import { async, ComponentFixture, TestBed } from '@angular/core/testing';
import { HttpClientTestingModule } from '@angular/common/http/testing';
import { inject } from '@angular/core/testing';

import { mock, instance, capture, when, anything } from 'ts-mockito';
import { HotkeyModule, HotkeysService, Hotkey } from 'angular2-hotkeys';
import { of } from 'rxjs';

import { ProjectMapShortcutsComponent } from './project-map-shortcuts.component';
import { ToasterService } from '../../../services/toaster.service';
import { NodeService } from '../../../services/node.service';
import { HttpServer } from '../../../services/http-server.service';
import { SelectionManager } from '../../../cartography/managers/selection-manager';
import { Server } from '../../../models/server';
import { Project } from '../../../models/project';
import { ProjectService } from '../../../services/project.service';
import { MockedProjectService } from '../../../services/project.service.spec';
import { SettingsService } from '../../../services/settings.service';
import { MockedToasterService } from '../../../services/toaster.service.spec';
import { mapTo } from 'rxjs/internal/operators';
import { MapNodeToNodeConverter } from '../../../cartography/converters/map/map-node-to-node-converter';
import { MapNode } from '../../../cartography/models/map/map-node';
import { MapLabelToLabelConverter } from '../../../cartography/converters/map/map-label-to-label-converter';
import { MapPortToPortConverter } from '../../../cartography/converters/map/map-port-to-port-converter';
import { Node } from '../../../cartography/models/node';
import { FontBBoxCalculator } from '../../../cartography/helpers/font-bbox-calculator';
import { CssFixer } from '../../../cartography/helpers/css-fixer';
import { FontFixer } from '../../../cartography/helpers/font-fixer';

describe('ProjectMapShortcutsComponent', () => {
  let component: ProjectMapShortcutsComponent;
  let fixture: ComponentFixture<ProjectMapShortcutsComponent>;
  let hotkeyServiceMock: HotkeysService;
  let hotkeyServiceInstanceMock: HotkeysService;
  let nodeServiceMock: NodeService;
  let node: MapNode;

  beforeEach(async(() => {
    node = new MapNode();
    const selectionManagerMock = mock(SelectionManager);
    when(selectionManagerMock.getSelected()).thenReturn([node]);

    nodeServiceMock = mock(NodeService);
    hotkeyServiceMock = mock(HotkeysService);
    hotkeyServiceInstanceMock = instance(hotkeyServiceMock);
    TestBed.configureTestingModule({
      imports: [HotkeyModule.forRoot(), HttpClientTestingModule],
      providers: [
        HttpServer,
        { provide: NodeService, useFactory: () => instance(nodeServiceMock) },
        { provide: HotkeysService, useFactory: () => hotkeyServiceInstanceMock },
        { provide: ToasterService, useClass: MockedToasterService },
        { provide: ProjectService, useClass: MockedProjectService },
        { provide: SelectionManager, useValue: instance(selectionManagerMock) },
        SettingsService,
        MapNodeToNodeConverter,
        MapLabelToLabelConverter,
        MapPortToPortConverter,
        MapLabelToLabelConverter,
        FontBBoxCalculator,
        CssFixer,
        FontFixer
      ],
      declarations: [ProjectMapShortcutsComponent]
    }).compileComponents();
  }));

  beforeEach(() => {
    fixture = TestBed.createComponent(ProjectMapShortcutsComponent);
    component = fixture.componentInstance;
    fixture.detectChanges();
  });

  it('should create', () => {
    expect(component).toBeTruthy();
  });

  it('should bind delete key', () => {
    component.ngOnInit();
    const [hotkey] = capture(hotkeyServiceMock.add).last();
    expect((hotkey as Hotkey).combo).toEqual(['del']);
    expect((hotkey as Hotkey).callback).toBeDefined();
  });

  it('should remove binding', () => {
    component.ngOnDestroy();
    const [hotkey] = capture(hotkeyServiceMock.remove).last();
    expect((hotkey as Hotkey).combo).toEqual(['del']);
  });

  describe('onDeleteHandler', () => {
    beforeEach(() => {
      const server = new Server();
      const project = new Project();

      when(nodeServiceMock.delete(server, anything())).thenReturn(of(new Node()).pipe(mapTo(null)));

      component.project = project;
      component.server = server;
    });

    it('should handle delete', inject([ToasterService], (toaster: MockedToasterService) => {
      component.project.readonly = false;
      component.onDeleteHandler(null);
      expect(toaster.successes).toEqual(['Node has been deleted']);
    }));

    it('should not delete when project in readonly mode', inject([ToasterService], (toaster: MockedToasterService) => {
      component.project.readonly = true;
      component.onDeleteHandler(null);
      expect(toaster.successes).toEqual([]);
    }));
  });
});