






"""simple docstring"""


import logging
import os
from dataclasses import dataclass, field
from functools import partial
from pathlib import Path
from tempfile import TemporaryDirectory
from typing import List, Optional

import faiss
import torch
from datasets import Features, Sequence, Value, load_dataset

from transformers import (
    DPRContextEncoder,
    DPRContextEncoderTokenizerFast,
    HfArgumentParser,
    RagRetriever,
    RagSequenceForGeneration,
    RagTokenizer,
)


lowercase_    					=					logging.getLogger(__name__)
torch.set_grad_enabled(False)
lowercase_    					=					'cuda' if torch.cuda.is_available() else 'cpu'



def  lowerCAmelCase    (   __UpperCamelCase		,	__UpperCamelCase=1_0_0		,	__UpperCamelCase=" "			):




  """simple docstring"""







  __A						      =			text.split(__UpperCamelCase			)
  return [character.join(text[i : i + n]			).strip() for i in range(0		,	len(__UpperCamelCase			)		,	__UpperCamelCase			)]



def  lowerCAmelCase    (   __UpperCamelCase			):




  """simple docstring"""







  __A      ,   __A						      =			[], []
  for title, text in zip(documents['''title''']		,	documents['''text''']			):
    if text is not None:
      for passage in split_text(__UpperCamelCase			):
        titles.append(title if title is not None else ''''''			)
        texts.append(__UpperCamelCase			)
  return {"title": titles, "text": texts}



def  lowerCAmelCase    (   __UpperCamelCase		,	__UpperCamelCase		,	__UpperCamelCase			):




  """simple docstring"""







  __A						      =			ctx_tokenizer(
      documents['''title''']		,	documents['''text''']		,	truncation=__UpperCamelCase		,	padding='''longest'''		,	return_tensors='''pt'''			)['''input_ids''']
  __A						      =			ctx_encoder(input_ids.to(device=__UpperCamelCase			)		,	return_dict=__UpperCamelCase			).pooler_output
  return {"embeddings": embeddings.detach().cpu().numpy()}



def  lowerCAmelCase    (   __UpperCamelCase		,	__UpperCamelCase		,	__UpperCamelCase		,	):




  """simple docstring"""







  logger.info('''Step 1 - Create the dataset'''			)
  ######################################

  # The dataset needed for RAG must have three columns:
  # - title (string): title of the document
  # - text (string): text of a passage of the document
  # - embeddings (array of dimension d): DPR representation of the passage

  # Let's say you have documents in tab-separated csv files with columns "title" and "text"
  assert os.path.isfile(rag_example_args.csv_path			), "Please provide a valid path to a csv file"

  # You can load a Dataset object this way
  __A						      =			load_dataset(
      '''csv'''		,	data_files=[rag_example_args.csv_path]		,	split='''train'''		,	delimiter='''\t'''		,	column_names=['''title''', '''text''']			)

  # More info about loading csv files in the documentation: https://huggingface.co/docs/datasets/loading_datasets.html?highlight=csv#csv-files

  # Then split the documents into passages of 100 words
  __A						      =			dataset.map(__UpperCamelCase		,	batched=__UpperCamelCase		,	num_proc=processing_args.num_proc			)

  # And compute the embeddings
  __A						      =			DPRContextEncoder.from_pretrained(rag_example_args.dpr_ctx_encoder_model_name			).to(device=__UpperCamelCase			)
  __A						      =			DPRContextEncoderTokenizerFast.from_pretrained(rag_example_args.dpr_ctx_encoder_model_name			)
  __A						      =			Features(
      {'''text''': Value('''string'''			), '''title''': Value('''string'''			), '''embeddings''': Sequence(Value('''float32'''			)			)}			)  # optional, save as float32 instead of float64 to save space
  __A						      =			dataset.map(
      partial(__UpperCamelCase		,	ctx_encoder=__UpperCamelCase		,	ctx_tokenizer=__UpperCamelCase			)		,	batched=__UpperCamelCase		,	batch_size=processing_args.batch_size		,	features=__UpperCamelCase		,	)

  # And finally save your dataset
  __A						      =			os.path.join(rag_example_args.output_dir		,	'''my_knowledge_dataset'''			)
  dataset.save_to_disk(__UpperCamelCase			)
  # from datasets import load_from_disk
  # dataset = load_from_disk(passages_path)  # to reload the dataset

  ######################################
  logger.info('''Step 2 - Index the dataset'''			)
  ######################################

  # Let's use the Faiss implementation of HNSW for fast approximate nearest neighbor search
  __A						      =			faiss.IndexHNSWFlat(index_hnsw_args.d		,	index_hnsw_args.m		,	faiss.METRIC_INNER_PRODUCT			)
  dataset.add_faiss_index('''embeddings'''		,	custom_index=__UpperCamelCase			)

  # And save the index
  __A						      =			os.path.join(rag_example_args.output_dir		,	'''my_knowledge_dataset_hnsw_index.faiss'''			)
  dataset.get_index('''embeddings'''			).save(__UpperCamelCase			)
  # dataset.load_faiss_index("embeddings", index_path)  # to reload the index

  ######################################
  logger.info('''Step 3 - Load RAG'''			)
  ######################################

  # Easy way to load the model
  __A						      =			RagRetriever.from_pretrained(
      rag_example_args.rag_model_name		,	index_name='''custom'''		,	indexed_dataset=__UpperCamelCase			)
  __A						      =			RagSequenceForGeneration.from_pretrained(rag_example_args.rag_model_name		,	retriever=__UpperCamelCase			)
  __A						      =			RagTokenizer.from_pretrained(rag_example_args.rag_model_name			)

  # For distributed fine-tuning you'll need to provide the paths instead, as the dataset and the index are loaded separately.
  # retriever = RagRetriever.from_pretrained(rag_model_name, index_name="custom", passages_path=passages_path, index_path=index_path)

  ######################################
  logger.info('''Step 4 - Have fun'''			)
  ######################################

  __A						      =			rag_example_args.question or '''What does Moses\' rod turn into ?'''
  __A						      =			tokenizer.question_encoder(__UpperCamelCase		,	return_tensors='''pt'''			)['''input_ids''']
  __A						      =			model.generate(__UpperCamelCase			)
  __A						      =			tokenizer.batch_decode(__UpperCamelCase		,	skip_special_tokens=__UpperCamelCase			)[0]
  logger.info('''Q: ''' + question			)
  logger.info('''A: ''' + generated_string			)


@dataclass
class  snake_case		:


   '''simple docstring'''

   A_						:     str									=			field(
       default=str(Path(_lowerCAmelCase						).parent / "test_data" / "my_knowledge_dataset.csv"						)       ,     metadata={"help": "Path to a tab-separated csv file with columns 'title' and 'text'"}       ,     )
   A_						:     Optional[str]									=			field(
       default=_lowerCAmelCase       ,     metadata={"help": "Question that is passed as input to RAG. Default is 'What does Moses' rod turn into ?'."}       ,     )
   A_						:     str									=			field(
       default="facebook/rag-sequence-nq"       ,     metadata={"help": "The RAG model to use. Either 'facebook/rag-sequence-nq' or 'facebook/rag-token-nq'"}       ,     )
   A_						:     str									=			field(
       default="facebook/dpr-ctx_encoder-multiset-base"       ,     metadata={
           "help": (
               "The DPR context encoder model to use. Either 'facebook/dpr-ctx_encoder-single-nq-base' or"
               " 'facebook/dpr-ctx_encoder-multiset-base'"
           )
       }       ,     )
   A_						:     Optional[str]									=			field(
       default=_lowerCAmelCase       ,     metadata={"help": "Path to a directory where the dataset passages and the index will be saved"}       ,     )





@dataclass
class  snake_case		:


   '''simple docstring'''

   A_						:     Optional[int]									=			field(
       default=_lowerCAmelCase       ,     metadata={
           "help": "The number of processes to use to split the documents into passages. Default is single process."
       }       ,     )
   A_						:     int									=			field(
       default=16       ,     metadata={
           "help": "The batch size to use when computing the passages embeddings using the DPR context encoder."
       }       ,     )





@dataclass
class  snake_case		:


   '''simple docstring'''

   A_						:     int									=			field(
       default=768       ,     metadata={"help": "The dimension of the embeddings to pass to the HNSW Faiss index."}       ,     )
   A_						:     int									=			field(
       default=128       ,     metadata={
           "help": (
               "The number of bi-directional links created for every new element during the HNSW index construction."
           )
       }       ,     )


if __name__ == "__main__":
       logging.basicConfig(level=logging.WARNING)
       logger.setLevel(logging.INFO)

       lowercase_    					=					HfArgumentParser((RagExampleArguments, ProcessingArguments, IndexHnswArguments))
       lowercase_					,		lowercase_					,		lowercase_    					=					parser.parse_args_into_dataclasses()
       with TemporaryDirectory() as tmp_dir:
              lowercase_    					=					rag_example_args.output_dir or tmp_dir
              main(rag_example_args, processing_args, index_hnsw_args)












"""simple docstring"""


import itertools
from pathlib import Path



def  lowerCAmelCase    (   __UpperCamelCase			):




  """simple docstring"""







  __A						      =			[tuple(__UpperCamelCase			) for login in logins]

  __A						      =			{char for login in split_logins for char in login}

  for permutation in itertools.permutations(__UpperCamelCase			):
    __A						      =			True
    for login in logins:
      if not (
          permutation.index(login[0]			)
          < permutation.index(login[1]			)
          < permutation.index(login[2]			)
      ):
        __A						      =			False
        break

    if satisfied:
      return int(''''''.join(__UpperCamelCase			)			)

  raise Exception('''Unable to find the secret passcode'''			)



def  lowerCAmelCase    (   __UpperCamelCase = "keylog.txt"			):




  """simple docstring"""







  __A						      =			Path(__UpperCamelCase			).parent.joinpath(__UpperCamelCase			).read_text().splitlines()

  return find_secret_passcode(__UpperCamelCase			)


if __name__ == "__main__":
       print(F'''{solution() = }''')




