//  /services/fetchDigitalOutputsService.ts

export const fetchDigitalOutputsService = async () => {
  const mode = process.env.NEXT_PUBLIC_CPL_MODE;

  if (mode === "json") {
    const res = await fetch("/api/cpl/digitalOutputsAPIHandler");
    if (!res.ok)
      throw new Error("❌ Fehler beim Laden der digitalen Ausgänge (JSON)");

    const data = await res.json();
    const state = data.win_da_state;
    const labels = data.win_da_bezeichnung;

    if (!Array.isArray(state)) {
      console.warn("⚠️ win_da_state fehlt oder ist ungültig:", state);
      return [];
    }

    return state.slice(0, 4).map((status: number, index: number) => ({
      id: index + 1,
      label:
        Array.isArray(labels) && labels[index]
          ? labels[index]
          : `Ausgang ${index + 1}`,
      status: status === 1,
    }));
  }

  // jsmock oder production
  const scriptUrl =
    mode === "production"
      ? "/CPL?/CPL/SERVICE/digitalOutputs.js"
      : "/CPLmockData/SERVICE/digitalOutputsMockData.js";

  await new Promise<void>((resolve, reject) => {
    const script = document.createElement("script");
    script.src = scriptUrl;
    script.async = true;
    script.onload = () => resolve();
    script.onerror = () => reject("❌ Fehler beim Laden der digitalOutputs.js");
    document.body.appendChild(script);
  });

  const win = window as any;
  const state = win.win_da_state;
  const labels = win.win_da_bezeichnung;

  if (!Array.isArray(state)) {
    console.warn("⚠️ win_da_state fehlt oder ist ungültig:", state);
    return [];
  }

  return state.slice(0, 4).map((status: number, index: number) => ({
    id: index + 1,
    label:
      Array.isArray(labels) && labels[index]
        ? labels[index]
        : `Ausgang ${index + 1}`,
    status: status === 1,
  }));
};