import { getActiveClient } from '~/client/api/activeClient';

/**
 * ```js
 * import { enableCache } from '@amityco/ts-sdk'
 * enableCache()
 * ```
 *
 * Adds a new {@link Amity.Cache} object to
 * an {@link Amity.Client} instance
 *
 * @param prevState a previous state of cache instance (useful for SSR)
 * @param persistIf a function to determine if an entry inserted in cache
 * is destined to be also saved in the persistent storage when
 * calling {@link backupCache}
 *
 * @category Cache API
 */
export const enableCache = (
  prevState: Amity.Cache['data'] = {},
  persistIf?: Amity.Cache['persistIf'],
) => {
  const client = getActiveClient();

  if (client.cache) return;
  client.log('cache/api/enableCache');

  client.cache = { data: prevState, persistIf };
};