app.py

import os
from pathlib import Path
import sys
import tarfile
import time

import gradio as gr
import spaces


ROOT = Path(__file__).resolve().parent
ARCHIVE = ROOT / "nexora-bundle.tar.gz"
if ARCHIVE.is_file() and not (ROOT / "static" / "index.html").is_file():
    with tarfile.open(ARCHIVE, "r:gz") as bundle:
        bundle.extractall(ROOT)
os.environ.setdefault("STATIC_DIR", str(ROOT / "static"))
os.environ.setdefault("PANOR_CATALOG_PATH", str(ROOT / "deploy" / "panor-catalog.json"))
sys.path.insert(0, str(ROOT))

from backend.app.main import app as api_app


@spaces.GPU
def zero_gpu_runtime_marker():
    return None


with gr.Blocks() as zero_gpu_app:
    trigger = gr.Button(visible=False)
    trigger.click(zero_gpu_runtime_marker, outputs=None)


def attach_nexora_routes() -> None:
    fallback_routes = [
        route for route in api_app.router.routes if getattr(route, "path", None) == "/{path:path}"
    ]
    api_routes = [route for route in api_app.router.routes if route not in fallback_routes]
    zero_gpu_app.app.router.routes = [
        *api_routes,
        *zero_gpu_app.app.router.routes,
        *fallback_routes,
    ]


if __name__ == "__main__":
    zero_gpu_app.launch(
        server_name="0.0.0.0",
        server_port=int(os.environ.get("PORT", "7860")),
        prevent_thread_lock=True,
    )
    attach_nexora_routes()
    while True:
        time.sleep(3600)