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'use strict';
const Twilio = require('twilio');
const internals = {};
internals.kMenuTimeout = 10; // timeout in seconds
internals.kMenuDigits = 1; // number of digits in the menu
internals.kContentType = 'application/xml'; // The content type used to respond
internals.kMenuLanguage = 'es-mx'; // the language to use
internals.kTimeoutMessage = 'Oh... está bien. Adios!';
internals.kMainMenuRoute = '/menus/main';
internals.kRecordingMenuRoute = '/menus/recording';
internals.kRandomMessageRoute = '/recordings/0';
internals.kLeaveMessageRoute = '/recordings';
internals.kMenuMessage = 'Para dejar un mensaje, presiona 1. ' +
'Para escuchar un mensaje al azar, presiona 2. ' +
'Para escuchar un mensaje específico, presioan 3.'; // the message that will be shown
internals.kMenuInvalidResponseMessage = 'No entendí... Volviendo al menu principal.'; // invalid selection message
internals.kMenuOptions = {
leaveMessage: 1,
listenToRandomMessage: 2,
listenToSpecificMessage: 3
}; // the menu options
/**
* Handles the HTTP requests for the main menu
*
* @class MainMenuController
*/
module.exports = internals.MainMenuController = class MainMenuController {
/**
* Serves the menu
*
* @function serveMenu
* @memberof MainMenuController
* @instance
* @return {generator} a koa compatible handler generator function
*/
serveMenu() {
return function * () {
const response = new Twilio.TwimlResponse();
// the action will default to post in the same URL, so no change
// required there.
response.gather({
timeout: internals.kMenuTimeout,
numDigits: internals.kMenuDigits
}, function nestedHandler() {
this.say(internals.kMenuMessage, { language: internals.kMenuLanguage });
}).say(internals.kTimeoutMessage, { language: internals.kMenuLanguage });
this.type = internals.kContentType;
this.body = response.toString();
};
}
/**
* Parses the selected main menu response
*
* @function parseMenuSelection
* @memberof MainMenuController
* @instance
* @return {generator} a koa compatible handler generator function
*/
parseMenuSelection() {
return function * () {
const menuSelection = parseInt(this.request.body.Digits);
const response = new Twilio.TwimlResponse();
if (menuSelection === internals.kMenuOptions.leaveMessage) {
response.redirect(internals.kLeaveMessageRoute, { method: 'GET' });
}
else if (menuSelection === internals.kMenuOptions.listenToRandomMessage) {
response.redirect(internals.kRandomMessageRoute, { method: 'GET' });
}
else if (menuSelection === internals.kMenuOptions.listenToSpecificMessage) {
response.redirect(internals.kRecordingMenuRoute, { method: 'GET' });
}
else {
response.say(internals.kMenuInvalidResponseMessage, { language: internals.kMenuLanguage })
.redirect(internals.kMainMenuRoute, { method: 'GET' });
}
this.type = internals.kContentType;
this.body = response.toString();
};
}
};
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