// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import type * as Common from '../../core/common/common.js';
import * as UI from '../../ui/legacy/legacy.js';

export class SimpleApp implements Common.App.App {
  presentUI(document: Document): void {
    const rootView = new UI.RootView.RootView();
    UI.InspectorView.InspectorView.instance().show(rootView.element);
    rootView.attachToDocument(document);
    rootView.focus();
  }
}

let simpleAppProviderInstance: SimpleAppProvider;

export class SimpleAppProvider implements Common.AppProvider.AppProvider {
  static instance(opts: {
    forceNew: boolean|null,
  } = {forceNew: null}): SimpleAppProvider {
    const {forceNew} = opts;
    if (!simpleAppProviderInstance || forceNew) {
      simpleAppProviderInstance = new SimpleAppProvider();
    }

    return simpleAppProviderInstance;
  }

  createApp(): Common.App.App {
    return new SimpleApp();
  }
}