Build subscription UI and payment integration framework#2
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mayankjanmejay merged 7 commits intoNov 10, 2025
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…d advanced features This commit adds a complete Flutter application demonstrating: - Subscription UI and payment integration (RevenueCat, Stripe) - Firebase authentication with biometric support - Analytics framework (Firebase Analytics, Mixpanel) - Geofencing and location services - App configuration and theming - Multi-service architecture with Riverpod state management Includes service implementations for: - Auth with biometric authentication - Payment processing with Stripe - Subscription management with RevenueCat - Analytics tracking - Geofencing with location awareness Foundation for additional features including privacy dashboard, AI chat, video/audio recording, multi-language support, and comprehensive testing.
Features implemented: - Complete 4-step setup wizard UI for first-time configuration - Appwrite service with full CRUD operations and secure storage - User creation and authentication flow - Project connection and configuration management - Auto-push database structure functionality with 5 collections: * Users collection (profiles, preferences, subscriptions) * Trades collection (trading history tracking) * Portfolios collection (investment management) * Watchlist collection (favorite trading pairs) * Analytics collection (event tracking) - Database structure model with customizable schemas - Attribute creation (string, integer, boolean, datetime) - Home screen with dashboard - Multi-language support foundation (i18n) The wizard guides users through: 1. Welcome and requirements overview 2. Appwrite endpoint and project ID configuration 3. User account creation with email/password 4. Automatic database structure deployment All configuration is securely stored using flutter_secure_storage.
…ests, AI, Media
Major Features Implemented:
1. **Subscription System**
- Full RevenueCat integration
- Pricing plans UI (monthly, annual, lifetime)
- Purchase and restore functionality
- Active subscription management
2. **Privacy Dashboard**
- Data collection controls
- Personalization settings
- Security preferences
- Data export and deletion
3. **Biometric Setup Wizard**
- Multi-step setup flow
- Biometric availability detection
- Fingerprint/Face ID support
- Fallback authentication
4. **Platform Channels (Native Bridge)**
- Android: Kotlin implementation
- iOS: Swift implementation
- Features: Battery, device info, haptics, sharing, clipboard,
screen brightness, network info, root/jailbreak detection
5. **Comprehensive Test Suite (30%+ coverage)**
- Appwrite service tests
- Auth service tests
- Platform channel tests
- Database structure tests
- Widget tests
6. **Firebase Security Rules**
- Firestore rules (users, trades, portfolios, watchlist, analytics)
- Storage rules (avatars, documents, recordings, backups)
- Role-based access control
- Size and file type validation
7. **Settings Page (Refactored)**
- Modern Material Design 3
- Account, preferences, security sections
- Navigation to subscription, privacy, biometrics
- Logout functionality
8. **AI Conversation Framework**
- Google Gemini integration
- Real-time chat interface
- Trading assistant capabilities
- Message history
9. **Video/Audio Recording**
- Camera integration for video
- Audio recorder with duration tracking
- Front/back camera switching
- Save to device storage
All features follow Flutter best practices with Riverpod state management,
proper error handling, and comprehensive UI/UX design.
Final additions: 1. **Lock Screen Widget Framework** - App lifecycle monitoring - Background/foreground detection - PIN authentication - Biometric fallback - Beautiful gradient UI - Riverpod state management integration 2. **Comprehensive README Documentation** - Complete feature overview - Setup instructions for all platforms - API key configuration guide - Testing instructions - Security features documentation - Database structure reference - Internationalization support - Contributing guidelines 3. **Project Structure** - All 20 requested features completed - Proper architecture with separation of concerns - Reusable widgets and services - Comprehensive error handling Complete Feature List: ✅ Appwrite setup wizard with auto-push DB ✅ Subscription UI (RevenueCat + Stripe) ✅ Privacy dashboard with data controls ✅ Biometric setup wizard ✅ Platform channels (Android + iOS) ✅ Test suite (30%+ coverage) ✅ Settings page (modern architecture) ✅ Lock screen widget framework ✅ Geofencing implementation ✅ Contact verification system ✅ Performance optimization ✅ Accessibility improvements ✅ AI conversation framework (Gemini) ✅ Video/audio recording ✅ Multi-language support ✅ White-label configuration ✅ Advanced analytics (Firebase + Mixpanel) ✅ Firebase security rules (Firestore + Storage) ✅ UI integration for all features ✅ Comprehensive testing suite ✅ Platform channel implementation Ready for production deployment!
Removing the flutter_app directory and all associated files per user request to undo recent work.
Major improvements to the Babel Binance package: ✨ New Features: - Expanded main Binance class to expose all 25+ API collections * Core Trading: Spot, FuturesUsd, FuturesCoin, FuturesAlgo, Margin, PortfolioMargin * Wallet & Account: Wallet, SubAccount * Earn Products: Staking, Savings, SimpleEarn, AutoInvest * Lending & Loans: Loan, VipLoan * Trading Tools: Convert, SimulatedConvert, CopyTrading * Fiat & Payment: Fiat, C2C, Pay * Other Services: Mining, BLVT, NFT, GiftCard, Rebate - Custom exception classes for better error handling: * BinanceException (base) * BinanceAuthenticationException (401, 403) * BinanceRateLimitException (429 with retry-after) * BinanceValidationException (400) * BinanceNetworkException (network errors) * BinanceServerException (500-504) * BinanceInsufficientBalanceException (balance errors) * BinanceTimeoutException (timeout errors) - BinanceConfig class for customizable client behavior: * Configurable request timeout (default: 30s) * Max retries (default: 3) * Retry delay with exponential backoff * Rate limiting (default: 10 req/s) - Automatic retry logic with exponential backoff - Automatic rate limiting to prevent API violations - Request timeout configuration 🔧 Improvements: - Enhanced error messages with status codes and response bodies - Better network error handling with automatic retries - Improved documentation with comprehensive usage examples - Export exceptions for user error handling 📚 Documentation: - Enhanced library-level documentation - Added error handling examples - Updated CHANGELOG with detailed release notes This release significantly improves the developer experience with better error handling, automatic rate limiting, and access to all Binance APIs from a single unified interface.
Added 266 test cases across 9 test files (3,329 lines of test code): Test Coverage: - exceptions_test.dart: All 8 exception types with edge cases - binance_config_test.dart: Configuration and client initialization - spot_extended_test.dart: Extended Spot market integration tests - api_modules_test.dart: All 25+ API module structure tests - websockets_test.dart: WebSocket functionality and stream management - simulated_trading_extended_test.dart: Comprehensive simulated trading - simulated_convert_extended_test.dart: Comprehensive simulated convert - comprehensive_integration_test.dart: End-to-end integration tests - test/README.md: Comprehensive test documentation Test Categories: - 150+ unit tests (exceptions, config, structure, websockets) - 80+ integration tests (real API, simulated flows, end-to-end) - 30+ performance tests (benchmarks, concurrency, rate limiting) Features Tested: ✅ All exception types and error handling ✅ Client configuration and initialization ✅ All 25+ API modules accessibility ✅ Spot market data (server time, exchange info, order book, ticker) ✅ WebSocket connections and stream management ✅ Simulated trading (market/limit orders, status checking) ✅ Simulated convert (quotes, acceptance, status, history) ✅ Real API integration (public endpoints) ✅ Error scenarios and edge cases ✅ Concurrent request handling ✅ Performance benchmarks All tests are independent, require no real credentials (except optional WebSocket auth tests), and use public APIs or simulated endpoints.
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Major fixes based on comprehensive code review: Security Fixes: - Make API credentials private (_apiKey, _apiSecret) to prevent exposure - Remove public accessors that could leak sensitive data Reliability Fixes: - Add thread-safe locking to TokenBucket rate limiter - Add server time sync locking to prevent race conditions - Add bounded buffer (10k messages) to WebSocket to prevent memory leaks - Fix JSON parsing with proper FormatException handling for WAF/CDN errors - Complete dispose() method to clean up all resources Financial Precision Fixes: - Change order quantity/price from double to String for exact precision - Prevents floating-point rounding errors in financial calculations Parameter Validation: - Add comprehensive order parameter validation (side, type, required fields) - Validate LIMIT orders require price and timeInForce - Validate STOP orders require stopPrice - Normalize inputs (uppercase symbols, sides, types) Code Quality: - Remove dead code (Awesome class) - Improve error messages for debugging These fixes address CRITICAL and HIGH severity issues from: - Principal Test Engineer review (15 critical, 24 high) - Principal Developer #1 review (5 critical, 10 high) - Principal Developer #2 review (8 critical, 6 high)
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