from dataclasses import dataclass

import numpy as np
import PIL.Image

from ...utils import BaseOutput, is_flax_available


@dataclass
class StableDiffusionPipelineOutput(BaseOutput):
    """
    Output class for Stable Diffusion pipelines.

    Args:
        images (`list[PIL.Image.Image]` or `np.ndarray`)
            list of denoised PIL images of length `batch_size` or NumPy array of shape `(batch_size, height, width,
            num_channels)`.
        nsfw_content_detected (`list[bool]`)
            list indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content or
            `None` if safety checking could not be performed.
    """

    images: list[PIL.Image.Image] | np.ndarray
    nsfw_content_detected: list[bool] | None


if is_flax_available():
    import flax

    @flax.struct.dataclass
    class FlaxStableDiffusionPipelineOutput(BaseOutput):
        """
        Output class for Flax-based Stable Diffusion pipelines.

        Args:
            images (`np.ndarray`):
                Denoised images of array shape of `(batch_size, height, width, num_channels)`.
            nsfw_content_detected (`list[bool]`):
                list indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content
                or `None` if safety checking could not be performed.
        """

        images: np.ndarray
        nsfw_content_detected: list[bool]