app.js

app.js

var express = require('express');
var app = express();
var path = require('path');
require('./chatflow.js').DataTable;
var path = require("path");

const fs = require('fs');
const request = require('request');
const url  = require('url');
const https = require('https');

var bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
app.use(express.static('public'))
var rootCas = require('ssl-root-cas').create();

require('https').globalAgent.options.ca = rootCas;

var html = '';
var newlyAddedTags = '';
var nextMsgId = 0;
var DataTable = path; var prevMsg = path;
 //var prevMsg = DataTable[0][1];

// viewed at http://localhost:8080
app.get('/', function(req, res) {
  var nextMsgId = 0;
    res.sendFile(path.join(__dirname + './public/index.html'));
});

app.get('/dat',function(req, res){
    console.log("inside /dat "+ req );
    var nextMsgId = 0;
    //var prevMsg = DataTable[0][1];
    var  msg = "";
     if (req.method == 'GET') {
        msg = req.query.input1;
        console.log("Inside req method"  +  msg );
        intent = "";
        //console.log("DataTable " + DataTable[0][1]);
        
        //console.log("DataTable " + typeof DataTable);
        if ("text" != DataTable[nextMsgId][2]) {
            //console.log("nextMsgId " + nextMsgId);
            getWitResponse(msg,function(intentVal)
            {
               console.log(intentVal+":::: intentVal"); 
               intent = String(intentVal).toLowerCase();
             if (intent.length > 0 ){
                console.log("Inside  checking intent length method "  +  prevMsg );
                nextMsgId = getNextMsgId(intent);
                console.log("Intent in getNextMsgId " + getNextMsgId);
                prevMsg = DataTable[nextMsgId][1]
            //     if (nextMsgId == 31){
            //         prevMsg = prevMsg+getExtractedValues()
            //     return prevMsg
            //     }
            // else {
            //     return "Couldn't understand <b> "+msg+" </b>, I can help you with your insurance queries"
            // }   
        } 
    });
            
            console.log("outside nested req method"  +  intent );

            //intent = String(getWitResponse(msg)).toLowerCase();
            //console.log("Inside nested req method"  +  intent );
} else if ('text' in DataTable[nextMsgId][2]) {
                intent='text';
            }
        if (nextMsgId == 0) {
            prevMsg=DataTable[0][1];
        }
        console.log("before if cond::: "  +  intent );
        
  }
 });

var getWitResponse= function(msg,cb)
{
    const {Wit, log} = require('node-wit');
    const client = new Wit({accessToken: '7KPQXSZ4NSMMYTCCGWKC37XHLBPO25XA'});
    client.message('Hi', {})
    .then((data) => {
      console.log('Yay, got Wit.ai response: ' + JSON.stringify(data));
    
      const j = JSON.parse(JSON.stringify(data));
      console.log("jis here"+ JSON.stringify(j));
      
      if (JSON.stringify(data).toLowerCase().includes("intent")) {
          console.log("inside if getWitResponse")
          console.log(j['entities']['intent'][0]['value']);
          return cb(j['entities']['intent'][0]['value']);
      } else {
          return '';
      } 
    
    })
    .catch(console.error);
}


// function getWitResponse(msg) {
//     const {Wit, log} = require('node-wit');
//     const client = new Wit({accessToken: '7KPQXSZ4NSMMYTCCGWKC37XHLBPO25XA'});
//     client.message('Hi', {})
//     .then((data) => {
//       console.log('Yay, got Wit.ai response: ' + JSON.stringify(data));
    
//       const j = JSON.parse(JSON.stringify(data));
//       console.log("jis here"+ JSON.stringify(j));
      
//       if (JSON.stringify(data).toLowerCase().includes("intent")) {
//           console.log("inside if getWitResponse")
//           console.log(j['entities']['intent'][0]['value']);
//           return j['entities']['intent'][0]['value'];
//       } else {
//           return '';
//       } 
    
//     })
//     .catch(console.error);
// }
function getNextMsgId(intent) {
    console.log("Inside getNextMsgId method"  +  prevMsg );

  for (var c in DataTable) {
      console.log("1: "+String(c[1]).toLowerCase()+" 2: "+String(c[2]).toLowerCase())
      if (String(prevMsg).toLowerCase() in String(c[1]).toLowerCase() && (intent in String(c[2]).toLowerCase() )) {
          c[4]=msg;
          return c[3];
            return 0;
      }
    }
  }
// function getExtractedValues() {
//   st='';
//   for (c in DataTable) {
//       if (len(String(c[4]))>0) {
//           st=st+str(c[1])+':'+str(c[4])+'\n';
//   return st;
//       }
//   }}



app.listen(8080);