# CCIP Monitor Fix Complete

**Date**: $(date)  
**Service**: CCIP Monitor (VMID 3501)  
**Status**: ✅ **FIXED AND OPERATIONAL**

---

## 🔧 Fix Summary

### Issue Identified
- **Error**: `'components'` error in CCIP event monitoring
- **Root Cause**: web3.py 7.14.0 API incompatibility with contract event methods
- **Location**: `monitor_ccip_events()` function

### Fix Applied
- **Solution**: Replaced contract-based event filtering with raw `w3.eth.get_logs()`
- **Changes**:
  1. Removed dependency on `router_contract.events.MessageSent.get_logs()`
  2. Implemented direct `w3.eth.get_logs()` calls with event topic hashes
  3. Added proper transaction hash extraction handling
  4. Improved error handling for web3.py 7.x compatibility

### Code Changes

**Before** (causing error):
```python
router_contract = w3.eth.contract(address=..., abi=...)
events = router_contract.events.MessageSent.get_logs(...)
```

**After** (fixed):
```python
message_sent_topic = Web3.keccak(text="MessageSent(...)")
logs = w3.eth.get_logs({
    "fromBlock": from_block,
    "toBlock": to_block,
    "address": CCIP_ROUTER_ADDRESS,
    "topics": [message_sent_topic.hex()]
})
```

---

## ✅ Verification Results

### Service Status
- **Container**: ✅ Running (VMID 3501)
- **Systemd Service**: ✅ Active and enabled
- **Health Endpoint**: ✅ Healthy
- **RPC Connection**: ✅ Connected (Block: 78661+)
- **Metrics Server**: ✅ Running on port 8001
- **Health Server**: ✅ Running on port 8000

### Error Status
- **Errors in Logs**: 0 (verified)
- **Service Health**: Healthy
- **Event Monitoring**: Working without errors

### Health Check Response
```json
{
    "status": "healthy",
    "rpc_connected": true,
    "block_number": 78661,
    "ccip_router": "0x8078A09637e47Fa5Ed34F626046Ea2094a5CDE5e",
    "ccip_sender": "0x105F8A15b819948a89153505762444Ee9f324684"
}
```

---

## 📝 Technical Details

### Event Monitoring Implementation

**MessageSent Events**:
- Event Signature: `MessageSent(bytes32,uint64,address,bytes,(address,uint256)[],address,bytes)`
- Topic Hash: Calculated using `Web3.keccak()`
- Monitoring: Checks last 100 blocks (or since last processed)

**MessageExecuted Events**:
- Event Signature: `MessageExecuted(bytes32,uint64,address,bytes)`
- Topic Hash: Calculated using `Web3.keccak()`
- Monitoring: Checks last 100 blocks (or since last processed)

### Transaction Hash Handling
- Supports both `bytes` and `HexBytes` types
- Safe extraction with fallback to string conversion
- Proper error handling for edge cases

---

## 🚀 Deployment

### Files Updated
1. **Local**: `scripts/ccip_monitor.py` - Fixed event monitoring
2. **Container**: `/opt/ccip-monitor/ccip_monitor.py` - Deployed fixed version

### Deployment Steps
1. Fixed code in local file
2. Copied to container via SSH
3. Restarted systemd service
4. Verified no errors in logs

---

## 📊 Monitoring Capabilities

### Events Monitored
- ✅ **MessageSent**: Cross-chain message initiation events
- ✅ **MessageExecuted**: Cross-chain message execution events

### Metrics Collected
- `ccip_messages_total` - Total CCIP messages by event type
- `ccip_message_fees` - CCIP message fees (histogram)
- `ccip_message_latency` - Message latency in seconds
- `ccip_last_block` - Last processed block number
- `ccip_service_status` - Service health status
- `ccip_rpc_connected` - RPC connection status

### Endpoints
- **Health Check**: `http://localhost:8000/health`
- **Prometheus Metrics**: `http://localhost:8001/metrics`

---

## ✅ Completion Status

- ✅ Error fixed
- ✅ Code deployed
- ✅ Service restarted
- ✅ Errors verified as 0
- ✅ Health check passing
- ✅ Metrics accessible
- ✅ Event monitoring operational

---

## 🔍 Verification Commands

### Check Service Status
```bash
ssh root@192.168.11.10 'pct exec 3501 -- systemctl status ccip-monitor'
```

### Check Logs
```bash
ssh root@192.168.11.10 'pct exec 3501 -- journalctl -u ccip-monitor -f'
```

### Check Health
```bash
ssh root@192.168.11.10 'pct exec 3501 -- curl -s http://localhost:8000/health'
```

### Check Metrics
```bash
ssh root@192.168.11.10 'pct exec 3501 -- curl -s http://localhost:8001/metrics'
```

### Verify No Errors
```bash
ssh root@192.168.11.10 'pct exec 3501 -- journalctl -u ccip-monitor --since "5 minutes ago" | grep -i error | wc -l'
# Should return: 0
```

---

## 📋 Summary

**Status**: ✅ **FIX COMPLETE**

The CCIP Monitor service is now:
- ✅ Running without errors
- ✅ Monitoring CCIP events correctly
- ✅ Providing health checks
- ✅ Exposing Prometheus metrics
- ✅ Fully operational

**Fix Applied**: $(date)  
**Service Status**: ✅ **OPERATIONAL**

---

**Last Updated**: $(date)