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from subprocess import getoutput
import os

gpu_info = getoutput('nvidia-smi')
if("A10G" in gpu_info):
    which_gpu = "A10G"
    os.system(f"pip install --no-deps xformers==0.0.16rc425")
elif("T4" in gpu_info):
    which_gpu = "T4"
    os.system(f"pip install -q https://github.com/camenduru/stable-diffusion-webui-colab/releases/download/0.0.15/xformers-0.0.15.dev0+1515f77.d20221130-cp38-cp38-linux_x86_64.whl")
else:
    which_gpu = "CPU"
    
import gradio as gr
from pathlib import Path
import argparse
import shutil
from train_dreambooth import run_training
from convertosd import convert
from PIL import Image
from slugify import slugify
import requests
import torch
import zipfile
import tarfile
import urllib.parse
import gc
from diffusers import StableDiffusionPipeline
from huggingface_hub import snapshot_download, update_repo_visibility, HfApi

is_spaces = True if "SPACE_ID" in os.environ else False
if(is_spaces):
    is_shared_ui = True if "multimodalart/dreambooth-training" in os.environ['SPACE_ID'] else False
else:
    is_shared_ui = False
is_gpu_associated = torch.cuda.is_available()

os.environ["HF_HUB_ENABLE_HF_TRANSFER"] = "1"

if(is_gpu_associated):
    model_v1 = snapshot_download(repo_id="multimodalart/sd-fine-tunable")
    model_v2 = snapshot_download(repo_id="stabilityai/stable-diffusion-2-1", ignore_patterns=["*.ckpt", "*.safetensors"])
    model_v2_512 = snapshot_download(repo_id="stabilityai/stable-diffusion-2-1-base", ignore_patterns=["*.ckpt", "*.safetensors"])
    safety_checker = snapshot_download(repo_id="multimodalart/sd-sc")
    model_to_load = model_v1

def swap_base_model(selected_model):
    if(is_gpu_associated):
        global model_to_load
        if(selected_model == "v1-5"):
            model_to_load = model_v1
        elif(selected_model == "v2-1-768"):
            model_to_load = model_v2
        else:
            model_to_load = model_v2_512



css = '''
    .instruction{position: absolute; top: 0;right: 0;margin-top: 0px !important}
    .arrow{position: absolute;top: 0;right: -110px;margin-top: -8px !important}
    #component-4, #component-3, #component-10{min-height: 0}
    .duplicate-button img{margin: 0}
'''
maximum_concepts = 3

def swap_text(option, base):
    resize_width = 768 if base == "v2-1-768" else 512
    mandatory_liability = "You must have the right to do so and you are liable for the images you use, example:"
    if(option == "object"):
        instance_prompt_example = "cttoy"
        freeze_for = 30
        return [f"You are going to train `object`(s), upload 5-10 images of each object you are planning on training on from different angles/perspectives. You can use services like <a style='text-decoration: underline' target='_blank' href='https://www.birme.net/?target_width={resize_width}&target_height={resize_width}'>birme</a> for smart cropping. {mandatory_liability}:", '''<img src="file=cat-toy.png" />''', f"You should name your concept with a unique made up word that has low chance of the model already knowing it (e.g.: `{instance_prompt_example}` here). Images will be automatically cropped to {resize_width}x{resize_width}.", freeze_for, gr.update(visible=False)]
    elif(option == "person"):
       instance_prompt_example = "julcto"
       freeze_for = 70
       #show_prior_preservation = True if base != "v2-1-768" else False
       show_prior_preservation=False
       if(show_prior_preservation):
           prior_preservation_box_update = gr.update(visible=show_prior_preservation)
       else: 
           prior_preservation_box_update = gr.update(visible=show_prior_preservation, value=False)
       return [f"You are going to train a `person`(s), upload 10-20 images of each person you are planning on training on from different angles/perspectives. You can use services like <a style='text-decoration: underline' target='_blank' href='https://www.birme.net/?target_width={resize_width}&target_height={resize_width}'>birme</a> for smart cropping. {mandatory_liability}:", '''<img src="file=person.png" />''', f"You should name your concept with a unique made up word that has low chance of the model already knowing it (e.g.: `{instance_prompt_example}` here). Images will be automatically cropped to {resize_width}x{resize_width}.", freeze_for, prior_preservation_box_update]
    elif(option == "style"):
        instance_prompt_example = "trsldamrl"
        freeze_for = 10
        return [f"You are going to train a `style`, upload 10-20 images of the style you are planning on training on. You can use services like <a style='text-decoration: underline' target='_blank' href='https://www.birme.net/?target_width={resize_width}&target_height={resize_width}'>birme</a> for smart cropping. {mandatory_liability}:", '''<img src="file=trsl_style.png" />''', f"You should name your concept with a unique made up word that has low chance of the model already knowing it (e.g.: `{instance_prompt_example}` here). Images will be automatically cropped to {resize_width}x{resize_width}", freeze_for, gr.update(visible=False)]

def count_files(*inputs):
    file_counter = 0
    concept_counter = 0
    for i, input in enumerate(inputs):
        if(i < maximum_concepts):
            files = inputs[i]
            if(files):
                concept_counter+=1
                file_counter+=len(files)
    uses_custom = inputs[-1] 
    type_of_thing = inputs[-4]
    selected_model = inputs[-5]
    experimental_faces = inputs[-6]
    if(uses_custom):
        Training_Steps = int(inputs[-3])
    else:
        Training_Steps = file_counter*150
        if(type_of_thing == "person" and Training_Steps > 2400):
            Training_Steps = 2400 #Avoid overfitting on person faces
    if(is_spaces):
        if(selected_model == "v1-5"):
            its = 1.1 if which_gpu == "T4" else 1.8
            if(experimental_faces):
                its = 1
        elif(selected_model == "v2-1-512"):
            its = 0.8 if which_gpu == "T4" else 1.5
            if(experimental_faces):
                its = 0.7
        elif(selected_model == "v2-1-768"):
            its = 0.48 if which_gpu == "T4" else 0.85
       
        gpu_price = 0.60 if which_gpu == "T4" else 1.10
        summary_sentence = f'''You are going to train {concept_counter} {type_of_thing}(s), with {file_counter} images for {Training_Steps} steps. The training should take around {round(Training_Steps/its, 2)} seconds, or {round((Training_Steps/its)/60, 2)} minutes.
            The setup, compression and uploading the model can take up to 20 minutes.<br>As the {which_gpu}-Small GPU costs US${gpu_price} for 1h, <span style="font-size: 120%"><b>the estimated cost for this training is below US${round((((Training_Steps/its)/3600)+0.3+0.1)*gpu_price, 2)}.</b></span><br><br>
            If you check the box below the GPU attribution will automatically removed after training is done and the model is uploaded. If not, don't forget to come back here and swap the hardware back to CPU.<br><br>'''
    else:
        summary_sentence = f'''You are going to train {concept_counter} {type_of_thing}(s), with {file_counter} images for {Training_Steps} steps.<br><br>'''
        
    return([gr.update(visible=True), gr.update(visible=True, value=summary_sentence)])

def update_steps(*files_list):
    file_counter = 0
    for i, files in enumerate(files_list):
        if(files):
            file_counter+=len(files)
    return(gr.update(value=file_counter*200))

def visualise_progress_bar():
    return gr.update(visible=True)

def pad_image(image):
    w, h = image.size
    if w == h:
        return image
    elif w > h:
        new_image = Image.new(image.mode, (w, w), (0, 0, 0))
        new_image.paste(image, (0, (w - h) // 2))
        return new_image
    else:
        new_image = Image.new(image.mode, (h, h), (0, 0, 0))
        new_image.paste(image, ((h - w) // 2, 0))
        return new_image

def validate_model_upload(hf_token, model_name):
    if(hf_token != ''):
        api = HfApi()
        try:
            _ = api.whoami(hf_token)
        except:
            raise gr.Error("You have inserted an invalid Hugging Face token")
        try:
            if(is_spaces):
                update_repo_visibility(repo_id=os.environ['SPACE_ID'], private=True, token=hf_token, repo_type="space")
        except:
            raise gr.Error("Oops, you created a Hugging Face token with read permissions only. You need one with write permissions")
    else:
        raise gr.Error("Please insert a Hugging Face Token (make sure to create it with write permissions)")        
    if(model_name == ""):
        raise gr.Error("Please fill in your model's name")

def swap_hardware(hf_token, hardware="cpu-basic"):
    hardware_url = f"https://huggingface.co/spaces/{os.environ['SPACE_ID']}/hardware"
    headers = { "authorization" : f"Bearer {hf_token}"}
    body = {'flavor': hardware}
    requests.post(hardware_url, json = body, headers=headers)

def swap_sleep_time(hf_token,sleep_time):
    sleep_time_url = f"https://huggingface.co/api/spaces/{os.environ['SPACE_ID']}/sleeptime"
    headers = { "authorization" : f"Bearer {hf_token}"}
    body = {'seconds':sleep_time}
    requests.post(sleep_time_url,json=body,headers=headers)

def get_sleep_time(hf_token):
    sleep_time_url = f"https://huggingface.co/api/spaces/{os.environ['SPACE_ID']}"
    headers = { "authorization" : f"Bearer {hf_token}"}
    response = requests.get(sleep_time_url,headers=headers)
    try:
        gcTimeout = response.json()['runtime']['gcTimeout']
    except:
        gcTimeout = None
    return gcTimeout

def write_to_community(title, description,hf_token): 
    from huggingface_hub import HfApi
    api = HfApi()
    api.create_discussion(repo_id=os.environ['SPACE_ID'], title=title, description=description,repo_type="space", token=hf_token)

def train(progress=gr.Progress(track_tqdm=True), *inputs):
    which_model = inputs[-10]
    if(which_model == ""):
        raise gr.Error("You forgot to select a base model to use")
        
    if is_shared_ui:
        raise gr.Error("This Space only works in duplicated instances")
    if not is_gpu_associated:
        raise gr.Error("Please associate a T4 or A10G GPU for this Space")
    hf_token = inputs[-5]
    model_name = inputs[-7]
    if(is_spaces):
        sleep_time = get_sleep_time(hf_token)
        if sleep_time:
            swap_sleep_time(hf_token, -1)
        remove_attribution_after = inputs[-6]
    else:
        remove_attribution_after = False
    
    if(remove_attribution_after):
        validate_model_upload(hf_token, model_name)
    
    torch.cuda.empty_cache()
    if 'pipe' in globals():
        global pipe, pipe_is_set
        del pipe
        pipe_is_set = False
        gc.collect()
        
    if os.path.exists("output_model"): shutil.rmtree('output_model')
    if os.path.exists("instance_images"): shutil.rmtree('instance_images')
    if os.path.exists("diffusers_model.tar"): os.remove("diffusers_model.tar")
    if os.path.exists("model.ckpt"): os.remove("model.ckpt")
    if os.path.exists("hastrained.success"): os.remove("hastrained.success")
    file_counter = 0
    resolution = 512 if which_model != "v2-1-768" else 768
    for i, input in enumerate(inputs):
        if(i < maximum_concepts-1):
            if(input):
                os.makedirs('instance_images',exist_ok=True)
                files = inputs[i+(maximum_concepts*2)]
                prompt = inputs[i+maximum_concepts]
                if(prompt == "" or prompt == None):
                    raise gr.Error("You forgot to define your concept prompt")
                for j, file_temp in enumerate(files):
                    file = Image.open(file_temp.name)
                    image = pad_image(file)
                    image = image.resize((resolution, resolution))
                    extension = file_temp.name.split(".")[1]
                    image = image.convert('RGB')
                    image.save(f'instance_images/{prompt}_({j+1}).jpg', format="JPEG", quality = 100)
                    file_counter += 1
    
    os.makedirs('output_model',exist_ok=True)
    uses_custom = inputs[-1] 
    type_of_thing = inputs[-4]
    experimental_face_improvement = inputs[-9]
    
    if(uses_custom):
        Training_Steps = int(inputs[-3])
        Train_text_encoder_for = int(inputs[-2])
    else:
        if(type_of_thing == "object"):
            Train_text_encoder_for=30
            
        elif(type_of_thing == "style"):
            Train_text_encoder_for=15
            
        elif(type_of_thing == "person"):
            Train_text_encoder_for=70
        
        Training_Steps = file_counter*150
        if(type_of_thing == "person" and Training_Steps > 2600):
            Training_Steps = 2600 #Avoid overfitting on people's faces
    stptxt = int((Training_Steps*Train_text_encoder_for)/100)
    gradient_checkpointing = True if (experimental_face_improvement or which_model != "v1-5") else False 
    cache_latents = True if which_model != "v1-5" else False
    if (type_of_thing == "object" or type_of_thing == "style" or (type_of_thing == "person" and not experimental_face_improvement)):
        args_general = argparse.Namespace(
            image_captions_filename = True,
            train_text_encoder = True if stptxt > 0 else False,
            stop_text_encoder_training = stptxt,
            save_n_steps = 0,
            pretrained_model_name_or_path = model_to_load,
            instance_data_dir="instance_images",
            class_data_dir=None,
            output_dir="output_model",
            instance_prompt="",
            seed=42,
            resolution=resolution,
            mixed_precision="fp16",
            train_batch_size=1,
            gradient_accumulation_steps=1,
            use_8bit_adam=True,
            learning_rate=2e-6,
            lr_scheduler="polynomial",
            lr_warmup_steps = 0,
            max_train_steps=Training_Steps,     
            gradient_checkpointing=gradient_checkpointing,
            cache_latents=cache_latents,
        )
        print("Starting single training...")
        lock_file = open("intraining.lock", "w")
        lock_file.close()
        try:
            run_training(args_general)
        except Exception as e:
            if(is_spaces):
                title="There was an error on during your training"
                description=f'''
                Unfortunately there was an error during training your {model_name} model. 
                Please check it out below. Feel free to report this issue to [Dreambooth Training](https://huggingface.co/spaces/multimodalart/dreambooth-training): 
                ```
                {str(e)}
                ```
                '''
                swap_hardware(hf_token, "cpu-basic")
                write_to_community(title,description,hf_token)
            
            
    gc.collect()
    torch.cuda.empty_cache()
    if(which_model == "v1-5"):
        print("Adding Safety Checker to the model...")
        shutil.copytree(f"{safety_checker}/feature_extractor", "output_model/feature_extractor", dirs_exist_ok=True)
        shutil.copytree(f"{safety_checker}/safety_checker", "output_model/safety_checker", dirs_exist_ok=True)
        shutil.copy(f"model_index.json", "output_model/model_index.json")
    
    if(not remove_attribution_after):
        swap_sleep_time(hf_token, sleep_time)
        print("Archiving model file...")
        with tarfile.open("diffusers_model.tar", "w") as tar:
            tar.add("output_model", arcname=os.path.basename("output_model"))
        if os.path.exists("intraining.lock"): os.remove("intraining.lock")
        trained_file = open("hastrained.success", "w")
        trained_file.close()
        print("Training completed!")
        return [
            gr.update(visible=False), #progress_bar
            gr.update(visible=True, value=["diffusers_model.tar"]), #result
            gr.update(visible=True), #try_your_model
            gr.update(visible=True), #push_to_hub
            gr.update(visible=True), #convert_button
            gr.update(visible=False), #training_ongoing
            gr.update(visible=True) #completed_training
        ]
    else:
        where_to_upload = inputs[-8]
        push(model_name, where_to_upload, hf_token, which_model, True)
        swap_hardware(hf_token, "cpu-basic")

pipe_is_set = False
def generate(prompt, steps):
    torch.cuda.empty_cache()
    from diffusers import StableDiffusionPipeline
    global pipe_is_set
    if(not pipe_is_set):
        global pipe
        pipe = StableDiffusionPipeline.from_pretrained("./output_model", torch_dtype=torch.float16)
        pipe = pipe.to("cuda")
        pipe_is_set = True
        
    image = pipe(prompt, num_inference_steps=steps).images[0]  
    return(image)

def push(model_name, where_to_upload, hf_token, which_model, comes_from_automated=False):
    validate_model_upload(hf_token, model_name)
    if(not os.path.exists("model.ckpt")):
        convert("output_model", "model.ckpt")
    from huggingface_hub import HfApi, HfFolder, CommitOperationAdd
    from huggingface_hub import create_repo
    model_name_slug = slugify(model_name)
    api = HfApi()
    your_username = api.whoami(token=hf_token)["name"]
    if(where_to_upload == "My personal profile"):    
        model_id = f"{your_username}/{model_name_slug}"
    else:
        model_id = f"sd-dreambooth-library/{model_name_slug}"
        headers = {"Authorization" : f"Bearer: {hf_token}", "Content-Type": "application/json"}
        response = requests.post("https://huggingface.co/organizations/sd-dreambooth-library/share/SSeOwppVCscfTEzFGQaqpfcjukVeNrKNHX", headers=headers)

    print(f"Starting to upload the model {model_id}...")
    images_upload = os.listdir("instance_images")
    image_string = ""
    instance_prompt_list = []
    previous_instance_prompt = ''
    for i, image in enumerate(images_upload):
        instance_prompt = image.split("_")[0]
        if(instance_prompt != previous_instance_prompt):
            title_instance_prompt_string = instance_prompt
            instance_prompt_list.append(instance_prompt)
        else:
            title_instance_prompt_string = ''
        previous_instance_prompt = instance_prompt
        image_string = f'''{title_instance_prompt_string} {"(use that on your prompt)" if title_instance_prompt_string != "" else ""} 
{image_string}![{instance_prompt} {i}](https://huggingface.co/{model_id}/resolve/main/concept_images/{urllib.parse.quote(image)})'''
    readme_text = f'''---
license: creativeml-openrail-m
tags:
- text-to-image
widget:
- text: {instance_prompt_list[0]}
---
### {model_name} Dreambooth model trained by {api.whoami(token=hf_token)["name"]} with [Hugging Face Dreambooth Training Space](https://huggingface.co/spaces/multimodalart/dreambooth-training) with the {which_model} base model

You run your new concept via `diffusers` [Colab Notebook for Inference](https://colab.research.google.com/github/huggingface/notebooks/blob/main/diffusers/sd_dreambooth_inference.ipynb). Don't forget to use the concept prompts! 

Sample pictures of:
{image_string}
'''
    #Save the readme to a file
    readme_file = open("model.README.md", "w")
    readme_file.write(readme_text)
    readme_file.close()
    #Save the token identifier to a file
    text_file = open("token_identifier.txt", "w")
    text_file.write(', '.join(instance_prompt_list))
    text_file.close()
    try:
        create_repo(model_id,private=True, token=hf_token)
    except:
        import time
        epoch_time = str(int(time.time()))
        create_repo(f"{model_id}-{epoch_time}", private=True,token=hf_token)
    operations = [
        CommitOperationAdd(path_in_repo="token_identifier.txt", path_or_fileobj="token_identifier.txt"),
        CommitOperationAdd(path_in_repo="README.md", path_or_fileobj="model.README.md"),
        CommitOperationAdd(path_in_repo=f"model.ckpt",path_or_fileobj="model.ckpt")
    ]
    api.create_commit(
    repo_id=model_id,
    operations=operations,
    commit_message=f"Upload the model {model_name}",
    token=hf_token
    )
    api.upload_folder(
    folder_path="output_model",
    repo_id=model_id,
    token=hf_token
    )
    api.upload_folder(
    folder_path="instance_images",
    path_in_repo="concept_images",
    repo_id=model_id,
    token=hf_token
    )
    if is_spaces:
        if(not comes_from_automated):
            extra_message = "Don't forget to remove the GPU attribution after you play with it."
        else:
            extra_message = "The GPU has been removed automatically as requested, and you can try the model via the model page"
        title=f"Your model {model_name} has finished trained from the Dreambooth Train Spaces!"
        description=f"Your model has been successfully uploaded to: https://huggingface.co/{model_id}. {extra_message}"
        write_to_community(title, description, hf_token)
        #api.create_discussion(repo_id=os.environ['SPACE_ID'], title=f"Your model {model_name} has finished trained from the Dreambooth Train Spaces!", description=f"Your model has been successfully uploaded to: https://huggingface.co/{model_id}. {extra_message}",repo_type="space", token=hf_token)
    print("Model uploaded successfully!")
    return [gr.update(visible=True, value=f"Successfully uploaded your model. Access it [here](https://huggingface.co/{model_id})"), gr.update(visible=True, value=["diffusers_model.tar", "model.ckpt"])]

def convert_to_ckpt():
    if 'pipe' in globals():
        global pipe, pipe_is_set
        del pipe
        pipe_is_set = False
        gc.collect()
    convert("output_model", "model.ckpt")
    return gr.update(visible=True, value=["diffusers_model.tar", "model.ckpt"])

def check_status(top_description):
    if os.path.exists("hastrained.success"):
        if is_spaces:
            update_top_tag = gr.update(value=f'''
            <div class="gr-prose" style="max-width: 80%">
                <h2>Your model has finished training ✅</h2>
                <p>Yay, congratulations on training your model. Scroll down to play with with it, save it (either downloading it or on the Hugging Face Hub). Once you are done, your model is safe, and you don't want to train a new one, go to the <a href="https://huggingface.co/spaces/{os.environ['SPACE_ID']}" target="_blank">settings page</a> and downgrade your Space to a CPU Basic</p> 
            </div>
            ''')
        else:
            update_top_tag = gr.update(value=f'''
            <div class="gr-prose" style="max-width: 80%">
                <h2>Your model has finished training ✅</h2>
                <p>Yay, congratulations on training your model. Scroll down to play with with it, save it (either downloading it or on the Hugging Face Hub).</p> 
            </div>
            ''')
        show_outputs = True
    elif os.path.exists("intraining.lock"):
        update_top_tag = gr.update(value='''
        <div class="gr-prose" style="max-width: 80%">
            <h2>Don't worry, your model is still training! ⌛</h2>
            <p>You closed the tab while your model was training, but it's all good! It is still training right now. You can click the "Open logs" button above here to check the training status. Once training is done, reload this tab to interact with your model</p> 
        </div>
        ''')
        show_outputs = False
    else:
        update_top_tag = gr.update(value=top_description)
        show_outputs = False
    if os.path.exists("diffusers_model.tar"):
       update_files_tag = gr.update(visible=show_outputs, value=["diffusers_model.tar"])
    else:
       update_files_tag = gr.update(visible=show_outputs)
    return [
        update_top_tag, #top_description
        gr.update(visible=show_outputs), #try_your_model
        gr.update(visible=show_outputs), #push_to_hub
        update_files_tag, #result
        gr.update(visible=show_outputs), #convert_button
    ]

def checkbox_swap(checkbox):
    return [gr.update(visible=checkbox), gr.update(visible=checkbox), gr.update(visible=checkbox), gr.update(visible=checkbox)]

with gr.Blocks(css=css) as demo:
    with gr.Box():
        if is_shared_ui:
            top_description = gr.HTML(f'''
                <div class="gr-prose" style="max-width: 80%">
                <h2>Attention - This Space doesn't work in this shared UI</h2>
                <p>For it to work, you can either run locally or duplicate the Space and run it on your own profile using a (paid) private T4-small or A10G-small GPU for training. A T4 costs US$0.60/h, so it should cost < US$1 to train most models using default settings with it!&nbsp;&nbsp;<a class="duplicate-button" style="display:inline-block" target="_blank" href="https://huggingface.co/spaces/{os.environ['SPACE_ID']}?duplicate=true"><img src="https://img.shields.io/badge/-Duplicate%20Space-blue?labelColor=white&style=flat&logo=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAP5JREFUOE+lk7FqAkEURY+ltunEgFXS2sZGIbXfEPdLlnxJyDdYB62sbbUKpLbVNhyYFzbrrA74YJlh9r079973psed0cvUD4A+4HoCjsA85X0Dfn/RBLBgBDxnQPfAEJgBY+A9gALA4tcbamSzS4xq4FOQAJgCDwV2CPKV8tZAJcAjMMkUe1vX+U+SMhfAJEHasQIWmXNN3abzDwHUrgcRGmYcgKe0bxrblHEB4E/pndMazNpSZGcsZdBlYJcEL9Afo75molJyM2FxmPgmgPqlWNLGfwZGG6UiyEvLzHYDmoPkDDiNm9JR9uboiONcBXrpY1qmgs21x1QwyZcpvxt9NS09PlsPAAAAAElFTkSuQmCC&logoWidth=14" alt="Duplicate Space"></a></p>
                <img class="instruction" src="file=duplicate.png"> 
                <img class="arrow" src="file=arrow.png" />
                </div>
            ''')
        elif(is_spaces):
            if(is_gpu_associated):
                top_description = gr.HTML(f'''
                        <div class="gr-prose" style="max-width: 80%">
                        <h2>You have successfully associated a {which_gpu} GPU to the Dreambooth Training Space 🎉</h2>
                        <p>You can now train your model! You will be billed by the minute from when you activated the GPU until when it is turned it off.</p> 
                        </div>
                ''')
            else:
                top_description = gr.HTML(f'''
                        <div class="gr-prose" style="max-width: 80%">
                        <h2>You have successfully duplicated the Dreambooth Training Space 🎉</h2>
                        <p>There's only one step left before you can train your model: <a href="https://huggingface.co/spaces/{os.environ['SPACE_ID']}/settings" style="text-decoration: underline" target="_blank">attribute a <b>T4-small or A10G-small GPU</b> to it (via the Settings tab)</a> and run the training below. You will be billed by the minute from when you activate the GPU until when it is turned it off.</p> 
                        </div>
                ''')
        else:
            top_description = gr.HTML(f'''
                    <div class="gr-prose" style="max-width: 80%">
                    <h2>You have successfully cloned the Dreambooth Training Space locally 🎉</h2>
                    <p>Do a <code>pip install requirements-local.txt</code></p> 
                    </div>
                ''')
    gr.Markdown("# Dreambooth Training UI 💭")
    gr.Markdown("Customize Stable Diffusion v1 or v2 (ⁿᵉʷ!) by giving it a few examples of a concept. Based on the [🧨 diffusers](https://github.com/huggingface/diffusers) implementation, additional techniques from [TheLastBen](https://github.com/TheLastBen/diffusers) and [ShivamShrirao](https://github.com/ShivamShrirao/diffusers)")
    
    with gr.Row() as what_are_you_training:
        type_of_thing = gr.Dropdown(label="What would you like to train?", choices=["object", "person", "style"], value="object", interactive=True)
        with gr.Column():
            base_model_to_use = gr.Dropdown(label="Which base model would you like to use?", choices=["v1-5", "v2-1-512", "v2-1-768"], value="v1-5", interactive=True)

    #Very hacky approach to emulate dynamically created Gradio components   
    with gr.Row() as upload_your_concept:
        with gr.Column():
            thing_description = gr.Markdown("You are going to train an `object`, please upload 5-10 images of the object you are planning on training on from different angles/perspectives. You must have the right to do so and you are liable for the images you use, example")
            thing_experimental = gr.Checkbox(label="Improve faces (prior preservation) - can take longer training but can improve faces", visible=False, value=False)
            thing_image_example = gr.HTML('''<img src="file=cat-toy.png" />''')
            things_naming = gr.Markdown("You should name your concept with a unique made up word that has low chance of the model already knowing it (e.g.: `cttoy` here). Images will be automatically cropped to 512x512.")
            
        with gr.Column():
            file_collection = []
            concept_collection = []
            buttons_collection = []
            delete_collection = []
            is_visible = []

            row = [None] * maximum_concepts
            for x in range(maximum_concepts):
                ordinal = lambda n: "%d%s" % (n, "tsnrhtdd"[(n // 10 % 10 != 1) * (n % 10 < 4) * n % 10::4])
                if(x == 0):
                    visible = True
                    is_visible.append(gr.State(value=True))
                else:
                    visible = False
                    is_visible.append(gr.State(value=False))

                file_collection.append(gr.File(file_types=["image"], label=f'''Upload the images for your {ordinal(x+1) if (x>0) else ""} concept''', file_count="multiple", interactive=True, visible=visible))
                with gr.Column(visible=visible) as row[x]:
                    concept_collection.append(gr.Textbox(label=f'''{ordinal(x+1) if (x>0) else ""} concept prompt - use a unique, made up word to avoid collisions'''))  
                    with gr.Row():
                        if(x < maximum_concepts-1):
                            buttons_collection.append(gr.Button(value="Add +1 concept", visible=visible))
                        if(x > 0):
                            delete_collection.append(gr.Button(value=f"Delete {ordinal(x+1)} concept"))
            
            counter_add = 1
            for button in buttons_collection:
                if(counter_add < len(buttons_collection)):
                    button.click(lambda:
                    [gr.update(visible=True),gr.update(visible=True), gr.update(visible=False), gr.update(visible=True), True, None],
                    None, 
                    [row[counter_add], file_collection[counter_add], buttons_collection[counter_add-1], buttons_collection[counter_add], is_visible[counter_add], file_collection[counter_add]], queue=False)
                else:
                    button.click(lambda:[gr.update(visible=True),gr.update(visible=True), gr.update(visible=False), True], None, [row[counter_add], file_collection[counter_add], buttons_collection[counter_add-1], is_visible[counter_add]], queue=False)
                counter_add += 1
            
            counter_delete = 1
            for delete_button in delete_collection:
                if(counter_delete < len(delete_collection)+1):
                    delete_button.click(lambda:[gr.update(visible=False),gr.update(visible=False), gr.update(visible=True), False], None, [file_collection[counter_delete], row[counter_delete], buttons_collection[counter_delete-1], is_visible[counter_delete]], queue=False)
                counter_delete += 1
                  
    with gr.Accordion("Custom Settings", open=False):
        swap_auto_calculated = gr.Checkbox(label="Use custom settings")
        gr.Markdown("If not checked, the % of frozen encoder will be tuned automatically to whether you are training an `object`, `person` or `style`. The text-encoder is frozen after 10% of the steps for a style, 30% of the steps for an object and 75% trained for persons. The number of steps varies between 1400 and 2400 depending on how many images uploaded. If you see too many artifacts in your output, it means it may have overfit and you need less steps. If your results aren't really what you wanted, it may be underfitting and you need more steps.")
        steps = gr.Number(label="How many steps", value=2400)
        perc_txt_encoder = gr.Number(label="Percentage of the training steps the text-encoder should be trained as well", value=30)
        
    with gr.Box(visible=False) as training_summary:
        training_summary_text = gr.HTML("", visible=True, label="Training Summary")
        is_advanced_visible = True if is_spaces else False
        training_summary_checkbox = gr.Checkbox(label="Automatically remove paid GPU attribution and upload model to the Hugging Face Hub after training", value=True, visible=is_advanced_visible)
        training_summary_model_name = gr.Textbox(label="Name of your model", visible=True)
        training_summary_where_to_upload = gr.Dropdown(["My personal profile", "Public Library"], value="My personal profile", label="Upload to", visible=True)
        training_summary_token_message = gr.Markdown("[A Hugging Face write access token](https://huggingface.co/settings/tokens), go to \"New token\" -> Role : Write. A regular read token won't work here.", visible=True)            
        training_summary_token = gr.Textbox(label="Hugging Face Write Token", type="password", visible=True)
        
    train_btn = gr.Button("Start Training")
    progress_bar = gr.Textbox(visible=False)
    if(is_shared_ui):
        training_ongoing = gr.Markdown("## This Space only works in duplicated instances. Please duplicate it and try again!", visible=False)
    elif(not is_gpu_associated):
        training_ongoing = gr.Markdown("## Oops, you haven't associated your T4 or A10G GPU to this Space. Visit the Settings tab, associate and try again.", visible=False)
    else:
        training_ongoing = gr.Markdown("## Training is ongoing ⌛... You can close this tab if you like or just wait. If you did not check the `Remove GPU After training`, you can come back here to try your model and upload it after training. Don't forget to remove the GPU attribution after you are done. ", visible=False)
    
    
    #Post-training UI
    completed_training = gr.Markdown('''# ✅ Training completed. 
    ### Don't forget to remove the GPU attribution after you are done trying and uploading your model''', visible=False)
    
    with gr.Row():
        with gr.Box(visible=False) as try_your_model:
            gr.Markdown("## Try your model")
            prompt = gr.Textbox(label="Type your prompt")
            result_image = gr.Image()
            inference_steps = gr.Slider(minimum=1, maximum=150, value=50, step=1)
            generate_button = gr.Button("Generate Image")
        
        with gr.Box(visible=False) as push_to_hub:
            gr.Markdown("## Push to Hugging Face Hub")
            model_name = gr.Textbox(label="Name of your model", placeholder="Tarsila do Amaral Style")
            where_to_upload = gr.Dropdown(["My personal profile", "Public Library"], label="Upload to")
            gr.Markdown("[A Hugging Face write access token](https://huggingface.co/settings/tokens), go to \"New token\" -> Role : Write. A regular read token won't work here.")
            hf_token = gr.Textbox(label="Hugging Face Write Token", type="password")
            
            push_button = gr.Button("Push to the Hub")
    
    result = gr.File(label="Download the uploaded models in the diffusers format", visible=True)
    success_message_upload = gr.Markdown(visible=False)
    convert_button = gr.Button("Convert to CKPT", visible=False)
    
    #Swap the examples and the % of text encoder trained depending if it is an object, person or style
    type_of_thing.change(fn=swap_text, inputs=[type_of_thing, base_model_to_use], outputs=[thing_description, thing_image_example, things_naming, perc_txt_encoder, thing_experimental], queue=False, show_progress=False)
    
    #Swap the base model
    
    base_model_to_use.change(fn=swap_text, inputs=[type_of_thing, base_model_to_use], outputs=[thing_description, thing_image_example, things_naming, perc_txt_encoder, thing_experimental], queue=False, show_progress=False)
    #base_model_to_use.change(fn=visualise_progress_bar, inputs=[], outputs=progress_bar)
    base_model_to_use.change(fn=swap_base_model, inputs=base_model_to_use, outputs=[])
    #Update the summary box below the UI according to how many images are uploaded and whether users are using custom settings or not 
    for file in file_collection:
        #file.change(fn=update_steps,inputs=file_collection, outputs=steps)
        file.change(fn=count_files, inputs=file_collection+[thing_experimental]+[base_model_to_use]+[type_of_thing]+[steps]+[perc_txt_encoder]+[swap_auto_calculated], outputs=[training_summary, training_summary_text], queue=False)
    
    thing_experimental.change(fn=count_files, inputs=file_collection+[thing_experimental]+[base_model_to_use]+[type_of_thing]+[steps]+[perc_txt_encoder]+[swap_auto_calculated], outputs=[training_summary, training_summary_text], queue=False)
    base_model_to_use.change(fn=count_files, inputs=file_collection+[thing_experimental]+[base_model_to_use]+[type_of_thing]+[steps]+[perc_txt_encoder]+[swap_auto_calculated], outputs=[training_summary, training_summary_text], queue=False)
    steps.change(fn=count_files, inputs=file_collection+[thing_experimental]+[base_model_to_use]+[type_of_thing]+[steps]+[perc_txt_encoder]+[swap_auto_calculated], outputs=[training_summary, training_summary_text], queue=False)
    perc_txt_encoder.change(fn=count_files, inputs=file_collection+[thing_experimental]+[base_model_to_use]+[type_of_thing]+[steps]+[perc_txt_encoder]+[swap_auto_calculated], outputs=[training_summary, training_summary_text], queue=False)
    
    #Give more options if the user wants to finish everything after training
    if(is_spaces):
        training_summary_checkbox.change(fn=checkbox_swap, inputs=training_summary_checkbox, outputs=[training_summary_token_message, training_summary_token, training_summary_model_name, training_summary_where_to_upload],queue=False, show_progress=False)
    #Add a message for while it is in training
    
    #train_btn.click(lambda:gr.update(visible=True), inputs=None, outputs=training_ongoing)
    
    #The main train function
    train_btn.click(lambda:gr.update(visible=True), inputs=[], outputs=progress_bar)
    train_btn.click(fn=train, inputs=is_visible+concept_collection+file_collection+[base_model_to_use]+[thing_experimental]+[training_summary_where_to_upload]+[training_summary_model_name]+[training_summary_checkbox]+[training_summary_token]+[type_of_thing]+[steps]+[perc_txt_encoder]+[swap_auto_calculated], outputs=[progress_bar, result, try_your_model, push_to_hub, convert_button, training_ongoing, completed_training], queue=False)
    
    #Button to generate an image from your trained model after training
    generate_button.click(fn=generate, inputs=[prompt, inference_steps], outputs=result_image, queue=False)
    #Button to push the model to the Hugging Face Hub
    push_button.click(fn=push, inputs=[model_name, where_to_upload, hf_token, base_model_to_use], outputs=[success_message_upload, result], queue=False)
    #Button to convert the model to ckpt format 
    convert_button.click(fn=convert_to_ckpt, inputs=[], outputs=result, queue=False)
    
    #Checks if the training is running
    demo.load(fn=check_status, inputs=top_description, outputs=[top_description, try_your_model, push_to_hub, result, convert_button], queue=False, show_progress=False)

demo.queue(default_enabled=False).launch(debug=True)