
import os
from dataclasses import replace

import jax
import wandb
from bigbird_flax import Args, DataCollator, FlaxBigBirdForNaturalQuestions, Trainer, build_tx, train_step, val_step
from datasets import load_dataset
from flax import jax_utils

from transformers import BigBirdTokenizerFast


if __name__ == "__main__":
		print('#################### AVAILABLE DEVICES ####################')
		print(jax.devices())
		print('###########################################################')

		# setup for wandb sweep
		__SCREAMING_SNAKE_CASE	:      str			   =   Args()
		__SCREAMING_SNAKE_CASE	:      Dict			   =   wandb.init(project='bigbird-natural-questions', config=args.__dict__)
		__SCREAMING_SNAKE_CASE	:      Union[str, Any]			   =   dict(logger.config)
		del wandb_args["batch_size"]
		__SCREAMING_SNAKE_CASE	:      Optional[int]			   =   replace(args, **wandb_args)
		__SCREAMING_SNAKE_CASE	:      int			   =   args.base_dir + '-' + wandb.run.id
		__SCREAMING_SNAKE_CASE	:      str			   =   replace(args, base_dir=base_dir)
		print(args)

		__SCREAMING_SNAKE_CASE	:      Optional[int]			   =   load_dataset('json', data_files=args.tr_data_path)['train']
		__SCREAMING_SNAKE_CASE	:      int			   =   load_dataset('json', data_files=args.val_data_path)['train']

		# drop extra batch for now
		__SCREAMING_SNAKE_CASE	:      int			   =   range(len(tr_dataset) - len(tr_dataset) % args.batch_size)
		__SCREAMING_SNAKE_CASE	:      Optional[int]			   =   tr_dataset.shuffle().select(indices)
		__SCREAMING_SNAKE_CASE	:      int			   =   range(len(val_dataset) - len(val_dataset) % args.batch_size)
		__SCREAMING_SNAKE_CASE	:      int			   =   val_dataset.shuffle().select(indices)

		if os.environ.get('TRAIN_ON_SMALL', 'false') == "true":
				__SCREAMING_SNAKE_CASE	:      Optional[int]			   =   tr_dataset.shuffle().select(range(8_00_00))
				__SCREAMING_SNAKE_CASE	:      List[str]			   =   val_dataset.shuffle().select(range(80_00))

		print(tr_dataset)
		print(val_dataset)

		__SCREAMING_SNAKE_CASE	:      Union[str, Any]			   =   FlaxBigBirdForNaturalQuestions.from_pretrained(
		    args.model_id, block_size=args.block_size, num_random_blocks=args.num_random_blocks
		)
		__SCREAMING_SNAKE_CASE	:      Any			   =   BigBirdTokenizerFast.from_pretrained(args.model_id)
		__SCREAMING_SNAKE_CASE	:      Union[str, Any]			   =   DataCollator(pad_id=tokenizer.pad_token_id, max_length=40_96)

		__SCREAMING_SNAKE_CASE	:      Tuple			   =   {
		    'lr': args.lr,
		    'init_lr': args.init_lr,
		    'warmup_steps': args.warmup_steps,
		    'num_train_steps': args.max_epochs * (len(tr_dataset) // args.batch_size),
		    'weight_decay': args.weight_decay,
		}
		__SCREAMING_SNAKE_CASE   , __SCREAMING_SNAKE_CASE	:      List[str]			   =   build_tx(**tx_args)

		__SCREAMING_SNAKE_CASE	:      Optional[int]			   =   Trainer(
		    args=args,
		    data_collator=data_collator,
		    model_save_fn=model.save_pretrained,
		    train_step_fn=train_step,
		    val_step_fn=val_step,
		    logger=logger,
		    scheduler_fn=lr,
		)

		__SCREAMING_SNAKE_CASE	:      List[Any]			   =   None
		__SCREAMING_SNAKE_CASE	:      List[Any]			   =   trainer.create_state(model, tx, num_train_steps=tx_args['num_train_steps'], ckpt_dir=ckpt_dir)
		try:
				trainer.train(state, tr_dataset, val_dataset)
		except KeyboardInterrupt:
				print('Oooops; TRAINING STOPPED UNFORTUNATELY')

		print('SAVING WEIGHTS IN `final-weights`')
		__SCREAMING_SNAKE_CASE	:      Optional[int]			   =   jax_utils.unreplicate(state.params)
		model.save_pretrained(os.path.join(args.base_dir, 'final-weights'), params=params)





'''simple docstring'''

from collections import OrderedDict
from typing import Any, Mapping, Optional

from ... import PreTrainedTokenizer
from ...configuration_utils import PretrainedConfig
from ...onnx import OnnxConfig, OnnxConfigWithPast, OnnxSeqaSeqConfigWithPast
from ...onnx.utils import compute_effective_axis_dimension
from ...utils import TensorType, is_torch_available, logging


UpperCAmelCase			=    logging.get_logger(__name__)

UpperCAmelCase			=    {
    'google/bigbird-pegasus-large-arxiv': (
        'https://huggingface.co/google/bigbird-pegasus-large-arxiv/resolve/main/config.json'
    ),
    'google/bigbird-pegasus-large-pubmed': (
        'https://huggingface.co/google/bigbird-pegasus-large-pubmed/resolve/main/config.json'
    ),
    'google/bigbird-pegasus-large-bigpatent': (
        'https://huggingface.co/google/bigbird-pegasus-large-bigpatent/resolve/main/config.json'
    ),
    # See all BigBirdPegasus models at https://huggingface.co/models?filter=bigbird_pegasus
}

class __snake_case(      _lowerCAmelCase					):


						'''simple docstring'''



						UpperCAmelCase							:    Union[str, Any]           =		"bigbird_pegasus"
						UpperCAmelCase							:    Optional[Any]           =		["past_key_values"]
						UpperCAmelCase							:    Optional[Any]           =		{
						    "num_attention_heads": "encoder_attention_heads",
						    "hidden_size": "d_model",
						    "attention_probs_dropout_prob": "attention_dropout",
						}


						def __init__(					self	,       A_=9_6103	,       A_=4096	,       A_=16	,       A_=4096	,       A_=16	,       A_=16	,       A_=4096	,       A_=16	,       A_=0.0	,       A_=0.0	,       A_=True	,       A_=True	,       A_="gelu_new"	,       A_=1024	,       A_=0.1	,       A_=0.0	,       A_=0.0	,       A_=0.0_2	,       A_=2	,       A_=0.0	,       A_=True	,       A_=0	,       A_=2	,       A_=1	,       A_="block_sparse"	,       A_=64	,       A_=3	,       A_=False	,       **A_	,       )	->	List[str]:
							lowerCAmelCase    =	vocab_size
							lowerCAmelCase    =	max_position_embeddings
							lowerCAmelCase    =	d_model
							lowerCAmelCase    =	encoder_ffn_dim
							lowerCAmelCase    =	encoder_layers
							lowerCAmelCase    =	encoder_attention_heads
							lowerCAmelCase    =	decoder_ffn_dim
							lowerCAmelCase    =	decoder_layers
							lowerCAmelCase    =	decoder_attention_heads
							lowerCAmelCase    =	dropout
							lowerCAmelCase    =	attention_dropout
							lowerCAmelCase    =	activation_dropout
							lowerCAmelCase    =	activation_function
							lowerCAmelCase    =	init_std
							lowerCAmelCase    =	encoder_layerdrop
							lowerCAmelCase    =	decoder_layerdrop
							lowerCAmelCase    =	classifier_dropout
							lowerCAmelCase    =	use_cache
							lowerCAmelCase    =	encoder_layers
							lowerCAmelCase    =	scale_embedding  # scale factor will be sqrt(d_model) if True

							# extra config
							lowerCAmelCase    =	attention_type
							lowerCAmelCase    =	block_size
							lowerCAmelCase    =	num_random_blocks
							lowerCAmelCase    =	use_bias

							super().__init__(
							    pad_token_id=A_	,       bos_token_id=A_	,       eos_token_id=A_	,       is_encoder_decoder=A_	,       decoder_start_token_id=A_	,       **A_	,       )







class __snake_case(      _lowerCAmelCase					):


						'''simple docstring'''



						@property
						def 				__snake_case    (					self      )	->	Mapping[str, Mapping[int, str]]:
							if self.task in ["default", "seq2seq-lm"]:
								lowerCAmelCase    =	OrderedDict(
								    [
								        ("""input_ids""", {0: """batch""", 1: """encoder_sequence"""}),
								        ("""attention_mask""", {0: """batch""", 1: """encoder_sequence"""}),
								    ]      )

								if self.use_past:
									lowerCAmelCase    =	{0: """batch"""}
									lowerCAmelCase    =	{0: """batch""", 1: """past_decoder_sequence + sequence"""}
								else:
									lowerCAmelCase    =	{0: """batch""", 1: """decoder_sequence"""}
									lowerCAmelCase    =	{0: """batch""", 1: """decoder_sequence"""}

								if self.use_past:
									self.fill_with_past_key_values_(A_	,       direction="""inputs"""      )
							elif self.task == "causal-lm":
								# TODO: figure this case out.
								lowerCAmelCase    =	OrderedDict(
								    [
								        ("""input_ids""", {0: """batch""", 1: """encoder_sequence"""}),
								        ("""attention_mask""", {0: """batch""", 1: """encoder_sequence"""}),
								    ]      )
								if self.use_past:
									lowerCAmelCase,   lowerCAmelCase    =	self.num_layers
									for i in range(A_      ):
										lowerCAmelCase    =	{0: """batch""", 2: """past_sequence + sequence"""}
										lowerCAmelCase    =	{0: """batch""", 2: """past_sequence + sequence"""}
							else:
								lowerCAmelCase    =	OrderedDict(
								    [
								        ("""input_ids""", {0: """batch""", 1: """encoder_sequence"""}),
								        ("""attention_mask""", {0: """batch""", 1: """encoder_sequence"""}),
								        ("""decoder_input_ids""", {0: """batch""", 1: """decoder_sequence"""}),
								        ("""decoder_attention_mask""", {0: """batch""", 1: """decoder_sequence"""}),
								    ]      )

							return common_inputs


						@property
						def 				__snake_case    (					self      )	->	Mapping[str, Mapping[int, str]]:
							if self.task in ["default", "seq2seq-lm"]:
								lowerCAmelCase    =	super().outputs
							else:
								lowerCAmelCase    =	super(A_	,       self      ).outputs
								if self.use_past:
									lowerCAmelCase,   lowerCAmelCase    =	self.num_layers
									for i in range(A_      ):
										lowerCAmelCase    =	{0: """batch""", 2: """past_sequence + sequence"""}
										lowerCAmelCase    =	{0: """batch""", 2: """past_sequence + sequence"""}
							return common_outputs


						def 				__snake_case    (					self	,       A_	,       A_ = -1	,       A_ = -1	,       A_ = False	,       A_ = None	,       )	->	Mapping[str, Any]:
							lowerCAmelCase    =	self._generate_dummy_inputs_for_sequence_classification_and_question_answering(
							    A_	,       A_	,       A_	,       A_	,       A_      )

							# Generate decoder inputs
							lowerCAmelCase    =	seq_length if not self.use_past else 1
							lowerCAmelCase    =	self._generate_dummy_inputs_for_sequence_classification_and_question_answering(
							    A_	,       A_	,       A_	,       A_	,       A_      )
							lowerCAmelCase    =	{f'decoder_{name}': tensor for name, tensor in decoder_inputs.items()}
							lowerCAmelCase    =	dict(**A_	,       **A_      )

							if self.use_past:
								if not is_torch_available():
									raise ValueError("""Cannot generate dummy past_keys inputs without PyTorch installed."""      )
								else:
									import torch
								lowerCAmelCase,   lowerCAmelCase    =	common_inputs["""input_ids"""].shape
								lowerCAmelCase    =	common_inputs["""decoder_input_ids"""].shape[1]
								lowerCAmelCase,   lowerCAmelCase    =	self.num_attention_heads
								lowerCAmelCase    =	(
								    batch,
								    num_encoder_attention_heads,
								    encoder_seq_length,
								    self._config.hidden_size // num_encoder_attention_heads,
								)
								lowerCAmelCase    =	decoder_seq_length + 3
								lowerCAmelCase    =	(
								    batch,
								    num_decoder_attention_heads,
								    decoder_past_length,
								    self._config.hidden_size // num_decoder_attention_heads,
								)

								lowerCAmelCase    =	torch.cat(
								    [common_inputs["""decoder_attention_mask"""], torch.ones(A_	,       A_      )]	,       dim=1      )

								lowerCAmelCase    =	[]
								# If the number of encoder and decoder layers are present in the model configuration, both are considered
								lowerCAmelCase,   lowerCAmelCase    =	self.num_layers
								lowerCAmelCase    =	min(A_	,       A_      )
								lowerCAmelCase    =	max(A_	,       A_      ) - min_num_layers
								lowerCAmelCase    =	"""encoder""" if num_encoder_layers > num_decoder_layers else """decoder"""

								for _ in range(A_      ):
									common_inputs["past_key_values"].append(
									    (
									        torch.zeros(A_      ),
									        torch.zeros(A_      ),
									        torch.zeros(A_      ),
									        torch.zeros(A_      ),
									    )      )
								# TODO: test this.
								lowerCAmelCase    =	encoder_shape if remaining_side_name == """encoder""" else decoder_shape
								for _ in range(A_	,       A_      ):
									common_inputs["past_key_values"].append((torch.zeros(A_      ), torch.zeros(A_      ))      )
							return common_inputs


						def 				__snake_case    (					self	,       A_	,       A_ = -1	,       A_ = -1	,       A_ = False	,       A_ = None	,       )	->	Mapping[str, Any]:
							lowerCAmelCase    =	self._generate_dummy_inputs_for_sequence_classification_and_question_answering(
							    A_	,       A_	,       A_	,       A_	,       A_      )

							if self.use_past:
								if not is_torch_available():
									raise ValueError("""Cannot generate dummy past_keys inputs without PyTorch installed."""      )
								else:
									import torch
								lowerCAmelCase,   lowerCAmelCase    =	common_inputs["""input_ids"""].shape
								# Not using the same length for past_key_values
								lowerCAmelCase    =	seqlen + 2
								lowerCAmelCase,   lowerCAmelCase    =	self.num_layers
								lowerCAmelCase,   lowerCAmelCase    =	self.num_attention_heads
								lowerCAmelCase    =	(
								    batch,
								    num_encoder_attention_heads,
								    past_key_values_length,
								    self._config.hidden_size // num_encoder_attention_heads,
								)

								lowerCAmelCase    =	common_inputs["""attention_mask"""].dtype
								lowerCAmelCase    =	torch.cat(
								    [common_inputs["""attention_mask"""], torch.ones(A_	,       A_	,       dtype=A_      )]	,       dim=1      )
								lowerCAmelCase    =	[
								    (torch.zeros(A_      ), torch.zeros(A_      )) for _ in range(A_      )
								]
							return common_inputs


						def 				__snake_case    (					self	,       A_	,       A_ = -1	,       A_ = -1	,       A_ = False	,       A_ = None	,       )	->	Mapping[str, Any]:
							# Copied from OnnxConfig.generate_dummy_inputs
							# Did not use super(OnnxConfigWithPast, self).generate_dummy_inputs for code clarity.
							# If dynamic axis (-1) we forward with a fixed dimension of 2 samples to avoid optimizations made by ONNX
							lowerCAmelCase    =	compute_effective_axis_dimension(
							    A_	,       fixed_dimension=OnnxConfig.default_fixed_batch	,       num_token_to_add=0      )

							# If dynamic axis (-1) we forward with a fixed dimension of 8 tokens to avoid optimizations made by ONNX
							lowerCAmelCase    =	tokenizer.num_special_tokens_to_add(A_      )
							lowerCAmelCase    =	compute_effective_axis_dimension(
							    A_	,       fixed_dimension=OnnxConfig.default_fixed_sequence	,       num_token_to_add=A_      )

							# Generate dummy inputs according to compute batch and sequence
							lowerCAmelCase    =	[""" """.join([tokenizer.unk_token]      ) * seq_length] * batch_size
							lowerCAmelCase    =	dict(tokenizer(A_	,       return_tensors=A_      )      )
							return common_inputs


						def 				__snake_case    (					self	,       A_	,       A_ = -1	,       A_ = -1	,       A_ = False	,       A_ = None	,       )	->	Mapping[str, Any]:
							if self.task in ["default", "seq2seq-lm"]:
								lowerCAmelCase    =	self._generate_dummy_inputs_for_default_and_seqaseq_lm(
								    A_	,       batch_size=A_	,       seq_length=A_	,       is_pair=A_	,       framework=A_      )

							elif self.task == "causal-lm":
								lowerCAmelCase    =	self._generate_dummy_inputs_for_causal_lm(
								    A_	,       batch_size=A_	,       seq_length=A_	,       is_pair=A_	,       framework=A_      )
							else:
								lowerCAmelCase    =	self._generate_dummy_inputs_for_sequence_classification_and_question_answering(
								    A_	,       batch_size=A_	,       seq_length=A_	,       is_pair=A_	,       framework=A_      )

							return common_inputs




						def 				__snake_case    (					self	,       A_	,       A_	,       A_	,       A_      )	->	Tuple:
							if self.task in ["default", "seq2seq-lm"]:
								lowerCAmelCase    =	super()._flatten_past_key_values_(A_	,       A_	,       A_	,       A_      )
							else:
								lowerCAmelCase    =	super(A_	,       self      )._flatten_past_key_values_(
								    A_	,       A_	,       A_	,       A_      )