import datasets

from .nmt_bleu import compute_bleu  # From: https://github.com/tensorflow/nmt/blob/master/nmt/scripts/bleu.py


_lowerCAmelCase       =		"\\n@INPROCEEDINGS{Papineni02bleu:a,\n    author = {Kishore Papineni and Salim Roukos and Todd Ward and Wei-jing Zhu},\n    title = {BLEU: a Method for Automatic Evaluation of Machine Translation},\n    booktitle = {},\n    year = {2002},\n    pages = {311--318}\n}\n@inproceedings{lin-och-2004-orange,\n    title = \"{ORANGE}: a Method for Evaluating Automatic Evaluation Metrics for Machine Translation\",\n    author = \"Lin, Chin-Yew  and\n      Och, Franz Josef\",\n    booktitle = \"{COLING} 2004: Proceedings of the 20th International Conference on Computational Linguistics\",\n    month = \"aug 23{--}aug 27\",\n    year = \"2004\",\n    address = \"Geneva, Switzerland\",\n    publisher = \"COLING\",\n    url = \"https://www.aclweb.org/anthology/C04-1072\",\n    pages = \"501--507\",\n}\n"

_lowerCAmelCase       =		"\\nBLEU (bilingual evaluation understudy) is an algorithm for evaluating the quality of text which has been machine-translated from one natural language to another.\nQuality is considered to be the correspondence between a machine's output and that of a human: \"the closer a machine translation is to a professional human translation,\nthe better it is\" – this is the central idea behind BLEU. BLEU was one of the first metrics to claim a high correlation with human judgements of quality, and\nremains one of the most popular automated and inexpensive metrics.\n\nScores are calculated for individual translated segments—generally sentences—by comparing them with a set of good quality reference translations.\nThose scores are then averaged over the whole corpus to reach an estimate of the translation's overall quality. Intelligibility or grammatical correctness\nare not taken into account[citation needed].\n\nBLEU's output is always a number between 0 and 1. This value indicates how similar the candidate text is to the reference texts, with values closer to 1\nrepresenting more similar texts. Few human translations will attain a score of 1, since this would indicate that the candidate is identical to one of the\nreference translations. For this reason, it is not necessary to attain a score of 1. Because there are more opportunities to match, adding additional\nreference translations will increase the BLEU score.\n"

_lowerCAmelCase       =		"\nComputes BLEU score of translated segments against one or more references.\nArgs:\n    predictions: list of translations to score.\n        Each translation should be tokenized into a list of tokens.\n    references: list of lists of references for each translation.\n        Each reference should be tokenized into a list of tokens.\n    max_order: Maximum n-gram order to use when computing BLEU score.\n    smooth: Whether or not to apply Lin et al. 2004 smoothing.\nReturns:\n    'bleu': bleu score,\n    'precisions': geometric mean of n-gram precisions,\n    'brevity_penalty': brevity penalty,\n    'length_ratio': ratio of lengths,\n    'translation_length': translation_length,\n    'reference_length': reference_length\nExamples:\n\n    >>> predictions = [\n    ...     [\"hello\", \"there\", \"general\", \"kenobi\"],                             # tokenized prediction of the first sample\n    ...     [\"foo\", \"bar\", \"foobar\"]                                             # tokenized prediction of the second sample\n    ... ]\n    >>> references = [\n    ...     [[\"hello\", \"there\", \"general\", \"kenobi\"], [\"hello\", \"there\", \"!\"]],  # tokenized references for the first sample (2 references)\n    ...     [[\"foo\", \"bar\", \"foobar\"]]                                           # tokenized references for the second sample (1 reference)\n    ... ]\n    >>> bleu = datasets.load_metric(\"bleu\")\n    >>> results = bleu.compute(predictions=predictions, references=references)\n    >>> print(results[\"bleu\"])\n    1.0\n"
@datasets.utils.file_utils.add_start_docstrings(_DESCRIPTION,  _KWARGS_DESCRIPTION )
class     lowerCAmelCase_     (       datasets.Metric ):







							def  UpperCamelCase_						(   self      :     Dict		):
												return datasets.MetricInfo(
												    description=_DESCRIPTION ,			citation=_CITATION ,			inputs_description=_KWARGS_DESCRIPTION ,			features=datasets.Features(
												        {
												            '''predictions''': datasets.Sequence(datasets.Value('''string''' ,			id='''token'''		) ,			id='''sequence'''		),
												            '''references''': datasets.Sequence(
												                datasets.Sequence(datasets.Value('''string''' ,			id='''token'''		) ,			id='''sequence'''		) ,			id='''references'''		),
												        }		) ,			codebase_urls=['''https://github.com/tensorflow/nmt/blob/master/nmt/scripts/bleu.py'''] ,			reference_urls=[
												        '''https://en.wikipedia.org/wiki/BLEU''',
												        '''https://towardsdatascience.com/evaluating-text-output-in-nlp-bleu-at-your-own-risk-e8609665a213''',
												    ] ,			)







							def  UpperCamelCase_						(   self      :     Optional[Any] ,			_A      :     Optional[Any] ,			_A      :     int ,			_A      :     int=4 ,			_A      :     Union[str, Any]=False		):
												_UpperCamelCase			     =     compute_bleu(
												    reference_corpus=_A ,			translation_corpus=_A ,			max_order=_A ,			smooth=_A		)
												((_UpperCamelCase)     ,    (_UpperCamelCase)     ,    (_UpperCamelCase)     ,    (_UpperCamelCase)     ,    (_UpperCamelCase)     ,    (_UpperCamelCase))			     =     score
												return {
												    "bleu": bleu,
												    "precisions": precisions,
												    "brevity_penalty": bp,
												    "length_ratio": ratio,
												    "translation_length": translation_length,
												    "reference_length": reference_length,
												}





"""simple docstring"""






from collections import Counter
from pathlib import Path
from typing import Optional, Tuple

import yaml



class     UpperCAmelCase    (	yaml.SafeLoader  ):



   def    __UpperCAmelCase    (       self    :	Tuple							,       __lowerCamelCase    :	List[str]				):



     """simple docstring"""
     _snake_case   	=      [self.constructed_objects[key_node] for key_node, _ in node.value]
     _snake_case   	=      [tuple(__lowerCamelCase				) if isinstance(__lowerCamelCase							,       __lowerCamelCase				) else key for key in keys]
     _snake_case   	=      Counter(__lowerCamelCase				)
     _snake_case   	=      [key for key in counter if counter[key] > 1]
     if duplicate_keys:
       raise TypeError(f"""Got duplicate yaml keys: {duplicate_keys}"""				)





   def    __UpperCAmelCase    (       self    :	str							,       __lowerCamelCase    :	Any							,       __lowerCamelCase    :	Optional[Any]=False				):



     """simple docstring"""
     _snake_case   	=      super().construct_mapping(__lowerCamelCase							,       deep=__lowerCamelCase				)
     self._check_no_duplicates_on_constructed_node(__lowerCamelCase				)
     return mapping




def 			snake_case		(		lowerCAmelCase_	)						->				Tuple[Optional[str], str]:
  _snake_case   	=      list(readme_content.splitlines()	)
  if full_content and full_content[0] == "---" and "---" in full_content[1:]:
    _snake_case   	=      full_content[1:].index('''---'''	) + 1
    _snake_case   	=      '''\n'''.join(full_content[1:sep_idx]	)
    return yamlblock, "\n".join(full_content[sep_idx + 1 :]	)

  return None, "\n".join(lowerCAmelCase_	)



class     UpperCAmelCase    (	__SCREAMING_SNAKE_CASE  ):
   # class attributes
   A__		:	int           =  {'''train_eval_index'''}  # train-eval-index in the YAML metadata



   @classmethod
   def    __UpperCAmelCase    (       cls    :	str							,       __lowerCamelCase    :	Path				):



     """simple docstring"""
     with open(__lowerCamelCase							,       encoding='''utf-8'''				) as readme_file:
       _snake_case	,     _snake_case   	=      _split_yaml_from_readme(readme_file.read()				)
     if yaml_string is not None:
       return cls.from_yaml_string(__lowerCamelCase				)
     else:
       return cls()



   def    __UpperCAmelCase    (       self    :	List[Any]							,       __lowerCamelCase    :	Path				):



     """simple docstring"""
     if path.exists():
       with open(__lowerCamelCase							,       encoding='''utf-8'''				) as readme_file:
         _snake_case   	=      readme_file.read()
     else:
       _snake_case   	=      None
     _snake_case   	=      self._to_readme(__lowerCamelCase				)
     with open(__lowerCamelCase							,       '''w'''							,       encoding='''utf-8'''				) as readme_file:
       readme_file.write(__lowerCamelCase				)



   def    __UpperCAmelCase    (       self    :	Union[str, Any]							,       __lowerCamelCase    :	Optional[str] = None				):



     """simple docstring"""
     if readme_content is not None:
       _snake_case	,     _snake_case   	=      _split_yaml_from_readme(__lowerCamelCase				)
       _snake_case   	=      '''---\n''' + self.to_yaml_string() + '''---\n''' + content
     else:
       _snake_case   	=      '''---\n''' + self.to_yaml_string() + '''---\n'''
     return full_content



   @classmethod
   def    __UpperCAmelCase    (       cls    :	Tuple							,       __lowerCamelCase    :	str				):



     """simple docstring"""
     _snake_case   	=      yaml.load(__lowerCamelCase							,       Loader=_NoDuplicateSafeLoader				) or {}

     # Convert the YAML keys to DatasetMetadata fields
     _snake_case   	=      {
         (key.replace('''-'''							,       '''_'''				) if key.replace('''-'''							,       '''_'''				) in cls._FIELDS_WITH_DASHES else key): value
         for key, value in metadata_dict.items()
     }
     return cls(**__lowerCamelCase				)





   def    __UpperCAmelCase    (       self    :	Dict				):



     """simple docstring"""
     return yaml.safe_dump(
         {
             (key.replace('''_'''							,       '''-'''				) if key in self._FIELDS_WITH_DASHES else key): value
             for key, value in self.items()
         }							,       sort_keys=__lowerCamelCase							,       allow_unicode=__lowerCamelCase							,       encoding='''utf-8'''							,       ).decode('''utf-8'''				)

snake_case   					=				{
    '''image-classification''': [],
    '''translation''': [],
    '''image-segmentation''': [],
    '''fill-mask''': [],
    '''automatic-speech-recognition''': [],
    '''token-classification''': [],
    '''sentence-similarity''': [],
    '''audio-classification''': [],
    '''question-answering''': [],
    '''summarization''': [],
    '''zero-shot-classification''': [],
    '''table-to-text''': [],
    '''feature-extraction''': [],
    '''other''': [],
    '''multiple-choice''': [],
    '''text-classification''': [],
    '''text-to-image''': [],
    '''text2text-generation''': [],
    '''zero-shot-image-classification''': [],
    '''tabular-classification''': [],
    '''tabular-regression''': [],
    '''image-to-image''': [],
    '''tabular-to-text''': [],
    '''unconditional-image-generation''': [],
    '''text-retrieval''': [],
    '''text-to-speech''': [],
    '''object-detection''': [],
    '''audio-to-audio''': [],
    '''text-generation''': [],
    '''conversational''': [],
    '''table-question-answering''': [],
    '''visual-question-answering''': [],
    '''image-to-text''': [],
    '''reinforcement-learning''': [],
    '''voice-activity-detection''': [],
    '''time-series-forecasting''': [],
    '''document-question-answering''': [],
}


if __name__ == "__main__":
     from argparse import ArgumentParser

     snake_case   					=				ArgumentParser(usage='''Validate the yaml metadata block of a README.md file.''')
     ap.add_argument('''readme_filepath''')
     snake_case   					=				ap.parse_args()

     snake_case   					=				Path(args.readme_filepath)
     snake_case   					=				DatasetMetadata.from_readme(readme_filepath)
     print(dataset_metadata)
     dataset_metadata.to_readme(readme_filepath)





