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

import regex as re

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


if TYPE_CHECKING:
    from transformers.pipelines.conversational import Conversation

lowerCAmelCase__     						=			logging.get_logger(__name__)


lowerCAmelCase__     						=			{
    'vocab_file': 'vocab.json',
    'merges_file': 'merges.txt',
    'tokenizer_config_file': 'tokenizer_config.json',
}

lowerCAmelCase__     						=			{
    'vocab_file': {'facebook/blenderbot-3B': 'https://huggingface.co/facebook/blenderbot-3B/resolve/main/vocab.json'},
    'merges_file': {'facebook/blenderbot-3B': 'https://huggingface.co/facebook/blenderbot-3B/resolve/main/merges.txt'},
    'tokenizer_config_file': {
        'facebook/blenderbot-3B': 'https://huggingface.co/facebook/blenderbot-3B/resolve/main/tokenizer_config.json'
    },
}

lowerCAmelCase__     						=			{'facebook/blenderbot-3B': 128}






@lru_cache()
# Copied from transformers.models.roberta.tokenization_roberta.bytes_to_unicode
def 				__lowerCamelCase		(						):
       lowerCAmelCase__					     = (
           list(range(ord('!'     )     ,  ord('~'     ) + 1     )     ) + list(range(ord('¡'     )     ,  ord('¬'     ) + 1     )     ) + list(range(ord('®'     )     ,  ord('ÿ'     ) + 1     )     )
       )
       lowerCAmelCase__					     = bs[:]
       lowerCAmelCase__					     = 0
       for b in range(2**8     ):
              if b not in bs:
                     bs.append(lowerCAmelCase__     )
                     cs.append(2**8 + n     )
                     n += 1
       lowerCAmelCase__					     = [chr(lowerCAmelCase__     ) for n in cs]
       return dict(zip(lowerCAmelCase__     ,  lowerCAmelCase__     )     )






def 				__lowerCamelCase		(						lowerCAmelCase__     ):
       lowerCAmelCase__					     = set()
       lowerCAmelCase__					     = word[0]
       for char in word[1:]:
              pairs.add((prev_char, char)     )
              lowerCAmelCase__					     = char
       return pairs



class     a_			(						snake_case_						):






 '''simple docstring'''






 UpperCAmelCase_     			= VOCAB_FILES_NAMES
 UpperCAmelCase_     			= PRETRAINED_VOCAB_FILES_MAP
 UpperCAmelCase_     			= PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
 UpperCAmelCase_     			= ['input_ids', 'attention_mask']




 def __init__(      self :  Optional[Any]      ,   lowercase__ :  Optional[int]      ,   lowercase__ :  Tuple      ,   lowercase__ :  List[Any]="replace"      ,   lowercase__ :  Optional[Any]="<s>"      ,   lowercase__ :  Tuple="</s>"      ,   lowercase__ :  int="</s>"      ,   lowercase__ :  Optional[Any]="<s>"      ,   lowercase__ :  Any="<unk>"      ,   lowercase__ :  Union[str, Any]="<pad>"      ,   lowercase__ :  str="<mask>"      ,   lowercase__ :  Union[str, Any]=False      ,   **lowercase__ :  List[Any]      ,   ):







        '''simple docstring'''



        lowerCAmelCase__					     = AddedToken(lowercase__      ,   lstrip=lowercase__      ,   rstrip=lowercase__) if isinstance(lowercase__      ,   lowercase__) else bos_token
        lowerCAmelCase__					     = AddedToken(lowercase__      ,   lstrip=lowercase__      ,   rstrip=lowercase__) if isinstance(lowercase__      ,   lowercase__) else eos_token
        lowerCAmelCase__					     = AddedToken(lowercase__      ,   lstrip=lowercase__      ,   rstrip=lowercase__) if isinstance(lowercase__      ,   lowercase__) else sep_token
        lowerCAmelCase__					     = AddedToken(lowercase__      ,   lstrip=lowercase__      ,   rstrip=lowercase__) if isinstance(lowercase__      ,   lowercase__) else cls_token
        lowerCAmelCase__					     = AddedToken(lowercase__      ,   lstrip=lowercase__      ,   rstrip=lowercase__) if isinstance(lowercase__      ,   lowercase__) else unk_token
        lowerCAmelCase__					     = 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
        lowerCAmelCase__					     = 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:
               lowerCAmelCase__					     = json.load(lowercase__)
        lowerCAmelCase__					     = {v: k for k, v in self.encoder.items()}
        lowerCAmelCase__					     = errors  # how to handle errors in decoding
        lowerCAmelCase__					     = bytes_to_unicode()
        lowerCAmelCase__					     = {v: k for k, v in self.byte_encoder.items()}
        with open(lowercase__      ,   encoding='utf-8') as merges_handle:
               lowerCAmelCase__					     = merges_handle.read().split('\n')[1:-1]
        lowerCAmelCase__					     = [tuple(merge.split()) for merge in bpe_merges]
        lowerCAmelCase__					     = dict(zip(lowercase__      ,   range(len(lowercase__))))
        lowerCAmelCase__					     = {}
        lowerCAmelCase__					     = add_prefix_space

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




 @property
 # Copied from transformers.models.roberta.tokenization_roberta.RobertaTokenizer.vocab_size with Roberta->Blenderbot, RoBERTa->Blenderbot
 def 		__snake_case						(      self :  Dict):







        '''simple docstring'''



        return len(self.encoder)




 def 		__snake_case						(      self :  Optional[Any]):







        '''simple docstring'''



        return dict(self.encoder      ,   **self.added_tokens_encoder)




 def 		__snake_case						(      self :  int      ,   lowercase__ :  List[Any]):







        '''simple docstring'''



        if token in self.cache:
               return self.cache[token]
        lowerCAmelCase__					     = tuple(lowercase__)
        lowerCAmelCase__					     = get_pairs(lowercase__)

        if not pairs:
               return token

        while True:
               lowerCAmelCase__					     = min(lowercase__      ,   key=lambda lowercase__: self.bpe_ranks.get(lowercase__      ,   float('inf')))
               if bigram not in self.bpe_ranks:
                      break
               lowerCAmelCase__					     = bigram
               lowerCAmelCase__					     = []
               lowerCAmelCase__					     = 0
               while i < len(lowercase__):
                      try:
                             lowerCAmelCase__					     = word.index(lowercase__      ,   lowercase__)
                      except ValueError:
                             new_word.extend(word[i:])
                             break
                      else:
                             new_word.extend(word[i:j])
                             lowerCAmelCase__					     = 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
               lowerCAmelCase__					     = tuple(lowercase__)
               lowerCAmelCase__					     = new_word
               if len(lowercase__) == 1:
                      break
               else:
                      lowerCAmelCase__					     = get_pairs(lowercase__)
        lowerCAmelCase__					     = ' '.join(lowercase__)
        lowerCAmelCase__					     = word
        return word




 def 		__snake_case						(      self :  Dict      ,   lowercase__ :  List[Any]):







        '''simple docstring'''



        lowerCAmelCase__					     = []
        for token in re.findall(self.pat      ,   lowercase__):
               lowerCAmelCase__					     = ''.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 		__snake_case						(      self :  List[Any]      ,   lowercase__ :  Dict):







        '''simple docstring'''



        return self.encoder.get(lowercase__      ,   self.encoder.get(self.unk_token))




 def 		__snake_case						(      self :  str      ,   lowercase__ :  Tuple):







        '''simple docstring'''



        return self.decoder.get(lowercase__)




 def 		__snake_case						(      self :  List[str]      ,   lowercase__ :  Tuple):







        '''simple docstring'''



        lowerCAmelCase__					     = ''.join(lowercase__)
        lowerCAmelCase__					     = bytearray([self.byte_decoder[c] for c in text]).decode('utf-8'      ,   errors=self.errors)
        return text




 def 		__snake_case						(      self :  str      ,   lowercase__ :  str      ,   lowercase__ :  Optional[str] = None):







        '''simple docstring'''



        if not os.path.isdir(lowercase__):
               logger.error(F"""Vocabulary path ({save_directory}) should be a directory""")
               return
        lowerCAmelCase__					     = os.path.join(
            lowercase__      ,   (filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['vocab_file'])
        lowerCAmelCase__					     = 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')

        lowerCAmelCase__					     = 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!')
                             lowerCAmelCase__					     = token_index
                      writer.write(' '.join(lowercase__) + '\n')
                      index += 1

        return vocab_file, merge_file




 def 		__snake_case						(      self :  int      ,   lowercase__ :  List[int]      ,   lowercase__ :  Optional[List[int]] = None      ,   lowercase__ :  bool = False):







        '''simple docstring'''



        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 		__snake_case						(      self :  List[str]      ,   lowercase__ :  List[int]      ,   lowercase__ :  Optional[List[int]] = None):







        '''simple docstring'''



        lowerCAmelCase__					     = [self.sep_token_id]
        lowerCAmelCase__					     = [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 		__snake_case						(      self :  Union[str, Any]      ,   lowercase__ :  str      ,   lowercase__ :  str=False      ,   **lowercase__ :  str):







        '''simple docstring'''



        lowerCAmelCase__					     = 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()):
               lowerCAmelCase__					     = ' ' + text
        return (text, kwargs)




 def 		__snake_case						(      self :  Union[str, Any]      ,   lowercase__ :  List[int]      ,   lowercase__ :  Optional[List[int]] = None):







        '''simple docstring'''



        return token_ids_a + [self.eos_token_id]




 def 		__snake_case						(      self :  Union[str, Any]      ,   lowercase__ :  "Conversation"):







        '''simple docstring'''



        lowerCAmelCase__					     = []
        for is_user, text in conversation.iter_texts():
               if is_user:
                      # We need to space prefix as it's being done within blenderbot
                      inputs.append(' ' + text)
               else:
                      # Generated responses should contain them already.
                      inputs.append(lowercase__)

        lowerCAmelCase__					     = '  '.join(lowercase__)
        lowerCAmelCase__					     = self.encode(lowercase__)
        if len(lowercase__) > self.model_max_length:
               lowerCAmelCase__					     = input_ids[-self.model_max_length :]
               logger.warning(F"""Trimmed input from conversation as it was longer than {self.model_max_length} tokens.""")
        return input_ids

from __future__ import annotations

lowerCAmelCase__     						=			tuple[int, int, int]
lowerCAmelCase__     						=			tuple[str, str, str]


# used alphabet --------------------------
# from string.ascii_uppercase
lowerCAmelCase__     						=			'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

# -------------------------- default selection --------------------------
# rotors --------------------------
lowerCAmelCase__     						=			'EGZWVONAHDCLFQMSIPJBYUKXTR'
lowerCAmelCase__     						=			'FOBHMDKEXQNRAULPGSJVTYICZW'
lowerCAmelCase__     						=			'ZJXESIUQLHAVRMDOYGTNFWPBKC'
# reflector --------------------------
lowerCAmelCase__     						=			{
    'A': 'N',
    'N': 'A',
    'B': 'O',
    'O': 'B',
    'C': 'P',
    'P': 'C',
    'D': 'Q',
    'Q': 'D',
    'E': 'R',
    'R': 'E',
    'F': 'S',
    'S': 'F',
    'G': 'T',
    'T': 'G',
    'H': 'U',
    'U': 'H',
    'I': 'V',
    'V': 'I',
    'J': 'W',
    'W': 'J',
    'K': 'X',
    'X': 'K',
    'L': 'Y',
    'Y': 'L',
    'M': 'Z',
    'Z': 'M',
}

# -------------------------- extra rotors --------------------------
lowerCAmelCase__     						=			'RMDJXFUWGISLHVTCQNKYPBEZOA'
lowerCAmelCase__     						=			'SGLCPQWZHKXAREONTFBVIYJUDM'
lowerCAmelCase__     						=			'HVSICLTYKQUBXDWAJZOMFGPREN'
lowerCAmelCase__     						=			'RZWQHFMVDBKICJLNTUXAGYPSOE'
lowerCAmelCase__     						=			'LFKIJODBEGAMQPXVUHYSTCZRWN'
lowerCAmelCase__     						=			'KOAEGVDHXPQZMLFTYWJNBRCIUS'






def 				__lowerCamelCase		(						lowerCAmelCase__     ,  lowerCAmelCase__     ,  lowerCAmelCase__     ):
       # Checks if there are 3 unique rotors

       if (unique_rotsel := len(set(lowerCAmelCase__     )     )) < 3:
              lowerCAmelCase__					     = F"""Please use 3 unique rotors (not {unique_rotsel})"""
              raise Exception(lowerCAmelCase__     )

       # Checks if rotor positions are valid
       lowerCAmelCase__     , lowerCAmelCase__     , lowerCAmelCase__					     = rotpos
       if not 0 < rotorposa <= len(lowerCAmelCase__     ):
              lowerCAmelCase__					     = F"""First rotor position is not within range of 1..26 ({rotorposa}"""
              raise ValueError(lowerCAmelCase__     )
       if not 0 < rotorposa <= len(lowerCAmelCase__     ):
              lowerCAmelCase__					     = F"""Second rotor position is not within range of 1..26 ({rotorposa})"""
              raise ValueError(lowerCAmelCase__     )
       if not 0 < rotorposa <= len(lowerCAmelCase__     ):
              lowerCAmelCase__					     = F"""Third rotor position is not within range of 1..26 ({rotorposa})"""
              raise ValueError(lowerCAmelCase__     )

       # Validates string and returns dict
       lowerCAmelCase__					     = _plugboard(lowerCAmelCase__     )

       return rotpos, rotsel, pbdict






def 				__lowerCamelCase		(						lowerCAmelCase__     ):

       # tests the input string if it
       # a) is type string
       # b) has even length (so pairs can be made)
       if not isinstance(lowerCAmelCase__     ,  lowerCAmelCase__     ):
              lowerCAmelCase__					     = F"""Plugboard setting isn't type string ({type(lowerCAmelCase__     )})"""
              raise TypeError(lowerCAmelCase__     )
       elif len(lowerCAmelCase__     ) % 2 != 0:
              lowerCAmelCase__					     = F"""Odd number of symbols ({len(lowerCAmelCase__     )})"""
              raise Exception(lowerCAmelCase__     )
       elif pbstring == "":
              return {}

       pbstring.replace(' '     ,  ''     )

       # Checks if all characters are unique
       lowerCAmelCase__					     = set()
       for i in pbstring:
              if i not in abc:
                     lowerCAmelCase__					     = F"""'{i}' not in list of symbols"""
                     raise Exception(lowerCAmelCase__     )
              elif i in tmppbl:
                     lowerCAmelCase__					     = F"""Duplicate symbol ({i})"""
                     raise Exception(lowerCAmelCase__     )
              else:
                     tmppbl.add(lowerCAmelCase__     )
       del tmppbl

       # Created the dictionary
       lowerCAmelCase__					     = {}
       for j in range(0     ,  len(lowerCAmelCase__     ) - 1     ,  2     ):
              lowerCAmelCase__					     = pbstring[j + 1]
              lowerCAmelCase__					     = pbstring[j]

       return pb






def 				__lowerCamelCase		(						lowerCAmelCase__     ,  lowerCAmelCase__     ,  lowerCAmelCase__ = (rotora, rotora, rotora)     ,  lowerCAmelCase__ = ""     ,  ):
       lowerCAmelCase__					     = text.upper()
       lowerCAmelCase__     , lowerCAmelCase__     , lowerCAmelCase__					     = _validator(
           lowerCAmelCase__     ,  lowerCAmelCase__     ,  plugb.upper()     )

       lowerCAmelCase__     , lowerCAmelCase__     , lowerCAmelCase__					     = rotor_position
       lowerCAmelCase__     , lowerCAmelCase__     , lowerCAmelCase__					     = rotor_selection
       rotorposa -= 1
       rotorposa -= 1
       rotorposa -= 1

       lowerCAmelCase__					     = []

       # encryption/decryption process --------------------------
       for symbol in text:
              if symbol in abc:
                     # 1st plugboard --------------------------
                     if symbol in plugboard:
                            lowerCAmelCase__					     = plugboard[symbol]

                     # rotor ra --------------------------
                     lowerCAmelCase__					     = abc.index(lowerCAmelCase__     ) + rotorposa
                     lowerCAmelCase__					     = rotora[index % len(lowerCAmelCase__     )]

                     # rotor rb --------------------------
                     lowerCAmelCase__					     = abc.index(lowerCAmelCase__     ) + rotorposa
                     lowerCAmelCase__					     = rotora[index % len(lowerCAmelCase__     )]

                     # rotor rc --------------------------
                     lowerCAmelCase__					     = abc.index(lowerCAmelCase__     ) + rotorposa
                     lowerCAmelCase__					     = rotora[index % len(lowerCAmelCase__     )]

                     # reflector --------------------------
                     # this is the reason you don't need another machine to decipher

                     lowerCAmelCase__					     = reflector[symbol]

                     # 2nd rotors
                     lowerCAmelCase__					     = abc[rotora.index(lowerCAmelCase__     ) - rotorposa]
                     lowerCAmelCase__					     = abc[rotora.index(lowerCAmelCase__     ) - rotorposa]
                     lowerCAmelCase__					     = abc[rotora.index(lowerCAmelCase__     ) - rotorposa]

                     # 2nd plugboard
                     if symbol in plugboard:
                            lowerCAmelCase__					     = plugboard[symbol]

                     # moves/resets rotor positions
                     rotorposa += 1
                     if rotorposa >= len(lowerCAmelCase__     ):
                            lowerCAmelCase__					     = 0
                            rotorposa += 1
                     if rotorposa >= len(lowerCAmelCase__     ):
                            lowerCAmelCase__					     = 0
                            rotorposa += 1
                     if rotorposa >= len(lowerCAmelCase__     ):
                            lowerCAmelCase__					     = 0

        # else:
        #    pass
        #    Error could be also raised
        #    raise ValueError(
        #       'Invalid symbol('+repr(symbol)+')')
              result.append(lowerCAmelCase__     )

       return "".join(lowerCAmelCase__     )


if __name__ == "__main__":
    lowerCAmelCase__     						=			'This is my Python script that emulates the Enigma machine from WWII.'
    lowerCAmelCase__     						=			(1, 1, 1)
    lowerCAmelCase__     						=			'pictures'
    lowerCAmelCase__     						=			(rotora, rotora, rotora)
    lowerCAmelCase__     						=			enigma(message, rotor_pos, rotor_sel, pb)

    print('Encrypted message:', en)
    print('Decrypted message:', enigma(en, rotor_pos, rotor_sel, pb))
