{ lib
, pkgs
, stdenv
, buildPythonPackage
, foma
, icu
, swig
}:

buildPythonPackage rec {
  pname = "hfst";
  format = "setuptools";
  inherit (pkgs.hfst) version src;

  sourceRoot = "${src.name}/python";

  postPatch = ''
    # omorfi-python looks for 'hfst' Python package
    sed -i 's/libhfst_swig/hfst/' setup.py;
  '';

  nativeBuildInputs = [
    swig
  ];

  buildInputs = [
    icu
    pkgs.hfst
  ];

  setupPyBuildFlags = [
    "--inplace"
  ];

  # Find foma in Darwin tests
  preCheck = lib.optionalString stdenv.isDarwin ''
    export DYLD_LIBRARY_PATH="${foma}/lib"
  '';

  meta = with lib; {
    description = "Python bindings for HFST";
    homepage = "https://github.com/hfst/hfst";
    license = licenses.gpl3;
    maintainers = with maintainers; [ lurkki ];
  };
}