FunctionProject/website/pages/admin/index.js

import Link from 'next/link';
import { Fragment, useState } from 'react';
import Cookies from "universal-cookie";
import HeadTag from '../../components/HeadTag';
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { faTimes } from '@fortawesome/free-solid-svg-icons';
import Modal from '../../components/Modal';
import FunctionsList from '../../components/FunctionsList/FunctionsList';
import AddEditFunction from '../../components/AddEditFunction';
import redirect from '../../utils/redirect';
import '../../public/css/pages/admin.css';

const Admin = (props) => {

    const [isOpen, setIsOpen]         = useState(false);

    const toggleModal = () => setIsOpen(!isOpen);

    if (!props.user.isAdmin && typeof window != 'undefined') {
        return redirect({}, '/404');
    }

    return (
        <Fragment>
            <HeadTag title="Admin - FunctionProject" description="Page d'administration de FunctionProject." />

            {/* Création d'une fonction */}
            {(isOpen) ?
                    <Modal toggleModal={toggleModal}>
                        <div className="Admin__Modal__container container-fluid">
                            <div className="Admin__Modal__row row">
                                <div className="col-24">
                                    <div className="Admin__Modal-top-container row">
                                        <div className="col-24">
                                            <span onClick={toggleModal} style={{ cursor: 'pointer', position: 'absolute', left: 0 }}>
                                                <FontAwesomeIcon icon={faTimes} style={{ width: '1.5rem', color: 'red' }} />
                                            </span>
                                            <h2 className="text-center">Crée une nouvelle fonction</h2>
                                        </div>
                                    </div>
                                </div>

                                <div className="col-24">
                                    <AddEditFunction defaultInputState={{ type: 'form' }} { ...props } />
                                </div>
                            </div>
                        </div>
                    </Modal>

                :

                    <FunctionsList isAdmin token={props.user.token}>
                        <div className="col-24">
                            <h1 className="Functions__title">Administration</h1>
                            <button onClick={toggleModal} style={{ margin: '0 0 40px 0' }} className="btn btn-dark">Crée une nouvelle fonction</button>
                            <Link href={"/admin/manageCategories"}>
                                <button style={{ margin: '0 0 0 20px' }} className="btn btn-dark">Gérer les catégories</button>
                            </Link>
                        </div>
                    </FunctionsList>
            }
        </Fragment>
    );
}

export async function getServerSideProps({ req }) {
    const cookies = new Cookies(req.headers.cookie);
    return {
        props: { 
            user: { ...cookies.get('user') }
        }
    };
}

export default Admin;