import { prisma } from '@innungsapp/shared'
import { auth, getSanitizedHeaders } from '@/lib/auth'
import { headers } from 'next/headers'
import { redirect } from 'next/navigation'
import Link from 'next/link'
import { NEWS_KATEGORIE_LABELS } from '@innungsapp/shared'
import { format } from 'date-fns'
import { de } from 'date-fns/locale'

const KATEGORIE_COLORS: Record<string, string> = {
  Wichtig: 'bg-red-100 text-red-700',
  Pruefung: 'bg-blue-100 text-blue-700',
  Foerderung: 'bg-green-100 text-green-700',
  Veranstaltung: 'bg-purple-100 text-purple-700',
  Allgemein: 'bg-gray-100 text-gray-700',
}

export default async function NewsPage() {
  const sanitizedHeaders = await getSanitizedHeaders()
  const session = await auth.api.getSession({ headers: sanitizedHeaders })
  if (!session?.user) redirect('/login')
  const userRole = await prisma.userRole.findFirst({
    where: { userId: session.user.id, role: 'admin' },
  })
  if (!userRole) redirect('/dashboard')

  const news = await prisma.news.findMany({
    where: { orgId: userRole.orgId },
    include: { author: { select: { name: true } } },
    orderBy: [{ publishedAt: 'desc' }, { createdAt: 'desc' }],
  })

  const published = news.filter((n: typeof news[number]) => n.publishedAt)
  const drafts = news.filter((n: typeof news[number]) => !n.publishedAt)

  return (
    <div className="space-y-6">
      <div className="flex items-center justify-between">
        <div>
          <h1 className="text-2xl font-bold text-gray-900">News</h1>
          <p className="text-gray-500 mt-1">{published.length} publiziert · {drafts.length} Entwürfe</p>
        </div>
        <Link
          href="/dashboard/news/neu"
          className="bg-brand-500 text-white px-4 py-2 rounded-lg text-sm font-medium hover:bg-brand-600 transition-colors"
        >
          + Beitrag erstellen
        </Link>
      </div>

      {drafts.length > 0 && (
        <section>
          <h2 className="text-sm font-semibold text-gray-500 uppercase tracking-wide mb-3">
            Entwürfe
          </h2>
          <div className="bg-white rounded-lg border overflow-hidden">
            <table className="w-full data-table">
              <tbody>
                {drafts.map((n: typeof drafts[number]) => (
                  <tr key={n.id}>
                    <td className="w-full">
                      <p className="font-medium text-gray-900">{n.title}</p>
                      <p className="text-xs text-gray-400">Erstellt {format(n.createdAt, 'dd. MMM yyyy', { locale: de })}</p>
                    </td>
                    <td>
                      <span className={`px-2 py-0.5 rounded-full text-xs font-medium ${KATEGORIE_COLORS[n.kategorie]}`}>
                        {NEWS_KATEGORIE_LABELS[n.kategorie]}
                      </span>
                    </td>
                    <td>
                      <Link href={`/dashboard/news/${n.id}`} className="text-sm text-brand-600 hover:underline">
                        Bearbeiten
                      </Link>
                    </td>
                  </tr>
                ))}
              </tbody>
            </table>
          </div>
        </section>
      )}

      <section>
        <h2 className="text-sm font-semibold text-gray-500 uppercase tracking-wide mb-3">
          Publiziert
        </h2>
        <div className="bg-white rounded-lg border overflow-hidden">
          <table className="w-full data-table">
            <thead>
              <tr>
                <th>Titel</th>
                <th>Kategorie</th>
                <th>Autor</th>
                <th>Datum</th>
                <th></th>
              </tr>
            </thead>
            <tbody>
              {published.map((n: typeof published[number]) => (
                <tr key={n.id}>
                  <td className="font-medium text-gray-900">{n.title}</td>
                  <td>
                    <span className={`px-2 py-0.5 rounded-full text-xs font-medium ${KATEGORIE_COLORS[n.kategorie]}`}>
                      {NEWS_KATEGORIE_LABELS[n.kategorie]}
                    </span>
                  </td>
                  <td className="text-gray-500">{n.author?.name ?? '—'}</td>
                  <td className="text-gray-500">
                    {n.publishedAt ? format(n.publishedAt, 'dd.MM.yyyy', { locale: de }) : '—'}
                  </td>
                  <td>
                    <Link href={`/dashboard/news/${n.id}`} className="text-sm text-brand-600 hover:underline">
                      Bearbeiten
                    </Link>
                  </td>
                </tr>
              ))}
            </tbody>
          </table>
        </div>
      </section>
    </div>
  )
}
