/**
 * @license
 * Copyright (C) 2016 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.
 */
(function() {
  'use strict';

  /** @extends Polymer.Element */
  class GrDiffPreferences extends Polymer.GestureEventListeners(
      Polymer.LegacyElementMixin(
          Polymer.Element)) {
    static get is() { return 'gr-diff-preferences'; }

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

        /** @type {?} */
        diffPrefs: Object,
      };
    }

    loadData() {
      return this.$.restAPI.getDiffPreferences().then(prefs => {
        this.diffPrefs = prefs;
      });
    }

    _handleDiffPrefsChanged() {
      this.hasUnsavedChanges = true;
    }

    _handleLineWrappingTap() {
      this.set('diffPrefs.line_wrapping', this.$.lineWrappingInput.checked);
      this._handleDiffPrefsChanged();
    }

    _handleShowTabsTap() {
      this.set('diffPrefs.show_tabs', this.$.showTabsInput.checked);
      this._handleDiffPrefsChanged();
    }

    _handleShowTrailingWhitespaceTap() {
      this.set('diffPrefs.show_whitespace_errors',
          this.$.showTrailingWhitespaceInput.checked);
      this._handleDiffPrefsChanged();
    }

    _handleSyntaxHighlightTap() {
      this.set('diffPrefs.syntax_highlighting',
          this.$.syntaxHighlightInput.checked);
      this._handleDiffPrefsChanged();
    }

    _handleAutomaticReviewTap() {
      this.set('diffPrefs.manual_review',
          !this.$.automaticReviewInput.checked);
      this._handleDiffPrefsChanged();
    }

    save() {
      return this.$.restAPI.saveDiffPreferences(this.diffPrefs).then(res => {
        this.hasUnsavedChanges = false;
      });
    }
  }

  customElements.define(GrDiffPreferences.is, GrDiffPreferences);
})();