app.py

from gradio_client import Client
import gradio as gr
import os, uuid, json, random, time
import datetime
from huggingface_hub import hf_api, CommitScheduler, HfApi
from pathlib import Path

# deckify_private = "ByMatthew/deckify_private"
deckify_private = "eth-zurich-cle/deckify_private"

repo_id = "eth-zurich-cle/scideck-dataset"

feedback_file = Path("output_data/") / f"output_{uuid.uuid4()}.json"
feedback_folder = feedback_file.parent

scheduler = CommitScheduler(
    # repo_id="eth-zurich-cle/deckify-dataset",
    repo_id=repo_id,
    repo_type="dataset",
    folder_path=feedback_folder,
    path_in_repo="output_data",
    every=10,
)

# scheduler = CommitScheduler(
#     repo_id="eth-zurich-cle/deckify-dataset",
#     repo_type="dataset",
#     folder_path=feedback_folder,
#     path_in_repo="input_data",
#     every=10,
# )

api = HfApi()

def check_password(username, password):
    if password == os.environ["ACCESS"]:
        return True
    else:
        return False

def func(file, number_of_pages, secret):
    
    if secret != os.environ["ACCESS"]:
        return "Wrong password, please try again"

    date_string = datetime.datetime.now().strftime("%Y-%m-%d-%H-%M-%S")
    
    # use only the filename form an absolute path basename
    dir, filename = os.path.split(file)
    print(f"dir: {dir}, filename: {filename}")
    
    unique_filename = f"{filename.split('.')[0]}_{date_string}.{filename.split('.')[-1]}"
    
    print(unique_filename)
    
    api.upload_file(
        # path_or_fileobj="/path/to/local/folder/README.md",
        path_or_fileobj=file,
        path_in_repo=f"input_files/{unique_filename}",
        repo_id=repo_id,
        repo_type="dataset",
    )
    
    
    space_runtime = hf_api.get_space_runtime(deckify_private, token=read_key)
    print(f"Space runtime: {space_runtime}")
    
    if not space_runtime.stage == "RUNNING": # might need to check lowercase or something
        
        space_runtime_after_restart = hf_api.restart_space(deckify_private, token=read_key)
        print(f"Space runtime after restart: {space_runtime_after_restart}")
        
        
        max_retries = 20
        retry_delay = 10
        success = False
        for i in range(max_retries):
            space_runtime = hf_api.get_space_runtime(deckify_private, token=read_key)
            print(f"Space runtime: {space_runtime}")
            if space_runtime.stage == "RUNNING":
                success = True
                break
            time.sleep(retry_delay)
        
        if not success:
            return "Failed to start the private space in time. Please try again later."
        
    client = Client(deckify_private, hf_token=read_key)
    
    print(f"Client: {client}")


    # output, parsed_document = client.predict(file, number_of_pages)
    output, latex_output, latex_time, openai_time = client.predict(file, number_of_pages)
    
    if "Error" in output:
        return output   
    # generate a random sequence of numbers
    # s = "".join([str(random.randint(0, 9)) for i in range(10)])
    # with open(f"{s}.tex", "w", encoding="utf-8") as f:
    #     f.write(text)
    
    
    save_output(unique_filename, output, number_of_pages, date_string)

    temp_string = "% The following slides are generated with [[SCIDECK]](https://huggingface.co/spaces/eth-zurich-cle/Scideck)"
    temp_string += "\n% Generated on " + date_string
    temp_string += "\n%" + "-"*100 + "\n"
    output = temp_string + output 
    
    
    return output

def save_output(unique_filename: str, output: str, num_pages:int, date_string: str, latex_output: str, latex_time: float, openai_time: float) -> None:

    # Append outputs and using a thread lock to avoid concurrent writes from different users.
    with scheduler.lock:
        with feedback_file.open("a") as f:
            f.write(json.dumps({"input_name": unique_filename, "output": output, 
                                "num_pages": num_pages, "timestamp": date_string,
                                "latex": latex_output, "latex_extraction_time": latex_time, 
                                "openai_call_time": openai_time}))
            f.write("\n")


def upload_file(file):
    print(file)
    return file.name

# 📝 If you get an error message, you can send me email with the PDF file attached to this email address: <b>nkoisheke [at] ethz [dot] ch</b>, and I will generate the slides for you. If there are any other issues or questions, please do not hesitate to contact me 🤗 <br>
description = r"""
<h3> SCIDECK is a tool that allows you to convert your PDF files into a presentation deck.</h3>
<br>

❗️❗️❗️[<b>Important</b>] Instructions:<br>
1️⃣ <b>Upload the PDF document</b>: Select the PDF file you want to convert into slides.<br>
2️⃣ <b>Specify the number of pages</b>: Indicate the range of pages you'd like to include in the slide generation. <b>Set it to 0</b> if you want to include all pages. <br>
3️⃣ <b>Enter the password provided in the invite email.</b><br>
4️⃣ <b>Click the Generate button</b>: Initiate the slide generation process by clicking the designated "Generate" button.<br>
5️⃣ <b>Be patient 🙂</b>: Generating the slides could take between 1 minute and 5 minutes.<br>
6️⃣ <b>Download the slides</b>: Once the slides are generated, you can download them by clicking the "Copy" button.<br>
7️⃣ <b>Feedback</b>: Please fill out the following [[Feedback Form]](https://docs.google.com/forms/d/e/1FAIpQLScFVZJeNSa9L4t8z5B8whzoLvlNpb95bQdroIPID7aNdv0i4w/viewform?fbzx=-3656849655817576014) <br>

📝 If you have any other issues or questions, please do not hesitate to contact us at ..... 🤗 <br>

Disclaimer: The uploaded files along with the generated outputs will be stored in order to evaluate and improve the service. <br>

Note: If the background process is not running, it may take up to 3 min for it to start. <br>

ver 0.1
"""
# 🖼️ Some examples of slides generated using <b>SCIDECK</b> are shown below: <br>
# 1. Batch Normalization: Accelerating Deep Network Training by Reducing Internal Covariate Shift [[Paper]](https://arxiv.org/pdf/1502.03167.pdf) [[Slides]](https://drive.google.com/file/d/1Zt5FFH0nKxut-LyEr9pNAIdtgR_lBtIj/view?usp=sharing) <br>
# 2. Attention Is All You Need [[Paper]](https://arxiv.org/pdf/1706.03762.pdf) [[Slides]](https://drive.google.com/file/d/1xKgohh_QKV9pD_XjDuXR566h0VJ1S7WI/view?usp=sharing) <br>
# 3. Denoising Diffusion Probabilistic Models [[Paper]](https://arxiv.org/pdf/2006.11239.pdf) [[Slides]](https://drive.google.com/file/d/1D2ZfoJpHR3kP0JdsYyjxUq-vjVMV-KTO/view?usp=sharing) <br>

read_key = os.environ.get("HF_TOKEN", None)

if __name__ == "__main__":
    # client = Client.duplicate("ByMatthew/deckify_private", hf_token=read_key)
    
    temp = "<h1> SCIDECK: Generate slides (LaTeX Beamer) from PDF</h1>"
    with gr.Blocks() as demo:
        gr.Markdown(temp)
        gr.Image("demo.png", width=600, show_download_button=False, show_label=False)
        gr.Markdown(description)
        
        file_output = gr.File()
        upload_button = gr.UploadButton("Click to Upload a PDF File", file_types=["file"], file_count="single", size="sm")
        upload_button.upload(upload_file, upload_button, file_output)

        number_of_pages = gr.Number(label="Number of pages")
        secret = gr.Textbox(label="Password", type="password")
        output = gr.Textbox(label="Output", show_copy_button=True, interactive=False)
        genereate_slides_btn = gr.Button("Generate slides")
        genereate_slides_btn.click(fn=func, inputs=[upload_button, number_of_pages, secret], outputs=output, api_name="genereate_slides")
    
    demo.queue(max_size=30)
    demo.launch()