Performance Improvements, Refactors & Test Coverage Enhancements#61
Merged
cgalibern merged 20 commits intoopensvc:mainfrom Feb 5, 2026
Merged
Performance Improvements, Refactors & Test Coverage Enhancements#61cgalibern merged 20 commits intoopensvc:mainfrom
cgalibern merged 20 commits intoopensvc:mainfrom
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- Add multiple test cases for ConfigSection component after refactoring from collapsible section to dialog-based UI - Test error handling scenarios including network failures and API errors - Test parameter management functionality (add, unset, delete parameters) - Test validation logic for indexed parameters and TListLowercase converter - Test dialog state management and reset behavior - Test edge cases for keyword data and existing parameters handling - Test configuration file upload functionality with various scenarios - Test duplicate keyword filtering in keywords dialog - Test decimal index validation for indexed parameters - Test all major user interactions and API calls The tests ensure proper functionality of the ConfigSection component after architectural changes, maintaining coverage for all critical paths and user interactions.
- Refactor NodeRow component to ensure WiFi and Freeze icons remain in fixed positions - Create fixed-size wrapper containers (24x24px) for each icon slot - Implement placeholder boxes to maintain layout when icons are not visible - Position WiFi icon before Freeze icon as requested - Ensure visual consistency across all table rows regardless of node state - Remove dynamic margins that caused icon position shifting The fix ensures that: - WiFi icon (for daemon nodes) is always in the first position - Freeze icon is always in the second position - Icons do not shift when nodes are frozen/unfrozen - Layout remains stable and predictable for all table rows
…constants Main Changes: Removals: - Removed `OVERVIEW_FILTERS` constant which was no longer used in the code - Removed `cleanupAllEventSources` export that is no longer exported Performance Optimizations: - Reduced `FLUSH_DELAY` from 500ms to 100ms for more responsive UI updates - Added immediate flush for the first received event (`eventCount === 1`) to improve initial response time - Maintained batching logic for subsequent events Type Fixes: - Added missing `filters` parameter to `handleAuthError` function to maintain compatibility Impact: - Improved UI responsiveness with faster updates - Simplified code by removing unused constants - Maintained all existing functionality
… state management Key changes: - Introduced two new custom hooks: - `useObjectData`: Centralizes and optimizes object data retrieval with memoization - `useNodeData`: Centralizes and optimizes node data retrieval with memoization - Refactored TableRowComponent and NodeStatus components to use new hooks - Simplified filtering and sorting logic by removing redundant computations - Replaced complex props with simplified props in TableRowComponent - Improved performance with better React component memoization - Optimized Zustand selectors with dedicated selector functions - Simplified URL management using timeout instead of complex debounce - Cleaned up code by removing unnecessary functions (objectStatusWithGlobalExpect, getNodeState) Benefits: - Reduced unnecessary re-renders - Better separation of concerns - More maintainable and readable code - Improved filtering and sorting performance - More predictable state management
…omponents Summary Implemented performance optimizations to eliminate unnecessary re-renders in the Objects and Cluster components by introducing custom hooks, memoized selectors, and proper React.memo usage. Changes Made 1. Objects Component Refactor (`src/components/Objects.jsx`) - Added custom hooks `useObjectData` and `useNodeData` to extract and memoize object and node status data - Replaced complex prop drilling with targeted data fetching at component level - Memoized all callbacks using `useCallback` to prevent function recreation - Optimized TableRowComponent with proper dependency arrays in React.memo - Simplified state management by removing redundant calculations and debouncing logic - Added selector functions for useEventStore to extract only necessary state slices 2. Event Source Manager (`src/eventSourceManager.js`) - Added performance logging to track buffer flush times - Optimized updateBuffer function with early returns for unchanged data - Enhanced isEqual function for more efficient deep comparison using JSON.stringify 3. Cluster Component Refactor (`src/components/Cluster.jsx`) - Created custom hooks (`useClusterData.js`): - `useNodeStats`: Memoized node statistics calculation - `useObjectStats`: Memoized object statistics and namespace data - `useHeartbeatStats`: Memoized heartbeat statistics - Memoized all navigation handlers and component props using `useMemo` and `useCallback` - Removed nested memo wrappers that caused infinite re-render loops - Added early return for loading state to prevent rendering with incomplete data 4. Cluster Stat Grids (`src/components/ClusterStatGrids.jsx`) - Fixed export/import issues by using default export for StatCard - Memoized all interactive components with proper dependency arrays - Added useCallback handlers for all click events to prevent recreation - Enhanced NamespaceChip component with memoized status elements and click handlers 5. Event Store (`src/hooks/useEventStore.js`) - Added selector exports for granular state access: - `selectObjectStatus` - `selectObjectInstanceStatus` - `selectInstanceMonitor` - `selectRemoveObject` - Maintained shallow equality checks to prevent unnecessary state updates Performance Improvements 1. Reduced re-renders: Components only update when their specific data changes 2. Efficient data extraction: Custom hooks extract only necessary data from Zustand store 3. Memoized calculations: Expensive statistics calculations cached with useMemo 4. Stable function references: Callbacks memoized with useCallback prevent child re-renders 5. Proper component isolation: Each component manages its own data dependencies Impact - Significantly improved rendering performance for large object lists - Reduced JavaScript execution time by minimizing redundant calculations - Better memory usage through proper memoization and cleanup - Smoother user experience with reduced UI stutter during data updates - Maintained functionality while optimizing performance-critical paths Technical Details - React.memo: Used with custom comparison functions for deep prop equality - useCallback: All event handlers memoized to prevent unnecessary re-renders - useMemo: Heavy computations cached based on dependency changes - Custom hooks: Isolated data fetching and transformation logic - Zustand selectors: Granular state subscriptions to minimize store updates This refactor follows React best practices for performance optimization while maintaining the existing functionality and user experience.
…cient data processing - Add Safari detection for browser-specific optimization - Implement Safari-optimized event batching with larger batch sizes (150 vs 100) - Reduce thrashing with longer flush delays and minimum intervals for Safari - Optimize buffer management with pre-allocated structures and fast shallow equality checks - Improve data processing in Objects component with single-pass namespace/kind extraction - Replace JSON.stringify comparisons with optimized shallow equality checks - Use early exits and efficient loops for filtering and sorting operations - Enhance EventSource management with improved reconnection logic - Maintain functionality while significantly reducing computational overhead
…mance and maintainability This commit introduces significant improvements to the Cluster component and its associated tests: Component Refactoring: - Replaced direct `useEventStore` usage with specialized throttled hooks (`useNodeStats`, `useObjectStats`, `useHeartbeatStats`) for better performance optimization - Implemented `useCallback` for navigation handlers to prevent unnecessary re-renders - Added `useMemo` for memoizing grid component props to reduce re-render overhead - Optimized navigation with `setTimeout` delays to improve user experience - Enhanced component with `React.memo` for additional performance benefits Event Source Manager Improvements: - Fixed Safari-specific performance optimizations with batch size and flush delay adjustments - Improved buffer management with pre-allocated structures for better memory efficiency - Enhanced reconnection logic with exponential backoff and maximum attempt limits - Added connection event logging for better debugging and monitoring - Optimized shallow equality checks to reduce unnecessary state updates Test Updates: - Updated tests to mock new custom hooks instead of `useEventStore` - Fixed navigation tests by adding proper timer handling with `jest.advanceTimersByTime` - Enhanced test coverage for edge cases and error scenarios - Improved mocking strategy for better isolation and reliability - Added comprehensive testing for event source reconnection and error handling Performance Optimizations: - Safari-specific batch processing improvements (larger batch sizes, longer delays) - Reduced React re-renders through memoization and callback optimization - Improved buffer flushing logic with smarter scheduling - Enhanced equality checking to skip unnecessary state updates Bug Fixes: - Fixed navigation timeout handling in test environment - Corrected event processing for various edge cases - Improved error handling for API failures and network issues - Fixed timer management in test suites This refactoring improves both runtime performance and maintainability while ensuring backward compatibility with existing functionality.
- Add comprehensive test cases for all conditional branches in StatCard component - Test component behavior when onClick handler is not provided - Test cursor styles (pointer vs default) based on onClick prop - Test hover effect application only when onClick is provided - Test event propagation stopping for subtitle clicks - Handle both string and React element subtitle cases - Test component rendering without onClick and dynamicHeight props - Clean up mock functions between tests using beforeEach - Achieve 100% test coverage for statements, branches, functions, and lines The test suite now covers: 1. Default behavior without onClick prop 2. Event propagation control for subtitle interactions 3. Conditional styling (cursor and hover effects) 4. All subtitle rendering scenarios 5. Dynamic height configuration
…croll Summary Completely refactored the Objects component to address performance issues with large datasets. Replaced the original full-table rendering with a performant infinite scroll implementation using deferred calculations and optimized memoization. Changes 1. Performance Issues Identified - Original code rendered ALL objects simultaneously (1000+ DOM elements) - Heavy calculations triggered on every filter/sort change - UI blocking during user interactions - High memory usage with many React component instances 2. Optimization Strategy - Implemented infinite scroll instead of pagination for better UX - Used React's useDeferredValue for non-blocking calculations - Added aggressive memoization with React.memo, useMemo, and useCallback - Maintained only 30 initially visible objects with incremental loading 3. Technical Improvements Virtualization via Incremental Loading - `visibleCount` state manages visible objects (starts at 30) - Scroll listener automatically loads 30 more objects at 80% scroll position - No pagination controls needed - modern infinite scroll pattern Non-blocking Calculations - `useDeferredValue` for `searchQuery`, filter states, and sort parameters - Heavy computations (`filteredObjectNames`, `sortedObjectNames`) use deferred values - UI remains responsive during typing and filtering Component Optimization - `TableRowComponent` wrapped in `React.memo` with custom comparison - All expensive calculations memoized with dependency optimization - Event handlers memoized with `useCallback` - Status icons and displays individually memoized Memory Management - Only `visibleCount` components rendered at any time - Reduced DOM nodes from 1000+ to ~30-60 - Efficient cleanup of event listeners 4. User Experience Enhancements - Infinite scroll: Smooth scrolling without page breaks - Live filtering: Responsive UI during search/filter operations - Visual feedback: Loading indicator during data fetch - Status display: "Showing X of Y objects" counter - Maintained all features: Filters, sorting, actions, selections Technical Details Key Hooks Used - `useDeferredValue`: For non-blocking state updates - `useMemo`: For expensive filtered/sorted calculations - `useCallback`: For event handler stability - `useRef`: For DOM references and mounted checks - `React.memo`: For component re-render prevention Performance Patterns 1. Lazy loading: Objects load as user scrolls 2. Debounced computations: Filter/sort calculations deferred 3. Component memoization: Prevent unnecessary re-renders 4. Event optimization: Scroll listeners properly managed Files Modified - `src/components/Objects.jsx`: Complete refactor Impact - Before: UI lag with 100+ objects, blocking during filters - After: Smooth performance with 1000+ objects, responsive filtering - User experience: Modern infinite scroll like social media feeds - Maintainability: Clean, optimized code with performance patterns This refactor transforms the Objects table from a performance bottleneck to a highly optimized, scalable component capable of handling large datasets with excellent user experience.
…tterns
- Add useNamespaceData custom hook to memoize namespace calculations at store level
- Implement React.memo for StatusDot and NamespaceTableRow components to prevent unnecessary re-renders
- Add useDeferredValue for filters and sorting to improve UI responsiveness
- Implement progressive pagination with infinite scroll (50 items per batch)
- Extract SortableTableCell as reusable memoized component to reduce code duplication
- Add useCallback for all event handlers to prevent function recreation
- Optimize namespace and status calculations using for loops instead of array methods
- Add sticky table header with proper z-index
- Implement scroll event listener with proper cleanup
- Add loading indicator for progressive data loading
- Display visible/total namespaces count
- Improve layout with flexbox and overflow handling to prevent unnecessary re-layouts
- Add isMounted ref for cleanup on unmount
- Memoize total count calculation in table rows
- Remove {replace: true} from navigate calls to maintain original behavior and fix failing tests
Performance improvements:
- Faster initial render through deferred value updates
- Smooth scrolling with progressive loading
- Page now performs as fast as Objects page despite aggregating data
- Added justifyContent: 'center' and width: '100%' to the subtitle container in GridNodes component - This ensures the "Frozen: X | Unfrozen: Y" text and loading indicator are properly centered horizontally - Maintains the loading spinner functionality while fixing the alignment issue introduced in the refactor
- Implement React.memo for StateIcon, BeatingIcon, and HeartbeatRow components to prevent unnecessary re-renders - Add useDeferredValue for all filter states and sorting to improve UI responsiveness - Introduce lazy loading/infinite scroll with visibleCount state and scroll handler - Memoize all event handlers with useCallback to maintain stable references - Optimize loops by replacing forEach with for loops in useMemo computations - Improve EventSource management with eventStarted ref to prevent duplicate connections - Add loading states and empty results message for better UX - Use useRef for isMounted check to prevent state updates after unmounting - Refactor columns definition into constant array for maintainability - Optimize URL parameter handling with debounced navigation updates - Enhance cache mechanism for stopped streams with efficient updates Performance improvements: - Reduced render cycles by memoizing components and callbacks - Improved scroll performance with lazy loading - Better filter responsiveness with deferred values - Efficient data processing with optimized loops
- Added mobile detection with `useMediaQuery(theme.breakpoints.down("md"))`
- Reorganized filter layout using MUI Grid system for better mobile responsiveness
- Filters now display in single column on mobile, two columns on tablet, and four columns on desktop
- Added Collapse component to toggle filter visibility with smooth animation
- Updated filter form controls to use smaller size (`size="small"`) on mobile
- Modified filter button to show icon only on mobile for better space utilization
- Updated "Actions" button to display selected object count and use full width on mobile
- Added responsive padding adjustments for different screen sizes
- Preserved desktop layout and functionality exactly as before
The changes ensure the filter section remains usable and readable on mobile devices while maintaining the exact same desktop experience.
- Added responsive grid layout for filters to ensure readability on mobile devices - Used Collapse component to toggle filters visibility - Modified "Filters" button to always keep text in DOM (hidden visually on mobile) to fix test failure - Added media queries to detect mobile viewports - Reduced form field size on mobile for better usability - Preserved existing desktop layout and functionality - Added FilterListIcon for better visual recognition - Improved overall mobile experience while maintaining test compatibility
…click ## Problem Users were immediately redirected to `/auth-choice` when clicking on login form fields, before entering credentials. ## Solution - **Removed `focus` event listener** in `OidcInitializer` that triggered aggressive auth checks - **Kept only `visibilitychange`** for auth checks when tab becomes visible (not on every click) - **Added auth page detection** to skip checks on `/auth-*` routes - **Updated tests** with proper mocks for `decodeToken` exports ## Impact - Users can click in login form without interruption - Auth still checks on tab resume (security maintained) - OIDC/basic auth flows work correctly - All tests pass Fixes: Immediate redirect when clicking login form
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