850223a953
- Added comprehensive bounds checking to prevent buffer overruns in multicall parsing - Implemented graduated validation system (Strict/Moderate/Permissive) to reduce false positives - Added LRU caching system for address validation with 10-minute TTL - Enhanced ABI decoder with missing Universal Router and Arbitrum-specific DEX signatures - Fixed duplicate function declarations and import conflicts across multiple files - Added error recovery mechanisms with multiple fallback strategies - Updated tests to handle new validation behavior for suspicious addresses - Fixed parser test expectations for improved validation system - Applied gofmt formatting fixes to ensure code style compliance - Fixed mutex copying issues in monitoring package by introducing MetricsSnapshot - Resolved critical security vulnerabilities in heuristic address extraction - Progress: Updated TODO audit from 10% to 35% complete 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
111 lines
3.3 KiB
Markdown
111 lines
3.3 KiB
Markdown
# PancakeSwap Integration Plan
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## Overview
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This document outlines the implementation plan for PancakeSwap exchange support in the MEV bot. PancakeSwap is a decentralized exchange running on Binance Smart Chain, offering similar functionality to Uniswap but with BNB chain-specific features.
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## Contract Architecture
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### Core Contracts
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- Router: `0x10ED43C718612782E9E672E01bCc53Bb3a3b6B2e` (V2), `0x13f4EA83D0bd40E75C8222255bc855a9243358F6` (V3)
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- Factory: `0xcA143Ce32Fe78f1f7019d7d551a6402fC535aa17` (V2), `0x0BFbCF9fa4f9C56B0F40a6C1cA9bC67Ec9872923` (V3)
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- MasterChef: `0xa5f8C5Dbd5F286960b9d90548680aE5ebFf07652` (V2 farming)
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- MasterChefV3: `0x556B9306565093C852F783C116e951053Ac0C548`
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### Unique Features
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- Syrup Pools (single asset staking)
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- Prediction markets
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- Lottery
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- NFT marketplace integration
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## Core Functions
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### V2 Swap Functions
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- `swapExactTokensForTokens`
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- `swapTokensForExactTokens`
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- `swapExactBNBForTokens`
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- `swapTokensForExactBNB`
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- `getAmountsOut`
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- `getAmountsIn`
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### V3 Swap Functions
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- `exactInputSingle`
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- `exactOutputSingle`
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- `exactInput`
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- `exactOutput`
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### Liquidity Functions
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- `addLiquidity`
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- `addLiquidityBNB`
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- `removeLiquidity`
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- `removeLiquidityBNB`
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### Farming Functions
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- `deposit` (to MasterChef)
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- `withdraw` (from MasterChef)
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- `pendingCake` (pending rewards)
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## Implementation Steps
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1. Create PancakeSwap struct implementing the Exchange interface
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2. Implement both V2 and V3 contract support
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3. Handle BNB-specific swap functions
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4. Implement MasterChef integration for yield farming
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5. Add Syrup Pool support
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6. Create BSC-specific gas estimation
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7. Implement PCS-specific routing logic
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8. Add support for PCS tokens and farms
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## Pricing Mechanisms
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### V2 Pricing
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- Standard constant product AMM formula
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- 0.25% swap fee (compared to 0.3% on Uniswap)
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- Use reserves to calculate price impact
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### V3 Pricing
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- Concentrated liquidity model
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- Tick-based pricing mechanism
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- Variable swap fees based on pool (0.01%, 0.05%, 0.25%, 1%)
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### PCS-Specific Considerations
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- Lower standard swap fees (0.25% vs 0.3%)
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- BNB integration for direct swaps
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- Farming reward tracking in profitability calculations
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## Testing Plan
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1. Unit tests for V2 and V3 swap functions
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2. BNB-specific swap testing
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3. MasterChef integration testing
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4. Syrup Pool functionality verification
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5. Cross-chain arbitrage opportunity testing
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6. Edge case testing (zero amounts, max amounts)
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7. Price accuracy verification
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8. Gas optimization testing on BSC
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## Performance Considerations
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- BSC's faster block times (compared to Ethereum)
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- Lower gas costs for more frequent operations
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- Efficient routing between V2 and V3 pools
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- Cache frequently accessed pool information
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- Batch operations to reduce transaction costs
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## Security Considerations
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- Validate BSC-specific contract addresses
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- Implement proper slippage protection
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- Handle BSC's different security model
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- Verify farm and pool parameters
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- Sanitize data from external PCS contracts
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## Integration with MEV Bot
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- Identify PCS-specific arbitrage opportunities
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- Monitor V2 and V3 pools for profitable swaps
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- Track farming rewards in profitability calculations
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- Include Syrup Pools in yield strategies
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- Coordinate with other exchanges for cross-chain arbitrage
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- Consider CAKE token incentives in trade decisions
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- Monitor new farm launches for early entry opportunities |