{ config, pkgs, ... }@all: with all; let
  target = "1.1.1.1";
  timeoutMinutes = 5;
  logFile = "/var/log/stay-up.log";
in {
  systemd.services.wifi-watchdog = {
    description = "Wi-Fi Watchdog Service";
    after = [ "network.target" "NetworkManager.service" ];
    wantedBy = [ "multi-user.target" ];
    path = with pkgs; [ iputils networkmanager coreutils ];
    script = /* bash */ ''
      FAIL_COUNT=0
      touch "${logFile}"
      while true; do
        if ping -c 1 -W 5 "${target}" > /dev/null 2>&1; then
          FAIL_COUNT=0
        else
          FAIL_COUNT=$((FAIL_COUNT + 1))
          if [ "$FAIL_COUNT" -ge "${toString timeoutMinutes}" ]; then
            echo "$(date -Iseconds): Network unreachable for ${toString timeoutMinutes} minutes. Restarting Wi-Fi." >> "${logFile}"
            nmcli radio wifi off
            sleep 5
            nmcli radio wifi on
            FAIL_COUNT=0
          fi
        fi
        sleep 60
      done
    '';
    serviceConfig = {
      Restart = "always";
      RestartSec = "10";
      User = "root"; # Root is required to execute nmcli radio commands and write to /var/log/
    };
  };
}