from __future__ import annotations

from celery import shared_task


@shared_task(name="govoplan_calendar.sync_due_caldav_sources")
def sync_due_caldav_sources_task(tenant_id: str | None = None, limit: int = 50) -> list[dict[str, object]]:
    from govoplan_calendar.backend.service import sync_due_sources
    from govoplan_core.db.session import get_database

    with get_database().SessionLocal() as session:
        results = sync_due_sources(session, tenant_id=tenant_id, limit=limit)
        session.commit()
        return [
            {
                "source_id": item.source_id,
                "calendar_id": item.calendar_id,
                "status": item.status,
                "error": item.error,
                "created": item.stats.created if item.stats else 0,
                "updated": item.stats.updated if item.stats else 0,
                "deleted": item.stats.deleted if item.stats else 0,
                "unchanged": item.stats.unchanged if item.stats else 0,
                "fetched": item.stats.fetched if item.stats else 0,
            }
            for item in results
        ]