import gradio as gr
import pandas as pd
import faiss
import numpy as np
import os
from sentence_transformers import SentenceTransformer

# Load the pre-trained embedding model
model = SentenceTransformer("Alibaba-NLP/gte-Qwen2-1.5B-instruct", trust_remote_code=True)

# Set the max sequence length
model.max_seq_length = 512

# Load the JSON data into a DataFrame
df = pd.read_json('White-Stride-Red-68.json')
df['embeding_context'] = df['embeding_context'].astype(str).fillna('')

# Filter out any rows where 'embeding_context' might be empty or invalid
df = df[df['embeding_context'] != '']
    
index = faiss.read_index('vector_store.index')


# Function to perform search and return all columns
def search_query(query_text):
    num_records = 50

    # Encode the input query text
    embeddings_query = model.encode([query_text], prompt_name="query")
    embeddings_query_np = np.array(embeddings_query).astype('float32')

    # Search in FAISS index for nearest neighbors
    distances, indices = index.search(embeddings_query_np, num_records)

    # Get the top results based on FAISS indices
    result_df = df.iloc[indices[0]].drop(columns=['embeding_context']).drop_duplicates().reset_index(drop=True)

    return result_df

# Gradio interface function
def gradio_interface(query_text):
    search_results = search_query(query_text)
    return search_results

# Gradio interface setup
with gr.Blocks() as app:
    gr.Markdown("<h1>White Stride Red Search (GTE-Qwen2)</h1>")
    
    # Input text box for the search query
    search_input = gr.Textbox(label="Search Query", placeholder="Enter search text", interactive=True)
    
    # Output table for displaying results
    search_output = gr.DataFrame(label="Search Results")
    
    # Search button
    search_button = gr.Button("Search")
    
    # Link button click to action
    search_button.click(fn=gradio_interface, inputs=search_input, outputs=search_output)

# Launch the Gradio app
app.launch()