# import gradio as gr
# import torch
# from diffusers import StableDiffusionControlNetPipeline, ControlNetModel
# from PIL import Image
# import numpy as np
# import cv2
# from rembg import remove

# # Загрузка моделей
# controlnet = ControlNetModel.from_pretrained("lllyasviel/sd-controlnet-scribble")
# pipe = StableDiffusionControlNetPipeline.from_pretrained(
#     "runwayml/stable-diffusion-v1-5",
#     controlnet=controlnet,
#     # torch_dtype=torch.float16
# ).to("cuda")

# def generate_background(image_path, prompt, negative_prompt):
#     # Удаление фона
#     image = Image.open(image_path).convert("RGBA")
#     output_image = remove(image)
    
#     # Преобразование изображения объекта в контурное изображение
#     foreground = output_image.convert("L")
#     _, contour = cv2.threshold(np.array(foreground), 127, 255, cv2.THRESH_BINARY)
#     contour_image = Image.fromarray(contour)
    
#     # Генерация фона
#     generator = torch.Generator(device="cuda").manual_seed(1024)
#     result = pipe(
#         prompt=prompt,
#         negative_prompt=negative_prompt,
#         image=contour_image,
#         generator=generator,
#         num_inference_steps=50
#     )
    
#     background = result.images[0].convert("RGBA")
    
#     # Изменение размера фона до размера переднего плана
#     background = background.resize(output_image.size)
    
#     # Наложение изображений
#     composite = Image.alpha_composite(background, output_image)
    
#     return composite

# # Определение интерфейса Gradio
# iface = gr.Interface(
#     fn=generate_background,
#     inputs=[
#         gr.Image(type="filepath", label="Загрузите изображение"),
#         gr.Textbox(lines=2, placeholder="Введите позитивный промт", label="Позитивный промт"),
#         gr.Textbox(lines=2, placeholder="Введите негативный промт", label="Негативный промт")
#     ],
#     outputs=gr.Image(type="pil", label="Результат")
# )

# # Запуск интерфейса
# iface.launch()

import gradio as gr
import numpy as np
import random
from diffusers import DiffusionPipeline
import torch

device = "cuda" if torch.cuda.is_available() else "cpu"

if torch.cuda.is_available():
    torch.cuda.max_memory_allocated(device=device)
    pipe = DiffusionPipeline.from_pretrained("stabilityai/sdxl-turbo", torch_dtype=torch.float16, variant="fp16", use_safetensors=True)
    pipe.enable_xformers_memory_efficient_attention()
    pipe = pipe.to(device)
else: 
    pipe = DiffusionPipeline.from_pretrained("stabilityai/sdxl-turbo", use_safetensors=True)
    pipe = pipe.to(device)

MAX_SEED = np.iinfo(np.int32).max
MAX_IMAGE_SIZE = 1024

def infer(prompt, negative_prompt, seed, randomize_seed, width, height, guidance_scale, num_inference_steps):

    if randomize_seed:
        seed = random.randint(0, MAX_SEED)
        
    generator = torch.Generator().manual_seed(seed)
    
    image = pipe(
        prompt = prompt, 
        negative_prompt = negative_prompt,
        guidance_scale = guidance_scale, 
        num_inference_steps = num_inference_steps, 
        width = width, 
        height = height,
        generator = generator
    ).images[0] 
    
    return image

examples = [
    "Astronaut in a jungle, cold color palette, muted colors, detailed, 8k",
    "An astronaut riding a green horse",
    "A delicious ceviche cheesecake slice",
]

css="""
#col-container {
    margin: 0 auto;
    max-width: 520px;
}
"""

if torch.cuda.is_available():
    power_device = "GPU"
else:
    power_device = "CPU"

with gr.Blocks(css=css) as demo:
    
    with gr.Column(elem_id="col-container"):
        gr.Markdown(f"""
        # Text-to-Image Gradio Template
        Currently running on {power_device}.
        """)
        
        with gr.Row():
            
            prompt = gr.Text(
                label="Prompt",
                show_label=False,
                max_lines=1,
                placeholder="Enter your prompt",
                container=False,
            )
            
            run_button = gr.Button("Run", scale=0)
        
        result = gr.Image(label="Result", show_label=False)

        with gr.Accordion("Advanced Settings", open=False):
            
            negative_prompt = gr.Text(
                label="Negative prompt",
                max_lines=1,
                placeholder="Enter a negative prompt",
                visible=False,
            )
            
            seed = gr.Slider(
                label="Seed",
                minimum=0,
                maximum=MAX_SEED,
                step=1,
                value=0,
            )
            
            randomize_seed = gr.Checkbox(label="Randomize seed", value=True)
            
            with gr.Row():
                
                width = gr.Slider(
                    label="Width",
                    minimum=256,
                    maximum=MAX_IMAGE_SIZE,
                    step=32,
                    value=512,
                )
                
                height = gr.Slider(
                    label="Height",
                    minimum=256,
                    maximum=MAX_IMAGE_SIZE,
                    step=32,
                    value=512,
                )
            
            with gr.Row():
                
                guidance_scale = gr.Slider(
                    label="Guidance scale",
                    minimum=0.0,
                    maximum=10.0,
                    step=0.1,
                    value=0.0,
                )
                
                num_inference_steps = gr.Slider(
                    label="Number of inference steps",
                    minimum=1,
                    maximum=12,
                    step=1,
                    value=2,
                )
        
        gr.Examples(
            examples = examples,
            inputs = [prompt]
        )

    run_button.click(
        fn = infer,
        inputs = [prompt, negative_prompt, seed, randomize_seed, width, height, guidance_scale, num_inference_steps],
        outputs = [result]
    )

demo.queue().launch()