fix: Added serviceWorker env and fixed #19

src/app/app.module.ts

@@ -78,6 +78,7 @@ import { AttendenceComponent } from './admin-view/grades/attendence/attendence.c
 import { AttendenceSummaryComponent } from './admin-view/grades/attendence-summary/attendence-summary.component';
 import { HourDisplayComponent } from './admin-view/grades/attendence-summary/hour-display/hour-display.component';
 import { AboutComponent } from './app-view/personal/about/about.component';
+import { environment } from 'src/environments/environment';
 
 @NgModule({
   declarations: [
@@ -160,7 +161,7 @@ import { AboutComponent } from './app-view/personal/about/about.component';
     A11yModule,
     MatAutocompleteModule,
     ServiceWorkerModule.register('ngsw-worker.js', {
-      enabled: !isDevMode(),
+      enabled: environment.production,
       // Register the ServiceWorker as soon as the application is stable
       // or after 30 seconds (whichever comes first).
       registrationStrategy: 'registerWhenStable:30000'

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

@@ -8,7 +8,21 @@ import { catchError, concat, first, from, interval, tap, throwError } from 'rxjs
 })
 export class AppUpdateService implements OnInit {
 
-  constructor(readonly appRef: ApplicationRef, readonly update: SwUpdate, readonly sb: MatSnackBar) { }
+  constructor(readonly appRef: ApplicationRef, readonly update: SwUpdate, readonly sb: MatSnackBar) {
+    this.update.versionUpdates.subscribe((evt) => {
+      switch (evt.type) {
+        case 'VERSION_DETECTED':
+          console.log(`Downloading ${evt.version.hash}`);
+          break;
+        case 'VERSION_READY':
+          console.log(`Current: ${evt.currentVersion.hash}, new: ${evt.latestVersion.hash}`);
+          break;
+        case 'VERSION_INSTALLATION_FAILED':
+          console.error(`Failed to install ${evt.version.hash}: ${evt.error}`);
+          break;    
+      }
+    })
+  }
   
   ngOnInit(): void {
     const appIsStable = this.appRef.isStable.pipe(first(isStable => isStable === true))