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import os
import requests
import argparse
import subprocess
import gradio as gr
from install import checking
from urllib.parse import urlparse
from modules import scripts, script_callbacks
try:
    from modules.paths_internal import data_path, models_path, extensions_dir
except ImportError:
       from modules.paths import data_path, models_path
       extensions_dir = os.path.join(data_path, 'extensions')

sd_path = os.getcwd()
ext = '/extensions'
no_prev = None
addnet_path = None
md_path = scripts.basedir()

parser = argparse.ArgumentParser()
parser.add_argument('--ckpt-dir', type=str, default=os.path.join(models_path, 'Stable-diffusion'))
parser.add_argument('--vae-dir', type=str, default=os.path.join(models_path, 'VAE'))
parser.add_argument('--embeddings-dir', type=str, default=os.path.join(data_path, 'embeddings'))
parser.add_argument('--hypernetwork-dir', type=str, default=os.path.join(models_path, 'hypernetworks'))
parser.add_argument('--lora-dir', type=str, default=os.path.join(models_path, 'Lora'))
parser.add_argument('--lyco-dir', type=str, default=os.path.join(models_path, 'LyCORIS'))
args, _ = parser.parse_known_args()

if not os.path.exists(os.path.join(sd_path, 'html', 'card-no-preview.png')):
   try:
       no_prev = os.path.join(md_path, 'images', 'card-no-prev.png')
   except:
          pass
else:
     no_prev = os.path.join(sd_path, 'html', 'card-no-preview.png')
if not os.path.exists(os.path.join(sd_path, ext, 'sd-webui-additional-networks')):
   addnet_path = os.path.join(extensions_dir, 'sd-webui-additional-networks')
else:
     addnet_path = os.path.join(sd_path, ext, 'sd-webui-additional-networks')

checkpoint_path = args.ckpt_dir
vae_path = args.vae_dir
embedding_path = args.embeddings_dir
hypernetwork_path = args.hypernetwork_dir
lora_path = args.lora_dir
lycoris_path = args.lyco_dir
controlnet_path = os.path.join(extensions_dir, 'sd-webui-controlnet')
controlnet_model_path = os.path.join(controlnet_path, 'models')

print(f'Model Downloader v1.0.6 fixed')
print('Checking Directories...')
if not os.path.exists(checkpoint_path):
   os.makedirs(checkpoint_path)
   print ('Creating Checkpoint Folder')
if not os.path.exists(hypernetwork_path):
   os.makedirs(hypernetwork_path)
   print ('Creating Hypernetwork Folder')
if not os.path.exists(embedding_path):
   os.makedirs(embedding_path)
   print ('Creating TextualInversion/Embeddings Folder')
if not os.path.exists(vae_path):
   os.makedirs(vae_path)
   print ('Creating VAE Folder')
if not os.path.exists(lora_path):
   os.makedirs(lora_path)
   print ('Creating LoRA Folder')
if not os.path.exists(lycoris_path):
   os.makedirs(lycoris_path)
   print ('Creating LyCORIS Folder')
else:
     pass
print('all Directories already Created.')

def folder(content_type):
    if content_type == 'Checkpoint':
       downloadpath = checkpoint_path
    elif content_type == 'Hypernetwork':
         downloadpath = hypernetwork_path
    elif content_type == 'TextualInversion/Embedding':
         downloadpath = embedding_path
    elif content_type == 'VAE':
         downloadpath = vae_path
    elif content_type == 'LoRA':
         downloadpath = lora_path
    elif content_type == 'LyCORIS(LoCon/LoHA)':
         downloadpath = lycoris_path
    elif content_type == 'ControlNet Model':
         downloadpath = controlnet_model_path
    else:
         downloadpath = 'Unset, Please Choose your Content Type'
    return downloadpath

def get_filename_from_url(url):
    if url.find('https://civitai.com/')!=-1:
       convert = '' + url.replace('download/models', 'v1/model-versions')
       req = requests.get(convert, stream=True)
       basename, extension = os.path.splitext(req.json()['files'][0]['name'].replace(' ', '_'))
    else:
         parse = urlparse(url).path
         req = parse[parse.rfind('/') + 1:].replace(' ', '_')
         basename, extension = os.path.splitext(req)
    return basename, extension

def get_image_from_url(url):
    if url.find('https://civitai.com/')!=-1:
       convert = '' + url.replace('download/models', 'v1/model-versions')
       req = requests.get(convert, stream=True)
       imgurl = req.json()['images'][0]['url']
    else:
         imgurl = no_prev
    return imgurl

def change_name(changename):
    if changename:
       filename = gr.Textbox.update(visible=True)
    else:
         filename = gr.Textbox.update(visible=False)
    return filename

def get_data_from_url(url, downloadpath):
    try:
        imgurl = get_image_from_url(url)
        basename, extension = get_filename_from_url(url)
        markdown2 = f'''
                     <font size=2>
                     <b>Modle File Name :</b> {basename}{extension}<br>
                     '''
    except:
           imgurl = no_prev
           markdown2 = f'''
                        <font size=2>
                        <b>Modle File Name :</b> ???
                        '''
    filename = gr.Textbox.update(basename)
    image = gr.Image.update(imgurl)
    download_btn =  gr.Button.update(visible=True, variant='primary')
    out_text = gr.Textbox.update('Ready', visible=True)
    info = gr.Markdown.update(markdown2)
    return filename, image, download_btn, out_text, info

def start_downloading(download_btn, url, downloadpath, filename, addnet, logging):
    complete1 = f'SUCCESS: Download Completed, Saved to\n'
    complete2 = f'ERROR: File Already Exist in\n'
    complete3 = 'ERROR: Something went wrong, please try again later'
    path, extension = get_filename_from_url(url)
    imgname = f'{filename}.preview.png'
    if url.find('https://civitai.com/')!=-1:
       target1 = f'{downloadpath}/{filename}'
       target2 = f'{addnet_path}/models/lora/{filename}'
    else:
         target1 = f'{downloadpath}'
         target2 = f'{addnet_path}/models/lora'
    final_target = None
    if addnet:
       final_target = target2
    else:
         final_target = target1
    with open('model.txt', 'w') as w:
         if not url.find('https://civitai.com/')!=-1:
            w.write(f'{url}\n out={filename}{extension}')
         else:
              imgurl = get_image_from_url(url)
              w.write(f'{url}\n out={filename}{extension}\n{imgurl}\n out={imgname}')
    command = f'aria2c --console-log-level=error -c -x 16 -s 16 -k 1M --input-file model.txt -d {final_target}'
    back(download_btn)
    if not os.path.exists(os.path.join(final_target, filename)):
       try:
           if logging:
              command.replace(f' --console-log-level=error', '')
              line = subprocess.getoutput(command)
              yield line
              print(line)
           else:
                line = os.popen(command)
                for l in line:
                    l = l.rstrip()
                    yield f'{complete1}{final_target}'
                print(f'{complete1}{final_target}')
       except Exception:
               yield f'{Exception}\n{complete3}'
               print(f'{Exception}\n{complete3}')
    else:
         yield f'{complete2}{final_target}'
         print(f'{complete2}{final_target}')

def back(download_btn):
    return gr.Button.update(visible=True, variant='secondary')


def on_ui_tabs():
    with gr.Blocks() as downloader:
         with gr.Row():
             content_type = gr.Radio(
                    label='1. Choose Content type',
                    choices=[
                            'Checkpoint',
                            'Hypernetwork',
                            'TextualInversion/Embedding',
                            'VAE',
                            'LoRA',
                            'LyCORIS(LoCon/LoHA)',
                            'ControlNet Model'
                            ]
                    )
         with gr.Row():
             with gr.Column():
                with gr.Row():
                        downloadpath = gr.Textbox(visible=False)
                        addnet = gr.Checkbox(label='save to Additional Networks', value=False, visible=True)
                        logging = gr.Checkbox(label='turn on log', value=False)
                        changename = gr.Checkbox(label='Change Filename', value=False)
                url = gr.Textbox(
                    label='2. Put Link Download Below',
                    max_lines=1, placeholder='Type/Paste URL Here'
                    )
                filename = gr.Textbox(
                    label='Change Filename',
                    placeholder='Filename',
                    visible=False
                    )
                download_btn = gr.Button(
                    'Start Download',
                    variant='secondary'
                    )
                out_text = gr.Textbox(
                    label='Download Result',
                    placeholder='Result'
                    )
             with gr.Column():
                  info = gr.Markdown(
                              '''
                              <font size=2>
                              <b>Modle File Name :  </b>
                              '''
                              )
                  with gr.Row():
                        image = gr.Image(value=no_prev, show_label=False)
                        image.style(height=305)
         with gr.Row():
              github = gr.Markdown(
                                   '''
                                   <center><font size=2>Having Issue? | 
                                   <a href=https://github.com/Iyashinouta/sd-model-downloader/issues>Report Here</a><br>
                                   <center><font size=1>Model Downloader v1.0.6 fixed
                                   '''
                                   )
         content_type.change(folder, content_type, downloadpath)
         changename.change(change_name, changename, filename)
         url.change(get_data_from_url, [url, downloadpath], [filename, image, download_btn, out_text, info])
         download_btn.click(start_downloading, [download_btn, url, downloadpath, filename, addnet, logging], out_text)
         url.submit(start_downloading, [download_btn, url, downloadpath, filename, addnet, logging], out_text)
         download_btn.click(back, download_btn, download_btn)
         url.submit(back, url, download_btn)
    return (downloader, 'Model Downloader', 'downloader'),

script_callbacks.on_ui_tabs(on_ui_tabs)