from fastapi import FastAPI
from backend.api import items, pdfreader, textreader
from fastapi.middleware.cors import CORSMiddleware
import gradio as gr

app = FastAPI(title="Multi-layered FastAPI Example")

# === CORS Middleware ===
origins = ["*"]
app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# === Include API routers ===
app.include_router(items.router)
app.include_router(pdfreader.router)
app.include_router(textreader.router)

# === Gradio Function ===
def gradio_func(text):
    return f"Gradio received: {text}"

gradio_app = gr.Interface(fn=gradio_func, inputs="text", outputs="text")

# === Mount Gradio at /gradio ===
from gradio.routes import App as GradioApp
gradio_app.launch(inline=True, prevent_thread_lock=True)
app.mount("/gradio", GradioApp.create_app(gradio_app))

# === Uvicorn Entry ===
if __name__ == "__main__":
    import uvicorn
    uvicorn.run("app:app", host="0.0.0.0", port=8000, reload=True)