dotfiles/nixos/i3/xidlehook.nix

{
  config,
  pkgs,
  ...
}: {
  services.xidlehook = {
    enable = true;
    not-when-audio = true;
    not-when-fullscreen = true;
    environment = {
      "PRIMARY_DISPLAY" = "$(${pkgs.xorg.xrandr}/bin/xrandr | awk '/ primary/{print $1}')";
    };
    timers = [
      {
        delay = 60;
        command = ''
          ${pkgs.xorg.xrandr}/bin/xrandr --output "$PRIMARY_DISPLAY" --brightness .1'';
        canceller = ''
          ${pkgs.xorg.xrandr}/bin/xrandr --output "$PRIMARY_DISPLAY" --brightness 1'';
      }
      {
        delay = 240;
        command = "${pkgs.writeShellScript "enable-display-and-suspend" ''
          ${pkgs.xorg.xrandr}/bin/xrandr --output "$PRIMARY_DISPLAY" --brightness 1
          ${pkgs.xorg.xrandr}/bin/xrandr --auto
          systemctl suspend
        ''}";
      }
    ];
  };
}