import useSWR, { mutate } from 'swr'

import { apiClient } from '@/lib/api'
import { EMPTY_SITE_PAGES, SitePagesContent } from '@/lib/site-pages'

const SITE_PAGES_KEY = '/api/site-pages'

/** Lädt die Inhalte der rechtlichen Seiten (Impressum, Datenschutz, Barrierefreiheit). */
export function useSitePages() {
  const { data, error, isLoading } = useSWR<SitePagesContent>(
    SITE_PAGES_KEY,
    () => apiClient.getSitePages(),
    {
      revalidateOnFocus: false,
      revalidateOnReconnect: true,
    }
  )

  return {
    pages: data ?? EMPTY_SITE_PAGES,
    isLoading,
    error,
    mutate: () => mutate(SITE_PAGES_KEY),
  }
}

/** Speichert die Inhalte der rechtlichen Seiten. */
export async function updateSitePages(data: SitePagesContent) {
  const saved = await apiClient.updateSitePages(data)
  mutate(SITE_PAGES_KEY)
  return saved
}