import asyncio
from pydantic_ai.result import ResultData, RunResult
import streamlit as st
from pydantic_ai import Agent
from pydantic_ai.models.groq import GroqModel
import nest_asyncio
import pdfplumber
from transformers import pipeline
import torch
import os
import presentation as customClass
from streamlit_pdf_viewer import pdf_viewer


api_key = os.getenv("API_KEY")
data = []
last_message = ''



# to generate ppt
model = GroqModel('llama-3.1-70b-versatile', api_key = api_key)


# to summarize
summarizer = pipeline("summarization", model="facebook/bart-large-cnn")


def split_long_string(long_string, chunk_size=3500):
    string_data =  "".join(long_string)
    words = string_data.split()
    chunks = [' '.join(words[i:i + chunk_size]) for i in range(0, len(words), chunk_size)]
    
    return chunks


async def ppt_content(data):
    agent = Agent(model,
    result_type=customClass.PPT,
    system_prompt=(
        "You are an expert in making power-point perssentation",
        "Create 6 sliders",
        "Title Slide: short into about the presentation",
        "Methodology Slide: Summarize the methodology in detail",
        "Results Slide: Present key findings in detail in simple text and bullet points.",
        "Discussion Slide: Summarize the implications and limitations.",
        "Conclusion Slide: State the overall conclusion.",
        "Reference Slide: Include all citations used.",
        "Each slide should be seperate",
        "Each slide should have 4 parts :"
        "1. Title : title of the slide ",
        "2. Text: he detailed description or narrative content of the slide. This should include key information, explanations, or supporting arguments. Keep it concise yet informative to avoid overwhelming the audience.",
        "3. Bullet point: A list of bullet points summarizing key information on the slide. Each bullet point should be detail, long, and highlight a specific aspect of the slide's topic. ideally, limit to 3-5 points.",
        "4. Image Suggestion: A prompt for generating an image to complement the slide content. Describe the desired visual in detail, including elements, style, and relevance to the topic. Ensure the prompt is actionable for AI tools.", 
    ))
    listOfString = split_long_string(data)
    for i, chunk in enumerate(listOfString):
        print(f"Chunk {i}:\n{chunk}\n")

    # for x in listOfString:
    #     result: RunResult[str] = RunResult(_all_messages:[])
    #     result = agent.run_sync(user_prompt = x,message_history = result.new_messages())
    
    
    
    result_1 = agent.run_sync(user_prompt = data)
    #result_2 = agent.run_sync(user_prompt = listOfString[1],message_history=result_1.new_messages())
    
    print(result_1.data)
    

def ai_ppt(data):
    #call summerizer to summerize pdf 
    summary = summarizer(data, max_length=130, min_length=30, do_sample=False)
    print(summary)
    asyncio.run(ppt_content(data=data))


def extract_data(feed):
    
    with pdfplumber.open(feed) as pdf:
        pages = pdf.pages
        for p in pages:
            data.append(p.extract_text())
        
    return None 



# if data is not None:
#     st.caption(data)
#     ai_ppt(data=data)

def main():
    uploaded_file = st.file_uploader('Choose your .pdf file', type="pdf")
    if uploaded_file is not None:
        extract_data(uploaded_file)
        
        binary_data = uploaded_file.getvalue()
        pdf_viewer(input=binary_data,
                width=700)
    if st.button("Make PPT"):
        ai_ppt(data)

if __name__ == '__main__':
    import asyncio
    nest_asyncio.apply()
    main()