import requests
import os
import gradio as gr
from huggingface_hub import HfApi, update_repo_visibility
from slugify import slugify
import gradio as gr
import uuid
from typing import Optional
import json


def get_json_data(url):
    api_url = f"https://civitai.com/api/v1/models/{url.split('/')[4]}"
    try:
        response = requests.get(api_url)
        response.raise_for_status()
        return response.json()
    except requests.exceptions.RequestException as e:
        print(f"Error fetching JSON data: {e}")
        return None

def check_nsfw(json_data):
    if json_data["nsfw"]:
        return False
    for model_version in json_data["modelVersions"]:
        for image in model_version["images"]:
            if image["nsfw"] != "None":
                return False
    return True

def extract_info(json_data):
    if json_data["type"] == "LORA":
        for model_version in json_data["modelVersions"]:
            if model_version["baseModel"] in ["SDXL 1.0", "SDXL 0.9"]:
                for file in model_version["files"]:
                    if file["primary"]:
                        info = {
                            "urls_to_download": [
                                {"url": file["downloadUrl"], "filename": file["name"], "type": "weightName"},
                                {"url": model_version["images"][0]["url"], "filename": os.path.basename(model_version["images"][0]["url"]), "type": "imageName"}
                            ],
                            "id": model_version["id"],
                            "modelId": model_version["modelId"],
                            "name": json_data["name"],
                            "description": json_data["description"],
                            "trainedWords": model_version["trainedWords"],
                            "creator": json_data["creator"]["username"]
                        }
                        return info
    return None

def download_files(info, folder="."):
    downloaded_files = {
        "imageName": [],
        "weightName": []
    }
    for item in info["urls_to_download"]:
        download_file(item["url"], item["filename"], folder)
        downloaded_files[item["type"]].append(item["filename"])
    return downloaded_files

def download_file(url, filename, folder="."):
    try:
        response = requests.get(url)
        response.raise_for_status()
        with open(f"{folder}/{filename}", 'wb') as f:
            f.write(response.content)
    except requests.exceptions.RequestException as e:
        raise gr.Error(f"Error downloading file: {e}")

def process_url(url, do_download=True, folder="."):
    json_data = get_json_data(url)
    if json_data:
        if check_nsfw(json_data):
            info = extract_info(json_data)
            if info:
                if(do_download):
                    downloaded_files = download_files(info, folder)
                else:
                    downloaded_files = []
                return info, downloaded_files
            else:
                raise gr.Error("Only SDXL LoRAs are supported for now")
        else:
            raise gr.Error("This model has content tagged as unsafe by CivitAI")
    else:
        raise gr.Error("Something went wrong in fetching CivitAI API")

def create_readme(info, downloaded_files, is_author=True, folder="."):
    readme_content = ""
    original_url = f"https://civitai.com/models/{info['id']}"
    non_author_disclaimer = f'This model was originally uploaded on [CivitAI]({original_url}), by [{info["creator"]}](https://civitai.com/user/{info["creator"]}/models). The information below was provided by the author on CivitAI:'
    content = f"""---
license: other
tags:
  - text-to-image
  - stable-diffusion
  - lora
  - diffusers
base_model: stabilityai/stable-diffusion-xl-base-1.0
instance_prompt: {info["trainedWords"][0]}
widget:
  - text: {info["trainedWords"][0]}
---

# {info["name"]}

{non_author_disclaimer if not is_author else ''}

![Image]({downloaded_files["imageName"][0]})

{info["description"]}
"""
    readme_content += content + "\n"

    with open(f"{folder}/README.md", "w") as file:
        file.write(readme_content)

def get_creator(username):
    url = f"https://civitai.com/api/trpc/user.getCreator?input=%7B%22json%22%3A%7B%22username%22%3A%22{username}%22%2C%22authed%22%3Atrue%7D%7D"
    headers = {
        "authority": "civitai.com",
        "accept": "*/*",
        "accept-language": "en-BR,en;q=0.9,pt-BR;q=0.8,pt;q=0.7,es-ES;q=0.6,es;q=0.5,de-LI;q=0.4,de;q=0.3,en-GB;q=0.2,en-US;q=0.1,sk;q=0.1",
        "content-type": "application/json",
        "cookie": f'{os.environ["COOKIE_INFO"]}',
        "if-modified-since": "Tue, 22 Aug 2023 07:18:52 GMT",
        "referer": f"https://civitai.com/user/{username}/models",
        "sec-ch-ua": "\"Not.A/Brand\";v=\"8\", \"Chromium\";v=\"114\", \"Google Chrome\";v=\"114\"",
        "sec-ch-ua-mobile": "?0",
        "sec-ch-ua-platform": "macOS",
        "sec-fetch-dest": "empty",
        "sec-fetch-mode": "cors",
        "sec-fetch-site": "same-origin",
        "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36"
    }
    response = requests.get(url, headers=headers)

    return json.loads(response.text)

def extract_huggingface_username(username):
    data = get_creator(username)
    links = data.get('result', {}).get('data', {}).get('json', {}).get('links', [])
    for link in links:
        url = link.get('url', '')
        if url.startswith('https://huggingface.co/') or url.startswith('https://www.huggingface.co/'):
            username = url.split('/')[-1]
            return username

    return None


def check_civit_link(profile: Optional[gr.OAuthProfile], url):
    info, _ = process_url(url, do_download=False)
    hf_username = extract_huggingface_username(info['creator'])
    attributes_methods = dir(profile)
    if(not hf_username):
        no_username_text = f'Model by <b>{info["creator"]}</b> 🤗, if you are {info["creator"]}, hi! Your CivitAI profile seems to not have information about your Hugging Face account. Please visit <a href="https://civitai.com/user/account">https://civitai.com/user/account</a> and include it there<br><img width="60%" src="https://i.imgur.com/hCbo9uL.png" /><br>(if you are not {info["creator"]}, you cannot submit their model at this time)'
        return no_username_text, gr.update(interactive=False), gr.update(visible=True), hf_username
    if(profile.preferred_username != hf_username):
        unmatched_username_text = '<h4>Oops, the Hugging Face account in your CivitAI profile seems to be different than the one your are using here. Please visit <a href="https://civitai.com/user/account">https://civitai.com/user/account</a> and update it there<br><img src="https://i.imgur.com/hCbo9uL.png" /></h4>'
        return unmatched_username_text, gr.update(interactive=False), gr.update(visible=True), hf_username
    else:
        return '', gr.update(interactive=True), gr.update(visible=False), hf_username
        
def swap_fill(profile: Optional[gr.OAuthProfile]):
    if profile is None:
        return gr.update(visible=True), gr.update(visible=False)
    else:
        return gr.update(visible=False), gr.update(visible=True)

def show_output():
    return gr.update(visible=True)
    
def upload_civit_to_hf(profile: Optional[gr.OAuthProfile], url, civit_username, progress=gr.Progress(track_tqdm=True)):
    if not profile.name:
        return gr.Error("Are you sure you are logged in?")
    if civit_username != profile.preferred_username:
        return gr.Error("You are not the model author")
    
    folder = str(uuid.uuid4())
    os.makedirs(folder, exist_ok=False)
    info, downloaded_files = process_url(url, folder=folder)
    create_readme(info, downloaded_files, folder=folder)
    try:
        api = HfApi(token=os.environ["HUGGING_FACE_HUB_TOKEN"])
        username = api.whoami()["name"]
        slug_name = slugify(info["name"])
        repo_id = f"{username}/{profile.preferred_username}-{slug_name}"
        api.create_repo(repo_id=repo_id, private=True, exist_ok=True)
        api.upload_folder(
            folder_path=folder,
            repo_id=repo_id,
            repo_type="model",
        )
        api.update_repo_visibility(repo_id=repo_id, private=False)
    except:
        raise gr.Error("something went wrong")
        
    transfer_repos = gr.load("multimodalart/transfer_repos", hf_token=os.environ["HUGGING_FACE_HUB_TOKEN"], src="spaces")
    user_repo_id = f"{profile.preferred_username}/{slug_name}"
    response_code = transfer_repos(repo_id, user_repo_id)
    i = 0
    while response_code != "200":
        message = None
        if response_code == "409":
            if i < 3:
                user_repo_id = f"{profile.preferred_username}/{slug_name}-{i}"
                response_code = transfer_repos(repo_id, user_repo_id)
                i += 1
            else:
                message = "It seems this model has been uploaded already in your account."
        elif response_code == "404":
            message = "Something went wrong with the model upload. Try again."
        else:
            message = f"Unexpected response code: {response_code}."
    
        if message:
            api.delete_repo(repo_id=repo_id, repo_type="model")
            raise gr.Error(message)

    return f'''# Model uploaded to 🤗!
    ## Access it here [{user_repo_id}](https://huggingface.co/{user_repo_id}) '''


css = '''
#login {
    font-size: 0px;
    width: 100% !important;
    margin: 0 auto;
}
#logout {
    width: 100% !important;
    margin-top: 4em;
}
#login:after {
    content: 'Authorize this app before uploading your model';
    visibility: visible;
    display: block;
    font-size: var(--button-large-text-size);
}
#login:disabled{
    font-size: var(--button-large-text-size);
}
#login:disabled:after{
    content:''
}
#disabled_upload{
    opacity: 0.5;
    pointer-events:none;
}
'''

with gr.Blocks(css=css) as demo:
    gr.Markdown('''# Bring your CivitAI SDXL LoRA to Hugging Face
Get diffusers compatibility, a free GPU-based Inference Widget and possibility to submit to the [LoRA the Explorer](https://huggingface.co/spaces/multimodalart/LoraTheExplorer) space
    ''')
    gr.LoginButton(elem_id="login")
    with gr.Column(elem_id="disabled_upload") as disabled_area:
        with gr.Row():
                        submit_source_civit = gr.Textbox(
                            label="CivitAI model URL",
                            info="URL of the CivitAI model, for now only SDXL LoRAs are supported",
                        )
        submit_button_civit = gr.Button("Upload model to Hugging Face and submit", interactive=False)
    with gr.Column(visible=False) as enabled_area:
        with gr.Row():
                        submit_source_civit = gr.Textbox(
                            label="CivitAI model URL",
                            info="URL of the CivitAI model, for now only SDXL LoRAs are supported",
                        )
        instructions = gr.HTML("")
        try_again_button = gr.Button("I have added my HF profile to my account", visible=False)
        submit_button_civit = gr.Button("Upload model to Hugging Face", interactive=False)
        output = gr.Markdown(label="Output progress", visible=False)

    civit_username = gr.State()
    demo.load(fn=swap_fill, outputs=[disabled_area, enabled_area])
    submit_source_civit.change(fn=check_civit_link, inputs=[submit_source_civit], outputs=[instructions, submit_button_civit, try_again_button, civit_username])
    try_again_button.click(fn=check_civit_link, inputs=[submit_source_civit], outputs=[instructions, submit_button_civit, try_again_button])
    submit_button_civit.click(fn=show_output, inputs=[], outputs=[output]).then(fn=upload_civit_to_hf, inputs=[submit_source_civit, civit_username], outputs=[output])
    gr.LogoutButton(elem_id="logout")
demo.queue()
demo.launch()