'use client'

import { ChevronDown } from 'lucide-react'
import Link from 'next/link'
import { useEffect, useRef, useState } from 'react'

type LocaleOption = {
  value: 'en' | 'fr' | 'ar'
  label: string
  flag: string
}

type FooterItem = {
  label: string
  href?: string
}

export default function StorefrontFooter({
  primaryItems,
  secondaryItems,
  localeLabel,
  rightsLabel,
  localeOptions,
  currentLocale,
  onSelectLanguage,
}: {
  primaryItems: FooterItem[]
  secondaryItems: FooterItem[]
  localeLabel: string
  rightsLabel: string
  localeOptions: LocaleOption[]
  currentLocale: LocaleOption
  onSelectLanguage: (language: LocaleOption['value']) => void
}) {
  const localeMenuRef = useRef<HTMLDivElement | null>(null)
  const [localeMenuOpen, setLocaleMenuOpen] = useState(false)

  useEffect(() => {
    function handlePointerDown(event: MouseEvent) {
      if (!localeMenuRef.current?.contains(event.target as Node)) {
        setLocaleMenuOpen(false)
      }
    }

    document.addEventListener('mousedown', handlePointerDown)
    return () => document.removeEventListener('mousedown', handlePointerDown)
  }, [])

  return (
    <footer className="border-t border-stone-200/80 bg-white/72 px-4 py-8 text-stone-600 backdrop-blur-xl transition-colors dark:border-blue-900 dark:bg-blue-950/72 dark:text-stone-300">
      <div className="shell flex flex-col items-center gap-5 text-center">
        <nav className="flex flex-wrap items-center justify-center gap-y-3 text-sm">
          {primaryItems.map((item, index) => (
            <div key={item.label} className="flex items-center">
              <FooterNavItem item={item} />
              {index < primaryItems.length - 1 ? (
                <span className="px-2 text-stone-400 dark:text-stone-600" aria-hidden="true">|</span>
              ) : null}
            </div>
          ))}
        </nav>

        <div className="flex flex-wrap items-center justify-center gap-y-3 text-sm">
          {secondaryItems.map((item) => (
            <div key={item.label} className="flex items-center">
              <FooterNavItem item={item} />
              <span className="px-2 text-stone-400 dark:text-stone-600" aria-hidden="true">|</span>
            </div>
          ))}
          <div ref={localeMenuRef} className="relative px-3">
            <button
              type="button"
              onClick={() => setLocaleMenuOpen((open) => !open)}
              className="inline-flex items-center gap-2 text-sky-600 transition hover:text-sky-700 dark:text-sky-400 dark:hover:text-sky-300"
              aria-expanded={localeMenuOpen}
              aria-haspopup="menu"
            >
              <span aria-hidden="true" className="text-base leading-none">{currentLocale.flag}</span>
              <span>{localeLabel}</span>
              <ChevronDown className={`h-4 w-4 transition-transform ${localeMenuOpen ? 'rotate-180' : ''}`} />
            </button>
            {localeMenuOpen ? (
              <div className="absolute left-1/2 top-full z-20 mt-3 w-56 -translate-x-1/2 overflow-hidden rounded-2xl border border-stone-200 bg-white/95 text-left shadow-[0_20px_60px_rgba(0,0,0,0.12)] backdrop-blur dark:border-blue-900 dark:bg-blue-950/95 dark:shadow-[0_20px_60px_rgba(0,0,0,0.35)]">
                {localeOptions.map((option) => (
                  <button
                    key={option.value}
                    type="button"
                    onClick={() => {
                      onSelectLanguage(option.value)
                      setLocaleMenuOpen(false)
                    }}
                    className="flex w-full items-center gap-3 px-4 py-3 text-sm text-stone-700 transition hover:bg-stone-100 hover:text-blue-900 dark:text-stone-200 dark:hover:bg-blue-900/40 dark:hover:text-white"
                  >
                    <span aria-hidden="true" className="text-base leading-none">{option.flag}</span>
                    <span>{option.label}</span>
                  </button>
                ))}
              </div>
            ) : null}
          </div>
        </div>

        <p className="text-sm text-stone-500 dark:text-stone-400">
          &copy; {new Date().getFullYear()} RentalDriveGo. {rightsLabel}
        </p>
      </div>
    </footer>
  )
}

function FooterNavItem({ item }: { item: FooterItem }) {
  const className = 'px-3 text-stone-600 transition hover:text-blue-900 dark:text-stone-300 dark:hover:text-white'

  if (item.href) {
    return (
      <Link href={item.href} className={className}>
        {item.label}
      </Link>
    )
  }

  return <span className={className}>{item.label}</span>
}