import gradio as gr
import base64
from gpt_reader.pdf_reader import PaperReader
from gpt_reader.prompt import BASE_POINTS


class GUI:
    def __init__(self):
        self.api_key = ""
        self.session = ""

    def analyse(self, api_key, pdf_file):
        self.session = PaperReader(api_key, points_to_focus=BASE_POINTS)
        return self.session.read_pdf_and_summarize(pdf_file)

    def ask_question(self, question):
        if self.session == "":
            return "Please upload PDF file first!"
        return self.session.question(question)

with open("./logo.png", "rb") as f:
    image_data = f.read()
    image_base64 = base64.b64encode(image_data).decode("utf-8")
title = f"""
    <h2 style="background-image: linear-gradient(to right, #3A5FCD, #87CEFA); -webkit-background-clip: text;
        -webkit-text-fill-color: transparent; text-align: center;">
        ChatPDF-GUI
    </h2>
    """
description = f"""
<div style="display: flex; align-items: center; justify-content: center; flex-direction: column;">
    <p style="font-size: 18px; color: #4AAAFF; text-align: center;">
            Upload your pdf and let our model read it to you!"
    </p>
    <div style="display: flex; align-items: center; margin-bottom: 0px;">
        <img src='data:image/jpeg;base64,{image_base64}' width='50' height='30' style="margin-right: 5px;"/>
        <p style="font-size: 14px; color: #555;">
            Disclaimer: The purpose of this application is solely for demonstration. 1001epochs does not claim ownership for the results. Contact: contact@1001epochs.co.uk for full solution.
        </p>
    </div>
</div>
"""
with gr.Blocks() as demo:
    gr.HTML(title)
    gr.HTML(description)
    with gr.Tab("Upload PDF File"):
        pdf_input = gr.File(label="PDF File")
        api_input = gr.Textbox(label="OpenAI API Key")
        result = gr.Textbox(label="PDF Summary")
        upload_button = gr.Button("Start Analyse")
    with gr.Tab("Ask question about your PDF"):
        question_input = gr.Textbox(label="Your Question", placeholder="Authors of this paper?")
        answer = gr.Textbox(label="Answer")
        ask_button = gr.Button("Ask")
    with gr.Accordion("About this project"):
        gr.Markdown(
            """Simply upload your document and let our model read it within seconds!""")

    app = GUI()
    upload_button.click(fn=app.analyse, inputs=[api_input, pdf_input], outputs=result)
    ask_button.click(app.ask_question, inputs=question_input, outputs=answer)

if __name__ == "__main__":
    demo.title = "CHATGPT-PAPER-READER"
    demo.launch()  # add "share=True" to share CHATGPT-PAPER-READER app on Internet.