# coding=utf-8
# Copyright 2025 HuggingFace Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import unittest

import numpy as np

from diffusers import LMSDiscreteScheduler, OnnxStableDiffusionInpaintPipeline
from diffusers.utils.testing_utils import (
    is_onnx_available,
    load_image,
    nightly,
    require_onnxruntime,
    require_torch_gpu,
)

from ..test_pipelines_onnx_common import OnnxPipelineTesterMixin


if is_onnx_available():
    import onnxruntime as ort


class OnnxStableDiffusionPipelineFastTests(OnnxPipelineTesterMixin, unittest.TestCase):
    # FIXME: add fast tests
    pass


@nightly
@require_onnxruntime
@require_torch_gpu
class OnnxStableDiffusionInpaintPipelineIntegrationTests(unittest.TestCase):
    @property
    def gpu_provider(self):
        return (
            "CUDAExecutionProvider",
            {
                "gpu_mem_limit": "15000000000",  # 15GB
                "arena_extend_strategy": "kSameAsRequested",
            },
        )

    @property
    def gpu_options(self):
        options = ort.SessionOptions()
        options.enable_mem_pattern = False
        return options

    def test_inference_default_pndm(self):
        init_image = load_image(
            "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main"
            "/in_paint/overture-creations-5sI6fQgYIuo.png"
        )
        mask_image = load_image(
            "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main"
            "/in_paint/overture-creations-5sI6fQgYIuo_mask.png"
        )
        pipe = OnnxStableDiffusionInpaintPipeline.from_pretrained(
            "botp/stable-diffusion-v1-5-inpainting",
            revision="onnx",
            safety_checker=None,
            feature_extractor=None,
            provider=self.gpu_provider,
            sess_options=self.gpu_options,
        )
        pipe.set_progress_bar_config(disable=None)

        prompt = "A red cat sitting on a park bench"

        generator = np.random.RandomState(0)
        output = pipe(
            prompt=prompt,
            image=init_image,
            mask_image=mask_image,
            guidance_scale=7.5,
            num_inference_steps=10,
            generator=generator,
            output_type="np",
        )
        images = output.images
        image_slice = images[0, 255:258, 255:258, -1]

        assert images.shape == (1, 512, 512, 3)
        expected_slice = np.array([0.2514, 0.3007, 0.3517, 0.1790, 0.2382, 0.3167, 0.1944, 0.2273, 0.2464])

        assert np.abs(image_slice.flatten() - expected_slice).max() < 1e-3

    def test_inference_k_lms(self):
        init_image = load_image(
            "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main"
            "/in_paint/overture-creations-5sI6fQgYIuo.png"
        )
        mask_image = load_image(
            "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main"
            "/in_paint/overture-creations-5sI6fQgYIuo_mask.png"
        )
        lms_scheduler = LMSDiscreteScheduler.from_pretrained(
            "botp/stable-diffusion-v1-5-inpainting", subfolder="scheduler", revision="onnx"
        )
        pipe = OnnxStableDiffusionInpaintPipeline.from_pretrained(
            "botp/stable-diffusion-v1-5-inpainting",
            revision="onnx",
            scheduler=lms_scheduler,
            safety_checker=None,
            feature_extractor=None,
            provider=self.gpu_provider,
            sess_options=self.gpu_options,
        )
        pipe.set_progress_bar_config(disable=None)

        prompt = "A red cat sitting on a park bench"

        generator = np.random.RandomState(0)
        output = pipe(
            prompt=prompt,
            image=init_image,
            mask_image=mask_image,
            guidance_scale=7.5,
            num_inference_steps=20,
            generator=generator,
            output_type="np",
        )
        images = output.images
        image_slice = images[0, 255:258, 255:258, -1]

        assert images.shape == (1, 512, 512, 3)
        expected_slice = np.array([0.0086, 0.0077, 0.0083, 0.0093, 0.0107, 0.0139, 0.0094, 0.0097, 0.0125])

        assert np.abs(image_slice.flatten() - expected_slice).max() < 1e-3
