{ lib, pkgs, ... }:
{
  # config swayidle
  services.swayidle =
  let
    # Lock command
    lock = "${pkgs.swaylock}/bin/swaylock --daemonize";
    # TODO: modify "display" function based on your window manager
    # Sway
    display = status: "swaymsg 'output * power ${status}'";
  in
  {
    enable = true;
    timeouts = [
      {
        timeout = 295; # in seconds
        command = "${pkgs.libnotify}/bin/notify-send 'Locking in 5 seconds' -t 5000";
      }
      {
        timeout = 300;
        command = lock;
      }
      {
        timeout = 305;
        command = display "off";
        resumeCommand = display "on";
      }
      {
        timeout = 600;
        command = "${pkgs.systemd}/bin/systemctl suspend-then-hibernate";
      }
    ];
    events = [
      {
        event = "before-sleep";
        # adding duplicated entries for the same event may not work
        command = (display "off") + "; " + lock;
      }
      {
        event = "after-resume";
        command = display "on";
      }
      {
        event = "lock";
        command = (display "off") + "; " + lock;
      }
      {
        event = "unlock";
        command = display "on";
      }
    ];
  };
}