start_vnc.sh

#!/bin/bash

# VNC and Gradio Startup Script
# This script starts VNC server, web bridge, and Gradio interface

set -e

echo "🚀 Starting VNC Desktop Environment..."

# Start VNC server
echo "📺 Starting VNC server on port $VNC_PORT..."
export VNC_PORT=${VNC_PORT:-5901}
export VNC_PASSWORD=${VNC_PASSWORD:-computer-agent}

# Set VNC display
export DISPLAY=:99

# Kill any existing VNC servers
pkill -f vnc || true
pkill -f websockify || true

# Start VNC server in background
echo "🔧 Starting TigerVNC server..."
vncserver :99 -geometry 1920x1080 -depth 24 -PasswordFile=/root/.vnc/passwd &
VNC_PID=$!

echo "VNC server started with PID: $VNC_PID"

# Wait for VNC server to be ready
sleep 3

# Start websockify to bridge VNC to web
echo "🌐 Starting Websockify bridge..."
websockify --web /usr/share/novnc 0.0.0.0:$VNC_PORT &
WEBSOCKIFY_PID=$!

echo "Websockify started with PID: $WEBSOCKIFY_PID"

# Start XFCE4 desktop environment
echo "🖥️  Starting XFCE4 desktop..."
export XDG_RUNTIME_DIR=/tmp/runtime-root
export QT_X11_NO_MITSHM=1

# Wait a bit more for VNC to be fully ready
sleep 2

# Start desktop environment in background
startxfce4 &
DESKTOP_PID=$!

echo "Desktop environment started with PID: $DESKTOP_PID"

# Give desktop environment time to start
sleep 5

echo "✅ VNC environment is ready!"
echo "🔗 VNC Port: $VNC_PORT"
echo "🔗 Web Interface: http://localhost:7860"

# Function to cleanup on exit
cleanup() {
    echo "🛑 Shutting down services..."
    kill $VNC_PID $WEBSOCKIFY_PID $DESKTOP_PID 2>/dev/null || true
    pkill -f vnc || true
    pkill -f websockify || true
    pkill -f startxfce4 || true
    exit 0
}

# Trap cleanup signals
trap cleanup SIGTERM SIGINT

# Start Gradio interface in foreground
echo "🌐 Starting Computer-Using Agent interface..."
python computer_agent.py