"""Compatibility CLI for the shared image-only release admission policy."""
import argparse
import json
from pathlib import Path
import yaml
from activity_core.gitops_policy import validate

if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("before", type=Path)
    parser.add_argument("after", type=Path)
    parser.add_argument("evidence", type=Path)
    args = parser.parse_args()
    try:
        print(json.dumps(validate(list(yaml.safe_load_all(args.before.read_text())),
                                  list(yaml.safe_load_all(args.after.read_text())),
                                  json.loads(args.evidence.read_text()))))
    except (ValueError, KeyError, TypeError) as exc:
        raise SystemExit(f"refused: {exc}")