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import { useQueryClient } from '@tanstack/react-query';
import type { QueryClient } from '@tanstack/react-query';
import { useDebouncedCallback } from '../usePerformanceOptimizations';
import { useLogger } from '@common/utils/logger/useLogger';
interface InvalidationBatch {
queryKeys: Array<readonly unknown[]>;
timestamp: number;
}
interface CacheInvalidationOptions {
batchDelay?: number;
debounceDelay?: number;
maxBatchSize?: number;
enableLogging?: boolean;
}
interface InvalidationMetrics {
totalInvalidations: number;
batchedInvalidations: number;
debouncedInvalidations: number;
lastInvalidation: number;
}
/**
* Optimized cache invalidation hook with batching and debouncing
* Reduces redundant invalidations and improves performance
*/
export const useCacheInvalidation = (options: CacheInvalidationOptions = {}) => {
const {
batchDelay = 100,
debounceDelay = 500,
maxBatchSize = 50,
enableLogging = process.env.NODE_ENV === 'development',
} = options;
const queryClient = useQueryClient();
const log = useLogger('useCacheInvalidation');
const batchRef = useRef<InvalidationBatch>({ queryKeys: [], timestamp: 0 });
const metricsRef = useRef<InvalidationMetrics>({
totalInvalidations: 0,
batchedInvalidations: 0,
debouncedInvalidations: 0,
lastInvalidation: 0,
});
const batchTimeoutRef = useRef<NodeJS.Timeout>();
// Process batched invalidations
const processBatch = useCallback(async () => {
const batch = batchRef.current;
if (batch.queryKeys.length === 0) return;
const startTime = performance.now();
const queryKeys = [...batch.queryKeys];
batchRef.current = { queryKeys: [], timestamp: 0 };
try {
// Group similar query keys to optimize invalidation
const groupedKeys = groupQueryKeys(queryKeys);
// Invalidate each group
await Promise.all(
groupedKeys.map(group =>
queryClient.invalidateQueries({ queryKey: group.baseKey })
)
);
const duration = performance.now() - startTime;
metricsRef.current.batchedInvalidations += queryKeys.length;
metricsRef.current.lastInvalidation = Date.now();
if (enableLogging) {
log.debug('Batch invalidation completed', {
action: 'batch_invalidation',
metadata: {
batchSize: queryKeys.length,
groupCount: groupedKeys.length,
duration: duration.toFixed(2),
},
});
}
} catch (error) {
log.error('Batch invalidation failed', {
action: 'batch_invalidation_error',
metadata: {
batchSize: queryKeys.length,
error: error instanceof Error ? error.message : 'Unknown error',
},
}, error instanceof Error ? error : new Error(String(error)));
}
}, [queryClient, enableLogging, log]);
// Add query key to batch
const addToBatch = useCallback((queryKey: readonly unknown[]) => {
const now = Date.now();
// If batch is empty or timeout expired, start new batch
if (batchRef.current.queryKeys.length === 0 ||
now - batchRef.current.timestamp > batchDelay) {
batchRef.current = { queryKeys: [queryKey], timestamp: now };
// Clear existing timeout
if (batchTimeoutRef.current) {
clearTimeout(batchTimeoutRef.current);
}
// Set new timeout
batchTimeoutRef.current = setTimeout(processBatch, batchDelay);
} else {
// Add to existing batch
batchRef.current.queryKeys.push(queryKey);
// Process immediately if batch is full
if (batchRef.current.queryKeys.length >= maxBatchSize) {
if (batchTimeoutRef.current) {
clearTimeout(batchTimeoutRef.current);
}
processBatch();
}
}
}, [batchDelay, maxBatchSize, processBatch]);
// Immediate invalidation (no batching)
const invalidateImmediate = useCallback(
async (queryKey: readonly unknown[]) => {
const startTime = performance.now();
try {
await queryClient.invalidateQueries({ queryKey });
metricsRef.current.totalInvalidations++;
metricsRef.current.lastInvalidation = Date.now();
if (enableLogging) {
const duration = performance.now() - startTime;
log.debug('Immediate invalidation completed', {
action: 'immediate_invalidation',
metadata: {
queryKey,
duration: duration.toFixed(2),
},
});
}
} catch (error) {
log.error('Immediate invalidation failed', {
action: 'immediate_invalidation_error',
metadata: {
queryKey,
error: error instanceof Error ? error.message : 'Unknown error',
},
}, error instanceof Error ? error : new Error(String(error)));
}
},
[queryClient, enableLogging, log]
);
// Batched invalidation
const invalidateBatched = useCallback(
(queryKey: readonly unknown[]) => {
metricsRef.current.totalInvalidations++;
addToBatch(queryKey);
},
[addToBatch]
);
// Debounced invalidation for specific query types
const invalidateNewsletterList = useDebouncedCallback(
async () => {
await invalidateImmediate(['newsletters']);
metricsRef.current.debouncedInvalidations++;
},
debounceDelay
);
const invalidateUnreadCount = useDebouncedCallback(
async () => {
await invalidateImmediate(['unreadCount']);
metricsRef.current.debouncedInvalidations++;
},
debounceDelay
);
const invalidateTags = useDebouncedCallback(
async () => {
await invalidateImmediate(['tags']);
metricsRef.current.debouncedInvalidations++;
},
debounceDelay
);
const invalidateNewsletterSources = useDebouncedCallback(
async () => {
await invalidateImmediate(['newsletter-sources']);
metricsRef.current.debouncedInvalidations++;
},
debounceDelay
);
// Smart invalidation based on operation type
const invalidateByOperation = useCallback(
async (operation: string, entityId?: string) => {
const invalidations: Array<() => void | Promise<void>> = [];
switch (operation) {
case 'newsletter-archive':
case 'newsletter-unarchive':
case 'newsletter-like':
case 'newsletter-unlike':
if (entityId) {
invalidateImmediate(['newsletter', entityId]);
}
invalidations.push(invalidateNewsletterList);
invalidations.push(invalidateUnreadCount);
break;
case 'newsletter-mark-read':
case 'newsletter-mark-unread':
if (entityId) {
invalidateImmediate(['newsletter', entityId]);
}
invalidations.push(invalidateUnreadCount);
// Don't invalidate full list for read status changes
break;
case 'newsletter-tag-add':
case 'newsletter-tag-remove':
if (entityId) {
invalidateImmediate(['newsletter', entityId]);
}
invalidations.push(invalidateTags);
invalidations.push(invalidateNewsletterList);
break;
case 'tag-create':
case 'tag-update':
case 'tag-delete':
invalidations.push(invalidateTags);
invalidations.push(invalidateNewsletterList);
break;
case 'newsletter-source-update':
case 'newsletter-source-archive':
invalidations.push(invalidateNewsletterSources);
invalidations.push(invalidateNewsletterList);
break;
case 'bulk-operation':
// For bulk operations, use batched invalidation
invalidateBatched(['newsletters']);
invalidations.push(invalidateUnreadCount);
invalidations.push(invalidateTags);
break;
default:
// Fallback to full invalidation
invalidations.push(invalidateNewsletterList);
break;
}
// Execute all invalidations
await Promise.all(invalidations.map(fn => fn()));
},
[
invalidateImmediate,
invalidateBatched,
invalidateNewsletterList,
invalidateUnreadCount,
invalidateTags,
invalidateNewsletterSources,
]
);
// Get current metrics
const getMetrics = useCallback(() => ({
...metricsRef.current,
pendingBatchSize: batchRef.current.queryKeys.length,
}), []);
// Force process any pending batches
const flush = useCallback(async () => {
if (batchTimeoutRef.current) {
clearTimeout(batchTimeoutRef.current);
}
await processBatch();
}, [processBatch]);
// Cleanup on unmount
useMemo(() => {
return () => {
if (batchTimeoutRef.current) {
clearTimeout(batchTimeoutRef.current);
}
};
}, []);
return {
// Core invalidation methods
invalidateImmediate,
invalidateBatched,
invalidateByOperation,
// Specific debounced invalidations
invalidateNewsletterList,
invalidateUnreadCount,
invalidateTags,
invalidateNewsletterSources,
// Utilities
getMetrics,
flush,
};
};
/**
* Group similar query keys to optimize invalidation
* This reduces the number of invalidation calls by finding common prefixes
*/
function groupQueryKeys(queryKeys: Array<readonly unknown[]>): Array<{
baseKey: readonly unknown[];
keys: Array<readonly unknown[]>;
}> {
const groups = new Map<string, Array<readonly unknown[]>>();
for (const queryKey of queryKeys) {
if (queryKey.length === 0) continue;
// Use first element as group key
const groupKey = JSON.stringify(queryKey[0]);
if (!groups.has(groupKey)) {
groups.set(groupKey, []);
}
groups.get(groupKey)!.push(queryKey);
}
return Array.from(groups.entries()).map(([_, keys]) => {
// Find the most specific common prefix
const baseKey = keys.length === 1
? keys[0]
: [keys[0][0]]; // Use just the first element as base
return { baseKey, keys };
});
}
/**
* Type-safe cache invalidation for specific query types
*/
export interface TypedCacheInvalidation {
newsletter: (id: string) => Promise<void>;
newsletters: () => void;
unreadCount: () => void;
tags: () => void;
newsletterSources: () => void;
readingQueue: () => Promise<void>;
}
/**
* Hook for type-safe cache invalidation
*/
export const useTypedCacheInvalidation = (): TypedCacheInvalidation => {
const {
invalidateImmediate,
invalidateNewsletterList,
invalidateUnreadCount,
invalidateTags,
invalidateNewsletterSources,
} = useCacheInvalidation();
return {
newsletter: (id: string) => invalidateImmediate(['newsletter', id]),
newsletters: invalidateNewsletterList,
unreadCount: invalidateUnreadCount,
tags: invalidateTags,
newsletterSources: invalidateNewsletterSources,
readingQueue: () => invalidateImmediate(['reading-queue']),
};
};
/**
* Global cache invalidation instance for use outside of React components
*/
let globalQueryClient: QueryClient | null = null;
export const setGlobalQueryClient = (client: QueryClient) => {
globalQueryClient = client;
};
export const globalCacheInvalidation = {
invalidateNewsletter: (id: string) => {
if (globalQueryClient) {
globalQueryClient.invalidateQueries({ queryKey: ['newsletter', id] });
}
},
invalidateNewsletters: () => {
if (globalQueryClient) {
globalQueryClient.invalidateQueries({ queryKey: ['newsletters'] });
}
},
invalidateUnreadCount: () => {
if (globalQueryClient) {
globalQueryClient.invalidateQueries({ queryKey: ['unreadCount'] });
}
},
};
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