var debug = require('debug');
var error = debug('loginController:error');
var log = debug('loginController:log');

var accessHandler = require('../handlers/accessHandler');

var util = require('../../../utils/jsUtils');

function loginUser(req, res, next) {
    if (!(req.body.email && req.body.password)) {
        var msg = 'invalid parameters';
        error(msg);
        next(new Error(msg));
        return;
    }

    log('loginUser started');

    accessHandler.loginHelper(req.body.email, req.body.password, function (err, userFound) {
        if (err) {
            return next(err);
        }

        // clean incoming login details (so won't get edited)
        req.body.fb_id = null;
        req.body.email = null;
        req.body.password = null;

        res.locals.user = userFound;

        res.send(userFound);
    });
}

function registerUser(req, res, next) {
    log('createNewUser started');

    var handleResponse = function (err, user) {

        if (err) {
            // if fb user exist --> perform login
            if (err.name === 'MongoError' && err.code == 11000) {//TODO  && req.body.fb_id
                return loginUser(req, res, next);
            }
            return next(err);

        } else {
            res.json(user);
        }
    };


    if (req.body.email && req.body.password) {
        accessHandler.createNewNormalUser(req.body.email, req.body.password, handleResponse);
    }
    else {
        var msg = 'invalid parameters';
        error(msg);
        next(new Error(msg));
        return;
    }
}

module.exports =
    {
        login: loginUser,
        registerUser: registerUser,

    };