import { useState, useEffect } from "react"
import Link from "next/link"
import JavaText from "./java_tutorial.json"
import { JSX, SVGProps } from "react"

export default function Layout({ children }) {
  const JavaContent = JavaText
  const [showButton, setShowButton] = useState(false)

  useEffect(() => {
    const handleScroll = () => {
      if (window.scrollY > 300) {
        setShowButton(true)
      } else {
        setShowButton(false)
      }
    }

    window.addEventListener("scroll", handleScroll)

    return () => {
      window.removeEventListener("scroll", handleScroll)
    }
  }, [])

  const scrollToTop = () => {
    window.scrollTo({
      top: 0,
      behavior: "smooth"
    })
  }

  return (
      <div className="flex flex-col min-h-[100dvh] scroll-smooth">
        <style jsx global>{`
                html {
                    scroll-behavior: smooth;
                }
            `}</style>
        <header className="bg-primary text-primary-foreground py-4 px-6 shadow">
          <div className="container mx-auto flex items-center justify-between">
            <Link href="/" className="flex items-center gap-2 font-bold text-xl" prefetch={false}>
              <CodeIcon className="w-6 h-6"/>
              Dot Java
            </Link>
            <nav className="hidden md:flex items-center gap-6">
              {JavaContent.sections.map((section, index) => (
                  <Link key={index} href={`#${section.id}`} className="hover:underline" prefetch={false}>
                    {section.title}
                  </Link>
              ))}
              <Link href="/editor" className="hover:underline" prefetch={false}>
                Java Code Editor
              </Link>
            </nav>
          </div>
        </header>
        <main className="flex-1">
          {children}
        </main>
        {showButton && (
            <button
                onClick={scrollToTop}
                className="fixed bottom-10 right-10 bg-primary text-primary-foreground p-3 rounded-full shadow-lg hover:bg-primary-dark transition"
            >
              ↑ Top
            </button>
        )}
        <footer className="bg-muted text-muted-foreground py-6">
          <div className="container mx-auto px-4 md:px-6 flex items-center justify-between">
            <p className="text-sm">&copy; 2024 Java Tutorials. All rights reserved.</p>
            <nav className="flex items-center gap-4">
              <a href="#" className="hover:underline">License</a>
              <a href="https://github.com" target="_blank" rel="noopener noreferrer" className="hover:underline">
                <GitHubIcon className="w-6 h-6"/>
              </a>
              <a href="mailto:your-email@gmail.com" className="hover:underline">
                <GmailIcon className="w-6 h-6"/>
              </a>
              <a href="https://www.linkedin.com" target="_blank" rel="noopener noreferrer" className="hover:underline">
                <LinkedInIcon className="w-6 h-6"/>
              </a>
            </nav>
          </div>
        </footer>
      </div>
  )
}

function CodeIcon(props: JSX.IntrinsicAttributes & SVGProps<SVGSVGElement>) {
  return (
      <svg
          {...props}
          xmlns="http://www.w3.org/2000/svg"
          width="24"
          height="24"
          viewBox="0 0 24 24"
          fill="none"
          stroke="currentColor"
          strokeWidth="2"
          strokeLinecap="round"
          strokeLinejoin="round"
      >
        <polyline points="16 18 22 12 16 6" />
        <polyline points="8 6 2 12 8 18" />
      </svg>
  )
}

function GitHubIcon(props: JSX.IntrinsicAttributes & SVGProps<SVGSVGElement>) {
  return (
      <svg
          {...props}
          xmlns="http://www.w3.org/2000/svg"
          viewBox="0 0 24 24"
          fill="currentColor"
          stroke="currentColor"
          strokeWidth="0"
      >
        <path d="M12 .5C5.48.5.5 5.48.5 12c0 5.08 3.29 9.35 7.85 10.86.58.1.79-.24.79-.54 0-.27-.01-.99-.01-1.94-3.19.69-3.86-1.54-3.86-1.54-.53-1.36-1.29-1.72-1.29-1.72-1.05-.72.08-.71.08-.71 1.16.08 1.77 1.2 1.77 1.2 1.03 1.77 2.69 1.26 3.34.96.1-.75.4-1.26.73-1.55-2.55-.29-5.23-1.28-5.23-5.72 0-1.26.45-2.29 1.2-3.1-.12-.29-.52-1.45.12-3.02 0 0 .97-.31 3.17 1.18.92-.26 1.91-.39 2.89-.39.98 0 1.97.13 2.89.39 2.2-1.49 3.17-1.18 3.17-1.18.64 1.57.24 2.73.12 3.02.75.81 1.2 1.84 1.2 3.1 0 4.46-2.69 5.43-5.25 5.71.41.35.78 1.03.78 2.08 0 1.5-.01 2.72-.01 3.08 0 .3.21.65.8.54C20.71 21.35 24 17.08 24 12c0-6.52-4.98-11.5-12-11.5z"/>
      </svg>
  )
}

function GmailIcon(props: JSX.IntrinsicAttributes & SVGProps<SVGSVGElement>) {
  return (
      <svg
          {...props}
          xmlns="http://www.w3.org/2000/svg"
          viewBox="0 0 24 24"
          fill="currentColor"
          stroke="currentColor"
          strokeWidth="0"
      >
        <path d="M12 12.713l11.985-8.677a.868.868 0 0 0-.491-.148H.506c-.177 0-.344.055-.491.148L12 12.713zm0 1.431L.035 5.596A.875.875 0 0 0 0 6.125v11.75c0 .478.387.875.875.875h22.25c.478 0 .875-.387.875-.875V6.125a.875.875 0 0 0-.035-.529L12 14.144z"/>
      </svg>
  )
}

function LinkedInIcon(props: JSX.IntrinsicAttributes & SVGProps<SVGSVGElement>) {
  return (
      <svg
          {...props}
          xmlns="http://www.w3.org/2000/svg"
          viewBox="0 0 24 24"
          fill="currentColor"
          stroke="currentColor"
          strokeWidth="0"
      >
        <path d="M19 0h-14c-2.761 0-5 2.239-5 5v14c0 2.761 2.239 5 5 5h14c2.761 0 5-2.239 5-5v-14c0-2.761-2.239-5-5-5zm-11 19h-3v-11h3v11zm-1.5-12.5c-.966 0-1.75-.784-1.75-1.75s.784-1.75 1.75-1.75 1.75.784 1.75 1.75-.784 1.75-1.75 1.75zm13.5 12.5h-3v-5.5c0-1.379-1.121-2.5-2.5-2.5s-2.5 1.121-2.5 2.5v5.5h-3v-11h3v1.474c.809-1.161 2.201-1.974 3.5-1.974 2.481 0 4.5 2.019 4.5 4.5v7z"/>
      </svg>
  )
}