// Copyright 2021 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import type * as Platform from '../../core/platform/platform.js';
import {describeWithEnvironment} from '../../testing/EnvironmentHelpers.js';

import * as UI from './legacy.js';

describe('View', () => {
  describeWithEnvironment('TabbedViewLocation', () => {
    let tabbedLocation: UI.View.TabbedViewLocation;
    let viewManager: UI.ViewManager.ViewManager;
    before(async () => {
      ['first', 'second', 'third', 'fourth'].forEach(title => {
        UI.ViewManager.registerViewExtension({
          // @ts-ignore
          location: 'mock-location',
          id: title as Lowercase<string>,
          title: () => title as Platform.UIString.LocalizedString,
          commandPrompt: () => title as Platform.UIString.LocalizedString,
          persistence: UI.ViewManager.ViewPersistence.CLOSEABLE,
          async loadView() {
            return new UI.Widget.Widget();
          },
        });
      });
      viewManager = UI.ViewManager.ViewManager.instance({forceNew: true});
      tabbedLocation = viewManager.createTabbedLocation(undefined, 'mock-location', true, true);
    });

    it('Creates an empty tabbed location', () => {
      assert.deepEqual(tabbedLocation.tabbedPane().tabIds(), []);
    });

    it('Adds a tab for a selected view', () => {
      void viewManager.showView('first');
      void viewManager.showView('second');
      void viewManager.showView('third');

      assert.deepEqual(tabbedLocation.tabbedPane().tabIds(), ['first', 'second', 'third']);
    });

    it('Prepends a tab correctly', () => {
      const thirdTab = tabbedLocation.tabbedPane().tabsById.get('third');
      if (!thirdTab) {
        throw new Error('Could not find a tab');
      }
      tabbedLocation.tabbedPane().insertBefore(thirdTab, 0);
      assert.deepEqual(tabbedLocation.tabbedPane().tabIds(), ['third', 'first', 'second']);
    });

    it('Appends a tab correctly', () => {
      void viewManager.showView('fourth');
      assert.deepEqual(tabbedLocation.tabbedPane().tabIds(), ['third', 'first', 'second', 'fourth']);
    });

    it('Closes a tab correctly', () => {
      tabbedLocation.tabbedPane().closeTab('second');
      assert.deepEqual(tabbedLocation.tabbedPane().tabIds(), ['third', 'first', 'fourth']);
    });
  });
});