# Disaster Recovery Plan

## Overview

This document outlines the disaster recovery procedures for the Black Canyon Tickets platform. The system is designed to recover from various failure scenarios including:

- Database corruption or loss
- Server hardware failure
- Data center outages
- Human error (accidental data deletion)
- Security incidents

## Recovery Time Objectives (RTO) and Recovery Point Objectives (RPO)

- **RTO**: Maximum 4 hours for full system restoration
- **RPO**: Maximum 24 hours of data loss (daily backups)
- **Critical RTO**: Maximum 1 hour for payment processing restoration
- **Critical RPO**: Maximum 1 hour for payment data (real-time replication)

## Backup Strategy

### Automated Backups

The system performs automated backups at the following intervals:

- **Daily backups**: Every day at 2:00 AM (retained for 7 days)
- **Weekly backups**: Every Sunday at 3:00 AM (retained for 4 weeks)
- **Monthly backups**: 1st of each month at 4:00 AM (retained for 12 months)

### Backup Contents

All backups include:
- User accounts and profiles
- Organization data
- Event information
- Ticket sales and transactions
- Audit logs
- Configuration data

### Backup Verification

- All backups include SHA-256 checksums for integrity verification
- Monthly backup integrity tests are performed
- Recovery procedures are tested quarterly

## Disaster Recovery Procedures

### 1. Assessment Phase

**Immediate Actions (0-15 minutes):**
1. Assess the scope and impact of the incident
2. Activate the incident response team
3. Communicate with stakeholders
4. Document the incident start time

**Assessment Questions:**
- What systems are affected?
- What is the estimated downtime?
- Are there any security implications?
- What are the business impacts?

### 2. Containment Phase

**Database Issues (15-30 minutes):**
1. Stop all write operations to prevent further damage
2. Isolate affected systems
3. Preserve evidence for post-incident analysis
4. Switch to read-only mode if possible

**Security Incidents:**
1. Isolate compromised systems
2. Preserve logs and evidence
3. Change all administrative passwords
4. Notify relevant authorities if required

### 3. Recovery Phase

#### Database Recovery

**Complete Database Loss:**
```bash
# 1. Verify backup integrity
node scripts/backup.js verify

# 2. List available backups
node scripts/backup.js list

# 3. Test restore (dry run)
node scripts/backup.js restore <backup-id> --dry-run

# 4. Perform actual restore
node scripts/backup.js restore <backup-id> --confirm

# 5. Verify system integrity
node scripts/backup.js verify
```

**Partial Data Loss:**
```bash
# Restore specific tables only
node scripts/backup.js restore <backup-id> --tables users,events --confirm
```

**Point-in-Time Recovery:**
```bash
# Create emergency backup before recovery
node scripts/backup.js disaster-recovery pre-recovery-$(date +%Y%m%d)

# Restore from specific point in time
node scripts/backup.js restore <backup-id> --confirm
```

#### Application Recovery

**Server Failure:**
1. Deploy to backup server infrastructure
2. Update DNS records if necessary
3. Restore database from latest backup
4. Verify all services are operational
5. Test critical user flows

**Configuration Loss:**
1. Restore from version control
2. Apply environment-specific configurations
3. Restart services
4. Verify functionality

### 4. Verification Phase

**System Integrity Checks:**
```bash
# Run automated integrity verification
node scripts/backup.js verify
```

**Manual Verification:**
1. Test user authentication
2. Verify payment processing
3. Check event creation and ticket sales
4. Validate email notifications
5. Confirm QR code generation and scanning

**Performance Verification:**
1. Check database query performance
2. Verify API response times
3. Test concurrent user capacity
4. Monitor error rates

### 5. Communication Phase

**Internal Communication:**
- Notify all team members of recovery status
- Document lessons learned
- Update incident timeline
- Schedule post-incident review

**External Communication:**
- Notify customers of service restoration
- Provide incident summary if required
- Update status page
- Communicate with payment processor if needed

## Emergency Contacts

### Internal Team
- **System Administrator**: [Phone/Email]
- **Database Administrator**: [Phone/Email]
- **Security Officer**: [Phone/Email]
- **Business Owner**: [Phone/Email]

### External Services
- **Hosting Provider**: [Contact Information]
- **Payment Processor (Stripe)**: [Contact Information]
- **Email Service (Resend)**: [Contact Information]
- **Monitoring Service (Sentry)**: [Contact Information]

## Recovery Time Estimates

| Scenario | Estimated Recovery Time |
|----------|------------------------|
| Database corruption (partial) | 1-2 hours |
| Complete database loss | 2-4 hours |
| Server hardware failure | 2-3 hours |
| Application deployment issues | 30-60 minutes |
| Configuration corruption | 15-30 minutes |
| Network/DNS issues | 15-45 minutes |

## Testing and Maintenance

### Quarterly Recovery Tests
- Full disaster recovery simulation
- Backup integrity verification
- Recovery procedure validation
- Team training updates

### Monthly Maintenance
- Backup system health checks
- Storage capacity monitoring
- Recovery documentation updates
- Team contact information verification

### Weekly Monitoring
- Backup success verification
- System performance monitoring
- Security log review
- Capacity planning assessment

## Post-Incident Procedures

### Immediate Actions
1. Document the incident timeline
2. Gather all relevant logs and evidence
3. Notify stakeholders of resolution
4. Update monitoring and alerting if needed

### Post-Incident Review
1. Schedule team review meeting within 48 hours
2. Document root cause analysis
3. Identify improvement opportunities
4. Update procedures and documentation
5. Implement preventive measures

### Follow-up Actions
1. Monitor system stability for 24-48 hours
2. Review and update backup retention policies
3. Conduct additional testing if needed
4. Update disaster recovery plan based on lessons learned

## Preventive Measures

### Monitoring and Alerting
- Database performance monitoring
- Backup success/failure notifications
- System resource utilization alerts
- Security event monitoring

### Security Measures
- Regular security audits
- Access control reviews
- Vulnerability assessments
- Incident response training

### Documentation
- Keep all procedures up to date
- Maintain accurate system documentation
- Document all configuration changes
- Regular procedure review and testing

## Backup Storage Locations

### Primary Backup Storage
- **Location**: Supabase Storage (same region as database)
- **Encryption**: AES-256 encryption at rest
- **Access**: Service role authentication required
- **Retention**: Automated cleanup based on retention policy

### Secondary Backup Storage (Future)
- **Location**: AWS S3 (different region)
- **Purpose**: Offsite backup for disaster recovery
- **Sync**: Daily sync of critical backups
- **Access**: IAM-based access control

## Compliance and Legal Considerations

### Data Protection
- All backups comply with GDPR requirements
- Personal data is encrypted and access-controlled
- Data retention policies are enforced
- Right to erasure is supported

### Business Continuity
- Service level agreements are maintained
- Customer communication procedures are defined
- Financial impact is minimized
- Regulatory requirements are met

## Version History

| Version | Date | Changes | Author |
|---------|------|---------|---------|
| 1.0 | 2024-01-XX | Initial disaster recovery plan | System Admin |

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**Last Updated**: January 2024
**Next Review**: April 2024
**Document Owner**: System Administrator