/*!
 * @license
 * Copyright 2016 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 { TaskStandaloneComponent } from './task-standalone.component';
import { async, ComponentFixture, TestBed } from '@angular/core/testing';
import {
    MatButtonModule,
    MatCardModule
} from '@angular/material';

describe('TaskStandaloneComponent', () => {
    let component: TaskStandaloneComponent;
    let fixture: ComponentFixture<TaskStandaloneComponent>;
    let element: HTMLElement;

    beforeEach(async(() => {
        TestBed.configureTestingModule({
            declarations: [
                TaskStandaloneComponent
            ],
            imports: [
                MatButtonModule,
                MatCardModule
            ]
        }).compileComponents().then(() => {
            fixture = TestBed.createComponent(TaskStandaloneComponent);
            component = fixture.componentInstance;
            element = fixture.nativeElement;
            fixture.detectChanges();
        });
    }));

    it('should show Completed message if isCompleted is true', async(() => {
        component.isCompleted = true;
        fixture.detectChanges();
        const completedFormElement = fixture.debugElement.nativeElement.querySelector('#adf-completed-form-message');
        const completedFormSubElement = fixture.debugElement.nativeElement.querySelector('.adf-no-form-submessage');
        fixture.whenStable().then(() => {
            fixture.detectChanges();
            expect(element.querySelector('#adf-no-form-message')).toBeNull();
            expect(completedFormElement).toBeDefined();
            expect(completedFormElement.innerText.trim()).toBe('ADF_TASK_LIST.STANDALONE_TASK.COMPLETE_TASK_MESSAGE');
            expect(completedFormSubElement).toBeDefined();
            expect(completedFormSubElement.innerText).toBe('ADF_TASK_LIST.STANDALONE_TASK.COMPLETE_TASK_SUB_MESSAGE');
            expect(element.querySelector('.adf-no-form-mat-card-actions')).toBeDefined();
        });
    }));

    it('should show No form message if isCompleted is false', async(() => {
        component.isCompleted = false;
        fixture.detectChanges();
        const noformElement = fixture.debugElement.nativeElement.querySelector('#adf-no-form-message');
        fixture.whenStable().then(() => {
            expect(noformElement).toBeDefined();
            expect(noformElement.innerText).toBe('ADF_TASK_LIST.STANDALONE_TASK.NO_FORM_MESSAGE');
            expect(element.querySelector('#adf-completed-form-message')).toBeNull();
            expect(element.querySelector('.adf-no-form-submessage')).toBeNull();
        });
    }));

    it('should hide Cancel button by default', async(() => {
        fixture.detectChanges();
        fixture.whenStable().then(() => {
        expect(element.querySelector('#adf-no-form-cancel-button')).toBeNull();
        });
    }));

    it('should emit cancel event if clicked on Cancel Button ', async(() => {
        component.hideCancelButton = false;
        component.isCompleted = false;
        fixture.detectChanges();
        fixture.whenStable().then(() => {
            const emitSpy = spyOn(component.cancel, 'emit');
            const el = fixture.nativeElement.querySelector('#adf-no-form-cancel-button');
            el.click();
            expect(emitSpy).toHaveBeenCalled();
        });
    }));

    it('should hide Cancel button if hideCancelButton is true', async(() => {
        component.hideCancelButton = true;
        fixture.detectChanges();
        fixture.whenStable().then(() => {
            expect(element.querySelector('#adf-no-form-cancel-button')).toBeNull();
        });
    }));

    it('should hide Cancel button if isCompleted is true', async(() => {
        component.isCompleted = true;
        fixture.detectChanges();
        fixture.whenStable().then(() => {
            expect(element.querySelector('#adf-no-form-cancel-button')).toBeNull();
        });
    }));

    it('should emit complete event if clicked on Complete Button', async(() => {
        component.hasCompletePermission = true;
        component.isCompleted = false;
        fixture.detectChanges();
        fixture.whenStable().then(() => {
            const emitSpy = spyOn(component.complete, 'emit');
            expect(element.querySelector('#adf-no-form-complete-button')).toBeDefined();
            const el = fixture.nativeElement.querySelector('#adf-no-form-complete-button');
            el.click();
            expect(emitSpy).toHaveBeenCalled();
        });
    }));

    it('should hide Complete button if isCompleted is true', async(() => {
        component.isCompleted = true;
        fixture.detectChanges();
        fixture.whenStable().then(() => {
            expect(element.querySelector('#adf-no-form-complete-button')).toBeNull();
        });
    }));

    it('should hide Complete button if hasCompletePermission is false', async(() => {
        component.hasCompletePermission = false;
        fixture.detectChanges();
        fixture.whenStable().then(() => {
            expect(element.querySelector('#adf-no-form-complete-button')).toBeNull();
        });
    }));
});