import type { Metadata } from 'next'
import { db } from '@/lib/db'
import { requirePermission } from '@/lib/auth/current'
import { de } from '@/lib/i18n/de'
import { RoleRow } from './RoleRow'
import { ClearancePreview } from './ClearancePreview'

export const metadata: Metadata = { title: de.roleAdmin.heading }
export const dynamic = 'force-dynamic'

const ORDER = ['MEMBERSHIP', 'CLEARANCE', 'RANK', 'UNSORTED'] as const

export default async function RoleAdminPage() {
  // Ohne roles.manage gibt es 404, nicht 403.
  await requirePermission('roles.manage')

  const [mappings, levels] = await Promise.all([
    db.roleMapping.findMany({ orderBy: [{ sortOrder: 'desc' }, { label: 'asc' }] }),
    db.clearanceLevelConfig.findMany({ orderBy: { level: 'asc' } }),
  ])

  return (
    <main className="mx-auto max-w-5xl px-6 py-10">
      <h1 className="font-condensed">{de.roleAdmin.heading}</h1>
      <p className="mt-2 max-w-(--container-measure) text-text-dim">{de.roleAdmin.intro}</p>

      {mappings.length === 0 ? (
        <p className="mt-8 text-text-dim">{de.roleAdmin.empty}</p>
      ) : (
        <>
          <ClearancePreview
            levels={levels}
            mappings={mappings.map((m) => ({
              label: m.label,
              clearanceLevel: m.clearanceLevel,
            }))}
          />

          {ORDER.map((category) => {
            const rows = mappings.filter((m) => m.category === category)
            if (rows.length === 0) return null
            return (
              <section key={category} className="mt-10">
                <h2 className="font-condensed text-text-dim">
                  {de.roleAdmin.categories[category]}
                </h2>
                <div className="mt-2 border-t border-line">
                  {rows.map((role) => (
                    <RoleRow
                      key={role.discordRoleId}
                      role={{
                        discordRoleId: role.discordRoleId,
                        label: role.label,
                        clearanceLevel: role.clearanceLevel,
                        grantsMembership: role.grantsMembership,
                        category: role.category,
                        permissions: role.permissions,
                        isPresent: role.isPresent,
                      }}
                      levels={levels.map((l) => ({ level: l.level, name: l.name }))}
                    />
                  ))}
                </div>
              </section>
            )
          })}
        </>
      )}
    </main>
  )
}