchRequest': function () {
          this.emit('WelcomeTheUser');
    },
    'WelcomeTheUser': function () {
        const speechOutput = WELCOME_MESSAGE;
        const more = "Please make a choice";
        this.response.cardRenderer(SKILL_NAME, "Welcome User");
        this.response.speak(speechOutput).listen(more);
        this.emit(':responseReady');
    },
    'SetEndpoint': function () {
        // if (this.event.request.dialogState === 'STARTED') {
        //         let updatedIntent = this.event.request.intent;
        //         this.emit(':delegate', updatedIntent);
      
        // }
        var nameVal = this.event.request.intent.slots.endpoint.value;
        var lowerName = nameVal.toLowerCase()
        console.log("NAMEVAL" + lowerName);
        switch (lowerName) {
          case 'yoda':
              console.log("ENDPOINT SET" + "Yoda");
              curreEndpoint = serviceEndPoints.yodaAPI;
              endpointSpeechName = speechNames.yoda
            break;
          case 'pirate':
              curreEndpoint = serviceEndPoints.pirateAPI;
              endpointSpeechName = speechNames.pirate
              console.log("ENDPOINT SET" + "Pirate");
            break;
          case 'minion':
              curreEndpoint = serviceEndPoints.minionAPI;
              endpointSpeechName = speechNames.minion
              console.log("ENDPOINT SET" + "minion");
            break;
          default:
            break;

        }
        const speechOutput = "OK, I will use your choice" + PAUSE + " Please say translate followed by a sentence to translate";
        const more = "Please say translate followed by a sentence to translate";
        this.response.cardRenderer(SKILL_NAME, "translate");
        this.response.speak(speechOutput).listen(more);
        this.emit(':responseReady');
    },
    'GetTranslation': function () {
        var sentenceVal = this.event.request.intent.slots.sentence.value;
        const query = '/translate/'+curreEndpoint + '?text=' + encodeURIComponent(`${sentenceVal}`);
        console.log("Calling GetTranslation")
                httpGet(query,  (theResult, status) => {
                //console.log("sent     : " + query);
                console.log("received : " + theResult);
                const theFact = theResult;
                const more = "Please say translate followed by a sentence to translate again";                
                const speechOutput = endpointSpeechName + "says" + PAUSE + theFact;
                this.response.cardRenderer(SKILL_NAME, speechOutput);
                if(status){
                    this.response.speak(speechOutput + PAUSE + PLING + more).listen(more);
                }else{
                    this.response.speak(speechOutput + PLING);
                }
                
                this.emit(':responseReady');
            });
        // var sentenceVal = this.event.request.intent.slots.sentence.value;
        // const query = encodeURIComponent(`?text=${sentenceVal}`);
        // console.log("QUERY" + query)
        // const url = baseEndpoint + curreEndpoint + query;
        // var speechOutput = "";
        // console.log("CALLING httpGet")
        // httpGet(query,  (theResult) => {
        //         console.log("sent     : " + query);
        //         console.log("received : " + theResult);
        //         const more = "Please say translate followed by a sentence to translate again";

        //         this.response.cardRenderer(SKILL_NAME, speechOutput);
        //         this.response.speak(speechOutput).listen(more);
        //         this.emit(':responseReady');
        //         //const obj = JSON.parse(theResult);                
        //         // speechOutput += obj.contents.translated;
        //     });
        // // request(url, function (error, response, body) {
        // //       const obj = JSON.parse(body);
        // //       speechOutput += obj.contents.translated;
        // //       console.log(obj.contents.translated);
        // //       console.log('error:', error); // Print the error if one occurred
        // //       console.log('statusCode:', response && response.statusCode); // Print the response status code if a response was received
        // //       console.log('body:', body); // Print the HTML for the Google homepage.
        // //     });


    },
    
    'AMAZON.HelpIntent': function () {
        const speechOutput = HELP_MESSAGE;
        const reprompt = HELP_REPROMPT;

        this.response.speak(speechOutput).listen(reprompt);
        this.emit(':responseReady');
    },
    'AMAZON.CancelIntent': function () {
        this.response.speak(STOP_MESSAGE);
        this.emit(':responseReady');
    },
    'AMAZON.StopIntent': function () {
        this.response.speak(STOP_MESSAGE);
        this.emit(':responseReady');
    },
    'Unhandled': function() {
        this.emit('AMAZON.HelpIntent');
    }
};

exports.handler = function (event, context, callback) {
    const alexa = Alexa.handler(event, context, callback);
    alexa.APP_ID = APP_ID;
    alexa.registerHandlers(handlers);
    alexa.execute();
};

function httpGet(query, callback) {
    var options = {
        host: 'api.funtranslations.com',
        path: query,
        method: 'GET',
    };

    console.log("SET OPTIONS");
    var req = http.request(options, res => {
        res.setEncoding('utf8');
        var responseString = "";
        
        //accept incoming data asynchronously
        res.on('data', chunk => {
            responseString = responseString + chunk;
        });
        
        //return the data when streaming is complete
        res.on('end', () => {
            console.log("RESPONSE STRING" + responseString);
            var obj = JSON.parse(responseString);
            if (obj.error){
                callback("My sources are tired..ask after sometime", false);
            }else{
                 console.log("RESPONSE" + obj.contents.translated);
                callback(obj.contents.translated, true);
            }
           
        });

    });
    req.on('error', function(e) {
            console.log('problem with request: ' + e.message);
    });
    req.end();
}