
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


UpperCAmelCase_					:   Optional[Any] 							=						get_logger(__name__)





class      lowercase__    :







  def __init__(	self    ,						_lowercase = None						):
       lowerCAmelCase_					:       str    =		(
           os.path.join(_lowercase    ,						config.EXTRACTED_DATASETS_DIR						) if cache_dir else config.EXTRACTED_DATASETS_PATH
       )
       lowerCAmelCase_					:       Dict    =		Extractor







  def 	UpperCAmelCase__		(	self    ,						_lowercase						):
       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"
       lowerCAmelCase_					:       Optional[Any]    =		os.path.abspath(_lowercase						)
       return os.path.join(self.extract_dir    ,						hash_url_to_filename(_lowercase						)						)







  def 	UpperCAmelCase__		(	self    ,						_lowercase    ,						_lowercase						):
       return force_extract or (
           not os.path.isfile(_lowercase						) and not (os.path.isdir(_lowercase						) and os.listdir(_lowercase						))
       )







  def 	UpperCAmelCase__		(	self    ,						_lowercase    ,						_lowercase = False						):
       lowerCAmelCase_					:       Tuple    =		self.extractor.infer_extractor_format(_lowercase						)
       if not extractor_format:
            return input_path
       lowerCAmelCase_					:       int    =		self._get_output_path(_lowercase						)
       if self._do_extract(_lowercase    ,						_lowercase						):
            self.extractor.extract(_lowercase    ,						_lowercase    ,						_lowercase						)
       return output_path





class      lowercase__    (							__A  ):







  @classmethod
  @abstractmethod
  def 	UpperCAmelCase__		(	cls    ,						_lowercase    ,						**_lowercase						):
       ...







  @staticmethod
  @abstractmethod
  def 	UpperCAmelCase__		(	_lowercase    ,						_lowercase						):
       ...





class      lowercase__    (							__A     ,					__A  ):
  __UpperCamelCase	     =  []







  @staticmethod
  def 	UpperCAmelCase__		(	_lowercase    ,						_lowercase						):
       with open(_lowercase    ,						"""rb"""						) as f:
            return f.read(_lowercase						)







  @classmethod
  def 	UpperCAmelCase__		(	cls    ,						_lowercase    ,						_lowercase = b""						):
       if not magic_number:
            lowerCAmelCase_					:       Any    =		max(len(_lowercase						) for cls_magic_number in cls.magic_numbers						)
            try:
                 lowerCAmelCase_					:       Any    =		cls.read_magic_number(_lowercase    ,						_lowercase						)
            except OSError:
                 return False
       return any(magic_number.startswith(_lowercase						) for cls_magic_number in cls.magic_numbers						)





class      lowercase__    (							__A  ):







  @classmethod
  def 	UpperCAmelCase__		(	cls    ,						_lowercase    ,						**_lowercase						):
       return tarfile.is_tarfile(_lowercase						)







  @staticmethod
  def 	UpperCAmelCase__		(	_lowercase    ,						_lowercase						):

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

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

       def badlink(_lowercase    ,						_lowercase						) -> bool:
            # Links are interpreted relative to the directory containing the link
            lowerCAmelCase_					:       List[str]    =		resolved(os.path.join(_lowercase    ,						os.path.dirname(info.name						)						)						)
            return badpath(info.linkname    ,						base=_lowercase						)

       lowerCAmelCase_					:       Tuple    =		resolved(_lowercase						)

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







  @staticmethod
  def 	UpperCAmelCase__		(	_lowercase    ,						_lowercase						):
       os.makedirs(_lowercase    ,						exist_ok=_lowercase						)
       lowerCAmelCase_					:       Tuple    =		tarfile.open(_lowercase						)
       tar_file.extractall(_lowercase    ,						members=TarExtractor.safemembers(_lowercase    ,						_lowercase						)						)
       tar_file.close()





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







  @staticmethod
  def 	UpperCAmelCase__		(	_lowercase    ,						_lowercase						):
       with gzip.open(_lowercase    ,						"""rb"""						) as gzip_file:
            with open(_lowercase    ,						"""wb"""						) as extracted_file:
                 shutil.copyfileobj(_lowercase    ,						_lowercase						)





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







  @classmethod
  def 	UpperCAmelCase__		(	cls    ,						_lowercase    ,						_lowercase = b""						):
       if super().is_extractable(_lowercase    ,						magic_number=_lowercase						):
            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(_lowercase    ,						"""rb"""						) as fp:
                 lowerCAmelCase_					:       Tuple    =		_EndRecData(_lowercase						)
                 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:
                                lowerCAmelCase_					:       Optional[Any]    =		fp.read(_lowercase						)  # CD is where we expect it to be
                                if len(_lowercase						) == sizeCentralDir:
                                     lowerCAmelCase_					:       List[Any]    =		struct.unpack(_lowercase    ,						_lowercase						)  # 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__		(	_lowercase    ,						_lowercase						):
       os.makedirs(_lowercase    ,						exist_ok=_lowercase						)
       with zipfile.ZipFile(_lowercase    ,						"""r"""						) as zip_file:
            zip_file.extractall(_lowercase						)
            zip_file.close()





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







  @staticmethod
  def 	UpperCAmelCase__		(	_lowercase    ,						_lowercase						):
       with lzma.open(_lowercase						) as compressed_file:
            with open(_lowercase    ,						"""wb"""						) as extracted_file:
                 shutil.copyfileobj(_lowercase    ,						_lowercase						)





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







  @staticmethod
  def 	UpperCAmelCase__		(	_lowercase    ,						_lowercase						):
       if not config.RARFILE_AVAILABLE:
            raise ImportError("""Please pip install rarfile"""						)
       import rarfile

       os.makedirs(_lowercase    ,						exist_ok=_lowercase						)
       lowerCAmelCase_					:       int    =		rarfile.RarFile(_lowercase						)
       rf.extractall(_lowercase						)
       rf.close()





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







  @staticmethod
  def 	UpperCAmelCase__		(	_lowercase    ,						_lowercase						):
       if not config.ZSTANDARD_AVAILABLE:
            raise ImportError("""Please pip install zstandard"""						)
       import zstandard as zstd

       lowerCAmelCase_					:       List[Any]    =		zstd.ZstdDecompressor()
       with open(_lowercase    ,						"""rb"""						) as ifh, open(_lowercase    ,						"""wb"""						) as ofh:
            dctx.copy_stream(_lowercase    ,						_lowercase						)





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







  @staticmethod
  def 	UpperCAmelCase__		(	_lowercase    ,						_lowercase						):
       with bza.open(_lowercase    ,						"""rb"""						) as compressed_file:
            with open(_lowercase    ,						"""wb"""						) as extracted_file:
                 shutil.copyfileobj(_lowercase    ,						_lowercase						)





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







  @staticmethod
  def 	UpperCAmelCase__		(	_lowercase    ,						_lowercase						):
       if not config.PY7ZR_AVAILABLE:
            raise ImportError("""Please pip install py7zr"""						)
       import pyazr

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





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







  @staticmethod
  def 	UpperCAmelCase__		(	_lowercase    ,						_lowercase						):
       if not config.LZ4_AVAILABLE:
            raise ImportError("""Please pip install lz4"""						)
       import lza.frame

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





class      lowercase__    :
  #  Put zip file to the last, b/c it is possible wrongly detected as zip (I guess it means: as tar or gzip)
  __UpperCamelCase	     =  {
      """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						):
       return max(
           len(_lowercase						)
           for extractor in cls.extractors.values()
           if issubclass(_lowercase    ,						_lowercase						)
           for extractor_magic_number in extractor.magic_numbers						)







  @staticmethod
  def 	UpperCAmelCase__		(	_lowercase    ,						_lowercase						):
       try:
            return MagicNumberBaseExtractor.read_magic_number(_lowercase    ,						magic_number_length=_lowercase						)
       except OSError:
            return b""







  @classmethod
  def 	UpperCAmelCase__		(	cls    ,						_lowercase    ,						_lowercase = False						):
       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=_lowercase    ,						)
       lowerCAmelCase_					:       Optional[int]    =		cls.infer_extractor_format(_lowercase						)
       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    ,						_lowercase						):  # <Added version="2.4.0"/>
       lowerCAmelCase_					:       Optional[Any]    =		cls._get_magic_number_max_length()
       lowerCAmelCase_					:       str    =		cls._read_magic_number(_lowercase    ,						_lowercase						)
       for extractor_format, extractor in cls.extractors.items():
            if extractor.is_extractable(_lowercase    ,						magic_number=_lowercase						):
                 return extractor_format







  @classmethod
  def 	UpperCAmelCase__		(	cls    ,						_lowercase    ,						_lowercase    ,						_lowercase = None    ,						_lowercase = "deprecated"    ,						):
       os.makedirs(os.path.dirname(_lowercase						)    ,						exist_ok=_lowercase						)
       # Prevent parallel extractions
       lowerCAmelCase_					:       str    =		str(Path(_lowercase						).with_suffix(""".lock"""						)						)
       with FileLock(_lowercase						):
            shutil.rmtree(_lowercase    ,						ignore_errors=_lowercase						)
            if extractor_format or extractor != "deprecated":
                 if extractor != "deprecated" or not isinstance(_lowercase    ,						_lowercase						):  # 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=_lowercase    ,						)
                      lowerCAmelCase_					:       int    =		extractor if extractor != """deprecated""" else extractor_format
                 else:
                      lowerCAmelCase_					:       Optional[int]    =		cls.extractors[extractor_format]
                 return extractor.extract(_lowercase    ,						_lowercase						)
            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=_lowercase    ,						)
                 for extractor in cls.extractors.values():
                      if extractor.is_extractable(_lowercase						):
                           return extractor.extract(_lowercase    ,						_lowercase						)







import enum
import os
from hashlib import shaaaa
from typing import Optional

from .. import config
from .logging import get_logger


UpperCAmelCase_					:   int 							=						get_logger(__name__)





class      lowercase__    (							enum.Enum  ):
  __UpperCamelCase	     =  """all_checks"""
  __UpperCamelCase	     =  """basic_checks"""
  __UpperCamelCase	     =  """no_checks"""





class      lowercase__    (							__A  ):
  pass





class      lowercase__    (							__A  ):
  pass





class      lowercase__    (							__A  ):
  pass





class      lowercase__    (							__A  ):
  pass






def 							_lowerCAmelCase (  _a   :					Optional[dict]					,   _a   :					dict					,   _a   :					str=None			)	->			Optional[Any]:
     if expected_checksums is None:
          logger.info("""Unable to verify checksums."""			)
          return
     if len(set(_a			) - set(_a			)			) > 0:
          raise ExpectedMoreDownloadedFiles(str(set(_a			) - set(_a			)			)			)
     if len(set(_a			) - set(_a			)			) > 0:
          raise UnexpectedDownloadedFile(str(set(_a			) - set(_a			)			)			)
     lowerCAmelCase_					:       Union[str, Any]    =		[url for url in expected_checksums if expected_checksums[url] != recorded_checksums[url]]
     lowerCAmelCase_					:       Optional[Any]    =		""" for """ + verification_name if verification_name is not None else """"""
     if len(_a			) > 0:
          raise NonMatchingChecksumError(
              F'Checksums didn\'t match{for_verification_name}:\n'
              F'{bad_urls}\n'
              """Set `verification_mode='no_checks'` to skip checksums verification and ignore this error"""			)
     logger.info("""All the checksums matched successfully""" + for_verification_name			)





class      lowercase__    (							__A  ):
  pass





class      lowercase__    (							__A  ):
  pass





class      lowercase__    (							__A  ):
  pass





class      lowercase__    (							__A  ):
  pass






def 							_lowerCAmelCase (  _a   :					Optional[dict]					,   _a   :					dict			)	->			str:
     if expected_splits is None:
          logger.info("""Unable to verify splits sizes."""			)
          return
     if len(set(_a			) - set(_a			)			) > 0:
          raise ExpectedMoreSplits(str(set(_a			) - set(_a			)			)			)
     if len(set(_a			) - set(_a			)			) > 0:
          raise UnexpectedSplits(str(set(_a			) - set(_a			)			)			)
     lowerCAmelCase_					:       Optional[int]    =		[
         {"""expected""": expected_splits[name], """recorded""": recorded_splits[name]}
         for name in expected_splits
         if expected_splits[name].num_examples != recorded_splits[name].num_examples
     ]
     if len(_a			) > 0:
          raise NonMatchingSplitsSizesError(str(_a			)			)
     logger.info("""All the splits matched successfully."""			)






def 							_lowerCAmelCase (  _a   :					str					,   _a   :					bool = True			)	->			dict:
     if record_checksum:
          lowerCAmelCase_					:       int    =		shaaaa()
          with open(_a					,   """rb"""			) as f:
               for chunk in iter(lambda: f.read(1 << 20			)					,   B""""""			):
                    m.update(_a			)
               lowerCAmelCase_					:       List[str]    =		m.hexdigest()
     else:
          lowerCAmelCase_					:       Union[str, Any]    =		None
     return {"num_bytes": os.path.getsize(_a			), "checksum": checksum}







def 							_lowerCAmelCase (  _a   :					Tuple			)	->			Optional[int]:
     if dataset_size and config.IN_MEMORY_MAX_SIZE:
          return dataset_size < config.IN_MEMORY_MAX_SIZE
     else:
          return False
