'use client';

import { Menu, X } from 'lucide-react';
import { usePathname } from 'next/navigation';
import { useTranslations } from 'next-intl';
import { useState } from 'react';
import { CompareFloatingBar } from '@/components/comparison/compare-floating-bar';
import { NotificationBell } from '@/components/notifications/notification-bell';
import { Button } from '@/components/ui/button';
import { LanguageSwitcher } from '@/components/ui/language-switcher';
import { Link } from '@/i18n/navigation';
import { useAuthStore } from '@/lib/auth-store';
import { cn } from '@/lib/utils';

export default function PublicLayout({ children }: { children: React.ReactNode }) {
  const pathname = usePathname();
  const { user } = useAuthStore();
  const t = useTranslations();
  const [mobileMenuOpen, setMobileMenuOpen] = useState(false);

  const navLinks = [
    {
      href: '/' as const,
      label: t('nav.home'),
      isActive: pathname === '/' || !!pathname.match(/^\/(vi|en)\/?$/),
    },
    {
      href: '/search' as const,
      label: t('nav.search'),
      isActive: pathname.includes('/search'),
    },
    {
      href: '/du-an' as const,
      label: t('nav.projects'),
      isActive: pathname.includes('/du-an'),
    },
    {
      href: '/khu-cong-nghiep' as const,
      label: t('nav.industrialParks'),
      isActive: pathname.includes('/khu-cong-nghiep'),
    },
    {
      href: '/chuyen-nhuong' as const,
      label: t('nav.transfer'),
      isActive: pathname.includes('/chuyen-nhuong'),
    },
    {
      href: '/pricing' as const,
      label: t('nav.pricing'),
      isActive: pathname.includes('/pricing'),
    },
  ];

  return (
    <div className="min-h-screen bg-background">
      <header
        role="banner"
        className="sticky top-0 z-50 border-b bg-background/95 backdrop-blur supports-[backdrop-filter]:bg-background/60"
      >
        <div className="mx-auto flex h-14 max-w-7xl items-center px-4">
          <Link href="/" className="mr-6 flex items-center space-x-2">
            <span className="text-lg font-bold text-primary">{t('common.goodgo')}</span>
          </Link>

          {/* Desktop nav */}
          <nav aria-label={t('nav.mainNav')} className="hidden items-center space-x-1 sm:flex">
            {navLinks.map((link) => (
              <Link
                key={link.href}
                href={link.href}
                className={cn(
                  'rounded-md px-3 py-2 text-sm font-medium transition-colors hover:bg-accent hover:text-accent-foreground',
                  link.isActive
                    ? 'bg-accent text-accent-foreground'
                    : 'text-muted-foreground',
                )}
              >
                {link.label}
              </Link>
            ))}
          </nav>

          <div className="ml-auto flex min-w-0 items-center gap-1 sm:gap-2">
            <LanguageSwitcher />
            {user ? (
              <>
                {/* Bell only on sm+ to avoid overcrowding mobile header */}
                <div className="hidden sm:block">
                  <NotificationBell />
                </div>
                <span className="hidden max-w-[12rem] truncate text-sm text-muted-foreground sm:inline">
                  {user.fullName}
                </span>
                {/* Dashboard button is desktop-only; mobile users reach it via the hamburger menu */}
                <Link href="/dashboard" className="hidden sm:inline-flex">
                  <Button size="sm">{t('common.dashboard')}</Button>
                </Link>
              </>
            ) : (
              <>
                <Link href="/login" className="hidden sm:inline-flex">
                  <Button variant="ghost" size="sm">
                    {t('common.login')}
                  </Button>
                </Link>
                <Link href="/register" className="hidden sm:inline-flex">
                  <Button size="sm">{t('common.register')}</Button>
                </Link>
              </>
            )}
            {/* Mobile menu toggle */}
            <button
              type="button"
              aria-label={mobileMenuOpen ? t('nav.closeMenu') : t('nav.openMenu')}
              aria-expanded={mobileMenuOpen}
              className="inline-flex shrink-0 items-center justify-center rounded-md p-2 text-muted-foreground hover:bg-accent hover:text-accent-foreground sm:hidden"
              onClick={() => setMobileMenuOpen(!mobileMenuOpen)}
            >
              {mobileMenuOpen ? <X className="h-5 w-5" /> : <Menu className="h-5 w-5" />}
            </button>
          </div>
        </div>

        {/* Mobile menu */}
        {mobileMenuOpen && (
          <nav
            aria-label={t('nav.mainNav')}
            className="border-t px-4 pb-4 pt-2 sm:hidden"
          >
            <div className="space-y-1">
              {navLinks.map((link) => (
                <Link
                  key={link.href}
                  href={link.href}
                  onClick={() => setMobileMenuOpen(false)}
                  className={cn(
                    'block rounded-md px-3 py-2.5 text-sm font-medium transition-colors',
                    link.isActive
                      ? 'bg-accent text-accent-foreground'
                      : 'text-muted-foreground hover:bg-accent hover:text-accent-foreground',
                  )}
                >
                  {link.label}
                </Link>
              ))}
            </div>
            <div className="mt-3 space-y-2 border-t pt-3">
              {user ? (
                <>
                  <p className="px-3 text-sm text-muted-foreground">{user.fullName}</p>
                  <Link href="/dashboard" onClick={() => setMobileMenuOpen(false)}>
                    <Button size="sm" className="w-full">{t('common.dashboard')}</Button>
                  </Link>
                </>
              ) : (
                <div className="flex gap-2">
                  <Link href="/login" className="flex-1" onClick={() => setMobileMenuOpen(false)}>
                    <Button variant="ghost" size="sm" className="w-full">
                      {t('common.login')}
                    </Button>
                  </Link>
                  <Link href="/register" className="flex-1" onClick={() => setMobileMenuOpen(false)}>
                    <Button size="sm" className="w-full">{t('common.register')}</Button>
                  </Link>
                </div>
              )}
            </div>
          </nav>
        )}
      </header>

      <main id="main-content" role="main">
        {children}
      </main>

      <CompareFloatingBar />

      <footer role="contentinfo" className="border-t bg-muted/40">
        <div className="mx-auto max-w-7xl px-4 py-8">
          <div className="grid gap-8 sm:grid-cols-2 lg:grid-cols-4">
            <div>
              <h3 className="mb-3 text-sm font-semibold">{t('common.goodgo')}</h3>
              <p className="text-sm text-muted-foreground">
                {t('footer.description')}
              </p>
            </div>
            <div>
              <h3 className="mb-3 text-sm font-semibold">{t('footer.propertyTypes')}</h3>
              <ul className="space-y-2 text-sm text-muted-foreground">
                <li><Link href="/search?propertyType=APARTMENT" className="hover:text-foreground">{t('propertyTypes.APARTMENT')}</Link></li>
                <li><Link href="/search?propertyType=HOUSE" className="hover:text-foreground">{t('propertyTypes.HOUSE')}</Link></li>
                <li><Link href="/search?propertyType=VILLA" className="hover:text-foreground">{t('propertyTypes.VILLA')}</Link></li>
                <li><Link href="/search?propertyType=LAND" className="hover:text-foreground">{t('propertyTypes.LAND')}</Link></li>
              </ul>
            </div>
            <div>
              <h3 className="mb-3 text-sm font-semibold">{t('footer.areas')}</h3>
              <ul className="space-y-2 text-sm text-muted-foreground">
                <li><Link href="/search?city=Hồ Chí Minh" className="hover:text-foreground">TP. Hồ Chí Minh</Link></li>
                <li><Link href="/search?city=Hà Nội" className="hover:text-foreground">Hà Nội</Link></li>
                <li><Link href="/search?city=Đà Nẵng" className="hover:text-foreground">Đà Nẵng</Link></li>
                <li><Link href="/search?city=Nha Trang" className="hover:text-foreground">Nha Trang</Link></li>
              </ul>
            </div>
            <div>
              <h3 className="mb-3 text-sm font-semibold">{t('footer.support')}</h3>
              <ul className="space-y-2 text-sm text-muted-foreground">
                <li><Link href="/pricing" className="hover:text-foreground">{t('nav.pricing')}</Link></li>
                <li><Link href="/login" className="hover:text-foreground">{t('common.login')}</Link></li>
                <li><Link href="/register" className="hover:text-foreground">{t('common.register')}</Link></li>
              </ul>
            </div>
          </div>
          <div className="mt-8 border-t pt-4 text-center text-sm text-muted-foreground">
            {t('common.allRightsReserved')}
          </div>
        </div>
      </footer>
    </div>
  );
}