{
  config,
  lib,
  namespace,
  ...
}:
let
  cfg = config.${namespace}.desktop.hyprland;
in
{
  imports = [ ../../options.nix ];

  config = lib.mkIf cfg.enable {
    services.hypridle = {
      enable = true;
      settings = {
        general = {
          before_sleep_cmd = "loginctl lock-session"; # lock before suspend.
          after_sleep_cmd = "hyprctl dispatch dpms on"; # to avoid having to press a key twice to turn on the display.
          ignore_dbus_inhibit = false;
          lock_cmd = "pidof hyprlock || hyprlock"; # avoid starting multiple hyprlock instances.
        };
        listener = [
          # {
          #   timeout = 300; # 5min
          #   on-timeout = "brightnessctl -s set 10"; # set monitor backlight to minimum, avoid 0 on OLED monitor.
          #   on-resume = "brightnessctl -r"; # monitor backlight restore.
          # }
          {
            timeout = cfg.hyprIdle.lockScreenTimer;
            on-timeout = "loginctl lock-session"; # lock screen when timeout has passed
          }
          {
            timeout = cfg.hyprIdle.screenOffTimer;
            on-timeout = "hyprctl dispatch dpms off"; # screen off when timeout has passed
            on-resume = "hyprctl dispatch dpms on"; # screen on when activity is detected after timeout has fired.
          }
          {
            timeout = cfg.hyprIdle.suspendTimer;
            on-timeout = "systemctl suspend"; # suspend pc
          }
        ];
      };
    };
  };
}
