import os
import zipfile

import pytest

from datasets.utils.extract import (
    BzipaExtractor,
    Extractor,
    GzipExtractor,
    LzaExtractor,
    SevenZipExtractor,
    TarExtractor,
    XzExtractor,
    ZipExtractor,
    ZstdExtractor,
)

from .utils import require_lza, require_pyazr, require_zstandard





@pytest.mark.parametrize(
    "compression_format, is_archive"   ,			[
        ("7z", True),
        ("bz2", False),
        ("gzip", False),
        ("lz4", False),
        ("tar", True),
        ("xz", False),
        ("zip", True),
        ("zstd", False),
    ]   ,			)
def 						__lowerCamelCase				(UpperCAmelCase__  :				Union[str, Any]   ,			UpperCAmelCase__  :				Any   ,			UpperCAmelCase__  :				Union[str, Any]   ,			UpperCAmelCase__  :				Tuple   ,			UpperCAmelCase__  :				List[str]   ,			UpperCAmelCase__  :				List[str]   ,			UpperCAmelCase__  :				Optional[int]   ,			UpperCAmelCase__  :				Optional[int]   ,			UpperCAmelCase__  :				List[Any]   ,			UpperCAmelCase__  :				str   ,			UpperCAmelCase__  :				List[str]   ,			UpperCAmelCase__  :				List[Any]   ,			):
					SCREAMING_SNAKE_CASE           =							{
					    """7z""": (seven_zip_file, SevenZipExtractor),
					    """bz2""": (bza_file, BzipaExtractor),
					    """gzip""": (gz_file, GzipExtractor),
					    """lz4""": (lza_file, LzaExtractor),
					    """tar""": (tar_file, TarExtractor),
					    """xz""": (xz_file, XzExtractor),
					    """zip""": (zip_file, ZipExtractor),
					    """zstd""": (zstd_file, ZstdExtractor),
					}
					SCREAMING_SNAKE_CASE           =							input_paths_and_base_extractors[compression_format]
					if input_path is None:
										SCREAMING_SNAKE_CASE           =							F"for '{compression_format}' compression_format, "
										if compression_format == "7z":
															reason += require_pyazr.kwargs["reason"]
										elif compression_format == "lz4":
															reason += require_lza.kwargs["reason"]
										elif compression_format == "zstd":
															reason += require_zstandard.kwargs["reason"]
										pytest.skip(UpperCAmelCase__	)
					assert base_extractor.is_extractable(UpperCAmelCase__	)
					SCREAMING_SNAKE_CASE           =							tmp_path / ("""extracted""" if is_archive else """extracted.txt""")
					base_extractor.extract(UpperCAmelCase__   ,			UpperCAmelCase__	)
					if is_archive:
										assert output_path.is_dir()
										for file_path in output_path.iterdir():
															assert file_path.name == text_file.name
															SCREAMING_SNAKE_CASE           =							file_path.read_text(encoding="utf-8"	)
					else:
										SCREAMING_SNAKE_CASE           =							output_path.read_text(encoding="utf-8"	)
					SCREAMING_SNAKE_CASE           =							text_file.read_text(encoding="utf-8"	)
					assert extracted_file_content == expected_file_content





@pytest.mark.parametrize(
    "compression_format, is_archive"   ,			[
        ("7z", True),
        ("bz2", False),
        ("gzip", False),
        ("lz4", False),
        ("tar", True),
        ("xz", False),
        ("zip", True),
        ("zstd", False),
    ]   ,			)
def 						__lowerCamelCase				(UpperCAmelCase__  :				List[str]   ,			UpperCAmelCase__  :				List[str]   ,			UpperCAmelCase__  :				Tuple   ,			UpperCAmelCase__  :				Dict   ,			UpperCAmelCase__  :				List[str]   ,			UpperCAmelCase__  :				int   ,			UpperCAmelCase__  :				str   ,			UpperCAmelCase__  :				int   ,			UpperCAmelCase__  :				str   ,			UpperCAmelCase__  :				Optional[Any]   ,			UpperCAmelCase__  :				Optional[Any]   ,			UpperCAmelCase__  :				Optional[int]   ,			):
					SCREAMING_SNAKE_CASE           =							{
					    """7z""": seven_zip_file,
					    """bz2""": bza_file,
					    """gzip""": gz_file,
					    """lz4""": lza_file,
					    """tar""": tar_file,
					    """xz""": xz_file,
					    """zip""": zip_file,
					    """zstd""": zstd_file,
					}
					SCREAMING_SNAKE_CASE           =							input_paths[compression_format]
					if input_path is None:
										SCREAMING_SNAKE_CASE           =							F"for '{compression_format}' compression_format, "
										if compression_format == "7z":
															reason += require_pyazr.kwargs["reason"]
										elif compression_format == "lz4":
															reason += require_lza.kwargs["reason"]
										elif compression_format == "zstd":
															reason += require_zstandard.kwargs["reason"]
										pytest.skip(UpperCAmelCase__	)
					SCREAMING_SNAKE_CASE           =							Extractor.infer_extractor_format(UpperCAmelCase__	)
					assert extractor_format is not None
					SCREAMING_SNAKE_CASE           =							tmp_path / ("""extracted""" if is_archive else """extracted.txt""")
					Extractor.extract(UpperCAmelCase__   ,			UpperCAmelCase__   ,			UpperCAmelCase__	)
					if is_archive:
										assert output_path.is_dir()
										for file_path in output_path.iterdir():
															assert file_path.name == text_file.name
															SCREAMING_SNAKE_CASE           =							file_path.read_text(encoding="utf-8"	)
					else:
										SCREAMING_SNAKE_CASE           =							output_path.read_text(encoding="utf-8"	)
					SCREAMING_SNAKE_CASE           =							text_file.read_text(encoding="utf-8"	)
					assert extracted_file_content == expected_file_content





@pytest.fixture
def 						__lowerCamelCase				(UpperCAmelCase__  :				Any   ,			UpperCAmelCase__  :				Optional[int]	):
					import tarfile

					SCREAMING_SNAKE_CASE           =							tmp_path / """data_dot_dot"""
					directory.mkdir()
					SCREAMING_SNAKE_CASE           =							directory / """tar_file_with_dot_dot.tar"""
					with tarfile.TarFile(UpperCAmelCase__   ,			"w"	) as f:
										f.add(UpperCAmelCase__   ,			arcname=os.path.join(".."   ,			text_file.name	)	)
					return path





@pytest.fixture
def 						__lowerCamelCase				(UpperCAmelCase__  :				str	):
					import tarfile

					SCREAMING_SNAKE_CASE           =							tmp_path / """data_sym_link"""
					directory.mkdir()
					SCREAMING_SNAKE_CASE           =							directory / """tar_file_with_sym_link.tar"""
					os.symlink(".."   ,			directory / "subdir"   ,			target_is_directory=UpperCAmelCase__	)
					with tarfile.TarFile(UpperCAmelCase__   ,			"w"	) as f:
										f.add(str(directory / "subdir"	)   ,			arcname="subdir"	)  # str required by os.readlink on Windows and Python < 3.8
					return path





@pytest.mark.parametrize(
    "insecure_tar_file, error_log"   ,			[("tar_file_with_dot_dot", "illegal path"), ("tar_file_with_sym_link", "Symlink")]   ,			)
def 						__lowerCamelCase				(UpperCAmelCase__  :				Tuple   ,			UpperCAmelCase__  :				Dict   ,			UpperCAmelCase__  :				Optional[Any]   ,			UpperCAmelCase__  :				List[str]   ,			UpperCAmelCase__  :				int   ,			UpperCAmelCase__  :				Union[str, Any]	):
					SCREAMING_SNAKE_CASE           =							{
					    """tar_file_with_dot_dot""": tar_file_with_dot_dot,
					    """tar_file_with_sym_link""": tar_file_with_sym_link,
					}
					SCREAMING_SNAKE_CASE           =							insecure_tar_files[insecure_tar_file]
					SCREAMING_SNAKE_CASE           =							tmp_path / """extracted"""
					TarExtractor.extract(UpperCAmelCase__   ,			UpperCAmelCase__	)
					assert caplog.text
					for record in caplog.records:
										assert record.levelname == "ERROR"
										assert error_log in record.msg





def 						__lowerCamelCase				(UpperCAmelCase__  :				Tuple	):
					# We should have less false positives than zipfile.is_zipfile
					# We do that by checking only the magic number
					SCREAMING_SNAKE_CASE           =							tmpdir / """not_a_zip_file"""
					# From: https://github.com/python/cpython/pull/5053
					SCREAMING_SNAKE_CASE           =							(
					    B"""\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x01\x00\x00"""
					    B"""\x00\x02\x08\x06\x00\x00\x00\x99\x81\xb6'\x00\x00\x00\x15I"""
					    B"""DATx\x01\x01\n\x00\xf5\xff\x00PK\x05\x06\x00PK\x06\x06\x07"""
					    B"""\xac\x01N\xc6|a\r\x00\x00\x00\x00IEND\xaeB`\x82"""
					)
					with not_a_zip_file.open("wb"	) as f:
										f.write(UpperCAmelCase__	)
					assert zipfile.is_zipfile(str(UpperCAmelCase__	)	)  # is a false positive for `zipfile`
					assert not ZipExtractor.is_extractable(UpperCAmelCase__	)  # but we're right










import heapq




def 		lowerCAmelCase_ (						lowerCamelCase ):
				__magic_name__						:						list[list]										=[]

				# for each node and his adjacency list add them and the rank of the node to queue
				# using heapq module the queue will be filled like a Priority Queue
				# heapq works with a min priority queue, so I used -1*len(v) to build it
				for key, value in graph.items():
								# O(log(n))
								heapq.heappush(lowerCamelCase						,  [-1 * len(lowerCamelCase ), (key, value)] )

				# chosen_vertices = set of chosen vertices
				__magic_name__						:						Tuple										=set()

				# while queue isn't empty and there are still edges
				#   (queue[0][0] is the rank of the node with max rank)
				while queue and queue[0][0] != 0:
								# extract vertex with max rank from queue and add it to chosen_vertices
								__magic_name__						:						Tuple										=heapq.heappop(lowerCamelCase )[1][0]
								chosen_vertices.add(lowerCamelCase )

								# Remove all arcs adjacent to argmax
								for elem in queue:
												# if v haven't adjacent node, skip
												if elem[0] == 0:
																continue
												# if argmax is reachable from elem
												# remove argmax from elem's adjacent list and update his rank
												if argmax in elem[1][1]:
																__magic_name__						:						Tuple										=elem[1][1].index(lowerCamelCase )
																del elem[1][1][index]
																elem[0] += 1
        # re-order the queue
								heapq.heapify(lowerCamelCase )
				return chosen_vertices


if __name__ == "__main__":
							import doctest

							doctest.testmod()

							UpperCAmelCase_		:					Optional[int]          =  {0: [1, 3], 1: [0, 3], 2: [0, 3, 4], 3: [0, 1, 2], 4: [2, 3]}
							print(F"""Minimum vertex cover:\n{greedy_min_vertex_cover(graph)}""")




