{ lib
, stdenv
, fetchFromGitHub
, gdk-pixbuf
, gtk-engine-murrine
, jdupes
, librsvg
, libxml2
, buttonVariants ? [] # default to all
, colorVariants ? [] # default to all
, opacityVariants ? [] # default to all
, sizeVariants ? [] # default to all
}:

let
  pname = "sierra-gtk-theme";
in
lib.checkListOfEnum "${pname}: button variants" [ "standard" "alt" ] buttonVariants
lib.checkListOfEnum "${pname}: color variants" [ "light" "dark" ] colorVariants
lib.checkListOfEnum "${pname}: opacity variants" [ "standard" "solid" ] opacityVariants
lib.checkListOfEnum "${pname}: size variants" [ "standard" "compact" ] sizeVariants

stdenv.mkDerivation {
  inherit pname;
  version = "unstable-2021-05-24";

  src = fetchFromGitHub {
    owner = "vinceliuice";
    repo = pname;
    rev = "05899001c4fc2fec87c4d222cb3997c414e0affd";
    sha256 = "174l5mryc34ma1r42pk6572c6i9hmzr9vj1a6w06nqz5qcfm1hds";
  };

  nativeBuildInputs = [
    jdupes
    libxml2
  ];

  buildInputs = [
    gdk-pixbuf
    librsvg
  ];

  propagatedUserEnvPkgs = [
    gtk-engine-murrine
  ];

  installPhase = ''
    runHook preInstall

    patchShebangs install.sh

    mkdir -p $out/share/themes
    name= ./install.sh --dest $out/share/themes \
      ${lib.optionalString (buttonVariants != []) "--alt " + builtins.toString buttonVariants} \
      ${lib.optionalString (colorVariants != []) "--color " + builtins.toString colorVariants} \
      ${lib.optionalString (opacityVariants != []) "--opacity " + builtins.toString opacityVariants} \
      ${lib.optionalString (sizeVariants != []) "--flat " + builtins.toString sizeVariants}

    # Replace duplicate files with hardlinks to the first file in each
    # set of duplicates, reducing the installed size in about 79%
    jdupes -L -r $out/share

    runHook postInstall
  '';

  meta = with lib; {
    description = "Mac OSX like theme for GTK based desktop environments";
    homepage = "https://github.com/vinceliuice/Sierra-gtk-theme";
    license = licenses.gpl3;
    platforms = platforms.unix;
    maintainers = [ maintainers.romildo ];
  };
}
