/* How many edit requests wait for an admin. The sidebar wears this number on
   the door to the review desk, so the waiting pile shows without opening it.
   Shared state rather than a ref: the sidebar draws the count, and the desk —
   which already holds every request — lays the honest number on it each time
   it loads or a request is decided. */
export function usePendingRequests() {
  const api = `${useRuntimeConfig().public.apiBase}/api`
  const { isAdmin, authHeaders } = useAuth()

  const pending = useState<number>('proposals:pending', () => 0)

  /* Ask the API how many wait. Only an admin is answered, so nobody else
     carries a count — and a request that never got through (the backend is
     restarting) leaves the last number standing rather than emptying the door. */
  async function refresh() {
    if (!isAdmin.value) {
      pending.value = 0
      return
    }
    try {
      const { pending: waiting } = await $fetch<{ pending: number }>(
        `${api}/admin/proposals/count`,
        { headers: authHeaders() }
      )
      pending.value = waiting
    } catch {
      /* keep what the door already said */
    }
  }

  /* The desk counts its own loaded pile — same fetch that brought the requests
     answers the door too, so approving or refusing keeps the number in step
     without asking the API twice. */
  function report(count: number) {
    pending.value = count
  }

  return { pending, refresh, report }
}