"""Export the producer's one online client; never maintain a consumer fork."""
from pathlib import Path
import argparse
import hashlib
import json

ROOT = Path(__file__).resolve().parent.parent
DESTINATION = ROOT / 'adapters/go/tokenstatus'

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('--check', action='store_true')
    args = parser.parse_args()
    client = (ROOT / 'src/internal/authclient/online.go').read_bytes()
    assert client.startswith(b'package authclient\n')
    output = {
        'pkg/tokenstatus/client.go': client.replace(b'package authclient\n', b'package tokenstatus\n', 1),
        'internal/jose/jose.go': (ROOT / 'src/internal/jose/jose.go').read_bytes(),
        'LICENSE': (ROOT / 'LICENSE').read_bytes(),
        'go.mod': b'module keycape\n\ngo 1.23.0\n',
    }
    metadata = {
        'source_of_truth': 'key-cape source; generated by tools/export_tokenstatus_client.py',
        'source_files': ['src/internal/authclient/online.go', 'src/internal/jose/jose.go', 'LICENSE'],
        'transformation': 'replace only the first package declaration authclient with tokenstatus; all remaining client bytes and shared JOSE bytes exact',
        'module': 'keycape', 'profile': 'issuer online access-token status; no policy evaluator or deployment',
        'supported_file_boundary': 'Linux owner execution profile; POSIX mode checks; not a Windows ACL contract',
        'sha256': {name: 'sha256:' + hashlib.sha256(raw).hexdigest() for name,raw in sorted(output.items())},
    }
    output['producer-source.json'] = (json.dumps(metadata, indent=2) + '\n').encode()
    actual = {str(p.relative_to(DESTINATION)) for p in DESTINATION.rglob('*') if p.is_file()}
    if actual - set(output):
        raise SystemExit('unexpected generated adapter file; reconcile explicitly')
    if args.check:
        if any(not (DESTINATION / name).is_file() or (DESTINATION / name).read_bytes()!=raw for name,raw in output.items()):
            raise SystemExit('producer/consumer token-status source drift')
    else:
        for name, raw in output.items():
            path=DESTINATION/name;path.parent.mkdir(parents=True, exist_ok=True);path.write_bytes(raw)
    print(json.dumps({'status':'verified' if args.check else 'exported','files':len(output)}))

if __name__ == '__main__':
    main()