import json
import os
from functools import lru_cache
from typing import List, Optional, Tuple

import regex as re

from ...tokenization_utils import AddedToken, PreTrainedTokenizer
from ...utils import logging


UpperCamelCase													=		logging.get_logger(__name__)

UpperCamelCase													=		{
    '''vocab_file''': '''vocab.json''',
    '''merges_file''': '''merges.txt''',
}

UpperCamelCase													=		{
    '''vocab_file''': {
        '''roberta-base''': '''https://huggingface.co/roberta-base/resolve/main/vocab.json''',
        '''roberta-large''': '''https://huggingface.co/roberta-large/resolve/main/vocab.json''',
        '''roberta-large-mnli''': '''https://huggingface.co/roberta-large-mnli/resolve/main/vocab.json''',
        '''distilroberta-base''': '''https://huggingface.co/distilroberta-base/resolve/main/vocab.json''',
        '''roberta-base-openai-detector''': '''https://huggingface.co/roberta-base-openai-detector/resolve/main/vocab.json''',
        '''roberta-large-openai-detector''': (
            '''https://huggingface.co/roberta-large-openai-detector/resolve/main/vocab.json'''
        ),
    },
    '''merges_file''': {
        '''roberta-base''': '''https://huggingface.co/roberta-base/resolve/main/merges.txt''',
        '''roberta-large''': '''https://huggingface.co/roberta-large/resolve/main/merges.txt''',
        '''roberta-large-mnli''': '''https://huggingface.co/roberta-large-mnli/resolve/main/merges.txt''',
        '''distilroberta-base''': '''https://huggingface.co/distilroberta-base/resolve/main/merges.txt''',
        '''roberta-base-openai-detector''': '''https://huggingface.co/roberta-base-openai-detector/resolve/main/merges.txt''',
        '''roberta-large-openai-detector''': (
            '''https://huggingface.co/roberta-large-openai-detector/resolve/main/merges.txt'''
        ),
    },
}

UpperCamelCase													=		{
    '''roberta-base''': 512,
    '''roberta-large''': 512,
    '''roberta-large-mnli''': 512,
    '''distilroberta-base''': 512,
    '''roberta-base-openai-detector''': 512,
    '''roberta-large-openai-detector''': 512,
}

@lru_cache()
def     lowercase_       (    ):
    lowercase__				:     Tuple					      =       (
        list(range(ord("!")	,			ord("~") + 1)) + list(range(ord("¡")	,			ord("¬") + 1)) + list(range(ord("®")	,			ord("ÿ") + 1))
    )
    lowercase__				:     Optional[int]					      =       bs[:]
    lowercase__				:     List[str]					      =       0
    for b in range(2**8):
        if b not in bs:
            bs.append(_lowerCamelCase)
            cs.append(2**8 + n)
            n += 1
    lowercase__				:     Union[str, Any]					      =       [chr(_lowerCamelCase) for n in cs]
    return dict(zip(_lowerCamelCase	,			_lowerCamelCase))

def     lowercase_       (    _lowerCamelCase							: Optional[int]):
    lowercase__				:     List[Any]					      =       set()
    lowercase__				:     List[Any]					      =       word[0]
    for char in word[1:]:
        pairs.add((prev_char, char))
        lowercase__				:     Optional[Any]					      =       char
    return pairs



class 						snake_case_ (	__A ):
   __A			:	Any        =       VOCAB_FILES_NAMES
   __A			:	List[Any]        =       PRETRAINED_VOCAB_FILES_MAP
   __A			:	List[Any]        =       PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
   __A			:	Tuple        =       ["input_ids", "attention_mask"]






   def __init__(   self       :  Union[str, Any]			,		lowercase_       :  Dict			,		lowercase_       :  Optional[int]			,		lowercase_       :  Optional[int]="replace"			,		lowercase_       :  List[str]="<s>"			,		lowercase_       :  Optional[int]="</s>"			,		lowercase_       :  List[str]="</s>"			,		lowercase_       :  Optional[int]="<s>"			,		lowercase_       :  List[str]="<unk>"			,		lowercase_       :  Union[str, Any]="<pad>"			,		lowercase_       :  Dict="<mask>"			,		lowercase_       :  Optional[Any]=False			,		**lowercase_       :  Tuple			,		)      ->		int:
       lowercase__				:     str					      =       AddedToken(lowercase_			,		lstrip=lowercase_			,		rstrip=lowercase_						) if isinstance(lowercase_			,		lowercase_						) else bos_token
       lowercase__				:     int					      =       AddedToken(lowercase_			,		lstrip=lowercase_			,		rstrip=lowercase_						) if isinstance(lowercase_			,		lowercase_						) else eos_token
       lowercase__				:     Optional[Any]					      =       AddedToken(lowercase_			,		lstrip=lowercase_			,		rstrip=lowercase_						) if isinstance(lowercase_			,		lowercase_						) else sep_token
       lowercase__				:     List[Any]					      =       AddedToken(lowercase_			,		lstrip=lowercase_			,		rstrip=lowercase_						) if isinstance(lowercase_			,		lowercase_						) else cls_token
       lowercase__				:     List[str]					      =       AddedToken(lowercase_			,		lstrip=lowercase_			,		rstrip=lowercase_						) if isinstance(lowercase_			,		lowercase_						) else unk_token
       lowercase__				:     int					      =       AddedToken(lowercase_			,		lstrip=lowercase_			,		rstrip=lowercase_						) if isinstance(lowercase_			,		lowercase_						) else pad_token

       # Mask token behave like a normal word, i.e. include the space before it
       lowercase__				:     List[str]					      =       AddedToken(lowercase_			,		lstrip=lowercase_			,		rstrip=lowercase_						) if isinstance(lowercase_			,		lowercase_						) else mask_token

       super().__init__(
           errors=lowercase_			,		bos_token=lowercase_			,		eos_token=lowercase_			,		unk_token=lowercase_			,		sep_token=lowercase_			,		cls_token=lowercase_			,		pad_token=lowercase_			,		mask_token=lowercase_			,		add_prefix_space=lowercase_			,		**lowercase_			,		)

       with open(lowercase_			,		encoding="utf-8"						) as vocab_handle:
           lowercase__				:     Union[str, Any]					      =       json.load(lowercase_						)
       lowercase__				:     Optional[Any]					      =       {v: k for k, v in self.encoder.items()}
       lowercase__				:     List[Any]					      =       errors  # how to handle errors in decoding
       lowercase__				:     int					      =       bytes_to_unicode()
       lowercase__				:     Any					      =       {v: k for k, v in self.byte_encoder.items()}
       with open(lowercase_			,		encoding="utf-8"						) as merges_handle:
           lowercase__				:     Optional[Any]					      =       merges_handle.read().split("\n"						)[1:-1]
       lowercase__				:     Optional[Any]					      =       [tuple(merge.split()						) for merge in bpe_merges]
       lowercase__				:     Tuple					      =       dict(zip(lowercase_			,		range(len(lowercase_						)						)						)						)
       lowercase__				:     List[Any]					      =       {}
       lowercase__				:     Dict					      =       add_prefix_space

       # Should have added re.IGNORECASE so BPE merges can happen for capitalized versions of contractions
       lowercase__				:     Tuple					      =       re.compile(R"'s|'t|'re|'ve|'m|'ll|'d| ?\p{L}+| ?\p{N}+| ?[^\s\p{L}\p{N}]+|\s+(?!\S)|\s+"						)






   @property
   def    __UpperCamelCase  (   self       :  List[str]						)      ->		Optional[int]:
       return len(self.encoder						)






   def    __UpperCamelCase  (   self       :  List[str]						)      ->		List[Any]:
       return dict(self.encoder			,		**self.added_tokens_encoder						)






   def    __UpperCamelCase  (   self       :  List[Any]			,		lowercase_       :  Union[str, Any]						)      ->		List[str]:
       if token in self.cache:
           return self.cache[token]
       lowercase__				:     Optional[int]					      =       tuple(lowercase_						)
       lowercase__				:     List[str]					      =       get_pairs(lowercase_						)

       if not pairs:
           return token

       while True:
           lowercase__				:     Optional[int]					      =       min(lowercase_			,		key=lambda lowercase_						: self.bpe_ranks.get(lowercase_			,		float("inf"						)						)						)
           if bigram not in self.bpe_ranks:
               break
           lowercase__      ,     lowercase__				:     Optional[int]					      =       bigram
           lowercase__				:     List[str]					      =       []
           lowercase__				:     str					      =       0
           while i < len(lowercase_						):
               try:
                   lowercase__				:     Optional[Any]					      =       word.index(lowercase_			,		lowercase_						)
               except ValueError:
                   new_word.extend(word[i:]						)
                   break
               else:
                   new_word.extend(word[i:j]						)
                   lowercase__				:     List[Any]					      =       j

               if word[i] == first and i < len(lowercase_						) - 1 and word[i + 1] == second:
                   new_word.append(first + second						)
                   i += 2
               else:
                   new_word.append(word[i]						)
                   i += 1
           lowercase__				:     Union[str, Any]					      =       tuple(lowercase_						)
           lowercase__				:     str					      =       new_word
           if len(lowercase_						) == 1:
               break
           else:
               lowercase__				:     List[Any]					      =       get_pairs(lowercase_						)
       lowercase__				:     List[str]					      =       " ".join(lowercase_						)
       lowercase__				:     List[Any]					      =       word
       return word






   def    __UpperCamelCase  (   self       :  Optional[int]			,		lowercase_       :  int						)      ->		int:
       lowercase__				:     List[Any]					      =       []
       for token in re.findall(self.pat			,		lowercase_						):
           lowercase__				:     Dict					      =       "".join(
               self.byte_encoder[b] for b in token.encode("utf-8"						)						)  # Maps all our bytes to unicode strings, avoiding control tokens of the BPE (spaces in our case)
           bpe_tokens.extend(bpe_token for bpe_token in self.bpe(lowercase_						).split(" "						)						)
       return bpe_tokens






   def    __UpperCamelCase  (   self       :  Dict			,		lowercase_       :  Union[str, Any]						)      ->		List[str]:
       return self.encoder.get(lowercase_			,		self.encoder.get(self.unk_token						)						)






   def    __UpperCamelCase  (   self       :  str			,		lowercase_       :  int						)      ->		int:
       return self.decoder.get(lowercase_						)






   def    __UpperCamelCase  (   self       :  Optional[int]			,		lowercase_       :  List[Any]						)      ->		Optional[Any]:
       lowercase__				:     Optional[Any]					      =       "".join(lowercase_						)
       lowercase__				:     Optional[int]					      =       bytearray([self.byte_decoder[c] for c in text]						).decode("utf-8"			,		errors=self.errors						)
       return text






   def    __UpperCamelCase  (   self       :  Tuple			,		lowercase_       :  str			,		lowercase_       :  Optional[str] = None						)      ->		Tuple[str]:
       if not os.path.isdir(lowercase_						):
           logger.error(F'''Vocabulary path ({save_directory}) should be a directory'''						)
           return
       lowercase__				:     Optional[int]					      =       os.path.join(
           lowercase_			,		(filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]						)
       lowercase__				:     List[Any]					      =       os.path.join(
           lowercase_			,		(filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["merges_file"]						)

       with open(lowercase_			,		"w"			,		encoding="utf-8"						) as f:
           f.write(json.dumps(self.encoder			,		indent=2			,		sort_keys=lowercase_			,		ensure_ascii=lowercase_						) + "\n"						)

       lowercase__				:     Optional[Any]					      =       0
       with open(lowercase_			,		"w"			,		encoding="utf-8"						) as writer:
           writer.write("#version: 0.2\n"						)
           for bpe_tokens, token_index in sorted(self.bpe_ranks.items()			,		key=lambda lowercase_						: kv[1]						):
               if index != token_index:
                   logger.warning(
                       F'''Saving vocabulary to {merge_file}: BPE merge indices are not consecutive.'''
                       " Please check that the tokenizer is not corrupted!"						)
                   lowercase__				:     str					      =       token_index
               writer.write(" ".join(lowercase_						) + "\n"						)
               index += 1

       return vocab_file, merge_file






   def    __UpperCamelCase  (   self       :  Optional[Any]			,		lowercase_       :  List[int]			,		lowercase_       :  Optional[List[int]] = None						)      ->		List[int]:
       if token_ids_a is None:
           return [self.cls_token_id] + token_ids_a + [self.sep_token_id]
       lowercase__				:     str					      =       [self.cls_token_id]
       lowercase__				:     List[Any]					      =       [self.sep_token_id]
       return cls + token_ids_a + sep + sep + token_ids_a + sep






   def    __UpperCamelCase  (   self       :  str			,		lowercase_       :  List[int]			,		lowercase_       :  Optional[List[int]] = None			,		lowercase_       :  bool = False						)      ->		List[int]:
       if already_has_special_tokens:
           return super().get_special_tokens_mask(
               token_ids_a=lowercase_			,		token_ids_a=lowercase_			,		already_has_special_tokens=lowercase_						)

       if token_ids_a is None:
           return [1] + ([0] * len(lowercase_						)) + [1]
       return [1] + ([0] * len(lowercase_						)) + [1, 1] + ([0] * len(lowercase_						)) + [1]






   def    __UpperCamelCase  (   self       :  Optional[Any]			,		lowercase_       :  List[int]			,		lowercase_       :  Optional[List[int]] = None						)      ->		List[int]:
       lowercase__				:     Dict					      =       [self.sep_token_id]
       lowercase__				:     Dict					      =       [self.cls_token_id]

       if token_ids_a is None:
           return len(cls + token_ids_a + sep						) * [0]
       return len(cls + token_ids_a + sep + sep + token_ids_a + sep						) * [0]







   def    __UpperCamelCase  (   self       :  Optional[int]			,		lowercase_       :  str			,		lowercase_       :  Optional[Any]=False			,		**lowercase_       :  str						)      ->		Optional[Any]:
       lowercase__				:     List[Any]					      =       kwargs.pop("add_prefix_space"			,		self.add_prefix_space						)
       if (is_split_into_words or add_prefix_space) and (len(lowercase_						) > 0 and not text[0].isspace()):
           lowercase__				:     Optional[Any]					      =       " " + text
       return (text, kwargs)




from typing import Callable

def     lowercase_       (    _lowerCamelCase							: Callable):

    def wrapper(_lowerCamelCase							: str):
        lowercase__				:     Tuple					      =       function_with_docstring.__doc__
        return target_function

    return wrapper



