
import unittest

import numpy as np

from transformers.testing_utils import require_torch, require_vision
from transformers.utils import is_torch_available, is_vision_available

from ...test_image_processing_common import ImageProcessingSavingTestMixin, prepare_video_inputs


if is_torch_available():
						import torch

if is_vision_available():
						from PIL import Image

						from transformers import VideoMAEImageProcessor



class     __snake_case						(					unittest.TestCase						):




							def __init__(	self					:	str    ,    A_					:	str    ,    A_					:	int=7    ,    A_					:	List[Any]=3    ,    A_					:	Dict=1_0    ,    A_					:	List[str]=1_8    ,    A_					:	List[Any]=3_0    ,    A_					:	str=4_0_0    ,    A_					:	str=True    ,    A_					:	Tuple=None    ,    A_					:	Optional[Any]=True    ,    A_					:	Tuple=[0.5, 0.5, 0.5]    ,    A_					:	Any=[0.5, 0.5, 0.5]    ,    A_					:	List[str]=None    ,    ):
									lowerCAmelCase_      :					Optional[Any]     =			size if size is not None else {'''shortest_edge''': 1_8}
									lowerCAmelCase_      :					Optional[int]     =			crop_size if crop_size is not None else {'''height''': 1_8, '''width''': 1_8}

									lowerCAmelCase_      :					Any     =			parent
									lowerCAmelCase_      :					Optional[Any]     =			batch_size
									lowerCAmelCase_      :					List[Any]     =			num_channels
									lowerCAmelCase_      :					Optional[int]     =			num_frames
									lowerCAmelCase_      :					Optional[int]     =			image_size
									lowerCAmelCase_      :					List[Any]     =			min_resolution
									lowerCAmelCase_      :					str     =			max_resolution
									lowerCAmelCase_      :					List[str]     =			do_resize
									lowerCAmelCase_      :					int     =			size
									lowerCAmelCase_      :					Union[str, Any]     =			do_normalize
									lowerCAmelCase_      :					Union[str, Any]     =			image_mean
									lowerCAmelCase_      :					List[str]     =			image_std
									lowerCAmelCase_      :					Any     =			crop_size







							def        UpperCAmelCase__      (	self					:	Any):
									return {
									    "image_mean": self.image_mean,
									    "image_std": self.image_std,
									    "do_normalize": self.do_normalize,
									    "do_resize": self.do_resize,
									    "size": self.size,
									    "crop_size": self.crop_size,
									}





@require_torch
@require_vision
class     __snake_case						(					UpperCamelCase_						,unittest.TestCase						):
							_a      				=			VideoMAEImageProcessor if is_vision_available() else None




							def        UpperCAmelCase__      (	self					:	Tuple):
									lowerCAmelCase_      :					int     =			VideoMAEImageProcessingTester(self)




							@property
							def        UpperCAmelCase__      (	self					:	Tuple):
									return self.image_processor_tester.prepare_image_processor_dict()




							def        UpperCAmelCase__      (	self					:	Optional[int]):
									lowerCAmelCase_      :					int     =			self.image_processing_class(**self.image_processor_dict)
									self.assertTrue(hasattr(A_    ,    '''image_mean'''))
									self.assertTrue(hasattr(A_    ,    '''image_std'''))
									self.assertTrue(hasattr(A_    ,    '''do_normalize'''))
									self.assertTrue(hasattr(A_    ,    '''do_resize'''))
									self.assertTrue(hasattr(A_    ,    '''do_center_crop'''))
									self.assertTrue(hasattr(A_    ,    '''size'''))




							def        UpperCAmelCase__      (	self					:	Dict):
									lowerCAmelCase_      :					int     =			self.image_processing_class.from_dict(self.image_processor_dict)
									self.assertEqual(image_processor.size    ,    {'''shortest_edge''': 1_8})
									self.assertEqual(image_processor.crop_size    ,    {'''height''': 1_8, '''width''': 1_8})

									lowerCAmelCase_      :					str     =			self.image_processing_class.from_dict(self.image_processor_dict    ,    size=4_2    ,    crop_size=8_4)
									self.assertEqual(image_processor.size    ,    {'''shortest_edge''': 4_2})
									self.assertEqual(image_processor.crop_size    ,    {'''height''': 8_4, '''width''': 8_4})




							def        UpperCAmelCase__      (	self					:	Dict):
									pass




							def        UpperCAmelCase__      (	self					:	str):
									# Initialize image_processing
									lowerCAmelCase_      :					int     =			self.image_processing_class(**self.image_processor_dict)
									# create random PIL videos
									lowerCAmelCase_      :					Optional[int]     =			prepare_video_inputs(self.image_processor_tester    ,    equal_resolution=A_)
									for video in video_inputs:
											self.assertIsInstance(A_    ,    A_)
											self.assertIsInstance(video[0]    ,    Image.Image)

									# Test not batched input
									lowerCAmelCase_      :					int     =			image_processing(video_inputs[0]    ,    return_tensors='''pt''').pixel_values
									self.assertEqual(
									    encoded_videos.shape    ,    (
									        1,
									        self.image_processor_tester.num_frames,
									        self.image_processor_tester.num_channels,
									        self.image_processor_tester.crop_size['''height'''],
									        self.image_processor_tester.crop_size['''width'''],
									    )    ,    )

									# Test batched
									lowerCAmelCase_      :					Tuple     =			image_processing(A_    ,    return_tensors='''pt''').pixel_values
									self.assertEqual(
									    encoded_videos.shape    ,    (
									        self.image_processor_tester.batch_size,
									        self.image_processor_tester.num_frames,
									        self.image_processor_tester.num_channels,
									        self.image_processor_tester.crop_size['''height'''],
									        self.image_processor_tester.crop_size['''width'''],
									    )    ,    )




							def        UpperCAmelCase__      (	self					:	int):
									# Initialize image_processing
									lowerCAmelCase_      :					Dict     =			self.image_processing_class(**self.image_processor_dict)
									# create random numpy tensors
									lowerCAmelCase_      :					str     =			prepare_video_inputs(self.image_processor_tester    ,    equal_resolution=A_    ,    numpify=A_)
									for video in video_inputs:
											self.assertIsInstance(A_    ,    A_)
											self.assertIsInstance(video[0]    ,    np.ndarray)

									# Test not batched input
									lowerCAmelCase_      :					Tuple     =			image_processing(video_inputs[0]    ,    return_tensors='''pt''').pixel_values
									self.assertEqual(
									    encoded_videos.shape    ,    (
									        1,
									        self.image_processor_tester.num_frames,
									        self.image_processor_tester.num_channels,
									        self.image_processor_tester.crop_size['''height'''],
									        self.image_processor_tester.crop_size['''width'''],
									    )    ,    )

									# Test batched
									lowerCAmelCase_      :					Union[str, Any]     =			image_processing(A_    ,    return_tensors='''pt''').pixel_values
									self.assertEqual(
									    encoded_videos.shape    ,    (
									        self.image_processor_tester.batch_size,
									        self.image_processor_tester.num_frames,
									        self.image_processor_tester.num_channels,
									        self.image_processor_tester.crop_size['''height'''],
									        self.image_processor_tester.crop_size['''width'''],
									    )    ,    )







							def        UpperCAmelCase__      (	self					:	List[str]):
									# Initialize image_processing
									lowerCAmelCase_      :					Tuple     =			self.image_processing_class(**self.image_processor_dict)
									# create random PyTorch tensors
									lowerCAmelCase_      :					Tuple     =			prepare_video_inputs(self.image_processor_tester    ,    equal_resolution=A_    ,    torchify=A_)
									for video in video_inputs:
											self.assertIsInstance(A_    ,    A_)
											self.assertIsInstance(video[0]    ,    torch.Tensor)

									# Test not batched input
									lowerCAmelCase_      :					List[str]     =			image_processing(video_inputs[0]    ,    return_tensors='''pt''').pixel_values
									self.assertEqual(
									    encoded_videos.shape    ,    (
									        1,
									        self.image_processor_tester.num_frames,
									        self.image_processor_tester.num_channels,
									        self.image_processor_tester.crop_size['''height'''],
									        self.image_processor_tester.crop_size['''width'''],
									    )    ,    )

									# Test batched
									lowerCAmelCase_      :					List[Any]     =			image_processing(A_    ,    return_tensors='''pt''').pixel_values
									self.assertEqual(
									    encoded_videos.shape    ,    (
									        self.image_processor_tester.batch_size,
									        self.image_processor_tester.num_frames,
									        self.image_processor_tester.num_channels,
									        self.image_processor_tester.crop_size['''height'''],
									        self.image_processor_tester.crop_size['''width'''],
									    )    ,    )










import math
from typing import Optional

import torch
import torch.utils.checkpoint as checkpoint
from torch import nn

from ....modeling_utils import PreTrainedModel
from ....utils import add_start_docstrings, logging
from ...bert.modeling_bert import BertModel
from .configuration_retribert import RetriBertConfig


A__  :  Tuple       = logging.get_logger(__name__)

A__  :  List[str]       = [
    '''yjernite/retribert-base-uncased''',
    # See all RetriBert models at https://huggingface.co/models?filter=retribert
]



class     __snake_case						(					UpperCamelCase_						):
							_a      				=			RetriBertConfig
							_a      				=			None
							_a      				=			'''retribert'''




							def        UpperCAmelCase__      (	self					:	Optional[int]    ,    A_					:	Union[str, Any]):
									if isinstance(A_    ,    nn.Linear):
											module.weight.data.normal_(mean=0.0    ,    std=self.config.initializer_range)
											if module.bias is not None:
													module.bias.data.zero_()
									elif isinstance(A_    ,    nn.Embedding):
											module.weight.data.normal_(mean=0.0    ,    std=self.config.initializer_range)
											if module.padding_idx is not None:
													module.weight.data[module.padding_idx].zero_()
									elif isinstance(A_    ,    nn.LayerNorm):
											module.bias.data.zero_()
											module.weight.data.fill_(1.0)





A__  :  str       = R'''

    This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
    library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
    etc.)

    This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
    Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
    and behavior.

    Parameters:
        config ([`RetriBertConfig`]): Model configuration class with all the parameters of the model.
            Initializing with a config file does not load the weights associated with the model, only the
            configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
'''



@add_start_docstrings(
    '''Bert Based model to embed queries or document for document retrieval.'''						,UpperCamelCase_						,)
class     __snake_case						(					UpperCamelCase_						):




							def __init__(	self					:	Optional[int]    ,    A_					:	RetriBertConfig):
									super().__init__(A_)
									lowerCAmelCase_      :					Optional[int]     =			config.projection_dim

									lowerCAmelCase_      :					int     =			BertModel(A_)
									lowerCAmelCase_      :					int     =			None if config.share_encoders else BertModel(A_)
									lowerCAmelCase_      :					str     =			nn.Dropout(config.hidden_dropout_prob)
									lowerCAmelCase_      :					Dict     =			nn.Linear(config.hidden_size    ,    config.projection_dim    ,    bias=A_)
									lowerCAmelCase_      :					Any     =			nn.Linear(config.hidden_size    ,    config.projection_dim    ,    bias=A_)

									lowerCAmelCase_      :					int     =			nn.CrossEntropyLoss(reduction='''mean''')

									# Initialize weights and apply final processing
									self.post_init()




							def        UpperCAmelCase__      (	self					:	str    ,    A_					:	Any    ,    A_					:	Optional[int]    ,    A_					:	Optional[int]    ,    A_					:	Optional[Any]=-1    ,    ):
									# reproduces BERT forward pass with checkpointing
									if checkpoint_batch_size < 0 or input_ids.shape[0] < checkpoint_batch_size:
											return sent_encoder(A_    ,    attention_mask=A_)[1]
									else:
											# prepare implicit variables
											lowerCAmelCase_      :					Any     =			input_ids.device
											lowerCAmelCase_      :					str     =			input_ids.size()
											lowerCAmelCase_      :					Dict     =			torch.zeros(A_    ,    dtype=torch.long    ,    device=A_)
											lowerCAmelCase_      :					List[str]     =			[None] * sent_encoder.config.num_hidden_layers
											lowerCAmelCase_      :					torch.Tensor     =			sent_encoder.get_extended_attention_mask(
											    A_    ,    A_)

											# define function for checkpointing
											def partial_encode(*A_					:	List[Any]):
													lowerCAmelCase_      :					Optional[Any]     =			sent_encoder.encoder(
													    inputs[0]    ,    attention_mask=inputs[1]    ,    head_mask=A_    ,    )
													lowerCAmelCase_      :					Any     =			encoder_outputs[0]
													lowerCAmelCase_      :					Optional[Any]     =			sent_encoder.pooler(A_)
													return pooled_output

											# run embedding layer on everything at once
											lowerCAmelCase_      :					str     =			sent_encoder.embeddings(
											    input_ids=A_    ,    position_ids=A_    ,    token_type_ids=A_    ,    inputs_embeds=A_)
											# run encoding and pooling on one mini-batch at a time
											lowerCAmelCase_      :					str     =			[]
											for b in range(math.ceil(input_ids.shape[0] / checkpoint_batch_size)):
													lowerCAmelCase_      :					Optional[Any]     =			embedding_output[b * checkpoint_batch_size : (b + 1) * checkpoint_batch_size]
													lowerCAmelCase_      :					int     =			extended_attention_mask[b * checkpoint_batch_size : (b + 1) * checkpoint_batch_size]
													lowerCAmelCase_      :					str     =			checkpoint.checkpoint(A_    ,    A_    ,    A_)
													pooled_output_list.append(A_)
											return torch.cat(A_    ,    dim=0)




							def        UpperCAmelCase__      (	self					:	List[str]    ,    A_					:	List[Any]    ,    A_					:	Union[str, Any]=None    ,    A_					:	Dict=-1    ,    ):
									lowerCAmelCase_      :					Optional[int]     =			self.embed_sentences_checkpointed(
									    A_    ,    A_    ,    self.bert_query    ,    A_    ,    )
									return self.project_query(A_)




							def        UpperCAmelCase__      (	self					:	Optional[Any]    ,    A_					:	str    ,    A_					:	int=None    ,    A_					:	Any=-1    ,    ):
									lowerCAmelCase_      :					Union[str, Any]     =			self.embed_sentences_checkpointed(
									    A_    ,    A_    ,    self.bert_query if self.bert_doc is None else self.bert_doc    ,    A_    ,    )
									return self.project_doc(A_)







							def        UpperCAmelCase__      (	self					:	List[Any]    ,    A_					:	torch.LongTensor    ,    A_					:	Optional[torch.FloatTensor]    ,    A_					:	torch.LongTensor    ,    A_					:	Optional[torch.FloatTensor]    ,    A_					:	int = -1    ,    ):
									lowerCAmelCase_      :					List[Any]     =			input_ids_query.device
									lowerCAmelCase_      :					List[str]     =			self.embed_questions(A_    ,    A_    ,    A_)
									lowerCAmelCase_      :					Union[str, Any]     =			self.embed_answers(A_    ,    A_    ,    A_)
									lowerCAmelCase_      :					Any     =			torch.mm(A_    ,    a_reps.t())
									lowerCAmelCase_      :					int     =			self.ce_loss(A_    ,    torch.arange(compare_scores.shape[1]).to(A_))
									lowerCAmelCase_      :					str     =			self.ce_loss(compare_scores.t()    ,    torch.arange(compare_scores.shape[0]).to(A_))
									lowerCAmelCase_      :					List[Any]     =			(loss_qa + loss_aq) / 2
									return loss





