app.py

import gradio as gr
import re
import os
import numpy as np
from langchain_community.vectorstores import Chroma
from langchain_community.embeddings import HuggingFaceBgeEmbeddings
# from dotenv import load_dotenv, find_dotenv

# load_dotenv(find_dotenv(r"LLMs\.env"))
HUGGINGFACEHUB_API_TOKEN = os.environ["token"]

def clean_(l):
    s = list(l)[0][1]
    s = s.replace("\n", "=")
    return re.split('=', s, maxsplit=1)[-1].strip()

def similarity_search2(vectordb, query, k, unique="True"):
    print(f"\nQuery Key: {query}, \nrows requested:{k}\nUnique values:{unique}")
    D = vectordb.similarity_search(query,k)
    temp = []
    for d in D:
        temp.append(clean_(d))
    del D
    if unique == "True":
        return str(np.unique(np.array(temp)))[1:-1]
    else:
        return str(np.array(temp))[1:-1]

with gr.Blocks() as demo:
     gr.Markdown(
    """
    <h2> <center> Query Retrieval </center> </h2>
    """)
    query = gr.Textbox(placeholder="your query", label="Query")
    k = gr.Slider(10,1000,5, label="number of samples to check")
    unique = gr.Radio(["True", "False"], label="Return Unique values")
    
    with gr.Row():
        btn = gr.Button("Submit")
    
    def mmt_query(query, k, unique):
        model_id = "BAAI/bge-large-en-v1.5"
        model_kwargs = {"device": "cpu"}
        embedding = HuggingFaceBgeEmbeddings(
            model_name = model_id,
            model_kwargs = model_kwargs,
            encode_kwargs = {'normalize_embeddings':True}
        )
        persist_directory = r"VectorDB\db_book_mmt"
        vectordb = Chroma(persist_directory=persist_directory, embedding_function=embedding)
        return similarity_search2(vectordb, query, k, unique)
    
    output = gr.Textbox()
    btn.click(mmt_query, [query, k, unique], output)
    
    # interface = gr.Interface(fn=auto_eda, inputs="dataframe", outputs="json")
# demo.queue()
demo.launch()