'use client'

import { useState } from 'react'
import { useTranslations } from 'next-intl'
import type { VoteSite } from '@/lib/vote'

export function VotePanel({ sites, canVote }: { sites: VoteSite[]; canVote: boolean }) {
  const t = useTranslations('Vote')
  const [busyId, setBusyId] = useState<number | null>(null)
  const [message, setMessage] = useState<{ ok: boolean; text: string } | null>(null)

  async function vote(site: VoteSite) {
    if (busyId !== null) return
    window.open(site.url, '_blank', 'noopener,noreferrer')
    setBusyId(site.id)
    setMessage(null)
    try {
      const res = await fetch('/api/vote', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        credentials: 'same-origin',
        body: JSON.stringify({ url: site.url }),
      })
      const d: { success?: boolean; error?: string; points?: number; siteName?: string; hours?: number; minutes?: number } =
        await res.json()
      if (d.success) {
        setMessage({ ok: true, text: t('success', { site: d.siteName ?? site.name, points: d.points ?? 0 }) })
      } else if (d.error === 'cooldown') {
        setMessage({ ok: false, text: t('cooldown', { hours: d.hours ?? 0, minutes: d.minutes ?? 0 }) })
      } else {
        setMessage({ ok: false, text: t(d.error === 'siteNotFound' ? 'siteNotFound' : 'genericError') })
      }
    } catch {
      setMessage({ ok: false, text: t('genericError') })
    } finally {
      setBusyId(null)
    }
  }

  if (sites.length === 0) return <p className="text-amber-200/70">{t('noSites')}</p>

  return (
    <>
      <div className="flex flex-wrap justify-center gap-4">
        {sites.map((s) => (
          <div key={s.id} className="w-40 nw-card p-3 text-center">
            {s.image_url && <img src={s.image_url} alt={s.name} className="mx-auto mb-2 max-h-16" />}
            <p className="font-semibold text-amber-300">{s.name}</p>
            <p className="mb-2 text-xs text-amber-200/60">
              {s.points} {t('pv')}
            </p>
            {canVote ? (
              <button
                type="button"
                onClick={() => vote(s)}
                disabled={busyId !== null}
                className="w-full rounded bg-amber-600 px-3 py-1 text-sm font-semibold text-[#1b120b] disabled:opacity-60"
              >
                {busyId === s.id ? t('voting') : t('vote')}
              </button>
            ) : (
              <a href={s.url} target="_blank" rel="noopener noreferrer" className="text-sm text-sky-400 hover:underline">
                {t('vote')}
              </a>
            )}
          </div>
        ))}
      </div>
      {message && <p className={`mt-4 text-center ${message.ok ? 'text-green-400' : 'text-red-400'}`}>{message.text}</p>}
      {!canVote && <p className="mt-4 text-center text-sm text-amber-200/60">{t('loginToVote')}</p>}
    </>
  )
}
