Bhavr Delgtn JS Ex3

proto-10~Nicer-Syntax-code.js

'use strict';

var LoginController = {
    errors: [],
    getUser() {
        var user = document.getElementById(
                'login_username'
        ).value;
        console.log('LoginController.getUser - user: ' + user);
        return user;
    },
    getPassword() {
        var pw = document.getElementById(
                'login_password'
        ).value;
        console.log('LoginController.getPassword - pass: ' + pw);
        return pw;
    },
    validateEntry(user, pw) {
        console.log('LoginController.validateEntry - User: ' + user + ' pass: ' + pw);
        user = user || this.getUser();
        pw = pw || this.getPassword();
        if (!(user && pw)) {
            return this.failure(
                'Please enter a username & password!'
            );
        }

        if (pw.length < 5) {
            return this.failure(
                'Password must be 5+ characters!'
            );
        }
        // got here? validated!
        return true;
    },
    showDialog(title, msg) {
        console.log('LoginController.showDialog');
        // display success message to user in dialog
        alert(title + ': ' + msg);
    },
    failure(err) {
        console.log('LoginController.failure');
        this.errors.push(err);
        this.showDialog('Error', 'Login invalid: ' + err);
    }
};

var AuthController = {
    errors: [],
    checkAuth() {
        console.log('AuthController.checkAuth');
        var user = this.getUser();
        var pw = this.getPassword();

        if (this.validateEntry(user, pw)) {
            this.server('/check-auth', {
                user: user,
                pw: pw
            })
                    .then(this.accepted.bind(this))
                    .catch(this.rejected.bind(this));
        }
    },
    server(url, data) {
        console.log('AuthController.server - url: ' + url + ' data: ' + JSON.stringify(data));
//            return $.ajax({
//                url: url,
//                data: data
//            });
        if (data.user === 'Joe' && data.pw === 'Password') {
            return Promise.resolve('Welcome ' + data.user + '!');
        }

        return Promise.reject('Bad username or password');
    },
    accepted(msg) {
        console.log('AuthController.accepted');
        this.showDialog('Success', msg);
    },
    rejected(err) {
        console.log('AuthController.rejected - err: ' + err);
        this.failure('Auth Failed: ' + err);
    }
};

// Link `AuthController` to delegate to `LoginController`
Object.setPrototypeOf(AuthController, LoginController);