'use client';

import { AnimatePresence, m, LazyMotion, domAnimation } from 'framer-motion';
import { ArrowUp, Home, Info, Menu, X } from 'lucide-react';
import Image from 'next/image';
import Link from 'next/link';
import { usePathname } from 'next/navigation';
import React, { useEffect, useState } from 'react';
import { Button } from './Button';
import { Reveal } from './Reveal';

const Layout = ({ children }: { children: React.ReactNode }) => {
  const pathname = usePathname();
  const [showScrollTop, setShowScrollTop] = useState(false);
  const [isScrolled, setIsScrolled] = useState(false);
  const [isMobileMenuOpen, setIsMobileMenuOpen] = useState(false);

  useEffect(() => {
    const handleScroll = () => {
      setShowScrollTop(window.scrollY > 400);
      setIsScrolled(window.scrollY > 20);
    };
    
    window.addEventListener('scroll', handleScroll, { passive: true });
    return () => window.removeEventListener('scroll', handleScroll);
  }, []);

  useEffect(() => {
    setIsMobileMenuOpen(false);
  }, [pathname]);

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

  const isActive = (path: string) => pathname === path;

  const navLinks = [
    { href: '/', label: 'Startseite', icon: Home },
    { href: '/ueber-uns', label: 'Über uns', icon: Info },
  ];

  return (
    <div className="min-h-screen flex flex-col font-sans">
      <Reveal direction="down" fullWidth trigger="mount" className="fixed top-0 left-0 right-0 z-[100]">
        <header
          className={`transition-all duration-300 flex items-center py-1 ${
            isScrolled
              ? 'bg-white/90 backdrop-blur-lg border-b border-slate-200 shadow-sm'
              : 'bg-gradient-to-b from-white/80 via-white/40 to-transparent'
          }`}
        >
        <div className="container-custom flex justify-between items-center w-full relative z-10">
          <Link
            href="/"
            className="relative z-10 flex items-center group"
            aria-label="MB Grid Solutions - Zur Startseite"
          >
            <div className={`relative transition-all duration-300 ${isScrolled ? 'h-[50px] md:h-[80px] w-[120px] md:w-[200px] mt-0 mb-[-10px]' : 'h-[80px] md:h-[140px] w-[180px] md:w-[320px] mt-2 md:mt-4 mb-[-20px] md:mb-[-40px]'}`}>
              <Image
                src="/assets/logo.png"
                alt="MB Grid Solutions"
                fill
                className="object-contain"
                priority
              />
            </div>
          </Link>

          {/* Desktop Navigation */}
          <nav className="hidden md:flex items-center gap-8" aria-label="Hauptnavigation">
            {navLinks.map((link) => (
              <Link 
                key={link.href}
                href={link.href} 
                className={`relative px-2 py-1 text-sm font-bold tracking-tight transition-all group ${
                  isActive(link.href) 
                    ? 'text-primary' 
                    : `${isScrolled ? 'text-slate-600' : 'text-slate-900'} hover:text-primary`
                }`}
              >
                {link.label}
                <span className={`absolute -bottom-1 left-0 w-full h-0.5 bg-accent transition-transform duration-300 origin-left ${isActive(link.href) ? 'scale-x-100' : 'scale-x-0 group-hover:scale-x-100'}`} />
              </Link>
            ))}
            <Button
              href="/kontakt"
              className="ml-4 !py-2 !px-5 !text-[10px]"
            >
              Projekt anfragen
            </Button>
          </nav>

          {/* Mobile Menu Toggle */}
          <button 
            className="md:hidden p-2 text-slate-600 hover:text-primary transition-colors"
            onClick={() => setIsMobileMenuOpen(!isMobileMenuOpen)}
            aria-label="Menü öffnen"
          >
            {isMobileMenuOpen ? <X size={24} /> : <Menu size={24} />}
          </button>
        </div>
        </header>
      </Reveal>

      {/* Mobile Menu Overlay */}
      <LazyMotion features={domAnimation}>
      <AnimatePresence>
        {isMobileMenuOpen && (
          <m.div
            initial={{ opacity: 0, y: -20 }}
            animate={{ opacity: 1, y: 0 }}
            exit={{ opacity: 0, y: -20 }}
            className="fixed inset-0 z-[90] bg-white pt-32 px-6 md:hidden"
          >
            <nav className="flex flex-col gap-4">
              {navLinks.map((link) => (
                <Link 
                  key={link.href}
                  href={link.href} 
                  className={`flex items-center gap-4 p-4 rounded-xl text-lg font-semibold transition-all ${
                    isActive(link.href) 
                      ? 'text-accent bg-accent/5' 
                      : 'text-slate-600 hover:text-primary hover:bg-slate-50'
                  }`}
                >
                  <link.icon size={24} />
                  {link.label}
                </Link>
              ))}
              <Button
                href="/kontakt"
                className="mt-4 w-full"
              >
                Projekt anfragen
              </Button>
            </nav>
          </m.div>
        )}
      </AnimatePresence>
      </LazyMotion>

      <main className="flex-grow">
        {children}
      </main>

      <button
        onClick={scrollToTop}
        className={`fixed bottom-8 right-8 w-12 h-12 bg-primary text-white rounded-full flex items-center justify-center cursor-pointer z-[80] shadow-xl transition-all duration-300 hover:-translate-y-1 hover:bg-accent ${
          showScrollTop ? 'opacity-100 translate-y-0' : 'opacity-0 translate-y-4 pointer-events-none'
        }`}
        aria-label="Nach oben scrollen"
      >
        <ArrowUp size={20} strokeWidth={2.5} />
      </button>

      <Reveal fullWidth>
        <footer className="bg-slate-900 text-slate-300 py-16 md:py-24 relative overflow-hidden group">
          <div className="absolute inset-0 grid-pattern opacity-[0.08] pointer-events-none" />
          
          {/* Animated Tech Lines */}
          <LazyMotion features={domAnimation}>
          <m.div
            animate={{ x: ['-100%', '100%'] }}
            transition={{ duration: 15, repeat: Infinity, ease: "linear" }}
            className="absolute top-0 left-0 w-full h-px bg-gradient-to-r from-transparent via-accent/30 to-transparent"
          />
          <m.div
            animate={{ x: ['100%', '-100%'] }}
            transition={{ duration: 20, repeat: Infinity, ease: "linear" }}
            className="absolute bottom-0 left-0 w-full h-px bg-gradient-to-r from-transparent via-accent/20 to-transparent"
          />
          </LazyMotion>

          {/* Corner Accents */}
          <div className="tech-corner top-8 left-8 border-t border-l border-white/10 group-hover:border-accent/30 transition-colors duration-700" />
          <div className="tech-corner bottom-8 right-8 border-b border-r border-white/10 group-hover:border-accent/30 transition-colors duration-700" />
          
          <div className="container-custom relative z-10">
          <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-10 md:gap-12 mb-12 md:mb-16">
            <div className="lg:col-span-2">
              <Link href="/" className="inline-block mb-6 md:mb-8 group">
                <div className="relative h-16 md:h-20 w-48 brightness-0 invert opacity-80 group-hover:opacity-100 transition-opacity">
                  <Image
                    src="/assets/logo.png"
                    alt="MB Grid Solutions"
                    fill
                    className="object-contain object-left"
                  />
                </div>
              </Link>
              <p className="text-slate-400 max-w-md leading-relaxed mb-8">
                Ihr spezialisierter Partner für herstellerneutrale technische Beratung und Projektbegleitung bei Energiekabelprojekten bis 110 kV.
              </p>
              <div className="flex gap-4">
                {/* Social links could go here */}
              </div>
            </div>
            
            <div>
              <h4 className="text-white font-bold mb-6">Navigation</h4>
              <nav className="flex flex-col gap-4">
                {navLinks.map((link) => (
                  <Link key={link.href} href={link.href} className="hover:text-accent transition-colors">
                    {link.label}
                  </Link>
                ))}
                <Link href="/kontakt" className="hover:text-accent transition-colors">Kontakt</Link>
              </nav>
            </div>

            <div>
              <h4 className="text-white font-bold mb-6">Rechtliches</h4>
              <nav className="flex flex-col gap-4">
                <Link href="/impressum" className="hover:text-accent transition-colors">Impressum</Link>
                <Link href="/datenschutz" className="hover:text-accent transition-colors">Datenschutz</Link>
                <Link href="/agb" className="hover:text-accent transition-colors">AGB</Link>
              </nav>
            </div>
          </div>
          
          <div className="pt-8 border-t border-slate-800 flex flex-col md:flex-row justify-between items-center gap-6 md:gap-4 text-sm text-slate-500 relative text-center md:text-left">
            <div className="absolute -top-px left-1/2 -translate-x-1/2 md:left-0 md:translate-x-0 w-12 h-px bg-accent/50" />
            <p>&copy; {new Date().getFullYear()} MB Grid Solutions & Services GmbH. <br className="md:hidden" /> Alle Rechte vorbehalten.</p>
            <p className="flex items-center gap-2">
              <span className="relative flex h-2 w-2">
                <span className="animate-ping absolute inline-flex h-full w-full rounded-full bg-accent opacity-75"></span>
                <span className="relative inline-flex rounded-full h-2 w-2 bg-accent"></span>
              </span>
              Made with <span className="text-accent">precision</span> in Germany
            </p>
          </div>
        </div>
        </footer>
      </Reveal>

      <div className="bg-slate-950 py-6 border-t border-white/5">
        <div className="container-custom">
          <p className="text-[10px] uppercase tracking-[0.2em] text-slate-600 text-center md:text-left">
            Website developed by <a href="https://mintel.me" target="_blank" rel="noopener noreferrer" className="text-slate-500 hover:text-accent transition-colors duration-300">mintel.me</a>
          </p>
        </div>
      </div>
    </div>
  );
};

export default Layout;