"""
Placeholder for visual smoke checks.

This script is intentionally minimal; hook Playwright or similar later.
"""

import argparse
from pathlib import Path


def main() -> None:
    parser = argparse.ArgumentParser(description="Visual smoke check placeholder.")
    parser.add_argument("--html", type=Path, required=True, help="HTML file to inspect")
    args = parser.parse_args()

    if not args.html.exists():
        raise SystemExit(f"Missing HTML file: {args.html}")

    print("Visual smoke placeholder:")
    print(f"- Open in browser and visually verify: {args.html}")
    print("- TODO: integrate Playwright for screenshot diffs.")


if __name__ == "__main__":
    main()