// /services/fetchAllTDRChartData.ts
import { Dispatch } from "@reduxjs/toolkit";
import { setTDRData, selectTDRData } from "../redux/slices/tdrChartSlice";
import { RootState } from "../redux/store";

const BASE_PATH = "/CPLmockData/LastTDR/jsonDatei";

export const fetchAllTDRChartData = async (
  dispatch: Dispatch,
  getState: () => RootState
) => {
  const state = getState();
  const currentData = selectTDRData(state);

  const fileNames = Array.from({ length: 32 }, (_, i) => `json${i}`);
  const fetchPromises = fileNames.map(async (fileName) => {
    try {
      const response = await fetch(`${BASE_PATH}/${fileName}.json`);
      if (!response.ok)
        throw new Error(`Fehler bei ${fileName}: ${response.statusText}`);
      return await response.json();
    } catch (error) {
      console.error(`Fehler beim Laden von ${fileName}:`, error);
      return null;
    }
  });

  const newData = await Promise.all(fetchPromises);

  // Nur aktualisieren, wenn sich die Daten geändert haben
  if (JSON.stringify(currentData) !== JSON.stringify(newData)) {
    dispatch(setTDRData(newData));
  }
};