#!/bin/bash
# Setup VNC server for headless Obsidian access

set -e

echo "📺 Setting up VNC server for Obsidian GUI access..."

# Install x11vnc (exports existing X display)
echo "Installing x11vnc..."
sudo apt-get update -qq
sudo apt-get install -y -qq x11vnc

# Since Obsidian runs on :99 via Xvfb, we'll use :100 for VNC and point it to the same display
# Or better: use x11vnc to export the existing :99 display

echo "Installing x11vnc (exports existing X display)..."
sudo apt-get install -y -qq x11vnc

# Create systemd service for VNC
sudo tee /etc/systemd/system/vncserver.service > /dev/null << 'EOF'
[Unit]
Description=VNC Server for Xvfb Display :99
After=obsidian.service
Requires=obsidian.service

[Service]
Type=simple
User=intense
Environment="DISPLAY=:99"
ExecStart=/usr/bin/x11vnc -display :99 -forever -nopw -listen localhost
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target
EOF

# Enable and start VNC
sudo systemctl daemon-reload
sudo systemctl enable vncserver.service
sudo systemctl start vncserver.service

echo "✅ VNC server installed!"
echo ""
echo "Starting VNC service..."
sudo systemctl start vncserver.service
sleep 2
sudo systemctl status vncserver.service || true
echo ""
echo "📺 Connect from your local machine:"
echo ""
echo "  1. Open VNC client (TightVNC, RealVNC, VNCViewer, etc.)"
echo "  2. Connect to: localhost:5900"
echo "     (or IP_OF_SERVER:5900 if remote)"
echo "  3. No password required (nopw mode)"
echo ""
echo "Manage VNC:"
echo "  View status:  sudo systemctl status vncserver.service"
echo "  View logs:    sudo journalctl -fu vncserver.service"
echo "  Stop VNC:     sudo systemctl stop vncserver.service"