src/interface.py

import gradio as gr


def create_demo():
    def on_upload(file, slider):
        # Disable the slider when a file is uploaded
        return gr.update(disabled=True), "PDF uploaded!"

    with gr.Blocks(title="RAG Chatbot Q&A", theme="Soft") as demo:
        with gr.Column():
            with gr.Row():
                chat_history = gr.Chatbot(value=[], elem_id='chatbot', height=680)
                show_img = gr.Image(label='Overview', height=680)

        with gr.Row():
            with gr.Column():  # Adjust scale as needed
                slider1 = gr.Slider(minimum=256, maximum=1024, value=256, label="Chunk Size")

        with gr.Row():
            with gr.Column(scale=0.60):
                text_input = gr.Textbox(show_label=False, placeholder="Type here to ask your PDF", container=False)
            with gr.Column(scale=0.20):
                submit_button = gr.Button('Send')
            with gr.Column(scale=0.20):
                uploaded_pdf = gr.UploadButton("📁 Upload PDF", file_types=[".pdf"])

        # Linking the upload button to the slider update
        uploaded_pdf.change(on_upload, inputs=[uploaded_pdf], outputs=[slider1])

    return demo, chat_history, show_img, text_input, submit_button, uploaded_pdf, slider1


if __name__ == '__main__':
    demo, chatbot, show_img, text_input, submit_button, uploaded_pdf, slider1 = create_demo()
    demo.launch()