updated service alert

angular.json

@@ -1,6 +1,6 @@
 {
   "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
-  "version": 1,
+  "version": 2.0,
   "newProjectRoot": "projects",
   "projects": {
     "lms-app-new": {

src/app/app.component.ts

@@ -1,5 +1,5 @@
 import { Component } from '@angular/core';
-
+import { UpdateService } from './services/update.service';
 
 @Component({
 	selector: 'app-root',
@@ -7,9 +7,11 @@ import { Component } from '@angular/core';
 	styleUrls: ['./app.component.scss']
 })
 export class AppComponent {
-    constructor() {
+    constructor(
+        private updateService: UpdateService,
+    ) {
         if (!localStorage.demoType) {
-            localStorage.demoType = 'Teacher';
+            localStorage.demoType = 'Student';
         }
     }
 }

src/app/app.module.ts

@@ -11,6 +11,7 @@ import { DragDropModule } from '@angular/cdk/drag-drop';
 
 // Import services
 import { DemoService } from './services/demo.service';
+import { UpdateService } from './services/update.service';
 
 // Component imports
 import { AppComponent } from './app.component';
@@ -85,7 +86,8 @@ import { QuestionComponent } from './tabs/courses/test/question-sheet/question/q
 		ServiceWorkerModule.register('ngsw-worker.js', { enabled: environment.production })
 	],
 	providers: [
-        DemoService
+        DemoService,
+        UpdateService
     ],
 	bootstrap: [AppComponent]
 })

src/app/services/update.service.spec.ts

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

src/app/services/update.service.ts

@@ -0,0 +1,29 @@
+import { Injectable } from '@angular/core';
+import { SwUpdate } from '@angular/service-worker';
+
+@Injectable({
+    providedIn: 'root'
+})
+export class UpdateService {
+
+    constructor(private swUpdate: SwUpdate) {
+        if (!this.swUpdate.isEnabled) {
+            console.log('Nope SW');
+        } else {
+            this.swUpdate.checkForUpdate().then((ev) => {
+                console.log(ev);
+            }, (err) => {
+                console.log(err);
+            });
+        }
+
+        this.swUpdate.available.subscribe((evt: any) => {
+            this.presentToastWithOptions('Update Available');
+        });
+    }
+
+    public async presentToastWithOptions(message: string) {
+        alert('New Update');
+        location.reload();
+	}
+}

src/app/welcome/welcome.component.ts

@@ -14,7 +14,7 @@ export class WelcomeComponent implements OnInit {
         private demoService: DemoService
     ) { }
 
-	ngOnInit(): void {
+	ngOnInit(): void {        
         this.demoType = localStorage.demoType;
         if (this.demoType === 'Student') {
             this.classList = this.demoService.studentClassList;