var express = require("express");
var alexa = require("alexa-app");

var PORT = process.env.port || 5000;
var app = express();

// ALWAYS setup the alexa app and attach it to express before anything else.
var alexaApp = new alexa.app("step1");

alexaApp.express({
  expressApp: app,

  // verifies requests come from amazon alexa. Must be enabled for production.
  // You can disable this if you're running a dev environment and want to POST
  // things to test behavior. enabled by default.
  checkCert: false,

  // sets up a GET route when set to true. This is handy for testing in
  // development, but not recommended for production. disabled by default
  debug: true
});

const responseMessages = {
    WELCOME:'We are Saburly. Team of design and build software. We are located in Bosnia and Herzegovina. To ask us about our services, say: what do you do? If you want to know about technologies say: what do you know? If you\'re interested in projects we worked on, say: tell me about your projects. If you want to know about how we approach work, say: tell me about your process. If you are confused, just say: help!',
    PROCESS: 'We collaborate closely with our clients at each step of the developmentprocess. From designing the UX to developing the front-end andarchitecting the back-end.',
    SERVICES: 'We are a team of creative, open minded, skilled and fun loving engineers that ship success every day. Here are the 3 things we can do for you: UX and UI design, web development, and mobile development.',
    TECHNOLOGIES: 'Some of the technologies we use are: html5, react, nodejs, ruby, amazon aws, docker, jenkins, elastic, etc.',
    PROJECTS: 'Some of our projects are: Agritech IoT Solution, real-estate search website, online shop for baby products, students registry for Ministry of Education, etc.',
    WELCOME_REPROMPT: 'For instructions on what you can say, please say: help.',
    HELP: 'To ask us about our services, say: what do you do? If you want to know about technologies say: what do you know? If you\'re interested in projects we worked on, say: tell me about your projects. If you want to know about how we approach work, say: tell me about your process.',
    STOP: 'Goodbye, and stay Saburly.',
    UNKNOWN_PIECE_OF_INFO: 'You can ask us about projects, technologies, services and process'
};

alexaApp.launch(function(request, response) {
  response.say(responseMessages.WELCOME).reprompt(responseMessages.WELCOME_REPROMPT).shouldEndSession(false);
});

alexaApp.intent("AMAZON.HelpIntent", {
    utterances: [],
  },
  function (request, response) {
    response.say(responseMessages.HELP).shouldEndSession(false);
  }
);

alexaApp.intent("AMAZON.StopIntent", {
    utterances: [],
  },
  function (request, response) {
    response.say(responseMessages.STOP);
  }
);

alexaApp.intent("AMAZON.CancelIntent", {
    utterances: [],
  },
  function (request, response) {
    response.say(responseMessages.STOP);
  }
);

// alexaApp.intent("GetProcessIntent", {
//     "utterances": [
//       "tell me about your process",
//       "what is your process",
//       "explain your process",
//       "process",
//       "talk about your process"
//     ]
//   },
//   function(request, response) {
//     response.say(responseMessages.PROCESS).shouldEndSession(false);
//   }
// );

alexaApp.intent("GetInfoIntent", {
  "utterances": []
  },
  function(request, response) {
    switch(request.slot("InfoSlot")) {
      case "process":
        response.say(responseMessages.PROCESS).shouldEndSession(false);
        break;
      case "services":
        response.say(responseMessages.SERVICES).shouldEndSession(false);
        break;
      case "technologies":
        response.say(responseMessages.TECHNOLOGIES).shouldEndSession(false);
        break;
      case "projects":
        response.say(responseMessages.PROJECTS).shouldEndSession(false);
        break
      default:
        response.say(responseMessages.UNKNOWN_PIECE_OF_INFO).shouldEndSession(false);
    }
  }
);

alexaApp.intent("WhatIntent", {
  "utterances": []
  },
  function(request, response) {
    switch(request.slot("ActionSlot")) {
      case "do":
        response.say(responseMessages.SERVICES).shouldEndSession(false);
        break;
      case "know":
        response.say(responseMessages.TECHNOLOGIES).shouldEndSession(false);
        break
      default:
        response.say(responseMessages.UNKNOWN_PIECE_OF_INFO).shouldEndSession(false);
    }
  }
);
// alexaApp.intent("GetTechnologiesIntent", {
//     "utterances": [
//       "what technologies do you know",
//       "what technologies do you use",
//       "what technologies do you work with",
//       "technologies",
//       "talk about your technologies"
//     ]
//   },
//   function(request, response) {
//     response.say(responseMessages.TECHNOLOGIES).shouldEndSession(false);
//   }
// );

// alexaApp.intent("GetServicesIntent", {
//     "utterances": [
//       "what do you do",
//       "what services do you offer",
//       "what are your services",
//       "tell me something about your services",
//       "i want to know about your services",
//       "services",
//       "talk about your services"
//     ]
//   },
//   function(request, response) {
//     response.say(responseMessages.SERVICES).shouldEndSession(false);
//   }
// );

// alexaApp.intent("GetProjectsIntent", {
//     "utterances": [
//       "tell me about projects",
//       "say something about your project",
//       "what are your projects",
//       "projects",
//       "talk about your projects"
//     ]
//   },
//   function(request, response) {
//     response.say(responseMessages.PROJECTS).shouldEndSession(false);
//   }
// );

app.listen(PORT);
console.log("Listening on port " + PORT + ", try http://localhost:" + PORT + "/step1");