import {async, ComponentFixture, TestBed} from '@angular/core/testing';
import {Item} from '../../../core/shared/item.model';
import {RouterStub} from '../../../shared/testing/router-stub';
import {CommonModule} from '@angular/common';
import {RouterTestingModule} from '@angular/router/testing';
import {TranslateModule} from '@ngx-translate/core';
import {NgbModule} from '@ng-bootstrap/ng-bootstrap';
import {ActivatedRoute, Router} from '@angular/router';
import {ItemMoveComponent} from './item-move.component';
import {NotificationsServiceStub} from '../../../shared/testing/notifications-service-stub';
import {NotificationsService} from '../../../shared/notifications/notifications.service';
import {SearchService} from '../../../+search-page/search-service/search.service';
import {of as observableOf} from 'rxjs';
import {FormsModule} from '@angular/forms';
import {ItemDataService} from '../../../core/data/item-data.service';
import {RemoteData} from '../../../core/data/remote-data';
import {PaginatedList} from '../../../core/data/paginated-list';
import {CUSTOM_ELEMENTS_SCHEMA} from '@angular/core';
import { RestResponse } from '../../../core/cache/response.models';

describe('ItemMoveComponent', () => {
  let comp: ItemMoveComponent;
  let fixture: ComponentFixture<ItemMoveComponent>;

  const mockItem = Object.assign(new Item(), {
    id: 'fake-id',
    handle: 'fake/handle',
    lastModified: '2018'
  });

  const itemPageUrl = `fake-url/${mockItem.id}`;
  const routerStub = Object.assign(new RouterStub(), {
    url: `${itemPageUrl}/edit`
  });

  const mockItemDataService = jasmine.createSpyObj({
    moveToCollection: observableOf(new RestResponse(true, 200, 'Success'))
  });

  const mockItemDataServiceFail = jasmine.createSpyObj({
    moveToCollection: observableOf(new RestResponse(false, 500, 'Internal server error'))
  });

  const routeStub = {
    data: observableOf({
      item: new RemoteData(false, false, true, null, {
        id: 'item1'
      })
    })
  };

  const mockSearchService = {
    search: () => {
      return observableOf(new RemoteData(false, false, true, null,
        new PaginatedList(null, [
          {
            dspaceObject: {
              name: 'Test collection 1',
              uuid: 'collection1'
            }, hitHighlights: {}
          }, {
            dspaceObject: {
              name: 'Test collection 2',
              uuid: 'collection2'
            }, hitHighlights: {}
          }
        ])));
    }
  };

  const notificationsServiceStub = new NotificationsServiceStub();

  describe('ItemMoveComponent success', () => {
    beforeEach(async(() => {
      TestBed.configureTestingModule({
        imports: [CommonModule, FormsModule, RouterTestingModule.withRoutes([]), TranslateModule.forRoot(), NgbModule.forRoot()],
        declarations: [ItemMoveComponent],
        providers: [
          {provide: ActivatedRoute, useValue: routeStub},
          {provide: Router, useValue: routerStub},
          {provide: ItemDataService, useValue: mockItemDataService},
          {provide: NotificationsService, useValue: notificationsServiceStub},
          {provide: SearchService, useValue: mockSearchService},
        ], schemas: [
          CUSTOM_ELEMENTS_SCHEMA
        ]
      }).compileComponents();
    }));

    beforeEach(() => {
      fixture = TestBed.createComponent(ItemMoveComponent);
      comp = fixture.componentInstance;
      fixture.detectChanges();
    });
    it('should load suggestions', () => {
      const expected = [
        {
          displayValue: 'Test collection 1',
          value: {
            name: 'Test collection 1',
            id: 'collection1',
          }
        },
        {
          displayValue: 'Test collection 2',
          value: {
            name: 'Test collection 2',
            id: 'collection2',
          }
        }
      ];

      comp.collectionSearchResults.subscribe((value) => {
          expect(value).toEqual(expected);
        }
      );
    });
    it('should get current url ', () => {
      expect(comp.getCurrentUrl()).toEqual('fake-url/fake-id/edit');
    });
    it('should on click select the correct collection name and id', () => {
      const data = {
        name: 'Test collection 1',
        id: 'collection1',
      };
      comp.onClick(data);

      expect(comp.selectedCollection).toEqual('Test collection 1');
      expect(comp.selectedCollectionId).toEqual('collection1');
    });
    describe('moveCollection', () => {
      it('should call itemDataService.moveToCollection', () => {
        comp.itemId = 'item-id';
        comp.selectedCollectionId = 'selected-collection-id';
        comp.moveCollection();

        expect(mockItemDataService.moveToCollection).toHaveBeenCalledWith('item-id', 'selected-collection-id');
      });
      it('should call notificationsService success message on success', () => {
        // spyOn(notificationsServiceStub, 'success');

        comp.moveCollection();

        expect(notificationsServiceStub.success).toHaveBeenCalled();
      });
    });
  });

  describe('ItemMoveComponent fail', () => {
    beforeEach(async(() => {
      TestBed.configureTestingModule({
        imports: [CommonModule, FormsModule, RouterTestingModule.withRoutes([]), TranslateModule.forRoot(), NgbModule.forRoot()],
        declarations: [ItemMoveComponent],
        providers: [
          {provide: ActivatedRoute, useValue: routeStub},
          {provide: Router, useValue: routerStub},
          {provide: ItemDataService, useValue: mockItemDataServiceFail},
          {provide: NotificationsService, useValue: notificationsServiceStub},
          {provide: SearchService, useValue: mockSearchService},
        ], schemas: [
          CUSTOM_ELEMENTS_SCHEMA
        ]
      }).compileComponents();
    }));

    beforeEach(() => {
      fixture = TestBed.createComponent(ItemMoveComponent);
      comp = fixture.componentInstance;
      fixture.detectChanges();
    });

    it('should call notificationsService error message on fail', () => {
      // spyOn(notificationsServiceStub, 'error');

      comp.moveCollection();

      expect(notificationsServiceStub.error).toHaveBeenCalled();
    });
  });
});