export function campaignMailProfileReferenceOnly(value: Record<string, unknown>): Record<string, unknown> {
  const server = isRecord(value.server) ? value.server : {};
  const profileId = textId(server.mail_profile_id);
  const smtpServerId = textId(server.smtp_server_id);
  const smtpCredentialId = textId(server.smtp_credential_id);
  const imapServerId = textId(server.imap_server_id);
  const imapCredentialId = textId(server.imap_credential_id);
  const reference: Record<string, string> = {};
  if (profileId) reference.mail_profile_id = profileId;
  if (profileId && smtpServerId) reference.smtp_server_id = smtpServerId;
  if (profileId && smtpServerId && smtpCredentialId) reference.smtp_credential_id = smtpCredentialId;
  if (profileId && imapServerId) reference.imap_server_id = imapServerId;
  if (profileId && imapServerId && imapCredentialId) reference.imap_credential_id = imapCredentialId;
  return {
    ...value,
    server: reference
  };
}

function textId(value: unknown): string {
  return typeof value === "string" ? value.trim() : "";
}

function isRecord(value: unknown): value is Record<string, unknown> {
  return Boolean(value) && typeof value === "object" && !Array.isArray(value);
}