# For the moment we only support the CPU and GPU backends of jaxlib. The TPU
# backend will require some additional work. Those wheels are located here:
# https://storage.googleapis.com/jax-releases/libtpu_releases.html.

# See `python3Packages.jax.passthru` for CUDA tests.

{
  autoPatchelfHook,
  buildPythonPackage,
  fetchPypi,
  lib,
  ml-dtypes,
  numpy,
  python,
  scipy,
  stdenv,
}:

let
  version = "0.12.0.1";
  inherit (python) pythonVersion;

  # As of 2023-06-06, google/jax upstream is no longer publishing CPU-only wheels to their GCS bucket. Instead the
  # official instructions recommend installing CPU-only versions via PyPI.
  srcs =
    let
      getSrcFromPypi =
        {
          platform,
          dist,
          hash,
        }:
        fetchPypi {
          inherit
            version
            platform
            dist
            hash
            ;
          pname = "jaxlib";
          format = "wheel";
          python = dist;
          abi = dist;
        };
    in
    {
      "3.12-x86_64-linux" = getSrcFromPypi {
        platform = "manylinux_2_27_x86_64";
        dist = "cp312";
        hash = "sha256-eDGOmseckpcvgcdwkPVXvbSlpJghdRxu4/apxmqUiEI=";
      };
      "3.12-aarch64-linux" = getSrcFromPypi {
        platform = "manylinux_2_27_aarch64";
        dist = "cp312";
        hash = "sha256-QIEiAcO81MsQS4j3H1j+xMvQwyupDlySs/qPQIGfZ3Q=";
      };
      "3.12-aarch64-darwin" = getSrcFromPypi {
        platform = "macosx_11_0_arm64";
        dist = "cp312";
        hash = "sha256-2yzIWE19DRZik+8kdbcmmIoQ9vm1qOO443EkFeVXA4A=";
      };

      "3.13-x86_64-linux" = getSrcFromPypi {
        platform = "manylinux_2_27_x86_64";
        dist = "cp313";
        hash = "sha256-/cVpmbppC9kV9wKWEyaYSOqvhdIx7Iq8RmENO4QMGJw=";
      };
      "3.13-aarch64-linux" = getSrcFromPypi {
        platform = "manylinux_2_27_aarch64";
        dist = "cp313";
        hash = "sha256-yN4crTgnExFPZX9AY4PtxT7p/aRnnbTisJ0d/v4cTkU=";
      };
      "3.13-aarch64-darwin" = getSrcFromPypi {
        platform = "macosx_11_0_arm64";
        dist = "cp313";
        hash = "sha256-i+FgsLhHvFcWjkMFcTdW9toNC7omcV5k+dL0bAp6a0I=";
      };

      "3.14-x86_64-linux" = getSrcFromPypi {
        platform = "manylinux_2_27_x86_64";
        dist = "cp314";
        hash = "sha256-tgeadmnWJOvULRVxM5Vm5iz+ciX0taILjhZ3PqmoNXo=";
      };
      "3.14-aarch64-linux" = getSrcFromPypi {
        platform = "manylinux_2_27_aarch64";
        dist = "cp314";
        hash = "sha256-YJ3v+uo4jR7Z0cUQTY9gQXkfAHca3DBfcxa3QvUC/Ws=";
      };
      "3.14-aarch64-darwin" = getSrcFromPypi {
        platform = "macosx_11_0_arm64";
        dist = "cp314";
        hash = "sha256-k7jaGD8CNWA8RgtTDajNbrI+p/HGrcT4KkOmA1SX1GY=";
      };
    };
in
buildPythonPackage {
  pname = "jaxlib";
  inherit version;
  format = "wheel";

  __structuredAttrs = true;

  # See https://discourse.nixos.org/t/ofborg-does-not-respect-meta-platforms/27019/6.
  src = (
    srcs."${pythonVersion}-${stdenv.hostPlatform.system}"
      or (throw "jaxlib-bin is not supported on ${stdenv.hostPlatform.system}")
  );

  # Prebuilt wheels are dynamically linked against things that nix can't find.
  # Run `autoPatchelfHook` to automagically fix them.
  nativeBuildInputs = lib.optionals stdenv.hostPlatform.isLinux [ autoPatchelfHook ];
  # Dynamic link dependencies
  buildInputs = [ (lib.getLib stdenv.cc.cc) ];

  dependencies = [
    ml-dtypes
    numpy
    scipy
  ];

  pythonImportsCheck = [ "jaxlib" ];

  meta = {
    description = "Prebuilt jaxlib backend from PyPi";
    homepage = "https://github.com/jax-ml/jax";
    sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
    license = lib.licenses.asl20;
    maintainers = with lib.maintainers; [ samuela ];
    # Keep in sync with `srcs` above
    platforms = [
      "x86_64-linux"
      "aarch64-linux"
      "aarch64-darwin"
    ];
  };
}