add changes

frontend/src/app/core/services/admin.service.ts

@@ -73,12 +73,14 @@ export class AdminService {
   readonly isLoadingUsers = signal<boolean>(false);
   readonly usersError = signal<string | null>(null);
   readonly usersPagination = signal<{
-    currentPage: number;
-    totalPages: number;
-    totalUsers: number;
-    limit: number;
-    hasNext: boolean;
-    hasPrev: boolean;
+ 
+      currentPage: number;
+      totalPages: number;
+      totalItems: number;
+      itemsPerPage: number;
+      hasNextPage: boolean;
+      hasPreviousPage: boolean;
+
   } | null>(null);
   readonly currentUserFilters = signal<UserListParams>({});
 
@@ -95,18 +97,18 @@ export class AdminService {
 
   // Computed signals - Statistics
   readonly hasStats = computed(() => this.adminStatsState() !== null);
-  readonly totalUsers = computed(() => this.adminStatsState()?.totalUsers ?? 0);
-  readonly activeUsers = computed(() => this.adminStatsState()?.activeUsers ?? 0);
-  readonly totalQuizSessions = computed(() => this.adminStatsState()?.totalQuizSessions ?? 0);
-  readonly totalQuestions = computed(() => this.adminStatsState()?.totalQuestions ?? 0);
-  readonly averageScore = computed(() => this.adminStatsState()?.averageQuizScore ?? 0);
+  readonly totalUsers = computed(() => this.adminStatsState()?.users.total ?? 0);
+  readonly activeUsers = computed(() => this.adminStatsState()?.users.active ?? 0);
+  readonly totalQuizSessions = computed(() => this.adminStatsState()?.quizzes.totalSessions ?? 0);
+  readonly totalQuestions = computed(() => this.adminStatsState()?.content.totalQuestions ?? 0);
+  readonly averageScore = computed(() => this.adminStatsState()?.quizzes.averageScore ?? 0);
 
   // Computed signals - Guest Analytics
   readonly hasAnalytics = computed(() => this.guestAnalyticsState() !== null);
-  readonly totalGuestSessions = computed(() => this.guestAnalyticsState()?.totalGuestSessions ?? 0);
-  readonly activeGuestSessions = computed(() => this.guestAnalyticsState()?.activeGuestSessions ?? 0);
-  readonly conversionRate = computed(() => this.guestAnalyticsState()?.conversionRate ?? 0);
-  readonly avgQuizzesPerGuest = computed(() => this.guestAnalyticsState()?.averageQuizzesPerGuest ?? 0);
+  readonly totalGuestSessions = computed(() => this.guestAnalyticsState()?.overview.totalGuestSessions ?? 0);
+  readonly activeGuestSessions = computed(() => this.guestAnalyticsState()?.overview.activeGuestSessions ?? 0);
+  readonly conversionRate = computed(() => this.guestAnalyticsState()?.overview.conversionRate ?? 0);
+  readonly avgQuizzesPerGuest = computed(() => this.guestAnalyticsState()?.quizActivity.avgQuizzesPerGuest ?? 0);
 
   // Computed signals - Guest Settings
   readonly hasSettings = computed(() => this.guestSettingsState() !== null);
@@ -116,7 +118,7 @@ export class AdminService {
 
   // Computed signals - User Management
   readonly hasUsers = computed(() => this.adminUsersState().length > 0);
-  readonly totalUsersCount = computed(() => this.usersPagination()?.totalUsers ?? 0);
+  readonly totalUsersCount = computed(() => this.usersPagination()?.totalItems ?? 0);
   readonly currentPage = computed(() => this.usersPagination()?.currentPage ?? 1);
   readonly totalPages = computed(() => this.usersPagination()?.totalPages ?? 1);