import { z } from "zod";

/** Snapshot refresh intervals offered in the UI, in milliseconds. */
export const REFRESH_OPTIONS_MS = [250, 500, 1000, 2000, 5000] as const;
export const DEFAULT_REFRESH_MS = 1000;

/** The `?refresh=` search param; anything unexpected falls back to the default. */
export const refreshMsSchema = z.coerce
  .number()
  .refine((ms) => (REFRESH_OPTIONS_MS as readonly number[]).includes(ms))
  .catch(DEFAULT_REFRESH_MS);