# Avantis Smart Contract Integration Summary

This document summarizes the comprehensive integration of Avantis Protocol smart contracts into the TypeScript SDK.

## What Was Implemented

### 1. Contract Addresses (src/config.ts)
✅ Updated with real Base mainnet addresses:
- TradingStorage: `0x8a311D7048c35985aa31C131B9A13e03a5f7422d`
- PairStorage: `0x5db3772136e5557EFE028Db05EE95C84D76faEC4`
- PairInfos: `0x81F22d0Cc22977c91bEfE648C9fddf1f2bd977e5`
- PriceAggregator: `0x64e2625621970F8cfA17B294670d61CB883dA511`
- USDC: `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`
- Trading: `0x44914408af82bC9983bbb330e3578E1105e11d4e`
- Multicall: `0xb7125506Ff25211c4C51DFD8DdED00BE6Fa8Cbf7`
- Referral: `0x1A110bBA13A1f16cCa4b79758BD39290f29De82D`

### 2. Contract ABIs (src/abis.ts)
✅ Created comprehensive ABIs for all contracts:
- ERC20_ABI (for USDC)
- TRADING_ABI (trading operations + delegation)
- TRADING_STORAGE_ABI (trade storage queries)
- PAIR_STORAGE_ABI (pair information)
- PAIR_INFOS_ABI (fees, impacts, loss protection)
- PRICE_AGGREGATOR_ABI (fee calculations)
- REFERRAL_ABI (referral system)
- MULTICALL_ABI (batch calls)

### 3. Type Definitions (src/types.ts)
✅ Added new types for smart contract interactions:
- `Trade` - Complete trade information struct
- `TradeInfo` - Additional trade metadata
- `OpenLimitOrder` - Limit order information
- `ReferralTier` - Referral tier details
- `ReferralDiscount` - Discount calculation results

✅ Added decimal conversion helpers:
- `fromBlockchain12()` / `toBlockchain12()` - For 12 decimal precision (fees)
- `fromBlockchain18()` / `toBlockchain18()` - For 18 decimal precision (ETH/execution fees)

### 4. Trading Operations Module (src/rpc/trading_operations.ts)
✅ Complete trading functionality:
- `openTrade()` - Open new positions with market/limit orders
- `closeTradeMarket()` - Close positions at market price
- `updateMargin()` - Add or remove collateral from positions
- `updateTpAndSl()` - Update take profit and stop loss
- `cancelOpenLimitOrder()` - Cancel pending limit orders
- `getOpenTrade()` - Query trade information
- `getOpenTradeInfo()` - Get additional trade metadata
- `getOpenTradesCount()` - Count open trades for a trader
- `getOpenLimitOrder()` - Get limit order details
- `getExecutionFee()` - Get current execution fee

### 5. Delegation Module (src/rpc/delegation.ts)
✅ Full delegation system:
- `setDelegate()` - Authorize an address to trade on your behalf
- `removeDelegate()` - Revoke delegation
- `getDelegateFor()` - Check who is delegated for an address
- `delegatedAction()` - Execute trades as delegate
- Helper methods to encode different actions for delegation:
  - `encodeOpenTrade()`
  - `encodeCloseTradeMarket()`
  - `encodeUpdateTpAndSl()`
  - `encodeUpdateMargin()`

### 6. Pair Info Queries Module (src/rpc/pair_info_queries.ts)
✅ Advanced market data queries:
- `getPriceImpactSpread()` - Calculate price impact for position
- `getSkewImpactSpread()` - Calculate skew impact
- `getPriceImpactP()` - Get total price impact percentage
- `getOpenFeeUsdc()` - Calculate opening fee in USDC
- `getOpenFeeP()` - Get opening fee percentage
- `getPairMarginFeeP()` - Get margin fee for pair
- `getLossProtectionTier()` - Determine loss protection tier
- `getLossProtectionTierForSize()` - Get tier for position size
- `getLossProtectionP()` - Get loss protection percentage
- `getOnePercentDepthAboveUsdc()` - Get liquidity depth (longs)
- `getOnePercentDepthBelowUsdc()` - Get liquidity depth (shorts)
- `getDepth()` - Get both depth values at once

### 7. Referral Operations Module (src/rpc/referral_operations.ts)
✅ Complete referral system:
- `setReferralCode()` - Set your referral code
- `getTraderReferralInfo()` - Get referral code and referrer
- `getReferrerTier()` - Get tier level for referrer
- `getTierInfo()` - Get tier discount and rebate percentages
- `getTraderReferralDiscount()` - Calculate discount for a fee
- `hasReferralCode()` - Check if user has a code set
- `getEffectiveFee()` - Calculate fee after discount

### 8. Multicall Module (src/rpc/multicall.ts)
✅ Batch call functionality:
- `aggregate()` - Execute multiple calls in one transaction
- `createCall()` - Helper to create call data
- `decodeResult()` - Helper to decode results
- `aggregateAndDecode()` - Aggregate and auto-decode results
- Specialized batch methods:
  - `batchGetOpenTrades()` - Read multiple trades at once
  - `batchGetOpenTradesInfo()` - Read multiple trade infos
  - `batchGetPairs()` - Read multiple pair configs

### 9. Updated Main Client (src/client.ts)
✅ Integrated all new modules:
- Added public properties for all new RPC modules
- Updated `setSigner()` to propagate signer to all modules
- Initialized all modules in constructor

### 10. Examples (examples/)
✅ Created comprehensive examples:
- `trading-operations.ts` - Opening, closing, managing trades
- `delegation-and-referrals.ts` - Delegation and referral features
- `advanced-queries.ts` - Market data queries and multicall usage

### 11. Documentation (README.md)
✅ Completely updated documentation:
- Quick start guide
- Contract addresses reference
- Usage examples for all modules
- Decimal precision guide
- Error handling best practices

## Decimal Precision Reference

The SDK handles multiple decimal precisions correctly:

| Type | Decimals | Example | Conversion |
|------|----------|---------|------------|
| USDC amounts | 6 | 100 USDC → 100000000 | `toBlockchain6()` / `fromBlockchain6()` |
| Prices | 10 | $50,000 → 500000000000000 | `toBlockchain10()` / `fromBlockchain10()` |
| Leverage/% | 10 | 10x → 100000000000 | `toBlockchain10()` / `fromBlockchain10()` |
| Fees | 12 | 0.1% → 1000000000 | `toBlockchain12()` / `fromBlockchain12()` |
| ETH/Gas | 18 | 0.0003 ETH → 300000000000000 | `toBlockchain18()` / `fromBlockchain18()` |

## Usage Quick Reference

### Opening a Trade
```typescript
const client = new TraderClient('https://mainnet.base.org');
client.setLocalSigner(privateKey);

const trade = {
  trader: await client.signer.getAddress(),
  pairIndex: 0,
  index: 0,
  initialPosToken: 100,
  positionSizeUSDC: 100,
  openPrice: 50000,
  buy: true,
  leverage: 10,
  tp: 55000,
  sl: 48000,
};

await client.tradingOps.openTrade(trade, TradeInputOrderType.MARKET, 1);
```

### Setting Up Delegation
```typescript
// Owner sets delegate
await client.delegation.setDelegate(delegateAddress);

// Delegate executes trade
const callData = client.delegation.encodeUpdateTpAndSl(0, 0, newSl, newTp, []);
await client.delegation.delegatedAction(ownerAddress, callData, 1n);
```

### Querying Market Data
```typescript
// Get price impact
const impact = await client.pairInfoQueries.getPriceImpactSpread(0, true, 1000, true);

// Get fees
const fee = await client.pairInfoQueries.getOpenFeeUsdc(0, 1000, true);

// Get loss protection
const tier = await client.pairInfoQueries.getLossProtectionTierForSize(0, 1000);
```

### Using Multicall
```typescript
const trades = await client.multicall.batchGetOpenTrades(
  tradingStorage,
  trader,
  0,
  [0, 1, 2]
);
```

## Testing Checklist

Before using in production, test:

- [ ] Opening trades with different order types
- [ ] Closing trades partially and fully
- [ ] Updating TP/SL levels
- [ ] Adding and removing margin
- [ ] Setting and using delegation
- [ ] Setting referral codes
- [ ] Querying market data
- [ ] Using multicall for batched reads

## Next Steps

1. **Testing**: Run examples with testnet funds
2. **Integration**: Integrate SDK into your application
3. **Error Handling**: Add comprehensive error handling
4. **Monitoring**: Set up transaction monitoring
5. **Production**: Deploy with real funds after thorough testing

## Support

For issues or questions:
- GitHub: https://github.com/anthropics/claude-code/issues
- Docs: Check the README.md and example files

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**Build Status**: ✅ All modules compiled successfully
**Last Updated**: November 28, 2025