- Move useEffect hooks before conditional returns in MessageContent and ThinkingContent
- Ensure hooks are called in the same order every render
- Fix "Rendered fewer hooks than expected" error when API returns non-200 status
- Follow React hooks rules: only call hooks at the top level
This prevents the entire page from crashing when API requests fail.
Summary
This commit addresses two critical issues affecting the real-time chat experience in the Playground:
1. Optimized re-rendering of reasoning content
• Added `reasoningContent` to the comparison function of `OptimizedMessageContent` (`web/src/components/playground/OptimizedComponents.js`).
• Ensures the component re-renders while reasoning text streams, resolving the bug where only the first characters (“好,”) were shown until the stream finished.
2. Defensive checks for SSE message updates
• Added early-return guards in `streamMessageUpdate` (`web/src/hooks/useApiRequest.js`).
• Skips updates when `lastMessage` is undefined or the last message isn’t from the assistant, preventing `TypeError: Cannot read properties of undefined (reading 'status')` during rapid SSE responses.
Impact
• Real-time reasoning content now appears progressively, enhancing user feedback.
• Eliminates runtime crashes caused by undefined message references, improving overall stability.
- Remove duplicate thinking content rendering logic from MessageContent component
- Import and utilize ThinkingContent component for consistent thinking display
- Clean up unused icon imports (ChevronRight, ChevronUp, Brain)
- Consolidate "思考中..." header text logic into single component
- Reduce code duplication by ~70 lines while maintaining all functionality
- Improve component separation of concerns and maintainability
The MessageContent component now delegates thinking content rendering to the
dedicated ThinkingContent component, eliminating the previously duplicated
UI logic and state management for thinking processes.
- Add CustomRequestEditor component with JSON validation and real-time formatting
- Implement bidirectional sync between chat messages and custom request body
- Add persistent local storage for chat messages (separate from config)
- Remove redundant System Prompt field in custom mode
- Refactor configuration storage to separate messages and settings
New Features:
• Custom request body mode with JSON editor and syntax highlighting
• Real-time bidirectional synchronization between chat UI and custom request body
• Persistent message storage that survives page refresh
• Enhanced configuration export/import including message data
• Improved parameter organization with collapsible sections
Technical Changes:
• Add loadMessages/saveMessages functions in configStorage
• Update usePlaygroundState hook to handle message persistence
• Refactor SettingsPanel to remove System Prompt in custom mode
• Add STORAGE_KEYS constants for better storage key management
• Implement debounced auto-save for both config and messages
• Add hash-based change detection to prevent unnecessary updates
UI/UX Improvements:
• Disabled state styling for parameters in custom mode
• Warning banners and visual feedback for mode switching
• Mobile-responsive design for custom request editor
• Consistent styling with existing design system
