Process Builder Refactoring: Modular Architecture and Enhanced Features

Overview

This PR introduces a major refactoring of the Process Builder application, focusing on modular architecture, improved maintainability, and enhanced features. The changes include a complete reorganization of the codebase into specialized utility modules and the addition of new functionality.

Key Changes

1. Modular Architecture

• Split monolithic code into specialized utility modules:
  • ai_generation.py: AI-related functionality
  • process_validation.py: Step and flow validation
  • output_generation.py: CSV, diagram, and documentation generation
  • state_management.py: Process state persistence
  • input_handlers.py: User input processing
  • ui_helpers.py: Console UI functionality
  • file_operations.py: File I/O operations
  • interview_process.py: Step creation workflow

2. Enhanced Features

• Added PNG diagram generation using Mermaid.INK API
• Improved AI suggestions for step creation
• Enhanced validation and error handling
• Better state management and persistence
• More robust input handling

3. Code Quality Improvements

• Improved type hints and documentation
• Better error handling and logging
• Consistent code style and formatting
• Reduced code duplication
• Enhanced testability

Technical Details

New Utility Modules

• AI Generation: Centralized OpenAI API interactions
• Process Validation: Comprehensive step and flow validation
• Output Generation: Enhanced diagram and documentation generation
• State Management: Improved state persistence and loading
• Input Handlers: Better user input validation and processing
• UI Helpers: Enhanced console interface
• File Operations: Robust file handling
• Interview Process: Streamlined step creation workflow

New Features

• PNG Diagram Generation: Automatic generation of PNG images from Mermaid diagrams
• Enhanced AI Suggestions: More context-aware suggestions for step creation
• Improved Validation: Better process flow validation and error detection
• State Management: More reliable state persistence and recovery
• Input Handling: More robust user input validation and processing

Testing

• Added unit tests for new utility modules
• Enhanced existing tests for improved coverage
• Added integration tests for new features

Documentation

• Updated README with new features and architecture
• Added docstrings for all new functions and classes
• Improved inline comments and documentation

Breaking Changes

• Some function signatures have changed to support the new modular architecture
• Configuration options have been updated to support new features
• State file format has been updated to support new features

Migration Guide

1. Update imports to use new utility modules
2. Update configuration to support new features
3. Migrate state files to new format if needed

Future Work

• Add support for more diagram formats
• Enhance AI suggestions with more context
• Add support for collaborative editing
• Improve performance and scalability

Related Issues

• #123: Modularize Process Builder
• #124: Add PNG diagram generation
• #125: Improve AI suggestions
• #126: Enhance validation and error handling

Checklist

• Code follows style guidelines
• Tests added/updated
• Documentation updated
• Breaking changes documented
• Migration guide provided