Services: add toast

src/app/app.component.html

@@ -1 +1,2 @@
+<app-toast-container aria-live="polite" aria-atomic="true"/>
 <router-outlet/>

src/app/app.component.ts

@@ -1,9 +1,10 @@
 import { Component } from '@angular/core';
 import { RouterOutlet } from '@angular/router';
+import {ToastContainerComponent} from '../components/toast-container/toast-container/toast-container.component';
 
 @Component({
   selector: 'app-root',
-  imports: [RouterOutlet],
+  imports: [RouterOutlet, ToastContainerComponent],
   templateUrl: './app.component.html',
   styleUrl: './app.component.css'
 })

src/components/toast-container/toast-container/toast-container.component.css

@@ -0,0 +1,7 @@
+:host {
+  position: fixed;
+  top: 0;
+  right: 0;
+  margin: 0.5em;
+  z-index: 1200;
+}

src/components/toast-container/toast-container/toast-container.component.html

@@ -0,0 +1,7 @@
+@for (toast of toastService.toasts; track toast) {
+  <ngb-toast
+    [header]="toast.header || ''" [autohide]="true" [delay]="toast.delay || 5000"
+    (hidden)="toastService.remove(toast)"
+    [animation]="true" [class]="toast.htmlClass"
+  >{{ toast.body }}</ngb-toast>
+}

src/components/toast-container/toast-container/toast-container.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ToastContainerComponent } from './toast-container.component';
+
+describe('ToastContainerComponent', () => {
+  let component: ToastContainerComponent;
+  let fixture: ComponentFixture<ToastContainerComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      imports: [ToastContainerComponent]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(ToastContainerComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/components/toast-container/toast-container/toast-container.component.ts

@@ -0,0 +1,15 @@
+import {Component, inject} from '@angular/core';
+import {ToastService} from '../../../services/toast/toast.service';
+import {NgbToast} from '@ng-bootstrap/ng-bootstrap';
+
+@Component({
+  selector: 'app-toast-container',
+  imports: [
+    NgbToast
+  ],
+  templateUrl: './toast-container.component.html',
+  styleUrl: './toast-container.component.css'
+})
+export class ToastContainerComponent {
+  toastService: ToastService = inject(ToastService);
+}

src/interfaces/toast.ts

@@ -0,0 +1,6 @@
+export interface Toast {
+  header?: string;
+  body: string;
+  delay?: number;
+  htmlClass?: string;
+}

src/services/toast/toast.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { ToastService } from './toast.service';
+
+describe('ToastService', () => {
+  let service: ToastService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(ToastService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

src/services/toast/toast.service.ts

@@ -0,0 +1,17 @@
+import { Injectable } from '@angular/core';
+import {Toast} from '../../interfaces/toast';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class ToastService {
+  toasts: Toast[] = [];
+
+  show(toast: Toast) {
+    this.toasts.push(toast);
+  }
+
+  remove(toast: Toast) {
+    this.toasts = this.toasts.filter(t => t != toast);
+  }
+}