# Copyright 2018 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# This module is largely a wrapper around `jaxlib` that performs version
# checking on import.

import jaxlib

_minimum_jaxlib_version = (0, 1, 38)
try:
  from jaxlib import version as jaxlib_version
except:
  # jaxlib is too old to have version number.
  msg = 'This version of jax requires jaxlib version >= {}.'
  raise ImportError(msg.format('.'.join(map(str, _minimum_jaxlib_version))))

version = tuple(int(x) for x in jaxlib_version.__version__.split('.'))

# Check the jaxlib version before importing anything else from jaxlib.
def _check_jaxlib_version():
  if version < _minimum_jaxlib_version:
    msg = 'jaxlib is version {}, but this version of jax requires version {}.'

    if version == (0, 1, 23):
        msg += ('\n\nA common cause of this error is that you installed jaxlib '
                'using pip, but your version of pip is too old to support '
                'manylinux2010 wheels. Try running:\n\n'
                'pip install --upgrade pip\n'
                'pip install --upgrade jax jaxlib\n')
    raise ValueError(msg.format('.'.join(map(str, version)),
                                '.'.join(map(str, _minimum_jaxlib_version))))

_check_jaxlib_version()


try:
  from jaxlib import tpu_client  # pytype: disable=import-error
except:
  tpu_client = None
from jaxlib import xla_client
from jaxlib import lapack

from jaxlib import pytree
from jaxlib import cusolver
try:
  from jaxlib import cuda_prng
except ImportError:
  cuda_prng = None
