{ config, lib, ... }:

let
  cfg = config.nomarchy.system.hibernation;
in
{
  config = lib.mkIf cfg.enable {
    # Wait this long after suspend before hibernating, and use the same
    # delay as the idle-action timeout so the two paths agree.
    # nixpkgs 26.05 replaced systemd.sleep.extraConfig with the RFC42-style
    # `settings` attrset.
    systemd.sleep.settings.Sleep.HibernateDelaySec = cfg.idleMinutes * 60;

    services.logind = {
      settings.Login = {
        HandleLidSwitch = lib.mkDefault "suspend-then-hibernate";
        HandleLidSwitchExternalPower = lib.mkDefault "suspend";
        HandlePowerKey = lib.mkDefault "hibernate";
        IdleAction = lib.mkDefault "suspend-then-hibernate";
        IdleActionSec = lib.mkDefault (toString (cfg.idleMinutes * 60));
      };
    };
  };
}