app.py

#!/usr/bin/env python3
"""Launch the modular Landing Site Safety Analyzer Gradio demo."""

from __future__ import annotations

import os

import spaces

# Disable Gradio Spaces hot reload/watch to avoid version pin errors on Spaces.
os.environ["GRADIO_HOT_RELOAD"] = "0"
os.environ["GRADIO_WATCH_MODE"] = "0"

from app.ui import build_ui


@spaces.GPU
def main() -> None:
    # Ensure hot reload/watch stays off even if overridden upstream.
    os.environ["GRADIO_HOT_RELOAD"] = "0"
    os.environ["GRADIO_WATCH_MODE"] = "0"
    demo = build_ui()
    use_queue = os.getenv("DA_USE_QUEUE")
    use_queue_flag = False if use_queue is None else use_queue.lower() not in {"0", "false", "no"}
    share = os.getenv("DA_SHARE")
    share_flag = False if share is None else share.lower() not in {"0", "false", "no"}
    server_port_str = os.getenv("GRADIO_SERVER_PORT")
    server_port = int(server_port_str) if server_port_str else None
    server_port_range = None
    range_env = os.getenv("GRADIO_SERVER_PORT_RANGE")
    if range_env:
        try:
            start_str, end_str = range_env.split(",", 1)
            server_port_range = (int(start_str), int(end_str))
        except ValueError:
            server_port_range = None
    launch_kwargs = {"share": share_flag, "ssr_mode": False}
    if server_port is not None:
        launch_kwargs["server_port"] = server_port
    if server_port_range is not None:
        launch_kwargs["server_port_range"] = server_port_range
    if use_queue_flag:
        try:
            demo.queue().launch(**launch_kwargs)
        except TypeError:
            launch_kwargs.pop("server_port_range", None)
            demo.queue().launch(**launch_kwargs)
    else:
        try:
            demo.launch(**launch_kwargs)
        except TypeError:
            launch_kwargs.pop("server_port_range", None)
            demo.launch(**launch_kwargs)


if __name__ == "__main__":
    main()