Robust Rails Sessions Generator

sequenceDiagram
    participant User
    participant SessionsController
    participant UserModel
    participant AuthConcern as AuthenticationConcern
    participant SecuritySystem
    participant SessionModel

    User->>SessionsController: POST /session (login attempt)
    SessionsController->>UserModel: authenticate(email, password)

    alt Suspicious Login
        SessionsController->>SecuritySystem: Analyze behavior patterns
        SecuritySystem-->>SessionsController: Trigger decoy session
        SessionsController->>AuthConcern: start_decoy_session_for(user)
        AuthConcern->>SessionModel: create_fake_session()
        SessionsController->>User: Redirect to decoy environment
    else Authentication Successful
        UserModel-->>SessionsController: User object
        SessionsController->>SecuritySystem: Biometric check/humor test
        SecuritySystem-->>SessionsController: Pass verification
        SessionsController->>AuthConcern: start_new_session_for(user)
        AuthConcern->>SessionModel: create real session
        SessionsController->>User: Redirect to dashboard
    else Authentication Failed
        UserModel-->>SessionsController: nil
        SessionsController->>User: Redirect to login page with error
    end

    alt Dynamic Expiry
        SessionModel->>SecuritySystem: Evaluate user activity
        SecuritySystem-->>SessionModel: Randomize session expiration
    else Traditional Expiry
        SessionModel-->>SessionsController: Session expires normally
    end