

import os
from shutil import copyfile
from typing import Any, Dict, List, Optional, Tuple

import sentencepiece as spm

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


__A			:					Optional[Any]						=			logging.get_logger(__name__)

__A			:					Union[str, Any]						=			{'vocab_file': 'sentencepiece.bpe.model'}

__A			:					List[Any]						=			{
    'vocab_file': {
        'camembert-base': 'https://huggingface.co/camembert-base/resolve/main/sentencepiece.bpe.model',
    }
}

__A			:					List[str]						=			{
    'camembert-base': 5_1_2,
}

__A			:					Tuple						=			'▁'





class 			_SCREAMING_SNAKE_CASE (   __snake_case		):







   '''simple docstring'''




   lowerCamelCase__				=      VOCAB_FILES_NAMES
   lowerCamelCase__				=      PRETRAINED_VOCAB_FILES_MAP
   lowerCamelCase__				=      PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
   lowerCamelCase__				=      ["input_ids", "attention_mask"]





   def __init__(       self					:			List[Any]     , __lowerCamelCase					:			Union[str, Any]     , __lowerCamelCase					:			Tuple="<s>"     , __lowerCamelCase					:			List[Any]="</s>"     , __lowerCamelCase					:			int="</s>"     , __lowerCamelCase					:			Any="<s>"     , __lowerCamelCase					:			Dict="<unk>"     , __lowerCamelCase					:			Any="<pad>"     , __lowerCamelCase					:			Optional[Any]="<mask>"     , __lowerCamelCase					:			List[str]=["<s>NOTUSED", "</s>NOTUSED"]     , __lowerCamelCase					:			Optional[Dict[str, Any]] = None     , **__lowerCamelCase					:			Any     , ):
       # Mask token behave like a normal word, i.e. include the space before it
       SCREAMING_SNAKE_CASE										=   AddedToken(__lowerCamelCase     , lstrip=__lowerCamelCase     , rstrip=__lowerCamelCase			) if isinstance(__lowerCamelCase     , __lowerCamelCase			) else mask_token

       SCREAMING_SNAKE_CASE										=   {} if sp_model_kwargs is None else sp_model_kwargs

       super().__init__(
           bos_token=__lowerCamelCase     , eos_token=__lowerCamelCase     , unk_token=__lowerCamelCase     , sep_token=__lowerCamelCase     , cls_token=__lowerCamelCase     , pad_token=__lowerCamelCase     , mask_token=__lowerCamelCase     , additional_special_tokens=__lowerCamelCase     , sp_model_kwargs=self.sp_model_kwargs     , **__lowerCamelCase     , )
       SCREAMING_SNAKE_CASE										=   spm.SentencePieceProcessor(**self.sp_model_kwargs			)
       self.sp_model.Load(str(__lowerCamelCase			)			)
       SCREAMING_SNAKE_CASE										=   vocab_file
       # HACK: These tokens were added by fairseq but don't seem to be actually used when duplicated in the actual
       # sentencepiece vocabulary (this is the case for <s> and </s>
       SCREAMING_SNAKE_CASE										=   {"<s>NOTUSED": 0, "<pad>": 1, "</s>NOTUSED": 2, "<unk>": 3}
       SCREAMING_SNAKE_CASE										=   len(self.fairseq_tokens_to_ids			)
       SCREAMING_SNAKE_CASE										=   len(self.sp_model			) + len(self.fairseq_tokens_to_ids			)
       SCREAMING_SNAKE_CASE										=   {v: k for k, v in self.fairseq_tokens_to_ids.items()}





   def      _snake_case		(       self					:			Any     , __lowerCamelCase					:			List[int]     , __lowerCamelCase					:			Optional[List[int]] = None			):

       if token_ids_a is None:
           return [self.cls_token_id] + token_ids_a + [self.sep_token_id]
       SCREAMING_SNAKE_CASE										=   [self.cls_token_id]
       SCREAMING_SNAKE_CASE										=   [self.sep_token_id]
       return cls + token_ids_a + sep + sep + token_ids_a + sep





   def      _snake_case		(       self					:			Optional[Any]     , __lowerCamelCase					:			List[int]     , __lowerCamelCase					:			Optional[List[int]] = None     , __lowerCamelCase					:			bool = False			):
       if already_has_special_tokens:
           return super().get_special_tokens_mask(
               token_ids_a=__lowerCamelCase     , token_ids_a=__lowerCamelCase     , already_has_special_tokens=__lowerCamelCase			)

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





   def      _snake_case		(       self					:			int     , __lowerCamelCase					:			List[int]     , __lowerCamelCase					:			Optional[List[int]] = None			):
       SCREAMING_SNAKE_CASE										=   [self.sep_token_id]
       SCREAMING_SNAKE_CASE										=   [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]





   @property
   def      _snake_case		(       self					:			Dict			):
       return len(self.fairseq_tokens_to_ids			) + len(self.sp_model			)





   def      _snake_case		(       self					:			Dict			):
       SCREAMING_SNAKE_CASE										=   {self.convert_ids_to_tokens(__lowerCamelCase			): i for i in range(self.vocab_size			)}
       vocab.update(self.added_tokens_encoder			)
       return vocab





   def      _snake_case		(       self					:			Optional[int]     , __lowerCamelCase					:			str			):
       return self.sp_model.encode(__lowerCamelCase     , out_type=__lowerCamelCase			)





   def      _snake_case		(       self					:			str     , __lowerCamelCase					:			Tuple			):
       if token in self.fairseq_tokens_to_ids:
           return self.fairseq_tokens_to_ids[token]
       elif self.sp_model.PieceToId(__lowerCamelCase			) == 0:
           # Convert sentence piece unk token to fairseq unk token index
           return self.unk_token_id
       return self.fairseq_offset + self.sp_model.PieceToId(__lowerCamelCase			)





   def      _snake_case		(       self					:			List[Any]     , __lowerCamelCase					:			str			):
       if index in self.fairseq_ids_to_tokens:
           return self.fairseq_ids_to_tokens[index]
       return self.sp_model.IdToPiece(index - self.fairseq_offset			)





   def      _snake_case		(       self					:			Union[str, Any]     , __lowerCamelCase					:			Dict			):
       SCREAMING_SNAKE_CASE										=   []
       SCREAMING_SNAKE_CASE										=   ""
       SCREAMING_SNAKE_CASE										=   False
       for token in tokens:
           # make sure that special tokens are not decoded using sentencepiece model
           if token in self.all_special_tokens:
               if not prev_is_special:
                   out_string += " "
               out_string += self.sp_model.decode(__lowerCamelCase			) + token
               SCREAMING_SNAKE_CASE										=   True
               SCREAMING_SNAKE_CASE										=   []
           else:
               current_sub_tokens.append(__lowerCamelCase			)
               SCREAMING_SNAKE_CASE										=   False
       out_string += self.sp_model.decode(__lowerCamelCase			)
       return out_string.strip()





   def __getstate__(       self					:			Any			):
       SCREAMING_SNAKE_CASE										=   self.__dict__.copy()
       SCREAMING_SNAKE_CASE										=   None
       return state





   def __setstate__(       self					:			List[Any]     , __lowerCamelCase					:			int			):
       SCREAMING_SNAKE_CASE										=   d

       # for backward compatibility
       if not hasattr(self     , "sp_model_kwargs"			):
           SCREAMING_SNAKE_CASE										=   {}

       SCREAMING_SNAKE_CASE										=   spm.SentencePieceProcessor(**self.sp_model_kwargs			)
       self.sp_model.Load(self.vocab_file			)





   def      _snake_case		(       self					:			Optional[int]     , __lowerCamelCase					:			str     , __lowerCamelCase					:			Optional[str] = None			):
       if not os.path.isdir(__lowerCamelCase			):
           logger.error(f"Vocabulary path ({save_directory}) should be a directory"			)
           return
       SCREAMING_SNAKE_CASE										=   os.path.join(
           __lowerCamelCase     , (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]			)

       if os.path.abspath(self.vocab_file			) != os.path.abspath(__lowerCamelCase			) and os.path.isfile(self.vocab_file			):
           copyfile(self.vocab_file     , __lowerCamelCase			)
       elif not os.path.isfile(self.vocab_file			):
           with open(__lowerCamelCase     , "wb"			) as fi:
               SCREAMING_SNAKE_CASE										=   self.sp_model.serialized_model_proto()
               fi.write(__lowerCamelCase			)

       return (out_vocab_file,)


from __future__ import annotations

__A			:					str						=			list[tuple[int, int]]

__A			:					Optional[int]						=			[
    [0, 0, 0, 0, 0, 0, 0],
    [0, 1, 0, 0, 0, 0, 0],  # 0 are free path whereas 1's are obstacles
    [0, 0, 0, 0, 0, 0, 0],
    [0, 0, 1, 0, 0, 0, 0],
    [1, 0, 1, 0, 0, 0, 0],
    [0, 0, 0, 0, 0, 0, 0],
    [0, 0, 0, 0, 1, 0, 0],
]

__A			:					List[str]						=			([-1, 0], [0, -1], [1, 0], [0, 1])  # up, left, down, right





class 			_SCREAMING_SNAKE_CASE :







   '''simple docstring'''




   def __init__(       self					:			str     , __lowerCamelCase					:			int     , __lowerCamelCase					:			int     , __lowerCamelCase					:			int     , __lowerCamelCase					:			int     , __lowerCamelCase					:			float     , __lowerCamelCase					:			Node | None     , ):
       SCREAMING_SNAKE_CASE										=   pos_x
       SCREAMING_SNAKE_CASE										=   pos_y
       SCREAMING_SNAKE_CASE										=   (pos_y, pos_x)
       SCREAMING_SNAKE_CASE										=   goal_x
       SCREAMING_SNAKE_CASE										=   goal_y
       SCREAMING_SNAKE_CASE										=   g_cost
       SCREAMING_SNAKE_CASE										=   parent
       SCREAMING_SNAKE_CASE										=   self.calculate_heuristic()





   def      _snake_case		(       self					:			Union[str, Any]			):
       SCREAMING_SNAKE_CASE										=   abs(self.pos_x - self.goal_x			)
       SCREAMING_SNAKE_CASE										=   abs(self.pos_y - self.goal_y			)
       return dx + dy





   def __lt__(       self					:			Union[str, Any]     , __lowerCamelCase					:			List[Any]			):
       return self.f_cost < other.f_cost





class 			_SCREAMING_SNAKE_CASE :







   '''simple docstring'''




   def __init__(       self					:			Optional[int]     , __lowerCamelCase					:			tuple[int, int]     , __lowerCamelCase					:			tuple[int, int]			):
       SCREAMING_SNAKE_CASE										=   Node(start[1]     , start[0]     , goal[1]     , goal[0]     , 0     , __lowerCamelCase			)
       SCREAMING_SNAKE_CASE										=   Node(goal[1]     , goal[0]     , goal[1]     , goal[0]     , 99999     , __lowerCamelCase			)

       SCREAMING_SNAKE_CASE										=   [self.start]
       SCREAMING_SNAKE_CASE										=   []

       SCREAMING_SNAKE_CASE										=   False





   def      _snake_case		(       self					:			Optional[Any]			):
       while self.open_nodes:
           # Open Nodes are sorted using __lt__
           self.open_nodes.sort()
           SCREAMING_SNAKE_CASE										=   self.open_nodes.pop(0			)

           if current_node.pos == self.target.pos:
               SCREAMING_SNAKE_CASE										=   True
               return self.retrace_path(__lowerCamelCase			)

           self.closed_nodes.append(__lowerCamelCase			)
           SCREAMING_SNAKE_CASE										=   self.get_successors(__lowerCamelCase			)

           for child_node in successors:
               if child_node in self.closed_nodes:
                   continue

               if child_node not in self.open_nodes:
                   self.open_nodes.append(__lowerCamelCase			)
               else:
                   # retrieve the best current path
                   SCREAMING_SNAKE_CASE										=   self.open_nodes.pop(self.open_nodes.index(__lowerCamelCase			)			)

                   if child_node.g_cost < better_node.g_cost:
                       self.open_nodes.append(__lowerCamelCase			)
                   else:
                       self.open_nodes.append(__lowerCamelCase			)

       if not self.reached:
           return [self.start.pos]
       return None





   def      _snake_case		(       self					:			List[Any]     , __lowerCamelCase					:			Node			):
       SCREAMING_SNAKE_CASE										=   []
       for action in delta:
           SCREAMING_SNAKE_CASE										=   parent.pos_x + action[1]
           SCREAMING_SNAKE_CASE										=   parent.pos_y + action[0]

           if not (0 <= pos_x <= len(grid[0]			) - 1 and 0 <= pos_y <= len(__lowerCamelCase			) - 1):
               continue

           if grid[pos_y][pos_x] != 0:
               continue

           successors.append(
               Node(
                   __lowerCamelCase     , __lowerCamelCase     , self.target.pos_y     , self.target.pos_x     , parent.g_cost + 1     , __lowerCamelCase     , )			)
       return successors





   def      _snake_case		(       self					:			str     , __lowerCamelCase					:			Node | None			):
       SCREAMING_SNAKE_CASE										=   node
       SCREAMING_SNAKE_CASE										=   []
       while current_node is not None:
           path.append((current_node.pos_y, current_node.pos_x)			)
           SCREAMING_SNAKE_CASE										=   current_node.parent
       path.reverse()
       return path


if __name__ == "__main__":
    __A			:					Optional[Any]						=			(0, 0)
    __A			:					Optional[int]						=			(len(grid) - 1, len(grid[0]) - 1)
    for elem in grid:
        print(elem)

    print('------')

    __A			:					List[str]						=			GreedyBestFirst(init, goal)
    __A			:					Tuple						=			greedy_bf.search()
    if path:
        for pos_x, pos_y in path:
            __A			:					Optional[Any]						=			2

        for elem in grid:
            print(elem)