/**
 * @license
 * Copyright (C) 2017 The Android Open Source Project
 *
 * 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 '../../../scripts/bundled-polymer.js';

import '../../../behaviors/gr-url-encoding-behavior/gr-url-encoding-behavior.js';
import '@polymer/iron-input/iron-input.js';
import '../../../styles/gr-form-styles.js';
import '../../../styles/shared-styles.js';
import '../../shared/gr-autocomplete/gr-autocomplete.js';
import '../../shared/gr-button/gr-button.js';
import '../../shared/gr-rest-api-interface/gr-rest-api-interface.js';
import '../../shared/gr-select/gr-select.js';
import {mixinBehaviors} from '@polymer/polymer/lib/legacy/class.js';
import {GestureEventListeners} from '@polymer/polymer/lib/mixins/gesture-event-listeners.js';
import {LegacyElementMixin} from '@polymer/polymer/lib/legacy/legacy-element-mixin.js';
import {PolymerElement} from '@polymer/polymer/polymer-element.js';
import {htmlTemplate} from './gr-create-repo-dialog_html.js';
import {BaseUrlBehavior} from '../../../behaviors/base-url-behavior/base-url-behavior.js';

/**
 * @appliesMixin Gerrit.URLEncodingMixin
 * @extends Polymer.Element
 */
class GrCreateRepoDialog extends mixinBehaviors( [
  BaseUrlBehavior,
  Gerrit.URLEncodingBehavior,
], GestureEventListeners(
    LegacyElementMixin(
        PolymerElement))) {
  static get template() { return htmlTemplate; }

  static get is() { return 'gr-create-repo-dialog'; }

  static get properties() {
    return {
      params: Object,
      hasNewRepoName: {
        type: Boolean,
        notify: true,
        value: false,
      },

      /** @type {?} */
      _repoConfig: {
        type: Object,
        value: () => {
        // Set default values for dropdowns.
          return {
            create_empty_commit: true,
            permissions_only: false,
          };
        },
      },
      _repoCreated: {
        type: Boolean,
        value: false,
      },
      _repoOwner: String,
      _repoOwnerId: {
        type: String,
        observer: '_repoOwnerIdUpdate',
      },

      _query: {
        type: Function,
        value() {
          return this._getRepoSuggestions.bind(this);
        },
      },
      _queryGroups: {
        type: Function,
        value() {
          return this._getGroupSuggestions.bind(this);
        },
      },
    };
  }

  static get observers() {
    return [
      '_updateRepoName(_repoConfig.name)',
    ];
  }

  _computeRepoUrl(repoName) {
    return this.getBaseUrl() + '/admin/repos/' +
        this.encodeURL(repoName, true);
  }

  _updateRepoName(name) {
    this.hasNewRepoName = !!name;
  }

  _repoOwnerIdUpdate(id) {
    if (id) {
      this.set('_repoConfig.owners', [id]);
    } else {
      this.set('_repoConfig.owners', undefined);
    }
  }

  handleCreateRepo() {
    return this.$.restAPI.createRepo(this._repoConfig)
        .then(repoRegistered => {
          if (repoRegistered.status === 201) {
            this._repoCreated = true;
            page.show(this._computeRepoUrl(this._repoConfig.name));
          }
        });
  }

  _getRepoSuggestions(input) {
    return this.$.restAPI.getSuggestedProjects(input)
        .then(response => {
          const repos = [];
          for (const key in response) {
            if (!response.hasOwnProperty(key)) { continue; }
            repos.push({
              name: key,
              value: response[key],
            });
          }
          return repos;
        });
  }

  _getGroupSuggestions(input) {
    return this.$.restAPI.getSuggestedGroups(input)
        .then(response => {
          const groups = [];
          for (const key in response) {
            if (!response.hasOwnProperty(key)) { continue; }
            groups.push({
              name: key,
              value: decodeURIComponent(response[key].id),
            });
          }
          return groups;
        });
  }
}

customElements.define(GrCreateRepoDialog.is, GrCreateRepoDialog);