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// Setup help system
bot.recognizer(new builder.RegExpRecognizer('HelpIntent', /^(help|options)/i));
bot.dialog('helpDialog', function (session, args) {
    switch (args.action) {
        default:
            // args.action is '*:/help' indicating the triggerAction() was matched
            session.endDialog("You can say 'flip a coin' or 'roll dice'.");
            break;
        case 'flipCoinHelp':
            session.endDialog("Say 'heads' or 'tails'.");

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// https://github.com/Microsoft/BotBuilder/blob/master/Node/examples/basics-help/apps.js
function switchTasks(session, args, next, alreadyActiveMessage) {
    // Check to see if we're already active.
    // - We're assuming that we're being called from a triggerAction() some
    //   args.action is the fully qualified dialog ID.
    var stack = session.dialogStack();
    if (builder.Session.findDialogStackEntry(stack, args.action) >= 0) {
        session.send(alreadyActiveMessage);
    } else {
        // Clear stack and switch tasks

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// 01. First example
// https://github.com/Microsoft/BotBuilder/blob/master/Node/examples/basics-logging/app.js
// Install logging middleware
bot.use({
    botbuilder: function (session, next) {
        if (/^log on/i.test(session.message.text)) {
            session.userData.isLogging = true;
            session.send('Logging is now turned on');
        } else if (/^log off/i.test(session.message.text)) {
            session.userData.isLogging = false;

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// https://github.com/Microsoft/BotBuilder/blob/master/Node/examples/basics-loops/app.js
//This Bot demonstrates how to use session.replaceDialog() to create a simple
// loop that dyanmically populates a form.

// Add Q&A dialog
bot.dialog('q&aDialog', [
    function (session, args) {
        // Save previous state (create on first call)
        session.dialogData.index = args ? args.index : 0;
        session.dialogData.form = args ? args.form : {};

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// https://github.com/Microsoft/BotBuilder/blob/master/Node/examples/basics-menus/app.js
//This Bot demonstrates how to create a simple menu for a bot. We've also added a
//reloadAction() to the menus dialog which lets you return to the menu from any 
//child dialog by simply saying "menu" or "back". 

bot.dialog('rootMenu', [
    function (session) {
        builder.Prompts.choice(session, "Choose an option:", 'Flip A Coin|Roll Dice|Magic 8-Ball|Quit');
    },
    function (session, results) {

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// https://github.com/Microsoft/BotBuilder-Samples/tree/master/Node/demo-ContosoFlowers

Bot Libraries for Creating Reusable Dialogs
Libraries of reusable parts can be developed by creating a new Library instance and adding dialogs just as you would to a bot. 
Your library should have a unique name that corresponds to either your libraries website or NPM module name. 
Bots can then reuse your library by simply adding your parts Library instance to their bot using UniversalBot.library().
To invoke dialogs within the bot, we use session.beginDialog() with a fully qualified dialog id in the form of ':'.

E.g.: To start the shopping's experience root dialog we use session.beginDialog('shop:/').

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https://github.com/Microsoft/BotBuilder-Samples/tree/master/Node/demo-ContosoFlowers

This is how you could package an email validation:

var EmailRegex = new RegExp(/[a-z0-9!#$%&'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+\/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?/);

var lib = new builder.Library('validators');

lib.dialog('email',
    new builder.IntentDialog()

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var welcomeCard = new builder.HeroCard(session)
    .title('welcome_title')
    .subtitle('welcome_subtitle')
    .images([
        new builder.CardImage(session)
            .url('https://placeholdit.imgix.net/~text?txtsize=56&txt=Contoso%20Flowers&w=640&h=330')
            .alt('contoso_flowers')
    ])
    .buttons([
        builder.CardAction.imBack(session, session.gettext(MainOptions.Shop), MainOptions.Shop),

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'use strict';

// 01. Include required files
require('dotenv-extended').load();
var restify = require('restify'); 
var builder = require('botbuilder');
var rp = require('request-promise');
var azure = require('botbuilder-azure');
var Request = require('tedious').Request;
var Connection = require('tedious').Connection;

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function clearData(session) {
    var name = session.userData.myName;
    var email = session.userData.myEmail;
    session.userData = {};
    session.userData.myName = name;
    session.userData.myEmail = email;
}