"use client"; // app/dashboard/page.jsx
import React, { useEffect } from "react";
import { useRouter } from "next/navigation";
import "tailwindcss/tailwind.css";
import "@fontsource/roboto";
import "bootstrap-icons/font/bootstrap-icons.css";
import CPLStatus from "../components/main/uebersicht/modulesStatus/CPLStatus";
import KabelModulStatus from "../components/main/uebersicht/modulesStatus/KabelModulStatus";
import { Icon } from "@iconify/react";
import { useSelector } from "react-redux";
import { RootState } from "../redux/store";
import { useDispatch } from "react-redux";
import {
  setOpcUaZustand,
  setOpcUaActiveClientCount,
  setOpcUaNodesetName,
} from "../redux/slices/variablesSlice";
import webVersion from "../config/webVersion";
import Last20MessagesTable from "../components/main/uebersicht/Last20MessagesTable";
import NetworkInfo from "../components/main/uebersicht/NetworkInfo";
import VersionInfo from "../components/main/uebersicht/VersionInfo";

function Dashboard() {
  const router = useRouter();
  const dispatch = useDispatch();
  useEffect(() => {
    if (typeof window !== "undefined") {
      dispatch(setOpcUaZustand(window.win_opcUaZustand || "Unbekannt"));
      dispatch(
        setOpcUaActiveClientCount(
          Number(window.win_opcUaActiveClientCount) || 0
        )
      );
      dispatch(setOpcUaNodesetName(window.win_opcUaNodesetName || "Unbekannt"));
    }
  }, []);

  // Redux-Variablen abrufen
  const opcUaZustand = useSelector(
    (state: RootState) => state.variables.opcUaZustand
  );
  const opcUaActiveClientCount = useSelector(
    (state: RootState) => state.variables.opcUaActiveClientCount
  );
  const opcUaNodesetName = useSelector(
    (state: RootState) => state.variables.opcUaNodesetName
  );
  const rawLast20Messages = useSelector(
    (state: RootState) => state.variables.last20Messages
  );
  const ip = useSelector((state: RootState) => state.variables.ip);
  const subnet = useSelector((state: RootState) => state.variables.subnet);
  const gateway = useSelector((state: RootState) => state.variables.gateway);
  const appVersion = useSelector(
    (state: RootState) => state.variables.appVersion
  );
  const kueCableBreak = useSelector(
    (state: RootState) => state.variables.kueCableBreak
  );
  const kueOnline = useSelector(
    (state: RootState) => state.variables.kueOnline
  );
  const kueVersion = useSelector(
    (state: RootState) => state.variables.kueVersion
  );
  const kueAlarm1 = useSelector(
    (state: RootState) => state.variables.kueAlarm1
  );
  const kueAlarm2 = useSelector(
    (state: RootState) => state.variables.kueAlarm2
  );
  const kueGroundFault = useSelector(
    (state: RootState) => state.variables.kueGroundFault
  );

  // Hilfsfunktion zum Parsen der Nachrichten
  const parseMessages = (messages) => {
    if (typeof messages === "string") {
      messages = messages
        .replace(/<tr>/g, "\n")
        .replace(/<\/?td>/g, "")
        .replace(/<\/tr>/g, "")
        .trim();
      const rows = messages.split("\n");
      return rows.map((row) => [
        row.substring(0, 5),
        row.substring(5, 10),
        row.substring(10, 29),
        row.substring(33, row.length - 1),
        row.substring(row.length - 1),
      ]);
    }
    return [];
  };

  const last20Messages = parseMessages(rawLast20Messages);

  const handleModuleClick = (rackNumber) => {
    router.push(`/kabelueberwachung?rack=${rackNumber}`);
  };

  const renderBaugruppentraeger = () => {
    const baugruppen: JSX.Element[] = [];
    const numBaugruppen = Math.ceil(kueOnline.length / 8);

    for (let i = 0; i < numBaugruppen; i++) {
      const slots = kueOnline.slice(i * 8, (i + 1) * 8);

      baugruppen.push(
        <div
          key={i}
          className="flex bg-white shadow-md rounded-lg mb-4 xl:mb-0 lg:mb-0  border border-gray-200 w-full laptop:scale-y-75 xl:scale-y-90"
        >
          <div className="flex gap-1">
            {slots.map((version, index) => {
              const slotNumber = i * 8 + index + 1;
              const isSlotOnline = kueOnline[slotNumber - 1] === 1;
              const moduleVersion = kueVersion[slotNumber - 1] || version;

              // Berechnung der Rack-Nummer basierend auf dem slotNumber
              const rackNumber = Math.ceil(slotNumber / 8); // 1–8 -> Rack 1, 9–16 -> Rack 2 usw.

              return (
                <div
                  key={slotNumber}
                  className="cursor-pointer"
                  onClick={() => handleModuleClick(rackNumber)} // Klick-Handler mit Rack-Nummer
                >
                  <KabelModulStatus
                    slot={slotNumber}
                    isOnline={isSlotOnline}
                    moduleVersion={moduleVersion}
                    kueCableBreak={kueCableBreak}
                    kueAlarm1={kueAlarm1}
                    kueAlarm2={kueAlarm2}
                    kueGroundFault={kueGroundFault}
                  />
                </div>
              );
            })}
          </div>
        </div>
      );
    }
    return baugruppen;
  };

  return (
    <div className="flex flex-col gap-3 p-4 h-[calc(100vh-13vh-8vh)] laptop:h-[calc(100vh-10vh-5vh)] xl:h-[calc(100vh-10vh-6vh)] laptop:gap-0 ">
      <div className="flex justify-between items-center w-full lg:w-2/3">
        <div className="flex justify-between gap-1  ">
          <Icon
            icon="ri:calendar-schedule-line"
            className="text-littwin-blue text-4xl xl:text-2xl"
          />
          <h1 className="text-xl font-bold text-gray-700 xl:text-base">
            Letzten 20 Meldungen
          </h1>
        </div>
      </div>

      <div className="flex flex-col lg:flex-row gap-0 overflow-hidden  flex-grow">
        <Last20MessagesTable />

        <div
          className="shadow-md rounded-lg 
             w-full sm:w-3/4 md:w-2/3 lg:w-1/2 xl:w-1/3 
       
             flex flex-col gap-2"
        >
          <div className="bg-gray-50 p-4 sm:p-3 md:p-4 lg:p-2 xl:p-2 rounded-lg shadow-sm border border-gray-200 w-full ">
            <VersionInfo />
          </div>

          {renderBaugruppentraeger()}
        </div>
      </div>

      <NetworkInfo />
    </div>
  );
}

export default Dashboard;
