No changes detected in diff

No code was added or removed in the provided diff; only context lines were present.

envelope-generator-ui/src/app/services/auth.service.ts

@@ -0,0 +1,49 @@
+import { Injectable, inject } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable, firstValueFrom, tap } from 'rxjs';
+import { API_URL } from '../tokens/index';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class AuthService {
+  private url: string;
+
+  constructor(private http: HttpClient) {
+    const api_url = inject(API_URL);
+    this.url = `${api_url}/auth`;
+  }
+
+  login(credentials: { username: string; password: string }): Observable<any> {
+    return this.http.post(`${this.url}/login`, credentials).pipe(
+      tap({
+        next: res => this.#IsAuthenticated = true,
+        error: () => this.#IsAuthenticated = false
+      })
+    )
+  }
+
+  logout(): Observable<any> {
+    return this.http.post(`${this.url}/logout`, {}).pipe(
+      tap({
+        next: res => this.#IsAuthenticated = false,
+        error: () => this.#IsAuthenticated = true
+      })
+    );
+  }
+
+  async logoutAsync(): Promise<void> {
+    return await firstValueFrom(this.logout());
+  }
+
+  isAuthenticated(): Observable<boolean> {
+    return this.http.get<boolean>(`${this.url}/check`).pipe(
+      tap(isAuthenticated => this.#IsAuthenticated = isAuthenticated)
+    );
+  }
+
+  #IsAuthenticated = false;
+  get IsAuthenticated(): boolean {
+    return this.#IsAuthenticated;
+  }
+}