"""Helpers around RegistryManager issuance queues (Python API drains on take)."""

from __future__ import annotations

import zkac


def peek_pending_requests(
    mgr: zkac.RegistryManager, registry_id: bytes
) -> list[tuple[bytes, bytes, bytes, bytes]]:
    """Return pending (request_id, role_id, eph_pk, ciphertext) and re-queue them."""
    items = mgr.take_pending_requests(registry_id)
    out: list[tuple[bytes, bytes, bytes, bytes]] = []
    for tup in items:
        req_id, role_id, eph_pk, enc = tup
        out.append((req_id, role_id, eph_pk, enc))
        mgr.queue_issuance_request(registry_id, req_id, role_id, eph_pk, enc)
    return out


def take_pending_requests(
    mgr: zkac.RegistryManager, registry_id: bytes
) -> list[tuple[bytes, bytes, bytes, bytes]]:
    """Drain pending queue (admin processes and must grant or lose requests)."""
    items = mgr.take_pending_requests(registry_id)
    return [(a, b, c, d) for a, b, c, d in items]