/*
 * Copyright 2020 Spotify AB
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { UserEntity } from '@backstage/catalog-model';
import { identityApiRef, useApi } from '@backstage/core';
import { catalogApiRef } from '@backstage/plugin-catalog-react';
import { useAsync } from 'react-use';
import { AsyncState } from 'react-use/lib/useAsync';

/**
 * Get the catalog User entity (if any) that matches the logged-in user.
 */
export function useOwnUser(): AsyncState<UserEntity | undefined> {
  const catalogApi = useApi(catalogApiRef);
  const identityApi = useApi(identityApiRef);

  // TODO: get the full entity (or at least the full entity name) from the
  // identityApi
  return useAsync(
    () =>
      catalogApi.getEntityByName({
        kind: 'User',
        namespace: 'default',
        name: identityApi.getUserId(),
      }) as Promise<UserEntity | undefined>,
    [catalogApi, identityApi],
  );
}
