/*!
 * @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 { Component, DebugElement } from '@angular/core';
import { ComponentFixture, TestBed } from '@angular/core/testing';
import { By } from '@angular/platform-browser';
import { AlfrescoApiService } from '../services/alfresco-api.service';
import { NodeRestoreDirective } from './node-restore.directive';
import { setupTestBed } from '../testing/setupTestBed';
import { CoreModule } from '../core.module';
import { AlfrescoApiServiceMock } from '../mock/alfresco-api.service.mock';
import { NoopAnimationsModule } from '@angular/platform-browser/animations';
import { TranslationService } from '../services/translation.service';

@Component({
    template: `
        <div [adf-restore]="selection"
             (restore)="doneSpy()">
        </div>`
})
class TestComponent {
    selection = [];

    doneSpy = jasmine.createSpy('doneSpy');
}

describe('NodeRestoreDirective', () => {
    let fixture: ComponentFixture<TestComponent>;
    let element: DebugElement;
    let component: TestComponent;
    let alfrescoService: AlfrescoApiService;
    let nodesService;
    let coreApi;
    let directiveInstance;
    let restoreNodeSpy: any;
    let translationService: TranslationService;

    setupTestBed({
        imports: [
            CoreModule.forRoot(),
            NoopAnimationsModule
        ],
        declarations: [
            TestComponent
        ],
        providers: [
            { provide: AlfrescoApiService, useClass: AlfrescoApiServiceMock }
        ]
    });

    beforeEach(() => {
        fixture = TestBed.createComponent(TestComponent);
        component = fixture.componentInstance;
        element = fixture.debugElement.query(By.directive(NodeRestoreDirective));
        directiveInstance = element.injector.get(NodeRestoreDirective);

        alfrescoService = TestBed.get(AlfrescoApiService);
        nodesService = alfrescoService.getInstance().nodes;
        coreApi = alfrescoService.getInstance().core;

        restoreNodeSpy = spyOn(nodesService, 'restoreNode').and.returnValue(Promise.resolve());
        spyOn(coreApi.nodesApi, 'getDeletedNodes').and.returnValue(Promise.resolve({
            list: { entries: [] }
        }));

        translationService = TestBed.get(TranslationService);
        spyOn(translationService, 'instant').and.callFake((key) => { return key; });
    });

    it('should not restore when selection is empty', () => {
        component.selection = [];

        fixture.detectChanges();
        element.triggerEventHandler('click', null);

        expect(nodesService.restoreNode).not.toHaveBeenCalled();
    });

    it('should not restore nodes when selection has nodes without path', (done) => {
        component.selection = [{ entry: { id: '1' } }];

        fixture.detectChanges();
        fixture.whenStable().then(() => {
            element.triggerEventHandler('click', null);

            expect(nodesService.restoreNode).not.toHaveBeenCalled();
            done();
        });
    });

    it('should call restore when selection has nodes with path', (done) => {
        component.selection = [{ entry: { id: '1', path: ['somewhere-over-the-rainbow'] } }];

        fixture.detectChanges();
        element.triggerEventHandler('click', null);
        fixture.whenStable().then(() => {
            expect(nodesService.restoreNode).toHaveBeenCalled();
            done();
        });
    });

    describe('reset', () => {
        it('should reset selection', (done) => {
            component.selection = [{ entry: { id: '1', path: ['somewhere-over-the-rainbow'] } }];

            directiveInstance.restore.subscribe(() => {
                expect(directiveInstance.selection.length).toBe(0);
                done();
            });

            fixture.detectChanges();

            fixture.whenStable().then(() => {
                expect(directiveInstance.selection.length).toBe(1);
                element.triggerEventHandler('click', null);
            });
        });

        it('should reset status', () => {
            directiveInstance.restoreProcessStatus.fail = [{}];
            directiveInstance.restoreProcessStatus.success = [{}];

            directiveInstance.restoreProcessStatus.reset();

            expect(directiveInstance.restoreProcessStatus.fail).toEqual([]);
            expect(directiveInstance.restoreProcessStatus.success).toEqual([]);
        });

        it('should emit event on finish', (done) => {
            spyOn(element.nativeElement, 'dispatchEvent');

            directiveInstance.restore.subscribe(() => {
                expect(component.doneSpy).toHaveBeenCalled();
                done();
            });

            component.selection = [{ entry: { id: '1', path: ['somewhere-over-the-rainbow'] } }];

            fixture.detectChanges();
            element.triggerEventHandler('click', null);
        });
    });

    describe('notification', () => {

        it('should notify on multiple fails', (done) => {
            const error = { message: '{ "error": {} }' };

            directiveInstance.restore.subscribe((event) => {
                expect(event.message).toEqual('CORE.RESTORE_NODE.PARTIAL_PLURAL');
                done();
            });

            restoreNodeSpy.and.callFake((id) => {
                if (id === '1') {
                    return Promise.resolve();
                }

                if (id === '2') {
                    return Promise.reject(error);
                }

                if (id === '3') {
                    return Promise.reject(error);
                }
            });

            component.selection = [
                { entry: { id: '1', name: 'name1', path: ['somewhere-over-the-rainbow'] } },
                { entry: { id: '2', name: 'name2', path: ['somewhere-over-the-rainbow'] } },
                { entry: { id: '3', name: 'name3', path: ['somewhere-over-the-rainbow'] } }
            ];

            fixture.detectChanges();
            element.triggerEventHandler('click', null);
        });

        it('should notify fail when restored node exist, error 409', (done) => {
            const error = { message: '{ "error": { "statusCode": 409 } }' };

            directiveInstance.restore.subscribe((event) => {
                expect(event.message).toEqual('CORE.RESTORE_NODE.NODE_EXISTS');

                done();
            });

            restoreNodeSpy.and.returnValue(Promise.reject(error));

            component.selection = [
                { entry: { id: '1', name: 'name1', path: ['somewhere-over-the-rainbow'] } }
            ];

            fixture.detectChanges();
            element.triggerEventHandler('click', null);
        });

        it('should notify fail when restored node returns different statusCode', (done) => {
            const error = { message: '{ "error": { "statusCode": 404 } }' };

            restoreNodeSpy.and.returnValue(Promise.reject(error));

            directiveInstance.restore.subscribe((event) => {
                expect(event.message).toEqual('CORE.RESTORE_NODE.GENERIC');

                done();
            });

            component.selection = [
                { entry: { id: '1', name: 'name1', path: ['somewhere-over-the-rainbow'] } }
            ];

            fixture.detectChanges();
            element.triggerEventHandler('click', null);
        });

        it('should notify fail when restored node location is missing', (done) => {
            const error = { message: '{ "error": { } }' };

            restoreNodeSpy.and.returnValue(Promise.reject(error));

            directiveInstance.restore.subscribe((event) => {
                expect(event.message).toEqual('CORE.RESTORE_NODE.LOCATION_MISSING');
                done();
            });

            component.selection = [
                { entry: { id: '1', name: 'name1', path: ['somewhere-over-the-rainbow'] } }
            ];

            fixture.detectChanges();
            element.triggerEventHandler('click', null);
        });

        it('should notify success when restore multiple nodes', (done) => {

            directiveInstance.restore.subscribe((event) => {
                expect(event.message).toEqual('CORE.RESTORE_NODE.PLURAL');

                done();
            });

            restoreNodeSpy.and.callFake((id) => {
                if (id === '1') {
                    return Promise.resolve();
                }

                if (id === '2') {
                    return Promise.resolve();
                }
            });

            component.selection = [
                { entry: { id: '1', name: 'name1', path: ['somewhere-over-the-rainbow'] } },
                { entry: { id: '2', name: 'name2', path: ['somewhere-over-the-rainbow'] } }
            ];

            fixture.detectChanges();
            element.triggerEventHandler('click', null);

        });

        it('should notify success on restore selected node', (done) => {
            directiveInstance.restore.subscribe((event) => {
                expect(event.message).toEqual('CORE.RESTORE_NODE.SINGULAR');

                done();
            });

            component.selection = [
                { entry: { id: '1', name: 'name1', path: ['somewhere-over-the-rainbow'] } }
            ];

            fixture.detectChanges();
            element.triggerEventHandler('click', null);

        });

    });
});