nix-config/home/panotaka/common/optional/desktops/hyprland/zenbook-screen.nix

{pkgs, ...}: let
  # Configuration variables from your script
  preferred_resolution = "2880x1800";
  refresh_rate = "120";
  ui_scale = "1.5";
  y_offset = "1200";
  vrr_mode = "1"; # 0 = off, 1 = on, 2 = fullscreen only

  # Inline scripts adapted from your bash script
  zenbook-top = pkgs.writeShellScriptBin "zenbook-top" ''
    echo "Setting to top screen only"
    ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-1,${preferred_resolution}@${refresh_rate},0x0,${ui_scale},vrr,${vrr_mode}"
    ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-2,disable"
  '';

  zenbook-bottom = pkgs.writeShellScriptBin "zenbook-bottom" ''
    echo "Setting to bottom screen only"
    ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-2,${preferred_resolution}@${refresh_rate},0x0,${ui_scale},vrr,${vrr_mode}"
    ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-1,disable"
  '';

  zenbook-both = pkgs.writeShellScriptBin "zenbook-both" ''
    echo "Setting to both screens"
    ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-1,${preferred_resolution}@${refresh_rate},0x0,${ui_scale},vrr,${vrr_mode}"
    ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-2,${preferred_resolution}@${refresh_rate},0x${y_offset},${ui_scale},vrr,${vrr_mode}"
  '';

  zenbook-left-up = pkgs.writeShellScriptBin "zenbook-left-up" ''
    echo "Setting to left-right layout"
    ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-2,${preferred_resolution}@${refresh_rate},0x0,${ui_scale},vrr,${vrr_mode}"
    ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-1,${preferred_resolution}@${refresh_rate},${y_offset}x0,${ui_scale},vrr,${vrr_mode}"
  '';

  zenbook-right-up = pkgs.writeShellScriptBin "zenbook-right-up" ''
    echo "Setting to right-left layout"
    ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-1,${preferred_resolution}@${refresh_rate},0x0,${ui_scale},vrr,${vrr_mode}"
    ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-2,${preferred_resolution}@${refresh_rate},${y_offset}x0,${ui_scale},vrr,${vrr_mode}"
  '';

  zenbook-normal = pkgs.writeShellScriptBin "zenbook-normal" ''
    # Check if lid is closed
    lid_closed=false
    if grep -q closed /proc/acpi/button/lid/*/state 2>/dev/null; then
      lid_closed=true
    fi

    # Check if keyboard is attached (USB dock detection)
    keyboard_attached=false
    if ${pkgs.usbutils}/bin/lsusb | grep 0b05:1b2c; then
      keyboard_attached=true
    fi

    if [ "$lid_closed" = true ] && [ "$keyboard_attached" = true ]; then
      echo "Lid closed and keyboard attached — disabling both screens"
      ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-1,disable"
      ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-2,disable"
    elif [ "$lid_closed" = true ]; then
      echo "Lid closed — disabling top screen"
      ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-1,disable"
      ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-2,${preferred_resolution}@${refresh_rate},0x0,${ui_scale},vrr,${vrr_mode}"
    elif [ "$keyboard_attached" = true ]; then
      echo "Keyboard attached — disabling bottom screen"
      ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-1,${preferred_resolution}@${refresh_rate},0x0,${ui_scale},vrr,${vrr_mode}"
      ${pkgs.hyprland}/bin/hyprctl keyword monitor "eDP-2,disable"
    else
      echo "Normal mode — enabling both screens"
      ${zenbook-both}/bin/zenbook-both
    fi
  '';

  zenbook-toggle = pkgs.writeShellScriptBin "zenbook-toggle" ''
    # Check current state and toggle
    enabled_count=$(${pkgs.hyprland}/bin/hyprctl monitors | grep -c "eDP.*" || echo "0")
    if [ "$enabled_count" -eq 1 ]; then
      ${zenbook-both}/bin/zenbook-both
    else
      ${zenbook-top}/bin/zenbook-top
    fi
  '';

  # Event-driven display management (from your original script)
  zenbook-watch-displays = pkgs.writeShellScriptBin "zenbook-watch-displays" ''
    ${zenbook-normal}/bin/zenbook-normal
    while ${pkgs.inotify-tools}/bin/inotifywait -e attrib /dev/bus/usb/*/; do
      ${zenbook-normal}/bin/zenbook-normal
    done
  '';

  zenbook-set-displays = pkgs.writeShellScriptBin "zenbook-set-displays" ''
    sleep 1
    ${zenbook-normal}/bin/zenbook-normal
  '';

  # Auto-run display setup on startup
  zenbook-autostart = pkgs.writeShellScriptBin "zenbook-autostart" ''
    # Initial display setup
    ${zenbook-normal}/bin/zenbook-normal

    # Start USB monitoring in background
    ${zenbook-watch-displays}/bin/zenbook-watch-displays &
  '';
in {
  # Zenbook dual-screen display configuration
  wayland.windowManager.hyprland.settings = {
    # Monitor configuration for Zenbook dual screens
    monitor = [
      # Primary display (eDP-1) - top screen
      "eDP-1,${preferred_resolution}@${refresh_rate},0x0,${ui_scale},vrr,${vrr_mode}"
      # Secondary display (eDP-2) - bottom screen positioned below primary
      "eDP-2,${preferred_resolution}@${refresh_rate},0x${y_offset},${ui_scale},vrr,${vrr_mode}"
      # Fallback for any other monitors
      ",preferred,auto,1"
    ];

    # VRR and performance optimizations
    misc = {
      # Enable Variable Frame Rate to save power when screen is static
      vfr = true;
    };

    # Auto-start the event-driven display management
    exec-once = [
      "${zenbook-autostart}/bin/zenbook-autostart"
    ];
  };

  # Add the scripts to home packages
  home.packages = [
    zenbook-top
    zenbook-bottom
    zenbook-both
    zenbook-left-up
    zenbook-right-up
    zenbook-normal
    zenbook-toggle
    zenbook-watch-displays
    zenbook-set-displays
    zenbook-autostart
  ];
}