Gérer les retours de livres par l'admin

Reviewed-on: #6

my-library/package-lock.json

@@ -12,6 +12,7 @@
         "@testing-library/jest-dom": "^6.9.1",
         "@testing-library/react": "^16.3.2",
         "@testing-library/user-event": "^13.5.0",
+        "axios": "^1.17.0",
         "react": "^19.2.4",
         "react-dom": "^19.2.4",
         "react-router-dom": "^7.13.1",
@@ -4804,6 +4805,34 @@
         "node": ">=4"
       }
     },
+    "node_modules/axios": {
+      "version": "1.17.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.17.0.tgz",
+      "integrity": "sha512-J8SwNxprqqpbfenehxWYXE7CW+wM1BB4w3+N+g+/Wx40xM4rsLrfPmHHxSWIxJLYDgSY/HqlFPIYb2/S3rxafw==",
+      "license": "MIT",
+      "dependencies": {
+        "follow-redirects": "^1.16.0",
+        "form-data": "^4.0.5",
+        "https-proxy-agent": "^5.0.1",
+        "proxy-from-env": "^2.1.0"
+      }
+    },
+    "node_modules/axios/node_modules/form-data": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.5.tgz",
+      "integrity": "sha512-8RipRLol37bNs2bhoV67fiTEvdTrbMUYcFTiy3+wuuOnUog2QBHCZWXDRijWQfAkhBj2Uf5UnVaiWwA5vdd82w==",
+      "license": "MIT",
+      "dependencies": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "es-set-tostringtag": "^2.1.0",
+        "hasown": "^2.0.2",
+        "mime-types": "^2.1.12"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/axobject-query": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/axobject-query/-/axobject-query-4.1.0.tgz",
@@ -8090,9 +8119,9 @@
       "license": "ISC"
     },
     "node_modules/follow-redirects": {
-      "version": "1.15.11",
-      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.11.tgz",
-      "integrity": "sha512-deG2P0JfjrTxl50XGCDyfI97ZGVCxIpfKYmfyrQ54n5FO/0gfIES8C/Psl6kWVDolizcaaxZJnTS0QSMxvnsBQ==",
+      "version": "1.16.0",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.16.0.tgz",
+      "integrity": "sha512-y5rN/uOsadFT/JfYwhxRS5R7Qce+g3zG97+JrtFZlC9klX/W5hD7iiLzScI4nZqUS7DNUdhPgw4xI8W2LuXlUw==",
       "funding": [
         {
           "type": "individual",
@@ -13456,6 +13485,15 @@
         "node": ">= 0.10"
       }
     },
+    "node_modules/proxy-from-env": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-2.1.0.tgz",
+      "integrity": "sha512-cJ+oHTW1VAEa8cJslgmUZrc+sjRKgAKl3Zyse6+PV38hZe/V6Z14TbCuXcan9F9ghlz4QrFr2c92TNF82UkYHA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/psl": {
       "version": "1.15.0",
       "resolved": "https://registry.npmjs.org/psl/-/psl-1.15.0.tgz",

my-library/package.json

@@ -7,6 +7,7 @@
     "@testing-library/jest-dom": "^6.9.1",
     "@testing-library/react": "^16.3.2",
     "@testing-library/user-event": "^13.5.0",
+    "axios": "^1.17.0",
     "react": "^19.2.4",
     "react-dom": "^19.2.4",
     "react-router-dom": "^7.13.1",

my-library/src/App.jsx

@@ -1,14 +1,46 @@
-import { Routes, Route } from 'react-router-dom';
-import Navbar from './components/Navbar';
+import { Routes, Route, Navigate } from 'react-router-dom';
+import Layout from './components/Layout';
 import Home from './pages/Home';
+import Books from './pages/Books';
+import Orders from './pages/Orders';
+import Profile from './pages/Profile';
+import NotFound from './pages/NotFound';
+import AddBook from './pages/AddBook';
+import BookDetail from './pages/BookDetail';
+import Customers from './pages/Customers';
+import Login from './pages/Login';
+import Reservations from './pages/Reservations';
+import Returns from './pages/Returns';
+import { useAuth } from './context/AuthContext';
+
+function RequireAuth({ children }) {
+  const { user } = useAuth();
+  return user ? children : <Navigate to="/login" replace />;
+}
+
+function RequireAdmin({ children }) {
+  const { user } = useAuth();
+  if (!user) return <Navigate to="/login" replace />;
+  if (user.role !== 'admin') return <Navigate to="/" replace />;
+  return children;
+}
 
 export default function App() {
   return (
-    <>
-      <Navbar />
-      <Routes>
-        <Route path="/" element={<Home />} />
-      </Routes>
-    </>
+    <Routes>
+      <Route path="/login" element={<Login />} />
+      <Route path="/" element={<Layout />}>
+        <Route index element={<Home />} />
+        <Route path="books" element={<Books />} />
+        <Route path="books/:bookId" element={<RequireAuth><BookDetail /></RequireAuth>} />
+        <Route path="books/new" element={<RequireAdmin><AddBook /></RequireAdmin>} />
+        <Route path="orders" element={<RequireAuth><Orders /></RequireAuth>} />
+        <Route path="reservations" element={<RequireAuth><Reservations /></RequireAuth>} />
+        <Route path="profile" element={<RequireAuth><Profile /></RequireAuth>} />
+        <Route path="customers" element={<RequireAdmin><Customers /></RequireAdmin>} />
+        <Route path="returns" element={<RequireAdmin><Returns /></RequireAdmin>} />
+        <Route path="*" element={<NotFound />} />
+      </Route>
+    </Routes>
   );
 }

my-library/src/api/books.js

@@ -0,0 +1,17 @@
+import client from './client';
+
+export function getBooks(page = 0, size = 20) {
+  return client.get('/api/books', { params: { page, size } });
+}
+
+export function registerBook(book) {
+  return client.post('/api/books', book);
+}
+
+export function getBookById(id) {
+  return client.get(`/api/books/${id}`);
+}
+
+export function reserveBook(bookId, reservation) {
+  return client.post(`/api/books/${bookId}/reservations`, reservation);
+}

my-library/src/api/client.js

@@ -0,0 +1,7 @@
+import axios from 'axios';
+
+const client = axios.create({
+  baseURL: 'http://localhost:8080',
+});
+
+export default client;

my-library/src/api/customers.js

@@ -0,0 +1,17 @@
+import client from './client';
+
+export function registerCustomer(customer) {
+  return client.post('/api/customers', customer);
+}
+
+export function findCustomerByPhone(phoneNumber) {
+  return client.get(`/api/customers/phone/${encodeURIComponent(phoneNumber)}`);
+}
+
+export function addLoyaltyPoints(customerId, points) {
+  return client.post(`/api/customers/${customerId}/loyalty/add`, null, { params: { points } });
+}
+
+export function subtractLoyaltyPoints(customerId, points) {
+  return client.post(`/api/customers/${customerId}/loyalty/subtract`, null, { params: { points } });
+}

my-library/src/components/Layout.jsx

@@ -0,0 +1,11 @@
+import { Outlet } from 'react-router-dom';
+import Navbar from './Navbar';
+
+export default function Layout() {
+  return (
+    <>
+      <Navbar />
+      <Outlet />
+    </>
+  );
+}

my-library/src/components/Navbar.jsx

@@ -1,7 +1,16 @@
-import { Link } from 'react-router-dom';
+import { Link, useNavigate } from 'react-router-dom';
+import { useAuth } from '../context/AuthContext';
 import '../styles/navbar.css';
 
 export default function Navbar() {
+  const { user, logout } = useAuth();
+  const navigate = useNavigate();
+
+  function handleLogout() {
+    logout();
+    navigate('/login');
+  }
+
   return (
     <nav className="navbar">
       <Link to="/" className="navbar__logo">Biblio</Link>
@@ -9,13 +18,22 @@ export default function Navbar() {
       <ul className="navbar__links">
         <li><Link to="/">Accueil</Link></li>
         <li><Link to="/books">Catalogue</Link></li>
-        <li><Link to="/orders">Commandes</Link></li>
-        <li><Link to="/profile">Mon compte</Link></li>
+        {user && <li><Link to="/orders">Commandes</Link></li>}
+        {user?.role === 'user' && <li><Link to="/reservations">Mes réservations</Link></li>}
+        {user && <li><Link to="/profile">Mon compte</Link></li>}
+        {user?.role === 'admin' && <li><Link to="/customers">Clients</Link></li>}
+        {user?.role === 'admin' && <li><Link to="/returns">Retours</Link></li>}
       </ul>
 
       <div className="navbar__actions">
-        <button className="btn-ghost">Connexion</button>
-        <button className="btn-cta">S'inscrire</button>
+        {user ? (
+          <>
+            <span>{user.username} ({user.role})</span>
+            <button onClick={handleLogout}>Déconnexion</button>
+          </>
+        ) : (
+          <Link to="/login"><button>Connexion</button></Link>
+        )}
       </div>
     </nav>
   );

my-library/src/context/AuthContext.js

@@ -0,0 +1,39 @@
+import { createContext, useContext, useState } from 'react';
+
+const USERS = [
+  { username: 'admin', password: 'admin', role: 'admin' },
+  { username: 'alice', password: 'bob', role: 'user' },
+];
+
+const AuthContext = createContext(null);
+
+export function AuthProvider({ children }) {
+  const [user, setUser] = useState(() => {
+    const saved = localStorage.getItem('auth');
+    return saved ? JSON.parse(saved) : null;
+  });
+
+  function login(username, password) {
+    const found = USERS.find(u => u.username === username && u.password === password);
+    if (!found) return false;
+    const { password: _, ...safe } = found;
+    setUser(safe);
+    localStorage.setItem('auth', JSON.stringify(safe));
+    return true;
+  }
+
+  function logout() {
+    setUser(null);
+    localStorage.removeItem('auth');
+  }
+
+  return (
+    <AuthContext.Provider value={{ user, login, logout }}>
+      {children}
+    </AuthContext.Provider>
+  );
+}
+
+export function useAuth() {
+  return useContext(AuthContext);
+}

my-library/src/context/ReservationContext.js

@@ -0,0 +1,42 @@
+import { createContext, useContext, useState } from 'react';
+
+const ReservationContext = createContext(null);
+
+export function ReservationProvider({ children }) {
+  const [reservations, setReservations] = useState(() => {
+    const saved = localStorage.getItem('reservations');
+    return saved ? JSON.parse(saved) : [];
+  });
+
+  function addReservation(book, phoneNumber) {
+    const reservation = {
+      reservationId: crypto.randomUUID(),
+      bookId: book.isbn,
+      bookTitle: book.title,
+      bookAuthor: book.author,
+      phoneNumber,
+      status: 'CONFIRMED',
+      reservedAt: new Date().toISOString(),
+    };
+    const updated = [...reservations, reservation];
+    setReservations(updated);
+    localStorage.setItem('reservations', JSON.stringify(updated));
+    return reservation;
+  }
+
+  function cancelReservation(reservationId) {
+    const updated = reservations.filter(r => r.reservationId !== reservationId);
+    setReservations(updated);
+    localStorage.setItem('reservations', JSON.stringify(updated));
+  }
+
+  return (
+    <ReservationContext.Provider value={{ reservations, addReservation, cancelReservation }}>
+      {children}
+    </ReservationContext.Provider>
+  );
+}
+
+export function useReservations() {
+  return useContext(ReservationContext);
+}

my-library/src/context/ReturnContext.js

@@ -0,0 +1,36 @@
+import { createContext, useContext, useState } from 'react';
+
+const ReturnContext = createContext(null);
+
+export function ReturnProvider({ children }) {
+  const [returns, setReturns] = useState(() => {
+    const saved = localStorage.getItem('returns');
+    return saved ? JSON.parse(saved) : [];
+  });
+
+  function addReturn(bookId, bookTitle, customerPhone, reason) {
+    const bookReturn = {
+      returnId: crypto.randomUUID(),
+      bookId,
+      bookTitle,
+      customerPhone,
+      reason,
+      status: 'PROCESSED',
+      returnedAt: new Date().toISOString(),
+    };
+    const updated = [...returns, bookReturn];
+    setReturns(updated);
+    localStorage.setItem('returns', JSON.stringify(updated));
+    return bookReturn;
+  }
+
+  return (
+    <ReturnContext.Provider value={{ returns, addReturn }}>
+      {children}
+    </ReturnContext.Provider>
+  );
+}
+
+export function useReturns() {
+  return useContext(ReturnContext);
+}

my-library/src/context/ReviewContext.js

@@ -0,0 +1,40 @@
+import { createContext, useContext, useState } from 'react';
+
+const ReviewContext = createContext(null);
+
+export function ReviewProvider({ children }) {
+  const [reviews, setReviews] = useState(() => {
+    const saved = localStorage.getItem('reviews');
+    return saved ? JSON.parse(saved) : [];
+  });
+
+  function addReview(bookId, bookTitle, username, rating, comment) {
+    const review = {
+      reviewId: crypto.randomUUID(),
+      bookId,
+      bookTitle,
+      username,
+      rating,
+      comment,
+      createdAt: new Date().toISOString(),
+    };
+    const updated = [...reviews, review];
+    setReviews(updated);
+    localStorage.setItem('reviews', JSON.stringify(updated));
+    return review;
+  }
+
+  function getReviewsByBook(bookId) {
+    return reviews.filter(r => String(r.bookId) === String(bookId));
+  }
+
+  return (
+    <ReviewContext.Provider value={{ reviews, addReview, getReviewsByBook }}>
+      {children}
+    </ReviewContext.Provider>
+  );
+}
+
+export function useReviews() {
+  return useContext(ReviewContext);
+}

my-library/src/index.css

@@ -1,13 +0,0 @@
-body {
-  margin: 0;
-  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
-    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
-    sans-serif;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-}
-
-code {
-  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
-    monospace;
-}

my-library/src/index.js

@@ -1,6 +1,10 @@
 import React from 'react';
 import ReactDOM from 'react-dom/client';
 import { BrowserRouter } from 'react-router-dom';
+import { AuthProvider } from './context/AuthContext';
+import { ReservationProvider } from './context/ReservationContext';
+import { ReviewProvider } from './context/ReviewContext';
+import { ReturnProvider } from './context/ReturnContext';
 import App from './App';
 import './styles/global.css';
 
@@ -8,7 +12,15 @@ const root = ReactDOM.createRoot(document.getElementById('root'));
 root.render(
   <React.StrictMode>
     <BrowserRouter>
-      <App />
+      <AuthProvider>
+        <ReservationProvider>
+          <ReviewProvider>
+            <ReturnProvider>
+              <App />
+            </ReturnProvider>
+          </ReviewProvider>
+        </ReservationProvider>
+      </AuthProvider>
     </BrowserRouter>
   </React.StrictMode>
 );

my-library/src/pages/AddBook.jsx

@@ -0,0 +1,105 @@
+import { useState } from 'react';
+import { registerBook } from '../api/books';
+
+const CATEGORIES = ['FICTION', 'NON_FICTION', 'SCIENCE_FICTION', 'FANTASY', 'MYSTERY', 'THRILLER', 'ROMANCE', 'BIOGRAPHY', 'HISTORY', 'POETRY', 'CHILDRENS', 'YOUNG_ADULT', 'SCIENCE', 'PHILOSOPHY', 'SELF_HELP', 'TRAVEL', 'COOKING', 'ART', 'RELIGION', 'REFERENCE'];
+
+const initialForm = {
+  isbn: '', title: '', author: '', publisher: '', publicationDate: '', price: '', quantity: '', categories: [], description: '', language: '',
+};
+
+export default function AddBook() {
+  const [form, setForm] = useState(initialForm);
+  const [message, setMessage] = useState(null);
+  const [submitting, setSubmitting] = useState(false);
+
+  function handleChange(e) {
+    const { name, value } = e.target;
+    setForm((prev) => ({ ...prev, [name]: value }));
+  }
+
+  function handleCategoryChange(e) {
+    setForm((prev) => ({ ...prev, categories: e.target.value ? [e.target.value] : [] }));
+  }
+
+  function handleSubmit(e) {
+    e.preventDefault();
+    setSubmitting(true);
+    setMessage(null);
+
+    const payload = {
+      ...form,
+      isbn: Number(form.isbn),
+      price: Number(form.price),
+      quantity: Number(form.quantity),
+    };
+
+    registerBook(payload)
+      .then((response) => {
+        setMessage({ type: 'success', text: `Livre créé (id : ${response.data})` });
+        setForm(initialForm);  
+      })
+      .catch((error) => {
+        console.error(error);
+        const status = error.response?.status;
+        if (status === 406) setMessage({ type: 'error', text: 'Ce livre existe déjà.' });
+        else if (status === 400) setMessage({ type: 'error', text: 'Données invalides, vérifie les champs.' });
+        else setMessage({ type: 'error', text: 'Erreur lors de la création.' });
+      })
+      .finally(() => setSubmitting(false));
+  }
+
+  return (
+    <main>
+      <h1>Ajouter un livre</h1>
+      <form onSubmit={handleSubmit}>
+        <table>
+            <tr>
+                <td>ISBN</td>
+                <td><input name="isbn" type="number" value={form.isbn} onChange={handleChange} required /></td>
+            </tr>
+            <tr>
+                <td>Titre</td>
+                <td><input name="title" value={form.title} onChange={handleChange} required /></td>
+            </tr>
+            <tr>
+                <td>Auteur</td>
+                <td><input name="author" value={form.author} onChange={handleChange} required /></td>
+            </tr>
+            <tr>
+                <td>Éditeur</td>
+                <td><input name="publisher" value={form.publisher} onChange={handleChange} required /></td>
+            </tr>
+            <tr>
+                <td>Date de publication</td>
+                <td><input name="publicationDate" type="date" value={form.publicationDate} onChange={handleChange} required /></td>
+            </tr>
+            <tr>
+                <td>Prix</td>
+                <td><input name="price" type="number" step="0.01" value={form.price} onChange={handleChange} required /></td>
+            </tr>
+            <tr>
+                <td>Quantité</td>
+                <td><input name="quantity" type="number" value={form.quantity} onChange={handleChange} required /></td>
+            </tr>
+            <tr>
+                <td>Langue</td>
+                <td><input name="language" value={form.language} onChange={handleChange} required /></td>
+            </tr>
+            <tr>
+                <td>Catégorie</td>
+                <td><select value={form.categories[0] || ''} onChange={handleCategoryChange} required><option value=""> choisir </option>{CATEGORIES.map((c) => <option key={c} value={c}>{c}</option>)}</select></td>
+            </tr>
+            <tr>
+                <td>Description</td>
+                <td><textarea name="description" value={form.description} onChange={handleChange} /></td>
+            </tr>
+        </table>
+        <button type="submit" disabled={submitting}>
+          {submitting ? 'Envoi…' : 'Ajouter le livre'}
+        </button>
+      </form>
+
+      {message && <p>{message.text}</p>}
+    </main>
+  );
+}

my-library/src/pages/BookDetail.jsx

@@ -0,0 +1,123 @@
+import { useState, useEffect } from 'react';
+import { useParams, Link } from 'react-router-dom';
+import { getBookById } from '../api/books';
+import { useAuth } from '../context/AuthContext';
+import { useReservations } from '../context/ReservationContext';
+import { useReviews } from '../context/ReviewContext';
+
+export default function BookDetail() {
+  const { user } = useAuth();
+  const { addReservation } = useReservations();
+  const { addReview, getReviewsByBook } = useReviews();
+  const [rating, setRating] = useState(5);
+  const [comment, setComment] = useState('');
+  const [reviewStatus, setReviewStatus] = useState(null);
+  const { bookId } = useParams();
+  const [book, setBook] = useState(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(null);
+  const [phoneNumber, setPhoneNumber] = useState('');
+  const [reservationStatus, setReservationStatus] = useState(null);
+
+  useEffect(() => { getBookById(bookId).then((response) => setBook(response.data)).catch((err) => { console.error(err); setError('Livre introuvable.'); }).finally(() => setLoading(false)); }, [bookId]);
+
+  function handleReservation(e) {
+    e.preventDefault();
+    addReservation(book, phoneNumber);
+    setReservationStatus({ success: true, message: 'Réservation effectuée avec succès !' });
+    setPhoneNumber('');
+  }
+
+  function handleReview(e) {
+    e.preventDefault();
+    addReview(book.isbn, book.title, user.username, Number(rating), comment);
+    setReviewStatus({ success: true, message: 'Avis publié avec succès !' });
+    setComment('');
+    setRating(5);
+  }
+
+  if (loading) return <main><p>Chargement…</p></main>;
+  if (error) return <main><p>{error}</p><Link to="/books">← Retour au catalogue</Link></main>;
+
+  return (
+    <main>
+      <Link to="/books">← Retour au catalogue</Link>
+      <h1>{book.title}</h1>
+      <p>Auteur : {book.author}</p>
+      <p>ISBN : {book.isbn}</p>
+      <p>Éditeur : {book.publisher}</p>
+      <p>Publié le : {book.publicationDate}</p>
+      <p>Prix : {book.price} €</p>
+      <p>Stock : {book.quantity}</p>
+      <p>Langue : {book.language}</p>
+      <p>Catégories : {book.categories?.join(', ')}</p>
+      {book.description && <p>{book.description}</p>}
+
+      <section>
+        <h2>Avis des lecteurs</h2>
+        {getReviewsByBook(book.isbn).length === 0 ? (
+          <p>Aucun avis pour le moment.</p>
+        ) : (
+          <ul>
+            {getReviewsByBook(book.isbn).map(r => (
+              <li key={r.reviewId}>
+                <strong>{r.username}</strong> — {'*'.repeat(r.rating)}
+                <br />
+                {r.comment}
+                <br />
+                <small>{new Date(r.createdAt).toLocaleDateString('fr-FR')}</small>
+              </li>
+            ))}
+          </ul>
+        )}
+        {user?.role === 'user' && (
+          <form onSubmit={handleReview}>
+            <h3>Laisser un avis</h3>
+            <label>
+              Note :
+              <select value={rating} onChange={e => setRating(e.target.value)}>
+                <option value={1}>*</option>
+                <option value={2}>**</option>
+                <option value={3}>***</option>
+                <option value={4}>****</option>
+                <option value={5}>*****</option>
+              </select>
+            </label>
+            <label>
+              Commentaire :
+              <textarea value={comment} onChange={e => setComment(e.target.value)} required />
+            </label>
+            <button type="submit">Publier l'avis</button>
+          </form>
+        )}
+        {reviewStatus && (
+          <p style={{ color: reviewStatus.success ? 'green' : 'red' }}>
+            {reviewStatus.message}
+          </p>
+        )}
+      </section>
+
+      {user?.role === 'user' && <section>
+        <h2>Réserver ce livre</h2>
+        <form onSubmit={handleReservation}>
+          <label>
+            Numéro de téléphone :
+            <input
+              type="tel"
+              value={phoneNumber}
+              onChange={(e) => setPhoneNumber(e.target.value)}
+              placeholder="0612345678"
+              required
+            />
+          </label>
+          <button type="submit">Réserver</button>
+        </form>
+        {reservationStatus && (
+          <p style={{ color: reservationStatus.success ? 'green' : 'red' }}>
+            {reservationStatus.message}
+          </p>
+        )}
+      </section>}
+    </main>
+  );
+}

my-library/src/pages/Books.jsx

@@ -0,0 +1,45 @@
+import { useState, useEffect } from 'react';
+import { getBooks } from '../api/books';
+import { Link } from 'react-router-dom';
+import { useAuth } from '../context/AuthContext';
+
+export default function Books() {
+  const { user } = useAuth();
+  const [books, setBooks] = useState([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(null);
+
+  useEffect(() => {
+    getBooks()
+      .then((response) => {
+        console.log(response.data); 
+        setBooks(response.data.content);
+      })
+      .catch((err) => {
+        console.error(err);
+        setError("Impossible de charger les livres.");
+      })
+      .finally(() => {
+        setLoading(false);
+      });
+  }, []);
+
+  if (loading) return <main><p>Chargement…</p></main>;
+  if (error) return <main><p>{error}</p></main>;
+
+  return (
+    <main>
+      <h1>Catalogue</h1>
+      {user?.role === 'admin' && <Link to="/books/new">+ Ajouter un livre</Link>}
+      <ul>
+        {books.map((book) => (
+          <li key={book.isbn}>
+            <Link to={`/books/${book.isbn}`}>
+              <strong>{book.title}</strong> - {book.author}
+            </Link>
+          </li>
+        ))}
+      </ul>
+    </main>
+  );
+}

my-library/src/pages/Customers.jsx

@@ -0,0 +1,109 @@
+import { useState } from 'react';
+import { registerCustomer, findCustomerByPhone, addLoyaltyPoints, subtractLoyaltyPoints } from '../api/customers';
+
+const initialForm = { firstName: '', lastName: '', phoneNumber: '' };
+
+export default function Customers() {
+  const [form, setForm] = useState(initialForm);
+  const [registerMsg, setRegisterMsg] = useState(null);
+  const [submitting, setSubmitting] = useState(false);
+  const [pointsInput, setPointsInput] = useState('');
+
+  function handleChange(e) {
+    const { name, value } = e.target;
+    setForm((prev) => ({ ...prev, [name]: value }));
+  }
+
+  function handleRegister(e) {
+    e.preventDefault();
+    setSubmitting(true);
+    setRegisterMsg(null);
+    registerCustomer(form)
+      .then((response) => {
+        setRegisterMsg(`Client créé (id : ${response.data})`);
+        setForm(initialForm);
+      })
+      .catch((error) => {
+        console.error(error);
+        setRegisterMsg('Erreur lors de la création du client.');
+      })
+      .finally(() => setSubmitting(false));
+  }
+
+  const [phone, setPhone] = useState('');
+  const [customer, setCustomer] = useState(null);
+  const [searchError, setSearchError] = useState(null);
+
+  function handleSearch(e) {
+    e.preventDefault();
+    setSearchError(null);
+    setCustomer(null);
+    findCustomerByPhone(phone)
+      .then((response) => setCustomer(response.data))
+      .catch((error) => {
+        console.error(error);
+        setSearchError('Aucun client trouvé avec ce numéro.');
+      });
+  }
+  function applyLoyalty(operation) {
+  const points = Number(pointsInput);
+  const action = operation === 'add' ? addLoyaltyPoints : subtractLoyaltyPoints;
+
+  action(customer.id, points)
+    .then((response) => {
+      setCustomer((prev) => ({ ...prev, loyaltyPoints: response.data }));
+      setPointsInput('');
+    })
+    .catch((error) => {
+      console.error(error);
+      if (error.response?.status === 400) setSearchError('Pas assez de points pour ce retrait.');
+      else setSearchError('Erreur lors de la mise à jour des points.');
+    });
+  }
+
+  return (
+    <main>
+      <h1>Gestion des clients</h1>
+
+      <section>
+        <h2>Enregistrer un client</h2>
+        <form onSubmit={handleRegister}>
+          <label>Prénom
+            <input name="firstName" value={form.firstName} onChange={handleChange} required />
+          </label>
+          <label>Nom
+            <input name="lastName" value={form.lastName} onChange={handleChange} required />
+          </label>
+          <label>Téléphone
+            <input name="phoneNumber" value={form.phoneNumber} onChange={handleChange} required />
+          </label>
+          <button type="submit" disabled={submitting}>
+            {submitting ? 'Envoi…' : 'Créer le client'}
+          </button>
+        </form>
+        {registerMsg && <p>{registerMsg}</p>}
+      </section>
+
+      <section>
+        <h2>Rechercher un client</h2>
+        <form onSubmit={handleSearch}>
+          <label>Téléphone
+            <input value={phone} onChange={(e) => setPhone(e.target.value)} required />
+          </label>
+          <button type="submit">Rechercher</button>
+        </form>
+        {searchError && <p>{searchError}</p>}
+        {customer && (
+          <div>
+            <p>{customer.firstName} {customer.lastName}</p>
+            <p>Téléphone : {customer.phoneNumber}</p>
+            <p><strong>Points de fidélité : {customer.loyaltyPoints}</strong></p>
+            <input type="number"value={pointsInput}onChange={(e) => setPointsInput(e.target.value)}placeholder="Nombre de points"/>
+            <button type="button" onClick={() => applyLoyalty('add')}>Ajouter</button>
+            <button type="button" onClick={() => applyLoyalty('subtract')}>Retirer</button>
+          </div>
+        )}
+      </section>
+    </main>
+  );
+}

my-library/src/pages/Home.jsx

@@ -1,91 +1,9 @@
 import { Link } from 'react-router-dom';
 import '../styles/home.css';
 
-const features = [
-  { icon: '📚', title: 'Enregistrer un livre',   desc: 'Ajoutez un nouveau titre au catalogue de la bibliothèque.', role: 'admin', path: '/books/new' },
-  { icon: '🛒', title: 'Passer une commande',     desc: 'Commandez vos livres préférés en quelques secondes.',       role: 'user',  path: '/orders/new' },
-  { icon: '🏷️', title: 'Appliquer une promotion', desc: 'Créez et gérez vos codes promotionnels.',                   role: 'admin', path: '/promotions/new' },
-  { icon: '📌', title: 'Réserver un livre',        desc: 'Réservez un exemplaire avant sa disponibilité.',            role: 'user',  path: '/reservations/new' },
-  { icon: '↩️', title: 'Retour de livre',          desc: 'Gérez les retours et remises en stock.',                   role: 'admin', path: '/returns/new' },
-  { icon: '⭐', title: 'Points de fidélité',       desc: 'Consultez et utilisez vos points cumulés.',                role: 'user',  path: '/loyalty' },
-  { icon: '💬', title: 'Laisser un avis',          desc: 'Partagez votre opinion sur vos dernières lectures.',        role: 'user',  path: '/reviews/new' },
-  { icon: '🎫', title: 'Créer un abonnement',      desc: 'Souscrivez à un abonnement mensuel ou annuel.',            role: 'user',  path: '/subscriptions/new' },
-  { icon: '🤝', title: 'Prêt entre lecteurs',      desc: "Prêtez vos livres à d'autres membres de la communauté.",   role: 'user',  path: '/loans/new' },
-  { icon: '👥', title: 'Commande groupée',         desc: 'Participez à des achats groupés avantageux.',              role: 'user',  path: '/group-orders' },
-];
-
-const stats = [
-  { value: '10 000+', label: 'Livres disponibles' },
-  { value: '5 000+',  label: 'Lecteurs actifs'    },
-  { value: '50+',     label: 'Catégories'         },
-];
-
 export default function Home() {
   return (
     <main>
-      {/* Hero */}
-      <section className="hero">
-        <p className="hero__eyebrow">Votre bibliothèque en ligne</p>
-        <h1 className="hero__title">
-          Des livres pour tous,
-          <span className="hero__title-italic">partout, toujours.</span>
-        </h1>
-        <div className="hero__rule" />
-        <p className="hero__subtitle">
-          Commandez, réservez, prêtez et partagez vos lectures.
-          Une plateforme pensée pour les vrais amoureux des livres.
-        </p>
-        <div className="hero__actions">
-          <Link to="/books">
-            <button className="hero__btn-primary">Explorer le catalogue</button>
-          </Link>
-          <button className="hero__btn-secondary">En savoir plus</button>
-        </div>
-      </section>
-
-      {/* Stats */}
-      <section className="stats">
-        {stats.map(({ value, label }) => (
-          <div key={label} className="stats__item">
-            <div className="stats__value">{value}</div>
-            <div className="stats__label">{label}</div>
-          </div>
-        ))}
-      </section>
-
-      {/* Features */}
-      <div className="section-header">
-        <p className="section-header__eyebrow">Fonctionnalités</p>
-        <h2 className="section-header__title">Tout ce dont vous avez besoin</h2>
-      </div>
-
-      <section className="features">
-        <div className="features__grid">
-          {features.map((f) => (
-            <Link to={f.path} key={f.title} className="feature-card">
-              <div className="feature-card__glyph">{f.icon}</div>
-              <span className={`badge badge--${f.role}`}>
-                {f.role === 'admin' ? 'Administrateur' : 'Utilisateur'}
-              </span>
-              <h3 className="feature-card__title">{f.title}</h3>
-              <p className="feature-card__desc">{f.desc}</p>
-              <span className="feature-card__arrow">→ Accéder</span>
-            </Link>
-          ))}
-        </div>
-      </section>
-
-      {/* Footer CTA */}
-      <section className="home-cta">
-        <div className="home-cta__rule" />
-        <h2 className="home-cta__title">
-          Prêt à commencer<br />votre aventure ?
-        </h2>
-        <p className="home-cta__sub">Rejoignez des milliers de lecteurs dès aujourd'hui.</p>
-        <Link to="/register">
-          <span className="home-cta__btn">Créer un compte gratuit</span>
-        </Link>
-      </section>
     </main>
   );
 }

my-library/src/pages/Login.jsx

@@ -0,0 +1,57 @@
+import { useState } from 'react';
+import { useNavigate } from 'react-router-dom';
+import { useAuth } from '../context/AuthContext';
+
+export default function Login() {
+  const { login } = useAuth();
+  const navigate = useNavigate();
+  const [form, setForm] = useState({ username: '', password: '' });
+  const [error, setError] = useState(null);
+
+  function handleSubmit(e) {
+    e.preventDefault();
+    const ok = login(form.username, form.password);
+    if (ok) {
+      navigate('/');
+    } else {
+      setError('Identifiants incorrects.');
+    }
+  }
+
+  return (
+    <main>
+      <h1>Connexion</h1>
+      <form onSubmit={handleSubmit}>
+        <div>
+          <label>
+            Nom d'utilisateur :
+            <input
+              type="text"
+              value={form.username}
+              onChange={e => setForm(f => ({ ...f, username: e.target.value }))}
+              required
+            />
+          </label>
+        </div>
+        <div>
+          <label>
+            Mot de passe :
+            <input
+              type="password"
+              value={form.password}
+              onChange={e => setForm(f => ({ ...f, password: e.target.value }))}
+              required
+            />
+          </label>
+        </div>
+        <button type="submit">Se connecter</button>
+        {error && <p style={{ color: 'red' }}>{error}</p>}
+      </form>
+      <p>Comptes disponibles :</p>
+      <ul>
+        <li><strong>admin</strong> / admin (administrateur)</li>
+        <li><strong>alice (utilisateur)</strong> / bob (utilisateur)</li>
+      </ul>
+    </main>
+  );
+}

my-library/src/pages/NotFound.jsx

@@ -0,0 +1,3 @@
+export default function NotFound() {
+  return <main><h1>404 Page introuvable</h1></main>;
+}

my-library/src/pages/Orders.jsx

@@ -0,0 +1,3 @@
+export default function Orders() {
+  return <main><h1>Mes commandes</h1></main>;
+}

my-library/src/pages/Profile.jsx

@@ -0,0 +1,3 @@
+export default function Profile() {
+  return <main><h1>Mon compte</h1></main>;
+}

my-library/src/pages/Reservations.jsx

@@ -0,0 +1,37 @@
+import { useReservations } from '../context/ReservationContext';
+import { Link } from 'react-router-dom';
+
+export default function Reservations() {
+  const { reservations, cancelReservation } = useReservations();
+
+  if (reservations.length === 0) {
+    return (
+      <main>
+        <h1>Mes réservations</h1>
+        <p>Aucune réservation pour le moment.</p>
+        <Link to="/books">← Retour au catalogue</Link>
+      </main>
+    );
+  }
+
+  return (
+    <main>
+      <h1>Mes réservations</h1>
+      <ul>
+        {reservations.map(r => (
+          <li key={r.reservationId}>
+            <strong>{r.bookTitle}</strong> — {r.bookAuthor}
+            <br />
+            Téléphone : {r.phoneNumber}
+            <br />
+            Réservé le : {new Date(r.reservedAt).toLocaleDateString('fr-FR')}
+            <br />
+            Statut : {r.status}
+            <br />
+            <button onClick={() => cancelReservation(r.reservationId)}>Annuler</button>
+          </li>
+        ))}
+      </ul>
+    </main>
+  );
+}

my-library/src/pages/Returns.jsx

@@ -0,0 +1,96 @@
+import { useState } from 'react';
+import { useReturns } from '../context/ReturnContext';
+import { getBooks } from '../api/books';
+import { useEffect } from 'react';
+
+export default function Returns() {
+  const { returns, addReturn } = useReturns();
+  const [books, setBooks] = useState([]);
+  const [form, setForm] = useState({ bookId: '', customerPhone: '', reason: '' });
+  const [message, setMessage] = useState(null);
+
+  useEffect(() => {
+    getBooks(0, 100).then(res => setBooks(res.data.content)).catch(console.error);
+  }, []);
+
+  function handleChange(e) {
+    const { name, value } = e.target;
+    setForm(f => ({ ...f, [name]: value }));
+  }
+
+  function handleSubmit(e) {
+    e.preventDefault();
+    const book = books.find(b => String(b.isbn) === String(form.bookId));
+    const bookTitle = book ? book.title : form.bookId;
+    addReturn(form.bookId, bookTitle, form.customerPhone, form.reason);
+    setMessage({ success: true, text: 'Retour enregistré avec succès !' });
+    setForm({ bookId: '', customerPhone: '', reason: '' });
+  }
+
+  return (
+    <main>
+      <h1>Gestion des retours</h1>
+
+      <section>
+        <h2>Enregistrer un retour</h2>
+        <form onSubmit={handleSubmit}>
+          <label>
+            Livre :
+            <select name="bookId" value={form.bookId} onChange={handleChange} required>
+              <option value="">-- Choisir un livre --</option>
+              {books.map(b => (
+                <option key={b.isbn} value={b.isbn}>{b.title} — {b.author}</option>
+              ))}
+            </select>
+          </label>
+          <label>
+            Téléphone du client :
+            <input
+              name="customerPhone"
+              type="tel"
+              value={form.customerPhone}
+              onChange={handleChange}
+              placeholder="0612345678"
+              required
+            />
+          </label>
+          <label>
+            Motif :
+            <textarea
+              name="reason"
+              value={form.reason}
+              onChange={handleChange}
+              placeholder="Motif du retour..."
+              required
+            />
+          </label>
+          <button type="submit">Enregistrer le retour</button>
+        </form>
+        {message && <p style={{ color: message.success ? 'green' : 'red' }}>{message.text}</p>}
+      </section>
+
+      <section>
+        <h2>Historique des retours</h2>
+        {returns.length === 0 ? (
+          <p>Aucun retour enregistré.</p>
+        ) : (
+          <ul>
+            {returns.map(r => (
+              <li key={r.returnId}>
+                <strong>{r.bookTitle}</strong>
+                <br />
+                Client : {r.customerPhone}
+                <br />
+                Motif : {r.reason}
+                <br />
+                Statut : {r.status}
+                <br />
+                <small>{new Date(r.returnedAt).toLocaleDateString('fr-FR')}</small>
+              </li>
+            ))}
+          </ul>
+        )}
+      </section>
+    </main>
+  );
+}

my-library/src/styles/global.css

@@ -1,52 +0,0 @@
-*, *::before, *::after {
-    box-sizing: border-box;
-    margin: 0;
-    padding: 0;
-  }
-  
-  :root {
-    --bg:        #0d0b08;
-    --bg-raised: #111009;
-    --bg-card:   #0f0d0a;
-    --gold:      #c9a84c;
-    --gold-dim:  rgba(201, 168, 76, 0.45);
-    --gold-faint:rgba(201, 168, 76, 0.1);
-    --parchment: #f0e6d0;
-    --text:      #e8dcc8;
-    --text-muted:rgba(232, 220, 200, 0.45);
-    --text-dim:  rgba(232, 220, 200, 0.25);
-    --rust:      #c05a2a;
-    --rust-dim:  rgba(192, 90, 42, 0.4);
-    --border:    rgba(180, 150, 80, 0.15);
-    --border-hi: rgba(180, 150, 80, 0.3);
-    --font-title:'Cinzel', 'Palatino Linotype', Georgia, serif;
-    --font-body: 'Cormorant Garamond', 'Palatino Linotype', Georgia, serif;
-  }
-  
-  html { scroll-behavior: smooth; }
-  
-  body {
-    background-color: var(--bg);
-    color: var(--text);
-    font-family: var(--font-body);
-    font-size: 18px;
-    line-height: 1.7;
-    -webkit-font-smoothing: antialiased;
-  }
-  
-  h1, h2, h3, h4 {
-    font-family: var(--font-title);
-  }
-  
-  a {
-    color: inherit;
-    text-decoration: none;
-  }
-  
-  button {
-    cursor: pointer;
-    font-family: var(--font-title);
-    border: none;
-    outline: none;
-    background: none;
-  }

my-library/src/styles/home.css

@@ -1,372 +0,0 @@
-/* ── Hero ───────────────────────────── */
-.hero {
-    padding: 110px 48px 90px;
-    text-align: center;
-    border-bottom: 1px solid var(--border);
-    position: relative;
-    overflow: hidden;
-  }
-  
-  .hero::before {
-    content: '';
-    position: absolute;
-    top: -80px;
-    left: 50%;
-    transform: translateX(-50%);
-    width: 600px;
-    height: 400px;
-    background: radial-gradient(ellipse, rgba(180, 140, 50, 0.06) 0%, transparent 70%);
-    pointer-events: none;
-  }
-  
-  .hero__eyebrow {
-    font-family: var(--font-title);
-    font-size: 0.65rem;
-    letter-spacing: 0.28em;
-    text-transform: uppercase;
-    color: var(--gold);
-    opacity: 0.75;
-    margin-bottom: 22px;
-    opacity: 0;
-    animation: fadeUp 0.7s 0.1s ease forwards;
-  }
-  
-  .hero__title {
-    font-family: var(--font-title);
-    font-size: clamp(2.4rem, 5.5vw, 4.5rem);
-    font-weight: 600;
-    letter-spacing: 0.02em;
-    line-height: 1.1;
-    color: var(--parchment);
-    max-width: 820px;
-    margin: 0 auto 0;
-    opacity: 0;
-    animation: fadeUp 0.7s 0.2s ease forwards;
-  }
-  
-  .hero__title-italic {
-    display: block;
-    font-family: var(--font-body);
-    font-style: italic;
-    font-weight: 400;
-    font-size: clamp(2.8rem, 6vw, 5rem);
-    color: var(--gold);
-    margin-top: 4px;
-    letter-spacing: 0;
-  }
-  
-  .hero__rule {
-    width: 80px;
-    height: 1px;
-    background: linear-gradient(90deg, transparent, var(--gold), transparent);
-    margin: 28px auto;
-    opacity: 0;
-    animation: fadeUp 0.7s 0.3s ease forwards;
-  }
-  
-  .hero__subtitle {
-    font-family: var(--font-body);
-    font-style: italic;
-    font-size: 1.1rem;
-    color: var(--text-muted);
-    max-width: 500px;
-    margin: 0 auto 40px;
-    line-height: 1.85;
-    opacity: 0;
-    animation: fadeUp 0.7s 0.35s ease forwards;
-  }
-  
-  .hero__actions {
-    display: flex;
-    gap: 16px;
-    justify-content: center;
-    flex-wrap: wrap;
-    opacity: 0;
-    animation: fadeUp 0.7s 0.45s ease forwards;
-  }
-  
-  .hero__btn-primary {
-    font-family: var(--font-title);
-    font-size: 0.68rem;
-    letter-spacing: 0.16em;
-    text-transform: uppercase;
-    color: var(--gold);
-    padding: 13px 30px;
-    border: 1px solid var(--gold-dim);
-    background: var(--gold-faint);
-    transition: background 0.2s, border-color 0.2s;
-  }
-  
-  .hero__btn-primary:hover {
-    background: rgba(201, 168, 76, 0.2);
-    border-color: var(--gold);
-  }
-  
-  .hero__btn-secondary {
-    font-family: var(--font-title);
-    font-size: 0.68rem;
-    letter-spacing: 0.16em;
-    text-transform: uppercase;
-    color: var(--text-muted);
-    padding: 13px 30px;
-    border: 1px solid rgba(232, 220, 200, 0.15);
-    transition: color 0.2s, border-color 0.2s;
-  }
-  
-  .hero__btn-secondary:hover {
-    color: var(--text);
-    border-color: rgba(232, 220, 200, 0.35);
-  }
-  
-  @keyframes fadeUp {
-    from { opacity: 0; transform: translateY(20px); }
-    to   { opacity: 1; transform: translateY(0); }
-  }
-  
-  /* ── Stats ───────────────────────────── */
-  .stats {
-    display: flex;
-    justify-content: center;
-    border-bottom: 1px solid var(--border);
-  }
-  
-  .stats__item {
-    flex: 1;
-    max-width: 240px;
-    text-align: center;
-    padding: 36px 16px;
-    border-right: 1px solid var(--border);
-  }
-  
-  .stats__item:last-child {
-    border-right: none;
-  }
-  
-  .stats__value {
-    font-family: var(--font-title);
-    font-size: 2rem;
-    font-weight: 600;
-    color: var(--gold);
-    letter-spacing: 0.04em;
-  }
-  
-  .stats__label {
-    font-family: var(--font-title);
-    font-size: 0.6rem;
-    letter-spacing: 0.18em;
-    text-transform: uppercase;
-    color: var(--text-dim);
-    margin-top: 6px;
-  }
-  
-  /* ── Section header ──────────────────── */
-  .section-header {
-    text-align: center;
-    padding: 80px 24px 0;
-  }
-  
-  .section-header__eyebrow {
-    font-family: var(--font-title);
-    font-size: 0.6rem;
-    letter-spacing: 0.28em;
-    text-transform: uppercase;
-    color: rgba(201, 168, 76, 0.55);
-    margin-bottom: 14px;
-  }
-  
-  .section-header__title {
-    font-family: var(--font-title);
-    font-size: clamp(1.4rem, 3vw, 2.2rem);
-    font-weight: 600;
-    color: var(--parchment);
-    letter-spacing: 0.04em;
-  }
-  
-  /* ── Features ────────────────────────── */
-  .features {
-    padding: 40px 0 80px;
-  }
-  
-  .features__grid {
-    display: grid;
-    grid-template-columns: repeat(4, 1fr);
-    gap: 1px;
-    background: var(--border);
-    border-top: 1px solid var(--border);
-    border-bottom: 1px solid var(--border);
-  }
-  
-  @media (max-width: 1000px) {
-    .features__grid { grid-template-columns: repeat(3, 1fr); }
-  }
-  
-  @media (max-width: 700px) {
-    .features__grid { grid-template-columns: repeat(2, 1fr); }
-    .hero { padding: 80px 24px 60px; }
-    .navbar { padding: 0 20px; }
-    .stats { flex-direction: column; align-items: center; }
-    .stats__item { border-right: none; border-bottom: 1px solid var(--border); max-width: 100%; width: 100%; }
-  }
-  
-  @media (max-width: 420px) {
-    .features__grid { grid-template-columns: 1fr; }
-  }
-  
-  /* ── Feature card ────────────────────── */
-  .feature-card {
-    background: var(--bg);
-    padding: 30px 24px 26px;
-    display: flex;
-    flex-direction: column;
-    gap: 9px;
-    text-decoration: none;
-    color: var(--text);
-    transition: background 0.25s;
-    position: relative;
-    overflow: hidden;
-  }
-  
-  .feature-card::after {
-    content: '';
-    position: absolute;
-    bottom: 0;
-    left: 0;
-    right: 0;
-    height: 1px;
-    background: linear-gradient(90deg, transparent, var(--gold), transparent);
-    opacity: 0;
-    transition: opacity 0.3s;
-  }
-  
-  .feature-card:hover {
-    background: #131007;
-  }
-  
-  .feature-card:hover::after {
-    opacity: 1;
-  }
-  
-  .feature-card__glyph {
-    font-size: 1.4rem;
-    margin-bottom: 4px;
-    opacity: 0.8;
-    line-height: 1;
-  }
-  
-  .feature-card__title {
-    font-family: var(--font-title);
-    font-size: 0.8rem;
-    font-weight: 600;
-    letter-spacing: 0.05em;
-    color: var(--parchment);
-    line-height: 1.4;
-  }
-  
-  .feature-card__desc {
-    font-family: var(--font-body);
-    font-style: italic;
-    font-size: 0.9rem;
-    color: var(--text-muted);
-    line-height: 1.65;
-    flex: 1;
-  }
-  
-  .feature-card__arrow {
-    font-family: var(--font-title);
-    font-size: 0.65rem;
-    letter-spacing: 0.12em;
-    text-transform: uppercase;
-    color: var(--text-dim);
-    transition: color 0.2s;
-    margin-top: 6px;
-  }
-  
-  .feature-card:hover .feature-card__arrow {
-    color: var(--gold);
-  }
-  
-  .badge {
-    display: inline-block;
-    font-family: var(--font-title);
-    font-size: 0.55rem;
-    letter-spacing: 0.12em;
-    text-transform: uppercase;
-    padding: 3px 9px;
-    align-self: flex-start;
-    margin-bottom: 2px;
-  }
-  
-  .badge--admin {
-    border: 1px solid var(--rust-dim);
-    color: var(--rust);
-  }
-  
-  .badge--user {
-    border: 1px solid var(--gold-dim);
-    color: rgba(201, 168, 76, 0.65);
-  }
-  
-  /* ── Footer CTA ──────────────────────── */
-  .home-cta {
-    padding: 100px 24px;
-    text-align: center;
-    border-top: 1px solid var(--border);
-    position: relative;
-    overflow: hidden;
-  }
-  
-  .home-cta::before {
-    content: '';
-    position: absolute;
-    bottom: -60px;
-    left: 50%;
-    transform: translateX(-50%);
-    width: 500px;
-    height: 300px;
-    background: radial-gradient(ellipse, rgba(180, 140, 50, 0.05) 0%, transparent 70%);
-    pointer-events: none;
-  }
-  
-  .home-cta__rule {
-    width: 60px;
-    height: 1px;
-    background: linear-gradient(90deg, transparent, var(--gold), transparent);
-    margin: 0 auto 32px;
-  }
-  
-  .home-cta__title {
-    font-family: var(--font-title);
-    font-size: clamp(1.8rem, 4vw, 3rem);
-    font-weight: 600;
-    letter-spacing: 0.04em;
-    color: var(--parchment);
-    margin-bottom: 16px;
-    line-height: 1.15;
-  }
-  
-  .home-cta__sub {
-    font-family: var(--font-body);
-    font-style: italic;
-    font-size: 1rem;
-    color: var(--text-muted);
-    margin-bottom: 40px;
-  }
-  
-  .home-cta__btn {
-    display: inline-block;
-    font-family: var(--font-title);
-    font-size: 0.68rem;
-    letter-spacing: 0.18em;
-    text-transform: uppercase;
-    color: var(--gold);
-    padding: 13px 36px;
-    border: 1px solid var(--gold-dim);
-    background: var(--gold-faint);
-    transition: background 0.2s, border-color 0.2s;
-    cursor: pointer;
-  }
-  
-  .home-cta__btn:hover {
-    background: rgba(201, 168, 76, 0.2);
-    border-color: var(--gold);
-  }

my-library/src/styles/navbar.css

@@ -1,98 +0,0 @@
-.navbar {
-    position: sticky;
-    top: 0;
-    z-index: 200;
-    height: 56px;
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-    padding: 0 48px;
-    background: rgba(13, 11, 8, 0.94);
-    border-bottom: 1px solid var(--border);
-    backdrop-filter: blur(12px);
-    -webkit-backdrop-filter: blur(12px);
-  }
-  
-  .navbar__logo {
-    font-family: var(--font-title);
-    font-size: 1.05rem;
-    font-weight: 600;
-    letter-spacing: 0.22em;
-    color: var(--gold);
-    text-transform: uppercase;
-  }
-  
-  .navbar__links {
-    display: flex;
-    gap: 8px;
-    list-style: none;
-  }
-  
-  .navbar__links a {
-    font-family: var(--font-title);
-    font-size: 0.7rem;
-    letter-spacing: 0.14em;
-    text-transform: uppercase;
-    color: var(--text-muted);
-    padding: 6px 14px;
-    transition: color 0.2s;
-    position: relative;
-  }
-  
-  .navbar__links a::after {
-    content: '';
-    position: absolute;
-    bottom: 0;
-    left: 14px;
-    right: 14px;
-    height: 1px;
-    background: var(--gold);
-    transform: scaleX(0);
-    transition: transform 0.25s ease;
-  }
-  
-  .navbar__links a:hover {
-    color: var(--gold);
-  }
-  
-  .navbar__links a:hover::after {
-    transform: scaleX(1);
-  }
-  
-  .navbar__actions {
-    display: flex;
-    gap: 10px;
-  }
-  
-  .btn-ghost {
-    font-family: var(--font-title);
-    font-size: 0.65rem;
-    letter-spacing: 0.14em;
-    text-transform: uppercase;
-    color: var(--text-muted);
-    padding: 7px 16px;
-    border: 1px solid rgba(232, 220, 200, 0.15);
-    transition: color 0.2s, border-color 0.2s;
-  }
-  
-  .btn-ghost:hover {
-    color: var(--text);
-    border-color: rgba(232, 220, 200, 0.35);
-  }
-  
-  .btn-cta {
-    font-family: var(--font-title);
-    font-size: 0.65rem;
-    letter-spacing: 0.14em;
-    text-transform: uppercase;
-    color: var(--gold);
-    padding: 7px 16px;
-    border: 1px solid var(--gold-dim);
-    background: var(--gold-faint);
-    transition: background 0.2s, border-color 0.2s;
-  }
-  
-  .btn-cta:hover {
-    background: rgba(201, 168, 76, 0.18);
-    border-color: var(--gold);
-  }

mylibrary/.gitignore

@@ -0,0 +1,38 @@
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

mylibrary/pom.xml

@@ -0,0 +1,151 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>fr.iut_fbleau.but3.dev62</groupId>
+  <artifactId>mylibrary</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <properties>
+    <!--    Your java version-->
+    <maven.compiler.source>21</maven.compiler.source>
+    <maven.compiler.target>21</maven.compiler.target>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+
+    <!--    Main dependencies -->
+    <lombok.version>1.18.36</lombok.version>
+
+    <!--    Test Verisons-->
+    <junit.version>5.11.4</junit.version>
+    <junit.platform.version>1.11.4</junit.platform.version>
+    <cucumber.version>7.21.1</cucumber.version>
+    <mockito.version>5.16.0</mockito.version>
+
+    <!--  Maven build version  -->
+    <maven.compiler.version>3.13.0</maven.compiler.version>
+    <maven.surefire.version>3.5.2</maven.surefire.version>
+  </properties>
+
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>io.cucumber</groupId>
+        <artifactId>cucumber-bom</artifactId>
+        <version>${cucumber.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+      <dependency>
+        <groupId>org.junit</groupId>
+        <artifactId>junit-bom</artifactId>
+        <version>${junit.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <version>${lombok.version}</version>
+      <scope>provided</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>io.cucumber</groupId>
+      <artifactId>cucumber-java</artifactId>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>io.cucumber</groupId>
+      <artifactId>cucumber-junit-platform-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.junit.platform</groupId>
+      <artifactId>junit-platform-suite</artifactId>
+      <version>${junit.platform.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.platform</groupId>
+      <artifactId>junit-platform-engine</artifactId>
+      <version>${junit.platform.version}</version>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
+      <version>${junit.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-params</artifactId>
+      <version>${junit.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <version>${junit.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.platform</groupId>
+      <artifactId>junit-platform-launcher</artifactId>
+      <version>${junit.platform.version}</version>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <version>${mockito.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-junit-jupiter</artifactId>
+      <version>${mockito.version}</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>${maven.compiler.version}</version>
+        <configuration>
+          <encoding>${project.build.sourceEncoding}</encoding>
+          <source>${maven.compiler.source}</source>
+          <target>${maven.compiler.target}</target>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <version>${maven.surefire.version}</version>
+        <configuration>
+          <properties>
+            <!-- Work around. Surefire does not include enough
+                 information to disambiguate between different
+                 examples and scenarios. -->
+            <configurationParameters>
+              cucumber.junit-platform.naming-strategy=long
+            </configurationParameters>
+          </properties>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookDTO.java

@@ -0,0 +1,22 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.entity.Category;
+import java.time.LocalDate;
+import java.util.List;
+import lombok.Builder;
+import lombok.Getter;
+
+@Builder
+@Getter
+public class BookDTO {
+  private final long isbn;
+  private final String title;
+  private final String author;
+  private final String publisher;
+  private final LocalDate publicationDate;
+  private final double price;
+  private final int quantity;
+  private final List<Category> categories;
+  private final String description;
+  private final String language;
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookInfo.java

@@ -0,0 +1,19 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.entity.Category;
+import java.time.LocalDate;
+import java.util.List;
+
+public record BookInfo(
+    long isbn,
+    String title,
+    String author,
+    String publisher,
+    LocalDate publicationDate,
+    double price,
+    int quantity,
+    List<Category> categories,
+    String description,
+    String language
+) {
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/converter/BookConverter.java

@@ -0,0 +1,42 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.converter;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.BookDTO;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.BookInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.entity.Book;
+
+public final class BookConverter {
+
+  private BookConverter() {
+
+  }
+
+  public static Book toDomain(BookInfo book) {
+    return Book.builder()
+        .isbn(book.isbn())
+        .title(book.title())
+        .author(book.author())
+        .publisher(book.publisher())
+        .publicationDate(book.publicationDate())
+        .price(book.price())
+        .quantity(book.quantity())
+        .categories(book.categories())
+        .description(book.description())
+        .language(book.language())
+        .build();
+  }
+
+  public static BookDTO toDTO(Book book) {
+    return BookDTO.builder()
+        .isbn(book.getIsbn())
+        .title(book.getTitle())
+        .author(book.getAuthor())
+        .publisher(book.getPublisher())
+        .publicationDate(book.getPublicationDate())
+        .price(book.getPrice())
+        .quantity(book.getQuantity())
+        .categories(book.getCategories())
+        .description(book.getDescription())
+        .language(book.getLanguage())
+        .build();
+  }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/entity/Category.java

@@ -0,0 +1,24 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.entity;
+
+public enum Category {
+  FICTION,
+  NON_FICTION,
+  SCIENCE_FICTION,
+  FANTASY,
+  MYSTERY,
+  THRILLER,
+  ROMANCE,
+  BIOGRAPHY,
+  HISTORY,
+  POETRY,
+  CHILDRENS,
+  YOUNG_ADULT,
+  SCIENCE,
+  PHILOSOPHY,
+  SELF_HELP,
+  TRAVEL,
+  COOKING,
+  ART,
+  RELIGION,
+  REFERENCE
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/exception/BookAlreadyExistsException.java

@@ -0,0 +1,13 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.exception;
+
+import java.text.MessageFormat;
+
+public class BookAlreadyExistsException extends Exception {
+
+  public static final String A_BOOK_WITH_ISBN_ALREADY_EXISTS_MESSAGE = "A book with isbn {0} already exists";
+
+  public BookAlreadyExistsException(long isbn) {
+    // ISBN passe en String pour ne pas que MessageFormat ajoute le separateur de milliers
+    super(MessageFormat.format(A_BOOK_WITH_ISBN_ALREADY_EXISTS_MESSAGE, String.valueOf(isbn)));
+  }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/exception/BookNotFoundException.java

@@ -0,0 +1,13 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.exception;
+
+import java.text.MessageFormat;
+
+public class BookNotFoundException extends Exception {
+
+  public static final String THE_BOOK_WITH_ISBN_DOES_NOT_EXIST_MESSAGE = "The book with isbn {0} does not exist";
+
+  public BookNotFoundException(long isbn) {
+    // ISBN passe en String pour ne pas que MessageFormat ajoute le separateur de milliers
+    super(MessageFormat.format(THE_BOOK_WITH_ISBN_DOES_NOT_EXIST_MESSAGE, String.valueOf(isbn)));
+  }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/exception/IllegalBookQuantityException.java

@@ -0,0 +1,12 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.exception;
+
+import java.text.MessageFormat;
+
+public class IllegalBookQuantityException extends Exception {
+
+  public static final String CANNOT_REMOVE_STOCK = "Cannot remove {0} units from {1} units in stock";
+
+  public IllegalBookQuantityException(int needed, int actual) {
+    super(MessageFormat.format(CANNOT_REMOVE_STOCK, needed, actual));
+  }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/exception/NotValidBookException.java

@@ -0,0 +1,8 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.exception;
+
+public class NotValidBookException extends Exception {
+
+  public NotValidBookException(String message) {
+    super(message);
+  }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/repository/BookRepository.java

@@ -0,0 +1,42 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.repository;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.entity.Book;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor
+public final class BookRepository {
+
+  private final List<Book> books = new ArrayList<>();
+
+  public List<Book> findAll() {
+    return books;
+  }
+
+  public void deleteAll() {
+    books.clear();
+  }
+
+  public Book save(Book book) {
+    Optional<Book> existing = findByIsbn(book.getIsbn());
+    existing.ifPresent(books::remove);
+    books.add(book);
+    return book;
+  }
+
+  public Optional<Book> findByIsbn(long isbn) {
+    return books.stream()
+        .filter(b -> b.getIsbn() == isbn)
+        .findFirst();
+  }
+
+  public boolean existsByIsbn(long isbn) {
+    return books.stream().anyMatch(b -> b.getIsbn() == isbn);
+  }
+
+  public void delete(Book book) {
+    books.remove(book);
+  }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/validator/BookValidator.java

@@ -0,0 +1,93 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.validator;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.BookInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.exception.NotValidBookException;
+
+public final class BookValidator {
+
+  public static final int TITLE_MAX_LENGTH = 255;
+
+  public static final String ISBN_MUST_BE_POSITIVE = "Isbn must be a positive number";
+  public static final String TITLE_CANNOT_BE_BLANK = "Title cannot be blank";
+  public static final String TITLE_TOO_LONG = "Title cannot exceed " + TITLE_MAX_LENGTH + " characters";
+  public static final String AUTHOR_CANNOT_BE_BLANK = "Author cannot be blank";
+  public static final String PUBLISHER_CANNOT_BE_BLANK = "Publisher cannot be blank";
+  public static final String PUBLICATION_DATE_REQUIRED = "Publication date is required";
+  public static final String PRICE_MUST_BE_POSITIVE = "Price must be strictly positive";
+  public static final String QUANTITY_MUST_BE_POSITIVE_OR_ZERO = "Quantity must be >= 0";
+  public static final String CATEGORIES_REQUIRED = "At least one category is required";
+  public static final String LANGUAGE_CANNOT_BE_BLANK = "Language cannot be blank";
+
+  private BookValidator() {
+
+  }
+
+  public static void validate(BookInfo book) throws NotValidBookException {
+    validateIsbn(book);
+    validateTitle(book);
+    validateAuthor(book);
+    validatePublisher(book);
+    validatePublicationDate(book);
+    validatePrice(book);
+    validateQuantity(book);
+    validateCategories(book);
+    validateLanguage(book);
+  }
+
+  private static void validateIsbn(BookInfo book) throws NotValidBookException {
+    if (book.isbn() <= 0) {
+      throw new NotValidBookException(ISBN_MUST_BE_POSITIVE);
+    }
+  }
+
+  private static void validateTitle(BookInfo book) throws NotValidBookException {
+    if (book.title() == null || book.title().isBlank()) {
+      throw new NotValidBookException(TITLE_CANNOT_BE_BLANK);
+    }
+    if (book.title().length() > TITLE_MAX_LENGTH) {
+      throw new NotValidBookException(TITLE_TOO_LONG);
+    }
+  }
+
+  private static void validateAuthor(BookInfo book) throws NotValidBookException {
+    if (book.author() == null || book.author().isBlank()) {
+      throw new NotValidBookException(AUTHOR_CANNOT_BE_BLANK);
+    }
+  }
+
+  private static void validatePublisher(BookInfo book) throws NotValidBookException {
+    if (book.publisher() == null || book.publisher().isBlank()) {
+      throw new NotValidBookException(PUBLISHER_CANNOT_BE_BLANK);
+    }
+  }
+
+  private static void validatePublicationDate(BookInfo book) throws NotValidBookException {
+    if (book.publicationDate() == null) {
+      throw new NotValidBookException(PUBLICATION_DATE_REQUIRED);
+    }
+  }
+
+  private static void validatePrice(BookInfo book) throws NotValidBookException {
+    if (book.price() <= 0) {
+      throw new NotValidBookException(PRICE_MUST_BE_POSITIVE);
+    }
+  }
+
+  private static void validateQuantity(BookInfo book) throws NotValidBookException {
+    if (book.quantity() < 0) {
+      throw new NotValidBookException(QUANTITY_MUST_BE_POSITIVE_OR_ZERO);
+    }
+  }
+
+  private static void validateCategories(BookInfo book) throws NotValidBookException {
+    if (book.categories() == null || book.categories().isEmpty()) {
+      throw new NotValidBookException(CATEGORIES_REQUIRED);
+    }
+  }
+
+  private static void validateLanguage(BookInfo book) throws NotValidBookException {
+    if (book.language() == null || book.language().isBlank()) {
+      throw new NotValidBookException(LANGUAGE_CANNOT_BE_BLANK);
+    }
+  }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/customer/CustomerDTO.java

@@ -0,0 +1,15 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.customer;
+
+import java.util.UUID;
+import lombok.Builder;
+import lombok.Getter;
+
+@Builder
+@Getter
+public class CustomerDTO {
+  private final UUID id;
+  private final String firstName;
+  private final String lastName;
+  private final String phoneNumber;
+  private final int loyaltyPoints;
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/customer/CustomerInfo.java

@@ -0,0 +1,4 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.customer;
+
+public record CustomerInfo(String firstName, String lastName, String phoneNumber) {
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/customer/converter/CustomerConverter.java

@@ -0,0 +1,30 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.customer.converter;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.CustomerDTO;
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.CustomerInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.entity.Customer;
+
+public final class CustomerConverter {
+  private CustomerConverter(){
+
+  }
+
+  public static Customer toDomain(CustomerInfo newCustomer) {
+    return Customer.builder()
+        .firstName(newCustomer.firstName())
+        .lastName(newCustomer.lastName())
+        .phoneNumber(newCustomer.phoneNumber())
+        .loyaltyPoints(0)
+        .build();
+  }
+
+  public static CustomerDTO toDTO(Customer customer) {
+    return CustomerDTO.builder()
+        .id(customer.getId())
+        .firstName(customer.getFirstName())
+        .lastName(customer.getLastName())
+        .phoneNumber(customer.getPhoneNumber())
+        .loyaltyPoints(customer.getLoyaltyPoints())
+        .build();
+  }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/customer/entity/Customer.java

@@ -0,0 +1,30 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.customer.entity;
+
+
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.exception.IllegalCustomerPointException;
+import java.util.UUID;
+import lombok.Builder;
+import lombok.Getter;
+
+@Builder
+@Getter
+public class Customer {
+ private UUID id;
+ private String firstName;
+ private String lastName;
+ private String phoneNumber;
+ private int loyaltyPoints;
+
+ public void setRandomUUID() {
+  this.id = UUID.randomUUID();
+ }
+
+ public void addLoyaltyPoints(int loyaltyPointToAdd) {
+  this.loyaltyPoints += loyaltyPointToAdd;
+ }
+
+ public void removeLoyaltyPoints(int loyaltyPointToRemove) throws IllegalCustomerPointException {
+  if (loyaltyPointToRemove > this.loyaltyPoints) throw new IllegalCustomerPointException(loyaltyPointToRemove, this.loyaltyPoints);
+  this.loyaltyPoints -= loyaltyPointToRemove;
+ }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/customer/exception/CustomerNotFoundException.java

@@ -0,0 +1,13 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.customer.exception;
+
+import java.text.MessageFormat;
+import java.util.UUID;
+
+public class CustomerNotFoundException extends Exception {
+
+  public static final String THE_CUSTOMER_WITH_ID_DOES_NOT_EXIST_MESSAGE = "The customer with id {0} does not exist";
+
+  public CustomerNotFoundException(UUID uuid) {
+    super(MessageFormat.format(THE_CUSTOMER_WITH_ID_DOES_NOT_EXIST_MESSAGE, uuid));
+  }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/customer/exception/IllegalCustomerPointException.java

@@ -0,0 +1,13 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.customer.exception;
+
+import java.text.MessageFormat;
+
+public class IllegalCustomerPointException extends Exception {
+
+  public static final String CANNOT_REMOVE_LOYALTY_POINTS = "Cannot remove {0} points from {1} points";
+
+  public IllegalCustomerPointException(int needed, int actual) {
+    super(MessageFormat.format(CANNOT_REMOVE_LOYALTY_POINTS, needed,
+        actual));
+  }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/customer/exception/NotValidCustomerException.java

@@ -0,0 +1,8 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.customer.exception;
+
+public class NotValidCustomerException extends Exception {
+
+  public NotValidCustomerException(String message) {
+    super(message);
+  }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/customer/repository/CustomerRepository.java

@@ -0,0 +1,49 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.customer.repository;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.entity.Customer;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor
+public final class CustomerRepository {
+  private final List<Customer> customers = new ArrayList<>();
+
+  public List<Customer> findAll() {
+    return customers;
+  }
+
+  public void deleteAll() {
+    customers.clear();
+  }
+
+  public Customer save(Customer newCustomer) {
+    Optional<Customer> optionalCustomerWithSameId = this.findById(newCustomer.getId());
+    optionalCustomerWithSameId.ifPresentOrElse(customers::remove, newCustomer::setRandomUUID);
+    this.customers.add(newCustomer);
+    return newCustomer;
+  }
+
+  public Optional<Customer> findById(UUID uuid) {
+    return this.customers.stream()
+        .filter(customer -> customer.getId().equals(uuid))
+        .findFirst();
+  }
+
+  public boolean existsById(UUID uuid) {
+    return this.customers.stream()
+        .anyMatch(customer -> customer.getId().equals(uuid));
+  }
+
+  public Optional<Customer> findByPhoneNumber(String phoneNumber) {
+    return this.customers.stream()
+        .filter(customer -> customer.getPhoneNumber().equals(phoneNumber))
+        .findFirst();
+  }
+
+  public void delete(Customer customer) {
+    this.customers.remove(customer);
+  }
+}

mylibrary/src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/customer/usecase/CustomerUseCase.java

@@ -0,0 +1,81 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.customer.usecase;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.CustomerDTO;
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.CustomerInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.converter.CustomerConverter;
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.entity.Customer;
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.exception.CustomerNotFoundException;
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.exception.IllegalCustomerPointException;
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.exception.NotValidCustomerException;
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.repository.CustomerRepository;
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.validator.CustomerValidator;
+import java.util.Optional;
+import java.util.UUID;
+
+public final class CustomerUseCase {
+
+  private final CustomerRepository customerRepository;
+
+  public CustomerUseCase(CustomerRepository customerRepository) {
+    this.customerRepository = customerRepository;
+  }
+
+  public UUID registerCustomer(CustomerInfo newCustomer) throws NotValidCustomerException {
+    CustomerValidator.validate(newCustomer);
+    Customer customerToRegister = CustomerConverter.toDomain(newCustomer);
+    Customer customerToRegistered = customerRepository.save(customerToRegister);
+    return customerToRegistered.getId();
+  }
+
+  public Optional<CustomerDTO> findCustomerByPhoneNumber(String phoneNumber) {
+    Optional<Customer> optionalCustomer = customerRepository.findByPhoneNumber(phoneNumber);
+    return optionalCustomer.map(CustomerConverter::toDTO);
+  }
+
+  public CustomerDTO updateCustomer(UUID uuid, CustomerInfo customerInfo)
+      throws CustomerNotFoundException, NotValidCustomerException {
+    CustomerValidator.validate(customerInfo);
+    Customer customerByUUID = getCustomerIfDoesNotExistThrowCustomerNotFoundException(
+        uuid);
+    Customer customer = Customer.builder()
+        .id(uuid)
+        .firstName(customerInfo.firstName())
+        .lastName(customerInfo.lastName())
+        .phoneNumber(customerInfo.phoneNumber())
+        .loyaltyPoints(customerByUUID.getLoyaltyPoints())
+        .build();
+    Customer updatedCustomer = customerRepository.save(customer);
+    return CustomerConverter.toDTO(updatedCustomer);
+  }
+
+  public void deleteCustomer(UUID uuid) throws CustomerNotFoundException {
+    Customer customerToDelete = getCustomerIfDoesNotExistThrowCustomerNotFoundException(uuid);
+    this.customerRepository.delete(customerToDelete);
+  }
+
+  public int addLoyaltyPoints(UUID uuid, int loyaltyPointToAdd) throws CustomerNotFoundException {
+    Customer customerToAddLoyaltyPoints = getCustomerIfDoesNotExistThrowCustomerNotFoundException(
+        uuid);
+    customerToAddLoyaltyPoints.addLoyaltyPoints(loyaltyPointToAdd);
+    customerRepository.save(customerToAddLoyaltyPoints);
+    return customerToAddLoyaltyPoints.getLoyaltyPoints();
+  }
+
+  public int subtractLoyaltyPoints(UUID uuid, int loyaltyPointToRemove)
+      throws CustomerNotFoundException, IllegalCustomerPointException {
+    Customer customerToSubtractLoyaltyPoints = getCustomerIfDoesNotExistThrowCustomerNotFoundException(
+        uuid);
+    customerToSubtractLoyaltyPoints.removeLoyaltyPoints(loyaltyPointToRemove);
+    customerRepository.save(customerToSubtractLoyaltyPoints);
+    return customerToSubtractLoyaltyPoints.getLoyaltyPoints();
+  }
+
+  private Customer getCustomerIfDoesNotExistThrowCustomerNotFoundException(UUID uuid)
+      throws CustomerNotFoundException {
+    Optional<Customer> optionalCustomerById = customerRepository.findById(uuid);
+    if (optionalCustomerById.isEmpty()) {
+      throw new CustomerNotFoundException(uuid);
+    }
+    return optionalCustomerById.get();
+  }
+}