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# Copyright 2023 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.

r"""Training driver.

Commandline:
python -m official.vision.beta.projects.assemblenet.trian \
  --mode=train_and_eval --experiment=assemblenetplus_ucf101 \
  --model_dir='YOUR MODEL SAVE GS BUCKET' \
  --config_file=./official/vision/beta/projects/assemblenet/ \
  --ucf101_assemblenet_plus_tpu.yaml \
  --tpu=TPU_NAME
"""

from absl import app
from absl import flags
from absl import logging
import gin

from official.common import distribute_utils
from official.common import flags as tfm_flags
from official.core import task_factory
from official.core import train_lib
from official.core import train_utils
from official.modeling import performance
# pylint: disable=unused-import
from official.projects.assemblenet.configs import assemblenet as asn_configs
from official.projects.assemblenet.modeling import assemblenet as asn
from official.projects.assemblenet.modeling import assemblenet_plus as asnp
from official.vision import registry_imports
# pylint: enable=unused-import

FLAGS = flags.FLAGS


def main(_):
  gin.parse_config_files_and_bindings(FLAGS.gin_file, FLAGS.gin_params)
  params = train_utils.parse_configuration(FLAGS)
  model_dir = FLAGS.model_dir
  if 'train' in FLAGS.mode:
    # Pure eval modes do not output yaml files. Otherwise continuous eval job
    # may race against the train job for writing the same file.
    train_utils.serialize_config(params, model_dir)

  if 'train_and_eval' in FLAGS.mode:
    assert (params.task.train_data.feature_shape ==
            params.task.validation_data.feature_shape), (
                f'train {params.task.train_data.feature_shape} != validate '
                f'{params.task.validation_data.feature_shape}')

  if 'assemblenet' in FLAGS.experiment:
    if 'plus' in FLAGS.experiment:
      if 'eval' in FLAGS.mode:
        # Use the feature shape in validation_data for all jobs. The number of
        # frames in train_data will be used to construct the Assemblenet++
        # model.
        params.task.model.backbone.assemblenet_plus.num_frames = (
            params.task.validation_data.feature_shape[0])
        shape = params.task.validation_data.feature_shape
      else:
        params.task.model.backbone.assemblenet_plus.num_frames = (
            params.task.train_data.feature_shape[0])
        shape = params.task.train_data.feature_shape
      logging.info('mode %r num_frames %r feature shape %r', FLAGS.mode,
                   params.task.model.backbone.assemblenet_plus.num_frames,
                   shape)

    else:
      if 'eval' in FLAGS.mode:
        # Use the feature shape in validation_data for all jobs. The number of
        # frames in train_data will be used to construct the Assemblenet model.
        params.task.model.backbone.assemblenet.num_frames = (
            params.task.validation_data.feature_shape[0])
        shape = params.task.validation_data.feature_shape
      else:
        params.task.model.backbone.assemblenet.num_frames = (
            params.task.train_data.feature_shape[0])
        shape = params.task.train_data.feature_shape
      logging.info('mode %r num_frames %r feature shape %r', FLAGS.mode,
                   params.task.model.backbone.assemblenet.num_frames, shape)

  # Sets mixed_precision policy. Using 'mixed_float16' or 'mixed_bfloat16'
  # can have significant impact on model speeds by utilizing float16 in case of
  # GPUs, and bfloat16 in the case of TPUs. loss_scale takes effect only when
  # dtype is float16
  if params.runtime.mixed_precision_dtype:
    performance.set_mixed_precision_policy(params.runtime.mixed_precision_dtype)
  distribution_strategy = distribute_utils.get_distribution_strategy(
      distribution_strategy=params.runtime.distribution_strategy,
      all_reduce_alg=params.runtime.all_reduce_alg,
      num_gpus=params.runtime.num_gpus,
      tpu_address=params.runtime.tpu)
  with distribution_strategy.scope():
    task = task_factory.get_task(params.task, logging_dir=model_dir)

  train_lib.run_experiment(
      distribution_strategy=distribution_strategy,
      task=task,
      mode=FLAGS.mode,
      params=params,
      model_dir=model_dir)

  train_utils.save_gin_config(FLAGS.mode, model_dir)

if __name__ == '__main__':
  tfm_flags.define_flags()
  flags.mark_flags_as_required(['experiment', 'mode', 'model_dir'])
  app.run(main)

	# Copyright 2023 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.

	r"""Training driver.

	Commandline:
	python -m official.vision.beta.projects.assemblenet.trian \
	--mode=train_and_eval --experiment=assemblenetplus_ucf101 \
	--model_dir='YOUR MODEL SAVE GS BUCKET' \
	--config_file=./official/vision/beta/projects/assemblenet/ \
	--ucf101_assemblenet_plus_tpu.yaml \
	--tpu=TPU_NAME
	"""

	from absl import app
	from absl import flags
	from absl import logging
	import gin

	from official.common import distribute_utils
	from official.common import flags as tfm_flags
	from official.core import task_factory
	from official.core import train_lib
	from official.core import train_utils
	from official.modeling import performance
	# pylint: disable=unused-import
	from official.projects.assemblenet.configs import assemblenet as asn_configs
	from official.projects.assemblenet.modeling import assemblenet as asn
	from official.projects.assemblenet.modeling import assemblenet_plus as asnp
	from official.vision import registry_imports
	# pylint: enable=unused-import

	FLAGS = flags.FLAGS


	def main(_):
	gin.parse_config_files_and_bindings(FLAGS.gin_file, FLAGS.gin_params)
	params = train_utils.parse_configuration(FLAGS)
	model_dir = FLAGS.model_dir
	if 'train' in FLAGS.mode:
	# Pure eval modes do not output yaml files. Otherwise continuous eval job
	# may race against the train job for writing the same file.
	train_utils.serialize_config(params, model_dir)

	if 'train_and_eval' in FLAGS.mode:
	assert (params.task.train_data.feature_shape ==
	params.task.validation_data.feature_shape), (
	f'train {params.task.train_data.feature_shape} != validate '
	f'{params.task.validation_data.feature_shape}')

	if 'assemblenet' in FLAGS.experiment:
	if 'plus' in FLAGS.experiment:
	if 'eval' in FLAGS.mode:
	# Use the feature shape in validation_data for all jobs. The number of
	# frames in train_data will be used to construct the Assemblenet++
	# model.
	params.task.model.backbone.assemblenet_plus.num_frames = (
	params.task.validation_data.feature_shape[0])
	shape = params.task.validation_data.feature_shape
	else:
	params.task.model.backbone.assemblenet_plus.num_frames = (
	params.task.train_data.feature_shape[0])
	shape = params.task.train_data.feature_shape
	logging.info('mode %r num_frames %r feature shape %r', FLAGS.mode,
	params.task.model.backbone.assemblenet_plus.num_frames,
	shape)

	else:
	if 'eval' in FLAGS.mode:
	# Use the feature shape in validation_data for all jobs. The number of
	# frames in train_data will be used to construct the Assemblenet model.
	params.task.model.backbone.assemblenet.num_frames = (
	params.task.validation_data.feature_shape[0])
	shape = params.task.validation_data.feature_shape
	else:
	params.task.model.backbone.assemblenet.num_frames = (
	params.task.train_data.feature_shape[0])
	shape = params.task.train_data.feature_shape
	logging.info('mode %r num_frames %r feature shape %r', FLAGS.mode,
	params.task.model.backbone.assemblenet.num_frames, shape)

	# Sets mixed_precision policy. Using 'mixed_float16' or 'mixed_bfloat16'
	# can have significant impact on model speeds by utilizing float16 in case of
	# GPUs, and bfloat16 in the case of TPUs. loss_scale takes effect only when
	# dtype is float16
	if params.runtime.mixed_precision_dtype:
	performance.set_mixed_precision_policy(params.runtime.mixed_precision_dtype)
	distribution_strategy = distribute_utils.get_distribution_strategy(
	distribution_strategy=params.runtime.distribution_strategy,
	all_reduce_alg=params.runtime.all_reduce_alg,
	num_gpus=params.runtime.num_gpus,
	tpu_address=params.runtime.tpu)
	with distribution_strategy.scope():
	task = task_factory.get_task(params.task, logging_dir=model_dir)

	train_lib.run_experiment(
	distribution_strategy=distribution_strategy,
	task=task,
	mode=FLAGS.mode,
	params=params,
	model_dir=model_dir)

	train_utils.save_gin_config(FLAGS.mode, model_dir)

	if __name__ == '__main__':
	tfm_flags.define_flags()
	flags.mark_flags_as_required(['experiment', 'mode', 'model_dir'])
	app.run(main)