CryptoLock.java

import java.util.*;

class CryptoLock {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        Auth myAuth = new Auth();

        while (true) {
            System.out.println("1. Register\n2. Login\n3. Exit");
            System.out.print("Choose an option: ");
            int choice = scanner.nextInt();
            scanner.nextLine();

            switch (choice) {
                case 1:
                    registerUser(scanner);
                    break;
                case 2:
                    loginUser(scanner);
                    break;
                case 3:
                    System.out.println("Exiting...");
                    System.exit(0);
                default:
                    System.out.println("Invalid choice. Please try again.");
            }
        }
    }

    static void registerUser(Scanner scanner) {
        System.out.print("Enter username: ");
        String username = scanner.nextLine();
        System.out.print("Enter displayname: ");
        String displayName = scanner.nextLine();
        System.out.print("Enter password: ");
        String password = scanner.nextLine();
        System.out.print("Confirm password: ");
        String confirmPassword = scanner.nextLine();

        if (Auth.checkPasswordMatching(password, confirmPassword)) {
            Auth.registerUser(username, displayName, password);
        } else {
            System.out.println("Passwords do not match.");
        }
    }

    static void loginUser(Scanner scanner) {
        System.out.print("Enter username: ");
        String username = scanner.nextLine();
        System.out.print("Enter password: ");
        String password = scanner.nextLine();

        if (Auth.loginUser(username, password)) {
            System.out.println("Login successful!");
        } else {
            System.out.println("Login failed.");
        }
    }
}