import streamlit as st
import requests

# Set up API constants
API_KEY = "YOUR_GOOGLE_FACT_CHECK_API_KEY"  # Replace with your Google API key
API_URL = "https://factchecktools.googleapis.com/v1alpha1/claims:search"

# Define a function to get fact-checked data based on the claim
def fact_check_claim(claim):
    params = {
        "query": claim,
        "key": API_KEY
    }
    
    # Request to Google Fact Check Tools API
    response = requests.get(API_URL, params=params)
    
    # Check for errors
    if response.status_code == 200:
        return response.json()  # Parsed JSON response if successful
    else:
        st.error("Error: Could not retrieve data. Please try again.")
        return None

# Streamlit UI setup
st.title("Fact Checker for YouTube Video Claims")
st.write("Enter a claim from a YouTube video to verify with Google Fact Check Tools API.")

# Input form for claim text
claim_text = st.text_input("Claim Text", placeholder="Enter claim text here")

if st.button("Check Claim"):
    if claim_text:
        # Call fact-checking function
        fact_data = fact_check_claim(claim_text)

        # Display results if successful
        if fact_data and "claims" in fact_data:
            st.success("Fact-Check Results:")
            for item in fact_data["claims"]:
                st.write(f"**Claim:** {item['text']}")
                st.write(f"**Claimed By:** {item.get('claimant', 'Unknown')}")
                st.write(f"**Claim Date:** {item.get('claimDate', 'Unknown')}")
                for review in item.get("claimReview", []):
                    st.write(f"**Publisher:** {review['publisher']['name']}")
                    st.write(f"**Title:** {review['title']}")
                    st.write(f"**URL:** {review['url']}")
                    st.write(f"**Review Rating:** {review.get('textualRating', 'No rating')}")
                st.write("---")
        else:
            st.warning("No fact-checking information found for this claim.")
    else:
        st.warning("Please enter a claim to check.")