{ lib
, buildPythonPackage
, fetchFromGitHub
, poetry-core
, filterpy
, importlib-metadata
, numpy
, rich
, scipy
, opencv4
, pytestCheckHook
, pythonRelaxDepsHook
, python3
}:

buildPythonPackage rec {
  pname = "norfair";
  version = "2.2.0";
  pyproject = true;

  src = fetchFromGitHub {
    owner = "tryolabs";
    repo = "norfair";
    rev = "v${version}";
    hash = "sha256-aKB5TYSLW7FOXIy9u2hK7px6eEmIQdKPrhChKaU1uYs=";
  };

  nativeBuildInputs = [
    poetry-core
    pythonRelaxDepsHook
  ];

  pythonRelaxDeps = [
    "rich"
  ];

  propagatedBuildInputs = [
    filterpy
    importlib-metadata
    numpy
    rich
    scipy
  ];

  passthru.optional-dependencies = {
    metrics = [
      python3.pkgs.motmetrics
    ];
    video = [
      opencv4
    ];
  };

  nativeCheckInputs = [
    pytestCheckHook
  ];

  pythonImportsCheck = [
    "norfair"
  ];

  meta = with lib; {
    description = "Lightweight Python library for adding real-time multi-object tracking to any detector";
    changelog = "https://github.com/tryolabs/norfair/releases/tag/v${version}";
    homepage = "https://github.com/tryolabs/norfair";
    license = licenses.bsd3;
    maintainers = with maintainers; [ fleaz ];
  };
}