Smart Quiz App - AI-Powered Learning Platform

🎯 Tổng quan dự án

Smart Quiz App là một nền tảng học tập thông minh sử dụng AI để tạo câu hỏi cá nhân hóa và cung cấp phản hồi chi tiết. Dự án được phát triển theo tiêu chuẩn enterprise với kiến trúc Clean Architecture, tích hợp AI thực tế, và pipeline CI/CD hoàn chỉnh.

🏆 Điểm nổi bật

AI-Powered: Tích hợp OpenAI GPT-4 và Google Gemini để tạo câu hỏi và phản hồi thông minh
Enterprise Architecture: Clean Architecture với SOLID principles
Production-Ready: Docker, Kubernetes, CI/CD pipeline hoàn chỉnh
High Performance: Redis caching, database optimization, lazy loading
Security First: JWT authentication, rate limiting, data encryption
Scalable: Microservices architecture, horizontal scaling
Monitoring: Prometheus, Grafana, comprehensive logging

🏗️ Kiến trúc hệ thống

graph TB
    subgraph "Client Layer"
        A[Android App]
        B[Web Dashboard]
    end
    
    subgraph "API Gateway"
        C[Nginx Load Balancer]
        D[Rate Limiting]
        E[SSL Termination]
    end
    
    subgraph "Application Layer"
        F[Flask API Server]
        G[Celery Workers]
        H[Background Tasks]
    end
    
    subgraph "AI Services"
        I[OpenAI GPT-4]
        J[Google Gemini]
        K[Question Generator]
        L[Feedback Engine]
    end
    
    subgraph "Data Layer"
        M[PostgreSQL]
        N[Redis Cache]
        O[File Storage]
    end
    
    subgraph "Monitoring"
        P[Prometheus]
        Q[Grafana]
        R[ELK Stack]
    end
    
    A --> C
    B --> C
    C --> D
    D --> E
    E --> F
    F --> G
    F --> I
    F --> J
    G --> K
    G --> L
    F --> M
    F --> N
    F --> O
    F --> P
    P --> Q
    F --> R

🚀 Tính năng chính

📱 Android Application

Material Design 3: UI/UX hiện đại, responsive
Offline Support: Sync dữ liệu khi có kết nối
Real-time Updates: WebSocket cho cập nhật tức thời
Biometric Authentication: Bảo mật sinh trắc học
Dark/Light Theme: Hỗ trợ theme tự động

🤖 AI-Powered Features

Smart Question Generation: Tạo câu hỏi dựa trên độ khó và chủ đề
Personalized Feedback: Phân tích chi tiết và gợi ý cải thiện
Adaptive Learning: Điều chỉnh độ khó dựa trên hiệu suất
Content Recommendation: Gợi ý nội dung học tập phù hợp

📊 Analytics & Monitoring

Real-time Metrics: Theo dõi hiệu suất hệ thống
User Analytics: Phân tích hành vi người dùng
Performance Monitoring: APM với distributed tracing
Error Tracking: Sentry integration cho error monitoring

🛠️ Tech Stack

Frontend (Android)

Language: Kotlin
Architecture: MVVM + Clean Architecture
DI: Hilt (Dagger)
Database: Room + SQLite
Network: Retrofit + OkHttp
UI: Jetpack Compose + Material Design 3
Testing: JUnit, Espresso, Mockito

Backend (API Server)

Language: Python 3.11
Framework: Flask + SQLAlchemy
Database: PostgreSQL 15
Cache: Redis 7
Queue: Celery + Redis
AI: OpenAI GPT-4, Google Gemini
Testing: pytest, coverage

DevOps & Infrastructure

Containerization: Docker + Docker Compose
Orchestration: Kubernetes
CI/CD: GitHub Actions
Monitoring: Prometheus + Grafana
Logging: ELK Stack
Security: OWASP compliance

📋 Yêu cầu hệ thống

Development Environment

Android Studio: Arctic Fox hoặc mới hơn
JDK: 17+
Python: 3.11+
Node.js: 18+ (cho tools)
Docker: 20.10+
PostgreSQL: 15+
Redis: 7+

Production Environment

CPU: 4+ cores
RAM: 8GB+ (16GB recommended)
Storage: 100GB+ SSD
Network: 1Gbps+
OS: Ubuntu 22.04 LTS

🚀 Cài đặt và chạy

1. Clone Repository

git clone https://github.com/username/smart-quiz-app.git
cd smart-quiz-app

2. Setup Environment Variables

cp server/.env.example server/.env
# Cập nhật các API keys và cấu hình trong .env

3. Start với Docker Compose

# Development
docker-compose -f docker-compose.dev.yml up -d

# Production
docker-compose up -d

4. Build Android App

./gradlew assembleDebug
# hoặc
./gradlew assembleRelease

5. Database Migration

cd server
flask db upgrade

🧪 Testing

Backend Testing

cd server
python -m pytest tests/ -v --cov=. --cov-report=html

Android Testing

# Unit Tests
./gradlew testDebugUnitTest

# Instrumented Tests
./gradlew connectedDebugAndroidTest

# UI Tests
./gradlew connectedDebugAndroidTest -Pandroid.testInstrumentationRunnerArguments.class=com.smartquiz.app.ui.MainActivityTest

Performance Testing

k6 run tests/performance/load-test.js

📊 Monitoring & Observability

Metrics Dashboard

URL: http://localhost:3000 (Grafana)
Username: admin
Password: Xem trong docker-compose.yml

Key Metrics

Response Time: P95 < 200ms
Throughput: 1000+ RPS
Error Rate: < 0.1%
Uptime: 99.9%+

Alerts

High error rate (> 1%)
Slow response time (> 500ms)
Database connection issues
Memory usage > 80%

🔒 Security

Authentication & Authorization

JWT Tokens: Secure token-based auth
Rate Limiting: API rate limiting per user
CORS: Configured for production domains
HTTPS: SSL/TLS encryption

Data Protection

Encryption: AES-256 for sensitive data
Password Hashing: bcrypt with salt
SQL Injection: Parameterized queries
XSS Protection: Input sanitization

Security Scanning

SAST: SonarQube static analysis
DAST: OWASP ZAP dynamic testing
Dependency Scanning: Snyk vulnerability checks
Container Scanning: Trivy security scans

📈 Performance Optimization

Backend Optimizations

Database Indexing: Optimized queries với indexes
Connection Pooling: PostgreSQL connection pooling
Caching Strategy: Multi-level caching với Redis
Async Processing: Celery cho background tasks

Android Optimizations

Memory Management: Proper lifecycle management
Image Loading: Glide với caching
Network Optimization: Request batching và compression
Battery Optimization: Background task optimization

🚀 Deployment

Staging Environment

# Deploy to staging
kubectl apply -f k8s/staging/

Production Deployment

# Deploy to production
kubectl apply -f k8s/production/

Blue-Green Deployment

# Switch traffic to new version
kubectl patch service smartquiz-service -p '{"spec":{"selector":{"version":"v2"}}}'

📚 API Documentation

Base URL

Development: http://localhost:5000/api/v1
Production: https://api.smartquiz.app/v1

Authentication

# Login
curl -X POST /api/v1/auth/login \
  -H "Content-Type: application/json" \
  -d '{"username":"user","password":"pass"}'

# Use token
curl -H "Authorization: Bearer <token>" /api/v1/questions/generate

Key Endpoints

POST /auth/login - User authentication
POST /questions/generate - Generate AI questions
POST /feedback/generate - Generate AI feedback
GET /analytics/user-stats - User statistics
GET /health - Health check

🤝 Contributing

Development Workflow

Fork repository
Create feature branch: git checkout -b feature/amazing-feature
Commit changes: git commit -m 'Add amazing feature'
Push to branch: git push origin feature/amazing-feature
Open Pull Request

Code Standards

Kotlin: Follow Android Kotlin style guide
Python: PEP 8 compliance
Testing: Minimum 80% code coverage
Documentation: Comprehensive inline docs

Pull Request Process

Update README.md với changes
Ensure all tests pass
Update version numbers
Get approval từ maintainers

📄 License

Dự án này được phân phối dưới MIT License. Xem LICENSE để biết thêm thông tin.

👥 Team

Lead Developer: lộc võ
Backend Developer: lộc võ
Mobile Developer: lộc võ
DevOps Engineer: lộc võ

📞 Support

Email: [email protected]
Documentation: https://docs.smartquiz.app
Issues: https://github.com/locfaker/DFS/issues
Discussions: https://github.com/locfaker/DFS/discussions

🎯 Roadmap

Q1 2024

Multi-language support
Voice questions
AR/VR integration
Advanced analytics

Q2 2024

Machine Learning recommendations
Social features
Gamification
Mobile web app

⭐ Nếu dự án này hữu ích, hãy cho chúng tôi một star trên GitHub!

Name		Name	Last commit message	Last commit date
Latest commit History 5 Commits
.github/workflows		.github/workflows
app		app
docs		docs
gradle/wrapper		gradle/wrapper
server		server
.gitignore		.gitignore
Dockerfile		Dockerfile
README.md		README.md
build.gradle		build.gradle
docker-compose.yml		docker-compose.yml
gradlew.bat		gradlew.bat
run_app.bat		run_app.bat
settings.gradle		settings.gradle
test_api.py		test_api.py

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