





import bza
import gzip
import lzma
import os
import shutil
import struct
import tarfile
import warnings
import zipfile
from abc import ABC, abstractmethod
from pathlib import Path
from typing import Dict, List, Optional, Type, Union

from .. import config
from .filelock import FileLock
from .logging import get_logger


lowercase    : int    	=  get_logger(__name__)

class  __A:

					def __init__(      self,       A = None      ):





												"""simple docstring"""

												_UpperCamelCase              =						(
												    os.path.join(lowerCamelCase__,       config.EXTRACTED_DATASETS_DIR      ) if cache_dir else config.EXTRACTED_DATASETS_PATH
												)
												_UpperCamelCase              =						Extractor

					def 	_UpperCamelCase     (      self,       A      ):





												"""simple docstring"""

												from .file_utils import hash_url_to_filename

												# Path where we extract compressed archives
												# We extract in the cache dir, and get the extracted path name by hashing the original path"
												_UpperCamelCase              =						os.path.abspath(lowerCamelCase__      )
												return os.path.join(self.extract_dir,       hash_url_to_filename(lowerCamelCase__      )      )

					def 	_UpperCamelCase     (      self,       A,       A      ):





												"""simple docstring"""

												return force_extract or (
												    not os.path.isfile(lowerCamelCase__      ) and not (os.path.isdir(lowerCamelCase__      ) and os.listdir(lowerCamelCase__      ))
												)



					def 	_UpperCamelCase     (      self,       A,       A = False      ):





												"""simple docstring"""

												_UpperCamelCase              =						self.extractor.infer_extractor_format(lowerCamelCase__      )
												if not extractor_format:
																			return input_path
												_UpperCamelCase              =						self._get_output_path(lowerCamelCase__      )
												if self._do_extract(lowerCamelCase__,       lowerCamelCase__      ):
																			self.extractor.extract(lowerCamelCase__,       lowerCamelCase__,       lowerCamelCase__      )
												return output_path






class  __A(						UpperCAmelCase__ ):

					@classmethod
					@abstractmethod
					def 	_UpperCamelCase     (      cls,       A,       **A      ):





												"""simple docstring"""

												...



					@staticmethod
					@abstractmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												...






class  __A(						UpperCAmelCase__						,			UpperCAmelCase__ ):
					__A	  =       []

					@staticmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												with open(lowerCamelCase__,       '''rb'''      ) as f:
																			return f.read(lowerCamelCase__      )



					@classmethod
					def 	_UpperCamelCase     (      cls,       A,       A = b""      ):





												"""simple docstring"""

												if not magic_number:
																			_UpperCamelCase              =						max(len(lowerCamelCase__      ) for cls_magic_number in cls.magic_numbers      )
																			try:
																										_UpperCamelCase              =						cls.read_magic_number(lowerCamelCase__,       lowerCamelCase__      )
																			except OSError:
																										return False
												return any(magic_number.startswith(lowerCamelCase__      ) for cls_magic_number in cls.magic_numbers      )






class  __A(						UpperCAmelCase__ ):

					@classmethod
					def 	_UpperCamelCase     (      cls,       A,       **A      ):





												"""simple docstring"""

												return tarfile.is_tarfile(lowerCamelCase__      )

					@staticmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												def resolved(A      ) -> str:
																			return os.path.realpath(os.path.abspath(lowerCamelCase__      )      )

												def badpath(A,       A      ) -> bool:
																			# joinpath will ignore base if path is absolute
																			return not resolved(os.path.join(lowerCamelCase__,       lowerCamelCase__      )      ).startswith(lowerCamelCase__      )

												def badlink(A,       A      ) -> bool:
																			# Links are interpreted relative to the directory containing the link
																			_UpperCamelCase              =						resolved(os.path.join(lowerCamelCase__,       os.path.dirname(info.name      )      )      )
																			return badpath(info.linkname,       base=lowerCamelCase__      )

												_UpperCamelCase              =						resolved(lowerCamelCase__      )

												for finfo in members:
																			if badpath(finfo.name,       lowerCamelCase__      ):
																										logger.error(F'''Extraction of {finfo.name} is blocked (illegal path)'''      )
																			elif finfo.issym() and badlink(lowerCamelCase__,       lowerCamelCase__      ):
																										logger.error(F'''Extraction of {finfo.name} is blocked: Symlink to {finfo.linkname}'''      )
																			elif finfo.islnk() and badlink(lowerCamelCase__,       lowerCamelCase__      ):
																										logger.error(F'''Extraction of {finfo.name} is blocked: Hard link to {finfo.linkname}'''      )
																			else:
																										yield finfo



					@staticmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												os.makedirs(lowerCamelCase__,       exist_ok=lowerCamelCase__      )
												_UpperCamelCase              =						tarfile.open(lowerCamelCase__      )
												tar_file.extractall(lowerCamelCase__,       members=TarExtractor.safemembers(lowerCamelCase__,       lowerCamelCase__      )      )
												tar_file.close()






class  __A(						UpperCAmelCase__ ):
					__A	  =       [b"\x1F\x8B"]

					@staticmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												with gzip.open(lowerCamelCase__,       '''rb'''      ) as gzip_file:
																			with open(lowerCamelCase__,       '''wb'''      ) as extracted_file:
																										shutil.copyfileobj(lowerCamelCase__,       lowerCamelCase__      )






class  __A(						UpperCAmelCase__ ):
					__A	  =       [
					    b"PK\x03\x04",
					    b"PK\x05\x06",  # empty archive
					    b"PK\x07\x08",  # spanned archive
					]

					@classmethod
					def 	_UpperCamelCase     (      cls,       A,       A = b""      ):





												"""simple docstring"""

												if super().is_extractable(lowerCamelCase__,       magic_number=lowerCamelCase__      ):
																			return True
												try:
																			# Alternative version of zipfile.is_zipfile that has less false positives, but misses executable zip archives.
																			# From: https://github.com/python/cpython/pull/5053
																			from zipfile import (
																			    _CD_SIGNATURE,
																			    _ECD_DISK_NUMBER,
																			    _ECD_DISK_START,
																			    _ECD_ENTRIES_TOTAL,
																			    _ECD_OFFSET,
																			    _ECD_SIZE,
																			    _EndRecData,
																			    sizeCentralDir,
																			    stringCentralDir,
																			    structCentralDir,
																			)

																			with open(lowerCamelCase__,       '''rb'''      ) as fp:
																										_UpperCamelCase              =						_EndRecData(lowerCamelCase__      )
																										if endrec:
																																	if endrec[_ECD_ENTRIES_TOTAL] == 0 and endrec[_ECD_SIZE] == 0 and endrec[_ECD_OFFSET] == 0:
																																								return True  # Empty zipfiles are still zipfiles
																																	elif endrec[_ECD_DISK_NUMBER] == endrec[_ECD_DISK_START]:
																																								fp.seek(endrec[_ECD_OFFSET]      )  # Central directory is on the same disk
																																								if fp.tell() == endrec[_ECD_OFFSET] and endrec[_ECD_SIZE] >= sizeCentralDir:
																																															_UpperCamelCase              =						fp.read(lowerCamelCase__      )  # CD is where we expect it to be
																																															if len(lowerCamelCase__      ) == sizeCentralDir:
																																																						_UpperCamelCase              =						struct.unpack(lowerCamelCase__,       lowerCamelCase__      )  # CD is the right size
																																																						if centdir[_CD_SIGNATURE] == stringCentralDir:
																																																													return True  # First central directory entry  has correct magic number
																			return False
												except Exception:  # catch all errors in case future python versions change the zipfile internals
																			return False



					@staticmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												os.makedirs(lowerCamelCase__,       exist_ok=lowerCamelCase__      )
												with zipfile.ZipFile(lowerCamelCase__,       '''r'''      ) as zip_file:
																			zip_file.extractall(lowerCamelCase__      )
																			zip_file.close()






class  __A(						UpperCAmelCase__ ):
					__A	  =       [b"\xFD\x37\x7A\x58\x5A\x00"]

					@staticmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												with lzma.open(lowerCamelCase__      ) as compressed_file:
																			with open(lowerCamelCase__,       '''wb'''      ) as extracted_file:
																										shutil.copyfileobj(lowerCamelCase__,       lowerCamelCase__      )






class  __A(						UpperCAmelCase__ ):
					__A	  =       [b"Rar!\x1a\x07\x00", b"Rar!\x1a\x07\x01\x00"]  # RAR_ID  # RAR5_ID

					@staticmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												if not config.RARFILE_AVAILABLE:
																			raise ImportError('''Please pip install rarfile'''      )
												import rarfile

												os.makedirs(lowerCamelCase__,       exist_ok=lowerCamelCase__      )
												_UpperCamelCase              =						rarfile.RarFile(lowerCamelCase__      )
												rf.extractall(lowerCamelCase__      )
												rf.close()






class  __A(						UpperCAmelCase__ ):
					__A	  =       [b"\x28\xb5\x2F\xFD"]

					@staticmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												if not config.ZSTANDARD_AVAILABLE:
																			raise ImportError('''Please pip install zstandard'''      )
												import zstandard as zstd

												_UpperCamelCase              =						zstd.ZstdDecompressor()
												with open(lowerCamelCase__,       '''rb'''      ) as ifh, open(lowerCamelCase__,       '''wb'''      ) as ofh:
																			dctx.copy_stream(lowerCamelCase__,       lowerCamelCase__      )






class  __A(						UpperCAmelCase__ ):
					__A	  =       [b"\x42\x5A\x68"]

					@staticmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												with bza.open(lowerCamelCase__,       '''rb'''      ) as compressed_file:
																			with open(lowerCamelCase__,       '''wb'''      ) as extracted_file:
																										shutil.copyfileobj(lowerCamelCase__,       lowerCamelCase__      )






class  __A(						UpperCAmelCase__ ):
					__A	  =       [b"\x37\x7A\xBC\xAF\x27\x1C"]

					@staticmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												if not config.PY7ZR_AVAILABLE:
																			raise ImportError('''Please pip install py7zr'''      )
												import pyazr

												os.makedirs(lowerCamelCase__,       exist_ok=lowerCamelCase__      )
												with pyazr.SevenZipFile(lowerCamelCase__,       '''r'''      ) as archive:
																			archive.extractall(lowerCamelCase__      )






class  __A(						UpperCAmelCase__ ):
					__A	  =       [b"\x04\x22\x4D\x18"]

					@staticmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												if not config.LZ4_AVAILABLE:
																			raise ImportError('''Please pip install lz4'''      )
												import lza.frame

												with lza.frame.open(lowerCamelCase__,       '''rb'''      ) as compressed_file:
																			with open(lowerCamelCase__,       '''wb'''      ) as extracted_file:
																										shutil.copyfileobj(lowerCamelCase__,       lowerCamelCase__      )






class  __A:
					#  Put zip file to the last, b/c it is possible wrongly detected as zip (I guess it means: as tar or gzip)
					__A	  =       {
					    "tar": TarExtractor,
					    "gzip": GzipExtractor,
					    "zip": ZipExtractor,
					    "xz": XzExtractor,
					    "rar": RarExtractor,
					    "zstd": ZstdExtractor,
					    "bz2": BzipaExtractor,
					    "7z": SevenZipExtractor,  # <Added version="2.4.0"/>
					    "lz4": LzaExtractor,  # <Added version="2.4.0"/>
					}

					@classmethod
					def 	_UpperCamelCase     (      cls      ):





												"""simple docstring"""

												return max(
												    len(lowerCamelCase__      )
												    for extractor in cls.extractors.values()
												    if issubclass(lowerCamelCase__,       lowerCamelCase__      )
												    for extractor_magic_number in extractor.magic_numbers      )

					@staticmethod
					def 	_UpperCamelCase     (      A,       A      ):





												"""simple docstring"""

												try:
																			return MagicNumberBaseExtractor.read_magic_number(lowerCamelCase__,       magic_number_length=lowerCamelCase__      )
												except OSError:
																			return b""

					@classmethod
					def 	_UpperCamelCase     (      cls,       A,       A = False      ):





												"""simple docstring"""

												warnings.warn(
												    '''Method \'is_extractable\' was deprecated in version 2.4.0 and will be removed in 3.0.0. '''
												    '''Use \'infer_extractor_format\' instead.''',       category=lowerCamelCase__,       )
												_UpperCamelCase              =						cls.infer_extractor_format(lowerCamelCase__      )
												if extractor_format:
																			return True if not return_extractor else (True, cls.extractors[extractor_format])
												return False if not return_extractor else (False, None)

					@classmethod
					def 	_UpperCamelCase     (      cls,       A      ):  # <Added version="2.4.0"/>





												"""simple docstring"""

												_UpperCamelCase              =						cls._get_magic_number_max_length()
												_UpperCamelCase              =						cls._read_magic_number(lowerCamelCase__,       lowerCamelCase__      )
												for extractor_format, extractor in cls.extractors.items():
																			if extractor.is_extractable(lowerCamelCase__,       magic_number=lowerCamelCase__      ):
																										return extractor_format



					@classmethod
					def 	_UpperCamelCase     (      cls,       A,       A,       A = None,       A = "deprecated",       ):





												"""simple docstring"""

												os.makedirs(os.path.dirname(lowerCamelCase__      ),       exist_ok=lowerCamelCase__      )
												# Prevent parallel extractions
												_UpperCamelCase              =						str(Path(lowerCamelCase__      ).with_suffix('''.lock'''      )      )
												with FileLock(lowerCamelCase__      ):
																			shutil.rmtree(lowerCamelCase__,       ignore_errors=lowerCamelCase__      )
																			if extractor_format or extractor != "deprecated":
																										if extractor != "deprecated" or not isinstance(lowerCamelCase__,       lowerCamelCase__      ):  # passed as positional arg
																																	warnings.warn(
																																	    '''Parameter \'extractor\' was deprecated in version 2.4.0 and will be removed in 3.0.0. '''
																																	    '''Use \'extractor_format\' instead.''',       category=lowerCamelCase__,       )
																																	_UpperCamelCase              =						extractor if extractor != "deprecated" else extractor_format
																										else:
																																	_UpperCamelCase              =						cls.extractors[extractor_format]
																										return extractor.extract(lowerCamelCase__,       lowerCamelCase__      )
																			else:
																										warnings.warn(
																										    '''Parameter \'extractor_format\' was made required in version 2.4.0 and not passing it will raise an '''
																										    '''exception in 3.0.0.''',       category=lowerCamelCase__,       )
																										for extractor in cls.extractors.values():
																																	if extractor.is_extractable(lowerCamelCase__      ):
																																								return extractor.extract(lowerCamelCase__,       lowerCamelCase__      )













def     SCREAMING_SNAKE_CASE			(      lowerCAmelCase					):
       _UpperCamelCase              =						[]
       if len(lowerCAmelCase					) == 1:
              return [nums.copy()]
       for _ in range(len(lowerCAmelCase					)					):
              _UpperCamelCase              =						nums.pop(0					)
              _UpperCamelCase              =						permute(lowerCAmelCase					)
              for perm in permutations:
                     perm.append(lowerCAmelCase					)
              result.extend(lowerCAmelCase					)
              nums.append(lowerCAmelCase					)
       return result


def     SCREAMING_SNAKE_CASE			(      lowerCAmelCase					):

       def backtrack(lowerCAmelCase					):
              if start == len(lowerCAmelCase					) - 1:
                     output.append(nums[:]					)
              else:
                     for i in range(lowerCAmelCase    ,       len(lowerCAmelCase					)					):
                            _UpperCamelCase       ,		_UpperCamelCase              =						nums[i], nums[start]
                            backtrack(start + 1					)
                            _UpperCamelCase       ,		_UpperCamelCase              =						nums[i], nums[start]  # backtrack

       _UpperCamelCase              =						[]
       backtrack(0					)
       return output


if __name__ == "__main__":
       import doctest

       # use res to print the data in permute2 function
       lowercase    : Optional[Any]    	=  permutea([1, 2, 3])
       print(res)
       doctest.testmod()






