os/modules/sway/swayidle.service.nix

{
  pkgs,
  psCfg,
  ...
}: {
  Unit = {
    Description = "Idle manager for Wayland";
    Documentation = ["man:swayidle(1)"];
    BindsTo = ["graphical-session.target"];
    Wants = ["graphical-session-pre.target"];
    After = ["graphical-session-pre.target"];
  };
  Service = {
    Type = "simple";
    Environment = "PATH=/run/current-system/sw/bin:${pkgs.sway}/bin:${pkgs.swaylock-bg}/bin:${pkgs.swayidle}/bin";
    ExecStart =
      ''        swayidle -w \
                after-resume 'swaymsg "output * dpms on"' \
                before-sleep 'swaylock-bg' ''
      + (
        if psCfg.paranoia.enable
        then ''          \
                timeout 120 'swaymsg "output * dpms off"' resume 'swaymsg "output * dpms on"' \
                timeout 150 'systemctl hibernate'
        ''
        else ''          \
                timeout 600 'swaylock-bg' \
                timeout 900 'swaymsg "output * dpms off"' resume 'swaymsg "output * dpms on"'
        ''
      );
  };
  Install = {
    WantedBy = ["sway-session.target"];
  };
}