'use client'

import { motion } from 'framer-motion'
import { useState, useEffect } from 'react'
import { Link, usePathname } from '@/i18n/routing'
import { useTranslations } from 'next-intl'
import LocaleSwitcher from './LocaleSwitcher'
import { cn } from '@/lib/utils'
import { Menu, X } from 'lucide-react'

export default function Header() {
  const [scrolled, setScrolled] = useState(false)
  const [mobileMenuOpen, setMobileMenuOpen] = useState(false)
  const t = useTranslations('nav')
  const pathname = usePathname()

  const isHome = pathname === '/'
  // If we are not on the home page, the header should always look "scrolled"
  // so the text is visible against the light background.
  const isScrolledOrInner = scrolled || !isHome

  useEffect(() => {
    const handler = () => setScrolled(window.scrollY > 50)
    window.addEventListener('scroll', handler, { passive: true })
    // Initialize
    handler()
    return () => window.removeEventListener('scroll', handler)
  }, [])

  return (
    <motion.header
      initial={{ y: -20, opacity: 0 }}
      animate={{ y: 0, opacity: 1 }}
      transition={{ duration: 0.6, ease: [0.22, 1, 0.36, 1] }}
      className={cn(
        'fixed top-0 inset-x-0 z-50 transition-all duration-300',
        isScrolledOrInner
          ? 'bg-surface/85 backdrop-blur-md border-b border-outline-variant/20 shadow-sm py-4'
          : 'bg-transparent py-6'
      )}
    >
      <div className="max-w-container-max mx-auto px-margin-mobile md:px-gutter">
        <div className="flex items-center justify-between">
          {/* Logo */}
          <Link href="/" className="flex items-center z-50">
            <span className={cn(
              "font-serif text-2xl md:text-[32px] font-bold tracking-tight italic transition-colors duration-300",
              isScrolledOrInner ? "text-secondary" : "text-white"
            )}>
              Sitar Apart
            </span>
          </Link>

          {/* Desktop Navigation */}
          <nav className="hidden md:flex items-center gap-8">
            <Link 
              href="/" 
              className={cn(
                "text-[14px] font-bold tracking-wider uppercase transition-colors duration-300 hover:text-tertiary cursor-pointer focus:outline-none focus-visible:ring-2 focus-visible:ring-primary rounded-sm px-1",
                isScrolledOrInner ? "text-secondary" : "text-white/90"
              )}
            >
              {t('home')}
            </Link>
            <Link 
              href="/dairelerimiz" 
              className={cn(
                "text-[14px] font-bold tracking-wider uppercase transition-colors duration-300 hover:text-tertiary cursor-pointer focus:outline-none focus-visible:ring-2 focus-visible:ring-primary rounded-sm px-1",
                isScrolledOrInner ? "text-secondary" : "text-white/90"
              )}
            >
              {t('rooms')}
            </Link>
            <Link 
              href="/galeri" 
              className={cn(
                "text-[14px] font-bold tracking-wider uppercase transition-colors duration-300 hover:text-tertiary cursor-pointer focus:outline-none focus-visible:ring-2 focus-visible:ring-primary rounded-sm px-1",
                isScrolledOrInner ? "text-secondary" : "text-white/90"
              )}
            >
              {t('gallery')}
            </Link>
            <Link 
              href="/iletisim" 
              className={cn(
                "text-[14px] font-bold tracking-wider uppercase transition-colors duration-300 hover:text-tertiary cursor-pointer focus:outline-none focus-visible:ring-2 focus-visible:ring-primary rounded-sm px-1",
                isScrolledOrInner ? "text-secondary" : "text-white/90"
              )}
            >
              {t('contact')}
            </Link>
          </nav>

          {/* Desktop Actions */}
          <div className="hidden md:flex items-center gap-4">
            <LocaleSwitcher scrolled={isScrolledOrInner} />
            <Link 
              href="/iletisim" 
              className={cn(
                "px-6 py-3 rounded-full text-[14px] font-bold tracking-wider uppercase transition-all duration-300 hover:opacity-80 cursor-pointer focus:outline-none focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2",
                isScrolledOrInner 
                  ? "bg-accent-pink text-white shadow-md"
                  : "bg-accent-pink text-white backdrop-blur-md"
              )}
            >
              {t('book_now')}
            </Link>
          </div>

          {/* Mobile Menu Button */}
          <button 
            aria-label="Toggle menu"
            className="md:hidden z-50 p-2 cursor-pointer focus:outline-none focus-visible:ring-2 focus-visible:ring-primary rounded-md transition-all duration-300"
            onClick={() => setMobileMenuOpen(!mobileMenuOpen)}
          >
            {mobileMenuOpen ? (
              <X className={cn("w-6 h-6", isScrolledOrInner ? "text-secondary" : "text-white")} />
            ) : (
              <Menu className={cn("w-6 h-6", isScrolledOrInner ? "text-secondary" : "text-white")} />
            )}
          </button>
        </div>
      </div>

      {/* Mobile Menu */}
      {mobileMenuOpen && (
        <div className="md:hidden absolute top-full left-0 right-0 bg-surface border-b border-outline-variant/20 shadow-lg p-6">
          <nav className="flex flex-col gap-6">
            <Link 
              href="/" 
              onClick={() => setMobileMenuOpen(false)}
              className="text-secondary hover:text-tertiary font-bold tracking-wider uppercase text-[14px]"
            >
              {t('home')}
            </Link>
            <Link 
              href="/dairelerimiz" 
              onClick={() => setMobileMenuOpen(false)}
              className="text-secondary hover:text-tertiary font-bold tracking-wider uppercase text-[14px]"
            >
              {t('rooms')}
            </Link>
            <Link 
              href="/galeri" 
              onClick={() => setMobileMenuOpen(false)}
              className="text-secondary hover:text-tertiary font-bold tracking-wider uppercase text-[14px]"
            >
              {t('gallery')}
            </Link>
            <Link 
              href="/iletisim" 
              onClick={() => setMobileMenuOpen(false)}
              className="text-secondary hover:text-tertiary font-bold tracking-wider uppercase text-[14px]"
            >
              {t('contact')}
            </Link>
            <div className="pt-6 border-t border-outline-variant/20 flex flex-col gap-4">
              <div className="self-end"><LocaleSwitcher scrolled={true} /></div>
              <Link 
                href="/iletisim" 
                onClick={() => setMobileMenuOpen(false)}
                className="bg-accent-pink text-white px-6 py-3 rounded-full text-[14px] font-bold tracking-wider uppercase text-center"
              >
                {t('book_now')}
              </Link>
            </div>
          </nav>
        </div>
      )}
    </motion.header>
  )
}