/**

 * Copyright (c) Meta Platforms, Inc. and affiliates.

 *

 * This source code is licensed under the MIT license found in the

 * LICENSE file in the root directory of this source tree.

 *

 * @flow

 */

import type {CacheDispatcher} from './ReactInternalTypes';

import type {Cache} from './ReactFiberCacheComponent';

import {enableCache} from 'shared/ReactFeatureFlags';

import {readContext} from './ReactFiberNewContext';

import {CacheContext} from './ReactFiberCacheComponent';

function getCacheSignal(): AbortSignal {

  if (!enableCache) {

    throw new Error('Not implemented.');

  }

  const cache: Cache = readContext(CacheContext);

  return cache.controller.signal;

}

function getCacheForType<T>(resourceType: () => T): T {

  if (!enableCache) {

    throw new Error('Not implemented.');

  }

  const cache: Cache = readContext(CacheContext);

  let cacheForType: T | void = (cache.data.get(resourceType): any);

  if (cacheForType === undefined) {

    cacheForType = resourceType();

    cache.data.set(resourceType, cacheForType);

  }

  return cacheForType;

}

export const DefaultCacheDispatcher: CacheDispatcher = {

  getCacheSignal,

  getCacheForType,

};