import datasets

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


lowerCamelCase_    :		Optional[int]							=	'\\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_    :		Union[str, Any]							=	'\\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_    :		Tuple							=	'\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 						a__      (       datasets.Metric		):



			def __SCREAMING_SNAKE_CASE							(						self   )			->   Union[str, Any]:
								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 __SCREAMING_SNAKE_CASE							(						self				,						UpperCAmelCase				,						UpperCAmelCase				,						UpperCAmelCase=4				,						UpperCAmelCase=False   )			->   str:
								__a		 =       compute_bleu(
								    reference_corpus=_lowercase				,						translation_corpus=_lowercase				,						max_order=_lowercase				,						smooth=_lowercase   )
								((__a) ,				(__a) ,				(__a) ,				(__a) ,				(__a) ,				(__a))		 =       score
								return {
								    "bleu": bleu,
								    "precisions": precisions,
								    "brevity_penalty": bp,
								    "length_ratio": ratio,
								    "translation_length": translation_length,
								    "reference_length": reference_length,
								}





import copy
import json
import os
import tempfile

from transformers import is_torch_available

from .test_configuration_utils import config_common_kwargs


class 						a__							(       __snake_case		):



			def __init__(						self				,						UpperCAmelCase				,						UpperCAmelCase=None				,						UpperCAmelCase=True				,						UpperCAmelCase=None				,						**UpperCAmelCase   )			->   List[Any]:
								__a		 =       parent
								__a		 =       config_class
								__a		 =       has_text_modality
								__a		 =       kwargs
								__a		 =       common_properties



			def __SCREAMING_SNAKE_CASE							(						self   )			->   List[str]:
								__a		 =       self.config_class(**self.inputs_dict   )
								__a		 =       (
								    ['hidden_size', 'num_attention_heads', 'num_hidden_layers']
								    if self.common_properties is None
								    else self.common_properties
								)

								# Add common fields for text models
								if self.has_text_modality:
													common_properties.extend(['vocab_size']   )

								# Test that config has the common properties as getters
								for prop in common_properties:
													self.parent.assertTrue(hasattr(UpperCAmelCase				,						UpperCAmelCase   )				,						msg=f'''`{prop}` does not exist'''   )

								# Test that config has the common properties as setter
								for idx, name in enumerate(UpperCAmelCase   ):
													try:
																		setattr(UpperCAmelCase				,						UpperCAmelCase				,						UpperCAmelCase   )
																		self.parent.assertEqual(
																		    getattr(UpperCAmelCase				,						UpperCAmelCase   )				,						UpperCAmelCase				,						msg=f'''`{name} value {idx} expected, but was {getattr(UpperCAmelCase				,						UpperCAmelCase   )}'''   )
													except NotImplementedError:
																		# Some models might not be able to implement setters for common_properties
																		# In that case, a NotImplementedError is raised
																		pass

        # Test if config class can be called with Config(prop_name=..)
								for idx, name in enumerate(UpperCAmelCase   ):
													try:
																		__a		 =       self.config_class(**{name: idx}   )
																		self.parent.assertEqual(
																		    getattr(UpperCAmelCase				,						UpperCAmelCase   )				,						UpperCAmelCase				,						msg=f'''`{name} value {idx} expected, but was {getattr(UpperCAmelCase				,						UpperCAmelCase   )}'''   )
													except NotImplementedError:
																		# Some models might not be able to implement setters for common_properties
																		# In that case, a NotImplementedError is raised
																		pass



			def __SCREAMING_SNAKE_CASE							(						self   )			->   Tuple:
								__a		 =       self.config_class(**self.inputs_dict   )
								__a		 =       json.loads(config.to_json_string()   )
								for key, value in self.inputs_dict.items():
													self.parent.assertEqual(obj[key]				,						UpperCAmelCase   )



			def __SCREAMING_SNAKE_CASE							(						self   )			->   Tuple:
								__a		 =       self.config_class(**self.inputs_dict   )

								with tempfile.TemporaryDirectory() as tmpdirname:
													__a		 =       os.path.join(UpperCAmelCase				,						'config.json'   )
													config_first.to_json_file(UpperCAmelCase   )
													__a		 =       self.config_class.from_json_file(UpperCAmelCase   )

								self.parent.assertEqual(config_second.to_dict()				,						config_first.to_dict()   )



			def __SCREAMING_SNAKE_CASE							(						self   )			->   Tuple:
								__a		 =       self.config_class(**self.inputs_dict   )

								with tempfile.TemporaryDirectory() as tmpdirname:
													config_first.save_pretrained(UpperCAmelCase   )
													__a		 =       self.config_class.from_pretrained(UpperCAmelCase   )

								self.parent.assertEqual(config_second.to_dict()				,						config_first.to_dict()   )



			def __SCREAMING_SNAKE_CASE							(						self   )			->   str:
								__a		 =       self.config_class(**self.inputs_dict   )

								__a		 =       'test'
								with tempfile.TemporaryDirectory() as tmpdirname:
													__a		 =       os.path.join(UpperCAmelCase				,						UpperCAmelCase   )
													config_first.save_pretrained(UpperCAmelCase   )
													__a		 =       self.config_class.from_pretrained(UpperCAmelCase				,						subfolder=UpperCAmelCase   )

								self.parent.assertEqual(config_second.to_dict()				,						config_first.to_dict()   )



			def __SCREAMING_SNAKE_CASE							(						self   )			->   Union[str, Any]:
								__a		 =       self.config_class(**self.inputs_dict				,						num_labels=5   )
								self.parent.assertEqual(len(config.idalabel   )				,						5   )
								self.parent.assertEqual(len(config.labelaid   )				,						5   )

								__a		 =       3
								self.parent.assertEqual(len(config.idalabel   )				,						3   )
								self.parent.assertEqual(len(config.labelaid   )				,						3   )



			def __SCREAMING_SNAKE_CASE							(						self   )			->   List[str]:
								if self.config_class.is_composition:
													return
								__a		 =       self.config_class()
								self.parent.assertIsNotNone(UpperCAmelCase   )



			def __SCREAMING_SNAKE_CASE							(						self   )			->   Union[str, Any]:
								__a		 =       copy.deepcopy(UpperCAmelCase   )
								__a		 =       self.config_class(**UpperCAmelCase   )
								__a		 =       []
								for key, value in config_common_kwargs.items():
													if key == "torch_dtype":
																		if not is_torch_available():
																							continue
																		else:
																							import torch

																							if config.torch_dtype != torch.floataa:
																												wrong_values.append(('torch_dtype', config.torch_dtype, torch.floataa)   )
													elif getattr(UpperCAmelCase				,						UpperCAmelCase   ) != value:
																		wrong_values.append((key, getattr(UpperCAmelCase				,						UpperCAmelCase   ), value)   )

								if len(UpperCAmelCase   ) > 0:
													__a		 =       '\n'.join([f'''- {v[0]}: got {v[1]} instead of {v[2]}''' for v in wrong_values]   )
													raise ValueError(f'''The following keys were not properly set in the config:\n{errors}'''   )







			def __SCREAMING_SNAKE_CASE							(						self   )			->   Optional[Any]:
								self.create_and_test_config_common_properties()
								self.create_and_test_config_to_json_string()
								self.create_and_test_config_to_json_file()
								self.create_and_test_config_from_and_save_pretrained()
								self.create_and_test_config_from_and_save_pretrained_subfolder()
								self.create_and_test_config_with_num_labels()
								self.check_config_can_be_init_without_params()
								self.check_config_arguments_init()




