#!/bin/bash
# Script to hide desktop UI and ensure video player is always on top

# Function to hide desktop elements
hide_desktop_ui() {
    echo "Hiding desktop UI elements..."
    
    # Hide taskbar/panel (works with most desktop environments)
    pkill -f "lxpanel" 2>/dev/null || true
    pkill -f "xfce4-panel" 2>/dev/null || true
    pkill -f "gnome-panel" 2>/dev/null || true
    pkill -f "mate-panel" 2>/dev/null || true
    
    # Hide desktop icons
    gsettings set org.gnome.desktop.background show-desktop-icons false 2>/dev/null || true
    gsettings set org.nemo.desktop show-desktop-icons false 2>/dev/null || true
    
    # Disable screen saver and power management
    xset s off 2>/dev/null || true
    xset -dpms 2>/dev/null || true
    xset s noblank 2>/dev/null || true
    
    # Disable mouse cursor after 5 seconds of inactivity
    unclutter -idle 5 -root 2>/dev/null || true
    
    echo "Desktop UI elements hidden"
}

# Function to ensure VLC stays on top
keep_vlc_on_top() {
    echo "Ensuring VLC stays on top..."
    
    # Wait for VLC to start
    sleep 10
    
    # Use wmctrl to keep VLC on top
    while true; do
        if pgrep -f "vlc" > /dev/null; then
            wmctrl -r "VLC media player" -b add,above 2>/dev/null || true
            wmctrl -r "vlc" -b add,above 2>/dev/null || true
        fi
        sleep 5
    done
}

# Function to start video player service
start_video_player() {
    echo "Starting video player service..."
    
    # Add user to gpio group if not already added
    if ! groups $USER | grep -q gpio; then
        echo "Adding user to gpio group..."
        sudo usermod -a -G gpio $USER
        echo "Please log out and log back in for GPIO group changes to take effect"
    fi
    
    # Start the video player service
    sudo systemctl enable video-player.service
    sudo systemctl start video-player.service
    
    echo "Video player service started"
}

# Main execution
case "$1" in
    "hide")
        hide_desktop_ui
        ;;
    "keep-top")
        keep_vlc_on_top
        ;;
    "start")
        start_video_player
        ;;
    "all")
        hide_desktop_ui
        start_video_player
        keep_vlc_on_top &
        ;;
    *)
        echo "Usage: $0 {hide|keep-top|start|all}"
        echo "  hide     - Hide desktop UI elements"
        echo "  keep-top - Keep VLC on top (runs continuously)"
        echo "  start    - Start video player service"
        echo "  all      - Do everything (hide UI, start service, keep on top)"
        exit 1
        ;;
esac