app.py

import streamlit as st
from langchain_core.prompts import ChatPromptTemplate
from langchain_google_genai import ChatGoogleGenerativeAI
import os

st.title("Translation Using OpenAI")

# Language options for the dropdown menus
languages = ["English", "Hindi", "Telugu", "Malayalam", "Tamil", "Punjabi"]

# Dropdown menu for selecting input language
input_language = st.selectbox("Select your input language", languages)

# Text area for input text
input_text = st.text_area(f"Write your text in {input_language}")

# Dropdown menu for selecting output language
output_language = st.selectbox("Select your output language", languages)

# Set the environment variable for the API key
os.environ['GOOGLE_API_KEY'] = os.getenv("geminiapi_key")

# Initialize the OpenAI language model
llm = ChatGoogleGenerativeAI(model="gemini-pro", temperature=0, max_tokens=80)

# Create the prompt template
prompt = ChatPromptTemplate.from_messages([
    ("system", "You are a good assistant for translating from {il} to {ol}."),
    ("human", "{i}")
])

# Define the translation chain
chain = prompt | llm

# Function to perform the translation
def translate(input_text, input_language, output_language):
    response = chain.invoke({"il": input_language, "ol": output_language, "i": input_text})
    return response.content

# Submit button
if st.button("Submit"):
    if input_text:
        translation = translate(input_text, input_language, output_language)
        st.write("Translated Text:", translation)
    else:
        st.write("Please enter text to translate.")