'use client'

import { useState } from 'react'
import { useTranslations } from 'next-intl'
import type { GoldOption } from '@/lib/admin-gold'

export function AdminGoldManager({ initial }: { initial: GoldOption[] }) {
  const t = useTranslations('Admin')
  const [opts, setOpts] = useState(initial)
  const [form, setForm] = useState({ goldAmount: '', price: '' })
  const [busy, setBusy] = useState(false)

  function upd(k: string, v: string) {
    setForm((f) => ({ ...f, [k]: v }))
  }

  async function create(e: React.FormEvent) {
    e.preventDefault()
    const goldAmount = Number(form.goldAmount)
    const price = Number(form.price)
    if (busy || !(goldAmount > 0) || !(price >= 0)) return
    setBusy(true)
    try {
      const res = await fetch('/api/admin/gold', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        credentials: 'same-origin',
        body: JSON.stringify({ goldAmount, price }),
      })
      const data: { success?: boolean; id?: number } = await res.json()
      if (data.success && data.id) {
        setOpts(
          [...opts, { id: data.id, gold_amount: goldAmount, price }].sort((a, b) => a.gold_amount - b.gold_amount),
        )
        setForm({ goldAmount: '', price: '' })
      }
    } finally {
      setBusy(false)
    }
  }

  async function remove(id: number) {
    if (!confirm(t('confirmDelete'))) return
    const res = await fetch(`/api/admin/gold/${id}`, { method: 'DELETE', credentials: 'same-origin' })
    if ((await res.json()).success) setOpts(opts.filter((o) => o.id !== id))
  }

  const field = 'nw-input'
  return (
    <div>
      <form onSubmit={create} className="mb-8 grid gap-3 nw-card sm:grid-cols-[1fr_1fr_auto] sm:items-end">
        <label className="text-sm">
          <span className="mb-1 block text-nw-muted">{t('goldAmount')}</span>
          <input type="number" min="1" value={form.goldAmount} onChange={(e) => upd('goldAmount', e.target.value)} placeholder="10000" className={field} />
        </label>
        <label className="text-sm">
          <span className="mb-1 block text-nw-muted">{t('goldPrice')}</span>
          <input type="number" min="0" step="0.01" value={form.price} onChange={(e) => upd('price', e.target.value)} placeholder="4.99" className={field} />
        </label>
        <button type="submit" disabled={busy} className="nw-btn disabled:opacity-60">
          {busy ? t('creating') : t('create')}
        </button>
      </form>
      {opts.length === 0 ? (
        <p className="text-amber-200/70">{t('noGold')}</p>
      ) : (
        <ul className="divide-y divide-amber-900/40">
          {opts.map((o) => (
            <li key={o.id} className="flex items-center justify-between gap-4 py-3">
              <div>
                <p className="font-semibold text-amber-300">{o.gold_amount.toLocaleString()} {t('goldUnit')}</p>
                <p className="text-xs text-amber-200/50">{o.price.toFixed(2)} €</p>
              </div>
              <button onClick={() => remove(o.id)} className="rounded border border-red-900/60 px-3 py-1 text-sm text-red-400 hover:bg-red-950/40">
                {t('delete')}
              </button>
            </li>
          ))}
        </ul>
      )}
    </div>
  )
}
