/**
 * 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 type { Cluster } from "../../main/cluster";
import { namespaceStore } from "./+namespaces/namespace.store";
import type { ClusterContext } from "../../common/k8s-api/cluster-context";
import { computed, makeObservable } from "mobx";

export class FrameContext implements ClusterContext {
  constructor(public cluster: Cluster) {
    makeObservable(this);
  }

  @computed get allNamespaces(): string[] {
    // user given list of namespaces
    if (this.cluster.accessibleNamespaces.length) {
      return this.cluster.accessibleNamespaces;
    }

    if (namespaceStore.items.length > 0) {
      // namespaces from kubernetes api
      return namespaceStore.items.map((namespace) => namespace.getName());
    } else {
      // fallback to cluster resolved namespaces because we could not load list
      return this.cluster.allowedNamespaces || [];
    }
  }

  @computed get contextNamespaces(): string[] {
    return namespaceStore.contextNamespaces;
  }

  @computed get hasSelectedAll(): boolean {
    const namespaces = new Set(this.contextNamespaces);

    return this.allNamespaces?.length > 1
      && this.cluster.accessibleNamespaces.length === 0
      && this.allNamespaces.every(ns => namespaces.has(ns));
  }
}