# install

import gradio as gr
import os

import subprocess

if os.getenv('SYSTEM') == 'spaces':
    # subprocess.run('pip install pyembree'.split())
    try:
        import pytorch3d
    except ImportError:
        subprocess.run(
            'pip install --no-index --no-cache-dir pytorch3d -f https://dl.fbaipublicfiles.com/pytorch3d/packaging/wheels/py38_cu116_pyt1130/download.html'
            .split()
        )
    subprocess.run("python setup.py build_ext --inplace".split(), cwd="./lib/common/libmesh/")
    subprocess.run("python setup.py build_ext --inplace".split(), cwd="./lib/common/libvoxelize/")

from apps.infer import generate_model, generate_video

# running

title = '''
# Unconstrained & Detailed Clothed Human Digitization (ECON + ControlNet) 
### ECON: Explicit Clothed humans Optimized via Normal integration (CVPR 2023, Highlight)
'''

bottom = '''


#### Citation
```
@inproceedings{xiu2023econ,
  title     = {{ECON: Explicit Clothed humans Optimized via Normal integration}},
  author    = {Xiu, Yuliang and Yang, Jinlong and Cao, Xu and Tzionas, Dimitrios and Black, Michael J.},
  booktitle = {Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
  month     = {June},
  year      = {2023},
} 
```


<details>

<summary>More</summary>

#### Acknowledgments:
- [controlnet-openpose](https://huggingface.co/spaces/diffusers/controlnet-openpose)
- [TEXTure](https://huggingface.co/spaces/TEXTurePaper/TEXTure)


#### Image Credits

* [Pinterest](https://www.pinterest.com/search/pins/?q=parkour&rs=sitelinks_searchbox)

#### Related works

* [ICON @ MPI-IS](https://icon.is.tue.mpg.de/)
* [MonoPort @ USC](https://xiuyuliang.cn/monoport)
* [Phorhum @ Google](https://phorhum.github.io/)
* [PIFuHD @ Meta](https://shunsukesaito.github.io/PIFuHD/)
* [PaMIR @ Tsinghua](http://www.liuyebin.com/pamir/pamir.html)

</details>

<center>
<a href="https://huggingface.co/spaces/Yuliang/ECON?duplicate=true"><img src="https://huggingface.co/datasets/huggingface/badges/raw/main/duplicate-this-space-lg-dark.svg"/></a>
<h2> Generate pose & prompt-guided images / Upload photos /  Use examples &rarr; Submit Image (~3min) &rarr; Generate Video (~3min) </h2>
<h2><span style="color:red">ECON is only suitable for "humanoid images" and will not work well on cartoons with non-human shapes.</span></h2>
</center>
'''

description = '''
<table>
<th width="20%">
<ul>
<li><strong>Homepage</strong> <a href="https://econ.is.tue.mpg.de/">econ.is.tue.mpg.de</a></li>
<li><strong>Code</strong> <a href="https://github.com/YuliangXiu/ECON">YuliangXiu/ECON</a></li>
<li><strong>Paper</strong> <a href="https://arxiv.org/abs/2212.07422">arXiv</a>, <a href="https://readpaper.com/paper/4736821012688027649">ReadPaper</a></li>
<li><strong>Chatroom</strong> <a href="https://discord.gg/Vqa7KBGRyk">Discord</a></li>
</ul>
<br>
<ul>
<li><strong>Colab Notebook</strong> <a href='https://colab.research.google.com/drive/1YRgwoRCZIrSB2e7auEWFyG10Xzjbrbno?usp=sharing'><img style="display: inline-block;" src='https://colab.research.google.com/assets/colab-badge.svg' alt='Google Colab'></a></li>
<li><strong>Blender Plugin</strong> <a href='https://carlosedubarreto.gumroad.com/l/CEB_ECON'><img style="display: inline-block;" src='https://img.shields.io/badge/Blender-F6DDCC.svg?logo=Blender' alt='Blender'></a></li>
<li><strong>Docker Image</strong> <a href='https://github.com/YuliangXiu/ECON/blob/master/docs/installation-docker.md'><img style="display: inline-block;" src='https://img.shields.io/badge/Docker-9cf.svg?logo=Docker' alt='Docker'></a></li>
<li><strong>Windows Setup</strong> <a href="https://github.com/YuliangXiu/ECON/blob/master/docs/installation-windows.md"><img style="display: inline-block;" src='https://img.shields.io/badge/Windows-00a2ed.svg?logo=Windows' akt='Windows'></a></li>
</ul>

<br>
<a href="https://twitter.com/yuliangxiu"><img alt="Twitter Follow" src="https://img.shields.io/twitter/follow/yuliangxiu?style=social"></a><br>
<iframe src="https://ghbtns.com/github-btn.html?user=yuliangxiu&repo=ECON&type=star&count=true&v=2&size=small" frameborder="0" scrolling="0" width="100" height="20"></iframe>
</th>
<th width="40%">
<iframe width="560" height="315" src="https://www.youtube.com/embed/5PEd_p90kS0" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
</th>
<th width="40%">
<iframe width="560" height="315" src="https://www.youtube.com/embed/sbWZbTf6ZYk" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
</th>
</table>
'''

from controlnet_aux import OpenposeDetector
from diffusers import StableDiffusionControlNetPipeline, ControlNetModel
from diffusers import UniPCMultistepScheduler
import gradio as gr
import torch
import base64
from io import BytesIO
from PIL import Image

# live conditioning
canvas_html = "<pose-canvas id='canvas-root' style='display:flex;max-width: 500px;margin: 0 auto;'></pose-canvas>"
load_js = """
async () => {
  const url = "https://huggingface.co/datasets/radames/gradio-components/raw/main/pose-gradio.js"
  fetch(url)
    .then(res => res.text())
    .then(text => {
      const script = document.createElement('script');
      script.type = "module"
      script.src = URL.createObjectURL(new Blob([text], { type: 'application/javascript' }));
      document.head.appendChild(script);
    });
}
"""
get_js_image = """
async (image_in_img, prompt, image_file_live_opt, live_conditioning) => {
  const canvasEl = document.getElementById("canvas-root");
  const data = canvasEl? canvasEl._data : null;
  return [image_in_img, prompt, image_file_live_opt, data]
}
"""

# Constants
cached = False

# Models
pose_model = OpenposeDetector.from_pretrained("lllyasviel/ControlNet")
controlnet = ControlNetModel.from_pretrained(
    "lllyasviel/sd-controlnet-openpose", torch_dtype=torch.float16
)
pipe = StableDiffusionControlNetPipeline.from_pretrained(
    "runwayml/stable-diffusion-v1-5",
    controlnet=controlnet,
    safety_checker=None,
    torch_dtype=torch.float16
)
pipe.scheduler = UniPCMultistepScheduler.from_config(pipe.scheduler.config)

# This command loads the individual model components on GPU on-demand. So, we don't
# need to explicitly call pipe.to("cuda").
pipe.enable_model_cpu_offload()

# xformers
pipe.enable_xformers_memory_efficient_attention()

# Generator seed,
generator = torch.manual_seed(0)

hint_prompts = '''
<strong>Hints</strong>: <br>
best quality, extremely detailed, solid color background, 
super detail, high detail, edge lighting, soft focus, 
light and dark contrast, 8k, edge lighting, 3d, c4d, 
blender, oc renderer, ultra high definition, 3d rendering
'''


def get_pose(image):
    return pose_model(image)

import sys

def read_logs():
    sys.stdout.flush()
    with open("output.log", "r") as f:
        return f.read()


def generate_images(image, prompt, image_file_live_opt='file', live_conditioning=None):
    if image is None and 'image' not in live_conditioning:
        raise gr.Error("Please provide an image")
    try:
        if image_file_live_opt == 'file':
            pose = get_pose(image)
        elif image_file_live_opt == 'webcam':
            base64_img = live_conditioning['image']
            image_data = base64.b64decode(base64_img.split(',')[1])
            pose = Image.open(BytesIO(image_data)).convert('RGB').resize((512, 512))
        output = pipe(
            prompt,
            pose,
            generator=generator,
            num_images_per_prompt=3,
            num_inference_steps=50,
        )
        all_outputs = []
        all_outputs.append(pose)
        for image in output.images:
            all_outputs.append(image)
        return all_outputs, all_outputs
    except Exception as e:
        raise gr.Error(str(e))


def toggle(choice):
    if choice == "file":
        return gr.update(visible=True, value=None), gr.update(visible=False, value=None)
    elif choice == "webcam":
        return gr.update(visible=False, value=None), gr.update(visible=True, value=canvas_html)


examples_pose = 'examples/pose'
examples_cloth = 'examples/cloth'

def show_video():
    return gr.update(visible=True), gr.update(visible=True)

with gr.Blocks() as demo:
    
    gr.Markdown(title)
    gr.HTML(description)
    gr.Markdown(bottom)

    out_lst = []
    with gr.Row():
        with gr.Column():
            with gr.Row():

                live_conditioning = gr.JSON(value={}, visible=False)

                with gr.Column():
                    image_file_live_opt = gr.Radio(["file", "webcam"],
                                                   value="file",
                                                   label="How would you like to upload your image?")

                    with gr.Row():
                        image_in_img = gr.Image(
                            visible=True, type="pil", label="Image for Pose"
                        )
                        canvas = gr.HTML(None, elem_id="canvas_html", visible=False)

                    image_file_live_opt.change(
                        fn=toggle,
                        inputs=[image_file_live_opt],
                        outputs=[image_in_img, canvas],
                        queue=False
                    )
                    prompt = gr.Textbox(
                        label="Enter your prompt to synthesise the image",
                        max_lines=10,
                        placeholder="best quality, extremely detailed",
                    )

                    gr.Markdown(hint_prompts)

                with gr.Column():
                    gallery = gr.Gallery(label="Generated Images", columns=[2],rows=[2])
                    gallery_cache = gr.State()

                    gr.Markdown(
                        '''
                                <center>
                                <strong>Click the target generated image for Reconstruction.</strong> <br>
                                &darr;
                                </center>
                                '''
                    )

                    inp = gr.Image(type="filepath", label="Input Image for Reconstruction")
                    fitting_step = gr.Slider(
                        10,
                        100,
                        step=10,
                        label='Fitting steps (Slower yet Better-aligned SMPL-X)',
                        value=50
                    )

            with gr.Row():
                btn_sample = gr.Button("Generate Image")
                btn_submit = gr.Button("Submit Image (~3min)")

            btn_sample.click(
                fn=generate_images,
                inputs=[image_in_img, prompt, image_file_live_opt, live_conditioning],
                outputs=[gallery, gallery_cache],
                js=get_js_image
            )

            def get_select_index(cache, evt: gr.SelectData):
                return cache[evt.index]

            gallery.select(
                fn=get_select_index,
                inputs=[gallery_cache],
                outputs=[inp],
            )

            with gr.Row():
                
                gr.Examples(
                    examples=examples_pose,
                    inputs=[inp],
                    cache_examples=cached,
                    fn=generate_model,
                    outputs=out_lst,
                    label="Hard Pose Examples"
                )

                gr.Examples(
                    examples=examples_cloth,
                    inputs=[inp],
                    cache_examples=cached,
                    fn=generate_model,
                    outputs=out_lst,
                    label="Loose Cloth Examples"
                )


        with gr.Column():
            overlap_inp = gr.Image(type="filepath", label="Image Normal Overlap")
            out_final = gr.Model3D(
                clear_color=[0.0, 0.0, 0.0, 0.0], label="Clothed human", elem_id="avatar"
            )
            out_smpl = gr.Model3D(
                clear_color=[0.0, 0.0, 0.0, 0.0], label="SMPL-X body (via PIXIE)", elem_id="avatar"
            )

            vis_tensor_path = gr.State()
            

            # logs = gr.Textbox(max_lines=10, label="Logs")
            btn_video = gr.Button("Generate Video (~3min)", visible=False)
            out_vid = gr.Video(label="Shared on Twitter with #ECON", visible=False)

    out_lst = [out_smpl, out_final, overlap_inp, vis_tensor_path]

    btn_video.click(
        fn=generate_video,
        inputs=[vis_tensor_path],
        outputs=[out_vid],
    )

    btn_submit.click(fn=generate_model, inputs=[inp, fitting_step], outputs=out_lst)
    btn_submit.click(fn=show_video, outputs=[btn_video, out_vid])
    # demo.load(read_logs, None, logs, every=1, queue=True, scroll_to_output=True)
    demo.load(None, None, None, js=load_js)

if __name__ == "__main__":

    demo.queue()
    demo.launch(max_threads=4)
    # demo.launch(max_threads=2, debug=True, server_port=8888, server_name="0.0.0.0")