
"""simple docstring"""
from pathlib import PurePosixPath
from typing import Optional

import fsspec
from fsspec import AbstractFileSystem
from huggingface_hub.hf_api import DatasetInfo

from ..utils.file_utils import get_authentication_headers_for_url
from ..utils.hub import hf_hub_url
class       lowerCAmelCase_		(				_lowercase ):



							'''simple docstring'''





							_snake_case						      =		''
							_snake_case						      =		'hf-legacy'  # "hf://"" is reserved for hffs




							def __init__( self    ,				snake_case_ = None    ,				snake_case_ = None    ,				**snake_case_    ,				)       ->  Optional[Any]:
													super().__init__(self    ,				**__SCREAMING_SNAKE_CASE				)
													__lowerCAmelCase     =  repo_info
													__lowerCAmelCase     =  token
													__lowerCAmelCase     =  None




							def    A__						( self				)       ->  str:



													if self.dir_cache is None:
																			__lowerCAmelCase     =  {}
																			for hf_file in self.repo_info.siblings:
																									# TODO(QL): add sizes
																									__lowerCAmelCase     =  {
																									    """name""": hf_file.rfilename,
																									    """size""": None,
																									    """type""": """file""",
																									}
																									self.dir_cache.update(
																									    {
																									        str(__SCREAMING_SNAKE_CASE				): {"""name""": str(__SCREAMING_SNAKE_CASE				), """size""": None, """type""": """directory"""}
																									        for d in list(PurePosixPath(hf_file.rfilename				).parents				)[:-1]
																									    }				)




							def    A__						( self    ,				snake_case_    ,				snake_case_ = "rb"    ,				**snake_case_    ,				)       ->  Dict:



													if not isinstance(self.repo_info    ,				__SCREAMING_SNAKE_CASE				):
																			raise NotImplementedError(f"""Open is only implemented for dataset repositories, but got {self.repo_info}"""				)
													__lowerCAmelCase     =  hf_hub_url(self.repo_info.id    ,				__SCREAMING_SNAKE_CASE    ,				revision=self.repo_info.sha				)
													return fsspec.open(
													    __SCREAMING_SNAKE_CASE    ,				mode=__SCREAMING_SNAKE_CASE    ,				headers=get_authentication_headers_for_url(__SCREAMING_SNAKE_CASE    ,				use_auth_token=self.token				)    ,				client_kwargs={"""trust_env""": True}    ,				).open()




							def    A__						( self    ,				snake_case_    ,				**snake_case_				)       ->  List[str]:
													self._get_dirs()
													__lowerCAmelCase     =  self._strip_protocol(__SCREAMING_SNAKE_CASE				)
													if path in self.dir_cache:
																			return self.dir_cache[path]
													else:
																			raise FileNotFoundError(__SCREAMING_SNAKE_CASE				)




							def    A__						( self    ,				snake_case_    ,				snake_case_=False    ,				**snake_case_				)       ->  Tuple:
													self._get_dirs()
													__lowerCAmelCase     =  PurePosixPath(path.strip("""/"""				)				)
													__lowerCAmelCase     =  {}
													for p, f in self.dir_cache.items():
																			__lowerCAmelCase     =  PurePosixPath(p.strip("""/"""				)				)
																			__lowerCAmelCase     =  p.parent
																			if root == path:
																									__lowerCAmelCase     =  f
													__lowerCAmelCase     =  list(paths.values()				)
													if detail:
																			return out
													else:
																			return sorted(f["""name"""] for f in out				)


"""simple docstring"""




import operator



def     __magic_name__		(					UpperCamelCase     :		list							,		UpperCamelCase     :		bool = False							,		UpperCamelCase     :		list | None = None     )     ->						list:
    a__		=			operator.lt if reverse else operator.gt
    a__		=			solution or []

    if not arr:
        return solution

    a__		=			[arr.pop(0     )]
    for i, item in enumerate(UpperCamelCase     ):
        if _operator(UpperCamelCase							,		sublist[-1]     ):
            sublist.append(UpperCamelCase     )
            arr.pop(UpperCamelCase     )

    #  merging sublist into solution list
    if not solution:
        solution.extend(UpperCamelCase     )
    else:
        while sublist:
            a__		=			sublist.pop(0     )
            for i, xx in enumerate(UpperCamelCase     ):
                if not _operator(UpperCamelCase							,		UpperCamelCase     ):
                    solution.insert(UpperCamelCase							,		UpperCamelCase     )
                    break
            else:
                solution.append(UpperCamelCase     )

    strand_sort(UpperCamelCase							,		UpperCamelCase							,		UpperCamelCase     )
    return solution


if __name__ == "__main__":
    assert strand_sort([4, 3, 5, 1, 2]) == [1, 2, 3, 4, 5]
    assert strand_sort([4, 3, 5, 1, 2], reverse=True) == [5, 4, 3, 2, 1]


