






import os

from bleurt import score  # From: git+https://github.com/google-research/bleurt.git

import datasets


_a    :   Tuple        =			datasets.logging.get_logger(__name__)


_a    :   Union[str, Any]        =			"""\
@inproceedings{bleurt,
  title={BLEURT: Learning Robust Metrics for Text Generation},
  author={Thibault Sellam and Dipanjan Das and Ankur P. Parikh},
  booktitle={ACL},
  year={2020},
  url={https://arxiv.org/abs/2004.04696}
}
"""

_a    :   int        =			"""\
BLEURT a learnt evaluation metric for Natural Language Generation. It is built using multiple phases of transfer learning starting from a pretrained BERT model (Devlin et al. 2018)
and then employing another pre-training phrase using synthetic data. Finally it is trained on WMT human annotations. You may run BLEURT out-of-the-box or fine-tune
it for your specific application (the latter is expected to perform better).

See the project's README at https://github.com/google-research/bleurt#readme for more information.
"""

_a    :   Any        =			"""
BLEURT score.

Args:
    `predictions` (list of str): prediction/candidate sentences
    `references` (list of str): reference sentences
    `checkpoint` BLEURT checkpoint. Will default to BLEURT-tiny if None.

Returns:
    'scores': List of scores.
Examples:

    >>> predictions = [\"hello there\", \"general kenobi\"]
    >>> references = [\"hello there\", \"general kenobi\"]
    >>> bleurt = datasets.load_metric(\"bleurt\")
    >>> results = bleurt.compute(predictions=predictions, references=references)
    >>> print([round(v, 2) for v in results[\"scores\"]])
    [1.03, 1.04]
"""

_a    :   List[str]        =			{
    """bleurt-tiny-128""": """https://storage.googleapis.com/bleurt-oss/bleurt-tiny-128.zip""",
    """bleurt-tiny-512""": """https://storage.googleapis.com/bleurt-oss/bleurt-tiny-512.zip""",
    """bleurt-base-128""": """https://storage.googleapis.com/bleurt-oss/bleurt-base-128.zip""",
    """bleurt-base-512""": """https://storage.googleapis.com/bleurt-oss/bleurt-base-512.zip""",
    """bleurt-large-128""": """https://storage.googleapis.com/bleurt-oss/bleurt-large-128.zip""",
    """bleurt-large-512""": """https://storage.googleapis.com/bleurt-oss/bleurt-large-512.zip""",
    """BLEURT-20-D3""": """https://storage.googleapis.com/bleurt-oss-21/BLEURT-20-D3.zip""",
    """BLEURT-20-D6""": """https://storage.googleapis.com/bleurt-oss-21/BLEURT-20-D6.zip""",
    """BLEURT-20-D12""": """https://storage.googleapis.com/bleurt-oss-21/BLEURT-20-D12.zip""",
    """BLEURT-20""": """https://storage.googleapis.com/bleurt-oss-21/BLEURT-20.zip""",
}







@datasets.utils.file_utils.add_start_docstrings(_DESCRIPTION				,							_KWARGS_DESCRIPTION		)
class 	_UpperCAmelCase  (  datasets.Metric		):




      """simple docstring"""



      def 			snake_case_      (   self		):



          '''simple docstring'''
          return datasets.MetricInfo(
              description=_DESCRIPTION    ,	citation=_CITATION    ,	homepage="https://github.com/google-research/bleurt"    ,	inputs_description=_KWARGS_DESCRIPTION    ,	features=datasets.Features(
                  {
                      "predictions": datasets.Value("string"    ,	id="sequence"		),
                      "references": datasets.Value("string"    ,	id="sequence"		),
                  }		)    ,	codebase_urls=["https://github.com/google-research/bleurt"]    ,	reference_urls=["https://github.com/google-research/bleurt", "https://arxiv.org/abs/2004.04696"]    ,	)
      def 			snake_case_      (   self    ,	_lowerCAmelCase		):



          '''simple docstring'''
          # check that config name specifies a valid BLEURT model
          if self.config_name == "default":
              logger.warning(
                  "Using default BLEURT-Base checkpoint for sequence maximum length 128. "
                  "You can use a bigger model for better results with e.g.: datasets.load_metric('bleurt', 'bleurt-large-512')."		)
              lowerCAmelCase__   :Optional[int]      							=				"bleurt-base-128"

          if self.config_name.lower() in CHECKPOINT_URLS:
              lowerCAmelCase__   :int      							=				self.config_name.lower()

          elif self.config_name.upper() in CHECKPOINT_URLS:
              lowerCAmelCase__   :Optional[int]      							=				self.config_name.upper()

          else:
              raise KeyError(
                  f'''{self.config_name} model not found. You should supply the name of a model checkpoint for bleurt in {CHECKPOINT_URLS.keys()}'''		)

          # download the model checkpoint specified by self.config_name and set up the scorer
          lowerCAmelCase__   :Tuple      							=				dl_manager.download_and_extract(CHECKPOINT_URLS[checkpoint_name]		)
          lowerCAmelCase__   :Dict      							=				score.BleurtScorer(os.path.join(_lowerCAmelCase    ,	_lowerCAmelCase		)		)



      def 			snake_case_      (   self    ,	_lowerCAmelCase    ,	_lowerCAmelCase		):



          '''simple docstring'''
          lowerCAmelCase__   :Union[str, Any]      							=				self.scorer.score(references=_lowerCAmelCase    ,	candidates=_lowerCAmelCase		)
          return {"scores": scores}











import tempfile

import numpy as np
import torch
from transformers import AutoTokenizer, TaEncoderModel

from diffusers import DDPMScheduler, UNetaDConditionModel
from diffusers.models.attention_processor import AttnAddedKVProcessor
from diffusers.pipelines.deepfloyd_if import IFWatermarker
from diffusers.utils.testing_utils import torch_device

from ..test_pipelines_common import to_np







class 	_UpperCAmelCase  :




      """simple docstring"""



      def 			snake_case_      (   self		):



          '''simple docstring'''
          torch.manual_seed(0		)
          lowerCAmelCase__   :List[str]      							=				TaEncoderModel.from_pretrained("hf-internal-testing/tiny-random-t5"		)

          torch.manual_seed(0		)
          lowerCAmelCase__   :List[Any]      							=				AutoTokenizer.from_pretrained("hf-internal-testing/tiny-random-t5"		)

          torch.manual_seed(0		)
          lowerCAmelCase__   :Tuple      							=				UNetaDConditionModel(
              sample_size=32    ,	layers_per_block=1    ,	block_out_channels=[32, 64]    ,	down_block_types=[
                  "ResnetDownsampleBlock2D",
                  "SimpleCrossAttnDownBlock2D",
              ]    ,	mid_block_type="UNetMidBlock2DSimpleCrossAttn"    ,	up_block_types=["SimpleCrossAttnUpBlock2D", "ResnetUpsampleBlock2D"]    ,	in_channels=3    ,	out_channels=6    ,	cross_attention_dim=32    ,	encoder_hid_dim=32    ,	attention_head_dim=8    ,	addition_embed_type="text"    ,	addition_embed_type_num_heads=2    ,	cross_attention_norm="group_norm"    ,	resnet_time_scale_shift="scale_shift"    ,	act_fn="gelu"    ,	)
          unet.set_attn_processor(AttnAddedKVProcessor()		)  # For reproducibility tests

          torch.manual_seed(0		)
          lowerCAmelCase__   :Dict      							=				DDPMScheduler(
              num_train_timesteps=1_000    ,	beta_schedule="squaredcos_cap_v2"    ,	beta_start=0.0001    ,	beta_end=0.02    ,	thresholding=_lowerCAmelCase    ,	dynamic_thresholding_ratio=0.95    ,	sample_max_value=1.0    ,	prediction_type="epsilon"    ,	variance_type="learned_range"    ,	)

          torch.manual_seed(0		)
          lowerCAmelCase__   :List[str]      							=				IFWatermarker()

          return {
              "text_encoder": text_encoder,
              "tokenizer": tokenizer,
              "unet": unet,
              "scheduler": scheduler,
              "watermarker": watermarker,
              "safety_checker": None,
              "feature_extractor": None,
          }
      def 			snake_case_      (   self		):



          '''simple docstring'''
          torch.manual_seed(0		)
          lowerCAmelCase__   :int      							=				TaEncoderModel.from_pretrained("hf-internal-testing/tiny-random-t5"		)

          torch.manual_seed(0		)
          lowerCAmelCase__   :Dict      							=				AutoTokenizer.from_pretrained("hf-internal-testing/tiny-random-t5"		)

          torch.manual_seed(0		)
          lowerCAmelCase__   :Union[str, Any]      							=				UNetaDConditionModel(
              sample_size=32    ,	layers_per_block=[1, 2]    ,	block_out_channels=[32, 64]    ,	down_block_types=[
                  "ResnetDownsampleBlock2D",
                  "SimpleCrossAttnDownBlock2D",
              ]    ,	mid_block_type="UNetMidBlock2DSimpleCrossAttn"    ,	up_block_types=["SimpleCrossAttnUpBlock2D", "ResnetUpsampleBlock2D"]    ,	in_channels=6    ,	out_channels=6    ,	cross_attention_dim=32    ,	encoder_hid_dim=32    ,	attention_head_dim=8    ,	addition_embed_type="text"    ,	addition_embed_type_num_heads=2    ,	cross_attention_norm="group_norm"    ,	resnet_time_scale_shift="scale_shift"    ,	act_fn="gelu"    ,	class_embed_type="timestep"    ,	mid_block_scale_factor=1.414    ,	time_embedding_act_fn="gelu"    ,	time_embedding_dim=32    ,	)
          unet.set_attn_processor(AttnAddedKVProcessor()		)  # For reproducibility tests

          torch.manual_seed(0		)
          lowerCAmelCase__   :Tuple      							=				DDPMScheduler(
              num_train_timesteps=1_000    ,	beta_schedule="squaredcos_cap_v2"    ,	beta_start=0.0001    ,	beta_end=0.02    ,	thresholding=_lowerCAmelCase    ,	dynamic_thresholding_ratio=0.95    ,	sample_max_value=1.0    ,	prediction_type="epsilon"    ,	variance_type="learned_range"    ,	)

          torch.manual_seed(0		)
          lowerCAmelCase__   :str      							=				DDPMScheduler(
              num_train_timesteps=1_000    ,	beta_schedule="squaredcos_cap_v2"    ,	beta_start=0.0001    ,	beta_end=0.02    ,	)

          torch.manual_seed(0		)
          lowerCAmelCase__   :List[str]      							=				IFWatermarker()

          return {
              "text_encoder": text_encoder,
              "tokenizer": tokenizer,
              "unet": unet,
              "scheduler": scheduler,
              "image_noising_scheduler": image_noising_scheduler,
              "watermarker": watermarker,
              "safety_checker": None,
              "feature_extractor": None,
          }
      def 			snake_case_      (   self		):



          '''simple docstring'''
          lowerCAmelCase__   :Optional[Any]      							=				self.get_dummy_components()
          lowerCAmelCase__   :Any      							=				self.pipeline_class(**_lowerCAmelCase		)
          pipe.to(_lowerCAmelCase		)
          pipe.set_progress_bar_config(disable=_lowerCAmelCase		)

          lowerCAmelCase__   :int      							=				self.get_dummy_inputs(_lowerCAmelCase		)

          lowerCAmelCase__   :Optional[int]      							=				inputs["prompt"]
          lowerCAmelCase__   :Tuple      							=				inputs["generator"]
          lowerCAmelCase__   :List[Any]      							=				inputs["num_inference_steps"]
          lowerCAmelCase__   :Tuple      							=				inputs["output_type"]

          if "image" in inputs:
              lowerCAmelCase__   :Dict      							=				inputs["image"]
          else:
              lowerCAmelCase__   :Union[str, Any]      							=				None

          if "mask_image" in inputs:
              lowerCAmelCase__   :int      							=				inputs["mask_image"]
          else:
              lowerCAmelCase__   :str      							=				None

          if "original_image" in inputs:
              lowerCAmelCase__   :List[Any]      							=				inputs["original_image"]
          else:
              lowerCAmelCase__   :Dict      							=				None

          lowerCAmelCase__							,lowerCAmelCase__   :int      							=				pipe.encode_prompt(_lowerCAmelCase		)

          # inputs with prompt converted to embeddings
          lowerCAmelCase__   :Optional[Any]      							=				{
              "prompt_embeds": prompt_embeds,
              "negative_prompt_embeds": negative_prompt_embeds,
              "generator": generator,
              "num_inference_steps": num_inference_steps,
              "output_type": output_type,
          }

          if image is not None:
              lowerCAmelCase__   :List[Any]      							=				image

          if mask_image is not None:
              lowerCAmelCase__   :Any      							=				mask_image

          if original_image is not None:
              lowerCAmelCase__   :Tuple      							=				original_image

          # set all optional components to None
          for optional_component in pipe._optional_components:
              setattr(_lowerCAmelCase    ,	_lowerCAmelCase    ,	_lowerCAmelCase		)

          lowerCAmelCase__   :Optional[int]      							=				pipe(**_lowerCAmelCase		)[0]

          with tempfile.TemporaryDirectory() as tmpdir:
              pipe.save_pretrained(_lowerCAmelCase		)
              lowerCAmelCase__   :str      							=				self.pipeline_class.from_pretrained(_lowerCAmelCase		)
              pipe_loaded.to(_lowerCAmelCase		)
              pipe_loaded.set_progress_bar_config(disable=_lowerCAmelCase		)

          pipe_loaded.unet.set_attn_processor(AttnAddedKVProcessor()		)  # For reproducibility tests

          for optional_component in pipe._optional_components:
              self.assertTrue(
                  getattr(_lowerCAmelCase    ,	_lowerCAmelCase		) is None    ,	f'''`{optional_component}` did not stay set to None after loading.'''    ,	)

          lowerCAmelCase__   :Any      							=				self.get_dummy_inputs(_lowerCAmelCase		)

          lowerCAmelCase__   :Tuple      							=				inputs["generator"]
          lowerCAmelCase__   :Union[str, Any]      							=				inputs["num_inference_steps"]
          lowerCAmelCase__   :str      							=				inputs["output_type"]

          # inputs with prompt converted to embeddings
          lowerCAmelCase__   :Union[str, Any]      							=				{
              "prompt_embeds": prompt_embeds,
              "negative_prompt_embeds": negative_prompt_embeds,
              "generator": generator,
              "num_inference_steps": num_inference_steps,
              "output_type": output_type,
          }

          if image is not None:
              lowerCAmelCase__   :Tuple      							=				image

          if mask_image is not None:
              lowerCAmelCase__   :str      							=				mask_image

          if original_image is not None:
              lowerCAmelCase__   :Union[str, Any]      							=				original_image

          lowerCAmelCase__   :List[Any]      							=				pipe_loaded(**_lowerCAmelCase		)[0]

          lowerCAmelCase__   :Dict      							=				np.abs(to_np(_lowerCAmelCase		) - to_np(_lowerCAmelCase		)		).max()
          self.assertLess(_lowerCAmelCase    ,	1e-4		)



      def 			snake_case_      (   self		):



          '''simple docstring'''
          lowerCAmelCase__   :Tuple      							=				self.get_dummy_components()
          lowerCAmelCase__   :Optional[int]      							=				self.pipeline_class(**_lowerCAmelCase		)
          pipe.to(_lowerCAmelCase		)
          pipe.set_progress_bar_config(disable=_lowerCAmelCase		)

          lowerCAmelCase__   :Optional[int]      							=				self.get_dummy_inputs(_lowerCAmelCase		)
          lowerCAmelCase__   :List[str]      							=				pipe(**_lowerCAmelCase		)[0]

          with tempfile.TemporaryDirectory() as tmpdir:
              pipe.save_pretrained(_lowerCAmelCase		)
              lowerCAmelCase__   :Dict      							=				self.pipeline_class.from_pretrained(_lowerCAmelCase		)
              pipe_loaded.to(_lowerCAmelCase		)
              pipe_loaded.set_progress_bar_config(disable=_lowerCAmelCase		)

          pipe_loaded.unet.set_attn_processor(AttnAddedKVProcessor()		)  # For reproducibility tests

          lowerCAmelCase__   :Optional[int]      							=				self.get_dummy_inputs(_lowerCAmelCase		)
          lowerCAmelCase__   :List[Any]      							=				pipe_loaded(**_lowerCAmelCase		)[0]

          lowerCAmelCase__   :str      							=				np.abs(to_np(_lowerCAmelCase		) - to_np(_lowerCAmelCase		)		).max()
          self.assertLess(_lowerCAmelCase    ,	1e-4		)



