import os
from pathlib import Path
from unittest.mock import patch

import pytest
import zstandard as zstd

from datasets.download.download_config import DownloadConfig
from datasets.utils.file_utils import (
    OfflineModeIsEnabled,
    cached_path,
    fsspec_get,
    fsspec_head,
    ftp_get,
    ftp_head,
    get_from_cache,
    http_get,
    http_head,
)


_UpperCAmelCase :			List[str]              =	"\\n    Text data.\n    Second line of data."

_UpperCAmelCase :			str              =	"file"


@pytest.fixture(scope='session'			)
def 				A	( lowercase			)       ->  List[Any]:
		'''simple docstring'''

		UpperCamelCase          =					tmp_path_factory.mktemp('data'			) / (FILE_PATH + '.zstd')
		UpperCamelCase          =					bytes(lowercase   ,	'utf-8'			)
		with zstd.open(lowercase   ,	'wb'			) as f:
				f.write(lowercase			)
		return path


@pytest.fixture
def 				A	( lowercase			)       ->  Tuple:
		'''simple docstring'''

		with open(os.path.join(tmpfs.local_root_dir   ,	lowercase			)   ,	'w'			) as f:
				f.write(lowercase			)
		return FILE_PATH


@pytest.mark.parametrize('compression_format'   ,	['gzip', 'xz', 'zstd']			)
def 				A	( lowercase   ,	lowercase   ,	lowercase   ,	lowercase   ,	lowercase   ,	lowercase			)       ->  Union[str, Any]:
		'''simple docstring'''

		UpperCamelCase          =					{'gzip': gz_file, 'xz': xz_file, 'zstd': zstd_path}
		UpperCamelCase          =					input_paths[compression_format]
		UpperCamelCase          =					tmp_path / 'cache'
		UpperCamelCase          =					DownloadConfig(cache_dir=lowercase   ,	extract_compressed_file=lowercase			)
		UpperCamelCase          =					cached_path(lowercase   ,	download_config=lowercase			)
		with open(lowercase			) as f:
				UpperCamelCase          =					f.read()
		with open(lowercase			) as f:
				UpperCamelCase          =					f.read()
		assert extracted_file_content == expected_file_content


@pytest.mark.parametrize('default_extracted'   ,	[True, False]			)
@pytest.mark.parametrize('default_cache_dir'   ,	[True, False]			)
def 				A	( lowercase   ,	lowercase   ,	lowercase   ,	lowercase   ,	lowercase			)       ->  List[str]:
		'''simple docstring'''

		UpperCamelCase          =					'custom_cache'
		UpperCamelCase          =					'custom_extracted_dir'
		UpperCamelCase          =					tmp_path / 'custom_extracted_path'
		if default_extracted:
				UpperCamelCase          =					('downloads' if default_cache_dir else custom_cache_dir, 'extracted')
		else:
				monkeypatch.setattr('datasets.config.EXTRACTED_DATASETS_DIR'   ,	lowercase			)
				monkeypatch.setattr('datasets.config.EXTRACTED_DATASETS_PATH'   ,	str(lowercase			)			)
				UpperCamelCase          =					custom_extracted_path.parts[-2:] if default_cache_dir else (custom_cache_dir, custom_extracted_dir)

		UpperCamelCase          =					xz_file
		UpperCamelCase          =					(
		    DownloadConfig(extract_compressed_file=lowercase			)
		    if default_cache_dir
		    else DownloadConfig(cache_dir=tmp_path / custom_cache_dir   ,	extract_compressed_file=lowercase			)
		)
		UpperCamelCase          =					cached_path(lowercase   ,	download_config=lowercase			)
		assert Path(lowercase			).parent.parts[-2:] == expected


def 				A	( lowercase			)       ->  Tuple:
		'''simple docstring'''

		UpperCamelCase          =					str(Path(lowercase			).resolve()			)
		assert cached_path(lowercase			) == text_file
		# relative path
		UpperCamelCase          =					str(Path(lowercase			).resolve().relative_to(Path(os.getcwd()			)			)			)
		assert cached_path(lowercase			) == text_file


def 				A	( lowercase			)       ->  Dict:
		'''simple docstring'''

		UpperCamelCase          =					str(tmp_path.resolve() / '__missing_file__.txt'			)
		with pytest.raises(lowercase			):
				cached_path(lowercase			)
		# relative path
		UpperCamelCase          =					'./__missing_file__.txt'
		with pytest.raises(lowercase			):
				cached_path(lowercase			)


def 				A	( lowercase			)       ->  Optional[Any]:
		'''simple docstring'''

		UpperCamelCase          =					get_from_cache(f'''tmp://{tmpfs_file}'''			)
		with open(lowercase			) as f:
				UpperCamelCase          =					f.read()
		assert output_file_content == FILE_CONTENT


@patch('datasets.config.HF_DATASETS_OFFLINE'   ,	lowercase			)
def 				A	( )       ->  Tuple:
		'''simple docstring'''

		with pytest.raises(lowercase			):
				cached_path('https://huggingface.co'			)


@patch('datasets.config.HF_DATASETS_OFFLINE'   ,	lowercase			)
def 				A	( lowercase			)       ->  List[Any]:
		'''simple docstring'''

		UpperCamelCase          =					tmp_path_factory.mktemp('data'			) / 'file.html'
		with pytest.raises(lowercase			):
				http_get('https://huggingface.co'   ,	temp_file=lowercase			)
		with pytest.raises(lowercase			):
				http_head('https://huggingface.co'			)


@patch('datasets.config.HF_DATASETS_OFFLINE'   ,	lowercase			)
def 				A	( lowercase			)       ->  str:
		'''simple docstring'''

		UpperCamelCase          =					tmp_path_factory.mktemp('data'			) / 'file.html'
		with pytest.raises(lowercase			):
				ftp_get('ftp://huggingface.co'   ,	temp_file=lowercase			)
		with pytest.raises(lowercase			):
				ftp_head('ftp://huggingface.co'			)


@patch('datasets.config.HF_DATASETS_OFFLINE'   ,	lowercase			)
def 				A	( lowercase			)       ->  Optional[int]:
		'''simple docstring'''

		UpperCamelCase          =					tmp_path_factory.mktemp('data'			) / 'file.html'
		with pytest.raises(lowercase			):
				fsspec_get('s3://huggingface.co'   ,	temp_file=lowercase			)
		with pytest.raises(lowercase			):
				fsspec_head('s3://huggingface.co'			)


from __future__ import annotations


def 				A	( lowercase   ,	lowercase			)       ->  tuple[int, int]:
		'''simple docstring'''

		if b == 0:
				return (1, 0)
		((UpperCamelCase)     ,  (UpperCamelCase))          =					extended_euclid(lowercase   ,	a % b			)
		UpperCamelCase          =					a // b
		return (y, x - k * y)


def 				A	( lowercase   ,	lowercase   ,	lowercase   ,	lowercase			)       ->  int:
		'''simple docstring'''

		((UpperCamelCase)     ,  (UpperCamelCase))          =					extended_euclid(lowercase   ,	lowercase			)
		UpperCamelCase          =					na * na
		UpperCamelCase          =					ra * x * na + ra * y * na
		return (n % m + m) % m


def 				A	( lowercase   ,	lowercase			)       ->  int:
		'''simple docstring'''

		((UpperCamelCase)     ,  (UpperCamelCase))          =					extended_euclid(lowercase   ,	lowercase			)
		if b < 0:
				UpperCamelCase          =					(b % n + n) % n
		return b


def 				A	( lowercase   ,	lowercase   ,	lowercase   ,	lowercase			)       ->  int:
		'''simple docstring'''

		UpperCamelCase     ,  UpperCamelCase          =					invert_modulo(lowercase   ,	lowercase			), invert_modulo(lowercase   ,	lowercase			)
		UpperCamelCase          =					na * na
		UpperCamelCase          =					ra * x * na + ra * y * na
		return (n % m + m) % m


if __name__ == "__main__":
					from doctest import testmod

					testmod(name="chinese_remainder_theorem", verbose=True)
					testmod(name="chinese_remainder_theorem2", verbose=True)
					testmod(name="invert_modulo", verbose=True)
					testmod(name="extended_euclid", verbose=True)
