






#
# Sort large text files in a minimum amount of memory
#
import argparse
import os





class   SCREAMING_SNAKE_CASE :





							"""simple docstring"""

							A_       =    "block_{0}.dat"

							def __init__(     self:      List[str]						,   __A:      List[str]      )			-> Tuple:
												_A									=       filename
												_A									=       []

							def 					__A       (     self:      Union[str, Any]						,   __A:      Tuple						,   __A:      Union[str, Any]      )			-> Optional[int]:
												_A									=       self.BLOCK_FILENAME_FORMAT.format(__A      )
												with open(__A						,   '''w'''      ) as file:
																	file.write(__A      )
												self.block_filenames.append(__A      )

							def 					__A       (     self:      str      )			-> Optional[int]:
												return self.block_filenames

							def 					__A       (     self:      Dict						,   __A:      Union[str, Any]						,   __A:      List[str]=None      )			-> Dict:
												_A									=       0
												with open(self.filename      ) as file:
																	while True:
																						_A									=       file.readlines(__A      )

																						if lines == []:
																											break

																						if sort_key is None:
																											lines.sort()
																						else:
																											lines.sort(key=__A      )

																						self.write_block(''''''.join(__A      )						,   __A      )
																						i += 1



							def 					__A       (     self:      Optional[int]      )			-> Tuple:
												map(os.remove						,   self.block_filenames      )





class   SCREAMING_SNAKE_CASE :





							"""simple docstring"""

							def 					__A       (     self:      str						,   __A:      Optional[int]      )			-> int:
												_A									=       -1
												_A									=       None

												for i in range(len(__A      )      ):
																	if min_str is None or choices[i] < min_str:
																						_A									=       i

												return min_index





class   SCREAMING_SNAKE_CASE :





							"""simple docstring"""

							def __init__(     self:      Union[str, Any]						,   __A:      Union[str, Any]      )			-> Optional[Any]:
												_A									=       files
												_A									=       set()
												_A									=       len(__A      )
												_A									=       {i: None for i in range(self.num_buffers      )}

							def 					__A       (     self:      Any      )			-> Union[str, Any]:
												return {
												    i: self.buffers[i] for i in range(self.num_buffers      ) if i not in self.empty
												}

							def 					__A       (     self:      Union[str, Any]      )			-> Optional[int]:
												for i in range(self.num_buffers      ):
																	if self.buffers[i] is None and i not in self.empty:
																						_A									=       self.files[i].readline()

																						if self.buffers[i] == "":
																											self.empty.add(__A      )
																											self.files[i].close()

												if len(self.empty      ) == self.num_buffers:
																	return False

												return True



							def 					__A       (     self:      Optional[Any]						,   __A:      Dict      )			-> Tuple:
												_A									=       self.buffers[index]
												_A									=       None

												return value





class   SCREAMING_SNAKE_CASE :





							"""simple docstring"""

							def __init__(     self:      Optional[int]						,   __A:      Dict      )			-> int:
												_A									=       merge_strategy

							def 					__A       (     self:      Union[str, Any]						,   __A:      Union[str, Any]						,   __A:      str						,   __A:      List[Any]      )			-> Dict:
												_A									=       FilesArray(self.get_file_handles(__A						,   __A      )      )
												with open(__A						,   '''w'''						,   __A      ) as outfile:
																	while buffers.refresh():
																						_A									=       self.merge_strategy.select(buffers.get_dict()      )
																						outfile.write(buffers.unshift(__A      )      )



							def 					__A       (     self:      int						,   __A:      List[str]						,   __A:      int      )			-> Dict:
												_A									=       {}

												for i in range(len(__A      )      ):
																	_A									=       open(filenames[i]						,   '''r'''						,   __A      )  # noqa: UP015

												return files





class   SCREAMING_SNAKE_CASE :





							"""simple docstring"""

							def __init__(     self:      Tuple						,   __A:      Dict      )			-> Any:
												_A									=       block_size

							def 					__A       (     self:      Tuple						,   __A:      Optional[Any]						,   __A:      Dict=None      )			-> int:
												_A									=       self.get_number_blocks(__A						,   self.block_size      )
												_A									=       FileSplitter(__A      )
												splitter.split(self.block_size						,   __A      )

												_A									=       FileMerger(NWayMerge()      )
												_A									=       self.block_size / (num_blocks + 1)
												merger.merge(splitter.get_block_filenames()						,   filename + '''.out'''						,   __A      )

												splitter.cleanup()



							def 					__A       (     self:      Union[str, Any]						,   __A:      Union[str, Any]						,   __A:      str      )			-> Tuple:
												return (os.stat(__A      ).st_size / block_size) + 1




def    __A    (   _lowercase       ):

					'''simple docstring'''







					if string[-1].lower() == "k":
										return int(string[:-1]       ) * 10_24
					elif string[-1].lower() == "m":
										return int(string[:-1]       ) * 10_24 * 10_24
					elif string[-1].lower() == "g":
										return int(string[:-1]       ) * 10_24 * 10_24 * 10_24
					else:
										return int(_lowercase       )




def    __A    (   ):

					'''simple docstring'''







					_A									=       argparse.ArgumentParser()
					parser.add_argument(
					    '''-m'''    ,	'''--mem'''    ,	help='''amount of memory to use for sorting'''    ,	default='''100M'''       )
					parser.add_argument(
					    '''filename'''    ,	metavar='''<filename>'''    ,	nargs=1    ,	help='''name of file to sort'''       )
					_A									=       parser.parse_args()

					_A									=       ExternalSort(parse_memory(args.mem       )       )
					sorter.sort(args.filename[0]       )


if __name__ == "__main__":
				main()











class   SCREAMING_SNAKE_CASE :





							"""simple docstring"""

							def __init__(     self:      Any      )			-> None:
												# numbermap keys are the number and its values are lists of indexes sorted
												# in ascending order
												_A									=       {}
												# indexmap keys are an index and it's values are the number at that index
												_A									=       {}

							def 					__A       (     self:      Any						,   __A:      list | str | range						,   __A:      int      )			-> list[int]:
												if isinstance(__A						,   (range, str)      ):
																	_A									=       list(__A      )
												elif not isinstance(__A						,   __A      ):
																	raise TypeError(
																	    '''binary_search_delete() only accepts either a list, range or str'''      )

												_A									=       0
												_A									=       len(__A      ) - 1

												while low <= high:
																	_A									=       (low + high) // 2
																	if array[mid] == item:
																						array.pop(__A      )
																						return array
																	elif array[mid] < item:
																						_A									=       mid + 1
																	else:
																						_A									=       mid - 1
												raise ValueError(
												    '''Either the item is not in the array or the array was unsorted'''      )

							def 					__A       (     self:      int						,   __A:      list | str | range						,   __A:      int      )			-> list[int]:
												if isinstance(__A						,   (range, str)      ):
																	_A									=       list(__A      )
												elif not isinstance(__A						,   __A      ):
																	raise TypeError(
																	    '''binary_search_insert() only accepts either a list, range or str'''      )

												_A									=       0
												_A									=       len(__A      ) - 1

												while low <= high:
																	_A									=       (low + high) // 2
																	if array[mid] == index:
																						# If the item already exists in the array,
																						# insert it after the existing item
																						array.insert(mid + 1						,   __A      )
																						return array
																	elif array[mid] < index:
																						_A									=       mid + 1
																	else:
																						_A									=       mid - 1

        # If the item doesn't exist in the array, insert it at the appropriate position
												array.insert(__A						,   __A      )
												return array

							def 					__A       (     self:      Union[str, Any]						,   __A:      int						,   __A:      int      )			-> None:
												# Remove previous index
												if index in self.indexmap:
																	_A									=       self.indexmap[index]
																	if len(self.numbermap[n]      ) == 1:
																						del self.numbermap[n]
																	else:
																						_A									=       self.binary_search_delete(self.numbermap[n]						,   __A      )

        # Set new index
												_A									=       number

												# Number not seen before or empty so insert number value
												if number not in self.numbermap:
																	_A									=       [index]

												# Here we need to perform a binary search insertion in order to insert
												# The item in the correct place
												else:
																	_A									=       self.binary_search_insert(
																	    self.numbermap[number]						,   __A      )



							def 					__A       (     self:      List[Any]						,   __A:      int      )			-> int:
												return self.numbermap.get(__A						,   [-1]      )[0]


if __name__ == "__main__":
				import doctest

				doctest.testmod()



