# Route email jobs via Celery instead of raw RabbitMQ publishing
# Ensure Celery app is initialized so producers use correct broker credentials.
# Import has side effects (sets Celery default app), safe to keep at module level.
import app.celery_app  # noqa: F401

# Use a lazy proxy so _send_email_task is never None, even if Celery modules
# are not yet importable at import time (e.g., different working dir during startup).
class _LazySendTask:
    def delay(self, to: str, subject: str, body: str):  # type: ignore[no-untyped-def]
        # Late import on first use
        from app.workers.celery_tasks import send_email_fields as _send  # type: ignore
        return _send.delay(to, subject, body)


try:
    # Try eager import for normal operation
    from app.workers.celery_tasks import send_email_fields as _send_email_task  # type: ignore
except ImportError:  # pragma: no cover - fallback lazy import proxy
    _send_email_task = _LazySendTask()  # type: ignore


def enqueue_email(to: str, subject: str, body: str) -> None:
    """Enqueue an email job using Celery.

    Keeps the same public API as before.
    """
    _send_email_task.delay(to, subject, body)