/*****************************************************************************
 * Open MCT, Copyright (c) 2014-2023, United States Government
 * as represented by the Administrator of the National Aeronautics and Space
 * Administration. All rights reserved.
 *
 * Open MCT is 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.
 *
 * Open MCT includes source code licensed under additional open source
 * licenses. See the Open Source Licenses file (LICENSES.md) included with
 * this source code distribution or the Licensing information page available
 * at runtime from the About dialog for additional information.
 *****************************************************************************/

import * as testUtils from 'utils/testing';

import plugins from './plugins/plugins';

describe('MCT', function () {
  let openmct;
  let mockPlugin;
  let mockPlugin2;
  let mockListener;

  beforeEach(function () {
    mockPlugin = jasmine.createSpy('plugin');
    mockPlugin2 = jasmine.createSpy('plugin2');
    mockListener = jasmine.createSpy('listener');

    openmct = testUtils.createOpenMct();

    openmct.install(mockPlugin);
    openmct.install(mockPlugin2);
    openmct.on('start', mockListener);
  });

  // Clean up the dirty singleton.
  afterEach(function () {
    return testUtils.resetApplicationState(openmct);
  });

  it('exposes plugins', function () {
    expect(openmct.plugins).toEqual(plugins);
  });

  it('does not issue a start event before started', function () {
    expect(mockListener).not.toHaveBeenCalled();
  });

  describe('start', function () {
    let appHolder;
    beforeEach(function (done) {
      appHolder = document.createElement('div');
      openmct.on('start', done);
      openmct.start(appHolder);
    });

    it('calls plugins for configuration', function () {
      expect(mockPlugin).toHaveBeenCalledWith(openmct);
      expect(mockPlugin2).toHaveBeenCalledWith(openmct);
    });

    it('emits a start event', function () {
      expect(mockListener).toHaveBeenCalled();
    });

    it('Renders the application into the provided container element', function () {
      let openMctShellElements = appHolder.querySelectorAll('div.l-shell');
      expect(openMctShellElements.length).toBe(1);
    });
  });

  describe('startHeadless', function () {
    beforeEach(function (done) {
      openmct.on('start', done);
      openmct.startHeadless();
    });

    it('calls plugins for configuration', function () {
      expect(mockPlugin).toHaveBeenCalledWith(openmct);
      expect(mockPlugin2).toHaveBeenCalledWith(openmct);
    });

    it('emits a start event', function () {
      expect(mockListener).toHaveBeenCalled();
    });

    it('Does not render Open MCT', function () {
      let openMctShellElements = document.body.querySelectorAll('div.l-shell');
      expect(openMctShellElements.length).toBe(0);
    });
  });

  describe('setAssetPath', function () {
    let testAssetPath;

    it('configures the path for assets', function () {
      testAssetPath = 'some/path/';
      openmct.setAssetPath(testAssetPath);
      expect(openmct.getAssetPath()).toBe(testAssetPath);
    });

    it('adds a trailing /', function () {
      testAssetPath = 'some/path';
      openmct.setAssetPath(testAssetPath);
      expect(openmct.getAssetPath()).toBe(testAssetPath + '/');
    });
  });
});