Upgrade to proper user management

src/app/services/utils.service.ts

@@ -1,4 +1,5 @@
 import {Injectable} from '@angular/core';
+import {Session} from '../models/session';
 
 @Injectable({
 	providedIn: 'root'
@@ -20,4 +21,21 @@ export class UtilsService {
 	static getNameFromLocalStorage(): string {
 		return localStorage.getItem('name') ?? '';
 	}
+
+	static saveSessionInfoToLocalStorage(sessionId: number, sessionKey: string): void {
+		localStorage.setItem('sessionId', sessionId.toString());
+		localStorage.setItem('sessionKey', sessionKey);
+	}
+
+	static getSessionInfoFromLocalStorage(): Session {
+		return {
+			sessionId: parseInt((localStorage.getItem('sessionId') ?? '-1'), 10),
+			sessionKey: localStorage.getItem('sessionKey') ?? ''
+		}
+	}
+
+	static clearSessionInfo(): void {
+		localStorage.setItem('sessionId', '-1');
+		localStorage.setItem('sessionKey', '');
+	}
 }