// /services/fetchKueData.ts

export const fetchKueData = async () => {
  try {
    if (typeof window === "undefined") return null;

    // ✅ Script dynamisch laden
    await new Promise<void>((resolve, reject) => {
      const script = document.createElement("script");
      const env = process.env.NEXT_PUBLIC_NODE_ENV;
      script.src =
        env === "production"
          ? "/CPL?/CPL/SERVICE/kueData.js"
          : "/CPLmockData/SERVICE/kueData.js";
      script.async = true;
      script.onload = () => resolve();
      script.onerror = () => reject("Fehler beim Laden von kueData.js");
      document.body.appendChild(script);
    });

    const win = window as any;

    // ✅ Alle benötigten Variablen extrahieren
    const keys = [
      "kueOnline",
      "kueID",
      "kuePSTmMinus96V",
      "kueAlarm1",
      "kueAlarm2",
      "kueIso",
      "kueResidence",
      "kueCableBreak",
      "kueGroundFault",
      "kueLimit1",
      "kueLimit2Low",
      "kueDelay1",
      "kueLoopInterval",
      "kueVersion",
      "tdrAtten",
      "tdrPulse",
      "tdrSpeed",
      "tdrAmp",
      "tdrTrigger",
      "tdrLocation",
      "tdrActive",
      "kueOverflow",
      "tdrLast",
    ];

    const result: Record<string, any> = {};
    for (const key of keys) {
      const winKey = `win_${key}`;
      result[key] = win[winKey] ?? [];
    }

    return result;
  } catch (error) {
    console.error("❌ Fehler beim Laden der KUE-Daten:", error);
    return null;
  }
};