/**
 * Copyright 2019 Google LLC
 *
 * 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 {LiveAnnouncer} from '@angular/cdk/a11y';
import {DebugElement} from '@angular/core';
import {ComponentFixture, TestBed} from '@angular/core/testing';
import {MatChipInput} from '@angular/material/chips';
import {NoopAnimationsModule} from '@angular/platform-browser/animations';
import {ActivatedRoute, Params} from '@angular/router';
import {RouterTestingModule} from '@angular/router/testing';
import {of as observableOf, Subject} from 'rxjs';

import {APP_DATA} from '../services/app_data';
import {MttClient, TestRunActionClient} from '../services/mtt_client';
import {MttObjectMapService, newMttObjectMap} from '../services/mtt_object_map';
import {getEl} from '../testing/jasmine_util';
import {newMockTestPlan} from '../testing/mtt_mocks';

import {TestPlanEditPage} from './test_plan_edit_page';
import {TestPlansModule} from './test_plans_module';

describe('TestPlanEditPage', () => {
  const testPlan = newMockTestPlan('test_plan_id_1', 'test_plan_name_1');
  let el: DebugElement;
  let testPlanEditPage: TestPlanEditPage;
  let testPlanEditPageFixture: ComponentFixture<TestPlanEditPage>;

  let liveAnnouncer: jasmine.SpyObj<LiveAnnouncer>;
  let mttClient: jasmine.SpyObj<MttClient>;
  let routeParams: Subject<Params>;
  let mttObjectMapService: jasmine.SpyObj<MttObjectMapService>;

  beforeEach(() => {
    liveAnnouncer =
        jasmine.createSpyObj('liveAnnouncer', ['announce', 'clear']);
    mttClient = {
      ...jasmine.createSpyObj(['getNodeConfig', 'getTestPlan']),
      testRunActions:
          jasmine.createSpyObj<TestRunActionClient>({list: observableOf([])}),
    } as jasmine.SpyObj<MttClient>;
    routeParams = new Subject<Params>();

    // TODO: Wait until b/208710526 is fixed, then remove this autogenerated
    // error suppression.
    //  @ts-ignore(go/unfork-jasmine-typings): Argument of type
    //  'Observable<never[]>' is not assignable to parameter of type
    //  'Observable<NodeConfig>'.
    mttClient.getNodeConfig.and.returnValue(observableOf([]));
    mttClient.getTestPlan.and.returnValue(observableOf(testPlan));

    mttObjectMapService = jasmine.createSpyObj(['getMttObjectMap']);
    mttObjectMapService.getMttObjectMap.and.returnValue(
        observableOf(newMttObjectMap()));

    TestBed.configureTestingModule({
      imports: [
        NoopAnimationsModule,
        RouterTestingModule,
        TestPlansModule,
      ],
      providers: [
        {provide: APP_DATA, useValue: {}},
        {provide: LiveAnnouncer, useValue: liveAnnouncer},
        {provide: MttClient, useValue: mttClient},
        {provide: ActivatedRoute, useValue: {params: routeParams}},
        {provide: MttObjectMapService, useValue: mttObjectMapService},
      ],
    });

    testPlanEditPageFixture = TestBed.createComponent(TestPlanEditPage);
    testPlanEditPageFixture.detectChanges();
    el = testPlanEditPageFixture.debugElement;
    testPlanEditPage = testPlanEditPageFixture.componentInstance;
  });

  it('should get initialized correctly', () => {
    expect(testPlanEditPage).toBeTruthy();
  });

  it('should call load data correctly', () => {
    routeParams.next({'id': testPlan.id});
    expect(testPlanEditPage.editMode).toBeTruthy();
    expect(mttClient.getNodeConfig).toHaveBeenCalledTimes(1);
    expect(mttClient.getTestPlan).toHaveBeenCalledWith(testPlan.id);
    expect(mttClient.getTestPlan).toHaveBeenCalledTimes(1);
  });

  it('displays and announces a loading mask', () => {
    testPlanEditPage.loadData(testPlan.id);
    expect(liveAnnouncer.announce).toHaveBeenCalledWith('Loading', 'polite');
    expect(liveAnnouncer.announce)
        .toHaveBeenCalledWith('Test plan loaded', 'assertive');
  });

  it('should set test plan correctly', () => {
    testPlanEditPage.loadTestPlan(testPlan);
    expect(testPlanEditPage.data).toEqual(testPlan);
  });

  it('should add labels correctly', () => {
    testPlanEditPage.data.labels = [];
    const fakeInput = document.createElement('input');
    testPlanEditPage.addLabel({
      chipInput: {inputElement: fakeInput} as MatChipInput,
      value: ' label1  '
    });
    expect(testPlanEditPage.data.labels).toEqual(['label1']);
    testPlanEditPage.addLabel({
      chipInput: {inputElement: fakeInput} as MatChipInput,
      value: 'label2'
    });
    expect(testPlanEditPage.data.labels).toEqual(['label1', 'label2']);

    // Should not add duplicate label
    testPlanEditPage.addLabel({
      chipInput: {inputElement: fakeInput} as MatChipInput,
      value: ' label1  '
    });
    expect(testPlanEditPage.data.labels).toEqual(['label1', 'label2']);
  });

  it('should remove labels correctly', () => {
    testPlanEditPage.data.labels = ['label1', 'label2', 'label3'];
    testPlanEditPage.removeLabel('label2');
    expect(testPlanEditPage.data.labels).toEqual(['label1', 'label3']);
    testPlanEditPage.removeLabel('label3');
    expect(testPlanEditPage.data.labels).toEqual(['label1']);
    testPlanEditPage.removeLabel('label4');
    expect(testPlanEditPage.data.labels).toEqual(['label1']);
    testPlanEditPage.removeLabel('label1');
    expect(testPlanEditPage.data.labels).toEqual([]);
    testPlanEditPage.removeLabel('label1');
    expect(testPlanEditPage.data.labels).toEqual([]);
  });

  describe('back button', () => {
    it('should display correct aria-label and tooltip', () => {
      const backButton = getEl(el, '#back-button');
      expect(backButton).toBeTruthy();
      expect(backButton.getAttribute('aria-label'))
          .toBe('Return to test plans page');
      expect(backButton.getAttribute('mattooltip'))
          .toBe('Return to test plans page');
    });
  });
});