#!/usr/bin/env python3
"""Guard issue #277 parity artifact against non-deterministic regeneration."""

from __future__ import annotations

import hashlib
import subprocess
import sys
from pathlib import Path

REPO_ROOT = Path(__file__).resolve().parents[1]
ARTIFACT_PATH = REPO_ROOT / "docs" / "ISSUE-277-SHARED-I18N-PARITY-ARTIFACT.md"
REPORT_SCRIPT = REPO_ROOT / "scripts" / "report_i18n_parity.py"


def sha256(path: Path) -> str:
    return hashlib.sha256(path.read_bytes()).hexdigest()


def main() -> int:
    before = sha256(ARTIFACT_PATH)

    for run in range(1, 3):
        subprocess.run([sys.executable, str(REPORT_SCRIPT)], cwd=REPO_ROOT, check=True)
        after = sha256(ARTIFACT_PATH)
        if after != before:
            raise SystemExit(
                f"issue #277 parity artifact is not deterministic after run {run}: {before} != {after}"
            )

    print(f"issue #277 parity artifact deterministic: {before}")
    return 0


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