import streamlit as st
import os
from pinecone import Pinecone
from sentence_transformers import SentenceTransformer
# import torch

# device = 'cuda' if torch.cuda.is_available() else 'cpu'

model = SentenceTransformer('intfloat/e5-small')

# Set up the Streamlit app
st.set_page_config(page_title="Search Engine", layout="wide")

# Set up the Streamlit app title and search bar
with st.form("my_form"):
    st.write("Login to Search Engine")
    index_name = st.text_input("Enter a database name:", "")
    key = st.text_input("Enter a key:", "")
    namespace = st.text_input("Enter a table name:", "")
    # slider_val = st.slider("Form slider")
    # checkbox_val = st.checkbox("Form checkbox")
    
    # Every form must have a submit button.
    submitted = st.form_submit_button("Connect to My Search Engine")
    if submitted:
        # if st.button("Connect to Search Engine Database", type="primary"):
        #     index_name = st.text_input("Enter a database name:", "")
        #     key = st.text_input("Enter a key:", "")
        #     namespace = st.text_input("Enter a table name:", "")
        #     # initialize connection to pinecone (get API key at app.pinecone.io)
    
        api_key = os.environ.get('PINECONE_API_KEY') or key
        
        # configure client
        pc = Pinecone(api_key=api_key)
        
        from pinecone import ServerlessSpec
        
        cloud = os.environ.get('PINECONE_CLOUD') or 'aws'
        region = os.environ.get('PINECONE_REGION') or 'us-east-1'
        
        spec = ServerlessSpec(cloud=cloud, region=region)
        
        
        # connect to index
        index = pc.Index(index_name)
        st.write('Successfully connected to your Search Engine DB!')
        st.write('Start searching...')
    
        
        query = st.text_input("Enter a search query:", "")
        
        # If the user has entered a search query, search the Pinecone index with the query
        if query:
            # Upsert the embeddings for the query into the Pinecone index
            query_embeddings =  model.encode(query).tolist()
            # now query
            xc = index.query(vector=query_embeddings, top_k=10, namespace=namespace, include_metadata=True)
            
            # Display the search results
            st.write(f"Search results for '{query}':")
            for result in xc['matches']:
                st.write(f"{round(result['score'], 2)}: {result['metadata']['meta_text']}")