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- Remove nested git repository from bugulma/frontend/.git - Add all frontend files to main repository tracking - Convert from separate frontend/backend repos to unified monorepo - Preserve all frontend code and development history as tracked files - Eliminate nested repository complexity for simpler development workflow This creates a proper monorepo structure with frontend and backend coexisting in the same repository for easier development and deployment.
173 lines
4.8 KiB
Markdown
173 lines
4.8 KiB
Markdown
# Memoization Audit - Complete Review
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## Summary
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This document details all memoization optimizations applied across the codebase to prevent unnecessary re-renders and improve performance.
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## Components with React.memo Added
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### Organization Components
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- ✅ **OrganizationContent** - Memoized with useCallback for handlers and useMemo for ai props
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- ✅ **ProposalList** - Memoized with useMemo for arrays and useCallback for functions
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- ✅ **ResourceFlowList** - Memoized with useMemo for filtered flows
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- ✅ **ResourceFlowCard** - Memoized
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- ✅ **KeyMetrics** - Memoized
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- ✅ **ContactDetails** - Memoized
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- ✅ **ContactInfoLine** - Memoized
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- ✅ **AIAnalysisTab** - Memoized
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- ✅ **WebIntelTab** - Memoized
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- ✅ **IntelligenceModule** - Memoized
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- ✅ **CreateProposalModal** - Memoized with useCallback
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### Map Components
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- ✅ **SidebarContent** - Memoized
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- ✅ **SidebarPreview** - Memoized with useMemo for sector map
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- ✅ **SearchSuggestions** - Memoized
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- ✅ **HistoricalContextAI** - Memoized with useCallback
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### Matches Components
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- ✅ **MatchesList** - Memoized
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- ✅ **MatchCard** - Memoized
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### User Components
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- ✅ **MyOrganizations** - Memoized with useMemo for sector map
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### Admin Components
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- ✅ **DashboardStats** - Memoized
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- ✅ **StatCard** - Memoized
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- ✅ **SupplyChainAnalysis** - Memoized with useMemo for arrays and ResourceList
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- ✅ **EconomicGraph** - Memoized with useMemo for node map and useCallback for findNode
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- ✅ **OrganizationTable** - Memoized
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### Chatbot Components
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- ✅ **ChatHistory** - Memoized
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- ✅ **ChatInput** - Memoized with useCallback
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- ✅ **TypingIndicator** - Memoized
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- ✅ **MarkdownRenderer** - Already had useMemo, added React.memo
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### Form Components
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- ✅ **Step1** - Added useMemo for translatedSectors
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## Hooks Optimized
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### useDirectSymbiosis
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- ✅ Added useMemo for organization map (O(1) lookup instead of O(n) find)
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- ✅ Memoized providers and consumers arrays
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### useI18n
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- ✅ Memoized Intl.PluralRules to avoid recreation
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- ✅ Optimized regex creation in translation replacement
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### useOrganizationFilter
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- ✅ Already had useMemo, added safe array checks
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## Key Optimizations Applied
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### 1. React.memo for Components
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Components that receive props and don't need to re-render when parent state changes are wrapped in `React.memo`.
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### 2. useMemo for Expensive Calculations
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- Array filtering/mapping operations
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- Object/Map creation
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- Sector/organization lookups
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- Translated data
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### 3. useCallback for Event Handlers
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- onClick handlers
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- Form submission handlers
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- Status update handlers
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- Navigation handlers
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### 4. Map-Based Lookups
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Replaced O(n) `.find()` operations with O(1) Map lookups:
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- Sector lookups in MyOrganizations
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- Sector lookups in SidebarPreview
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- Organization lookups in useDirectSymbiosis
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- Node lookups in EconomicGraph
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### 5. Memoized Object Props
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- `aiProps` object in OrganizationContent to prevent PartnershipHub re-renders
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- Filtered arrays in ResourceFlowList
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- Proposal arrays in ProposalList
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## Performance Impact
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### Before Optimizations:
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- Components re-rendered on every parent state change
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- Arrays/objects recreated on every render
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- O(n) lookups in render loops
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- Event handlers recreated causing child re-renders
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### After Optimizations:
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- Components only re-render when props actually change
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- Expensive calculations cached with useMemo
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- O(1) lookups instead of O(n) searches
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- Stable event handlers prevent unnecessary child updates
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## Components Already Memoized (No Changes Needed)
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These components were already properly memoized:
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- OrganizationHeader
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- OrganizationDetailsGrid
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- OrganizationSidebar
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- PartnershipHub
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- SimilarOrganizations
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- DirectMatchesDisplay
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- DirectMatchesTab
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- MatchCard (organization folder)
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- ProposalCard
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- HistoricalContextCard
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- OrganizationMarkers
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- HistoricalMarkers
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- SymbiosisLines
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- MapSidebar
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- MapHeader
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- MapFilters
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- MapControls
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- SidebarList
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- TopBar
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- Footer
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- All landing page components
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- All heritage components
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## Best Practices Applied
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1. **Memoize components that receive props** - Prevents re-renders when parent state changes
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2. **Memoize expensive calculations** - useMemo for arrays, objects, maps
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3. **Memoize event handlers** - useCallback to prevent child re-renders
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4. **Use Map for lookups** - O(1) instead of O(n) for repeated lookups
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5. **Memoize object props** - Prevents child re-renders from new object references
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## Testing Recommendations
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1. Use React DevTools Profiler to verify re-render reduction
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2. Monitor component render counts in development
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3. Test with large datasets to see performance improvements
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4. Verify no functionality broken by memoization
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## Future Considerations
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1. Consider React.lazy for code splitting large components
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2. Virtual scrolling for long lists (SidebarList, MatchesList)
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3. Suspense boundaries for async components
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4. Web Workers for heavy calculations (graph generation, filtering)
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