{ stdenv
, lib
, fetchurl
, intltool
, pkg-config
, networkmanager
, strongswanNM
, gtk3
, gtk4
, libsecret
, libnma
, libnma-gtk4
}:

stdenv.mkDerivation rec {
  pname = "NetworkManager-strongswan";
  version = "1.6.0";

  src = fetchurl {
    url = "https://download.strongswan.org/NetworkManager/${pname}-${version}.tar.bz2";
    sha256 = "bbyA9qCboM9hBKMXhJWXgEFN13Fl4pY6zWZXwowlRMI=";
  };

  nativeBuildInputs = [
    intltool
    pkg-config
  ];

  buildInputs = [
    networkmanager
    strongswanNM
    libsecret
    gtk3
    gtk4
    libnma
    libnma-gtk4
  ];

  configureFlags = [
    "--disable-more-warnings" # disables -Werror
    "--with-charon=${strongswanNM}/libexec/ipsec/charon-nm"
    "--with-nm-libexecdir=${placeholder "out"}/libexec"
    "--with-nm-plugindir=${placeholder "out"}/lib/NetworkManager"
    "--with-gtk4"
  ];

  PKG_CONFIG_LIBNM_VPNSERVICEDIR = "${placeholder "out"}/lib/NetworkManager/VPN";

  passthru = {
    networkManagerPlugin = "VPN/nm-strongswan-service.name";
  };

  meta = with lib; {
    description = "NetworkManager's strongswan plugin";
    inherit (networkmanager.meta) platforms;
    license = licenses.gpl2Plus;
  };
}
