# ── modules/core/no-sleep.nix ─────────────────────────────────────────────────
# Prevents the machine from ever sleeping or suspending at the system level.
#
# This operates at two layers below GNOME:
#   1. systemd-logind  — ignores all hardware power events (lid, suspend key, etc.)
#   2. systemd targets — masks sleep/suspend/hibernate targets so nothing can
#                        trigger them, not even `systemctl suspend` or D-Bus calls.
#
# This is intentional for a 24/7 server/node. The GNOME-layer power settings in
# sovran_systemsos-desktop.nix remain in place as a belt-and-suspenders complement
# for active user sessions.
{ ... }:

{
  # ── Layer 1: logind hardware event handling ────────────────────────────────
  services.logind = {
    lidSwitch = "ignore";
    lidSwitchDocked = "ignore";
    lidSwitchExternalPower = "ignore";
    settings.Login = {
      HandleSuspendKey = "ignore";
      HandleHibernateKey = "ignore";
      HandlePowerKey = "ignore";
      IdleAction = "ignore";
      IdleActionSec = 0;
    };
  };

  # ── Layer 2: mask systemd sleep targets ───────────────────────────────────
  # Nothing on the system can suspend/hibernate — not root, not GNOME, not D-Bus.
  systemd.targets.sleep.enable = false;
  systemd.targets.suspend.enable = false;
  systemd.targets.hibernate.enable = false;
  systemd.targets.hybrid-sleep.enable = false;
}