complete Restaurant Database Management System implementation

src/main/java/dev/ui/ConsoleMenu.java

@@ -1,11 +1,22 @@
 package dev.ui;
 
 import java.util.Scanner;
+import dev.model.User;
+import dev.service.AuthService;
+import dev.service.MenuService;
+import dev.service.OrderService;
+import java.lang.reflect.Field;
 
 public class ConsoleMenu {
 
     private final Scanner scanner =
             new Scanner(System.in);
+    private final AuthService authService =
+            new AuthService();
+    private final MenuService menuService =
+            new MenuService();
+    private final OrderService orderService =
+            new OrderService();
 
     public void start() {
 
@@ -18,18 +29,22 @@ public class ConsoleMenu {
             System.out.println("3. Exit");
 
             int choice = scanner.nextInt();
+            scanner.nextLine();
 
             switch (choice) {
 
                 case 1:
                     // TODO
+                    handleLogin();
                     break;
 
                 case 2:
                     // TODO
+                    handleRegister();
                     break;
 
                 case 3:
+                    System.out.println("Goodbye!");
                     return;
 
                 default:
@@ -40,5 +55,83 @@ public class ConsoleMenu {
         }
 
     }
+    private void handleLogin(){
+        System.out.println("\n[Login]");
+        System.out.print("Enter username: ");
+        String username = scanner.nextLine();
+        System.out.print("Enter password: ");
+        String password = scanner.nextLine();
+
+        User loggedInUser = authService.login(username, password);
+        if (loggedInUser != null){
+            System.out.println("Login successful! Welcome, " + username + ".");
+            showUserMenu(loggedInUser);
+        }
+        else{
+            System.out.println("Error: Invalid username or password.");
+        }
+    }
+
+    private void handleRegister(){
+        System.out.println("\n[Register New Account]");
+        System.out.print("Enter username: ");
+        String username = scanner.nextLine();
+        System.out.print("Enter password: ");
+        String password = scanner.nextLine();
+        System.out.print("Enter email (optional, press enter to skip): ");
+        String email = scanner.nextLine();
+        if (email.trim().isEmpty()){
+            email = null;
+        }
+        if (authService.register(username, password, email)){
+            System.out.println("Registration successful! You can now log in.");
+        }
+        else{
+            System.out.println("Registration failed.");
+        }
+    }
+
+    private void showUserMenu(User user){
+        try {
+            Field idField = User.class.getDeclaredField("id");
+            idField.setAccessible(true);
+            int userId = (int) idField.get(user);
+
+            while (true){
+                System.out.println("\n=======================================");
+                System.out.println("          🍽️ MAIN MENU 🍽️");
+                System.out.println("=======================================");
+                System.out.println("1. View Menu");
+                System.out.println("2. Place a New Order");
+                System.out.println("3. View Order History");
+                System.out.println("4. Logout");
+                System.out.print("Choose an option: ");
+
+                int choice = scanner.nextInt();
+                scanner.nextLine();
+
+                switch (choice){
+                    case 1:
+                        menuService.showMenu();
+                        break;
+                    case 2:
+                        menuService.showMenu();
+                        orderService.placeOrder(userId);
+                        break;
+                    case 3:
+                        orderService.showOrderHistory(userId);
+                        break;
+                    case 4:
+                        System.out.println("Logged out successfully.");
+                        return;
+                    default:
+                        System.out.println("Invalid choice.");
+                }
+            }
+        }
+        catch (Exception ex){
+            ex.printStackTrace();
+        }
+    }
 
 }