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#!/usr/bin/env python
# SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: OpenMDW-1.1

"""Print read-only Action Viz checkpoint resolution diagnostics."""

from __future__ import annotations

import argparse
import json
import sys
from pathlib import Path


def _repo_root() -> Path:
    return Path(__file__).resolve().parents[1]


def main(argv: list[str] | None = None) -> int:
    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument("checkpoint", nargs="?", default=None)
    args = parser.parse_args(argv)

    framework_root = _repo_root() / "cosmos-framework"
    if str(framework_root) not in sys.path:
        sys.path.insert(0, str(framework_root))

    from cosmos_framework.data.vfm.action.action_viz.local_worker import checkpoint_diagnostic

    print(json.dumps(checkpoint_diagnostic(args.checkpoint), indent=2, sort_keys=True))
    return 0


if __name__ == "__main__":
    raise SystemExit(main())