


import numpy as np
import torch
from torch.utils.data import Dataset

from utils import logger





class   __a			(    __UpperCamelCase      ):
 def __init__(   self				, lowerCAmelCase__				, lowerCAmelCase__ )					->				Any:




        '''simple docstring'''
        lowercase__:   Any  			=   params

        lowercase__:   List[Any]  			=   np.array(lowerCAmelCase__ )
        lowercase__:   Optional[Any]  			=   np.array([len(lowerCAmelCase__ ) for t in data] )

        self.check()
        self.remove_long_sequences()
        self.remove_empty_sequences()
        self.remove_unknown_sequences()
        self.check()
        self.print_statistics()
 def __getitem__(   self				, lowerCAmelCase__ )					->				List[Any]:




        '''simple docstring'''
        return (self.token_ids[index], self.lengths[index])
 def __len__(   self )					->				List[Any]:




        '''simple docstring'''
        return len(self.lengths )
 def 		SCREAMING_SNAKE_CASE__   (   self )					->				Tuple:




        '''simple docstring'''
        assert len(self.token_ids ) == len(self.lengths )
        assert all(self.lengths[i] == len(self.token_ids[i] ) for i in range(len(self.lengths ) ) )
 def 		SCREAMING_SNAKE_CASE__   (   self )					->				Union[str, Any]:




        '''simple docstring'''
        lowercase__:   Any  			=   self.params.max_model_input_size
        lowercase__:   Dict  			=   self.lengths > max_len
        logger.info(F'Splitting {sum(lowerCAmelCase__ )} too long sequences.' )

        def divide_chunks(lowerCAmelCase__				, lowerCAmelCase__ ):
               return [l[i : i + n] for i in range(0				, len(lowerCAmelCase__ )				, lowerCAmelCase__ )]

        lowercase__:   str  			=   []
        lowercase__:   List[str]  			=   []
        if self.params.mlm:
               lowercase__			,						lowercase__:   str  			=   self.params.special_tok_ids['cls_token'], self.params.special_tok_ids['sep_token']
        else:
               lowercase__			,						lowercase__:   int  			=   self.params.special_tok_ids['bos_token'], self.params.special_tok_ids['eos_token']

        for seq_, len_ in zip(self.token_ids				, self.lengths ):
               assert (seq_[0] == cls_id) and (seq_[-1] == sep_id), seq_
               if len_ <= max_len:
                      new_tok_ids.append(seq_ )
                      new_lengths.append(len_ )
               else:
                      lowercase__:   Optional[Any]  			=   []
                      for sub_s in divide_chunks(seq_				, max_len - 2 ):
                             if sub_s[0] != cls_id:
                                    lowercase__:   int  			=   np.insert(lowerCAmelCase__				, 0				, lowerCAmelCase__ )
                             if sub_s[-1] != sep_id:
                                    lowercase__:   Union[str, Any]  			=   np.insert(lowerCAmelCase__				, len(lowerCAmelCase__ )				, lowerCAmelCase__ )
                             assert len(lowerCAmelCase__ ) <= max_len
                             assert (sub_s[0] == cls_id) and (sub_s[-1] == sep_id), sub_s
                             sub_seqs.append(lowerCAmelCase__ )

                      new_tok_ids.extend(lowerCAmelCase__ )
                      new_lengths.extend([len(lowerCAmelCase__ ) for l in sub_seqs] )

        lowercase__:   Union[str, Any]  			=   np.array(lowerCAmelCase__ )
        lowercase__:   Union[str, Any]  			=   np.array(lowerCAmelCase__ )
 def 		SCREAMING_SNAKE_CASE__   (   self )					->				Tuple:




        '''simple docstring'''
        lowercase__:   Dict  			=   len(self )
        lowercase__:   Union[str, Any]  			=   self.lengths > 11
        lowercase__:   List[Any]  			=   self.token_ids[indices]
        lowercase__:   Optional[Any]  			=   self.lengths[indices]
        lowercase__:   List[str]  			=   len(self )
        logger.info(F'Remove {init_size - new_size} too short (<=11 tokens) sequences.' )
 def 		SCREAMING_SNAKE_CASE__   (   self )					->				int:




        '''simple docstring'''
        if "unk_token" not in self.params.special_tok_ids:
               return
        else:
               lowercase__:   List[str]  			=   self.params.special_tok_ids['unk_token']
        lowercase__:   str  			=   len(self )
        lowercase__:   Tuple  			=   np.array([np.count_nonzero(a == unk_token_id ) for a in self.token_ids] )
        lowercase__:   Any  			=   (unk_occs / self.lengths) < 0.5
        lowercase__:   Tuple  			=   self.token_ids[indices]
        lowercase__:   str  			=   self.lengths[indices]
        lowercase__:   Dict  			=   len(self )
        logger.info(F'Remove {init_size - new_size} sequences with a high level of unknown tokens (50%).' )
 def 		SCREAMING_SNAKE_CASE__   (   self )					->				str:




        '''simple docstring'''
        if not self.params.is_master:
               return
        logger.info(F'{len(self )} sequences' )
        # data_len = sum(self.lengths)
        # nb_unique_tokens = len(Counter(list(chain(*self.token_ids))))
        # logger.info(f'{data_len} tokens ({nb_unique_tokens} unique)')

        # unk_idx = self.params.special_tok_ids['unk_token']
        # nb_unknown = sum([(t==unk_idx).sum() for t in self.token_ids])
        # logger.info(f'{nb_unknown} unknown tokens (covering {100*nb_unknown/data_len:.2f}% of the data)')
 def 		SCREAMING_SNAKE_CASE__   (   self				, lowerCAmelCase__ )					->				int:




        '''simple docstring'''
        lowercase__:   Union[str, Any]  			=   [t[0] for t in batch]
        lowercase__:   Dict  			=   [t[1] for t in batch]
        assert len(lowerCAmelCase__ ) == len(lowerCAmelCase__ )

        # Max for paddings
        lowercase__:   List[Any]  			=   max(lowerCAmelCase__ )

        # Pad token ids
        if self.params.mlm:
               lowercase__:   Dict  			=   self.params.special_tok_ids['pad_token']
        else:
               lowercase__:   Optional[Any]  			=   self.params.special_tok_ids['unk_token']
        lowercase__:   int  			=   [list(t.astype(lowerCAmelCase__ ) ) + [pad_idx] * (max_seq_len_ - len(lowerCAmelCase__ )) for t in token_ids]
        assert len(tk_ ) == len(lowerCAmelCase__ )
        assert all(len(lowerCAmelCase__ ) == max_seq_len_ for t in tk_ )

        lowercase__:   Tuple  			=   torch.tensor(tk_ )  # (bs, max_seq_len_)
        lowercase__:   Optional[Any]  			=   torch.tensor(lowerCAmelCase__ )  # (bs)
        return tk_t, lg_t






from collections import UserDict
from typing import List, Union

from ..utils import (
    add_end_docstrings,
    is_tf_available,
    is_torch_available,
    is_vision_available,
    logging,
    requires_backends,
)
from .base import PIPELINE_INIT_ARGS, Pipeline


if is_vision_available():
 from PIL import Image

 from ..image_utils import load_image

if is_torch_available():
 from ..models.auto.modeling_auto import MODEL_FOR_ZERO_SHOT_IMAGE_CLASSIFICATION_MAPPING

if is_tf_available():
 from ..models.auto.modeling_tf_auto import TF_MODEL_FOR_ZERO_SHOT_IMAGE_CLASSIFICATION_MAPPING
 from ..tf_utils import stable_softmax

__lowerCAmelCase		       =							logging.get_logger(__name__)





@add_end_docstrings(__UpperCamelCase      )
class   __a			(    __UpperCamelCase      ):
 def __init__(   self				, **lowerCAmelCase__ )					->				List[str]:




        '''simple docstring'''
        super().__init__(**lowerCAmelCase__ )

        requires_backends(self				, 'vision' )
        self.check_model_type(
            TF_MODEL_FOR_ZERO_SHOT_IMAGE_CLASSIFICATION_MAPPING
            if self.framework == 'tf'
            else MODEL_FOR_ZERO_SHOT_IMAGE_CLASSIFICATION_MAPPING )
 def __call__(   self				, lowerCAmelCase__				, **lowerCAmelCase__ )					->				Optional[Any]:




        '''simple docstring'''
        return super().__call__(lowerCAmelCase__				, **lowerCAmelCase__ )
 def 		SCREAMING_SNAKE_CASE__   (   self				, **lowerCAmelCase__ )					->				Dict:




        '''simple docstring'''
        lowercase__:   int  			=   {}
        if "candidate_labels" in kwargs:
               lowercase__:   Dict  			=   kwargs['candidate_labels']
        if "hypothesis_template" in kwargs:
               lowercase__:   List[Any]  			=   kwargs['hypothesis_template']

        return preprocess_params, {}, {}
 def 		SCREAMING_SNAKE_CASE__   (   self				, lowerCAmelCase__				, lowerCAmelCase__=None				, lowerCAmelCase__="This is a photo of {}." )					->				int:




        '''simple docstring'''
        lowercase__:   Optional[int]  			=   load_image(lowerCAmelCase__ )
        lowercase__:   Dict  			=   self.image_processor(images=[image]				, return_tensors=self.framework )
        lowercase__:   Tuple  			=   candidate_labels
        lowercase__:   List[str]  			=   [hypothesis_template.format(lowerCAmelCase__ ) for x in candidate_labels]
        lowercase__:   Optional[Any]  			=   self.tokenizer(lowerCAmelCase__				, return_tensors=self.framework				, padding=lowerCAmelCase__ )
        lowercase__:   str  			=   [text_inputs]
        return inputs
 def 		SCREAMING_SNAKE_CASE__   (   self				, lowerCAmelCase__ )					->				int:




        '''simple docstring'''
        lowercase__:   str  			=   model_inputs.pop('candidate_labels' )
        lowercase__:   List[str]  			=   model_inputs.pop('text_inputs' )
        if isinstance(text_inputs[0]				, lowerCAmelCase__ ):
               lowercase__:   Any  			=   text_inputs[0]
        else:
               # Batching case.
               lowercase__:   Optional[int]  			=   text_inputs[0][0]

        lowercase__:   Tuple  			=   self.model(**lowerCAmelCase__				, **lowerCAmelCase__ )

        lowercase__:   Any  			=   {
            'candidate_labels': candidate_labels,
            'logits': outputs.logits_per_image,
        }
        return model_outputs
 def 		SCREAMING_SNAKE_CASE__   (   self				, lowerCAmelCase__ )					->				Union[str, Any]:




        '''simple docstring'''
        lowercase__:   Tuple  			=   model_outputs.pop('candidate_labels' )
        lowercase__:   Dict  			=   model_outputs['logits'][0]
        if self.framework == "pt":
               lowercase__:   Optional[int]  			=   logits.softmax(dim=-1 ).squeeze(-1 )
               lowercase__:   Dict  			=   probs.tolist()
               if not isinstance(lowerCAmelCase__				, lowerCAmelCase__ ):
                      lowercase__:   Dict  			=   [scores]
        elif self.framework == "tf":
               lowercase__:   Optional[int]  			=   stable_softmax(lowerCAmelCase__				, axis=-1 )
               lowercase__:   Union[str, Any]  			=   probs.numpy().tolist()
        else:
               raise ValueError(F'Unsupported framework: {self.framework}' )

        lowercase__:   List[Any]  			=   [
            {'score': score, 'label': candidate_label}
            for score, candidate_label in sorted(zip(lowerCAmelCase__				, lowerCAmelCase__ )				, key=lambda lowerCAmelCase__ : -x[0] )
        ]
        return result


