app.py

"""Hugging Face Space entrypoint."""

from __future__ import annotations

import os
from pathlib import Path
import socket
import sys

ROOT = Path(__file__).resolve().parent
SRC = ROOT / "src"
if str(SRC) not in sys.path:
    sys.path.insert(0, str(SRC))

from thirawat_demo.space_ui import build_demo


def _is_port_free(port: int) -> bool:
    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
        sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        return sock.connect_ex(("127.0.0.1", port)) != 0


def _resolve_server_port() -> int:
    """Use fixed PORT in managed environments; choose first free local port."""
    port_env = os.getenv("PORT")
    if port_env:
        return int(port_env)
    gradio_port_env = os.getenv("GRADIO_SERVER_PORT")
    if gradio_port_env:
        return int(gradio_port_env)
    for candidate in range(7860, 7871):
        if _is_port_free(candidate):
            return candidate
    return 7860


demo = build_demo()

if __name__ == "__main__":
    port = _resolve_server_port()
    print(f"Starting THIRAWAT Mapper Demo on http://127.0.0.1:{port}", flush=True)
    demo.launch(server_name="0.0.0.0", server_port=port, share=False, ssr_mode=False)