# SPDX-License-Identifier: CC0-1.0

{ stdenv, fetchgit, tup }:

let
  tupArch = with stdenv.targetPlatform;
    if isAarch32 then
      "arm"
    else if isAarch64 then
      "arm64"
    else if isx86_32 then
      "i386"
    else if isx86_64 then
      "x86_64"
    else
      abort "unhandled targetPlatform";

  toTupConfig = attrs:
    with builtins;
    let op = config: name: "${config}CONFIG_${name}=${attrs.${name}} ";
    in foldl' op "" (attrNames attrs);

in stdenv.mkDerivation rec {
  pname = "nic_bus";
  version = "2.0";

  src = fetchgit {
    url = "https://git.sr.ht/~ehmry/nic_bus";
    rev = "v" + version;
    sha256 = "DrgZHkUEjkHmSfOqSetGqU/nLl8OqNM0zaJjOout5VY=";
  };

  nativeBuildInputs = [ tup ];

  configurePhase = ''
    # Scan repository and generate script
    tup init
    tup generate buildPhase.sh
  '';

  buildPhase = ''
    pushd .
    set -v
    source buildPhase.sh
    set +v
    popd
  '';

  installPhase = "install -Dm755 {.,$out}/${pname}";

  meta = with stdenv.lib; {
    license = licenses.agpl3;
    maintainers = [ maintainers.ehmry ];
  };

}