<div class="row">
    <div class="col-md-12">
        {{#if errorMessage}}
        <div class="alert alertdanger"><strong>Error:</strong> {{errorMessage}}</div>
        {{/if}}
        {{#if successMessage}}
        <div class="alert alert-success"> <strong>Success:</strong> {{successMessage}}</div><a class="btn btn-success pull-right" href="/login">&nbsp;&nbsp;&nbsp;Proceed to Log in&nbsp;&nbsp;&nbsp;</a><br /><br /><br />
        {{else}}
        <form method="post" action="/register">
        <fieldset>
            <legend>Register</legend>
            <div class="col-md-12">
                <div class="form-group">
                    <input class="form-control" id="userName" name="userName" type="text" placeholder="User Name" required />
                </div>
            </div>
            <div class="col-md-12">
                <div class="form-group">
                    <input class="form-control" id="password" name="password" type="password" placeholder="Password" required />
                </div>
            </div>
            <div class="col-md-12">
                <div class="form-group">
                    <input class="form-control" id="password2" name="password2" type="password" placeholder="Confirm Password" required />
                </div>
            </div>
            <div class="col-md-12">
                <div class="form-group">
                    <input class="form-control" id="email" name="email" type="email" placeholder="Email Address" required />
                </div>
            </div>
        </fieldset>
        <input type="submit" class="btn btn-success pull-right" value="Register" />
        </form>
        {{/if}}
    </div>
</div>





module.exports.registerUser = function (userData) {
    return new Promise(function (resolve, reject) {
        if(userData.password !== userData.password2) {
            reject("Passwords do not match.");
        }
        else
        {
            //hash the password
            bcrypt.genSalt(10, function(err, salt) { // Generate a "salt" using 10 rounds
                bcrypt.hash(userData.password, salt, function(err, hash) {
                    if(err) {
                        reject("There was an error encrypting the password.");
                    }
                    else {
                    userData.password = hash;
                    //create new User
                    let newUser = new User(userData);
                    //save the user, if there was an error return it
                    newUser.save((err) => {
                        if(err) {
                            if(err.code === 11000)
                                reject("Username already taken");
                            if(err.code !== 11000)
                                reject("There was an error: " + err);
                        }
                        else {
                            console.log("The User was saved to the web322_a6 schema.");
                            resolve();
                        }
                    });
                    }
                });
            });
        }
    });
};

module.exports.checkUser = function(userData) {
    return new Promise(function (resolve, reject) {
        User.findOne({userName: userData.userName})
        .exec()
        .then((users) => {
            //if array is empty
            if(!users) {
                reject("Unable to find user: " + userData.userName);
            }
            //if passwords dont match
            bcrypt.compare(userData.password, users.password).then((res) => {
                // res === true if it matches and res === false if it does not matc
                if(res === false) {
                    reject("Incorrect Password for user: " + userData.userName);
                }
                //if passwords match
                if(res === true) {
                    //create new login history object to put into users login history
                    var lastLogin = {dateTime: (new Date()).toString(), userAgent: userData.userAgent};
                    users.loginHistory.dateTime = lastLogin.dateTime;
                    users.loginHistory.userName = lastLogin.userAgent;
                    User.update({userName: users.userName},
                    {$set: {loginHistory: users.loginHistory}})
                    .then(() => {
                        resolve(users[0]);
                    })
                    .catch((err) => {
                        reject("There was an error verifying the user: " + err);
                    });
                }
            });

        })
        .catch((err) => {
            console.log(err);
            reject("Unable to find user: ///" + userData.userName);
        });
    });
};