colouring-montreal/app/src/frontend/header.js

import React, { Fragment } from 'react';
import { NavLink } from 'react-router-dom';

import Logo from './logo';
import './header.css';

/**
 * Main Header
 */
const Header = (props) => (
    <header className="main-header">
        <nav className="navbar navbar-light navbar-expand-md">
            <Logo />
            <ul className="navbar-nav ml-auto">
                <li className="nav-item">
                    <a className="nav-link" href="https://pages.colouring.london">Hello</a>
                </li>
                <li className="nav-item">
                    <a className="nav-link" href="https://pages.colouring.london/about">More about</a>
                </li>
                <li className="nav-item">
                    <NavLink to="/map/date_year.html" className="nav-link">View Maps</NavLink>
                </li>
                <li className="nav-item">
                    <a className="nav-link" href="https://pages.colouring.london/buildingcategories">Building Categories</a>
                </li>
                <li className="nav-item">
                    <a className="nav-link" href="https://pages.colouring.london/whoisinvolved">Who's Involved?</a>
                </li>
                <li className="nav-item">
                    <a className="nav-link" href="https://discuss.colouring.london">Discuss</a>
                </li>
                {
                    props.user?
                    (
                    <li className="nav-item">
                        <NavLink to="/my-account.html" className="nav-link">My account (Logged in as {props.user.username})</NavLink>
                    </li>
                    ):
                    (
                    <Fragment>
                        <li className="nav-item">
                            <NavLink to="/login.html" className="nav-link">Log in</NavLink>
                        </li>
                        <li className="nav-item">
                            <NavLink to="/sign-up.html" className="nav-link">Sign up</NavLink>
                        </li>
                    </Fragment>
                    )
                }
            </ul>
        </nav>
    </header>
);

export default Header;