var express = require('express');
var router = express.Router();

var User = require('../model/user.js');
var bodyParser = require('body-parser');

var app = express();

var nodemailer = require('nodemailer');

var transporter = nodemailer.createTransport({
    host: 'smtp.mail.ru',
    port: 587,
    secure: false, //
    auth: {
        user: "iorbox@mail.ru", // generated ethereal user
        pass: "usercreation2007"  // generated ethereal password
    }
});

function makePassword() {
    var text = "";
    var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

    for (var i = 0; i < 5; i++)
        text += possible.charAt(Math.floor(Math.random() * possible.length));

    return text;
}

app.use(bodyParser.json());

app.post('/users/auth/', function (req, res, next) {
    User.findOne({ "mail": req.body.mail, "password": req.body.password }, function (err, user) {
        if (err) throw err;
        if (user == undefined) {
            res.send({ "result": "error" })
            res.sendStatus(200)
        } else {
            res.send({ "result": "ok", "_id": user._id, "type": user.type })
        }
    });
})

app.post('/users/create', function (req, res) {
    var password = makePassword()
    var status = new User({ name: req.body.name, mail: req.body.mail, type: req.body.type, phone: req.body.phone, password: password })
    status.save(function (err) {
        if (err) throw err;
    })

    var mailOptions = {
        from: '"IOR Support 👻" <iorbox@mail.ru>',
        to: req.body.mail, // list of receivers
        subject: 'Вы были зарегистрированы в системе IOR', // Subject line
        html: '<b>Добрый день</b><p>Ваш пароль</p><p>' + password + '</p>' // html body
    };

    transporter.sendMail(mailOptions, (error, info) => {
        if (error) {
            return console.log(error);
        }
        console.log('Message sent: %s', info.messageId);
        console.log('Preview URL: %s', nodemailer.getTestMessageUrl(info));
    });

    res.send('CREATED!')
})

app.post('/users/', function (req, res) {
    User.find().exec(function (err, users) {
        if (err) throw err;
        res.send(users)
    });
})

app.post('/users/employee', function (req, res) {
    User.find({ type: "employee" }).exec(function (err, users) {
        if (err) throw err;
        res.send(users)
    });
})

app.post('/users/update', function (req, res) {
    User.findOneAndUpdate({ _id: req.body._id }, { $set: { name: req.body.name, mail: req.body.mail, phone: req.body.phone, new_orders_notification: req.body.new_orders_notification, new_status_notification: req.body.new_status_notification } }, function (err, user) {
        if (err) throw err;

        res.send(user)
    });
})

app.post('/users/delete', function (req, res) {
    User.findOneAndRemove({ _id: req.body._id }, function (err) {
        if (err) throw err;

        res.send("DELETED!")
    });
})

app.post('/users/type', function (req, res) {
    User.findOne({ _id: req.body._id }, function (err, user) {
        if (err) throw err;

        res.send({ "type": user.type })
    });
})

app.post('/user/:id', function (req, res) {
    User.findOne({ _id: req.params.id }).exec(function (err, user) {
        if (err) throw err;
        res.send(user)
    });
})

app.post('/addfavorder/', function (req, res) {
    User.findOne({ _id: req.body._id }).exec(function (err, user) {
        user.favorites.push(req.body.order_id)
        User.findOneAndUpdate({ _id: req.body._id }, { $set: { favorites: user.favorites } }, function (err, user) {
            if (err) throw err;
            res.send(user)
        })
    });
})

app.post('/removefavorder/', function (req, res) {
    User.findOne({ _id: req.body._id }).exec(function (err, user) {

        var index;

        for (var i = 0; i < user.favorites.length; i++) {
            if (user.favorites[i] == req.body.order_id) {
                index = i
            }
        }

        user.favorites.splice(index, 1)

        User.findOneAndUpdate({ _id: req.body._id }, { $set: { favorites: user.favorites } }, function (err, user) {
            if (err) throw err;
            res.send(user)
        })
    });
})

module.exports = app