app.py

import os
from pathlib import Path

import uvicorn
from starlette.applications import Starlette
from starlette.responses import FileResponse, JSONResponse
from starlette.routing import Mount, Route
from starlette.staticfiles import StaticFiles

ROOT = Path(__file__).resolve().parent
INDEX = ROOT / "index.html"


async def health(_request):
    return JSONResponse({"status": "ok", "mode": "static-demo"})


async def serve_app(request):
    path = request.path_params.get("path", "")
    requested = (ROOT / path).resolve()
    if requested.is_file() and ROOT in requested.parents:
        return FileResponse(requested)
    return FileResponse(INDEX)


app = Starlette(
    debug=False,
    routes=[
        Route("/health", health),
        Mount("/assets", StaticFiles(directory=ROOT / "assets"), name="assets"),
        Route("/{path:path}", serve_app),
    ],
)


if __name__ == "__main__":
    port = int(os.environ.get("PORT", "7860"))
    uvicorn.run(app, host="0.0.0.0", port=port)