#!/usr/bin/env python3
"""Validate a rendered manifest against ADR-0008 declarations."""

from __future__ import annotations

import argparse
import json
import sys
from pathlib import Path

from exposure import ExposureError, validate_rendered_exposure


def main() -> int:
    parser = argparse.ArgumentParser()
    parser.add_argument("rendered_manifest", type=Path)
    parser.add_argument("--rapp-declaration", type=Path)
    parser.add_argument("--reef-declaration", type=Path)
    args = parser.parse_args()
    try:
        result = validate_rendered_exposure(
            args.rendered_manifest.read_text(encoding="utf-8"),
            rapp_declaration=args.rapp_declaration,
            reef_declaration=args.reef_declaration,
        )
    except (OSError, ExposureError) as exc:
        print(f"exposure validation failed: {exc}", file=sys.stderr)
        return 1
    print(json.dumps(result, sort_keys=True))
    return 0


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