# Testnet Deployment Guide

**Date**: 2026-01-24  
**Status**: Ready for Testnet Deployment

---

## 📋 **Pre-Deployment Checklist**

### **1. Environment Setup**
- [x] All contracts compile successfully
- [x] Test suites created and passing
- [x] Deployment scripts ready
- [ ] Testnet RPC endpoints configured
- [ ] Testnet accounts funded
- [ ] Environment variables set

### **2. Configuration**
- [ ] Testnet chain IDs configured
- [ ] Testnet contract addresses documented
- [ ] Testnet CCIP router addresses
- [ ] Testnet LINK token addresses
- [ ] Testnet WETH addresses

### **3. Security**
- [ ] Security checklist reviewed
- [ ] Access control verified
- [ ] Upgrade paths tested
- [ ] Emergency procedures documented

---

## 🚀 **Deployment Steps**

### **Step 1: Deploy Core Infrastructure**

```bash
# Set environment variables
export PRIVATE_KEY="your_testnet_private_key"
export RPC_URL="https://sepolia.infura.io/v3/YOUR_KEY" # Example testnet

# Deploy Universal Asset Registry and Chain Registry
forge script script/deploy/01_DeployCore.s.sol:DeployCore \
  --rpc-url $RPC_URL \
  --broadcast \
  --verify \
  --etherscan-api-key $ETHERSCAN_API_KEY
```

### **Step 2: Deploy Vault System**

```bash
# Deploy complete vault system
forge script script/deploy/vault/DeployVaultSystem.s.sol:DeployVaultSystem \
  --rpc-url $RPC_URL \
  --broadcast \
  --verify \
  --etherscan-api-key $ETHERSCAN_API_KEY
```

**Expected Output**:
- RegulatedEntityRegistry
- XAU Oracle
- Rate Accrual
- Ledger
- Liquidation Module
- Collateral Adapter
- eMoney Join
- Vault Factory

### **Step 3: Deploy ISO-4217W Token System**

```bash
# Set additional environment variables
export CUSTODIAN_ADDRESS="0x..."
export RESERVE_MANAGER_ADDRESS="0x..."
export RESERVE_TRANSMITTER_1="0x..."
export RESERVE_TRANSMITTER_2="0x..."

# Deploy ISO-4217W system
forge script script/deploy/iso4217w/DeployISO4217WSystem.s.sol:DeployISO4217WSystem \
  --rpc-url $RPC_URL \
  --broadcast \
  --verify \
  --etherscan-api-key $ETHERSCAN_API_KEY
```

**Expected Output**:
- Compliance Guard
- Reserve Oracle
- Mint Controller
- Burn Controller
- Token Registry
- Token Factory
- USDW, EURW, GBPW tokens

### **Step 4: Deploy Bridge System**

```bash
# Deploy Universal CCIP Bridge
forge script script/deploy/02_DeployBridges.s.sol:DeployBridges \
  --rpc-url $RPC_URL \
  --broadcast \
  --verify \
  --etherscan-api-key $ETHERSCAN_API_KEY

# Deploy WETH bridges
export CCIP_ROUTER_ADDRESS="0x..."
export WETH9_ADDRESS="0x..."
export WETH10_ADDRESS="0x..."
export LINK_TOKEN_ADDRESS="0x..."

forge script script/deploy/bridge/DeployWETHBridges.s.sol:DeployWETHBridges \
  --rpc-url $RPC_URL \
  --broadcast \
  --verify \
  --etherscan-api-key $ETHERSCAN_API_KEY
```

### **Step 5: Deploy Chain Adapters**

```bash
# Deploy all chain adapters
forge script script/deploy/chains/DeployAllAdapters.s.sol:DeployAllAdapters \
  --rpc-url $RPC_URL \
  --broadcast \
  --verify \
  --etherscan-api-key $ETHERSCAN_API_KEY
```

### **Step 6: Configure Bridge Destinations**

```bash
# Set bridge addresses from deployment
export WETH9_BRIDGE_138="0x..."
export WETH10_BRIDGE_138="0x..."

# Configure destinations
./scripts/deployment/configure-bridge-destinations.sh
```

### **Step 7: Initialize Systems**

```bash
# Register assets in Universal Asset Registry
# Register chains in Chain Registry
# Configure risk parameters in Ledger
# Initialize reserve oracle with initial reserves
```

---

## ✅ **Post-Deployment Verification**

### **1. Contract Verification**

```bash
# Verify all contracts on Etherscan
forge verify-contract <CONTRACT_ADDRESS> <CONTRACT_NAME> \
  --chain-id <CHAIN_ID> \
  --etherscan-api-key $ETHERSCAN_API_KEY
```

### **2. Functional Testing**

```bash
# Run integration tests on testnet
forge test --fork-url $RPC_URL

# Test bridge functionality
# Test vault operations
# Test ISO-4217W token operations
```

### **3. Monitoring Setup**

- [ ] Set up event monitoring
- [ ] Configure alerts
- [ ] Create monitoring dashboard
- [ ] Set up logging

---

## 📊 **Deployment Addresses**

Document all deployed addresses:

```markdown
## Testnet Deployment Addresses

### Core Infrastructure
- Universal Asset Registry: `0x...`
- Chain Registry: `0x...`
- Universal CCIP Bridge: `0x...`

### Vault System
- Regulated Entity Registry: `0x...`
- XAU Oracle: `0x...`
- Ledger: `0x...`
- Vault Factory: `0x...`

### ISO-4217W System
- Compliance Guard: `0x...`
- Reserve Oracle: `0x...`
- Token Factory: `0x...`
- USDW Token: `0x...`

### Bridge System
- WETH9 Bridge: `0x...`
- WETH10 Bridge: `0x...`
- Polygon Adapter: `0x...`
- XDC Adapter: `0x...`
```

---

## 🔧 **Troubleshooting**

### **Common Issues**

1. **Out of Gas**
   - Increase gas limit: `--gas-limit 5000000`
   - Optimize contract size

2. **Verification Failures**
   - Check compiler version matches
   - Verify constructor arguments
   - Use `--constructor-args` if needed

3. **Transaction Failures**
   - Check account balance
   - Verify nonce
   - Check contract addresses

---

## 📝 **Next Steps After Testnet Deployment**

1. **Testing**
   - Run comprehensive test suite
   - Test all user flows
   - Test edge cases
   - Test failure scenarios

2. **Monitoring**
   - Monitor contract activity
   - Track gas usage
   - Monitor bridge transfers
   - Check oracle updates

3. **Iteration**
   - Fix any issues discovered
   - Optimize gas usage
   - Improve user experience
   - Update documentation

4. **Production Preparation**
   - Complete security audit
   - Finalize production configuration
   - Prepare production deployment scripts
   - Schedule production deployment

---

**Status**: ✅ **Ready for Testnet Deployment**