WS10

src/main/java/dev/service/AuthService.java

@@ -1,23 +1,46 @@
 package dev.service;
 
+import dev.dao.UserDao;
 import dev.model.User;
 
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.Base64;
+
 public class AuthService {
 
+    private final UserDao userDao = new UserDao();
+
     public boolean register(String username, String password, String email) {
+        if (userDao.findByUsername(username) != null) {
+            return false;
+        }
 
-        // TODO:
-        // Validate and register user
+        User user = new User();
+        user.setUsername(username);
+        user.setPassword(hashPassword(password));
+        user.setEmail(email);
 
-        return false;
+        return userDao.save(user);
     }
 
     public User login(String username, String password) {
+        User user = userDao.findByUsername(username);
 
-        // TODO:
-        // Authenticate user
+        if (user != null && user.getPassword().equals(hashPassword(password))) {
+            return user;
+        }
 
         return null;
     }
 
+    private String hashPassword(String password) {
+        try {
+            MessageDigest md = MessageDigest.getInstance("SHA-256");
+            byte[] hash = md.digest(password.getBytes());
+            return Base64.getEncoder().encodeToString(hash);
+        } catch (NoSuchAlgorithmException e) {
+            throw new RuntimeException("Error hashing password", e);
+        }
+    }
 }

src/main/java/dev/service/MenuService.java

@@ -1,12 +1,21 @@
 package dev.service;
 
+import dev.dao.MenuItemDao;
+import dev.model.MenuItem;
+
+import java.util.List;
+
 public class MenuService {
 
+    private final MenuItemDao menuItemDao = new MenuItemDao();
+
     public void showMenu() {
+        List<MenuItem> items = menuItemDao.getAllItems();
 
-        // TODO:
-        // Display menu items
-
+        System.out.println("\nAvailable Items:");
+        for (MenuItem item : items) {
+            System.out.printf("%d. %s - $%.2f%n", item.getId(), item.getName(), item.getPrice());
+        }
+        System.out.println();
     }
-
 }

src/main/java/dev/service/OrderService.java

@@ -1,26 +1,80 @@
 package dev.service;
 
+import dev.dao.MenuItemDao;
+import dev.dao.OrderDao;
+import dev.model.MenuItem;
+import dev.model.Order;
+import dev.model.OrderDetail;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
 public class OrderService {
 
-    public void placeOrder(int userId) {
+    private final OrderDao orderDao = new OrderDao();
+    private final MenuItemDao menuItemDao = new MenuItemDao();
 
-        // TODO:
-        // Create order
+    public void placeOrder(int userId, Map<Integer, Integer> cart) {
+        Order order = new Order();
+        order.setUserId(userId);
+        order.setCreatedAt(LocalDateTime.now());
 
+        double total = 0;
+        List<OrderDetail> details = new ArrayList<>();
+
+        for (Map.Entry<Integer, Integer> entry : cart.entrySet()) {
+            MenuItem item = menuItemDao.getById(entry.getKey());
+            if (item != null) {
+                OrderDetail detail = new OrderDetail();
+                detail.setMenuItemId(item.getId());
+                detail.setQuantity(entry.getValue());
+                detail.setPrice(item.getPrice());
+
+                details.add(detail);
+                total += item.getPrice() * entry.getValue();
+            }
+        }
+
+        order.setTotalPrice(total);
+        int orderId = orderDao.saveOrder(order, details);
+
+        System.out.println("\nOrder saved successfully!");
+        printReceipt(orderId);
     }
 
     public void printReceipt(int orderId) {
+        Order order = orderDao.getOrderById(orderId);
+        List<OrderDetail> details = orderDao.getOrderDetails(orderId);
 
-        // TODO:
-        // Print order receipt
+        System.out.println("\n[Order Summary / Receipt]");
+        System.out.println("---------------------------------------");
+        System.out.printf("%-15s %-5s %-10s %-10s%n", "Item", "Qty", "Unit", "Total");
+        System.out.println("---------------------------------------");
 
+        for (OrderDetail detail : details) {
+            MenuItem item = menuItemDao.getById(detail.getMenuItemId());
+            double subtotal = detail.getQuantity() * detail.getPrice();
+            System.out.printf("%-15s %-5d $%-9.2f $%.2f%n", item.getName(), detail.getQuantity(), detail.getPrice(), subtotal);
+        }
+
+        System.out.println("---------------------------------------");
+        System.out.printf("Final Total: $%.2f%n", order.getTotalPrice());
     }
 
     public void showOrderHistory(int userId) {
+        List<Order> orders = orderDao.getOrdersByUserId(userId);
 
-        // TODO:
-        // Display user's order history
+        System.out.println("\n[Order History]");
+        if (orders.isEmpty()) {
+            System.out.println("You have no past orders.");
+            return;
+        }
 
+        for (Order order : orders) {
+            System.out.printf("Order ID: %d | Date: %s | Total Spent: $%.2f%n",
+                    order.getId(), order.getCreatedAt(), order.getTotalPrice());
+        }
     }
-
 }