Code Editor for app.py

import streamlit as st
import pygame
import time
from streamlit_webrtc import webrtc_streamer
from streamlit_autorefresh import st_autorefresh

# Initialize pygame for joystick
pygame.init()
pygame.joystick.init()

# Initialize session state for metrics
if 'voltage' not in st.session_state:
    st.session_state.voltage = 12.0
if 'speed' not in st.session_state:
    st.session_state.speed = 0.0
if 'messages' not in st.session_state:
    st.session_state.messages = []

# Auto refresh every 1 second for metrics updates
st_autorefresh(interval=1000, key="metrics_refresh")

# Layout setup - Create three columns for metrics
st.markdown("### Vehicle Metrics")
col1, col2, col3 = st.columns(3)

with col1:
    st.metric("Voltage", f"{st.session_state.voltage:.1f}V")
with col2:
    st.metric("Speed", f"{st.session_state.speed:.1f} km/h")
with col3:
    st.metric("Signal Strength", "85%")

# Main content area with two columns
main_col1, main_col2 = st.columns([3, 1])

with main_col1:
    # WebRTC video stream
    st.markdown("### Live Camera Feed")
    webrtc_streamer(
        key="example",
        video_frame_callback=None,
        rtc_configuration={
            "iceServers": [{"urls": ["stun:stun.l.google.com:19302"]}]
        },
        media_stream_constraints={"video": True, "audio": False},
    )
    
    # Joystick status
    st.markdown("### Joystick Status")
    try:
        joystick = pygame.joystick.Joystick(0)
        joystick.init()
        st.success(f"Joystick detected: {joystick.get_name()}")
        
        # Get joystick position (example values)
        x_axis = joystick.get_axis(0)
        y_axis = joystick.get_axis(1)
        
        # Display joystick position
        st.write(f"X-Axis: {x_axis:.2f}")
        st.write(f"Y-Axis: {y_axis:.2f}")
        
    except pygame.error:
        st.error("No joystick detected. Please connect a controller.")

with main_col2:
    st.markdown("### Controls")
    
    # Control buttons
    if st.button("🚨 Emergency Stop", key="stop"):
        st.warning("Emergency Stop Activated!")
    
    if st.button("📸 Take Photo", key="photo"):
        st.info("Photo captured!")
    
    if st.button("🔦 Toggle Lights", key="lights"):
        st.info("Lights toggled!")
    
    if st.button("🔊 Horn", key="horn"):
        st.info("Horn activated!")
        
    # Text command section
    st.markdown("### Send Command")
    command = st.text_input("Enter command:")
    if st.button("Send", key="send_command"):
        if command:
            st.session_state.messages.append(command)
            st.info(f"Command sent: {command}")
            
    # Command history
    st.markdown("### Command History")
    for msg in reversed(st.session_state.messages[-5:]):
        st.text(msg)

# Cleanup
pygame.quit()