Refactor CLI Default Command

[bhouston]

Refactor CLI Default Command

Description

The current CLI default command implementation has several issues that make it difficult to maintain and extend:

1. Nested Conditional Logic - The default command contains several levels of nested conditional logic for configuration, GitHub mode, API validation, and error handling.

2. Duplicated Configuration Loading - Configuration is loaded in multiple places (CLI entry point and command handler).

3. Multiple Logger Instances - A logger is created in multiple places with the same configuration.

4. Mixed Concerns - Upgrade checks, GitHub CLI validation, and error reporting are mixed with core command functionality.

5. Tightly Coupled Components - The default command is tightly coupled with version checking, Git CLI checking, configuration loading, and error reporting.

6. Duplicated Error Handling - Error handling is spread across multiple levels.

Proposed Solution

Refactor the CLI default command code to:

1. Separate Command Logic from Infrastructure - Create a service layer for command execution.

2. Extract Configuration Management - Create a dedicated configuration service.

3. Implement a Unified Logging Service - Create a centralized logging service to avoid duplication.

4. Extract Feature-Specific Services - Create separate services for version checking, GitHub CLI validation, etc.

5. Implement Dependency Injection - Use a simple DI container to manage service dependencies.

6. Improve Command Structure - Implement a command factory pattern and middleware support.

Implementation Strategy

A phased approach is recommended:

1. Phase 1: Extract services while keeping the existing command structure
2. Phase 2: Implement dependency injection
3. Phase 3: Refactor command structure
4. Phase 4: Improve error handling and logging

Benefits

This refactoring will result in:

• Better separation of concerns
• Reduced code duplication
• Improved testability
• Enhanced maintainability
• Easier extensibility

Additional Context

A detailed analysis report with code examples is available and can be shared if needed.