Completely restructured the Playground component from a 1437-line monolith
into a maintainable, modular architecture with 62.4% code reduction (540 lines).
**Key Improvements:**
- **Modular Architecture**: Extracted business logic into separate utility files
- `utils/constants.js` - Centralized constant management
- `utils/messageUtils.js` - Message processing utilities
- `utils/apiUtils.js` - API-related helper functions
- **Custom Hooks**: Created specialized hooks for better state management
- `usePlaygroundState.js` - Centralized state management
- `useMessageActions.js` - Message operation handlers
- `useApiRequest.js` - API request management
- **Code Quality**: Applied SOLID principles and functional programming patterns
- **Performance**: Optimized re-renders with useCallback and proper dependency arrays
- **Maintainability**: Implemented single responsibility principle and separation of concerns
**Technical Achievements:**
- Eliminated code duplication and redundancy
- Replaced magic strings with typed constants
- Extracted complex inline logic into pure functions
- Improved error handling and API response processing
- Enhanced code readability and testability
**Breaking Changes:** None - All existing functionality preserved
This refactor transforms the codebase into enterprise-grade quality following
React best practices and modern development standards.
- Add role toggle button in MessageActions component for assistant/system messages
- Implement handleRoleToggle function in Playground component to switch between assistant and system roles
- Add visual distinction for system messages with orange badge indicator
- Update roleInfo configuration to use consistent avatars for assistant and system roles
- Add proper tooltip texts and visual feedback for role switching
- Ensure role toggle is disabled during message generation to prevent conflicts
This feature allows users to easily switch message roles between assistant and system,
providing better control over conversation flow and message categorization in the playground interface.
Fix TypeError when processing multimodal messages containing both text and images.
The error "textContent.text.trim is not a function" occurred when textContent
was null or textContent.text was not a string type.
Changes:
- Add comprehensive type checking for textContent.text access
- Implement getTextContent() utility function for unified content extraction
- Enhance error handling to support multimodal content display
- Fix message copy functionality to handle array-format content
- Improve message reset functionality to extract text content for retry
- Add user-friendly warnings when copying messages without text content
Technical improvements:
- Validate textContent existence and text property type before calling trim()
- Extract text content from multimodal messages for operations like copy/retry
- Maintain backward compatibility with string-format content
- Preserve all existing functionality while adding robust error handling
Fixes issues with:
- Image + text message processing
- Message copying from multimodal content
- Message retry with image attachments
- Error display for complex message formats
This ensures the playground component handles multimodal content gracefully
without breaking existing text-only message functionality.
