import { union, reduce } from 'lodash/fp';

const commonPlus = extra => union(['onBegin', 'onComplete', 'onError'])(extra);

const common = () => commonPlus([]);

const _events = {
  recordApi: {
    save: commonPlus([
      'onInvalid',
      'onRecordUpdated',
      'onRecordCreated']),
    delete: common(),
    getContext: common(),
    getNew: common(),
    load: common(),
    validate: common(),
    uploadFile: common(),
    downloadFile: common(),
  },
  indexApi: {
    buildIndex: common(),
    listItems: common(),
    delete: common(),
    aggregates: common(),
  },
  collectionApi: {
    getAllowedRecordTypes: common(),
    initialise: common(),
    delete: common(),
  },
  authApi: {
    authenticate: common(),
    authenticateTemporaryAccess: common(),
    createTemporaryAccess: common(),
    createUser: common(),
    enableUser: common(),
    disableUser: common(),
    loadAccessLevels: common(),
    getNewAccessLevel: common(),
    getNewUser: common(),
    getNewUserAuth: common(),
    getUsers: common(),
    saveAccessLevels: common(),
    isAuthorized: common(),
    changeMyPassword: common(),
    setPasswordFromTemporaryCode: common(),
    scorePassword: common(),
    isValidPassword: common(),
    validateUser: common(),
    validateAccessLevels: common(),
    setUserAccessLevels: common(),
  },
  templateApi: {
    saveApplicationHierarchy: common(),
    saveActionsAndTriggers: common(),
  },
  actionsApi: {
    execute: common(),
  },
};

const _eventsList = [];

const makeEvent = (area, method, name) => `${area}:${method}:${name}`;

for (const areaKey in _events) {
  for (const methodKey in _events[areaKey]) {
    _events[areaKey][methodKey] = reduce((obj, s) => {
      obj[s] = makeEvent(areaKey, methodKey, s);
      return obj;
    },
    {})(_events[areaKey][methodKey]);
  }
}


for (const areaKey in _events) {
  for (const methodKey in _events[areaKey]) {
    for (const name in _events[areaKey][methodKey]) {
      _eventsList.push(
        _events[areaKey][methodKey][name],
      );
    }
  }
}


export const events = _events;

export const eventsList = _eventsList;

export default { events: _events, eventsList: _eventsList };