/**
 * @license
 * Copyright (C) 2020 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 '../test/common-test-setup-karma.js';
import {getComputedStyleValue} from '../utils/dom-util.js';
import './gr-app.js';
import {getPluginLoader} from './shared/gr-js-api-interface/gr-plugin-loader.js';
import {stubRestApi} from '../test/test-utils.js';

const basicFixture = fixtureFromElement('gr-app');

suite('gr-app custom light theme tests', () => {
  let element;
  setup(done => {
    window.localStorage.removeItem('dark-theme');
    stubRestApi('getConfig').returns(Promise.resolve({test: 'config'}));
    stubRestApi('getAccount').returns(Promise.resolve({}));
    stubRestApi('getDiffComments').returns(Promise.resolve({}));
    stubRestApi('getDiffRobotComments').returns(Promise.resolve({}));
    stubRestApi('getDiffDrafts').returns(Promise.resolve({}));
    element = basicFixture.instantiate();
    getPluginLoader().loadPlugins([]);
    getPluginLoader().awaitPluginsLoaded()
        .then(() => flush(done));
  });
  teardown(() => {
    // The app sends requests to server. This can lead to
    // unexpected gr-alert elements in document.body
    document.body.querySelectorAll('gr-alert').forEach(grAlert => {
      grAlert.remove();
    });
  });

  test('should not load dark theme', () => {
    assert.isFalse(!!document.head.querySelector('#dark-theme'));
    assert.isTrue(!!document.head.querySelector('#light-theme'));
  });

  test('applies the right theme', () => {
    assert.equal(
        getComputedStyleValue('--header-background-color', element)
            .toLowerCase(),
        '#f1f3f4');
    assert.equal(
        getComputedStyleValue('--footer-background-color', element)
            .toLowerCase(),
        'transparent');
  });
});