// Workspace's default namespace stores R2 objects under <name>/default/<path>.
// Delete the facet first, then its objects, without waking the child during
// parent startup recovery (the child's initialization can call the parent).
export async function deleteConversationAttachmentObjects(
  bucket: R2Bucket | undefined,
  conversationId: string,
): Promise<void> {
  if (!bucket) return;
  const prefix = `${conversationId}/default/attachments/`;
  let cursor: string | undefined;
  do {
    const page = await bucket.list({ prefix, cursor });
    if (page.objects.length)
      await bucket.delete(page.objects.map((o) => o.key));
    cursor = page.truncated ? page.cursor : undefined;
  } while (cursor);
}