{ lib
, fetchFromGitHub
, bech32
, buildPythonPackage
, cryptography
, ed25519
, ecdsa
, gnupg
, semver
, mnemonic
, unidecode
, mock
, pytest
, backports-shutil-which
, configargparse
, python-daemon
, pymsgbox
, pynacl
}:

# XXX: when changing this package, please test the package onlykey-agent.

buildPythonPackage rec {
  pname = "libagent";
  version = "0.14.5";

  src = fetchFromGitHub {
    owner = "romanz";
    repo = "trezor-agent";
    rev = "v${version}";
    hash = "sha256-RISAy0efdatr9u4CWNRGnlffkC8ksw1NyRpJWKwqz+s=";
  };

  # hardcode the path to gpgconf in the libagent library
  postPatch = ''
    substituteInPlace libagent/gpg/keyring.py \
      --replace "util.which('gpgconf')" "'${gnupg}/bin/gpgconf'" \
      --replace "'gpg-connect-agent'" "'${gnupg}/bin/gpg-connect-agent'"
  '';

  propagatedBuildInputs = [
    unidecode
    backports-shutil-which
    configargparse
    python-daemon
    pymsgbox
    ecdsa
    ed25519
    mnemonic
    semver
    pynacl
    bech32
    cryptography
  ];

  nativeCheckInputs = [ mock pytest ];

  checkPhase = ''
    py.test libagent/tests
  '';

  meta = with lib; {
    description = "Using hardware wallets as SSH/GPG agent";
    homepage = "https://github.com/romanz/trezor-agent";
    license = licenses.lgpl3Only;
    maintainers = with maintainers; [ np ];
  };
}