// utils/loadWindowVariables.js

export async function loadWindowVariables() {
  return new Promise((resolve, reject) => {
    // Überprüfen, ob die wichtigsten Variablen bereits geladen sind
    const requiredVars = [
      "last20Messages",
      "deviceName",
      "mac1",
      "mac2",
      "ip",
      "subnet",
      "gateway",
      "datetime",
      "de",
      "counter",
      "flutter",
      "kueOnline",
      "kueID",
      "kueValid",
      "kueAlarm1",
      "kueAlarm2",
      "kueRes",
      "kueCableBreak",
      "kueGroundFault",
      "kueLimit1",
      "kueLimit2Low",
      "kueLimit2High",
      "kueDelay1",
      "kueLoopInterval",
      "kueVersion",
      "tdrAtten",
      "tdrPulse",
      "tdrSpeed",
      "tdrAmp",
      "tdrTrigger",
      "tdrLocation",
      "tdrActive",
      "kueOverflow",
      "kue100V",
      "kueResidence",
      "tdrLast",
      "kueBooting",
      "appVersion",
    ];

    const missingVars = requiredVars.filter(
      (variable) => window[variable] === undefined
    );

    // Wenn alle Variablen bereits vorhanden sind, auflösen und keine weiteren Skripte laden
    if (missingVars.length === 0) {
      console.log("Alle Systemvariablen sind bereits geladen.");
      resolve();
      return;
    }

    const loadScript = (src) => {
      return new Promise((resolve, reject) => {
        const script = document.createElement("script");
        const environment = process.env.NEXT_PUBLIC_NODE_ENV || "production";
        script.src =
          environment === "production"
            ? `/CPL?/CPL/SERVICE/${src}`
            : `/mockData/SERVICE/${src}`;
        script.async = true;
        script.onload = resolve;
        script.onerror = reject;
        document.head.appendChild(script);
      });
    };

    // Nur die fehlenden Skripte laden
    const scripts = [
      "de.js",
      "kueConfig.js",
      "kueData.js",
      "kueDetailTdr.js",
      "Start.js",
      "System.js",
    ];

    Promise.all(scripts.map(loadScript))
      .then(() => {
        console.log("Alle Systemvariablen wurden erfolgreich geladen.");
        resolve();
      })
      .catch((error) => {
        console.error("Fehler beim Laden eines Skripts:", error);
        reject(error);
      });
  });
}