Supercharge Cursor withIntelligent AI

// Enhanced Cursor with Hyperleap AI
// Request: "Create a user authentication service with JWT"

interface UserAuthService {
  login(credentials: LoginCredentials): Promise<AuthResult>;
  refreshToken(token: string): Promise<AuthResult>;
  logout(userId: string): Promise<void>;
}

// Hyperleap AI + Cursor generates:
class AuthService implements UserAuthService {
  constructor(
    private userRepository: UserRepository,
    private jwtService: JWTService,
    private hashService: HashService
  ) {}

  async login(credentials: LoginCredentials): Promise<AuthResult> {
    // Input validation with detailed error messages
    const validation = await this.validateCredentials(credentials);
    if (!validation.isValid) {
      throw new AuthenticationError(validation.errors);
    }

    // Secure user lookup and password verification
    const user = await this.userRepository.findByEmail(credentials.email);
    const isValidPassword = await this.hashService.compare(
      credentials.password, 
      user.hashedPassword
    );

    if (!isValidPassword) {
      // Rate limiting and security logging
      await this.securityService.logFailedAttempt(credentials.email);
      throw new AuthenticationError('Invalid credentials');
    }

    // Generate JWT tokens with proper expiration
    const tokens = await this.jwtService.generateTokenPair(user.id);
    return { user: this.sanitizeUser(user), ...tokens };
  }
}