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GitHub Action Modularization

This PR finalizes the architectural refactoring by completing the migration from a monolithic structure to a modular, service-oriented architecture with clear separation of concerns.

Key Deliverables:

Final Architectural Transition

  • Replaced legacy monolithic index.ts with pure orchestrator main.ts
  • Introduced dedicated GitHubService layer for external API operations
  • Updated build chain (package.json, dist/) to reflect new structure

Core Changes

1. Orchestrator Simplification

  • main.ts now exclusively handles input loading, service initialization, execution flow, and error management
  • All business logic removed from orchestrator layer

2. Service Layer Introduction

  • GitHubService provides specialized, self-contained GitHub operations
  • Uses typed Octokit SDK methods (repos.renameBranch)
  • Decoupled from configuration management and input handling
  • Enables better testability and maintainability

3. Build System Alignment

  • Updated entry point to main.ts
  • Generated new production artifacts in dist/
  • Removed legacy code artifacts

Engineering Principles Applied

SOLID Compliance

  • Single Responsibility: Each module has distinct purpose
  • Interface Segregation: Clear separation between external and internal interfaces
  • Dependency Inversion: Orchestrator depends on service abstractions

Clean Architecture

  • Interface Layer: ConfigManager (input adaptation)
  • Application Layer: main.ts (orchestration)
  • Service Layer: GitHubService (external operations)

Quality Enhancements

  • Elimination of magic strings
  • Type-safe API calls
  • Immutable input contracts
  • Centralized validation
  • Declarative error handling

Benefits Achieved

  • Improved testability through service isolation
  • Enhanced code readability and maintainability
  • Better error detection at compile time
  • Scalable foundation for future features
  • Industry-standard architecture patterns

The refactoring establishes a robust, predictable, and professionally structured GitHub Action ready for production use and future extensions.

* feat(service): add GitHubService to modularize octokit operations

- creates src/services/github.service.ts with an isolated class responsible for the renameBranch call.
- implements an open parameter pattern, without ActionInputs dependencies.
- encapsulates typed calls using octokit.rest.repos.renameBranch.

* refactor(core): rename index.ts to main.ts and make it a pure orchestrator

- completely remove index.ts from the main flow.
- create main.ts containing only the action execution/orchestration function.
- move all business logic to specialized services according to srp standards.

* chore(build): adjust package.json for new entrypoint and build command

- updates internal references to point to main.ts as the entry point.
- adjusts the typescript compiler (tsc) configuration according to the new structure.
- ensures that the build correctly generates the dist/index.js artifact with the new modular flow.

* build: update dist/index.js artifact after structural refactoring

- regenerates dist/index.js reflecting the changes in main.ts and the new githubservice.
- removes legacy code that was previously present in index.ts.
- updated artifact generated by typescript without manual changes.

* documenting...
@rmottanet rmottanet self-assigned this Nov 26, 2025
@rmottanet rmottanet added the enhancement New feature or request label Nov 26, 2025
@rmottanet rmottanet merged commit da95b7e into ws2git:main Nov 26, 2025
@github-project-automation github-project-automation bot moved this from Todo to Done in Typed Actions Stack Nov 26, 2025
@rmottanet rmottanet deleted the refactor branch November 26, 2025 20:33
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