Add "my-publications" page.

frontend/src/app/pages/my-publications/my-publications.service.ts

@@ -0,0 +1,57 @@
+import { inject, Injectable } from "@angular/core";
+import { PublicationRestService } from "../../core/rest-services/publications/publication.rest-service";
+import { AuthenticationService } from "../../core/service/authentication.service";
+import { BehaviorSubject, Observable } from "rxjs";
+import { Publication } from "../../core/rest-services/publications/model/publication";
+import { Router } from "@angular/router";
+import { MatSnackBar } from "@angular/material/snack-bar";
+
+@Injectable()
+export class MyPublicationsService {
+    private readonly authenticationService = inject(AuthenticationService);
+    private readonly publicationRestService = inject(PublicationRestService);
+    private readonly snackBar = inject(MatSnackBar);
+    private readonly router = inject(Router);
+    private publicationsSubject = new BehaviorSubject<Publication[]>([]);
+    private isLoadingSubject = new BehaviorSubject<boolean>(false);
+    private isLoadedSubject = new BehaviorSubject<boolean>(false);
+
+    get publications$(): Observable<Publication[]> {
+        return this.publicationsSubject.asObservable();
+    }
+
+    get isLoading$(): Observable<boolean> {
+        return this.isLoadingSubject.asObservable();
+    }
+
+    get isLoaded$(): Observable<boolean> {
+        return this.isLoadedSubject.asObservable();
+    }
+
+    loadAuthenticatedUserPublications(): void {
+        const authenticatedUser = this.authenticationService.getAuthenticatedUser();
+        if (authenticatedUser) {
+            this.isLoadingSubject.next(true);
+            this.isLoadedSubject.next(false);
+
+            const query = `author_id=${authenticatedUser.id}`;
+            this.publicationRestService.search(query)
+                .then(publications => {
+                    this.publicationsSubject.next(publications);
+                })
+                .catch(error => {
+                    const errorMessage = 'An error occurred while retrieving your publications...';
+                    this.snackBar.open(errorMessage);
+                    console.error(errorMessage, error);
+                })
+                .finally(() => {
+                    this.isLoadingSubject.next(false);
+                    this.isLoadedSubject.next(true);
+                });
+        } else {
+            this.authenticationService.unauthenticate();
+            this.snackBar.open('You are unauthenticated. Please, log-in first.', 'Close', { duration: 5000 });
+            this.router.navigate(['/login']);
+        }
+    }
+}