# SushiSwap Integration Plan

## Overview

This document outlines the implementation plan for SushiSwap exchange support in the MEV bot. SushiSwap is largely compatible with Uniswap V2 but has its own contracts and features.

## Contract Addresses

### Ethereum Mainnet
- Router: `0xd9e1cE17f2641f24aE83637ab66a2cca9C378B9F`
- Factory: `0xC0AEe478e3658e2610c5F7A4A2E1777cE9e4f2Ac`

### Other Networks
- Polygon: Router `0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506`
- Arbitrum: Router `0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506`
- Avalanche: Router `0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506`

## Core Functions

### Swap Functions
- `swapExactTokensForTokens`
- `swapTokensForExactTokens`
- `swapExactETHForTokens`
- `swapTokensForExactETH`
- `getAmountsOut`
- `getAmountsIn`

### Liquidity Functions
- `addLiquidity`
- `addLiquidityETH`
- `removeLiquidity`
- `removeLiquidityETH`

### Sushi-specific Features
- Onsen (yield farming) integration
- Kashi (lending) integration
- SushiBar (staking) integration
- MasterChef (liquidity mining) integration
- BentoBox (yield aggregator)
- Kashi V3 (next-gen lending)

## Implementation Steps

1. Create SushiSwap struct implementing the Exchange interface
2. Configure multiple network support
3. Implement standard Uniswap V2 compatible functions
4. Add Sushi-specific reward tracking
5. Implement SushiBar staking functions
6. Add MasterChef integration for liquidity mining
7. Implement cross-chain liquidity tracking

## Pricing Mechanisms

### Standard AMM Pricing
- Use reserves to calculate price impact
- Apply standard constant product formula: x * y = k
- Consider 0.3% swap fee in calculations

### Special Considerations
- Handle Sushi reward calculations
- Consider MasterChef incentive effects on liquidity
- Track special pools with additional rewards

## Testing Plan

1. Unit tests for all swap functions
2. Cross-network functionality verification
3. Sushi reward tracking validation
4. Liquidity mining calculations
5. Integration tests with mainnet fork
6. Edge case testing (zero amounts, max amounts)
7. Price accuracy verification

## Performance Considerations

- Leverage existing Uniswap V2 knowledge for faster implementation
- Optimize for multi-chain deployment
- Cache frequently accessed pool information
- Batch operations to reduce transaction costs
- Consider SushiBar staking as liquidity source

## Security Considerations

- Validate all input parameters
- Implement proper slippage protection
- Sanitize data from external contracts
- Verify contract addresses on different chains
- Handle chain-specific security requirements

## Integration with MEV Bot

- Identify SushiSwap-specific arbitrage opportunities
- Monitor Onsen pools for profitable swaps
- Track Sushi rewards in opportunity evaluation
- Include MasterChef incentives in profitability calculations
- Coordinate with other exchanges for cross-exchange arbitrage