#!/bin/bash

# Imperial Command Center - Linux Deployment Script
# This script builds and deploys the kiosk application

set -e

# Configuration
APP_NAME="imperial-command-center"
INSTALL_DIR="/opt/${APP_NAME}"
SERVICE_NAME="${APP_NAME}"
KIOSK_USER="kiosk"

echo "========================================="
echo "Imperial Command Center - Linux Deployer"
echo "========================================="

# Check if running as root
if [ "$EUID" -ne 0 ]; then
  echo "Please run as root (sudo)"
  exit 1
fi

# Build the application
echo ""
echo "[1/6] Building application..."
npm run build:linux

# Find the AppImage
APPIMAGE=$(find release -name "*.AppImage" -type f | head -n 1)
if [ -z "$APPIMAGE" ]; then
  echo "Error: AppImage not found in release directory"
  exit 1
fi

echo "Found AppImage: $APPIMAGE"

# Create installation directory
echo ""
echo "[2/6] Installing to ${INSTALL_DIR}..."
mkdir -p "${INSTALL_DIR}"
cp "$APPIMAGE" "${INSTALL_DIR}/${APP_NAME}.AppImage"
chmod +x "${INSTALL_DIR}/${APP_NAME}.AppImage"

# Copy environment file if it exists
if [ -f ".env" ]; then
  cp .env "${INSTALL_DIR}/.env"
  echo "Copied .env file"
fi

# Create kiosk user if it doesn't exist
echo ""
echo "[3/6] Setting up kiosk user..."
if ! id "${KIOSK_USER}" &>/dev/null; then
  useradd -m -s /bin/bash "${KIOSK_USER}"
  echo "Created user: ${KIOSK_USER}"
else
  echo "User ${KIOSK_USER} already exists"
fi

# Set permissions
chown -R "${KIOSK_USER}:${KIOSK_USER}" "${INSTALL_DIR}"

# Create systemd service
echo ""
echo "[4/6] Creating systemd service..."
cat > "/etc/systemd/system/${SERVICE_NAME}.service" << EOF
[Unit]
Description=Imperial Command Center Kiosk
After=graphical.target network.target
Wants=graphical.target

[Service]
Type=simple
User=${KIOSK_USER}
Environment=DISPLAY=:0
Environment=XAUTHORITY=/home/${KIOSK_USER}/.Xauthority
WorkingDirectory=${INSTALL_DIR}
ExecStart=${INSTALL_DIR}/${APP_NAME}.AppImage --no-sandbox
Restart=always
RestartSec=5

[Install]
WantedBy=graphical.target
EOF

# Create X session script for autologin
echo ""
echo "[5/6] Configuring kiosk session..."
mkdir -p /home/${KIOSK_USER}/.config/autostart

cat > "/home/${KIOSK_USER}/.xinitrc" << EOF
#!/bin/bash
# Disable screen blanking
xset s off
xset -dpms
xset s noblank

# Hide cursor after 5 seconds of inactivity
unclutter -idle 5 &

# Start the application
exec ${INSTALL_DIR}/${APP_NAME}.AppImage --no-sandbox
EOF

chmod +x "/home/${KIOSK_USER}/.xinitrc"
chown "${KIOSK_USER}:${KIOSK_USER}" "/home/${KIOSK_USER}/.xinitrc"

# Enable and start the service
echo ""
echo "[6/6] Enabling service..."
systemctl daemon-reload
systemctl enable "${SERVICE_NAME}.service"

echo ""
echo "========================================="
echo "Deployment complete!"
echo "========================================="
echo ""
echo "The application has been installed to: ${INSTALL_DIR}"
echo ""
echo "To start the application manually:"
echo "  sudo systemctl start ${SERVICE_NAME}"
echo ""
echo "To view logs:"
echo "  sudo journalctl -u ${SERVICE_NAME} -f"
echo ""
echo "To configure autologin for kiosk mode, edit:"
echo "  /etc/lightdm/lightdm.conf (for LightDM)"
echo "  or /etc/gdm3/custom.conf (for GDM)"
echo ""
echo "Add these lines for LightDM autologin:"
echo "  [Seat:*]"
echo "  autologin-user=${KIOSK_USER}"
echo "  autologin-session=openbox"
echo ""