// hooks/windowvariables/useLoadWindowVariables.ts
import { useEffect } from "react";
import { useDispatch } from "react-redux";
import { setDigitalOutputs } from "../../redux/slices/digitalOutputsSlice";

const requiredVars: string[] = ["win_da_state", "win_da_bezeichnung"];

const scripts: string[] = [
  "da.js",
  "de.js",
  "ae.js",
  "kueData.js",
  "Start.js",
  "System.js",
  "opcua.js",
];

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

export const useLoadWindowVariables = () => {
  const dispatch = useDispatch();

  useEffect(() => {
    const loadVariables = async () => {
      try {
        await loadScript("da.js"); // Lade `da.js` zuerst
        for (const script of scripts) {
          if (script !== "da.js") await loadScript(script);
        }

        console.log("Laden abgeschlossen. Jetzt werden Variablen geprüft.");
        console.log("win_da_state:", window.win_da_state);
        console.log("win_da_bezeichnung:", window.win_da_bezeichnung);

        if (window.win_da_state && window.win_da_bezeichnung) {
          const digitalOutputs = window.win_da_state.map(
            (status: number, index: number) => ({
              id: index + 1,
              label: window.win_da_bezeichnung[index] || `Ausgang ${index + 1}`,
              status: status === 1,
            })
          );

          console.log("Dispatching digitalOutputs:", digitalOutputs);
          dispatch(setDigitalOutputs(digitalOutputs));
        }
      } catch (error) {
        console.error("Fehler beim Laden der Skripte:", error);
      }
    };

    loadVariables();
  }, [dispatch]);
};