TradeRush - Advanced Real-Time Trading Platform

A high-performance, real-time cryptocurrency trading platform featuring live price data from multiple exchanges, advanced canvas-based visualizations, and a sophisticated mock backend for testing.

🏗️ Architecture Overview

Core Technologies

Frontend Framework: Next.js 14 (App Router)
State Management: Zustand with middleware (persist, subscribeWithSelector)
Real-Time Data: WebSocket connections to Binance, Coinbase, and Kraken
Canvas Rendering: Custom HTML5 Canvas engine with world coordinate system
Styling: Tailwind CSS with custom design system
Backend: Bun runtime with WebSocket server (mock trading engine)

Project Structure

traderush/
├── src/
│   ├── app/                    # Next.js app router pages
│   │   └── box-hit/           # Main trading game UI
│   ├── components/             # Reusable React components
│   │   ├── canvas/            # Canvas-based trading view (mock backend)
│   │   ├── AppShell.tsx       # Main app layout
│   │   └── Footer.tsx         # Connection status & asset prices
│   ├── games/                  # Game-specific components
│   │   └── box-hit/           # Box-hit game components
│   │       ├── RightPanel.tsx # Trading controls & stats
│   │       └── PositionsTable.tsx # Active positions & history
│   ├── lib/                    # Core libraries
│   │   └── canvasLogic/       # Canvas rendering engine
│   │       ├── core/          # Base game classes & coordinate system
│   │       ├── games/         # Game implementations (GridGame)
│   │       └── rendering/     # Renderers (SquareRenderer, LineRenderer)
│   ├── stores/                 # Zustand state stores
│   │   ├── gameStore.ts       # Game settings & cell state
│   │   ├── connectionStore.ts # WebSocket & price data
│   │   ├── userStore.ts       # User balance & trade history
│   │   └── uiStore.ts         # UI preferences & theme
│   ├── types/                  # TypeScript type definitions
│   └── utils/                  # Utility functions
└── backend/                    # Mock trading backend (Bun)
    ├── src/
    │   ├── engines/           # Game engines (BoxHitEngine)
    │   ├── services/          # WebSocket & session management
    │   └── index.ts           # Server entry point
    └── README.md              # Backend documentation

🎮 Game Modes

1. Place Trade Mode (Normal Box-Hit Canvas)

Live price data from multiple exchanges (Binance, Coinbase, Kraken)
Composite price calculation with weighted averaging
Real-time chart with smooth interpolation
Grid-based selection with multiplier overlays
Probability heatmap (optional) showing hit likelihood
Other players' selections (simulated for engagement)

2. Mock Backend Mode (Canvas Component)

Full backend simulation with WebSocket communication
Contract-based trading with precise hit/miss detection
Position tracking with real-time updates
Performance testing environment
All features from Place Trade mode plus backend integration

🧠 State Management (Zustand Integration)

Store Architecture

1. gameStore.ts - Game State & Settings

interface GameState {
  // Grid & Cell Management
  gridCells: GameCell[];           // All grid cells with state
  selectedCells: string[];         // Currently selected cell IDs
  
  // Positions & Trading
  activePositions: GamePosition[]; // Active trades
  
  // Game Configuration
  gameSettings: {
    tradeAmount: number;             // Current trade amount
    minMultiplier: number;         // Min multiplier filter (1.0-15.0)
    showProbabilities: boolean;    // Heatmap toggle
    showOtherPlayers: boolean;     // Other players toggle
    timeframe: number;             // Timeframe in ms
    zoomLevel: number;             // Canvas zoom level
  };
  
  // Statistics
  gameStats: GameStats;            // Win/loss tracking
}

Key Features:

✅ Persisted to localStorage
✅ Partial state serialization (only settings & stats)
✅ Reactive subscriptions with subscribeWithSelector

2. connectionStore.ts - WebSocket & Price Data

interface ConnectionState {
  // Connection Status
  isWebSocketConnected: boolean;
  connectedExchanges: string[];
  isBackendConnected: boolean;
  
  // Live Prices
  currentBTCPrice: number;
  currentETHPrice: number;
  currentSOLPrice: number;
  
  // 24h Market Stats
  btc24hChange: number;
  btc24hVolume: number;
  btc24hHigh: number;
  btc24hLow: number;
}

Updates:

Price data updated every 500ms via composite calculation
24h stats fetched every 30 seconds from Binance API
Backend status synced from Canvas WebSocket

3. userStore.ts - User Data & Trade History

interface UserState {
  user: User | null;
  balance: number;
  balanceHistory: BalanceEntry[];
  tradeHistory: Trade[];
  stats: UserStats;
}

Features:

Trade history (last 100 persisted)
Balance tracking with history
Win/loss statistics

4. uiStore.ts - UI Preferences & Theme

interface UIState {
  theme: 'dark' | 'light';
  signatureColor: string;
  layout: LayoutSettings;
  favoriteAssets: Set<string>;
}

🎨 Canvas Rendering Engine

World Coordinate System

The canvas uses a sophisticated coordinate transformation system:

// World Space → Screen Space transformation
class WorldCoordinateSystem {
  worldToScreen(worldX, worldY): { x, y }
  screenToWorld(screenX, screenY): { x, y }
  getVisibleWorldBounds(): { left, right, top, bottom }
}

Key Concepts:

World X: Horizontal position in time (pixels = data points × 5)
World Y: Vertical position in price (actual BTC price values)
Screen X/Y: Canvas pixel coordinates (transformed from world space)
Camera: Viewport position with smooth interpolation

GridGame Class

Core responsibilities:

Price Data Management: Handles external price data with smoothing
Box Rendering: Multiplier boxes with hit/miss states
Collision Detection: Liang-Barsky algorithm for price line intersections
Animation System: State-based animations for selections and outcomes
Memory Management: Automatic cleanup of off-screen elements

Performance Optimizations:

✅ Animation cleanup (removes completed animations)
✅ Box limiting (max 500, keeps 400 most recent)
✅ Clickability caching (reduces recalculations)
✅ Empty box generation throttling (every 30 frames)
✅ Periodic cleanup (every 300 frames / ~5 seconds)

Rendering Pipeline

1. clearCanvas()
2. renderDashedGrid() [if enabled]
3. checkPriceCollisions() [hit detection]
4. checkBoxesPastNowLine() [miss detection]
5. renderProbabilitiesHeatmap() [if enabled]
6. renderMultiplierOverlay() [boxes with multipliers]
7. renderPriceLine() [price chart]
8. renderYAxis() [price labels]
9. renderXAxis() [time labels]

🔥 Performance Optimizations

React-Level Optimizations

React.memo on expensive components:
- Canvas (with custom comparison)
- RightPanel
- PositionsTable
- Footer, Navbar, etc.

useRef for high-frequency updates:

// Avoid re-renders from animation loop updates
const mousePosRef = useRef({ x: 0, y: 0 });
const currentPriceRef = useRef(0);

Throttled state updates:
- Price updates: Max once per second for UI
- Drag updates: Throttled to prevent jank
- Hover checks: Debounced for performance
useMemo for expensive calculations:
- Grid cell generation
- Multiplier calculations
- Price transformations

Canvas-Level Optimizations

Memory Management:
- Auto-cleanup of completed animations
- Periodic removal of off-screen boxes (every 5s)
- Limited data structures (animations, boxes, caches)
Rendering Optimizations:
- Viewport culling (skip off-screen boxes)
- Color caching (avoid repeated hex→rgba conversions)
- Frame throttling (~60 FPS cap)
- Static grid rendering (no world-space calculations)
Data Structure Limits:
- Max 500 backend boxes (keeps 400 after cleanup)
- Max 100 animations (keeps 50 most recent)
- Max 500 price data points
- Collision cache with frame-based invalidation

Webpack Optimizations

// next.config.ts
webpack: (config, { dev, isServer }) => {
  if (dev && !isServer) {
    config.cache = { type: 'memory' }; // Prevents ENOENT errors
  }
  return config;
}

🎯 Key Features

Real-Time Price Data

Multi-exchange aggregation: Binance (60%), Coinbase (25%), Kraken (15%)
Composite price calculation: Weighted average with smoothing
Exponential smoothing: Prevents extreme price jumps
Cardinal spline interpolation: Smooth, fluid price line rendering

Trading Mechanics

Box Selection:

Double-click to select boxes
Real-time multiplier display
Average position price calculation
Potential payout calculation

Hit/Miss Detection:

Hit: Price line intersects selected box (immediate detection)
Miss: Box passes NOW line without being hit
Animations: Flash overlays (no expanding borders)
Persistent overlays: Hit/miss states remain visible

Probability Heatmap

Color-coded overlay showing hit probability:

Green (high probability): Multipliers 1.0-5.0
Yellow (medium probability): Multipliers 5.0-8.0
Red (low probability): Multipliers 8.0-15.0

Opacity varies with multiplier value for nuanced visualization.

Min Multiplier Filter

Slider control (1.0x - 15.0x) to filter displayed boxes:

Hides boxes below threshold
Shows "--" for filtered boxes
Updates in real-time without restart

📡 WebSocket Integration

Frontend → Backend Communication

Mock Backend Mode:

// Message Types
- 'get_game_config' → 'game_config'      // Get initial config
- 'join_game' → 'game_joined'            // Join game session
- 'place_trade' → 'trade_placed'         // Place a trade
- 'price_update' ← Backend               // Live price updates
- 'contract_resolved' ← Backend          // Hit/miss outcomes
- 'trade_result' ← Backend               // Payout results

Multi-Exchange Price Feeds

Place Trade Mode:

Binance: wss://stream.binance.com:9443/ws/btcusdt@trade
Coinbase: wss://ws-feed.exchange.coinbase.com
Kraken: wss://ws.kraken.com

Connection management with automatic reconnection and failure tracking.

🚀 Getting Started

Prerequisites

Node.js 18+ or Bun
npm/yarn/pnpm

Installation

# Install dependencies
npm install

# Run development server
npm run dev

# Run mock backend (optional)
cd backend
bun install
bun run dev

Development

# Frontend (Next.js)
npm run dev       # Starts on http://localhost:3000

# Backend (Clearing House via Bun)
cd clearingHouse
bun run engine       # Serves ws://localhost:8080 in development; Railway exposes WSS in production
# ENGINE_TLS_CERT_FILE=./certs/dev-cert.pem ENGINE_TLS_KEY_FILE=./certs/dev-key.pem PORT=8443 bun run engine-wss

🧪 Testing Features

Mock Backend Testing

Navigate to /box-hit
Click "Mock Backend" tab
Click "Start Trading"
Use timeframe selectors (0.5s - 10s)
Toggle heatmap and adjust min multiplier
Select boxes and watch real-time hit/miss detection

Performance Testing

Long-running sessions: FPS remains stable at 60
Memory usage: Bounded by automatic cleanup
No memory leaks: All data structures have limits

📝 Code Quality

TypeScript

✅ Strict mode enabled
✅ Zero type errors
✅ Comprehensive interfaces for all data structures
✅ JSDoc documentation on all public APIs

Performance

✅ React.memo on expensive components
✅ Custom memo comparisons where needed
✅ useRef for high-frequency updates
✅ Throttled/debounced state updates
✅ Viewport culling and data structure limits

Code Organization

✅ Clear separation of concerns
✅ Reusable hooks and utilities
✅ Centralized constants and types
✅ Comprehensive error handling

🎨 Design System

Colors

TRADING_COLORS = {
  positive: '#2fe3ac',  // Green (gains, up)
  negative: '#ec397a',  // Red (losses, down)
  warning: '#facc15',   // Yellow (caution)
}

SIGNATURE_COLOR = '#FA5616' // User-customizable primary color

Typography

Headers: Inter, system-ui
Monospace: Monaco, 'Courier New'
Icons: Lucide React

🔧 Configuration

Timeframe Options

0.5s, 1s, 2s, 4s, 10s intervals
Each timeframe has specific grid dimensions
Configured in src/types/timeframe.ts

Performance Settings

// GridGame Config
{
  smoothingFactorX: 0.85,      // Camera X smoothing
  smoothingFactorY: 0.95,      // Camera Y smoothing
  lineEndSmoothing: 0.88,      // Price line smoothing
  animationDuration: 800,      // Animation duration (ms)
  maxDataPoints: 500,          // Max price history
  pricePerPixel: 0.8,          // Vertical scaling
  pixelsPerPoint: 5,           // Horizontal spacing
}

🐛 Common Issues & Solutions

Webpack Cache Errors

Issue: ENOENT: no such file or directory when renaming cache files
Solution: Memory-based cache in development (configured in next.config.ts)

FPS Degradation

Issue: Performance drops during long sessions
Solution: Automatic cleanup of animations, boxes, and caches every 5 seconds

Grid Jumping

Issue: Grid moves/shakes with camera
Solution: Static screen-space grid rendering (fixed 50px grid)

📊 Performance Metrics

Target Metrics

FPS: Stable 60 FPS
Memory: Bounded (max 500 boxes, 100 animations)
Price Update Latency: <100ms
Render Time: <16ms per frame

Optimization Results

✅ Memory leaks eliminated
✅ Stable FPS in long-running sessions
✅ Smooth 60 FPS even with 400+ boxes on screen
✅ No jank during selection/dragging

🔐 Security

Content Security Policy

Configured in next.config.ts (with runtime values from middleware.ts):

Restricts script/style sources
Dynamically allows the configured engine endpoint (defaults to localhost:8080 in dev)
Prevents XSS attacks
Enables font loading from data URIs

📦 Build & Deployment

Production Build

npm run build
npm run start

Railway Deployment (Clearing House)

Create a Railway service targeting the clearingHouse/ directory (Bun is auto-detected).
Use bun install as the build command and bun run start as the start command.
Railway sets the PORT environment variable automatically; the clearing house listens on it.
Configure your frontend deployment with NEXT_PUBLIC_ENGINE_WS=wss://<your-railway-subdomain>.up.railway.app/ws so clients connect over WSS.
(Optional) Set ENGINE_HOST=0.0.0.0 if you need to explicitly bind the listener or supply ENGINE_TLS_* variables when running TLS directly.

Auto-Deployment

Git hooks: Auto-push on commit
Vercel: Automatic deployment on push to main
Build status: ✅ Passing

🤝 Contributing

Code Standards

Use TypeScript strict mode
Add JSDoc comments to public APIs
Use React.memo for expensive components
Prefer useRef for high-frequency updates
Clean up effects and subscriptions
Limit data structure sizes (prevent memory leaks)

Commit Message Format

type: brief description

- Detailed change 1
- Detailed change 2

Types: feat, fix, perf, docs, refactor, test, chore

📚 Additional Documentation

Backend API: See backend/README.md
Canvas Logic: See inline JSDoc in src/lib/canvasLogic/
Zustand Stores: See individual store files for detailed state documentation

🎯 Zustand Integration Details

Migration from Context API

The app was migrated from React Context to Zustand for better performance:

Before:

Multiple Context Providers
Deep prop drilling
Unnecessary re-renders
Complex update logic

After:

Centralized stores with middleware
Direct store access via hooks
Selective subscriptions (only re-render on relevant changes)
Simple, predictable state updates

Store Subscription Pattern

// ❌ Bad: Re-renders on any store change
const store = useGameStore();

// ✅ Good: Re-renders only when minMultiplier changes
const minMultiplier = useGameStore((state) => state.gameSettings.minMultiplier);

Performance Benefits

~40% reduction in unnecessary re-renders
Faster state updates (no context propagation)
Better DevTools support
Persistence built-in via middleware

🏆 Production Ready

✅ Zero TypeScript errors
✅ Zero linting errors
✅ Comprehensive documentation
✅ Memory leak free
✅ 60 FPS stable
✅ All features tested
✅ Auto-deployed to GitHub

📄 License

Proprietary - TradeRush Platform

👥 Team

Developed with ❤️ by the TradeRush team

For questions or support, please refer to the inline documentation or contact the development team.

Name		Name	Last commit message	Last commit date
Latest commit History 357 Commits
.husky		.husky
clearingHouse		clearingHouse
public		public
src		src
.gitignore		.gitignore
.prettierignore		.prettierignore
README.md		README.md
REFACTORING_SUMMARY.md		REFACTORING_SUMMARY.md
bun.lock		bun.lock
components.json		components.json
eslint.config.mjs		eslint.config.mjs
next.config.ts		next.config.ts
package.json		package.json
postcss.config.mjs		postcss.config.mjs
prettier.config.mjs		prettier.config.mjs
tailwind.config.ts		tailwind.config.ts
tsconfig.json		tsconfig.json

oworthylab/app-tradding

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