feat: Implement comprehensive Market Manager with database and logging

- Add complete Market Manager package with in-memory storage and CRUD operations
- Implement arbitrage detection with profit calculations and thresholds
- Add database adapter with PostgreSQL schema for persistence
- Create comprehensive logging system with specialized log files
- Add detailed documentation and implementation plans
- Include example application and comprehensive test suite
- Update Makefile with market manager build targets
- Add check-implementations command for verification
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Krypto Kajun
2025-09-18 03:52:33 -05:00
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# Market Manager/BUILDER Planning Document
## Overview
This document outlines the plan for implementing a comprehensive Market Manager/BUILDER system for the MEV bot. The system will handle market data collection, storage, and analysis to identify arbitrage opportunities across different DEX protocols on Arbitrum.
## Core Requirements
### Data Structure
```go
type Market struct {
Factory common.Address // DEX factory contract address
PoolAddress common.Address // Pool contract address
Token0 common.Address // First token in pair
Token1 common.Address // Second token in pair
Fee uint32 // Pool fee (e.g., 500 for 0.05%)
Ticker string // Formatted as <symbol>_<symbol> (e.g., "WETH_USDC")
RawTicker string // Formatted as <token0>_<token1> (e.g., "0x..._0x...")
Key string // <keccak256ofToken0Token1FeeFactoryPoolAddress>
}
// Market storage structure
type Markets map[string]map[string]*Market // map[rawTicker]map[marketKey]*Market
```
### Core Functionality
1. **Market Data Collection**
- Parse swap and liquidity events from Arbitrum sequencer
- Store data with "possible" status initially
- Within 500ms, verify transaction existence on-chain
- Update data with confirmed on-chain values
2. **Market Data Storage**
- Cache market data in memory for fast access
- Persist data to database for historical analysis
- Support data versioning (sequencer vs. on-chain)
3. **Arbitrage Opportunity Detection**
- Iterate through markets by rawTicker
- For each rawTicker, examine all associated markets
- Sort by price (least to highest)
- Check each combination for arbitrage opportunities
- Validate profit exceeds threshold (fee1 + fee0 + minArbPct)
## Implementation Phases
### Phase 1: Market Data Structure and Storage (Week 1)
#### 1.1 Core Data Structures
- [ ] Implement Market struct with all required fields
- [ ] Implement Markets type (map[rawTicker]map[marketKey]*Market)
- [ ] Add helper functions for key generation (keccak256 hashing)
- [ ] Implement serialization/deserialization for database storage
#### 1.2 Market Manager Core
- [ ] Create MarketManager interface
- [ ] Implement in-memory market storage
- [ ] Add market CRUD operations (Create, Read, Update, Delete)
- [ ] Implement market lookup by various keys (ticker, rawTicker, key)
#### 1.3 Database Integration
- [ ] Design database schema for market data persistence
- [ ] Implement database adapter for market storage
- [ ] Add data versioning support (sequencer vs. on-chain)
- [ ] Implement batch operations for efficient data handling
### Phase 2: Data Collection and Verification (Week 2)
#### 2.1 Event Parsing Enhancement
- [ ] Extend event parser to handle market-specific data
- [ ] Implement swap event parsing with full liquidity data
- [ ] Add liquidity event parsing (add/remove liquidity)
- [ ] Implement new pool event parsing
#### 2.2 Sequencer Data Processing
- [ ] Implement sequencer data collection pipeline
- [ ] Add "possible" status marking for new market data
- [ ] Implement timestamp tracking for verification scheduling
- [ ] Add data validation before initial storage
#### 2.3 On-chain Verification
- [ ] Implement verification scheduler (500ms window)
- [ ] Add Ethereum client integration for transaction verification
- [ ] Implement on-chain data retrieval and comparison
- [ ] Update market data with confirmed on-chain values
### Phase 3: Arbitrage Detection Engine (Week 3)
#### 3.1 Market Iteration and Sorting
- [ ] Implement market iteration by rawTicker
- [ ] Add price sorting functionality (least to highest)
- [ ] Implement efficient market combination generation
- [ ] Add performance optimization for large market sets
#### 3.2 Profit Calculation
- [ ] Implement fee calculation for different pool types
- [ ] Add price impact modeling for large trades
- [ ] Implement profit threshold validation
- [ ] Add gas cost estimation for arbitrage transactions
#### 3.3 Arbitrage Validation
- [ ] Implement arbitrage opportunity detection algorithm
- [ ] Add multi-hop arbitrage support
- [ ] Implement risk assessment for each opportunity
- [ ] Add opportunity scoring and ranking
### Phase 4: Performance Optimization and Testing (Week 4)
#### 4.1 Caching and Performance
- [ ] Implement intelligent caching strategies
- [ ] Add cache warming for frequently accessed markets
- [ ] Implement cache expiration and cleanup
- [ ] Optimize memory usage for large market datasets
#### 4.2 Testing and Validation
- [ ] Implement unit tests for all core functionality
- [ ] Add integration tests with mock blockchain data
- [ ] Implement performance benchmarks
- [ ] Add stress testing for high-volume scenarios
#### 4.3 Monitoring and Observability
- [ ] Add metrics collection for market operations
- [ ] Implement logging for key events and errors
- [ ] Add health checks for market data freshness
- [ ] Implement alerting for critical system issues
## Technical Considerations
### Data Consistency
- Handle race conditions between sequencer data and on-chain verification
- Implement transactional updates for market data
- Add conflict resolution for concurrent data modifications
### Scalability
- Design for horizontal scaling across multiple market segments
- Implement sharding for large market datasets
- Add load balancing for data processing tasks
### Security
- Validate all incoming market data
- Implement rate limiting for data collection
- Add authentication for market data access
- Implement audit logging for all market operations
## Dependencies
1. Existing event parsing infrastructure
2. Ethereum client libraries for on-chain verification
3. Database system for persistence
4. Cache system for in-memory storage
## Success Metrics
- Market data processing latency < 100ms
- On-chain verification success rate > 99%
- Arbitrage detection accuracy > 95%
- System uptime > 99.9%
- Memory usage < 2GB for 10,000 markets
## Risk Mitigation
1. **Data Inconsistency**: Implement robust conflict resolution
2. **Performance Issues**: Add caching and optimize algorithms
3. **Network Failures**: Implement retry mechanisms with exponential backoff
4. **Security Breaches**: Add comprehensive input validation and authentication
## Timeline
- Week 1: Market Data Structure and Storage
- Week 2: Data Collection and Verification
- Week 3: Arbitrage Detection Engine
- Week 4: Performance Optimization and Testing