"""Standalone script: connect to the running sim and call
flomni.tomo_queue_execute(). Run as a real OS subprocess (its own main
thread) rather than a Python thread inside the test process: BECIPythonClient
's live-update machinery installs a SIGINT handler per scan request, which
Python only allows from a process's real main thread (see
_queue_helpers.ProgressSampler for the same constraint hit from the thread
side). Section B/C tests spawn this and SIGKILL it (or edit the queue
concurrently from a second client) to simulate a crashed kernel / a second
operator session.

Usage: python _run_queue_subprocess.py <services_config_path> [start_index]
Exit code is 0 on a clean run, 1 if tomo_queue_execute() raised.
"""

import sys

from _bootstrap import build_flomni, shutdown


def main() -> int:
    services_config_path = sys.argv[1]
    start_index = int(sys.argv[2]) if len(sys.argv) > 2 else 0

    bec, flomni = build_flomni(services_config_path)
    try:
        flomni.tomo_queue_execute(start_index=start_index)
    except Exception as exc:  # noqa: BLE001 - reported via exit code, not re-raised
        print(f"_run_queue_subprocess: tomo_queue_execute() raised: {exc}", file=sys.stderr)
        return 1
    finally:
        shutdown(bec)
    return 0


if __name__ == "__main__":
    sys.exit(main())