import streamlit as st 
import ctranslate2 
from transformers import AutoTokenizer 
from huggingface_hub import snapshot_download 
from codeexecutor import postprocess_completion,get_majority_vote  

# Define the model and tokenizer loading
model_prompt = "Solve the following mathematical problem: "
tokenizer = AutoTokenizer.from_pretrained("AI-MO/NuminaMath-7B-TIR")
model_path = snapshot_download(repo_id="Makima57/deepseek-math-Numina")
generator = ctranslate2.Generator(model_path, device="cpu", compute_type="int8")
iterations=10  

# Function to generate predictions using the model
def get_prediction(question):
    input_text = model_prompt + question
    input_tokens = tokenizer.tokenize(input_text)
    results = generator.generate_batch([input_tokens])
    output_tokens = results[0].sequences[0]
    predicted_answer = tokenizer.convert_tokens_to_string(output_tokens)
    return predicted_answer  

# Function to perform majority voting across multiple predictions
def majority_vote(question, num_iterations=10):
    all_predictions = []
    all_answer=[]
    for _ in range(num_iterations):
        prediction = get_prediction(question)
        answer=postprocess_completion(prediction,True,True)
        all_predictions.append(prediction)
        all_answer.append(answer)
    majority_voted_pred = max(set(all_predictions), key=all_predictions.count)
    majority_voted_ans=get_majority_vote(all_answer)
    return majority_voted_pred, all_predictions,majority_voted_ans  

# Streamlit app UI
st.title("Math Question Solver")  
st.write("Enter a math question to get the model prediction and see all generated answers.")  

# Input field for math question
question = st.text_input("Math Question", placeholder="Enter your math question here...")  

# Input field for correct answer
correct_answer = st.text_input("Correct Answer", placeholder="Enter the correct answer here...")  

# Button to trigger prediction
if st.button("Get Prediction"):
    if question and correct_answer:
        final_prediction, all_predictions,final_answer = majority_vote(question, iterations)
        st.write("Question: ", question)
        st.write("Generated Answers (10 iterations): ", all_predictions)
        st.write("Majority-Voted Prediction: ", final_prediction)
        st.write("Correct solution: ", correct_answer)
        st.write("Majority answer: ", final_answer)
    else:
        st.error("Please enter both math question and correct answer")