add changes

backend/server.js

@@ -7,7 +7,7 @@ const swaggerSpec = require('./config/swagger');
 const logger = require('./config/logger');
 const { errorHandler, notFoundHandler } = require('./middleware/errorHandler');
 const { testConnection, getDatabaseStats } = require('./config/db');
-const { validateEnvironment } = require('./validate-env');
+const { validateEnvironment } = require('./tests/validate-env');
 const { isRedisConnected } = require('./config/redis');
 
 // Security middleware

backend/tests/check-categories.js

@@ -1,4 +1,4 @@
-const { Category } = require('./models');
+const { Category } = require('../models');
 
 async function checkCategories() {
   const allActive = await Category.findAll({

backend/tests/check-category-ids.js

@@ -1,4 +1,4 @@
-const { Category } = require('./models');
+const { Category } = require('../models');
 
 async function checkCategoryIds() {
   try {

backend/tests/check-questions.js

@@ -1,4 +1,4 @@
-const { Question, Category } = require('./models');
+const { Question, Category } = require('../models');
 
 async function checkQuestions() {
   try {

backend/tests/drop-categories.js

@@ -1,5 +1,5 @@
 // Script to drop categories table
-const { sequelize } = require('./models');
+const { sequelize } = require('../models');
 
 async function dropCategoriesTable() {
   try {

backend/tests/get-category-mapping.js

@@ -1,4 +1,4 @@
-const { Category } = require('./models');
+const { Category } = require('../models');
 
 async function getCategoryMapping() {
   try {

backend/tests/get-question-mapping.js

@@ -1,4 +1,4 @@
-const { Question, Category } = require('./models');
+const { Question, Category } = require('../models');
 
 async function getQuestionMapping() {
   try {

backend/tests/test-category-model.js

@@ -1,5 +1,5 @@
 // Category Model Tests
-const { sequelize, Category } = require('./models');
+const { sequelize, Category } = require('../models');
 
 async function runTests() {
   try {

backend/tests/test-db-connection.js

@@ -1,5 +1,5 @@
 require('dotenv').config();
-const db = require('./models');
+const db = require('../models');
 
 async function testDatabaseConnection() {
   console.log('\n🔍 Testing Database Connection...\n');

backend/tests/test-find-by-pk.js

@@ -1,4 +1,4 @@
-const { Category } = require('./models');
+const { Category } = require('../models');
 
 async function testFindByPk() {
   try {

backend/tests/test-guest-quiz-limit.js

@@ -125,7 +125,7 @@ async function runTests() {
     try {
       // Create a token with fake guest ID
       const jwt = require('jsonwebtoken');
-      const config = require('./config/config');
+      const config = require('../config/config');
       const fakeToken = jwt.sign(
         { guestId: 'guest_fake_12345' },
         config.jwt.secret,

backend/tests/test-guest-session-model.js

@@ -1,5 +1,5 @@
 // GuestSession Model Tests
-const { sequelize, GuestSession, User } = require('./models');
+const { sequelize, GuestSession, User } = require('../models');
 
 async function runTests() {
   try {

backend/tests/test-junction-tables.js

@@ -1,5 +1,5 @@
-const { sequelize } = require('./models');
-const { User, Category, Question, GuestSession, QuizSession } = require('./models');
+const { sequelize } = require('../models');
+const { User, Category, Question, GuestSession, QuizSession } = require('../models');
 const { QueryTypes } = require('sequelize');
 
 async function runTests() {

backend/tests/test-limit-reached.js

@@ -13,7 +13,7 @@ async function testLimitReached() {
 
   try {
     // First, update the guest session to simulate reaching limit
-    const { GuestSession } = require('./models');
+    const { GuestSession } = require('../models');
 
     console.log('Step 1: Updating guest session to simulate limit reached...');
     const guestSession = await GuestSession.findOne({

backend/tests/test-question-model.js

@@ -1,5 +1,5 @@
 // Question Model Tests
-const { sequelize, Question, Category, User } = require('./models');
+const { sequelize, Question, Category, User } = require('../models');
 
 async function runTests() {
   try {

backend/tests/test-quiz-session-model.js

@@ -1,5 +1,5 @@
-const { sequelize } = require('./models');
-const { User, Category, GuestSession, QuizSession } = require('./models');
+const { sequelize } = require('../models');
+const { User, Category, GuestSession, QuizSession } = require('../models');
 
 async function runTests() {
   console.log('🧪 Running QuizSession Model Tests\n');

backend/tests/test-user-model.js

@@ -1,5 +1,5 @@
 require('dotenv').config();
-const db = require('./models');
+const db = require('../models');
 const { User } = db;
 
 async function testUserModel() {

backend/tests/verify-seeded-data.js

@@ -1,5 +1,5 @@
 const { Sequelize } = require('sequelize');
-const config = require('./config/database');
+const config = require('../config/database');
 
 const sequelize = new Sequelize(
   config.development.database,

frontend/src/app/core/models/dashboard.model.ts

@@ -4,17 +4,92 @@ import { QuizSession, QuizSessionHistory } from './quiz.model';
 /**
  * User Dashboard Response
  */
-export interface UserDashboard {
+
+export interface UserDataDashboard {
+  id: string;
+  username: string;
+  email: string;
+  role: string;
+  profileImage: string | null;
+  memberSince: string;
+}
+export interface StatsDashboard {
+  totalQuizzes: number
+  quizzesPassed: number
+  passRate: number
+  totalQuestionsAnswered: number
+  correctAnswers: number
+  overallAccuracy: number
+  currentStreak: number
+  longestStreak: number
+  streakStatus: string;
+  lastActiveDate: string | null
+
+}
+export interface RecentSessionsScoreDashboard {
+  earned: number
+  total: number
+  percentage: number
+}
+export interface RecentSessionsCategoryDashboard {
+  id: string
+  name: string
+  slug: string
+  icon: any
+  color: string
+}
+export interface RecentSessionsDashboard {
+  id: string
+  category: RecentSessionsCategoryDashboard
+  quizType: string
+  difficulty: string
+  status: string
+  score: RecentSessionsScoreDashboard
+  isPassed: boolean
+  questionsAnswered: number
+  correctAnswers: number
+  accuracy: number
+  timeSpent: number
+  completedAt: string
+}
+export interface CategoryPerformanceStats {
+  quizzesTaken: number
+  quizzesPassed: number
+  passRate: number
+  averageScore: number
+  totalQuestions: number
+  correctAnswers: number
+  accuracy: number
+}
+export interface CategoryPerformanceDashboard {
+  category: RecentSessionsCategoryDashboard
+  stats: CategoryPerformanceStats
+  lastAttempt: string
+}
+
+export interface RecentActivityDashboard {
+  date: string
+  quizzesCompleted: number
+}
+export interface UserDashboardResponse {
   success: boolean;
-  totalQuizzes: number;
-  totalQuestionsAnswered: number;
-  overallAccuracy: number;
-  currentStreak: number;
-  longestStreak: number;
-  averageScore: number;
-  recentQuizzes: QuizSession[];
-  categoryPerformance: CategoryPerformance[];
-  achievements?: Achievement[];
+  data: UserDashboard
+}
+export interface UserDashboard {
+  user: UserDataDashboard;
+  stats: StatsDashboard;
+  recentSessions: RecentSessionsDashboard[]
+  categoryPerformance: CategoryPerformanceDashboard[]
+  recentActivity: RecentActivityDashboard[]
+  // totalQuizzes: number;
+  // totalQuestionsAnswered: number;
+  // overallAccuracy: number;
+  // currentStreak: number;
+  // longestStreak: number;
+  // averageScore: number;
+  // recentQuizzes: QuizSession[];
+  // categoryPerformance: CategoryPerformance[];
+  // achievements?: Achievement[];
 }
 
 /**
@@ -37,14 +112,14 @@ export interface QuizHistoryResponse {
     sessions: QuizSessionHistory[];
     pagination: PaginationInfo;
     filters: {
-      "category": null,
-      "status": null,
-      "startDate": null,
-      "endDate": null
+      category: null,
+      status: null,
+      startDate: null,
+      endDate: null
     }
-    "sorting": {
-      "sortBy": string
-      "sortOrder": string
+    sorting: {
+      sortBy: string
+      sortOrder: string
     }
   };
 }

frontend/src/app/core/models/quiz.model.ts

@@ -263,6 +263,7 @@ export interface QuizQuestionResult {
   // Legacy support
   questionId?: string;
   timeSpent?: number;
+
 }
 
 /**

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

@@ -14,7 +14,8 @@ import {
   CompletedQuizResult,
   CompletedQuizResponse,
   QuizReviewResult,
-  QuizReviewResponse
+  QuizReviewResponse,
+  QuizSessionHistory
 } from '../models/quiz.model';
 import { ToastService } from './toast.service';
 import { StorageService } from './storage.service';
@@ -41,8 +42,13 @@ export class QuizService {
   readonly questions = this._questions.asReadonly();
 
   // Quiz results state
-  private readonly _quizResults = signal<CompletedQuizResult | QuizReviewResult | QuizResults | null>(null);
+  private readonly _quizResults = signal<QuizReviewResult | null>(null);
+  private readonly _completedQuiz = signal<CompletedQuizResult | null>(null);
+  private readonly _sessionHistoryQuiz = signal<QuizSessionHistory | null>(null);
+  //private readonly _quizResults = signal<CompletedQuizResult | QuizReviewResult | QuizResults | null>(null);
   readonly quizResults = this._quizResults.asReadonly();
+  readonly sessionQuizHistory = this._sessionHistoryQuiz.asReadonly();
+  readonly completedQuiz = this._completedQuiz.asReadonly();
 
   // Loading states
   private readonly _isStartingQuiz = signal<boolean>(false);
@@ -188,7 +194,7 @@ export class QuizService {
     return this.http.post<CompletedQuizResponse>(`${this.apiUrl}/complete`, { sessionId }).pipe(
       tap(results => {
         if (results.success) {
-          this._quizResults.set(results.data);
+          this._completedQuiz.set(results.data);
 
           // Update session status
           const currentSession = this._activeSession();

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

@@ -4,7 +4,7 @@ import { Router } from '@angular/router';
 import { catchError, tap, map } from 'rxjs/operators';
 import { of, Observable } from 'rxjs';
 import { environment } from '../../../environments/environment';
-import { UserDashboard, QuizHistoryResponse, UserProfileUpdate, UserProfileUpdateResponse } from '../models/dashboard.model';
+import { UserDashboard, QuizHistoryResponse, UserProfileUpdate, UserProfileUpdateResponse, UserDashboardResponse } from '../models/dashboard.model';
 import { ToastService } from './toast.service';
 import { AuthService } from './auth.service';
 import { StorageService } from './storage.service';
@@ -28,23 +28,23 @@ export class UserService {
   private readonly CACHE_TTL = 5 * 60 * 1000; // 5 minutes in milliseconds
 
   // Signals
-  dashboardState = signal<UserDashboard | null>(null);
+  dashboardState = signal<UserDashboardResponse | null>(null);
   historyState = signal<QuizHistoryResponse | null>(null);
   isLoading = signal<boolean>(false);
   error = signal<string | null>(null);
 
   // Cache
-  private dashboardCache = new Map<string, CacheEntry<UserDashboard>>();
+  private dashboardCache = new Map<string, CacheEntry<UserDashboardResponse>>();
 
   // Computed values
-  totalQuizzes = computed(() => this.dashboardState()?.totalQuizzes || 0);
-  overallAccuracy = computed(() => this.dashboardState()?.overallAccuracy || 0);
-  currentStreak = computed(() => this.dashboardState()?.currentStreak || 0);
+  totalQuizzes = computed(() => this.dashboardState()?.data.stats.totalQuizzes || 0);
+  overallAccuracy = computed(() => this.dashboardState()?.data.stats.overallAccuracy || 0);
+  currentStreak = computed(() => this.dashboardState()?.data.stats.currentStreak || 0);
 
   /**
    * Get user dashboard with statistics
    */
-  getDashboard(userId: string, forceRefresh = false): Observable<UserDashboard> {
+  getDashboard(userId: string, forceRefresh = false): Observable<UserDashboardResponse> {
     // Check cache if not forcing refresh
     if (!forceRefresh) {
       const cached = this.dashboardCache.get(userId);
@@ -57,7 +57,7 @@ export class UserService {
     this.isLoading.set(true);
     this.error.set(null);
 
-    return this.http.get<UserDashboard>(`${this.API_URL}/${userId}/dashboard`).pipe(
+    return this.http.get<UserDashboardResponse>(`${this.API_URL}/${userId}/dashboard`).pipe(
       tap(response => {
         this.dashboardState.set(response);
         // Cache the response
@@ -182,6 +182,6 @@ export class UserService {
    */
   isDashboardEmpty(): boolean {
     const dashboard = this.dashboardState();
-    return dashboard ? dashboard.totalQuizzes === 0 : true;
+    return dashboard ? dashboard.data.stats.totalQuizzes === 0 : true;
   }
 }

frontend/src/app/features/dashboard/dashboard.component.html

@@ -75,25 +75,22 @@
       </mat-card-header>
       <mat-card-content>
         <div class="category-performance">
-          <div 
-            *ngFor="let category of topCategories()" 
-            class="category-bar"
-            (click)="viewCategory(category.categoryId)"
-          >
+          <div *ngFor="let category of topCategories()" class="category-bar"
+            (click)="viewCategory(category.category.id)">
             <div class="category-info">
-              <span class="category-name">{{ category.categoryName }}</span>
-              <span class="category-stats">
-                {{ category.quizzesTaken }} {{ category.quizzesTaken === 1 ? 'quiz' : 'quizzes' }}
-              </span>
+              <span class="category-name">{{ category.category.name }}</span>
+              <!-- <span class="category-stats">
+                {{ category.category. }} {{ category.quizzesTaken === 1 ? 'quiz' : 'quizzes' }}
+              </span> -->
             </div>
             <div class="progress-bar-container">
-              <div 
+              <!-- <div 
                 class="progress-bar" 
-                [style.width.%]="category.accuracy"
-                [ngClass]="getAccuracyColor(category.accuracy)"
-              ></div>
+                [style.width.%]="category.category.accuracy"
+                [ngClass]="getAccuracyColor(category.category.accuracy)"
+              ></div> -->
             </div>
-            <span class="accuracy-value">{{ category.accuracy.toFixed(1) }}%</span>
+            <!-- <span class="accuracy-value">{{ category.accuracy.toFixed(1) }}%</span> -->
           </div>
         </div>
 
@@ -111,28 +108,19 @@
           <mat-icon>history</mat-icon>
           Recent Quiz Sessions
         </mat-card-title>
-        <button 
-          mat-button 
-          color="primary" 
-          class="view-all-btn"
-          (click)="viewAllHistory()"
-        >
+        <button mat-button color="primary" class="view-all-btn" (click)="viewAllHistory()">
           View All
           <mat-icon>arrow_forward</mat-icon>
         </button>
       </mat-card-header>
       <mat-card-content>
         <div class="sessions-list">
-          <div 
-            *ngFor="let session of recentSessions()" 
-            class="session-item"
-            (click)="viewQuizResults(session.id)"
-          >
+          <div *ngFor="let session of recentSessions()" class="session-item" (click)="viewQuizResults(session.id)">
             <div class="session-icon">
               <mat-icon>quiz</mat-icon>
             </div>
             <div class="session-info">
-              <div class="session-title">{{ session.categoryName || 'Quiz' }}</div>
+              <div class="session-title">{{ session.category.name }}</div>
               <div class="session-meta">
                 <span class="session-date">{{ formatDate(session.completedAt) }}</span>
                 <span class="session-separator">•</span>
@@ -144,13 +132,10 @@
               </div>
             </div>
             <div class="session-score">
-              <span 
-                class="score-value"
-                [ngClass]="getScoreColor(session.score, session.totalQuestions)"
-              >
-                {{ session.score }}/{{ session.totalQuestions }}
+              <span class="score-value" [ngClass]="getScoreColor(session.score.earned, session.score.total)">
+                {{ session.score.total }}/{{ session.questionsAnswered }}
               </span>
-              <span class="score-percentage">{{ ((session.score / session.totalQuestions) * 100).toFixed(0) }}%</span>
+              <span class="score-percentage">{{ session.score.percentage }}%</span>
             </div>
             <mat-icon class="session-arrow">chevron_right</mat-icon>
           </div>
@@ -173,17 +158,14 @@
       </mat-card-header>
       <mat-card-content>
         <div class="achievements-grid">
-          <div 
-            *ngFor="let achievement of achievements()" 
-            class="achievement-item"
-            [matTooltip]="achievement.description"
-          >
+          <div *ngFor="let achievement of achievements()" class="achievement-item"
+            [matTooltip]="achievement.category.name">
             <div class="achievement-icon">
-              <mat-icon>{{ achievement.icon }}</mat-icon>
+              <mat-icon>{{ achievement.category.icon }}</mat-icon>
             </div>
-            <div class="achievement-name">{{ achievement.name }}</div>
-            <div class="achievement-date" *ngIf="achievement.earnedAt">
-              {{ formatDate(achievement.earnedAt) }}
+            <div class="achievement-name">{{ achievement.category.name }}</div>
+            <div class="achievement-date" *ngIf="achievement.completedAt">
+              {{ formatDate(achievement.completedAt) }}
             </div>
           </div>
         </div>

frontend/src/app/features/dashboard/dashboard.component.ts

@@ -8,8 +8,8 @@ import { MatProgressSpinnerModule } from '@angular/material/progress-spinner';
 import { MatChipsModule } from '@angular/material/chips';
 import { MatTooltipModule } from '@angular/material/tooltip';
 
-import { UserDashboard,   } from '../../core/models/dashboard.model';
- import { UserService } from '../../core/services/user.service';
+import { UserDashboard, UserDashboardResponse, } from '../../core/models/dashboard.model';
+import { UserService } from '../../core/services/user.service';
 import { AuthService } from '../../core/services';
 
 @Component({
@@ -49,7 +49,7 @@ export class DashboardComponent implements OnInit {
   });
   isEmpty = computed(() => {
     const dash = this.dashboard();
-    return dash ? dash.totalQuizzes === 0 : true;
+    return dash ? dash.stats.totalQuizzes === 0 : true;
   });
 
   // Stat cards computed
@@ -60,29 +60,29 @@ export class DashboardComponent implements OnInit {
     return [
       {
         title: 'Total Quizzes',
-        value: dash.totalQuizzes,
+        value: dash.stats.totalQuizzes,
         icon: 'quiz',
         color: 'primary',
         description: 'Quizzes completed'
       },
       {
         title: 'Overall Accuracy',
-        value: `${dash.overallAccuracy.toFixed(1)}%`,
+        value: `${dash.stats.overallAccuracy.toFixed(1)}%`,
         icon: 'percent',
         color: 'success',
         description: 'Correct answers'
       },
       {
         title: 'Current Streak',
-        value: dash.currentStreak,
+        value: dash.stats.currentStreak,
         icon: 'local_fire_department',
         color: 'warning',
         description: 'Days in a row',
-        badge: dash.longestStreak > 0 ? `Best: ${dash.longestStreak}` : undefined
+        badge: dash.stats.longestStreak > 0 ? `Best: ${dash.stats.longestStreak}` : undefined
       },
       {
         title: 'Questions Answered',
-        value: dash.totalQuestionsAnswered,
+        value: dash.stats.totalQuestionsAnswered,
         icon: 'question_answer',
         color: 'accent',
         description: 'Total questions'
@@ -96,22 +96,22 @@ export class DashboardComponent implements OnInit {
     if (!dash || !dash.categoryPerformance) return [];
 
     return [...dash.categoryPerformance]
-      .sort((a, b) => b.accuracy - a.accuracy)
+      .sort((a, b) => b.stats.accuracy - a.stats.accuracy)
       .slice(0, 5);
   });
 
   // Recent sessions computed
   recentSessions = computed(() => {
     const dash = this.dashboard();
-    if (!dash || !dash.recentQuizzes) return [];
+    if (!dash || !dash.recentSessions) return [];
 
-    return dash.recentQuizzes.slice(0, 5);
+    return dash.recentSessions.slice(0, 5);
   });
 
   // Achievements computed
   achievements = computed(() => {
     const dash = this.dashboard();
-    return dash?.achievements || [];
+    return dash?.recentSessions || [];
   });
 
   ngOnInit(): void {
@@ -134,8 +134,8 @@ export class DashboardComponent implements OnInit {
     this.error.set(null);
 
     (this.userService as any).getDashboard(user.id).subscribe({
-      next: (data: UserDashboard) => {
-        this.dashboard.set(data);
+      next: (res: UserDashboardResponse) => {
+        this.dashboard.set(res.data);
         this.isLoading.set(false);
       },
       error: (err: any) => {

frontend/src/app/features/quiz/quiz-results/quiz-results.html

@@ -45,39 +45,36 @@
           <div class="score-circle">
             <svg viewBox="0 0 100 100">
               <circle cx="50" cy="50" r="45" class="score-bg"></circle>
-                <circle 
-                  cx="50" 
-                  cy="50" 
-                  r="45" 
-                  class="score-progress"
-                  [style.stroke-dashoffset]="283 - (283 * scorePercentage() / 100)"
-                ></circle>
+              <circle cx="50" cy="50" r="45" class="score-progress"
+                [style.stroke-dashoffset]="283 - (283 * scorePercentage() / 100)"></circle>
             </svg>
             <div class="score-text">
-                <span class="score-number">{{ scorePercentage() }}%</span>
-                <span class="score-label">Score</span>
+              @let score = results()!.summary.score.total> 0 ? (results()!.summary.score.earned /
+              results()!.summary.score.total) * 100 : 0;
+              <span class="score-number">{{score }}%</span>
+              <span class="score-label ">Score</span>
             </div>
           </div>
           <div class="score-details">
             <div class="score-stat">
               <mat-icon class="stat-icon success">check_circle</mat-icon>
               <div>
-                  <div class="stat-value">{{ results()!.correctAnswers }}</div>
+                <div class="stat-value">{{ results()!.summary.questions.correct }}</div>
                 <div class="stat-label">Correct</div>
               </div>
             </div>
             <div class="score-stat">
               <mat-icon class="stat-icon error">cancel</mat-icon>
               <div>
-                  <div class="stat-value">{{ results()!.incorrectAnswers }}</div>
+                <div class="stat-value">{{ results()!.summary.questions.incorrect }}</div>
                 <div class="stat-label">Incorrect</div>
               </div>
             </div>
-              @if (results()!.skippedAnswers > 0) {
+            @if (results()!.summary.questions.unanswered > 0) {
             <div class="score-stat">
               <mat-icon class="stat-icon warning">remove_circle</mat-icon>
               <div>
-                    <div class="stat-value">{{ results()!.skippedAnswers }}</div>
+                <div class="stat-value">{{ results()!.summary.questions.unanswered }}</div>
                 <div class="stat-label">Skipped</div>
               </div>
             </div>
@@ -90,14 +87,14 @@
         <div class="quiz-metadata">
           <div class="metadata-item">
             <mat-icon>timer</mat-icon>
-              <span>Time: {{ formatTime(results()!.timeSpent) }}</span>
+            <span>Time: {{ formatTime(results()!.session.timeSpent) }}</span>
           </div>
           <div class="metadata-item">
             <mat-icon>quiz</mat-icon>
-              <span>{{ results()!.totalQuestions }} Questions</span>
+            <span>{{ results()!!.summary.questions.total }} Questions</span>
           </div>
           <div class="metadata-item">
-              @if (results()!.isPassed) {
+            @if (results()!.summary.isPassed) {
             <mat-icon class="success">verified</mat-icon>
             <span class="success">Passed</span>
             } @else {
@@ -119,47 +116,25 @@
           <div class="pie-chart">
             <svg viewBox="0 0 200 200">
               <!-- Correct answers slice -->
-                <circle
-                  cx="100"
-                  cy="100"
-                  r="80"
-                  fill="transparent"
-                  stroke="#4caf50"
-                  stroke-width="40"
-                  [style.stroke-dasharray]="chartPercentages().correct * 5.03 + ' 503'"
-                  transform="rotate(-90 100 100)"
-                ></circle>
+              <circle cx="100" cy="100" r="80" fill="transparent" stroke="#4caf50" stroke-width="40"
+                [style.stroke-dasharray]="chartPercentages().correct * 5.03 + ' 503'" transform="rotate(-90 100 100)">
+              </circle>
 
               <!-- Incorrect answers slice -->
-                <circle
-                  cx="100"
-                  cy="100"
-                  r="80"
-                  fill="transparent"
-                  stroke="#f44336"
-                  stroke-width="40"
+              <circle cx="100" cy="100" r="80" fill="transparent" stroke="#f44336" stroke-width="40"
                 [style.stroke-dasharray]="chartPercentages().incorrect * 5.03 + ' 503'"
-                  [style.stroke-dashoffset]="-chartPercentages().correct * 5.03"
-                  transform="rotate(-90 100 100)"
-                ></circle>
+                [style.stroke-dashoffset]="-chartPercentages().correct * 5.03" transform="rotate(-90 100 100)"></circle>
 
               <!-- Skipped answers slice (if any) -->
               @if (chartPercentages().skipped > 0) {
-                  <circle
-                    cx="100"
-                    cy="100"
-                    r="80"
-                    fill="transparent"
-                    stroke="#ff9800"
-                    stroke-width="40"
+              <circle cx="100" cy="100" r="80" fill="transparent" stroke="#ff9800" stroke-width="40"
                 [style.stroke-dasharray]="chartPercentages().skipped * 5.03 + ' 503'"
                 [style.stroke-dashoffset]="-(chartPercentages().correct + chartPercentages().incorrect) * 5.03"
-                    transform="rotate(-90 100 100)"
-                  ></circle>
+                transform="rotate(-90 100 100)"></circle>
               }
             </svg>
             <div class="chart-center">
-                <span class="chart-total">{{ results()!.totalQuestions }}</span>
+              <span class="chart-total">{{ results()!.summary.questions.total }}</span>
               <span class="chart-label">Questions</span>
             </div>
           </div>
@@ -240,33 +215,19 @@
 
     <!-- Action Buttons -->
     <div class="action-buttons">
-        <button 
-          mat-raised-button 
-          color="primary" 
-          (click)="retakeQuiz()"
-          class="action-btn"
-        >
+      <button mat-raised-button color="primary" (click)="retakeQuiz()" class="action-btn">
         <mat-icon>refresh</mat-icon>
         Retake Quiz
       </button>
 
       @if (hasIncorrectAnswers()) {
-          <button 
-            mat-raised-button 
-            color="accent" 
-            (click)="reviewIncorrect()"
-            class="action-btn"
-          >
+      <button mat-raised-button color="accent" (click)="reviewIncorrect()" class="action-btn">
         <mat-icon>rate_review</mat-icon>
         Review Incorrect Answers
       </button>
       }
 
-        <button 
-          mat-raised-button 
-          (click)="goToDashboard()"
-          class="action-btn"
-        >
+      <button mat-raised-button (click)="goToDashboard()" class="action-btn">
         <mat-icon>dashboard</mat-icon>
         Return to Dashboard
       </button>
@@ -279,54 +240,37 @@
       </mat-card-header>
       <mat-card-content>
         <div class="share-buttons">
-            <button 
-              mat-mini-fab 
-              color="primary"
-              (click)="shareResults('twitter')"
-              matTooltip="Share on Twitter"
-              class="share-btn twitter"
-            >
+          <button mat-mini-fab color="primary" (click)="shareResults('twitter')" matTooltip="Share on Twitter"
+            class="share-btn twitter">
             <mat-icon>
               <svg viewBox="0 0 24 24" width="24" height="24">
-                  <path fill="currentColor" d="M22.46,6C21.69,6.35 20.86,6.58 20,6.69C20.88,6.16 21.56,5.32 21.88,4.31C21.05,4.81 20.13,5.16 19.16,5.36C18.37,4.5 17.26,4 16,4C13.65,4 11.73,5.92 11.73,8.29C11.73,8.63 11.77,8.96 11.84,9.27C8.28,9.09 5.11,7.38 3,4.79C2.63,5.42 2.42,6.16 2.42,6.94C2.42,8.43 3.17,9.75 4.33,10.5C3.62,10.5 2.96,10.3 2.38,10C2.38,10 2.38,10 2.38,10.03C2.38,12.11 3.86,13.85 5.82,14.24C5.46,14.34 5.08,14.39 4.69,14.39C4.42,14.39 4.15,14.36 3.89,14.31C4.43,16 6,17.26 7.89,17.29C6.43,18.45 4.58,19.13 2.56,19.13C2.22,19.13 1.88,19.11 1.54,19.07C3.44,20.29 5.70,21 8.12,21C16,21 20.33,14.46 20.33,8.79C20.33,8.6 20.33,8.42 20.32,8.23C21.16,7.63 21.88,6.87 22.46,6Z" />
+                <path fill="currentColor"
+                  d="M22.46,6C21.69,6.35 20.86,6.58 20,6.69C20.88,6.16 21.56,5.32 21.88,4.31C21.05,4.81 20.13,5.16 19.16,5.36C18.37,4.5 17.26,4 16,4C13.65,4 11.73,5.92 11.73,8.29C11.73,8.63 11.77,8.96 11.84,9.27C8.28,9.09 5.11,7.38 3,4.79C2.63,5.42 2.42,6.16 2.42,6.94C2.42,8.43 3.17,9.75 4.33,10.5C3.62,10.5 2.96,10.3 2.38,10C2.38,10 2.38,10 2.38,10.03C2.38,12.11 3.86,13.85 5.82,14.24C5.46,14.34 5.08,14.39 4.69,14.39C4.42,14.39 4.15,14.36 3.89,14.31C4.43,16 6,17.26 7.89,17.29C6.43,18.45 4.58,19.13 2.56,19.13C2.22,19.13 1.88,19.11 1.54,19.07C3.44,20.29 5.70,21 8.12,21C16,21 20.33,14.46 20.33,8.79C20.33,8.6 20.33,8.42 20.32,8.23C21.16,7.63 21.88,6.87 22.46,6Z" />
               </svg>
             </mat-icon>
           </button>
 
-            <button 
-              mat-mini-fab 
-              color="primary"
-              (click)="shareResults('linkedin')"
-              matTooltip="Share on LinkedIn"
-              class="share-btn linkedin"
-            >
+          <button mat-mini-fab color="primary" (click)="shareResults('linkedin')" matTooltip="Share on LinkedIn"
+            class="share-btn linkedin">
             <mat-icon>
               <svg viewBox="0 0 24 24" width="24" height="24">
-                  <path fill="currentColor" d="M19 3A2 2 0 0 1 21 5V19A2 2 0 0 1 19 21H5A2 2 0 0 1 3 19V5A2 2 0 0 1 5 3H19M18.5 18.5V13.2A3.26 3.26 0 0 0 15.24 9.94C14.39 9.94 13.4 10.46 12.92 11.24V10.13H10.13V18.5H12.92V13.57C12.92 12.8 13.54 12.17 14.31 12.17A1.4 1.4 0 0 1 15.71 13.57V18.5H18.5M6.88 8.56A1.68 1.68 0 0 0 8.56 6.88C8.56 5.95 7.81 5.19 6.88 5.19A1.69 1.69 0 0 0 5.19 6.88C5.19 7.81 5.95 8.56 6.88 8.56M8.27 18.5V10.13H5.5V18.5H8.27Z" />
+                <path fill="currentColor"
+                  d="M19 3A2 2 0 0 1 21 5V19A2 2 0 0 1 19 21H5A2 2 0 0 1 3 19V5A2 2 0 0 1 5 3H19M18.5 18.5V13.2A3.26 3.26 0 0 0 15.24 9.94C14.39 9.94 13.4 10.46 12.92 11.24V10.13H10.13V18.5H12.92V13.57C12.92 12.8 13.54 12.17 14.31 12.17A1.4 1.4 0 0 1 15.71 13.57V18.5H18.5M6.88 8.56A1.68 1.68 0 0 0 8.56 6.88C8.56 5.95 7.81 5.19 6.88 5.19A1.69 1.69 0 0 0 5.19 6.88C5.19 7.81 5.95 8.56 6.88 8.56M8.27 18.5V10.13H5.5V18.5H8.27Z" />
               </svg>
             </mat-icon>
           </button>
 
-            <button 
-              mat-mini-fab 
-              color="primary"
-              (click)="shareResults('facebook')"
-              matTooltip="Share on Facebook"
-              class="share-btn facebook"
-            >
+          <button mat-mini-fab color="primary" (click)="shareResults('facebook')" matTooltip="Share on Facebook"
+            class="share-btn facebook">
             <mat-icon>
               <svg viewBox="0 0 24 24" width="24" height="24">
-                  <path fill="currentColor" d="M12 2.04C6.5 2.04 2 6.53 2 12.06C2 17.06 5.66 21.21 10.44 21.96V14.96H7.9V12.06H10.44V9.85C10.44 7.34 11.93 5.96 14.22 5.96C15.31 5.96 16.45 6.15 16.45 6.15V8.62H15.19C13.95 8.62 13.56 9.39 13.56 10.18V12.06H16.34L15.89 14.96H13.56V21.96A10 10 0 0 0 22 12.06C22 6.53 17.5 2.04 12 2.04Z" />
+                <path fill="currentColor"
+                  d="M12 2.04C6.5 2.04 2 6.53 2 12.06C2 17.06 5.66 21.21 10.44 21.96V14.96H7.9V12.06H10.44V9.85C10.44 7.34 11.93 5.96 14.22 5.96C15.31 5.96 16.45 6.15 16.45 6.15V8.62H15.19C13.95 8.62 13.56 9.39 13.56 10.18V12.06H16.34L15.89 14.96H13.56V21.96A10 10 0 0 0 22 12.06C22 6.53 17.5 2.04 12 2.04Z" />
               </svg>
             </mat-icon>
           </button>
 
-            <button 
-              mat-mini-fab 
-              (click)="copyLink()"
-              matTooltip="Copy Link"
-              class="share-btn copy"
-            >
+          <button mat-mini-fab (click)="copyLink()" matTooltip="Copy Link" class="share-btn copy">
             <mat-icon>link</mat-icon>
           </button>
         </div>

frontend/src/app/features/quiz/quiz-results/quiz-results.scss

@@ -88,6 +88,7 @@
     opacity: 0;
     transform: translateY(20px);
   }
+
   to {
     opacity: 1;
     transform: translateY(0);
@@ -172,6 +173,7 @@
     transform: scale(0);
     opacity: 0;
   }
+
   to {
     transform: scale(1);
     opacity: 1;
@@ -252,6 +254,7 @@
       }
 
       .score-label {
+        margin-top: 10px;
         display: block;
         font-size: 1rem;
         color: var(--text-secondary);
@@ -349,6 +352,7 @@
     opacity: 0;
     transform: translateY(30px);
   }
+
   to {
     opacity: 1;
     transform: translateY(0);

frontend/src/app/features/quiz/quiz-results/quiz-results.ts

@@ -42,7 +42,9 @@ export class QuizResultsComponent implements OnInit, OnDestroy {
   // Computed values
   readonly scorePercentage = computed(() => {
     const res = this.results();
-    return res?.percentage ?? 0;
+    console.log(res);
+
+    return res?.summary.score.percentage ?? 0;
   });
 
   readonly performanceLevel = computed(() => {
@@ -79,9 +81,9 @@ export class QuizResultsComponent implements OnInit, OnDestroy {
     if (!res) return { correct: 0, incorrect: 0, skipped: 0 };
 
     return {
-      correct: res.correctAnswers,
-      incorrect: res.incorrectAnswers,
-      skipped: res.skippedAnswers
+      correct: res.summary.questions.correct,
+      incorrect: res.summary.questions.incorrect,
+      skipped: res.summary.questions.unanswered
     };
   });
 
@@ -245,7 +247,7 @@ export class QuizResultsComponent implements OnInit, OnDestroy {
     const results = this.results();
     if (!results) return;
 
-    const text = `I scored ${results.percentage}% on my quiz! 🎯`;
+    const text = `I scored ${results.summary.score.percentage}% on my quiz! 🎯`;
     const url = window.location.href;
 
     let shareUrl = '';

frontend/src/app/features/quiz/quiz-review/quiz-review.html

@@ -65,7 +65,9 @@
             <mat-icon>emoji_events</mat-icon>
           </div>
           <div class="card-info">
-            <div class="card-value">{{ scorePercentage() }}%</div>
+            @let score = results()!.summary.score.total> 0 ? (results()!.summary.score.earned /
+            results()!.summary.score.total) * 100 : 0;
+            <div class="card-value">{{ score }}%</div>
             <div class="card-label">Score</div>
           </div>
         </mat-card-content>

frontend/src/app/features/quiz/quiz-review/quiz-review.ts

@@ -87,14 +87,6 @@ export class QuizReviewComponent implements OnInit, OnDestroy {
     this.allQuestions().filter(q => !q.isCorrect).length
   );
 
-  readonly scorePercentage = computed(() => {
-    const res = this.results();
-    if (res && 'summary' in res) {
-      return res.summary.score.percentage;
-    }
-    return 0;
-  });
-
   readonly sessionInfo = computed(() => {
     const res = this.results();
     if (res && 'session' in res) {