app.py

# app.py
import gradio as gr
from celery import Celery
import time
import os

# Initialize Celery with environment variable for Redis URL
REDIS_URL = os.getenv('REDIS_URL', 'redis://localhost:6379/0')
celery_app = Celery('tasks', broker=REDIS_URL)

@celery_app.task
def calculate_after_delay(expression):
    time.sleep(6)  # Wait 6 seconds
    try:
        result = eval(expression)  # Safely evaluate the math expression
        return f"After 6 seconds, {expression} = {result}"
    except:
        return "Invalid math expression"

# Create Gradio interface
def create_gr_interface():
    with gr.Blocks() as demo:
        gr.Markdown("# Math Calculator with 6s Delay")
        
        with gr.Row():
            input_text = gr.Textbox(label="Enter math expression (e.g., 1+8+9)")
            result = gr.Textbox(label="Result")
        
        btn = gr.Button("Calculate")
        btn.click(
            fn=lambda x: calculate_after_delay(x),
            inputs=input_text,
            outputs=result
        )
    return demo

app = create_gr_interface()