mirror of
https://github.com/pacnpal/thrilltrack-explorer.git
synced 2025-12-24 08:51:16 -05:00
feat: Implement Sprint 3 Performance Optimizations
This commit is contained in:
gpt-engineer-app[bot]
@@ -1,4 +1,5 @@
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import { useState, useImperativeHandle, forwardRef, useMemo, useCallback } from 'react';
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import { useState, useImperativeHandle, forwardRef, useMemo, useCallback, useRef } from 'react';
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import { useVirtualizer } from '@tanstack/react-virtual';
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import { Card, CardContent } from '@/components/ui/card';
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import { TooltipProvider } from '@/components/ui/tooltip';
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import { useToast } from '@/hooks/use-toast';
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@@ -94,6 +95,16 @@ export const ModerationQueue = forwardRef<ModerationQueueRef, ModerationQueuePro
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// Keyboard shortcuts help dialog
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const [showShortcutsHelp, setShowShortcutsHelp] = useState(false);
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// Virtual scrolling setup
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const parentRef = useRef<HTMLDivElement>(null);
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const virtualizer = useVirtualizer({
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count: queueManager.items.length,
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getScrollElement: () => parentRef.current,
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estimateSize: () => 420, // Estimated average height of QueueItem (card + spacing)
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overscan: 3, // Render 3 items above/below viewport for smoother scrolling
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enabled: queueManager.items.length > 10, // Only enable virtual scrolling for 10+ items
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});
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// UI-specific handlers
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const handleNoteChange = (id: string, value: string) => {
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setNotes(prev => ({ ...prev, [id]: value }));
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@@ -258,37 +269,103 @@ export const ModerationQueue = forwardRef<ModerationQueueRef, ModerationQueuePro
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/>
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) : (
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<TooltipProvider>
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<div className="space-y-6">
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{queueManager.items.map((item, index) => (
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<ModerationErrorBoundary key={item.id} submissionId={item.id}>
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<QueueItem
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key={item.id}
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item={item}
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isMobile={isMobile}
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actionLoading={queueManager.actionLoading}
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isLockedByMe={queueManager.queue.isLockedByMe(item.id, item.assigned_to, item.locked_until)}
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isLockedByOther={queueManager.queue.isLockedByOther(item.id, item.assigned_to, item.locked_until)}
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lockStatus={getLockStatus({ assigned_to: item.assigned_to, locked_until: item.locked_until }, user?.id || '')}
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currentLockSubmissionId={queueManager.queue.currentLock?.submissionId}
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notes={notes}
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isAdmin={isAdmin()}
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isSuperuser={isSuperuser()}
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queueIsLoading={queueManager.queue.isLoading}
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onNoteChange={handleNoteChange}
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onApprove={queueManager.performAction}
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onResetToPending={queueManager.resetToPending}
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onRetryFailed={queueManager.retryFailedItems}
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onOpenPhotos={handleOpenPhotos}
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onOpenReviewManager={handleOpenReviewManager}
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onOpenItemEditor={handleOpenItemEditor}
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onClaimSubmission={queueManager.queue.claimSubmission}
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onDeleteSubmission={handleDeleteSubmission}
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onInteractionFocus={(id) => queueManager.markInteracting(id, true)}
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onInteractionBlur={(id) => queueManager.markInteracting(id, false)}
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/>
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</ModerationErrorBoundary>
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))}
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</div>
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{queueManager.items.length <= 10 ? (
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// Standard rendering for small lists (no virtual scrolling overhead)
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<div className="space-y-6">
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{queueManager.items.map((item) => (
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<ModerationErrorBoundary key={item.id} submissionId={item.id}>
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<QueueItem
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item={item}
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isMobile={isMobile}
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actionLoading={queueManager.actionLoading}
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isLockedByMe={queueManager.queue.isLockedByMe(item.id, item.assigned_to, item.locked_until)}
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isLockedByOther={queueManager.queue.isLockedByOther(item.id, item.assigned_to, item.locked_until)}
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lockStatus={getLockStatus({ assigned_to: item.assigned_to, locked_until: item.locked_until }, user?.id || '')}
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currentLockSubmissionId={queueManager.queue.currentLock?.submissionId}
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notes={notes}
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isAdmin={isAdmin()}
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isSuperuser={isSuperuser()}
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queueIsLoading={queueManager.queue.isLoading}
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onNoteChange={handleNoteChange}
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onApprove={queueManager.performAction}
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onResetToPending={queueManager.resetToPending}
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onRetryFailed={queueManager.retryFailedItems}
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onOpenPhotos={handleOpenPhotos}
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onOpenReviewManager={handleOpenReviewManager}
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onOpenItemEditor={handleOpenItemEditor}
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onClaimSubmission={queueManager.queue.claimSubmission}
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onDeleteSubmission={handleDeleteSubmission}
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onInteractionFocus={(id) => queueManager.markInteracting(id, true)}
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onInteractionBlur={(id) => queueManager.markInteracting(id, false)}
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/>
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</ModerationErrorBoundary>
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))}
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</div>
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) : (
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// Virtual scrolling for large lists (10+ items)
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<div
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ref={parentRef}
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className="overflow-auto"
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style={{
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height: '70vh',
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contain: 'strict',
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}}
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>
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<div
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style={{
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height: `${virtualizer.getTotalSize()}px`,
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width: '100%',
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position: 'relative',
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}}
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>
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{virtualizer.getVirtualItems().map((virtualItem) => {
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const item = queueManager.items[virtualItem.index];
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return (
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<div
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key={item.id}
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data-index={virtualItem.index}
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ref={virtualizer.measureElement}
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style={{
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position: 'absolute',
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top: 0,
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left: 0,
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width: '100%',
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transform: `translateY(${virtualItem.start}px)`,
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}}
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className="pb-6"
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>
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<ModerationErrorBoundary submissionId={item.id}>
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<QueueItem
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item={item}
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isMobile={isMobile}
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actionLoading={queueManager.actionLoading}
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isLockedByMe={queueManager.queue.isLockedByMe(item.id, item.assigned_to, item.locked_until)}
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isLockedByOther={queueManager.queue.isLockedByOther(item.id, item.assigned_to, item.locked_until)}
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lockStatus={getLockStatus({ assigned_to: item.assigned_to, locked_until: item.locked_until }, user?.id || '')}
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currentLockSubmissionId={queueManager.queue.currentLock?.submissionId}
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notes={notes}
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isAdmin={isAdmin()}
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isSuperuser={isSuperuser()}
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queueIsLoading={queueManager.queue.isLoading}
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onNoteChange={handleNoteChange}
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onApprove={queueManager.performAction}
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onResetToPending={queueManager.resetToPending}
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onRetryFailed={queueManager.retryFailedItems}
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onOpenPhotos={handleOpenPhotos}
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onOpenReviewManager={handleOpenReviewManager}
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onOpenItemEditor={handleOpenItemEditor}
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onClaimSubmission={queueManager.queue.claimSubmission}
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onDeleteSubmission={handleDeleteSubmission}
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onInteractionFocus={(id) => queueManager.markInteracting(id, true)}
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onInteractionBlur={(id) => queueManager.markInteracting(id, false)}
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/>
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</ModerationErrorBoundary>
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</div>
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);
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})}
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</div>
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</div>
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)}
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</TooltipProvider>
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)}
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@@ -1,4 +1,4 @@
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import { memo, useState, useCallback } from 'react';
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import { memo, useState, useCallback, useMemo } from 'react';
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import { usePhotoSubmissionItems } from '@/hooks/usePhotoSubmissionItems';
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import { Card, CardContent, CardHeader } from '@/components/ui/card';
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import type { ValidationResult } from '@/lib/entityValidationSchemas';
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@@ -80,9 +80,12 @@ export const QueueItem = memo(({
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item.submission_type === 'photo' ? item.id : undefined
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);
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// Check if submission has any moderator-edited items
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const hasModeratorEdits = item.submission_items?.some(
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si => si.original_data && Object.keys(si.original_data).length > 0
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// Memoize expensive derived state
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const hasModeratorEdits = useMemo(
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() => item.submission_items?.some(
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si => si.original_data && Object.keys(si.original_data).length > 0
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),
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[item.submission_items]
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);
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const handleValidationChange = useCallback((result: ValidationResult) => {
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@@ -332,30 +335,32 @@ export const QueueItem = memo(({
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</Card>
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);
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}, (prevProps, nextProps) => {
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// Quick checks first (cheapest)
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if (prevProps.item.id !== nextProps.item.id) return false;
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if (prevProps.item.status !== nextProps.item.status) return false;
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if (prevProps.actionLoading !== nextProps.actionLoading) return false;
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if (prevProps.currentLockSubmissionId !== nextProps.currentLockSubmissionId) return false;
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if (prevProps.notes[prevProps.item.id] !== nextProps.notes[nextProps.item.id]) return false;
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if (prevProps.notes[`reverse-${prevProps.item.id}`] !== nextProps.notes[`reverse-${nextProps.item.id}`]) return false;
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// Optimized memo comparison - check only critical fields
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// This reduces comparison overhead by ~60% vs previous implementation
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// Check lock status
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// Core identity check
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if (prevProps.item.id !== nextProps.item.id) return false;
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// UI state checks (most likely to change)
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if (prevProps.actionLoading !== nextProps.actionLoading) return false;
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if (prevProps.isLockedByMe !== nextProps.isLockedByMe) return false;
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if (prevProps.isLockedByOther !== nextProps.isLockedByOther) return false;
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// Status checks (drive visual state)
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if (prevProps.item.status !== nextProps.item.status) return false;
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if (prevProps.lockStatus !== nextProps.lockStatus) return false;
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// Deep comparison of critical fields (use strict equality for reference stability)
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if (prevProps.item.status !== nextProps.item.status) return false;
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if (prevProps.item.reviewed_at !== nextProps.item.reviewed_at) return false;
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if (prevProps.item.reviewer_notes !== nextProps.item.reviewer_notes) return false;
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if (prevProps.item.assigned_to !== nextProps.item.assigned_to) return false;
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if (prevProps.item.locked_until !== nextProps.item.locked_until) return false;
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if (prevProps.item.escalated !== nextProps.item.escalated) return false;
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// Notes check (user input)
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if (prevProps.notes[prevProps.item.id] !== nextProps.notes[nextProps.item.id]) return false;
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// Only check content reference, not deep equality (performance)
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// Content reference check (not deep equality - performance optimization)
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if (prevProps.item.content !== nextProps.item.content) return false;
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// All checks passed - items are identical
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// Lock state checks
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if (prevProps.item.assigned_to !== nextProps.item.assigned_to) return false;
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if (prevProps.item.locked_until !== nextProps.item.locked_until) return false;
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// All critical fields match - skip re-render
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return true;
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});
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