Code Editor for app.py

import streamlit as st
import time

# Initialize session state variables
if "authenticated" not in st.session_state:
    st.session_state.authenticated = False

if "failed_attempts" not in st.session_state:
    st.session_state.failed_attempts = 0

# Credentials (in a real app, these should be stored securely)
CORRECT_USERNAME = "demo"
CORRECT_PASSWORD = "password123"

def authenticate(username, password):
    if username == CORRECT_USERNAME and password == CORRECT_PASSWORD:
        st.session_state.authenticated = True
        st.session_state.failed_attempts = 0
        st.toast("Login successful! 🎉", icon="✅")
        st.balloons()
    else:
        st.session_state.failed_attempts += 1
        st.error(f"Invalid credentials! Attempt {st.session_state.failed_attempts}")
        if st.session_state.failed_attempts >= 3:
            st.warning("Too many failed attempts. Please wait 5 seconds...")
            time.sleep(5)
            st.session_state.failed_attempts = 0

# Main app layout
st.title("🔐 Secure Application Demo")

if not st.session_state.authenticated:
    with st.form("login_form"):
        st.subheader("Please Login")
        username = st.text_input("Username")
        password = st.text_input("Password", type="password")
        submit = st.form_submit_button("Login")
        
        if submit:
            authenticate(username, password)
            
    # Show hint
    with st.expander("Need a hint?"):
        st.write("Username: demo")
        st.write("Password: password123")

else:
    # The protected content
    st.success("Welcome to the secure area! 🚀")
    
    st.header("Random Fun Facts Dashboard")
    
    # Create some interesting content
    col1, col2 = st.columns(2)
    
    with col1:
        st.metric("Daily Active Users", "1,234", "+12%")
        st.bar_chart({"Data": [1, 5, 2, 6, 2, 1]})
        
    with col2:
        st.metric("Customer Satisfaction", "98%", "+2%")
        st.line_chart({"Trends": [3, 1, 4, 1, 5, 9]})
    
    # Add some interactive elements
    if st.button("Generate Snow Effect"):
        st.snow()
        
    # Logout button
    if st.button("Logout"):
        st.session_state.authenticated = False
        st.rerun()