# README Improvement Plan

## Priority 1: Critical Missing Information

### 1.1 Environment Variables
- Add documentation for `DRY_RUN` environment variable and its purpose
- Document `HOST_TYPE_FILTER_DEFAULT` and `HOST_GROUP_FILTER_DEFAULT` configuration options
- Explain the difference between `ZABBIX_AUTH_TOKEN` and `ZABBIX_AUTH_TOKEN_FOR_REQUESTS`
- Add information about `FIND_ZABBIX_EDGE_DEVICE_BASE_GROUP_PREFIX` regex pattern

### 1.2 API Version Information
- Fix the API version placeholder to properly display the current version
- Add information about version compatibility between the API and Zabbix server. 
  - Tested with Zabbix. 7.4

### 1.3 Subscription Clarification
- Either implement actual subscription operations in the schema or clarify that only infrastructure is provided
- If only infrastructure is provided, update the feature description to be more accurate

## Priority 2: Enhance Existing Sections

### 2.1 Architecture Section
- Add an architecture diagram or detailed explanation based on AGENTS.md
- Include information about the data flow between components
- Explain the role of each DataSource file in the datasources directory

### 2.2 Configuration Section
- Add a complete table of all environment variables with descriptions
- Include default values and required/optional status
- Add examples of production vs development configurations

### 2.3 Schema Relationship Section
- Create a mapping table between Zabbix entities and GraphQL types
- Explain how Zabbix host groups, templates, and items relate to GraphQL objects
- Add information about the Location type and its usage

## Priority 3: Add New Sections

### 3.1 Code Generation Section
- Explain the GraphQL Codegen setup and how to regenerate types
- Document the `codegen.ts` configuration
- Add instructions for updating generated types after schema changes

### 3.2 Troubleshooting Section
- Common connection issues with Zabbix server
- Authentication problems and solutions
- Schema extension troubleshooting
- Performance issues and optimizations

### 3.3 Security Best Practices
- Recommended authentication approaches
- Permission system best practices
- Network security considerations
- API rate limiting and protection

### 3.4 Performance and Scaling
- Performance considerations for large Zabbix installations
- Caching strategies
- Connection pooling recommendations
- Monitoring and observability setup

### 3.5 Backup and Recovery
- Configuration backup procedures
- Schema migration guidelines
- Disaster recovery procedures

## Priority 4: Improve Examples

### 4.1 Complete Examples
- Add more complete examples for each major operation
- Include error handling examples
- Add examples for common use cases beyond the distance tracker

### 4.2 Testing Examples
- Add information about how to run tests
- Include examples of unit and integration tests
- Explain the test structure and how to add new tests

## Priority 5: Documentation Links

### 5.1 Cross-Reference Improvements
- Add links to relevant sections in schema files
- Include references to specific resolver implementations
- Link to related documentation files in the docs directory

### 5.2 External Resources
- Link to official Zabbix API documentation
- Include references to Apollo Server documentation
- Add links to GraphQL best practices

## Priority 6: Maintenance Items

### 6.1 Update Placeholder Values
- Replace all "your-" placeholder values with more descriptive examples
- Add realistic example values for configuration parameters
- Include sample output where appropriate

### 6.2 Version Compatibility Matrix
- Create a matrix showing compatibility between API versions and Zabbix versions
- Include Node.js version compatibility information
- Add information about breaking changes between versions

## Implementation Order
1. Address Priority 1 items first (critical missing information)
2. Update existing sections to be more accurate
3. Add new sections incrementally
4. Enhance examples with more practical use cases
5. Add documentation links and cross-references
6. Perform final review and testing of all examples

## Success Metrics
- All environment variables documented
- Accurate representation of features
- Complete working examples
- Clear architecture and configuration guidance
- Comprehensive troubleshooting information
- Proper cross-references to codebase