/*!
 * @license
 * Copyright 2019 Alfresco Software, Ltd.
 *
 * 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 { ComponentFixture, TestBed } from '@angular/core/testing';
import { RatingComponent } from './rating.component';
import { setupTestBed } from '../../core/testing';
import { ContentTestingModule } from '../testing/content.testing.module';
import { of } from 'rxjs';
import { RatingService } from './services/rating.service';

describe('Rating component', () => {

    let component: any;
    let fixture: ComponentFixture<RatingComponent>;
    let element: HTMLElement;
    let service: RatingService;

    setupTestBed({
        imports: [ContentTestingModule]
    });

    beforeEach(() => {
        fixture = TestBed.createComponent(RatingComponent);
        service = TestBed.get(RatingService);

        element = fixture.nativeElement;
        component = fixture.componentInstance;
        component.nodeId = 'test-id';

        fixture.detectChanges();
    });

    afterEach(() => {
        fixture.destroy();
    });

    describe('Rendering tests', () => {

        it('should rating component should be present', (done) => {
            spyOn(service, 'getRating').and.returnValue(of({
                entry: {
                    id: 'fiveStar',
                    aggregate: {
                        numberOfRatings: 1,
                        average: 4
                    }
                }
            }));

            component.ngOnChanges();

            fixture.detectChanges();

            expect(element.querySelector('#adf-rating-container')).not.toBe(null);
            done();
        });

        it('should the star rating filled with the right grey/colored star', (done) => {
            spyOn(service, 'getRating').and.returnValue(of({
                'entry': {
                    myRating: 3,
                    'ratedAt': '2017-04-06T14:34:28.061+0000',
                    'id': 'fiveStar',
                    'aggregate': {'numberOfRatings': 1, 'average': 3.0}
                }
            }));

            component.ngOnChanges();

            fixture.detectChanges();

            expect(element.querySelectorAll('.adf-colored-star').length).toBe(3);
            expect(element.querySelectorAll('.adf-grey-star').length).toBe(2);
            done();
        });
    });

    it('should click on a star to change your vote', (done) => {
        spyOn(service, 'getRating').and.returnValue(of({
            'entry': {
                myRating: 1,
                'ratedAt': '2017-04-06T14:34:28.061+0000',
                'id': 'fiveStar',
                'aggregate': {'numberOfRatings': 1, 'average': 1.0}
            }
        }));

        const rateSpy = spyOn(service, 'postRating').and.returnValue(of({
            'entry': {
                'myRating': 3,
                'ratedAt': '2017-04-06T14:36:40.731+0000',
                'id': 'fiveStar',
                'aggregate': {'numberOfRatings': 1, 'average': 3.0}
            }
        }));

        component.ngOnChanges();
        fixture.detectChanges();

        expect(element.querySelectorAll('.adf-colored-star').length).toBe(1);

        component.changeVote.subscribe(() => {
            fixture.detectChanges();
            expect(rateSpy).toHaveBeenCalled();
            expect(element.querySelectorAll('.adf-colored-star').length).toBe(3);

            done();
        });

        const starThree: any = element.querySelector('#adf-grey-star-2');
        starThree.click();
    });

    it('should click on the rated star to remove your vote', () => {
        spyOn(service, 'getRating').and.returnValue(of({
            'entry': {
                myRating: 3,
                'ratedAt': '2017-04-06T14:34:28.061+0000',
                'id': 'fiveStar',
                'aggregate': {'numberOfRatings': 1, 'average': 3.0}
            }
        }));

        const deleteSpy = spyOn(service, 'deleteRating');

        component.ngOnChanges();
        fixture.detectChanges();
        const starThree: any = element.querySelector('#adf-colored-star-2');
        starThree.click();
        expect(element.querySelectorAll('.adf-colored-star').length).toBe(3);
        expect(deleteSpy).toHaveBeenCalled();
    });
});