import gradio as gr
import core

def process_pdf_and_text(pdf_file_path, user_text):
    print(f"[INFO] The pdf file is in the {pdf_file_path}")
    if not hasattr(process_pdf_and_text,"_called"):
        core.process_pdf(pdf_file_path)
        process_pdf_and_text._called = True
    
    result = core.process_query(user_text)
    return result

def main():
    # input components
    pdf_input = gr.File(label="Upload PDF File")
    text_input = gr.TextArea(label="Enter the query")
    # output component
    output_text = gr.TextArea()
    
    # app interface
    demo = gr.Interface(
        fn=process_pdf_and_text,
        inputs=[pdf_input, text_input],
        outputs=output_text,
        title="Chat With PDF",
        description="RAG based Chat with pdf"
    )

    demo.launch()
    
if __name__ == "__main__":
    main()