// /services/fetchTDRReferenceCurve.ts
export const fetchTDRReferenceCurve = async (
  slot: number
): Promise<any[] | null> => {
  if (typeof window === "undefined") return null;

  const isDev = process.env.NEXT_PUBLIC_NODE_ENV === "development";

  const url = isDev
    ? `/CPLmockData/tdr-reference-curves/slot${slot}.json`
    : `${window.location.origin}/CPL?Service/empty.acp&TDRR=${slot}`;

  try {
    const res = await fetch(url);
    if (!res.ok) throw new Error(`HTTP ${res.status}`);
    return await res.json();
  } catch (error) {
    console.error(
      `❌ Fehler beim Laden der Referenzkurve für Slot ${slot}:`,
      error
    );
    return null;
  }
};