lens/src/common/catalog/catalog-entity-registry.ts

/**
 * Copyright (c) 2021 OpenLens Authors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

import { action, computed, IComputedValue, IObservableArray, makeObservable, observable } from "mobx";
import { CatalogEntity } from "./catalog-entity";

export class CatalogEntityRegistry {
  protected sources = observable.map<string, IComputedValue<CatalogEntity[]>>();

  constructor() {
    makeObservable(this);
  }

  @action
  addObservableSource(id: string, source: IObservableArray<CatalogEntity> | IComputedValue<CatalogEntity[]>) {
    if (Array.isArray(source)) {
      this.sources.set(id, computed(() => source.toJSON()));
    } else {
      this.sources.set(id, source);
    }
  }

  @action removeSource(id: string) {
    this.sources.delete(id);
  }

  @computed get items(): CatalogEntity[] {
    return Array.from(this.sources.values())
      .map(source => source.get())
      .flat();
  }

  getItemsForApiKind<T extends CatalogEntity>(apiVersion: string, kind: string): T[] {
    const items = this.items.filter((item) => item.apiVersion === apiVersion && item.kind === kind);

    return items as T[];
  }
}

export const catalogEntityRegistry = new CatalogEntityRegistry();