/**

 * 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 {DOMEventName} from './DOMEventNames';

import {enableCreateEventHandleAPI} from 'shared/ReactFeatureFlags';

export const allNativeEvents: Set<DOMEventName> = new Set();

if (enableCreateEventHandleAPI) {

  allNativeEvents.add('beforeblur');

  allNativeEvents.add('afterblur');

}

/**

 * Mapping from registration name to event name

 */

export const registrationNameDependencies: {

  [registrationName: string]: Array<DOMEventName>,

} = {};

/**

 * Mapping from lowercase registration names to the properly cased version,

 * used to warn in the case of missing event handlers. Available

 * only in __DEV__.

 * @type {Object}

 */

export const possibleRegistrationNames: {

  [lowerCasedName: string]: string,

} = __DEV__ ? {} : (null: any);

// Trust the developer to only use possibleRegistrationNames in __DEV__

export function registerTwoPhaseEvent(

  registrationName: string,

  dependencies: Array<DOMEventName>,

): void {

  registerDirectEvent(registrationName, dependencies);

  registerDirectEvent(registrationName + 'Capture', dependencies);

}

export function registerDirectEvent(

  registrationName: string,

  dependencies: Array<DOMEventName>,

) {

  if (__DEV__) {

    if (registrationNameDependencies[registrationName]) {

      console.error(

        'EventRegistry: More than one plugin attempted to publish the same ' +

          'registration name, `%s`.',

        registrationName,

      );

    }

  }

  registrationNameDependencies[registrationName] = dependencies;

  if (__DEV__) {

    const lowerCasedName = registrationName.toLowerCase();

    possibleRegistrationNames[lowerCasedName] = registrationName;

    if (registrationName === 'onDoubleClick') {

      possibleRegistrationNames.ondblclick = registrationName;

    }

  }

  for (let i = 0; i < dependencies.length; i++) {

    allNativeEvents.add(dependencies[i]);

  }

}