backend/src/app.py

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import FileResponse
from fastapi.staticfiles import StaticFiles

from . import constants

app = FastAPI()

# Lax on CORS headers (Spaces take care of security issues)
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# Mount static files from dist directory (if configured)
if constants.SERVE_FRONTEND:
    app.mount(
        "/assets",
        StaticFiles(directory=constants.FRONTEND_ASSETS_PATH),
        name="assets",
    )

    @app.get("/")
    async def serve_frontend():
        return FileResponse(constants.FRONTEND_INDEX_PATH)


@app.get("/api/health")
async def health():
    return {"status": "ok"}