05_react/unterricht/tag54/react-app/src/components/tables/TableProducts.jsx

@@ -4,7 +4,19 @@ import RowProduct from './content/RowProduct';
 // Reducer (bei größerer Applikaitonsstuktur ausgelagert)
 const initialState = (props) => {
   // Validierung und Error Checks
-  return { items: props.items || [] };
+  items.filter((item) => !Object.hasOwn(item, _id));
+
+  return {
+    items: props.items || [
+      {
+        _id: '1',
+        title: 'Example Product 1',
+        sku: 'ABC1234',
+        stock: 2,
+        price: 15.2,
+      },
+    ],
+  };
 };
 
 const reducer = (state, action) => {
@@ -65,9 +77,9 @@ const TableProducts = (props) => {
   const handleAmount = useCallback((amount, id) => {
     dispatch({ type: 'UPDATE_AMOUNT', payload: { amount, id } });
 
-    // setItems((prevItems) => {
+    setItems((prevItems) => {
-    //   return prevItems.map((item) => (item._id === id ? { ...item, stock: amount } : item));
+      return prevItems.map((item) => (item._id === id ? { ...item, stock: amount } : item));
-    // });
+    });
   }, []);
 
   const handlePrice = useCallback((price, id) => {

webseite-react-php/react-app/package-lock.json

@@ -14,7 +14,7 @@
         "react": "^19.2.8",
         "react-dom": "^19.2.8",
         "react-icons": "^5.7.0",
-        "react-router-dom": "^7.18.2"
+        "react-router-dom": "^7.18.3"
       },
       "devDependencies": {
         "@types/react": "^19.2.18",
@@ -1963,9 +1963,9 @@
       }
     },
     "node_modules/react-router": {
-      "version": "7.18.2",
+      "version": "7.18.3",
-      "resolved": "https://registry.npmjs.org/react-router/-/react-router-7.18.2.tgz",
+      "resolved": "https://registry.npmjs.org/react-router/-/react-router-7.18.3.tgz",
-      "integrity": "sha512-aUVMjFm3GAPTTZL7oYr5E7ETiqfQCHRLH+B+5afnICvf0r7kkK4eR6SMuwbSTJw/7t+12khT/Kahij49fqOCIg==",
+      "integrity": "sha512-gyXgtdr5uACJ5b1Q4udzjVV+tb/rlHIMJKuJ0e89R4Kzgz47z/rgP0dIKxktqIEUhDHluGTPJJH/wRha7CyqsA==",
       "license": "MIT",
       "dependencies": {
         "cookie": "^1.0.1",
@@ -1985,12 +1985,12 @@
       }
     },
     "node_modules/react-router-dom": {
-      "version": "7.18.2",
+      "version": "7.18.3",
-      "resolved": "https://registry.npmjs.org/react-router-dom/-/react-router-dom-7.18.2.tgz",
+      "resolved": "https://registry.npmjs.org/react-router-dom/-/react-router-dom-7.18.3.tgz",
-      "integrity": "sha512-AIKJ/jgGlFb3EbfCXk5Gzshiwt+l3mqbCrNjmEWMMjqQxNJ3svBa6bgzFyCC2Sw3RA0VWF1kg3uQf2OFhxb8hw==",
+      "integrity": "sha512-ytVbyBBM7vMfRCam25r0WMhSVSom909A8p+8m0/f1w853dz/xfFu6etAT2SEbVoSnI+ZoPRDqIsQXVT89gp7kg==",
       "license": "MIT",
       "dependencies": {
-        "react-router": "7.18.2"
+        "react-router": "7.18.3"
       },
       "engines": {
         "node": ">=20.0.0"

webseite-react-php/react-app/package.json

@@ -16,7 +16,7 @@
     "react": "^19.2.8",
     "react-dom": "^19.2.8",
     "react-icons": "^5.7.0",
-    "react-router-dom": "^7.18.2"
+    "react-router-dom": "^7.18.3"
   },
   "devDependencies": {
     "@types/react": "^19.2.18",

webseite-react-php/react-app/src/components/tables/TableProducts.jsx

@@ -3,8 +3,9 @@ import RowProduct from './content/RowProduct';
 import { ProductsProvider, useProductsState } from '../../stores/products';
 
 const TableProductsView = (props) => {
-  const { items } = useProductsState();
+  const { items } = useProductsState(); // const {items} = useContext(ProductsStateContext);
-  // const dispatch = useProductsDispatch()
+
+  // const dispatch = useProductsDispatch() // const dispatch = useContext(ProductsDispatchContext);
 
   //const [{ items }, dispatch] = useReducer(reducer, initialState(props));
 

webseite-react-php/react-app/src/components/tables/content/RowProduct.jsx

@@ -1,7 +1,8 @@
 import { memo, useCallback } from 'react';
 import { useProductsActions } from '../../../stores/products'; // /index.js muss nicht angegeben werden (wg. Bundler)
+
 // import { useProductsDispatch } from '../../../stores/products';
-// import { PRODUCTS_ACTIONS } from '../../../stores/products';
+//import { PRODUCTS_ACTIONS } from '../../../stores/products';
 
 import InputAmount from '../../inputs/InputAmount';
 import InputPrice from '../../inputs/InputPrice';
@@ -11,7 +12,7 @@ const RowProduct = (props) => {
   //const { sku = '', title = '' } = props;
 
   const { updateAmount, updatePrice } = useProductsActions();
-  // const dispatch = useProductsDispatch();
+  // const dispatch = useProductsDispatch(); // const dispatch = useContext(ProductsDispatchContext)
 
   // Eventhandler
   // const handleAmount = useCallback((val) => {
@@ -23,6 +24,7 @@ const RowProduct = (props) => {
   const handleAmount = useCallback(
     (val) => {
       updateAmount(val, _id);
+      // dispatch({type: PRODUCTS_ACTIONS.UPDATE_AMOUNT, payload: {amount: val, id: _id}})
     },
     [updateAmount, _id],
   );

webseite-react-php/react-app/src/stores/products/ProductsStore.jsx

@@ -44,6 +44,7 @@ export const useProductsDispatch = () => {
   return dispatch;
 };
 
+// Factory Function
 export const useProductsActions = () => {
   const dispatch = useProductsDispatch();
 

webseite-react-php/slim-php/.env.example

@@ -0,0 +1,6 @@
+DB_HOST=127.0.0.1
+DB_PORT=8889
+DB_NAME=nerdshop
+DB_USER=root
+DB_PASS=root
+CORS_ORIGIN=http://localhost:5173

webseite-react-php/slim-php/.gitignore

@@ -0,0 +1,2 @@
+/vendor/
+.env

webseite-react-php/slim-php/INSTALLATION.md

@@ -0,0 +1,100 @@
+## MacOS Installation
+
+Um die PHP-Version und Composer aus MAMP standardmäßig in deinem Terminal über die `~/.bashrc` zu nutzen, fügst du den Pfad zur gewünschten PHP-Version deinem `$PATH` voran.
+
+**1. MAMP PHP-Version ermitteln**
+Prüfe im Finder unter `/Applications/MAMP/bin/php/`, welche Versionen installiert sind (z. B. `php8.2.0`).
+
+**2. `.bashrc` bearbeiten**
+Öffne die Datei im Editor:
+
+```bash
+nano ~/.bashrc
+
+```
+
+Füge am Ende folgende Zeilen ein (ersetze `php8.2.0` durch deine tatsächliche Version):
+
+```bash
+# MAMP PHP zum PATH hinzufügen
+export PATH="/Applications/MAMP/bin/php/php8.2.0/bin:$PATH"
+
+# Falls Composer separat als .phar oder Skript liegt, optional ein Alias setzen:
+# alias composer="/Applications/MAMP/bin/php/php8.2.0/bin/php /usr/local/bin/composer"
+
+```
+
+**3. Änderungen anwenden**
+Lade die Konfiguration neu:
+
+```bash
+source ~/.bashrc
+
+```
+
+**4. Überprüfen**
+Teste, ob die Pfade korrekt geladen werden:
+
+```bash
+which php
+php -v
+composer -v
+
+```
+
+> **Hinweis für macOS:** Standardmäßig nutzt das Terminal unter macOS seit macOS Catalina `zsh` statt `bash`. Falls deine Änderungen nach einem Terminal-Neustart nicht greifen, trage die gleichen Zeilen stattdessen in deine `~/.zshrc` ein.
+
+
+## Windows Installation
+
+Unter Windows nutzt du für Bash in der Regel **Git Bash** oder **WSL**. In Git Bash entspricht `~/.bashrc` der Datei `C:\Users\<DeinBenutzer>\.bashrc`.
+
+**1. MAMP PHP-Version ermitteln**
+Prüfe unter `C:\MAMP\bin\php\`, welche PHP-Version installiert ist (z. B. `php8.2.0`).
+
+**2. `.bashrc` in Git Bash anpassen**
+Öffne die Datei in Git Bash:
+
+```bash
+code ~/.bashrc
+
+```****
+
+Füge folgende Zeilen ein (Pfad an deine PHP-Version anpassen):
+
+```bash
+# MAMP PHP zum PATH hinzufügen (Windows-Pfad im POSIX-Format)
+export PATH="/c/MAMP/bin/php/php8.2.0:$PATH"
+
+# Composer Alias (falls composer.phar im MAMP-Verzeichnis oder Benutzerverzeichnis liegt)
+alias composer="/c/MAMP/bin/php/php8.2.0/php.exe /c/ProgramData/ComposerSetup/bin/composer.phar"
+
+```
+
+> Falls Composer als Windows-Batch-Datei (`composer.bat`) installiert ist, reicht bereits der PHP-Eintrag im `PATH`, da Git Bash installierte Windows-Programme direkt aufrufen kann.
+
+**3. Änderungen anwenden**
+
+```bash
+source ~/.bashrc
+
+```
+
+**4. Überprüfen**
+
+```bash
+which php
+php -v
+composer --version
+
+```
+
+---
+
+**Alternative: Systemweit für CMD / PowerShell setzen**
+Falls du PHP auch in der Windows Eingabeaufforderung oder PowerShell nutzen möchtest:
+
+1. `Win + R` drücken, `sysdm.cpl` eingeben und Enter drücken.
+2. Reiter **Erweitert** → **Umgebungsvariablen**.
+3. Unter **Systemvariablen** (oder **Benutzervariablen**) die Variable `Path` auswählen und auf **Bearbeiten** klicken.
+4. Neuen Eintrag hinzufügen: `C:\MAMP\bin\php\php8.2.0` und ganz nach oben schieben.

webseite-react-php/slim-php/README.md

@@ -0,0 +1,28 @@
+Die MySQL-Datenbank und die Slim-REST-API sind eingerichtet und getestet.
+
+**Datenbank `nerdshop`** (MAMP, Port 8889) enthält die Tabelle `products` mit den 13 Einträgen aus der JSON-Datei. Die Mongo-IDs bleiben als `id` erhalten; die API liefert sie als `_id`, damit die React-App kompatibel bleibt.
+
+**API läuft auf** [http://localhost:8080](http://localhost:8080)
+
+| Methode  | URL              | Status        |
+| -------- | ---------------- | ------------- |
+| `GET`    | `/products`      | alle Produkte |
+| `GET`    | `/products/{id}` | ein Produkt   |
+| `POST`   | `/products`      | anlegen       |
+| `PUT`    | `/products/{id}` | aktualisieren |
+| `DELETE` | `/products/{id}` | löschen       |
+
+CORS ist für `http://localhost:5173` (Vite) gesetzt. In der React-App reicht später:
+
+```js
+fetch('http://localhost:8080/products');
+```
+
+Server neu starten:
+
+```bash
+cd slim-php-framework
+php -S localhost:8080 -t public public/router.php
+```
+
+Falls MAMP andere Zugangsdaten nutzt, stehen sie in `slim-php-framework/.env`.

webseite-react-php/slim-php/composer.json

@@ -0,0 +1,22 @@
+{
+  "name": "nerdshop/slim-api",
+  "version": "1.0.0",
+  "description": "Nerdshop REST API",
+  "require": {
+    "php": "^8.1",
+    "ext-pdo": "*",
+    "ext-pdo_mysql": "*",
+    "php-di/php-di": "^7.0",
+    "slim/psr7": "^1.7",
+    "slim/slim": "^4.14",
+    "vlucas/phpdotenv": "^5.6"
+  },
+  "autoload": {
+    "psr-4": {
+      "App\\": "src/"
+    }
+  },
+  "config": {
+    "sort-packages": true
+  }
+}

webseite-react-php/slim-php/public/.htaccess

@@ -0,0 +1,4 @@
+RewriteEngine On
+RewriteCond %{REQUEST_FILENAME} !-f
+RewriteCond %{REQUEST_FILENAME} !-d
+RewriteRule ^ index.php [QSA,L]

webseite-react-php/slim-php/public/index.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+use App\Config;
+use App\Middleware\CorsMiddleware;
+use App\Repository\ProductRepository;
+use DI\Container;
+use Slim\Factory\AppFactory;
+
+require __DIR__ . '/../vendor/autoload.php';
+
+$dotenv = Dotenv\Dotenv::createImmutable(dirname(__DIR__));
+$dotenv->safeLoad();
+
+$container = new Container();
+$container->set(PDO::class, static fn () => Config::pdo());
+$container->set(
+    ProductRepository::class,
+    static fn ($c) => new ProductRepository($c->get(PDO::class))
+);
+
+AppFactory::setContainer($container);
+$app = AppFactory::create();
+
+$app->addBodyParsingMiddleware();
+$app->addRoutingMiddleware();
+$app->addErrorMiddleware(true, true, true);
+$app->add(new CorsMiddleware());
+
+(require __DIR__ . '/../src/Routes/productRoutes.php')($app);
+
+$app->run();

webseite-react-php/slim-php/public/router.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+$uri = urldecode(parse_url($_SERVER['REQUEST_URI'] ?? '/', PHP_URL_PATH) ?: '/');
+
+if ($uri !== '/' && file_exists(__DIR__ . $uri)) {
+    return false;
+}
+
+require __DIR__ . '/index.php';

webseite-react-php/slim-php/sql/nerdshop.sql

@@ -32,3 +32,26 @@ INSERT INTO products (id, title, sku, stock, price, description, tagline) VALUES
 ('675bee96bb39023b77e6cda3', 'Automatic Plant Waterer with Compliment Dispenser', 'GRD0334', 17, 69.99, 'Keep your plants happy and hydrated with automatic watering and daily compliments.', 'Nurture your plants, boost their self-esteem.'),
 ('675bee96bb39023b77e6cda4', 'Self-Stirring Cereal Bowl', 'KIT0445', 55, 24.95, 'Enjoy perfectly crunchy cereal every time with this self-stirring bowl.', 'No more soggy surprises.'),
 ('675bee96bb39023b77e6cda5', 'Polygon Planet Lamp', 'LMP0556', 4, 39.90, 'Transform your space with the enchanting glow of a planetarium-inspired lamp.', 'Bring the cosmos into your home.');
+
+CREATE TABLE IF NOT EXISTS users (
+  id            INT UNSIGNED  NOT NULL AUTO_INCREMENT,
+  username      VARCHAR(64)   NOT NULL,
+  email         VARCHAR(255)  NOT NULL,
+  password_hash VARCHAR(255)   NOT NULL,
+  token         VARCHAR(64)    NULL DEFAULT NULL,
+  created_at    TIMESTAMP       NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (id),
+  UNIQUE KEY uq_users_username (username),
+  UNIQUE KEY uq_users_email (email),
+  KEY idx_users_token (token)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+INSERT INTO users (username, email, password_hash)
+VALUES (
+  'megaman',
+  'order@gkontra.de',
+  '$2y$12$CdOg.e08jP968kQoA298Ne92r9pyEYBfSya4gFWQCh.X8gJhmDaVW'
+)
+ON DUPLICATE KEY UPDATE
+  email = VALUES(email),
+  password_hash = VALUES(password_hash);

webseite-react-php/slim-php/sql/users.sql

@@ -0,0 +1,24 @@
+USE nerdshop;
+
+CREATE TABLE IF NOT EXISTS users (
+  id            INT UNSIGNED  NOT NULL AUTO_INCREMENT,
+  username      VARCHAR(64)   NOT NULL,
+  email         VARCHAR(255)  NOT NULL,
+  password_hash VARCHAR(255)   NOT NULL,
+  token         VARCHAR(64)    NULL DEFAULT NULL,
+  created_at    TIMESTAMP       NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (id),
+  UNIQUE KEY uq_users_username (username),
+  UNIQUE KEY uq_users_email (email),
+  KEY idx_users_token (token)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+INSERT INTO users (username, email, password_hash)
+VALUES (
+  'megaman',
+  'order@gkontra.de',
+  '$2y$12$CdOg.e08jP968kQoA298Ne92r9pyEYBfSya4gFWQCh.X8gJhmDaVW'
+)
+ON DUPLICATE KEY UPDATE
+  email = VALUES(email),
+  password_hash = VALUES(password_hash);

webseite-react-php/slim-php/src/Config.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App;
+
+use PDO;
+
+final class Config
+{
+    public static function pdo(): PDO
+    {
+        $dsn = sprintf(
+            'mysql:host=%s;port=%s;dbname=%s;charset=utf8mb4',
+            $_ENV['DB_HOST'] ?? '127.0.0.1',
+            $_ENV['DB_PORT'] ?? '3306',
+            $_ENV['DB_NAME'] ?? 'nerdshop'
+        );
+
+        return new PDO(
+            $dsn,
+            $_ENV['DB_USER'] ?? 'root',
+            $_ENV['DB_PASS'] ?? '',
+            [
+                PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+                PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+            ]
+        );
+    }
+}

webseite-react-php/slim-php/src/Domain/Product.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Domain;
+
+final class Product
+{
+    public function __construct(
+        public string $id,
+        public string $title,
+        public string $sku,
+        public int $stock,
+        public float $price,
+        public string $description,
+        public string $tagline,
+    ) {
+    }
+
+    public static function fromRow(array $row): self
+    {
+        return new self(
+            id: $row['id'],
+            title: $row['title'],
+            sku: $row['sku'],
+            stock: (int) $row['stock'],
+            price: (float) $row['price'],
+            description: $row['description'],
+            tagline: $row['tagline'],
+        );
+    }
+
+    /** Kompatibel mit der React-App (_id statt id). */
+    public function toArray(): array
+    {
+        return [
+            '_id' => $this->id,
+            'title' => $this->title,
+            'sku' => $this->sku,
+            'stock' => $this->stock,
+            'price' => $this->price,
+            'description' => $this->description,
+            'tagline' => $this->tagline,
+        ];
+    }
+}

webseite-react-php/slim-php/src/Domain/User.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Domain;
+
+final class User
+{
+    public function __construct(
+        public int $id,
+        public string $username,
+        public string $email,
+        public string $passwordHash,
+        public ?string $token,
+        public string $createdAt,
+    ) {
+    }
+
+    public static function fromRow(array $row): self
+    {
+        return new self(
+            id: (int) $row['id'],
+            username: $row['username'],
+            email: $row['email'],
+            passwordHash: $row['password_hash'],
+            token: $row['token'] ?: null,
+            createdAt: $row['created_at'],
+        );
+    }
+
+    public function toArray(): array
+    {
+        return [
+            'id' => $this->id,
+            'username' => $this->username,
+            'email' => $this->email,
+            'created_at' => $this->createdAt,
+        ];
+    }
+}

webseite-react-php/slim-php/src/Middleware/CorsMiddleware.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Middleware;
+
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface as Handler;
+use Slim\Psr7\Response as SlimResponse;
+
+final class CorsMiddleware implements MiddlewareInterface
+{
+    public function process(Request $request, Handler $handler): Response
+    {
+        $origin = $_ENV['CORS_ORIGIN'] ?? 'http://localhost:5173';
+
+        if ($request->getMethod() === 'OPTIONS') {
+            $response = new SlimResponse(204);
+        } else {
+            $response = $handler->handle($request);
+        }
+
+        return $response
+            ->withHeader('Access-Control-Allow-Origin', $origin)
+            ->withHeader('Access-Control-Allow-Headers', 'Content-Type, Authorization')
+            ->withHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, PATCH, DELETE, OPTIONS');
+    }
+}

webseite-react-php/slim-php/src/Repository/ProductRepository.php

@@ -0,0 +1,115 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repository;
+
+use App\Domain\Product;
+use PDO;
+
+final class ProductRepository
+{
+    public function __construct(private PDO $pdo)
+    {
+    }
+
+    /** @return Product[] */
+    public function findAll(): array
+    {
+        $stmt = $this->pdo->query('SELECT * FROM products ORDER BY sku');
+
+        return array_map(Product::fromRow(...), $stmt->fetchAll());
+    }
+
+    public function findById(string $id): ?Product
+    {
+        $stmt = $this->pdo->prepare('SELECT * FROM products WHERE id = :id');
+        $stmt->execute(['id' => $id]);
+        $row = $stmt->fetch();
+
+        return $row ? Product::fromRow($row) : null;
+    }
+
+    public function create(array $data): Product
+    {
+        $id = $data['_id'] ?? $this->generateId();
+
+        $stmt = $this->pdo->prepare(
+            'INSERT INTO products (id, title, sku, stock, price, description, tagline)
+             VALUES (:id, :title, :sku, :stock, :price, :description, :tagline)'
+        );
+        $stmt->execute([
+            'id' => $id,
+            'title' => $data['title'],
+            'sku' => $data['sku'],
+            'stock' => (int) $data['stock'],
+            'price' => (float) $data['price'],
+            'description' => $data['description'],
+            'tagline' => $data['tagline'],
+        ]);
+
+        $product = $this->findById($id);
+
+        if ($product === null) {
+            throw new \RuntimeException('Product could not be created');
+        }
+
+        return $product;
+    }
+
+    public function update(string $id, array $data): ?Product
+    {
+        if ($this->findById($id) === null) {
+            return null;
+        }
+
+        $stmt = $this->pdo->prepare(
+            'UPDATE products
+             SET title = :title, sku = :sku, stock = :stock,
+                 price = :price, description = :description, tagline = :tagline
+             WHERE id = :id'
+        );
+        $stmt->execute([
+            'id' => $id,
+            'title' => $data['title'],
+            'sku' => $data['sku'],
+            'stock' => (int) $data['stock'],
+            'price' => (float) $data['price'],
+            'description' => $data['description'],
+            'tagline' => $data['tagline'],
+        ]);
+
+        return $this->findById($id);
+    }
+
+    public function patch(string $id, array $data): ?Product
+    {
+        $current = $this->findById($id);
+
+        if ($current === null) {
+            return null;
+        }
+
+        return $this->update($id, [
+            'title' => $data['title'] ?? $current->title,
+            'sku' => $data['sku'] ?? $current->sku,
+            'stock' => array_key_exists('stock', $data) ? (int) $data['stock'] : $current->stock,
+            'price' => array_key_exists('price', $data) ? (float) $data['price'] : $current->price,
+            'description' => $data['description'] ?? $current->description,
+            'tagline' => $data['tagline'] ?? $current->tagline,
+        ]);
+    }
+
+    public function delete(string $id): bool
+    {
+        $stmt = $this->pdo->prepare('DELETE FROM products WHERE id = :id');
+        $stmt->execute(['id' => $id]);
+
+        return $stmt->rowCount() > 0;
+    }
+
+    private function generateId(): string
+    {
+        return bin2hex(random_bytes(12));
+    }
+}

webseite-react-php/slim-php/src/Repository/UserRepository.php

@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repository;
+
+use App\Domain\User;
+use PDO;
+
+final class UserRepository
+{
+    public function __construct(private PDO $pdo)
+    {
+    }
+
+    /** @return User[] */
+    public function findAll(): array
+    {
+        $stmt = $this->pdo->query('SELECT * FROM users ORDER BY username');
+
+        return array_map(User::fromRow(...), $stmt->fetchAll());
+    }
+
+    public function findById(int $id): ?User
+    {
+        $stmt = $this->pdo->prepare('SELECT * FROM users WHERE id = :id');
+        $stmt->execute(['id' => $id]);
+        $row = $stmt->fetch();
+
+        return $row ? User::fromRow($row) : null;
+    }
+
+    public function findByUsernameOrEmail(string $login): ?User
+    {
+        $stmt = $this->pdo->prepare(
+            'SELECT * FROM users WHERE username = :login OR email = :login LIMIT 1'
+        );
+        $stmt->execute(['login' => $login]);
+        $row = $stmt->fetch();
+
+        return $row ? User::fromRow($row) : null;
+    }
+}

webseite-react-php/slim-php/src/Routes/productRoutes.php

@@ -0,0 +1,155 @@
+<?php
+
+declare(strict_types=1);
+
+use App\Repository\ProductRepository;
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+use Slim\App;
+
+return function (App $app): void {
+    $container = $app->getContainer();
+
+    if ($container === null) {
+        throw new RuntimeException('DI container is not configured');
+    }
+
+    $json = static function (Response $response, mixed $data, int $status = 200): Response {
+        $response->getBody()->write(json_encode($data, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES));
+
+        return $response
+            ->withHeader('Content-Type', 'application/json')
+            ->withStatus($status);
+    };
+
+    $requiredFields = ['title', 'sku', 'stock', 'price', 'description', 'tagline'];
+
+    $validate = static function (array $data) use ($requiredFields): ?string {
+        foreach ($requiredFields as $field) {
+            if (!isset($data[$field]) || $data[$field] === '') {
+                return "Missing field: {$field}";
+            }
+        }
+
+        return null;
+    };
+
+    $app->get('/', function (Request $request, Response $response) use ($json): Response {
+
+        return $json($response, [
+            'name' => 'Nerdshop API',
+            'endpoints' => [
+                'GET /products',
+                'GET /products/{id}',
+                'POST /products',
+                'PUT /products/{id}',
+                'PATCH /products/{id}',
+                'DELETE /products/{id}',
+            ],
+        ]);
+    });
+
+    // app.get('/products', (req,res) => {
+    //  const products =  productManager.getAll();
+    //  res.send(products);
+    // })
+
+    $app->get('/products', function (Request $request, Response $response) use ($container, $json): Response {
+        $repo = $container->get(ProductRepository::class);
+        $items = array_map(static fn($product) => $product->toArray(), $repo->findAll());
+
+        return $json($response, $items);
+    });
+
+    $app->get('/products/{id}', function (Request $request, Response $response, array $args) use ($container, $json): Response {
+        $product = $container->get(ProductRepository::class)->findById($args['id']);
+
+        if ($product === null) {
+            return $json($response, ['error' => 'Product not found'], 404);
+        }
+
+        return $json($response, $product->toArray());
+    });
+
+    $app->post('/products', function (Request $request, Response $response) use ($container, $json, $validate): Response {
+        $data = (array) $request->getParsedBody();
+        $error = $validate($data);
+
+        if ($error !== null) {
+            return $json($response, ['error' => $error], 400);
+        }
+
+        try {
+            $product = $container->get(ProductRepository::class)->create($data);
+        } catch (\PDOException $exception) {
+            if ((int) $exception->getCode() === 23000) {
+                return $json($response, ['error' => 'SKU already exists'], 409);
+            }
+
+            throw $exception;
+        }
+
+        return $json($response, $product->toArray(), 201);
+    });
+
+    $app->put('/products/{id}', function (Request $request, Response $response, array $args) use ($container, $json, $validate): Response {
+        $data = (array) $request->getParsedBody();
+        $error = $validate($data);
+
+        if ($error !== null) {
+            return $json($response, ['error' => $error], 400);
+        }
+
+        try {
+            $product = $container->get(ProductRepository::class)->update($args['id'], $data);
+        } catch (\PDOException $exception) {
+            if ((int) $exception->getCode() === 23000) {
+                return $json($response, ['error' => 'SKU already exists'], 409);
+            }
+
+            throw $exception;
+        }
+
+        if ($product === null) {
+            return $json($response, ['error' => 'Product not found'], 404);
+        }
+
+        return $json($response, $product->toArray());
+    });
+
+    $app->patch('/products/{id}', function (Request $request, Response $response, array $args) use ($container, $json): Response {
+        $data = (array) $request->getParsedBody();
+        $allowed = ['title', 'sku', 'stock', 'price', 'description', 'tagline'];
+        $patch = array_intersect_key($data, array_flip($allowed));
+
+        if ($patch === []) {
+            return $json($response, ['error' => 'No fields to update'], 400);
+        }
+
+        try {
+            $product = $container->get(ProductRepository::class)->patch($args['id'], $patch);
+        } catch (\PDOException $exception) {
+            if ((int) $exception->getCode() === 23000) {
+                return $json($response, ['error' => 'SKU already exists'], 409);
+            }
+
+            throw $exception;
+        }
+
+        if ($product === null) {
+            return $json($response, ['error' => 'Product not found'], 404);
+        }
+
+        return $json($response, $product->toArray());
+    });
+
+    $app->delete('/products/{id}', function (Request $request, Response $response, array $args) use ($container, $json): Response {
+        $deleted = $container->get(ProductRepository::class)->delete($args['id']);
+
+        if (!$deleted) {
+            return $json($response, ['error' => 'Product not found'], 404);
+        }
+
+        return $response->withStatus(204);
+    });
+};