"use client"; // Wichtig, um sicherzustellen, dass der Code nur auf dem Client ausgeführt wird
import React, { useEffect, useState, useRef } from "react";
import { Icon } from "@iconify/react";

function Footer() {
  const [showSlider, setShowSlider] = useState(false);
  const sliderRef = useRef<HTMLDivElement>(null);

  const pdfFiles = [
    // "ACCESS.PDF",
    // "CPL.PDF",
    //"CPL220.PDF",
    //"CPL3.PDF",
    //"Daten_APL.pdf",
    //"Daten_CDO.pdf",
    //"Daten_DPL.pdf",
    //"KUE605.PDF",
    //"KUE605uC.PDF",
    //"KUE605uF.PDF",
    "KUE705FO.PDF",
    //"Modem.pdf",
    //"PST212.PDF",
    //"Temper.pdf",
    //"Wasser.pdf",
    //"XIOPM.PDF",
  ];

  // Funktion zum Laden der PDFs direkt aus dem öffentlichen Verzeichnis
  const loadPDF = (fileName: string) => {
    const pdfUrl = `/doku/${fileName}`; // Annahme: Die PDFs liegen im Ordner "public/doku"
    window.open(pdfUrl, "_blank"); // Öffnet die PDF in einem neuen Tab
    setShowSlider(false);
  };

  // Schließt den Slider, wenn außerhalb geklickt wird
  useEffect(() => {
    function handleClickOutside(event: MouseEvent) {
      if (
        sliderRef.current &&
        !sliderRef.current.contains(event.target as Node)
      ) {
        setShowSlider(false);
      }
    }

    if (showSlider) {
      document.addEventListener("mousedown", handleClickOutside);
    } else {
      document.removeEventListener("mousedown", handleClickOutside);
    }

    return () => {
      document.removeEventListener("mousedown", handleClickOutside);
    };
  }, [showSlider]);

  return (
    <footer className="relative bg-[var(--color-surface-alt)] border-t border-base p-4 xl:p-2 2xl:p-4 overflow-hidden text-[var(--color-fg)] laptop:h-[5vh] theme-transition">
      <div className="container mx-auto flex justify-between">
        <div className="flex flex-row space-x-2 items-center">
          <Icon
            icon="material-symbols:factory-outline"
            className="text-xl text-accent"
          />
          <p className="text-sm text-fg-muted">
            Littwin Systemtechnik GmbH & Co. KG
          </p>
        </div>
        <div className="flex flex-row space-x-2 items-center">
          <Icon icon="charm:phone" className="text-xl text-accent" />
          <p className="text-sm text-fg-muted">Telefon: 04402 972577-0</p>
        </div>
        <div className="flex flex-row space-x-2 items-center">
          <Icon icon="mdi:email-outline" className="text-xl text-accent" />
          <p className="text-sm text-fg-muted">
            kontakt@littwin-systemtechnik.de
          </p>
        </div>
        <div
          className="flex flex-row space-x-2 cursor-pointer items-center group"
          onClick={() => setShowSlider(true)}
        >
          <Icon
            icon="bi:book"
            className="text-xl text-accent group-hover:brightness-110 transition"
          />
          <p className="text-sm text-fg-muted group-hover:text-[var(--color-fg)] transition">
            Handbücher
          </p>
        </div>
      </div>

      <div
        ref={sliderRef}
        className={`fixed top-0 right-0 w-64 h-full bg-[var(--color-surface)] border-l border-base shadow-lg transform transition-transform duration-300 ${
          showSlider ? "translate-x-0" : "translate-x-full"
        }`}
      >
        <div className="p-4 flex justify-between items-center border-b border-base">
          <h3 className="text-base font-semibold text-[var(--color-fg)]">
            PDF Handbücher
          </h3>
          <button
            className="text-[var(--color-muted)] hover:text-[var(--color-fg)] transition"
            onClick={() => setShowSlider(false)}
            aria-label="Schließen"
          >
            <Icon icon="carbon:close" className="text-xl" />
          </button>
        </div>

        <div className="p-4">
          <ul>
            {pdfFiles.map((fileName) => (
              <li
                key={fileName}
                className="cursor-pointer text-accent hover:underline mb-2 text-sm"
                onClick={() => loadPDF(fileName)}
              >
                {fileName}
              </li>
            ))}
          </ul>
        </div>
      </div>
    </footer>
  );
}

export default Footer;