from langchain.document_loaders import PyPDFLoader
import gradio as gr
loader = PyPDFLoader("whitepaper.pdf") 
documents = loader.load()

def summarize_pdf (pdf_file_path, custom_prompt=""):
    loader = PyPDFLoader(pdf_file_path)
    docs = loader.load_and_split()
    chain = load_summarize_chain(llm, chain_type="map_reduce")
    summary = chain.run(docs)
    
    return summary

def main():
    input_pdf_path = gr.inputs.Textbox(label="Enter the PDF file path")
    output_summary = gr.outputs.Textbox(label="Summary")
    
    interface = gr.Interface(
        fn = summarize_pdf,
        inputs = input_pdf_path,
        outputs = output_summary,
        title = "PDF Summarizer",
        description = "This app allows you to summarize your PDF files.",
    )
    demo.launch(share=True)