# Lint as: python3
# Copyright 2018 The TensorFlow Authors. All Rights Reserved.
#
# 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
#
#     http://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.
# ==============================================================================
"""Generate Java reference docs for TensorFlow.org."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function

import pathlib
import shutil
import subprocess
import tempfile

from absl import app
from absl import flags

from tensorflow_docs.api_generator import gen_java

FLAGS = flags.FLAGS

# These flags are required by infrastructure, not all of them are used.
flags.DEFINE_string('output_dir', None,
                    ("Use this branch as the root version and don't"
                     ' create in version directory'))

flags.DEFINE_string('site_path', 'api_docs/java',
                    'Path prefix in the _toc.yaml')

flags.DEFINE_string('code_url_prefix', None,
                    '[UNUSED] The url prefix for links to code.')

flags.DEFINE_bool(
    'search_hints', True,
    '[UNUSED] Include metadata search hints in the generated files')

# Use this flag to disable bazel generation if you're not setup for it.
flags.DEFINE_bool('gen_ops', True, 'enable/disable bazel-generated ops')

# __file__ is the path to this file
DOCS_TOOLS_DIR = pathlib.Path(__file__).resolve().parent
TENSORFLOW_ROOT = DOCS_TOOLS_DIR.parents[2]
SOURCE_PATH = TENSORFLOW_ROOT / 'tensorflow/java/src/main/java'
OP_SOURCE_PATH = (
    TENSORFLOW_ROOT /
    'bazel-bin/tensorflow/java/ops/src/main/java/org/tensorflow/op')


def main(unused_argv):
  merged_source = pathlib.Path(tempfile.mkdtemp())
  shutil.copytree(SOURCE_PATH, merged_source / 'java')

  if FLAGS.gen_ops:
    subprocess.check_call(
        ['bazel', 'build', '//tensorflow/java:java_op_gen_sources'],
        cwd=TENSORFLOW_ROOT)
    shutil.copytree(OP_SOURCE_PATH, merged_source / 'java/org/tensorflow/ops')

  gen_java.gen_java_docs(
      package='org.tensorflow',
      source_path=merged_source / 'java',
      output_dir=pathlib.Path(FLAGS.output_dir),
      site_path=pathlib.Path(FLAGS.site_path))


if __name__ == '__main__':
  flags.mark_flags_as_required(['output_dir'])
  app.run(main)
