



"""simple docstring"""






import os
from functools import partial
from glob import glob

import faiss
from datasets import Features, Sequence, Value, concatenate_datasets, load_dataset, load_from_disk

from transformers import DPRContextEncoder, DPRContextEncoderTokenizerFast
def      A      (			_A,     _A=100,     _A=" "							):




					"""simple docstring"""
					snake_case_						:Optional[int]								=						text.split(_A							)
					return [character.join(text[i : i + n]							).strip() for i in range(0,     len(_A							),     _A							)]
def      A      (			_A							):




					"""simple docstring"""
					snake_case_	,  snake_case_						:List[str]								=						[], []
					for title, text in zip(documents["title"],     documents["text"]							):
										if text is not None:
															for passage in split_text(_A							):
																				titles.append(title if title is not None else ""							)
																				texts.append(_A							)
					return {"title": titles, "text": texts}
def      A      (			_A,     _A,     _A,     _A,     _A,     _A							):




					"""simple docstring"""
					snake_case_						:str								=						load_dataset(
					    "csv",     data_files=[csv_path],     split="train",     delimiter="\t",     column_names=["title", "text"]							)
					snake_case_						:Any								=						kb_dataset.map(
					    _A,     batched=_A,     num_proc=1							)  # if you want you can load already splitted csv.
					snake_case_						:Any								=						[kb_dataset.shard(_A,     _A,     contiguous=_A							) for i in range(_A							)]
					snake_case_						:Any								=						kb_list[process_num]

					snake_case_						:Optional[int]								=						"data_" + str(_A							)
					snake_case_						:List[str]								=						os.path.join(_A,     _A							)

					snake_case_						:Dict								=						DPRContextEncoderTokenizerFast.from_pretrained("facebook/dpr-ctx_encoder-multiset-base"							)
					snake_case_						:int								=						ctx_encoder.to(device=_A							)

					def embed(
					    _A,     _A,     _A,     _A							) -> dict:
										snake_case_						:Tuple								=						ctx_tokenizer(
										    documents["title"],     documents["text"],     truncation=_A,     padding="longest",     return_tensors="pt"							)["input_ids"]
										snake_case_						:Any								=						ctx_encoder(input_ids.to(device=_A							),     return_dict=_A							).pooler_output
										return {"embeddings": embeddings.detach().cpu().numpy()}

					snake_case_						:Optional[Any]								=						Features(
					    {"text": Value("string"							), "title": Value("string"							), "embeddings": Sequence(Value("float32"							)							)}							)  # optional, save as float32 instead of float64 to save space

					snake_case_						:Tuple								=						data_shrad.map(
					    partial(_A,     ctx_encoder=_A,     ctx_tokenizer=_A,     device=_A							),     batched=_A,     batch_size=16,     features=_A,     )
					dataset.save_to_disk(_A							)
def      A      (			_A,     _A							):




					"""simple docstring"""
					snake_case_						:Any								=						[]

					for shard_address in glob(str(_A							) + "/*/"							):
										data_shard_list.append(load_from_disk(_A							)							)

					snake_case_						:Any								=						concatenate_datasets(_A							)
					faiss.omp_set_num_threads(96							)

					snake_case_						:Optional[int]								=						faiss.IndexHNSWFlat(768,     128,     faiss.METRIC_INNER_PRODUCT							)
					concat.add_faiss_index("embeddings",     custom_index=_A							)
					concat.get_index("embeddings"							).save(
					    _A							)  # since we load the index in to memory,we can directly update the index in the disk






"""simple docstring"""






def      A      (			_A,     _A							):




					"""simple docstring"""
					if not isinstance(_A,     _A							):
										raise TypeError("plaintext must be a string"							)
					if not isinstance(_A,     _A							):
										raise TypeError("key must be a string"							)

					if not plaintext:
										raise ValueError("plaintext is empty"							)
					if not key:
										raise ValueError("key is empty"							)

					key += plaintext
					snake_case_						:Optional[int]								=						plaintext.lower()
					snake_case_						:Union[str, Any]								=						key.lower()
					snake_case_						:Any								=						0
					snake_case_						:str								=						0
					snake_case_						:Union[str, Any]								=						""
					while plaintext_iterator < len(_A							):
										if (
										    ord(plaintext[plaintext_iterator]							) < 97
										    or ord(plaintext[plaintext_iterator]							) > 122
										):
															ciphertext += plaintext[plaintext_iterator]
															plaintext_iterator += 1
										elif ord(key[key_iterator]							) < 97 or ord(key[key_iterator]							) > 122:
															key_iterator += 1
										else:
															ciphertext += chr(
															    (
															        (ord(plaintext[plaintext_iterator]							) - 97 + ord(key[key_iterator]							))
															        - 97
															    )
															    % 26
															    + 97							)
															key_iterator += 1
															plaintext_iterator += 1
					return ciphertext
def      A      (			_A,     _A							):




					"""simple docstring"""
					if not isinstance(_A,     _A							):
										raise TypeError("ciphertext must be a string"							)
					if not isinstance(_A,     _A							):
										raise TypeError("key must be a string"							)

					if not ciphertext:
										raise ValueError("ciphertext is empty"							)
					if not key:
										raise ValueError("key is empty"							)

					snake_case_						:Tuple								=						key.lower()
					snake_case_						:Tuple								=						0
					snake_case_						:int								=						0
					snake_case_						:int								=						""
					while ciphertext_iterator < len(_A							):
										if (
										    ord(ciphertext[ciphertext_iterator]							) < 97
										    or ord(ciphertext[ciphertext_iterator]							) > 122
										):
															plaintext += ciphertext[ciphertext_iterator]
										else:
															plaintext += chr(
															    (ord(ciphertext[ciphertext_iterator]							) - ord(key[key_iterator]							)) % 26
															    + 97							)
															key += chr(
															    (ord(ciphertext[ciphertext_iterator]							) - ord(key[key_iterator]							)) % 26
															    + 97							)
															key_iterator += 1
										ciphertext_iterator += 1
					return plaintext


if __name__ == "__main__":
				import doctest

				doctest.testmod()
				__UpperCAmelCase      :      Dict   					=					int(input('Type 1 to encrypt or 2 to decrypt:'))
				if operation == 1:
								__UpperCAmelCase      :      List[str]   					=					input('Typeplaintext to be encrypted:\n')
								__UpperCAmelCase      :      Optional[int]   					=					input('Type the key:\n')
								print(encrypt(plaintext, key))
				elif operation == 2:
								__UpperCAmelCase      :      List[Any]   					=					input('Type the ciphertext to be decrypted:\n')
								__UpperCAmelCase      :      Dict   					=					input('Type the key:\n')
								print(decrypt(ciphertext, key))
				decrypt('jsqqs avvwo', 'coffee')

