// /utils/loadWindowVariables.ts

// ✅ Interface für `window`-Objekt zur TypeScript-Sicherheit
interface CustomWindow extends Window {
  [key: string]: any;
}

// ✅ Hauptfunktion zum Laden von `window`-Variablen
export async function loadWindowVariables(): Promise<Record<string, any>> {
  return new Promise((resolve, reject) => {
    const requiredVars: string[] = [
      "win_deviceName",
      "win_mac1",
      "win_ip",
      "win_subnet",
      "win_gateway",
      "win_cplInternalTimestamp",
      "win_ntp1",
      "win_ntp2",
      "win_ntp3",
      "win_systemZeit",
      "win_ntpTimezone",
      "win_ntpActive",
      "win_de_state",
      "win_counter",
      "win_flutter",
      "win_kueOnline",
      "win_kueID",
      "win_kuePSTmMinus96V",
      "win_kueAlarm1",
      "win_kueAlarm2",
      "win_kueIso",
      "win_kueResidence",
      "win_kueCableBreak",
      "win_kueGroundFault",
      "win_kueLimit1",
      "win_kueLimit2Low",
      "win_kueDelay1",
      "win_kueLoopInterval",
      "win_kueVersion",
      "win_tdrAtten",
      "win_tdrPulse",
      "win_tdrSpeed",
      "win_tdrAmp",
      "win_tdrTrigger",
      "win_tdrLocation",
      "win_tdrActive",
      "win_kueOverflow",
      "win_tdrLast",
      "win_appVersion",
      "win_da_state",
      "win_da_bezeichnung",
    ];

    const scripts: string[] = ["system.js, kueData.js"];

    // ✅ Erkenne Umgebung anhand von `window.location.hostname`
    const isDev = window.location.hostname === "localhost";

    const loadScript = (src: string): Promise<void> => {
      return new Promise((resolve, reject) => {
        const script = document.createElement("script");
        script.src = isDev
          ? `/CPLmockData/SERVICE/${src}` // Entwicklungsumgebung
          : `/CPL?/CPL/SERVICE/${src}`; // Produktionsumgebung
        script.async = true;
        script.onload = () => resolve();
        script.onerror = () => reject(new Error(`Script load error: ${src}`));
        document.head.appendChild(script);
      });
    };

    // ✅ Lade alle Skripte nacheinander
    scripts
      .reduce(
        (promise, script) => promise.then(() => loadScript(script)),
        Promise.resolve()
      )
      .then(() => {
        const win = window as unknown as CustomWindow;

        // ✅ Erstelle ein Objekt mit allen geladenen Variablen
        const variablesObj: Record<string, any> = requiredVars.reduce(
          (acc, variable) => {
            if (win[variable] !== undefined) {
              acc[variable.replace("win_", "")] = win[variable];
            }
            return acc;
          },
          {}
        );

        resolve(variablesObj);
      })
      .catch((error) => {
        console.error("❌ Fehler beim Laden eines Skripts:", error);
        reject(error);
      });
  });
}