{
  lib
, buildPythonPackage
, pythonOlder
, fetchFromGitHub
, pythonRelaxDepsHook
# propagated build input
, faiss
, torch
, transformers
, huggingface-hub
, numpy
, pyyaml
, regex
# optional-dependencies
, aiohttp
, fastapi
, uvicorn
# TODO add apache-libcloud
# , apache-libcloud
, rich
, duckdb
, pillow
, networkx
, python-louvain
, onnx
, onnxruntime
, soundfile
, scipy
, ttstokenizer
, beautifulsoup4
, nltk
, pandas
, tika
, imagehash
, timm
, fasttext
, sentencepiece
, accelerate
, onnxmltools
, annoy
, hnswlib
# TODO add pymagnitude-lite
#, pymagnitude-lite
, scikit-learn
, sentence-transformers
, croniter
, openpyxl
, requests
, xmltodict
# native check inputs
, unittestCheckHook
}:
let
  version = "6.3.0";
  api = [ aiohttp fastapi uvicorn ];
  # cloud = [ apache-libcloud ];
  console = [ rich ];

  database = [ duckdb pillow ];

  graph = [ networkx python-louvain ];

  model = [ onnx onnxruntime ];

  pipeline-audio = [ onnx onnxruntime soundfile scipy ttstokenizer ];
  pipeline-data = [ beautifulsoup4 nltk pandas tika ];
  pipeline-image = [ imagehash pillow timm ];
  pipeline-text = [ fasttext sentencepiece ];
  pipeline-train = [ accelerate onnx onnxmltools onnxruntime ];
  pipeline = pipeline-audio ++ pipeline-data ++ pipeline-image ++ pipeline-text ++ pipeline-train;

  similarity = [
    annoy
    fasttext
    hnswlib
    # pymagnitude-lite
    scikit-learn
    sentence-transformers
  ];
  workflow = [
    # apache-libcloud
    croniter
    openpyxl
    pandas
    pillow
    requests
    xmltodict
  ];
  all = api ++ console ++ database ++ graph ++ model ++ pipeline ++ similarity ++ workflow;

  optional-dependencies = {
    inherit api console database graph model pipeline-audio pipeline-image
      pipeline-text pipeline-train pipeline similarity workflow all;
  };
in
buildPythonPackage {
  pname = "txtai";
  inherit version;
  format = "setuptools";

  disabled = pythonOlder "3.8";

  src = fetchFromGitHub {
    owner = "neuml";
    repo = "txtai";
    rev = "refs/tags/v${version}";
    hash = "sha256-Efk4HAJsQtSGp4S8S1dFBmObJ9ff9u9bRrTa5lACpTU=";
  };

  nativeBuildInputs = [
    pythonRelaxDepsHook
  ];

  pythonRemoveDeps = [
    # We call it faiss, not faiss-cpu.
    "faiss-cpu"
  ];

  propagatedBuildInputs = [
    faiss
    torch
    transformers
    huggingface-hub
    numpy
    pyyaml
    regex
  ];

  passthru.optional-dependencies = optional-dependencies;

  pythonImportsCheck = [ "txtai" ];

  # some tests hang forever
  doCheck = false;

  preCheck = ''
    export TRANSFORMERS_CACHE=$(mktemp -d)
  '';

  nativeCheckInputs = [
    unittestCheckHook
  ] ++ optional-dependencies.api ++ optional-dependencies.similarity;

  unittestFlagsArray = [
    "-s" "test/python" "-v"
  ];

  meta = with lib; {
    description = "Semantic search and workflows powered by language models";
    changelog = "https://github.com/neuml/txtai/releases/tag/v${version}";
    homepage = "https://github.com/neuml/txtai";
    license = licenses.asl20;
    maintainers = with maintainers; [ happysalada ];
  };
}