var express = require('express');
var bodyParser = require('body-parser');
var urlencodedParser = bodyParser.urlencoded({ extended: false });
var watson = require('watson-developer-cloud');

var personality_insights = watson.personality_insights({
  username: 'faeb09e0-b24a-4d76-995f-4571edcbecf2',
  password: 'zygyzEKT6JxM',
  version: 'v2'
});

var language_translation = watson.language_translation({
  username: '91591ec3-2602-4b70-987e-287108ca96e3',
  password: 'VNXW4Gn49SMH',
  version: 'v2'
});

var app = express();

// Définition de l'hôte et du port
var host        = process.env.VCAP_APP_HOST || process.env.HOST || 'localhost';
var port        = process.env.VCAP_APP_PORT || process.env.PORT || 8080;


app.get('/', function(req, res) {
    res.render('index.ejs');
})

.post('/', urlencodedParser, function(req, res) {
    if (req.body.message != '') {
        language_translation.translate({ text: req.body.message, source : 'frfr', target: 'enus' },
            function (err, englishMessage) {
                personality_insights.profile({ text: englishMessage.translation }, function (err, personality) {
                    res.render('index.ejs', {
                        'personality': JSON.stringify(personality, null, 2 ),
                        'translation': JSON.stringify(englishMessage)
                    });
                });
            });
    }
})

.listen(port, host);