/*!
 * @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 { CUSTOM_ELEMENTS_SCHEMA, SimpleChange } from '@angular/core';
import { async, ComponentFixture, TestBed } from '@angular/core/testing';
import { By } from '@angular/platform-browser';
import { setupTestBed } from '@alfresco/adf-core';
import { fakeNodeWithCreatePermission } from '../mock';
import { DocumentListComponent } from '../document-list';
import { DropdownBreadcrumbComponent } from './dropdown-breadcrumb.component';
import { ContentTestingModule } from '../testing/content.testing.module';

describe('DropdownBreadcrumb', () => {

    let component: DropdownBreadcrumbComponent;
    let fixture: ComponentFixture<DropdownBreadcrumbComponent>;
    let documentList: DocumentListComponent;

    setupTestBed({
        imports: [ContentTestingModule],
        schemas: [CUSTOM_ELEMENTS_SCHEMA]
    });

    beforeEach(async(() => {
        fixture = TestBed.createComponent(DropdownBreadcrumbComponent);
        component = fixture.componentInstance;
        documentList = TestBed.createComponent<DocumentListComponent>(DocumentListComponent).componentInstance;
    }));

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

    function openSelect() {
        const folderIcon = fixture.debugElement.nativeElement.querySelector('[data-automation-id="dropdown-breadcrumb-trigger"]');
        folderIcon.click();
        fixture.detectChanges();
    }

    function triggerComponentChange(fakeNodeData) {
        const change = new SimpleChange(null, fakeNodeData, true);
        component.ngOnChanges({ 'folderNode': change });
        fixture.detectChanges();
    }

    function clickOnTheFirstOption() {
        const option: any = document.querySelector('[id^="mat-option"]');
        option.click();
    }

    it('should display only the current folder name if there is no previous folders', (done) => {
        fakeNodeWithCreatePermission.path.elements = [];

        triggerComponentChange(fakeNodeWithCreatePermission);

        fixture.whenStable().then(() => {

            openSelect();

            const currentFolder = fixture.debugElement.query(By.css('[data-automation-id="current-folder"]'));
            const path = fixture.debugElement.query(By.css('[data-automation-id="dropdown-breadcrumb-path"]'));
            expect(path).toBeNull();
            expect(currentFolder).not.toBeNull();
            expect(currentFolder.nativeElement.innerText.trim()).toEqual('Test');

            done();
        });
    });

    it('should display only the path in the selectbox', (done) => {
        fakeNodeWithCreatePermission.path.elements = [
            { id: '1', name: 'Stark Industries' },
            { id: '2', name: 'User Homes' },
            { id: '3', name: 'J.A.R.V.I.S' }
        ];

        triggerComponentChange(fakeNodeWithCreatePermission);

        fixture.whenStable().then(() => {

            openSelect();

            const path = fixture.debugElement.query(By.css('[data-automation-id="dropdown-breadcrumb-path"]'));
            const options = fixture.debugElement.queryAll(By.css('[data-automation-class="dropdown-breadcrumb-path-option"]'));
            expect(path).not.toBeNull();
            expect(options.length).toBe(3);
            done();
        });
    });

    it('should display the path in reverse order', (done) => {
        fakeNodeWithCreatePermission.path.elements = [
            { id: '1', name: 'Stark Industries' },
            { id: '2', name: 'User Homes' },
            { id: '3', name: 'J.A.R.V.I.S' }
        ];

        triggerComponentChange(fakeNodeWithCreatePermission);

        fixture.whenStable().then(() => {

            openSelect();

            fixture.whenStable().then(() => {
                const options = fixture.debugElement.queryAll(By.css('[data-automation-class="dropdown-breadcrumb-path-option"]'));
                expect(options.length).toBe(3);
                expect(options[0].nativeElement.innerText.trim()).toBe('J.A.R.V.I.S');
                expect(options[1].nativeElement.innerText.trim()).toBe('User Homes');
                expect(options[2].nativeElement.innerText.trim()).toBe('Stark Industries');
                done();
            });
        });
    });

    it('should emit navigation event when clicking on an option', (done) => {
        fakeNodeWithCreatePermission.path.elements = [{ id: '1', name: 'Stark Industries' }];

        triggerComponentChange(fakeNodeWithCreatePermission);

        fixture.whenStable().then(() => {

            openSelect();

            fixture.whenStable().then(() => {
                component.navigate.subscribe(val => {
                    expect(val).toEqual({ id: '1', name: 'Stark Industries' });
                    done();
                });

                clickOnTheFirstOption();
            });
        });
    });

    it('should update document list  when clicking on an option', (done) => {
        spyOn(documentList, 'loadFolderByNodeId').and.stub();
        component.target = documentList;
        fakeNodeWithCreatePermission.path.elements = [{ id: '1', name: 'Stark Industries' }];
        triggerComponentChange(fakeNodeWithCreatePermission);

        fixture.whenStable().then(() => {
            openSelect();
            fixture.whenStable().then(() => {

                clickOnTheFirstOption();

                expect(documentList.loadFolderByNodeId).toHaveBeenCalledWith('1');
                done();
            });
        });
    });

    it('should open the selectbox when clicking on the folder icon', (done) => {
        triggerComponentChange(fakeNodeWithCreatePermission);
        spyOn(component.dropdown, 'open');

        fixture.whenStable().then(() => {

            openSelect();

            fixture.whenStable().then(() => {

                expect(component.dropdown.open).toHaveBeenCalled();
                done();
            });
        });
    });
});