//Require
var CLIENT_ID = '338428604923-9taeevtkmulct5l5ebv4l59dm9cuag3k.apps.googleusercontent.com'

var request = require('request');
var bcrypt = require('bcrypt');
var jwtUtils = require('../utils/jwt.utils');
var models  = require('../models');
var asyncLib = require('async');
var server = require('../server')
var stringUtils = require('../utils/string.utils');
var session = require('express-session');
var redisStore = require('connect-redis')(session);

module.exports = {
    loginGoogle: function (req, res) {
        var token = req.headers['token'];

        if(token == null){
            return res.status(400).json({'error' : 'token is null'});
        }


// const {OAuth2Client} = require('google-auth-library');
// const client = new OAuth2Client(CLIENT_ID);
// async function verify() {
//   const ticket = await client.verifyIdToken({
//       idToken: token,
//       audience: CLIENT_ID,  // Specify the CLIENT_ID of the app that accesses the backend
//       // Or, if multiple clients access the backend:
//       //[CLIENT_ID_1, CLIENT_ID_2, CLIENT_ID_3]
//   });
//   const payload = ticket.getPayload();
//   const userid = payload['sub'];
//   // If request specified a G Suite domain:
//   //const domain = payload['hd'];
// }
// verify()
// .then(function (req, res) {

// })
// .catch(console.error);



    request('https://www.googleapis.com/oauth2/v3/tokeninfo?id_token=' + token, function (error, response, body) {
    console.log('error:', error); // Print the error if one occurred
    console.log('statusCode:', response && response.statusCode); // Print the response status code if a response was received
    console.log('body:', body); // Print the HTML for the Google homepage.
    var jsonResponse = JSON.parse(body);


    if (response.statusCode != 200) {
        return res.status(500).json({'error' : 'an error has occured. Please see the console.'});
    }

    if(jsonResponse.iss != 'accounts.google.com' && jsonResponse.iss != 'https://accounts.google.com'){
    console.log('ISS is not one of google');
    return res.status(500).json({'error' : 'please see the console'});
    }

    if(jsonResponse.aud != CLIENT_ID){
        console.log('Error in the aud. This is not like the client id');
        return res.status(500).json({'error' : 'please see the console'});

    }

    var email = jsonResponse.email;
    var username = jsonResponse.name;
    var first_name = jsonResponse.given_name;
    var last_name = jsonResponse.family_name;
    var avatar = jsonResponse.picture;
    var profile = req.body.profile;
    var age = req.body.age;
    var cat = req.body.cat;
    var password = stringUtils.generateString(10);
     //WaterFall

     asyncLib.waterfall([
        function(done) {
            models.User.findOne({
                attributes: ['email'],
                where: {email : email}
            })
            .then(function (userFound) {
                done(null, userFound);
            })
            .catch(function (err) {

                return res.status(500).json({'error' : 'unable to verify user'});

            })
        },
        function(userFound, done) {

            if (!userFound) {

                bcrypt.hash(password, 5, function(err, bcryptedPassword){
                    done(null, userFound, bcryptedPassword);

                });

            } else {
                req.session.key = req.body.email;
                console.log(req.session.key);
                return res.status(201).json({
                'userId': userFound.id,

              });
            }



            },
            function (userFound, bcryptedPassword, done) {

                var newUser = models.User.create({
                    email: email,
                    avatar: avatar,
                    username: username,
                    password: bcryptedPassword,
                    first_name: first_name,
                    last_name: last_name,
                    profile: profile,
                    age: age,
                    cat: cat,
                    isAdmin: 0

                })
                .then(function (newUser) {
                    done(newUser);
                })
                .catch(function (err) {
                    return res.status(500).json({'error' : 'unable to add user'});
                });

            }
    ], function (newUser) {
        // result now equals 'done'
        if (newUser) {
            return res.status(201).json({
                'userId' : newUser.id
            });

        } else {

            return res.status(500).json({'error' : 'unable to add user'});

        }
    });

    console.log(password);



    });
    }
}