4 files changed, 167 insertions, 0 deletions
diff --git a/Timeline/ClientApp/src/app/user/user-dialog/user-dialog.component.css b/Timeline/ClientApp/src/app/user/user-dialog/user-dialog.component.css
new file mode 100644
index 00000000..a443e3c0
--- /dev/null
+++ b/Timeline/ClientApp/src/app/user/user-dialog/user-dialog.component.css
@@ -0,0 +1,5 @@
+.container {
+  display: flex;
+  justify-content: center;
+  align-content: center;
+}
diff --git a/Timeline/ClientApp/src/app/user/user-dialog/user-dialog.component.html b/Timeline/ClientApp/src/app/user/user-dialog/user-dialog.component.html
new file mode 100644
index 00000000..50d6ba56
--- /dev/null
+++ b/Timeline/ClientApp/src/app/user/user-dialog/user-dialog.component.html
@@ -0,0 +1,5 @@
+<div [ngSwitch]="state" class="container">
+  <mat-progress-spinner *ngSwitchCase="'loading'" mode="indeterminate" diameter="50"></mat-progress-spinner>
+  <app-user-login *ngSwitchCase="'login'" (login)="login($event)" [message]="loginMessage"></app-user-login>
+  <app-user-login-success *ngSwitchCase="'success'" [userInfo]="userInfo" [displayLoginSuccessMessage]="displayLoginSuccessMessage"></app-user-login-success>
+</div>
diff --git a/Timeline/ClientApp/src/app/user/user-dialog/user-dialog.component.spec.ts b/Timeline/ClientApp/src/app/user/user-dialog/user-dialog.component.spec.ts
new file mode 100644
index 00000000..d24c0cd2
--- /dev/null
+++ b/Timeline/ClientApp/src/app/user/user-dialog/user-dialog.component.spec.ts
@@ -0,0 +1,114 @@
+import { Component, Output, EventEmitter } from '@angular/core';
+import { async, ComponentFixture, TestBed, fakeAsync, tick } from '@angular/core/testing';
+import { By } from '@angular/platform-browser';
+import { of } from 'rxjs';
+import { delay } from 'rxjs/operators';
+
+import { UserInfo } from '../user-info';
+import { UserDialogComponent } from './user-dialog.component';
+import { UserService, UserLoginState } from '../user-service/user.service';
+import { LoginEvent } from '../user-login/user-login.component';
+
+@Component({
+  /* tslint:disable-next-line:component-selector*/
+  selector: 'mat-progress-spinner',
+  template: ''
+})
+class MatProgressSpinnerStubComponent { }
+
+@Component({
+  selector: 'app-user-login',
+  /* tslint:disable-next-line:use-input-property-decorator*/
+  inputs: ['message'],
+  template: ''
+})
+class UserLoginStubComponent {
+  @Output()
+  login = new EventEmitter<LoginEvent>();
+}
+
+@Component({
+  selector: 'app-user-login-success',
+  /* tslint:disable-next-line:use-input-property-decorator*/
+  inputs: ['userInfo', 'displayLoginSuccessMessage'],
+  template: ''
+})
+class UserLoginSuccessStubComponent { }
+
+describe('UserDialogComponent', () => {
+  let component: UserDialogComponent;
+  let fixture: ComponentFixture<UserDialogComponent>;
+  let mockUserService: jasmine.SpyObj<UserService>;
+
+  beforeEach(async(() => {
+    mockUserService = jasmine.createSpyObj('UserService', ['validateUserLoginState', 'tryLogin']);
+
+    TestBed.configureTestingModule({
+      declarations: [UserDialogComponent, MatProgressSpinnerStubComponent,
+        UserLoginStubComponent, UserLoginSuccessStubComponent],
+      providers: [{ provide: UserService, useValue: mockUserService }]
+    })
+      .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(UserDialogComponent);
+    component = fixture.componentInstance;
+  });
+
+  it('progress spinner should work well', fakeAsync(() => {
+    mockUserService.validateUserLoginState.and.returnValue(of(<UserLoginState>{ state: 'nologin' }).pipe(delay(10)));
+    fixture.detectChanges();
+    expect(fixture.debugElement.query(By.css('mat-progress-spinner'))).toBeTruthy();
+    tick(10);
+    fixture.detectChanges();
+    expect(fixture.debugElement.query(By.css('mat-progress-spinner'))).toBeFalsy();
+  }));
+
+  it('nologin should work well', () => {
+    mockUserService.validateUserLoginState.and.returnValue(of(<UserLoginState>{ state: 'nologin' }));
+
+    fixture.detectChanges();
+
+    expect(mockUserService.validateUserLoginState).toHaveBeenCalled();
+    expect(fixture.debugElement.query(By.css('app-user-login'))).toBeTruthy();
+    expect(fixture.debugElement.query(By.css('app-user-login-success'))).toBeFalsy();
+  });
+
+  it('success should work well', () => {
+    mockUserService.validateUserLoginState.and.returnValue(of(<UserLoginState>{ state: 'success', userInfo: {} }));
+
+    fixture.detectChanges();
+
+    expect(mockUserService.validateUserLoginState).toHaveBeenCalled();
+    expect(fixture.debugElement.query(By.css('app-user-login'))).toBeFalsy();
+    expect(fixture.debugElement.query(By.css('app-user-login-success'))).toBeTruthy();
+  });
+
+  it('login should work well', () => {
+    mockUserService.validateUserLoginState.and.returnValue(of(<UserLoginState>{ state: 'nologin' }));
+
+    fixture.detectChanges();
+    expect(mockUserService.validateUserLoginState).toHaveBeenCalled();
+    expect(fixture.debugElement.query(By.css('app-user-login'))).toBeTruthy();
+    expect(fixture.debugElement.query(By.css('app-user-login-success'))).toBeFalsy();
+
+    mockUserService.tryLogin.withArgs('user', 'user').and.returnValue(of(<UserInfo>{
+      username: 'user',
+      roles: ['user']
+    }));
+
+    (fixture.debugElement.query(By.css('app-user-login')).componentInstance as
+      UserLoginStubComponent).login.emit(<LoginEvent>{
+        username: 'user',
+        password: 'user'
+      });
+
+    fixture.detectChanges();
+
+    expect(mockUserService.tryLogin).toHaveBeenCalledWith('user', 'user');
+
+    expect(fixture.debugElement.query(By.css('app-user-login'))).toBeFalsy();
+    expect(fixture.debugElement.query(By.css('app-user-login-success'))).toBeTruthy();
+  });
+});
diff --git a/Timeline/ClientApp/src/app/user/user-dialog/user-dialog.component.ts b/Timeline/ClientApp/src/app/user/user-dialog/user-dialog.component.ts
new file mode 100644
index 00000000..7511de16
--- /dev/null
+++ b/Timeline/ClientApp/src/app/user/user-dialog/user-dialog.component.ts
@@ -0,0 +1,43 @@
+import { Component, OnInit } from '@angular/core';
+import { UserInfo } from '../user-info';
+import { UserService } from '../user-service/user.service';
+import { LoginEvent, LoginMessage } from '../user-login/user-login.component';
+
+@Component({
+  selector: 'app-user-dialog',
+  templateUrl: './user-dialog.component.html',
+  styleUrls: ['./user-dialog.component.css']
+})
+export class UserDialogComponent implements OnInit {
+
+  constructor(private userService: UserService) { }
+
+  state: 'loading' | 'login' | 'success' = 'loading';
+
+  loginMessage: LoginMessage;
+
+  displayLoginSuccessMessage = false;
+  userInfo: UserInfo;
+
+  ngOnInit() {
+    this.userService.validateUserLoginState().subscribe(result => {
+      if (result.state === 'success') {
+        this.userInfo = result.userInfo;
+        this.state = 'success';
+      } else {
+        this.loginMessage = result.state;
+        this.state = 'login';
+      }
+    });
+  }
+
+  login(event: LoginEvent) {
+    this.userService.tryLogin(event.username, event.password).subscribe(result => {
+      this.userInfo = result;
+      this.displayLoginSuccessMessage = true;
+      this.state = 'success';
+    }, (error: Error) => {
+      this.loginMessage = error.message;
+    });
+  }
+}