stadtwerke/innungsapp/apps/admin/app/providers.tsx

'use client'

import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
import { httpBatchLink } from '@trpc/client'
import { useState } from 'react'
import superjson from 'superjson'
import { trpc } from '@/lib/trpc-client'

function getBaseUrl() {
  if (typeof window !== 'undefined') return ''
  if (process.env.NEXT_PUBLIC_APP_URL) return process.env.NEXT_PUBLIC_APP_URL
  return 'http://localhost:3000'
}

export function Providers({ children }: { children: React.ReactNode }) {
  const [queryClient] = useState(
    () =>
      new QueryClient({
        defaultOptions: {
          queries: {
            staleTime: 30 * 1000,
            retry: 1,
          },
        },
      })
  )

  const [trpcClient] = useState(() =>
    trpc.createClient({
      links: [
        httpBatchLink({
          url: `${getBaseUrl()}/api/trpc`,
          transformer: superjson,
        }),
      ],
    })
  )

  return (
    <trpc.Provider client={trpcClient} queryClient={queryClient}>
      <QueryClientProvider client={queryClient}>{children}</QueryClientProvider>
    </trpc.Provider>
  )
}