git.r.bdr.sh - rbdr/dead-drop/blob - lib/controllers/main_menu.js

   1 'use strict';
   2
   3 const Twilio = require('twilio');
   4
   5 const internals = {};
   6
   7 internals.kMenuTimeout = 10; // timeout in seconds
   8 internals.kMenuDigits = 1; // number of digits in the menu
   9 internals.kContentType = 'application/xml'; // The content type used to respond
  10 internals.kMenuLanguage = 'es-mx'; // the language to use
  11 internals.kTimeoutMessage = 'Oh... está bien. Adios!';
  12 internals.kMainMenuRoute = '/menus/main';
  13 internals.kRecordingMenuRoute = '/menus/recording';
  14 internals.kRandomMessageRoute = '/recordings/0';
  15 internals.kLeaveMessageRoute = '/recordings';
  16 internals.kMenuMessage = 'Para dejar un mensaje, presiona 1. ' +
  17                          'Para escuchar un mensaje al azar, presiona 2. ' +
  18                          'Para escuchar un mensaje específico, presioan 3.'; // the message that will be shown
  19 internals.kMenuInvalidResponseMessage = 'No entendí... Volviendo al menu principal.'; // invalid selection message
  20 internals.kMenuOptions = {
  21   leaveMessage: 1,
  22   listenToRandomMessage: 2,
  23   listenToSpecificMessage: 3
  24 }; // the menu options
  25
  26 /**
  27  * Handles the HTTP requests for the main menu
  28  *
  29  * @class MainMenuController
  30  */
  31 module.exports = internals.MainMenuController = class MainMenuController {
  32
  33   /**
  34    * Serves the menu
  35    *
  36    * @function serveMenu
  37    * @memberof MainMenuController
  38    * @instance
  39    * @return {generator} a koa compatible handler generator function
  40    */
  41   serveMenu() {
  42
  43     return function * () {
  44
  45       const response = new Twilio.TwimlResponse();
  46
  47       // the action will default to post in the same URL, so no change
  48       // required there.
  49       response.gather({
  50         timeout: internals.kMenuTimeout,
  51         numDigits: internals.kMenuDigits
  52       }, function nestedHandler() {
  53
  54         this.say(internals.kMenuMessage, { language: internals.kMenuLanguage });
  55       }).say(internals.kTimeoutMessage, { language: internals.kMenuLanguage });
  56
  57       this.type = internals.kContentType;
  58       this.body = response.toString();
  59     };
  60   }
  61
  62   /**
  63    * Parses the selected main menu response
  64    *
  65    * @function parseMenuSelection
  66    * @memberof MainMenuController
  67    * @instance
  68    * @return {generator} a koa compatible handler generator function
  69    */
  70   parseMenuSelection() {
  71
  72     return function * () {
  73
  74       const menuSelection = parseInt(this.request.body.Digits);
  75
  76       const response = new Twilio.TwimlResponse();
  77
  78       if (menuSelection === internals.kMenuOptions.leaveMessage) {
  79         response.redirect(internals.kLeaveMessageRoute, { method: 'GET' });
  80       }
  81       else if (menuSelection === internals.kMenuOptions.listenToRandomMessage) {
  82         response.redirect(internals.kRandomMessageRoute, { method: 'GET' });
  83       }
  84       else if (menuSelection === internals.kMenuOptions.listenToSpecificMessage) {
  85         response.redirect(internals.kRecordingMenuRoute, { method: 'GET' });
  86       }
  87       else {
  88         response.say(internals.kMenuInvalidResponseMessage, { language: internals.kMenuLanguage })
  89             .redirect(internals.kMainMenuRoute, { method: 'GET' });
  90       }
  91
  92       this.type = internals.kContentType;
  93       this.body = response.toString();
  94     };
  95   }
  96 };