// /components/gisPolylines/tooltip/useLineData.js
import { useEffect, useState } from "react";
import { useSelector, useDispatch } from "react-redux";
import { selectGisLinesStatusFromWebservice } from "@/redux/slices/webservice/gisLinesStatusSlice";
import { fetchGisLinesThunk } from "@/redux/thunks/database/polylines/fetchGisLinesThunk";
import { fetchGisLinesStatusThunk } from "@/../redux/thunks/webservice/fetchGisLinesStatusThunk";
import { generateLineTooltipContent } from "./generateLineTooltipContent";
import { selectGisStationsStaticDistrict } from "@/redux/slices/webservice/gisStationsStaticDistrictSlice";

const useLineData = () => {
  const dispatch = useDispatch();

  const { data: statisData } = useSelector(selectGisLinesStatusFromWebservice);
  const linesData = useSelector(state => state.gisLinesFromDatabase.data);
  const [lineColors, setLineColors] = useState({});
  const [tooltipContents, setTooltipContents] = useState({});
  const stations = useSelector(selectGisStationsStaticDistrict)?.Points ?? [];

  useEffect(() => {
    dispatch(fetchGisLinesThunk());
    dispatch(fetchGisLinesStatusThunk());
  }, [dispatch]);

  useEffect(() => {
    if (!statisData || !Array.isArray(statisData)) return;

    const colorsByModule = {};
    const newTooltipContents = {};
    const valueMap = {};

    const sortedStatis = [...statisData].sort((a, b) => a.Level - b.Level);

    sortedStatis.forEach(statis => {
      const key = `${statis.IdLD}-${statis.Modul}`;
      if (!valueMap[key]) {
        valueMap[key] = {
          messages: [],
          messwert: undefined,
          schleifenwert: undefined,
        };
      }

      if (
        statis.DpName.endsWith("_Messwert") &&
        statis.Value !== "True" &&
        !valueMap[key].messwert
      ) {
        valueMap[key].messwert = statis.Value;
      }

      if (statis.DpName.endsWith("_Schleifenwert") && !valueMap[key].schleifenwert) {
        valueMap[key].schleifenwert = statis.Value;
      }

      if (statis.Message && statis.Message !== "?") {
        valueMap[key].messages.push({
          message: statis.Message,
          prioColor:
            statis.PrioColor && statis.PrioColor !== "#ffffff" ? statis.PrioColor : "green",
        });
      }
    });

    sortedStatis.forEach(statis => {
      const key = `${statis.IdLD}-${statis.Modul}`;
      const matchingLine = linesData.find(
        item => item.idLD === statis.IdLD && item.idModul === statis.Modul
      );

      if (matchingLine) {
        const values = valueMap[key];

        colorsByModule[key] = values.messages.length > 0 ? values.messages[0].prioColor : "green";

        newTooltipContents[key] = generateLineTooltipContent(
          statis,
          matchingLine,
          values,
          stations
        );
      }
    });

    setLineColors(colorsByModule);
    setTooltipContents(newTooltipContents);
  }, [statisData, linesData, stations]);

  return { lineColors, tooltipContents };
};

export default useLineData;