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import os 
import numpy as np
import io
# os.system("pip install gradio==4.29.0")
os.system("pip install opencv-python")
import cv2
import gradio as gr
import random
import warnings
import spaces
from PIL import Image
from S2I import Sketch2ImageController, css, scripts


dark_mode_theme = """
function refresh() {
    const url = new URL(window.location);

    if (url.searchParams.get('__theme') !== 'dark') {
        url.searchParams.set('__theme', 'dark');
        window.location.href = url.href;
    }
}
"""

os.environ["TOKENIZERS_PARALLELISM"] = "false"
warnings.filterwarnings("ignore")
controller = Sketch2ImageController(gr)


def run_gpu(options, img_init, text_init, prompt_template_init, style_name_init, seeds_init, val_r_values_init, faster_init, model_name_init, clear_flag):
    return controller.artwork(options, img_init, text_init, prompt_template_init, style_name_init, seeds_init, val_r_values_init, faster_init, model_name_init, clear_flag)

def run_cpu(options, img_init, text_init, prompt_template_init, style_name_init, seeds_init, val_r_values_init, faster_init, model_name_init, clear_flag):
    return controller.artwork(options, img_init, text_init, prompt_template_init, style_name_init, seeds_init, val_r_values_init, faster_init, model_name_init, clear_flag)

def get_dark_mode():
    return """
    () => {
        document.body.classList.toggle('dark');
    }
    """

def clear_session():
    return gr.update(value=None), gr.update(value=None)


def assign_gpu(options, img_init, text_init, prompt_template_init, style_name_init, seeds_init, val_r_values_init, faster_init, model_name_init, clear_flag):

    if options == 'GPU':
        decorated_run = spaces.GPU(run_gpu)
        return decorated_run(options, img_init, text_init, prompt_template_init, style_name_init, seeds_init, val_r_values_init, faster_init, model_name_init, clear_flag)
    else:
        return run_cpu(options, img_init, text_init, prompt_template_init, style_name_init, seeds_init, val_r_values_init, faster_init, model_name_init, clear_flag)

def read_temp_file(temp_file_wrapper):
    name = temp_file_wrapper.name
    with open(temp_file_wrapper.name, 'rb') as f:
        # Read the content of the file
        file_content = f.read()
    return file_content, name

def convert_to_pencil_sketch(image):
    if image is None:
        raise ValueError(f"Image at path {image} could not be loaded.")
    
    # Converting it into grayscale
    gray_image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)

    # Inverting the image
    inverted_image = 255 - gray_image

    # Blurring the image
    blurred = cv2.GaussianBlur(inverted_image, (25, 25), 0)
    inverted_blurred = 255 - blurred

    # Creating the pencil sketch
    pencil_sketch = cv2.divide(gray_image, inverted_blurred, scale=256.0)

    return pencil_sketch

def get_meta_from_image(input_img, type_image):
    if input_img is None:
        return gr.update(value=None)

    file_content, _ = read_temp_file(input_img)
    
    # Read the image using Pillow
    img = Image.open(io.BytesIO(file_content)).convert("RGB")
    img_np = np.array(img)

    if type_image == 'RGB':
        sketch = convert_to_pencil_sketch(img_np)
        processed_img = 255 - sketch
    elif type_image == 'SKETCH':
        processed_img = 255 - img_np

    # Convert the processed image back to PIL Image
    img_pil = Image.fromarray(processed_img.astype('uint8'))
    
    return img_pil



with gr.Blocks(css=css, theme="NoCrypt/miku@1.2.1") as demo:
    gr.HTML(
                """
                <!DOCTYPE html>
                <html lang="en">
                <head>
                    <meta charset="UTF-8">
                    <meta name="viewport" content="width=device-width, initial-scale=1.0">
                    <title>S2I-Artwork Animation</title>
                    <style>
                
                        @keyframes blinkCursor {
                            from { border-right-color: rgba(255, 255, 255, 0.75); }
                            to { border-right-color: transparent; }
                        }
                
                        
                
                        @keyframes fadeIn {
                            0% { opacity: 0; transform: translateY(-10px); }
                            100% { opacity: 1; transform: translateY(0); }
                        }
                
                        @keyframes bounce {
                            0%, 20%, 50%, 80%, 100% {
                                transform: translateY(0);
                            }
                            40% {
                                transform: translateY(-10px);
                            }
                            60% {
                                transform: translateY(-5px);
                            }
                        }
                        .typewriter h1 {
                            overflow: hidden;
                            border-right: .15em solid rgba(255, 255, 255, 0.75);
                            white-space: nowrap;
                            margin: 0 auto;
                            letter-spacing: .15em;
                            animation: 
                                zoomInOut 4s infinite;
                        }
                        .animated-heading {
                            animation: fadeIn 2s ease-in-out;
                        }
                
                        .animated-link {
                            display: inline-block;
                            animation: bounce 3s infinite;
                        }
                    </style>
                </head>
                <body>
                    <div>
                        <div class="typewriter">
                            <h1 style="display: flex; align-items: center; justify-content: center; margin-bottom: 10px; text-align: center;">
                                <img src="https://imgur.com/H2SLps2.png" alt="icon" style="margin-left: 10px; height: 30px;">
                                S2I-Artwork 
                                <img src="https://imgur.com/cNMKSAy.png" alt="icon" style="margin-left: 10px; height: 30px;">: 
                                Personalized Sketch-to-Art 🧨 Diffusion Models 
                                <img src="https://imgur.com/yDnDd1p.png" alt="icon" style="margin-left: 10px; height: 30px;">
                            </h1>
                        </div>
                        <h3 class="animated-heading" style="text-align: center; margin-bottom: 10px;">Authors: Vo Nguyen An Tin, Nguyen Thiet Su</h3>
                        <h4 class="animated-heading" style="margin-bottom: 10px;">*This project is the fine-tuning task with LorA on large datasets included: COCO-2017, LHQ, Danbooru, LandScape and Mid-Journey V6</h4>
                        <h4 class="animated-heading" style="margin-bottom: 10px;">* We public 2 sketch2image-models-lora training on 30K and 60K steps with skip-connection and Transformers Super-Resolution variables</h4>
                        <h4 class="animated-heading" style="margin-bottom: 10px;">* The inference and demo time of model is faster, you can slowly in the first runtime, but after that, the time process over 1.5 ~ 2s</h4>
                        <h4 class="animated-heading" style="margin-bottom: 10px;">* View the full code project: 
                            <a class="animated-link" href="https://github.com/aihacker111/S2I-Artwork-Sketch-to-Image/" target="_blank">GitHub Repository</a>
                        </h4>
                        <h4 class="animated-heading" style="margin-bottom: 10px;">
                            <a class="animated-link" href="https://github.com/aihacker111/S2I-Artwork-Sketch-to-Image/" target="_blank">
                                <img src="https://cdn.buymeacoffee.com/buttons/default-orange.png" alt="Buy Me A Coffee" height="41" width="100">
                            </a>
                        </h4>
                    </div>
                </body>
                </html>
                """
            )
    with gr.Row(elem_id="main_row"):
        with gr.Column(elem_id="column_input"):
            gr.Markdown("## SKETCH", elem_id="input_header")
            image = gr.Sketchpad(
                type="pil",
                height=512,
                width=512,
                min_width=512,
                image_mode="RGBA",
                show_label=False,
                mirror_webcam=False,
                show_download_button=True,
                elem_id='input_image',
                brush=gr.Brush(colors=["#000000"], color_mode="fixed", default_size=4),
                canvas_size=(1024, 1024),
                layers=False
            )
            input_image = gr.File(label='Input image')

            download_sketch = gr.Button(
                "Download sketch", scale=1, elem_id="download_sketch"
            )

        with gr.Column(elem_id="column_output"):
            gr.Markdown("## IMAGE GENERATE", elem_id="output_header")
            result = gr.Image(
                label="Result",
                height=440,
                width=440,
                elem_id="output_image",
                show_label=False,
                show_download_button=True,
            )
            with gr.Row():
                run_button = gr.Button("Generate 🪄", min_width=5, variant='primary')
                randomize_seed = gr.Button(value='\U0001F3B2', variant='primary')
                clear_button = gr.Button("Reset Sketch Session", min_width=10, variant='primary')
            prompt = gr.Textbox(label="Personalized Text", value="", show_label=True)
            with gr.Accordion("S2I Advances Option", open=True):
                with gr.Row():
                    ui_mode = gr.Radio(
                            choices=["Light Mode", "Dark Mode"],
                            value="Light Mode",
                            label="Switch Light/Dark Mode UI",
                            interactive=True)
                    type_image = gr.Radio(
                            choices=["RGB", "SKETCH"],
                            value="SKETCH",
                            label="Type of Image (Color Image or Sketch Image)",
                            interactive=True)
                    input_type = gr.Radio(
                                    choices=["live-sketch", "upload"],
                                    value="live-sketch",
                                    label="Type Sketch2Image models",
                                    interactive=True)
                    style = gr.Dropdown(
                        label="Style",
                        choices=controller.STYLE_NAMES,
                        value=controller.DEFAULT_STYLE_NAME,
                        scale=1,
                    )
                    prompt_temp = gr.Textbox(
                        label="Prompt Style Template",
                        value=controller.styles[controller.DEFAULT_STYLE_NAME],
                        scale=2,
                        max_lines=1,
                    )
                    seed = gr.Textbox(label="Seed", value='42', scale=1, min_width=50)
                    zero_gpu_options = gr.Radio(
                            choices=["GPU", "CPU"],
                            value="GPU",
                            label="GPU & CPU Options Spaces",
                            interactive=True)
                    half_model = gr.Radio(
                            choices=["float32", "float16"],
                            value="float16",
                            label="Demo Speed",
                            interactive=True)
                    model_options = gr.Radio(
                            choices=["100k", "350k"],
                            value="350k",
                            label="Type Sketch2Image models",
                            interactive=True)
            
                    val_r = gr.Slider(
                            label="Sketch guidance: ",
                            show_label=True,
                            minimum=0,
                            maximum=1,
                            value=0.4,
                            step=0.01,
                            scale=3,
                        )

    demo.load(None, None, None, js=scripts)
    ui_mode.change(None, [], [], js=get_dark_mode())
    randomize_seed.click(
        lambda x: random.randint(0, controller.MAX_SEED),
        inputs=[],
        outputs=seed,
        queue=False,
        api_name=False,
    )
    inputs = [zero_gpu_options, image, prompt, prompt_temp, style, seed, val_r, half_model, model_options, input_type]
    outputs = [result, download_sketch]
    prompt.submit(fn=assign_gpu, inputs=inputs, outputs=outputs, api_name=False)

    input_image.change(
                fn=get_meta_from_image,
                inputs=[
                    input_image, type_image
                ],
                outputs=[
                    image
                ]
            )

    style.change(
        lambda x: controller.styles[x],
        inputs=[style],
        outputs=[prompt_temp],
        queue=False,
        api_name=False,
    ).then(
        fn=assign_gpu,
        inputs=inputs,
        outputs=outputs,
        api_name=False,
    )
    clear_button.click(fn=clear_session, inputs=[], outputs=[image, result]).then(
        fn=assign_gpu,
        inputs=inputs,
        outputs=outputs,
        api_name=False,
    )
    val_r.change(assign_gpu, inputs=inputs, outputs=outputs, queue=False, api_name=False)
    run_button.click(fn=assign_gpu, inputs=inputs, outputs=outputs, api_name=False)
    image.change(assign_gpu, inputs=inputs, outputs=outputs, queue=False, api_name=False)

if __name__ == '__main__':
    demo.queue()
    demo.launch(debug=True, share=False)