/**
 * @license
 * Copyright (C) 2018 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 '@polymer/iron-input/iron-input';
import '../../../styles/gr-form-styles';
import '../../../styles/shared-styles';
import '../../shared/gr-rest-api-interface/gr-rest-api-interface';
import '../../shared/gr-select/gr-select';
import {GestureEventListeners} from '@polymer/polymer/lib/mixins/gesture-event-listeners';
import {LegacyElementMixin} from '@polymer/polymer/lib/legacy/legacy-element-mixin';
import {PolymerElement} from '@polymer/polymer/polymer-element';
import {htmlTemplate} from './gr-edit-preferences_html';
import {customElement, property} from '@polymer/decorators';
import {RestApiService} from '../../../services/services/gr-rest-api/gr-rest-api';
import {EditPreferencesInfo} from '../../../types/common';

export interface GrEditPreferences {
  $: {
    restAPI: RestApiService & Element;
    editSyntaxHighlighting: HTMLInputElement;
    showAutoCloseBrackets: HTMLInputElement;
    showIndentWithTabs: HTMLInputElement;
    showMatchBrackets: HTMLInputElement;
    editShowLineWrapping: HTMLInputElement;
    editShowTabs: HTMLInputElement;
    editShowTrailingWhitespaceInput: HTMLInputElement;
  };
}
@customElement('gr-edit-preferences')
export class GrEditPreferences extends GestureEventListeners(
  LegacyElementMixin(PolymerElement)
) {
  static get template() {
    return htmlTemplate;
  }

  @property({type: Boolean, notify: true})
  hasUnsavedChanges = false;

  @property({type: Object})
  editPrefs?: EditPreferencesInfo;

  loadData() {
    return this.$.restAPI.getEditPreferences().then(prefs => {
      this.editPrefs = prefs;
    });
  }

  _handleEditPrefsChanged() {
    this.hasUnsavedChanges = true;
  }

  _handleEditSyntaxHighlightingChanged() {
    this.set(
      'editPrefs.syntax_highlighting',
      this.$.editSyntaxHighlighting.checked
    );
    this._handleEditPrefsChanged();
  }

  _handleEditShowTabsChanged() {
    this.set('editPrefs.show_tabs', this.$.editShowTabs.checked);
    this._handleEditPrefsChanged();
  }

  _handleEditShowTrailingWhitespaceTap() {
    this.set(
      'editPrefs.show_whitespace_errors',
      this.$.editShowTrailingWhitespaceInput.checked
    );
    this._handleEditPrefsChanged();
  }

  _handleMatchBracketsChanged() {
    this.set('editPrefs.match_brackets', this.$.showMatchBrackets.checked);
    this._handleEditPrefsChanged();
  }

  _handleEditLineWrappingChanged() {
    this.set('editPrefs.line_wrapping', this.$.editShowLineWrapping.checked);
    this._handleEditPrefsChanged();
  }

  _handleIndentWithTabsChanged() {
    this.set('editPrefs.indent_with_tabs', this.$.showIndentWithTabs.checked);
    this._handleEditPrefsChanged();
  }

  _handleAutoCloseBracketsChanged() {
    this.set(
      'editPrefs.auto_close_brackets',
      this.$.showAutoCloseBrackets.checked
    );
    this._handleEditPrefsChanged();
  }

  save() {
    if (!this.editPrefs)
      return Promise.reject(new Error('Missing edit preferences'));
    return this.$.restAPI.saveEditPreferences(this.editPrefs).then(() => {
      this.hasUnsavedChanges = false;
    });
  }
}

declare global {
  interface HTMLElementTagNameMap {
    'gr-edit-preferences': GrEditPreferences;
  }
}