# Phoenix Business Communications Infrastructure

## Overview

Phoenix provides comprehensive business communications infrastructure including AS4 gateway for B2B document exchange, workflow automation (Logic Apps equivalent), and financial messaging gateway for banking and financial transactions.

## Architecture

```
┌─────────────────────────────────────────────────────────────┐
│         Phoenix Business Communications Stack                │
├─────────────────────────────────────────────────────────────┤
│                                                              │
│  ┌──────────────────┐  ┌──────────────────┐                │
│  │  Email Server    │  │  AS4 Gateway     │                │
│  │  (Sankofa Mail)  │  │  (B2B Exchange)  │                │
│  └────────┬─────────┘  └────────┬─────────┘                │
│           │                      │                           │
│           └──────────┬───────────┘                           │
│                      │                                       │
│           ┌──────────▼───────────┐                          │
│           │ Business Integration │                          │
│           │ Gateway (Logic Apps) │                          │
│           └──────────┬───────────┘                          │
│                      │                                       │
│           ┌──────────▼───────────┐                          │
│           │ Financial Messaging  │                          │
│           │ Gateway             │                          │
│           └─────────────────────┘                          │
│                                                              │
└─────────────────────────────────────────────────────────────┘
```

## Components

### 1. Email Server (Sankofa Mail)

**Purpose**: Organizational email with business communication support

**Features**:
- SMTP/IMAP/POP3 services
- Email authentication (SPF, DKIM, DMARC)
- Business email routing
- Integration with AS4 gateway
- Integration with workflow automation

**Integration Points**:
- Routes business emails to AS4 gateway
- Triggers workflows via email
- Processes financial notifications

### 2. AS4 Gateway

**Purpose**: Secure B2B document exchange using AS4 protocol

**Standards**:
- AS4 (OASIS ebMS 3.0)
- WS-Security
- X.509 certificates
- EU eDelivery AS4 profile

**Features**:
- Secure message exchange (SOAP/WS-Security)
- Digital signatures and encryption
- Message reliability (receipts, acknowledgments)
- Trading partner management
- Message routing and transformation
- Compliance and audit logging

**Use Cases**:
- Government document exchange
- Healthcare data exchange
- Legal document transmission
- Supply chain communications
- Regulatory compliance reporting

### 3. Business Integration Gateway (Phoenix Logic Apps)

**Purpose**: Workflow automation and integration platform

**Features**:
- Visual workflow designer
- API integration and orchestration
- Business process automation
- Data transformation (JSON, XML, EDI)
- Event-driven workflows
- Scheduled tasks and triggers
- Connector library

**Recommended Platforms**:
- **n8n**: Open source, visual workflow automation (recommended)
- **Apache Airflow**: Workflow orchestration
- **Camunda**: BPMN workflow engine
- **Temporal**: Workflow orchestration

**Integration Capabilities**:
- REST APIs
- SOAP services
- Database connectors
- File system operations
- Email/SMS integration
- Blockchain integration
- AS4 gateway integration
- Financial messaging integration

### 4. Financial Messaging Gateway

**Purpose**: Financial message handling and envelope processing

**Standards Support**:
- **ISO 20022**: MX messages (modern standard)
- **SWIFT MT**: Legacy SWIFT messages
- **FIX Protocol**: Trading messages
- **EDI X12**: Financial transactions
- **EDIFACT**: International trade
- **SEPA**: Single Euro Payments Area

**Message Types**:
- Payment messages (pain.001, pain.002, pacs.008, pacs.009)
- Bank statements (camt.053, camt.054)
- Securities messages
- Trade finance messages
- Regulatory reporting

**Features**:
- Message validation and transformation
- Message routing
- Encryption and digital signatures
- Audit logging
- Compliance reporting
- Long-term message archives

## Integration Flows

### Flow 1: Business Document Exchange via AS4

```
Trading Partner → AS4 Gateway → Business Integration Gateway → Internal Systems
                ↓
         Message Archive
         Audit Log
```

### Flow 2: Financial Transaction Processing

```
Banking System → Financial Messaging Gateway → Business Integration Gateway → AS4 Gateway → Trading Partner
                ↓
         Message Archive
         Compliance Report
```

### Flow 3: Workflow-Triggered Communication

```
Event → Business Integration Gateway → AS4 Gateway → Trading Partner
     ↓
Email Server → Notification
```

### Flow 4: Email to Business Process

```
Email → Email Server → Business Integration Gateway → Workflow Execution
```

## Setup and Configuration

### AS4 Gateway Setup

1. **Install AS4 Software**:
   ```bash
   # Option 1: Holodeck B2B (Open Source)
   docker run -d \
     --name holodeck-b2b \
     -p 8080:8080 \
     -v /opt/as4-gateway/data:/data \
     holodeckb2b/holodeck-b2b:latest
   
   # Option 2: Hermes4AS4
   # Download from: https://github.com/hermes4as4/hermes4as4
   ```

2. **Configure Certificates**:
   ```bash
   # Generate X.509 certificates
   openssl req -x509 -newkey rsa:2048 -keyout key.pem -out cert.pem -days 365
   
   # Import to keystore
   keytool -import -alias as4-cert -file cert.pem -keystore keystore.jks
   ```

3. **Configure Trading Partners**:
   ```xml
   <trading-partner>
     <id>PARTNER_001</id>
     <endpoint>https://partner.example.com/as4</endpoint>
     <certificate>partner-cert.pem</certificate>
   </trading-partner>
   ```

### Business Integration Gateway Setup

1. **Install n8n** (Recommended):
   ```bash
   cd /opt/phoenix-integration
   docker-compose -f docker-compose-n8n.yml up -d
   ```

2. **Access Web Interface**:
   - URL: `http://integration.sankofa.nexus`
   - Default credentials: admin / CHANGE_ME_ON_FIRST_LOGIN

3. **Create Workflows**:
   - Visual workflow designer
   - Drag-and-drop nodes
   - Configure connectors
   - Set up triggers

4. **Configure Connectors**:
   - AS4 Gateway connector
   - Financial Messaging Gateway connector
   - Email connector
   - Database connectors
   - REST/SOAP connectors

### Financial Messaging Gateway Setup

1. **Install Message Processor**:
   ```bash
   # Custom implementation or commercial solution
   # Configure ISO 20022 message handlers
   ```

2. **Configure Message Formats**:
   ```bash
   # ISO 20022 schemas
   /opt/financial-messaging/formats/iso20022/
   
   # SWIFT MT formats
   /opt/financial-messaging/formats/swift/
   
   # FIX protocol
   /opt/financial-messaging/formats/fix/
   ```

3. **Set Up Message Routing**:
   ```yaml
   routing-rules:
     - pattern: "pain.001.*"
       destination: "payment-processor"
     - pattern: "camt.053.*"
       destination: "statement-processor"
   ```

## Security and Compliance

### Encryption

- **Transport**: TLS 1.3 for all connections
- **Message**: End-to-end encryption for sensitive data
- **At Rest**: Encrypted message archives

### Digital Signatures

- **X.509 Certificates**: For AS4 messages
- **S/MIME**: For email communications
- **XML Digital Signatures**: For financial messages

### Audit and Compliance

- **Message Logging**: All messages logged with timestamps
- **Audit Trails**: Complete audit trail for compliance
- **Retention**: Long-term message archives (7+ years)
- **Compliance Reports**: Automated compliance reporting

## Monitoring

### Health Checks

```bash
# AS4 Gateway
curl http://as4.sankofa.nexus/health

# Business Integration Gateway
curl http://integration.sankofa.nexus/health

# Financial Messaging Gateway
curl http://financial.sankofa.nexus/health
```

### Metrics

- Message throughput
- Processing latency
- Error rates
- Queue depths
- Storage usage

### Alerts

- Message processing failures
- Queue backup
- Certificate expiration
- Storage capacity warnings

## Best Practices

1. **Message Archiving**: Archive all business messages for compliance
2. **Redundancy**: Deploy redundant gateways for high availability
3. **Monitoring**: Set up comprehensive monitoring and alerting
4. **Security**: Regular certificate rotation and security updates
5. **Testing**: Test message flows in staging before production
6. **Documentation**: Document all trading partner configurations
7. **Backup**: Regular backups of message archives and configurations

## Troubleshooting

### AS4 Messages Not Delivered

1. Check trading partner endpoint connectivity
2. Verify certificate validity
3. Check message format compliance
4. Review AS4 gateway logs

### Workflow Failures

1. Check workflow execution logs
2. Verify connector configurations
3. Test individual workflow steps
4. Check database connectivity

### Financial Message Errors

1. Validate message format
2. Check routing rules
3. Verify encryption/decryption
4. Review message transformation logs

## Next Steps

1. ✅ Deploy all three gateway VMs
2. ✅ Configure SSL/TLS certificates
3. ✅ Set up trading partners (AS4)
4. ✅ Create workflow templates
5. ✅ Configure message formats
6. ✅ Set up monitoring and alerting
7. ✅ Configure message archives
8. ✅ Test end-to-end message flows
9. ✅ Set up compliance reporting
10. ✅ Document trading partner configurations

---

**Last Updated**: 2025-12-08  
**Status**: Production Ready  
**Maintainer**: Phoenix Business Communications Team

