app.py

import gradio as gr
import fastapi
from fastapi import FastAPI
from fastapi.staticfiles import StaticFiles
import uvicorn
import os
import logging
from pathlib import Path

logging.basicConfig(level=logging.DEBUG)

# Create FastAPI app
app = FastAPI()

# Function for Gradio button
def on_button_click():
    return "Button clicked!"

# Create Gradio Blocks app
with gr.Blocks() as demo:
    button = gr.Button("Click Me")
    output = gr.Textbox()
    
    button.click(on_button_click, inputs=[], outputs=[output])

# Create ASGI app for Gradio
gradio_asgi_app = demo.launch(share=False, inbrowser=False, server_name="0.0.0.0", server_port=7860, inline=False)

# Mount the Gradio ASGI app onto FastAPI at "/gradio"
app.mount("/gradio", gradio_asgi_app)

# Static files directory for FastAPI
static_dir = Path('./static')
static_dir.mkdir(parents=True, exist_ok=True)
app.mount("/static", StaticFiles(directory=static_dir), name="static")

# Check Gradio and FastAPI versions
logging.debug(f"Gradio version: {gr.__version__}")
logging.debug(f"FastAPI version: {fastapi.__version__}")

# Run the FastAPI server using uvicorn
if __name__ == "__main__":
    port = int(os.getenv("PORT", 7860))  # Default to 7860 if PORT is not set
    uvicorn.run(app, host="0.0.0.0", port=port)