import React, { useState, useEffect } from "react";
import ReactModal from "react-modal";
import Chart from "chart.js/auto";
import KueModal from "../modales/KueModal";

function Kue705FO({
  isolationswert,
  schleifenwiderstand,
  modulName,
  kueVersion = "V4.19",
  kueOnline,
  slotIndex,
  tdrLocation,
}) {
  const [currentModulName, setCurrentModulName] = useState(modulName);
  const [activeButton, setActiveButton] = useState("Schleife");
  const [displayText, setDisplayText] = useState("Schleifenwiderstand [kOhm]");
  const [loading, setLoading] = useState(false);
  const [currentDisplayValue, setCurrentDisplayValue] = useState(
    schleifenwiderstand || "0"
  );
  const [showModal, setShowModal] = useState(false);
  const [showChartModal, setShowChartModal] = useState(false); // Modal für die Messkurve
  const [chartData, setChartData] = useState(null); // State für die geladene Chart-Daten

  const handleOpenModal = () => {
    setShowModal(true);
  };

  const handleCloseModal = () => {
    setShowModal(false);
  };

  // Funktion zum Anzeigen des Chart-Modals
  const handleOpenChartModal = () => {
    setShowChartModal(true);
    loadChartData(); // Lade die Daten, wenn das Modal geöffnet wird
  };

  const handleCloseChartModal = () => {
    setShowChartModal(false);
  };

  // Daten laden und den Chart erstellen
  const loadChartData = () => {
    const slot = slotIndex;
    const fileData = `../cpl?4000values/slot${slot}.json`; // Je nach Slot wird die entsprechende Datei geladen

    fetch(fileData)
      .then((response) => response.json())
      .then((data) => {
        setChartData(data); // Daten setzen
        createChart(data);
        console.log("Messkurvendaten geladen:", data);
      })
      .catch((error) => {
        console.error("Fehler beim Laden der Messkurvendaten:", error);
      });
  };

  // Funktion zum Erstellen des Charts
  const createChart = (data) => {
    const ctx = document.getElementById("myChart").getContext("2d");

    new Chart(ctx, {
      type: "line",
      data: {
        labels: data.map((row) => row.t), // Zeitwerte
        datasets: [
          {
            label: "Isolationswiderstand",
            data: data.map((row) => row.m),
            borderColor: "#00AEEF",
            fill: false,
            yAxisID: "y",
          },
          {
            label: "Schleifenwiderstand",
            data: data.map((row) => row.n),
            borderColor: "black",
            fill: false,
            yAxisID: "y1",
          },
          {
            label: "Messung gültig",
            data: data.map((row) => row.v),
            borderColor: "gray",
            fill: false,
            yAxisID: "y1",
          },
        ],
      },
      options: {
        scales: {
          y: {
            type: "linear",
            position: "left",
          },
          y1: {
            type: "linear",
            position: "right",
          },
        },
      },
    });
  };

  // Funktion für die TDR-Messung
  const goTDR = () => {
    let slot = slotIndex;

    if (slot >= 32) {
      return;
    }

    let slotFormat = slot < 10 ? `0${slot}` : `${slot}`;
    const apiUrl = process.env.NEXT_PUBLIC_API_BASE_URL;

    setLoading(true);
    fetch(
      `${apiUrl}/CPL?Service/KUEdetailTDR.ACP&KTT${slotFormat}=1&slot=${slot}`,
      {
        method: "GET",
      }
    )
      .then((response) => {
        if (response.ok) {
          console.log("TDR erfolgreich gestartet für Slot", slot);
        } else {
          console.error("Fehler beim Senden der TDR-Anfrage");
        }
      })
      .catch((error) => {
        console.error("Fehler:", error);
      })
      .finally(() => setLoading(false));
  };

  // Funktion für die Schleifenmessung
  const goLoop = () => {
    let slot = slotIndex;

    if (slot >= 32) {
      return;
    }

    let slotFormat = slot < 10 ? `0${slot}` : `${slot}`;
    const apiUrl = process.env.NEXT_PUBLIC_API_BASE_URL;

    setLoading(true);
    fetch(
      `${apiUrl}/CPL?Service/KUEdetail.HTML&KS_${slotFormat}=1&slot=${slot}`,
      {
        method: "GET",
      }
    )
      .then((response) => {
        if (response.ok) {
          console.log("Schleifenmessung erfolgreich gestartet für Slot", slot);
        } else {
          console.error("Fehler beim Senden der Schleifen-Anfrage");
        }
      })
      .catch((error) => {
        console.error("Fehler:", error);
      })
      .finally(() => setLoading(false));
  };

  const handleModulNameChange = (newName) => {
    setCurrentModulName(newName);
  };

  // Überprüfe, ob ein Modul im Slot vorhanden ist
  const isModulPresent = kueOnline[slotIndex] === 1;

  const handleButtonClick = (button) => {
    if (button === "Schleife") {
      setActiveButton("Schleife");
      setDisplayText("Schleifenwiderstand [kOhm]");
      setCurrentDisplayValue(schleifenwiderstand || "0");
    } else if (button === "TDR") {
      setActiveButton("TDR");
      setDisplayText("Entfernung [Km]");
      setCurrentDisplayValue(tdrLocation || "0");
    }
  };

  // Bestimme, welche Funktion ausgeführt wird, basierend auf dem aktiven Button
  const handleRefreshClick = () => {
    if (activeButton === "Schleife") {
      goLoop(); // Wenn Schleife aktiv ist, starte goLoop
    } else if (activeButton === "TDR") {
      goTDR(); // Wenn TDR aktiv ist, starte goTDR
    }
  };
  return (
    <div className="relative bg-gray-300 w-[116px] h-[390px] border border-gray-400 scale-110 top-3">
      {isModulPresent ? (
        <>
          <div className="relative w-[113.202px] h-[242.492px] bg-littwin-blue border-[1.5px] border-gray-400 z-0">
            <div className="flex items-start justify-between h-[30px]">
              <div className="relative w-[20px] h-[20px] bg-gray-800 flex items-center justify-center">
                <span className="text-white text-[10px]">{slotIndex + 1}</span>
              </div>

              <h3 className="text-white font-bold text-[9px] mr-4">KÜ705-FO</h3>

              <button
                onClick={handleOpenModal}
                className="w-[15px] h-[15px] bg-gray-400 flex items-center justify-center"
              >
                <span className="text-white text-[20px]">⚙</span>
              </button>
            </div>

            <KueModal
              showModal={showModal}
              onClose={handleCloseModal}
              slot={slotIndex}
              onModulNameChange={handleModulNameChange}
            />

            <div className="flex flex-col mt-[10px] ml-[10px]">
              <div className="flex items-center">
                <div className="w-[10px] h-[10px] bg-green-500 rounded-full mr-2"></div>
                <span className="text-white text-[10px]">Betrieb</span>
              </div>
              <div className="flex items-center mt-1">
                <div className="w-[10px] h-[10px] bg-gray-300 rounded-full mr-2"></div>
                <span className="text-white text-[10px]">Alarm</span>
              </div>
            </div>

            <div className="relative mt-[50px] mx-auto bg-black text-white w-[80px] h-[40px] flex items-center justify-center text-[18px] z-10">
              <div className="text-center">
                <span>{isolationswert || ">200"}</span>
                <div className="text-[8px]">ISO MOhm</div>
              </div>
            </div>

            <div className="absolute top-0 left-[75px] w-[3px] h-full bg-white z-0"></div>
            <div className="absolute top-[40px] left-[75px] w-[40px] h-[3px] bg-white z-0"></div>

            <div className="absolute bottom-[20px] left-[10px] text-black text-[10px] bg-gray-300 p-1 w-[100px] text-center">
              {currentModulName || "Test1"}
            </div>

            <div className="absolute bottom-1 right-1 text-black text-[8px]">
              {kueVersion}
            </div>
          </div>

          <div className="absolute bottom-1 left-[1.095px] w-[113.182px] h-[130px] bg-gray-300 border-[1.5px] border-gray-400 p-1">
            <span className="text-black text-[6px] absolute top-[2px] left-1 mt-1">
              {displayText}
            </span>

            <div className="relative w-full h-[45px] bg-gray-100 border border-gray-400 flex items-center justify-center mt-3">
              <button
                onClick={handleRefreshClick} // Dynamische Funktion basierend auf aktivem Button
                className="absolute -top-1 -right-1 w-[20px] h-[20px] bg-gray-400 flex items-center justify-center"
                disabled={loading} // Disable button while loading
              >
                <span className="text-white text-[18px]">⟳</span>
              </button>

              <div className="absolute bottom-[5px] left-1/2 transform -translate-x-1/2">
                <div className="top-[220px] left-[10px] text-black text-[10px]">
                  <p>{currentDisplayValue}</p>
                </div>
              </div>
            </div>

            <div className="flex mt-2 space-x-1">
              <button
                onClick={() => handleButtonClick("Schleife")}
                className={`w-[50%] h-[25px] text-white text-[10px] flex items-center justify-center ${
                  activeButton === "Schleife"
                    ? "bg-littwin-blue"
                    : "bg-gray-400"
                }`}
              >
                Schleife
              </button>
              <button
                onClick={() => handleButtonClick("TDR")}
                className={`w-[50%] h-[25px] text-white text-[10px] flex items-center justify-center ${
                  activeButton === "TDR" ? "bg-littwin-blue" : "bg-gray-400"
                }`}
              >
                TDR
              </button>
            </div>

            <button
              onClick={handleOpenChartModal} // Öffnet das Chart-Modal
              className="w-full h-[25px] bg-littwin-blue text-white text-[10px] flex items-center justify-center mt-1"
            >
              Messkurve
            </button>
          </div>

          {/* Modal für Messkurve */}
          {showChartModal && (
            <ReactModal
              isOpen={showChartModal}
              onRequestClose={handleCloseChartModal}
              ariaHideApp={false}
              style={{
                overlay: { backgroundColor: "rgba(0, 0, 0, 0.5)" },
                content: {
                  top: "50%",
                  left: "50%",
                  right: "auto",
                  bottom: "auto",
                  marginRight: "-50%",
                  transform: "translate(-50%, -50%)",
                  width: "90%",
                  maxWidth: "800px",
                  height: "600px",
                  padding: "20px",
                },
              }}
            >
              <h2>Messkurve Slot {slotIndex + 1}</h2>
              <canvas
                id="myChart"
                style={{ width: "100%", height: "400px" }}
              ></canvas>
              <button
                onClick={handleCloseChartModal}
                className="bg-red-500 text-white p-2 mt-4"
              >
                Schließen
              </button>
            </ReactModal>
          )}
        </>
      ) : (
        <div className="flex items-center justify-center h-full text-gray-500">
          <p>Kein Modul im Slot {slotIndex + 1}</p>
        </div>
      )}
    </div>
  );
}

export default Kue705FO;
