{ lib, stdenv, python3, fetchFromGitHub, git, pkg-config }:

# Note:
# Conan has specific dependency demands; check
#     https://github.com/conan-io/conan/blob/master/conans/requirements.txt
#     https://github.com/conan-io/conan/blob/master/conans/requirements_server.txt
# on the release branch/commit we're packaging.
#
# Two approaches are used here to deal with that:
# Pinning the specific versions it wants in `newPython`,
# and using `substituteInPlace conans/requirements.txt ...`
# in `postPatch` to allow newer versions when we know
# (e.g. from changelogs) that they are compatible.

let newPython = python3.override {
  packageOverrides = self: super: {
    node-semver = super.node-semver.overridePythonAttrs (oldAttrs: rec {
      version = "0.6.1";
      src = oldAttrs.src.override {
        inherit version;
        sha256 = "1dv6mjsm67l1razcgmq66riqmsb36wns17mnipqr610v0z0zf5j0";
      };
    });
    urllib3 = super.urllib3.overridePythonAttrs (oldAttrs: rec {
      version = "1.25.11";
      src = oldAttrs.src.override {
        inherit version;
        sha256 = "18hpzh1am1dqx81fypn57r2wk565fi4g14292qrc5jm1h9dalzld";
      };
    });
  };
};

in newPython.pkgs.buildPythonApplication rec {
  version = "1.35.0";
  pname = "conan";

  src = fetchFromGitHub {
    owner = "conan-io";
    repo = "conan";
    rev = version;
    sha256 = "19rgylkjxvv47vz5vgh46rw108xskpv7lmax8y2fnm2wd1j3bq9c";
  };

  propagatedBuildInputs = with newPython.pkgs; [
    bottle
    colorama
    dateutil
    deprecation
    distro
    fasteners
    future
    jinja2
    node-semver
    patch-ng
    pluginbase
    pygments
    pyjwt
    pylint # Not in `requirements.txt` but used in hooks, see https://github.com/conan-io/conan/pull/6152
    pyyaml
    requests
    six
    tqdm
    urllib3
  ] ++ lib.optionals stdenv.isDarwin [ idna cryptography pyopenssl ];

  checkInputs = [
    pkg-config
    git
  ] ++ (with newPython.pkgs; [
    codecov
    mock
    nose
    parameterized
    webtest
  ]);

  # TODO: reenable tests now that we fetch tests w/ the source from GitHub.
  # Not enabled right now due to time constraints/failing tests that I didn't have time to track down
  doCheck = false;

  postPatch = ''
    substituteInPlace conans/requirements.txt \
      --replace "deprecation>=2.0, <2.1" "deprecation"
  '';

  meta = with lib; {
    homepage = "https://conan.io";
    description = "Decentralized and portable C/C++ package manager";
    license = licenses.mit;
    maintainers = with maintainers; [ HaoZeke ];
  };
}