// Copyright 2015 Google Inc. All Rights Reserved.
//
// 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 {StateParams} from './replicasetdetail_state';
import {getReplicaSetDetailsResource} from './replicasetdetail_stateconfig';
import showUpdateReplicasDialog from './updatereplicas_dialog';

/**
 * Opens replica set delete dialog.
 *
 * @final
 */
export class ReplicaSetService {
  /**
   * @param {!md.$dialog} $mdDialog
   * @param {!angular.$resource} $resource
   * @param {!angular.$q} $q
   * @ngInject
   */
  constructor($mdDialog, $resource, $q) {
    /** @private {!md.$dialog} */
    this.mdDialog_ = $mdDialog;

    /** @private {!angular.$resource} */
    this.resource_ = $resource;

    /** @private {!angular.$q} */
    this.q_ = $q;
  }

  /**
   * Opens a replica set delete dialog. Returns a promise that is resolved/rejected when user wants
   * to delete the replica. Nothing happens when user clicks cancel on the dialog.
   *
   * @param {string} namespace
   * @param {string} replicaSet
   * @return {!angular.$q.Promise}
   */
  showDeleteDialog(namespace, replicaSet) {
    let resource =
        getReplicaSetDetailsResource(new StateParams(namespace, replicaSet), this.resource_);
    let deferred = this.q_.defer();

    this.mdDialog_
        .show(
            this.mdDialog_.confirm()
                .title('Delete Replica Set')
                .textContent(
                    `Delete replica set ${replicaSet} in namespace ${namespace}. Pods managed by ` +
                    `the replica set will be also deleted. Are you sure?`)
                .ok('Ok')
                .cancel('Cancel'))
        .then(() => { resource.remove(deferred.resolve, deferred.reject); });

    return deferred.promise;
  }

  /**
   * Opens an update replica set dialog. Returns a promise that is resolved/rejected when user wants
   * to update the replicas. Nothing happens when user clicks cancel on the dialog.
   *
   * @param {string} namespace
   * @param {string} replicaSet
   * @param {number} currentPods
   * @param {number} desiredPods
   * @returns {!angular.$q.Promise}
   */
  showUpdateReplicasDialog(namespace, replicaSet, currentPods, desiredPods) {
    return showUpdateReplicasDialog(
        this.mdDialog_, namespace, replicaSet, currentPods, desiredPods);
  }
}