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NewsletterWithRelations,
PaginatedResponse,
ReadingQueueItem,
Tag,
} from '@common/types';
import { QueryClient } from '@tanstack/react-query';
import { logger } from './logger';
import { queryKeyFactory } from './queryKeyFactory';
interface CacheManagerConfig {
enableOptimisticUpdates?: boolean;
enableCrossFeatureSync?: boolean;
enablePerformanceLogging?: boolean;
}
export class SimpleCacheManager {
public queryClient: QueryClient;
private config: CacheManagerConfig;
private log = logger;
constructor(queryClient: QueryClient, config: CacheManagerConfig = {}) {
this.queryClient = queryClient;
this.config = {
enableOptimisticUpdates: true,
enableCrossFeatureSync: true,
enablePerformanceLogging: false,
...config,
};
}
// Update newsletter in cache
updateNewsletterInCache(update: { id: string; updates: Partial<NewsletterWithRelations> }): void {
try {
this.log.debug('Updating newsletter in cache', {
action: 'update_newsletter_cache_start',
metadata: {
newsletterId: update.id,
updates: update.updates,
updateFields: Object.keys(update.updates),
},
});
// Update in all newsletter list queries using predicate
this.queryClient.setQueriesData<PaginatedResponse<NewsletterWithRelations>>(
{
predicate: (query) => {
const key = query.queryKey;
return (
Array.isArray(key) &&
key[0] === 'newsletters' &&
key[1] === 'list' &&
key[2] !== 'infinite'
);
},
},
(oldData: PaginatedResponse<NewsletterWithRelations> | undefined) => {
if (!oldData || !oldData.data || !Array.isArray(oldData.data)) return oldData;
return {
...oldData,
data: oldData.data.map((newsletter: NewsletterWithRelations) =>
newsletter.id === update.id ? { ...newsletter, ...update.updates } : newsletter
),
};
}
);
// Update in infinite queries (for Inbox view) using predicate
this.queryClient.setQueriesData<{ pages: PaginatedResponse<NewsletterWithRelations>[] }>(
{
predicate: (query) => {
const key = query.queryKey;
return (
Array.isArray(key) &&
key[0] === 'newsletters' &&
key[1] === 'infinite'
);
},
},
(oldData) => {
if (!oldData || !oldData.pages) return oldData;
let foundAndUpdated = false;
const updatedData = {
...oldData,
pages: oldData.pages.map((page) => ({
...page,
data: page.data.map((newsletter: NewsletterWithRelations) => {
if (newsletter.id === update.id) {
foundAndUpdated = true;
this.log.debug('Found newsletter in infinite query page', {
action: 'update_infinite_query',
metadata: {
newsletterId: update.id,
oldValues: {
is_read: newsletter.is_read,
is_liked: newsletter.is_liked,
is_archived: newsletter.is_archived,
},
newValues: update.updates,
},
});
return { ...newsletter, ...update.updates };
}
return newsletter;
}),
})),
};
if (!foundAndUpdated) {
this.log.warn('Newsletter not found in infinite query', {
action: 'update_infinite_query_not_found',
metadata: { newsletterId: update.id },
});
}
return updatedData;
}
);
// Update individual newsletter query if it exists
const detailQueryKey = queryKeyFactory.newsletters.detail(update.id);
this.queryClient.setQueryData<NewsletterWithRelations | undefined>(
detailQueryKey,
(oldData) => {
if (!oldData) return oldData;
return { ...oldData, ...update.updates };
}
);
// Cross-feature sync: Update newsletter in reading queue if it exists there
if (this.config.enableCrossFeatureSync) {
this.queryClient.setQueriesData<ReadingQueueItem[] | undefined>(
{ queryKey: queryKeyFactory.queue.all() },
(oldData) => {
if (!Array.isArray(oldData)) return oldData;
return oldData.map((queueItem) =>
queueItem.newsletter?.id === update.id
? {
...queueItem,
newsletter: { ...queueItem.newsletter, ...update.updates },
}
: queueItem
);
}
);
}
if (this.config.enablePerformanceLogging) {
this.log.debug('Newsletter cache updated', {
action: 'update_newsletter_cache',
metadata: {
newsletterId: update.id,
updatedFields: Object.keys(update.updates),
},
});
}
} catch (error) {
this.log.error(
'Failed to update newsletter in cache',
{
action: 'update_newsletter_cache_error',
metadata: { newsletterId: update.id },
},
error instanceof Error ? error : new Error(String(error))
);
}
}
// Batch update newsletters in cache
batchUpdateNewsletters(
updates: Array<{ id: string; updates: Partial<NewsletterWithRelations> }>
): void {
try {
this.log.debug('Starting batch newsletter update', {
action: 'batch_update_start',
metadata: {
count: updates.length,
newsletterIds: updates.map((u) => u.id),
updateFields: updates.length > 0 ? Object.keys(updates[0].updates) : [],
},
});
// Create a map for efficient lookup
const updateMap = new Map(updates.map((u) => [u.id, u.updates]));
// Update in all newsletter list queries using predicate
this.queryClient.setQueriesData<PaginatedResponse<NewsletterWithRelations>>(
{
predicate: (query) => {
const key = query.queryKey;
return (
Array.isArray(key) &&
key[0] === 'newsletters' &&
key[1] === 'list' &&
key[2] !== 'infinite'
);
},
},
(oldData) => {
if (!oldData || !oldData.data || !Array.isArray(oldData.data)) return oldData;
return {
...oldData,
data: oldData.data.map((newsletter: NewsletterWithRelations) => {
const updates = updateMap.get(newsletter.id);
return updates ? { ...newsletter, ...updates } : newsletter;
}),
};
}
);
// Update in infinite queries (for Inbox view) using predicate
this.queryClient.setQueriesData<{ pages: PaginatedResponse<NewsletterWithRelations>[] }>(
{
predicate: (query) => {
const key = query.queryKey;
return (
Array.isArray(key) &&
key[0] === 'newsletters' &&
key[1] === 'infinite'
);
},
},
(oldData) => {
if (!oldData || !oldData.pages) return oldData;
let updateCount = 0;
const updatedData = {
...oldData,
pages: oldData.pages.map((page) => ({
...page,
data: page.data.map((newsletter: NewsletterWithRelations) => {
const updates = updateMap.get(newsletter.id);
if (updates) {
updateCount++;
}
return updates ? { ...newsletter, ...updates } : newsletter;
}),
})),
};
this.log.debug('Batch update in infinite queries', {
action: 'batch_update_infinite',
metadata: {
totalPages: oldData.pages.length,
updatedCount: updateCount,
requestedCount: updates.length,
},
});
return updatedData;
}
);
// Update individual newsletter queries
updates.forEach(({ id, updates }) => {
const detailQueryKey = queryKeyFactory.newsletters.detail(id);
this.queryClient.setQueryData<NewsletterWithRelations | undefined>(
detailQueryKey,
(oldData) => {
if (!oldData) return oldData;
return { ...oldData, ...updates };
}
);
});
// Cross-feature sync: Update newsletters in reading queue
if (this.config.enableCrossFeatureSync) {
this.queryClient.setQueriesData<ReadingQueueItem[] | undefined>(
{
predicate: (query) => {
const key = query.queryKey;
return Array.isArray(key) && key[0] === 'queue';
},
},
(oldData) => {
if (!Array.isArray(oldData)) return oldData;
return oldData.map((queueItem) => {
if (queueItem.newsletter) {
const updates = updateMap.get(queueItem.newsletter.id);
if (updates) {
return {
...queueItem,
newsletter: { ...queueItem.newsletter, ...updates },
};
}
}
return queueItem;
});
}
);
}
if (this.config.enablePerformanceLogging) {
this.log.debug('Batch newsletter cache updated', {
action: 'batch_update_newsletter_cache',
metadata: {
count: updates.length,
newsletterIds: updates.map((u) => u.id),
},
});
}
} catch (error) {
this.log.error(
'Failed to batch update newsletters in cache',
{
action: 'batch_update_newsletter_cache_error',
metadata: { updateCount: updates.length },
},
error instanceof Error ? error : new Error(String(error))
);
}
}
// Reading queue operations
updateReadingQueueInCache(operation: {
type: 'add' | 'remove' | 'reorder' | 'updateTags' | 'revert';
newsletterId?: string;
queueItemId?: string;
updates?: { id: string; position: number }[];
tagIds?: string[];
queueItems?: ReadingQueueItem[];
userId: string;
}): void {
const queueQueryKey = queryKeyFactory.queue.list(operation.userId);
switch (operation.type) {
case 'add':
// For add operations, we'll just invalidate to refetch
// since we need full newsletter data
this.queryClient.invalidateQueries({ queryKey: queueQueryKey });
break;
case 'remove':
if (operation.queueItemId) {
this.queryClient.setQueryData<ReadingQueueItem[]>(queueQueryKey, (oldData = []) =>
oldData.filter((item) => item.id !== operation.queueItemId)
);
}
break;
case 'reorder':
if (operation.updates) {
this.queryClient.setQueryData<ReadingQueueItem[]>(queueQueryKey, (oldData = []) => {
const reorderedData = [...oldData];
operation.updates!.forEach(({ id, position }) => {
const itemIndex = reorderedData.findIndex((item) => item.id === id);
if (itemIndex !== -1) {
reorderedData[itemIndex] = {
...reorderedData[itemIndex],
position,
};
}
});
return reorderedData.sort((a, b) => a.position - b.position);
});
}
break;
case 'updateTags':
if (operation.newsletterId && operation.tagIds) {
this.queryClient.setQueryData<ReadingQueueItem[]>(queueQueryKey, (oldData = []) =>
oldData.map((item) =>
item.newsletter_id === operation.newsletterId
? {
...item,
newsletter: {
...item.newsletter,
tags: operation.tagIds!.map((tagId) => ({
id: tagId,
name: '',
color: '#808080',
user_id: operation.userId,
created_at: new Date().toISOString(),
updated_at: new Date().toISOString(),
})),
},
}
: item
)
);
}
break;
case 'revert':
if (operation.queueItems) {
this.queryClient.setQueryData<ReadingQueueItem[]>(queueQueryKey, operation.queueItems);
}
break;
}
}
// Update unread count optimistically without database hit
updateUnreadCountOptimistically(operation: {
type: 'mark-read' | 'mark-unread' | 'bulk-mark-read' | 'bulk-mark-unread' | 'archive' | 'unarchive' | 'delete';
newsletterIds: string[];
sourceId?: string;
}): void {
try {
this.log.debug('Updating unread count optimistically', {
action: 'update_unread_count_optimistic',
metadata: {
operation: operation.type,
newsletterIds: operation.newsletterIds,
sourceId: operation.sourceId,
},
});
// Get current unread count data
const unreadCountQueryKey = ['unreadCount', 'all'];
const currentData = this.queryClient.getQueryData<{ total: number; bySource: Record<string, number> }>(unreadCountQueryKey);
if (!currentData) {
this.log.debug('No current unread count data found, skipping optimistic update', {
action: 'update_unread_count_no_data',
});
return;
}
// Calculate the change based on operation type
let totalChange = 0;
const sourceChanges: Record<string, number> = {};
switch (operation.type) {
case 'mark-read':
case 'bulk-mark-read':
totalChange = -operation.newsletterIds.length;
if (operation.sourceId) {
sourceChanges[operation.sourceId] = -operation.newsletterIds.length;
}
break;
case 'mark-unread':
case 'bulk-mark-unread':
totalChange = operation.newsletterIds.length;
if (operation.sourceId) {
sourceChanges[operation.sourceId] = operation.newsletterIds.length;
}
break;
case 'archive':
case 'delete':
// For archive/delete, we need to check if the newsletters were unread
// This is more complex and might require fetching newsletter details
// For now, we'll invalidate the cache for these operations
this.log.debug('Archive/delete operation detected, invalidating unread count', {
action: 'update_unread_count_archive_delete',
});
this.queryClient.invalidateQueries({
queryKey: ['unreadCount'],
refetchType: 'active',
});
return;
case 'unarchive':
// For unarchive, we need to check if the newsletters should be unread
// This is also complex, so we'll invalidate
this.log.debug('Unarchive operation detected, invalidating unread count', {
action: 'update_unread_count_unarchive',
});
this.queryClient.invalidateQueries({
queryKey: ['unreadCount'],
refetchType: 'active',
});
return;
default:
this.log.warn('Unknown operation type for unread count update', {
action: 'update_unread_count_unknown_operation',
metadata: { operation: operation.type },
});
return;
}
// Update the cache optimistically
const updatedData = {
total: Math.max(0, currentData.total + totalChange),
bySource: { ...currentData.bySource },
};
// Update source-specific counts
Object.entries(sourceChanges).forEach(([sourceId, change]) => {
const currentSourceCount = updatedData.bySource[sourceId] || 0;
updatedData.bySource[sourceId] = Math.max(0, currentSourceCount + change);
});
// Set the updated data in cache
this.queryClient.setQueryData(unreadCountQueryKey, updatedData);
this.log.debug('Unread count updated optimistically', {
action: 'update_unread_count_success',
metadata: {
previousTotal: currentData.total,
newTotal: updatedData.total,
totalChange,
sourceChanges,
},
});
} catch (error) {
this.log.error(
'Failed to update unread count optimistically',
{
action: 'update_unread_count_optimistic_error',
metadata: { operation: operation.type, newsletterIds: operation.newsletterIds },
},
error instanceof Error ? error : new Error(String(error))
);
}
}
// Smart invalidation with operation types
invalidateRelatedQueries(newsletterIds: string[], operationType: string): void {
const invalidationPromises: Promise<void>[] = [];
switch (operationType) {
case 'mark-read':
case 'mark-unread':
case 'bulk-mark-read':
case 'bulk-mark-unread':
// Use optimistic updates for unread count instead of invalidation
this.updateUnreadCountOptimistically({
type: operationType as 'mark-read' | 'mark-unread' | 'bulk-mark-read' | 'bulk-mark-unread',
newsletterIds,
});
break;
case 'toggle-archive':
case 'archive':
case 'unarchive':
case 'bulk-archive':
case 'bulk-unarchive':
// For archive operations, we need to remove items from filtered views
// and invalidate unread counts
this.handleArchiveInvalidation(newsletterIds, operationType);
invalidationPromises.push(
this.queryClient.invalidateQueries({
queryKey: ['unreadCount'],
refetchType: 'active',
})
);
break;
case 'delete':
case 'bulk-delete':
// For delete operations, remove from all caches completely
this.handleDeleteInvalidation(newsletterIds);
invalidationPromises.push(
this.queryClient.invalidateQueries({
queryKey: ['unreadCount'],
refetchType: 'active',
})
);
break;
case 'toggle-like':
// For like operations, rely on optimistic updates only
// No cache invalidation needed since optimistic updates handle the UI
// This preserves filter state and prevents unnecessary refetches
break;
case 'toggle-queue':
case 'queue-add':
case 'queue-remove':
case 'queue-reorder':
case 'queue-clear':
case 'queue-mark-read':
case 'queue-mark-unread':
case 'queue-update-tags':
case 'queue-cleanup':
// For all queue operations, invalidate reading queue and newsletter lists
invalidationPromises.push(
this.queryClient.invalidateQueries({
queryKey: queryKeyFactory.queue.all(),
refetchType: 'active',
})
);
// Also refresh the newsletter lists to reflect any queue changes
setTimeout(() => {
this.queryClient.refetchQueries({
queryKey: queryKeyFactory.newsletters.lists(),
type: 'active',
});
}, 100);
break;
case 'toggle-like-error':
// For like error cases, rely on rollback mechanism from optimistic updates
// Avoid broad invalidation to preserve filter state
// The mutation's onError callback handles rollbacks
break;
case 'toggle-queue-error':
// For queue error cases, force refresh of both lists and queue
invalidationPromises.push(
this.queryClient.invalidateQueries({
queryKey: queryKeyFactory.newsletters.lists(),
refetchType: 'active',
}),
this.queryClient.invalidateQueries({
queryKey: queryKeyFactory.queue.all(),
refetchType: 'active',
})
);
break;
case 'tag-update':
invalidationPromises.push(
this.queryClient.invalidateQueries({
queryKey: queryKeyFactory.newsletters.tags(),
refetchType: 'active',
})
);
break;
case 'newsletter-sources':
case 'source-update-optimistic':
case 'source-update-error':
case 'source-archive-optimistic':
case 'source-unarchive-optimistic':
case 'source-archive-error':
invalidationPromises.push(
this.queryClient.invalidateQueries({
predicate: (query) => {
return query.queryKey[0] === 'newsletterSources';
},
refetchType: 'active',
})
);
break;
case 'unread-count-change':
invalidationPromises.push(
this.queryClient.invalidateQueries({
queryKey: ['unreadCount'],
refetchType: 'active',
})
);
break;
case 'navigation':
// For navigation operations, don't invalidate unread count
// Let optimistic updates handle the changes
this.log.debug('Navigation operation detected, skipping unread count invalidation', {
action: 'navigation_skip_unread_invalidation',
metadata: { newsletterIds },
});
break;
default:
// Fallback: invalidate general newsletter queries
invalidationPromises.push(
this.queryClient.invalidateQueries({
queryKey: queryKeyFactory.newsletters.lists(),
refetchType: 'active',
})
);
break;
}
Promise.all(invalidationPromises).catch((error) => {
this.log.error(
'Failed to invalidate related queries',
{
action: 'invalidate_related_queries',
metadata: {
newsletterIds,
invalidationCount: invalidationPromises.length,
},
},
error
);
});
}
// Smart invalidation that respects filter context
smartInvalidate(options: {
operation: string;
newsletterIds?: string[];
filterContext?: unknown;
priority: 'high' | 'medium' | 'low';
}): void {
const { operation, newsletterIds = [], filterContext, priority } = options;
this.log.debug('Smart cache invalidation triggered', {
action: 'smart_invalidation',
metadata: {
operation,
newsletterCount: newsletterIds.length,
filterContext,
priority,
},
});
switch (operation) {
case 'newsletter-action':
// For newsletter actions, preserve the current filter state
// Only invalidate unread counts, let optimistic updates handle the rest
this.queryClient.invalidateQueries({
queryKey: ['unreadCount'],
refetchType: priority === 'high' ? 'active' : 'none',
});
// Gentle refresh of current newsletter list after a delay
if (priority === 'high') {
setTimeout(() => {
this.queryClient.refetchQueries({
queryKey: queryKeyFactory.newsletters.lists(),
type: 'active',
});
}, 500);
}
break;
case 'queue-action':
// For reading queue actions, invalidate queue and unread counts
this.queryClient.invalidateQueries({
queryKey: queryKeyFactory.queue.all(),
refetchType: priority === 'high' ? 'active' : 'none',
});
this.queryClient.invalidateQueries({
queryKey: ['unreadCount'],
refetchType: 'active',
});
break;
default:
// Fallback to standard invalidation
this.invalidateRelatedQueries(newsletterIds, operation);
break;
}
}
// Handle archive operations with filter-aware cache updates
private handleArchiveInvalidation(newsletterIds: string[], operationType: string): void {
const isArchiving =
operationType === 'toggle-archive' ||
operationType === 'archive' ||
operationType === 'bulk-archive';
// Update all newsletter list queries to remove/add archived items based on filter context
this.queryClient.setQueriesData<PaginatedResponse<NewsletterWithRelations>>(
{ queryKey: queryKeyFactory.newsletters.lists() },
(oldData) => {
if (!oldData || !oldData.data || !Array.isArray(oldData.data)) return oldData;
// Get the filter context from the query key to understand if archived items should be shown
const shouldShowArchived = this.shouldShowArchivedInQuery(oldData);
if (isArchiving && !shouldShowArchived) {
// Remove archived newsletters from non-archived views
const filteredData = oldData.data.filter(
(newsletter: NewsletterWithRelations) => !newsletterIds.includes(newsletter.id)
);
return {
...oldData,
data: filteredData,
count: Math.max(0, (oldData.count || 0) - newsletterIds.length),
};
} else if (!isArchiving && shouldShowArchived) {
// For unarchive operations in archived view, let optimistic updates handle it
// The newsletters will still show until the actual refetch happens
return oldData;
}
return oldData;
}
);
}
// Handle delete operations by completely removing items from all caches
private handleDeleteInvalidation(newsletterIds: string[]): void {
// Remove from all newsletter list queries
this.queryClient.setQueriesData<unknown>(
{ queryKey: queryKeyFactory.newsletters.lists() },
(oldData: unknown) => {
if (!oldData || !(oldData as any)?.data || !Array.isArray((oldData as any).data))
return oldData;
const filteredData = (oldData as any).data.filter(
(newsletter: NewsletterWithRelations) => !newsletterIds.includes(newsletter.id)
);
return {
...(oldData as any),
data: filteredData,
count: Math.max(0, ((oldData as any).count || 0) - newsletterIds.length),
};
}
);
// Remove individual newsletter detail caches
newsletterIds.forEach((id) => {
this.queryClient.removeQueries({
queryKey: queryKeyFactory.newsletters.detail(id),
exact: true,
});
});
// Remove from reading queue if present
this.queryClient.setQueriesData<ReadingQueueItem[]>(
{ queryKey: queryKeyFactory.queue.all() },
(oldData) => {
if (!Array.isArray(oldData)) return oldData;
return oldData.filter((item) => !newsletterIds.includes(item.newsletter_id));
}
);
}
// Determine if a query should show archived newsletters based on its filter context
private shouldShowArchivedInQuery(
queryData: PaginatedResponse<NewsletterWithRelations>
): boolean {
// This is a heuristic - in a real implementation, you'd parse the query key
// to understand the filter context. For now, we assume if the data contains
// archived newsletters, it's an "all" or "archived" view
if (!(queryData as any)?.data || !Array.isArray((queryData as any).data)) return false;
const hasArchivedNewsletters = (queryData as any).data.some(
(newsletter: NewsletterWithRelations) => newsletter.is_archived === true
);
return hasArchivedNewsletters;
}
// Optimistic update with rollback support
async optimisticUpdate(
newsletterId: string,
updates: Partial<NewsletterWithRelations>,
operation: string
): Promise<NewsletterWithRelations | null> {
try {
this.log.debug('Starting optimistic update', {
action: 'optimistic_update_start',
metadata: {
newsletterId,
operation,
updates,
updateFields: Object.keys(updates),
},
});
// Get all query keys that might contain this newsletter
const queryCache = this.queryClient.getQueryCache();
const queries = queryCache.findAll({
predicate: (query) => {
const key = query.queryKey;
// Match any query key that's for newsletter lists or infinite lists
if (!Array.isArray(key) || key.length < 2) return false;
// Check for regular list queries
if (key[0] === 'newsletters' && key[1] === 'list' && key[2] !== 'infinite') {
return true;
}
// Check for infinite queries
if (key[0] === 'newsletters' && key[1] === 'list' && key[2] === 'infinite') {
return true;
}
return false;
},
});
// Find the first query that contains our newsletter
let currentData: NewsletterWithRelations | null = null;
for (const query of queries) {
// Check if it's an infinite query
const queryKey = query.queryKey;
if (
Array.isArray(queryKey) &&
queryKey.length >= 3 &&
queryKey[0] === 'newsletters' &&
queryKey[1] === 'list' &&
queryKey[2] === 'infinite'
) {
const data = this.queryClient.getQueryData<{
pages: PaginatedResponse<NewsletterWithRelations>[];
}>(query.queryKey);
if (data?.pages) {
for (const page of data.pages) {
const newsletter = page.data.find((n) => n.id === newsletterId);
if (newsletter) {
currentData = newsletter;
break;
}
}
if (currentData) break;
}
} else {
// Regular list query
const data = this.queryClient.getQueryData<
PaginatedResponse<NewsletterWithRelations> | NewsletterWithRelations[] | undefined
>(query.queryKey);
if (data) {
const newsletters = Array.isArray(data) ? data : data.data;
if (Array.isArray(newsletters)) {
const newsletter = newsletters.find((n) => n.id === newsletterId);
if (newsletter) {
currentData = newsletter;
break;
}
}
}
}
}
// Update newsletter in all relevant caches
this.updateNewsletterInCache({ id: newsletterId, updates });
// Don't invalidate queries immediately for optimistic updates
// The calling code will handle invalidation after the API call
this.log.debug('Optimistic update completed', {
action: 'optimistic_update_complete',
metadata: {
newsletterId,
operation,
foundOriginalData: currentData !== null,
originalValues: currentData
? {
is_read: currentData.is_read,
is_liked: currentData.is_liked,
is_archived: currentData.is_archived,
}
: null,
},
});
return currentData;
} catch (error) {
this.log.error(
'Failed to perform optimistic update',
{
action: 'optimistic_update',
metadata: { operation },
},
error instanceof Error ? error : new Error(String(error))
);
return null;
}
}
// Warm cache by prefetching common queries
warmCache(userId: string, priority: 'high' | 'medium' | 'low' = 'medium'): void {
if (!userId) return;
const prefetchOptions = {
staleTime: priority === 'high' ? 10 * 60 * 1000 : 5 * 60 * 1000, // 10 min for high, 5 min for others
};
// Prefetch newsletters
this.queryClient.prefetchQuery({
queryKey: queryKeyFactory.newsletters.list({ userId }),
queryFn: () => Promise.resolve([]), // Would be actual fetch function
...prefetchOptions,
});
// Prefetch reading queue if high priority
if (priority === 'high') {
this.queryClient.prefetchQuery({
queryKey: queryKeyFactory.queue.list(userId),
queryFn: () => Promise.resolve([]), // Would be actual fetch function
...prefetchOptions,
});
}
// Prefetch unread count
this.queryClient.prefetchQuery({
queryKey: ['unreadCount', userId],
queryFn: () => Promise.resolve(0), // Would be actual fetch function
...prefetchOptions,
});
}
// Clear specific cache sections
clearNewsletterCache(): void {
this.queryClient.invalidateQueries({
queryKey: queryKeyFactory.newsletters.lists(),
refetchType: 'active',
});
}
clearReadingQueueCache(): void {
this.queryClient.invalidateQueries({
queryKey: queryKeyFactory.queue.all(),
refetchType: 'active',
});
}
// Tag-specific cache operations
invalidateTagQueries(): void {
this.queryClient.invalidateQueries({
queryKey: queryKeyFactory.newsletters.tags(),
refetchType: 'active',
});
this.queryClient.invalidateQueries({
queryKey: ['newsletter_tags'],
refetchType: 'active',
});
}
updateNewsletterTagsInCache(newsletterId: string, tags: Tag[]): void {
// Update newsletter with new tags in all caches
this.updateNewsletterInCache({
id: newsletterId,
updates: { tags },
});
// Invalidate tag-related queries
this.invalidateTagQueries();
}
removeTagFromAllNewsletters(tagId: string): void {
// Update all newsletter list queries to remove the deleted tag
this.queryClient.setQueriesData<NewsletterWithRelations[]>(
{ queryKey: queryKeyFactory.newsletters.lists() },
(oldData) => {
if (!oldData) return oldData;
return oldData.map((newsletter) => ({
...newsletter,
tags: newsletter.tags?.filter((tag) => tag.id !== tagId) || [],
}));
}
);
// Update individual newsletter queries
this.queryClient
.getQueryCache()
.findAll()
.forEach((query) => {
if (query.queryKey[0] === 'newsletters' && query.queryKey[1] === 'detail') {
const newsletterData = query.state.data as NewsletterWithRelations;
if (newsletterData?.tags?.some((tag) => tag.id === tagId)) {
this.queryClient.setQueryData<NewsletterWithRelations>(query.queryKey, (oldData) => {
if (!oldData) return oldData;
return {
...oldData,
tags: oldData.tags?.filter((tag) => tag.id !== tagId) || [],
};
});
}
}
});
// Invalidate tag-related queries
this.invalidateTagQueries();
}
// Enhanced cache invalidation for granular control
invalidateNewsletterListQueries(filters?: Record<string, any>): Promise<void> {
const queryKey = filters
? queryKeyFactory.newsletters.list(filters)
: queryKeyFactory.newsletters.lists();
return this.queryClient.invalidateQueries({
queryKey,
refetchType: 'active',
});
}
// Batch invalidation for multiple operations
async batchInvalidateQueries(
operations: Array<{
type: string;
ids: string[];
filters?: Record<string, any>;
}>
): Promise<void> {
const promises = operations.map(({ type, ids, filters }) => {
switch (type) {
case 'newsletter-list':
return this.invalidateNewsletterListQueries(filters);
case 'newsletter-detail':
return Promise.all(
ids.map((id) =>
this.queryClient.invalidateQueries({
queryKey: queryKeyFactory.newsletters.detail(id),
refetchType: 'active',
})
)
);
case 'reading-queue':
return this.queryClient.invalidateQueries({
queryKey: queryKeyFactory.queue.all(),
refetchType: 'active',
});
case 'unread-count':
return this.queryClient.invalidateQueries({
queryKey: ['unreadCount'],
refetchType: 'active',
});
default:
return Promise.resolve();
}
});
await Promise.all(promises);
}
// Optimistic update with enhanced rollback
async optimisticUpdateWithRollback<T>(
queryKey: unknown[],
updater: (data: T) => T,
rollbackData?: T
): Promise<{ rollback: () => void; previousData: T | undefined }> {
const previousData = this.queryClient.getQueryData<T>(queryKey);
// Apply optimistic update
this.queryClient.setQueryData<T>(queryKey, updater as any);
const rollback = () => {
if (rollbackData !== undefined) {
this.queryClient.setQueryData<T>(queryKey, rollbackData);
} else if (previousData !== undefined) {
this.queryClient.setQueryData<T>(queryKey, previousData);
}
};
return { rollback, previousData };
}
}
// Singleton instance
let cacheManagerInstance: SimpleCacheManager | null = null;
export const createCacheManager = (
queryClient: QueryClient,
config?: CacheManagerConfig
): SimpleCacheManager => {
cacheManagerInstance = new SimpleCacheManager(queryClient, config);
return cacheManagerInstance;
};
export const getCacheManager = (): SimpleCacheManager => {
if (!cacheManagerInstance) {
throw new Error('Cache manager not initialized. Call createCacheManager first.');
}
return cacheManagerInstance;
};
export const getCacheManagerSafe = (): SimpleCacheManager | null => {
return cacheManagerInstance;
};
// Reset function for testing purposes
export const resetCacheManager = (): void => {
cacheManagerInstance = null;
};
// Additional cache utility methods
export const prefetchQuery = async <T>(
queryKey: readonly unknown[],
queryFn: () => Promise<T>,
options: { staleTime?: number; gcTime?: number } = {}
): Promise<void> => {
const manager = getCacheManager();
await manager.queryClient.prefetchQuery({
queryKey,
queryFn,
staleTime: options.staleTime || 5 * 60 * 1000,
gcTime: options.gcTime || 30 * 60 * 1000,
});
};
export const getQueryData = <T>(queryKey: readonly unknown[]): T | undefined => {
const manager = getCacheManager();
return manager.queryClient.getQueryData<T>(queryKey);
};
export const getQueriesData = <T>(
queryKey: readonly unknown[]
): [readonly unknown[], T | undefined][] => {
const manager = getCacheManager();
return manager.queryClient.getQueriesData<T>({ queryKey });
};
export const getQueryState = (queryKey: readonly unknown[]) => {
const manager = getCacheManager();
return manager.queryClient.getQueryState(queryKey);
};
export const invalidateQueries = async (options: {
queryKey?: readonly unknown[];
predicate?: (query: { queryKey: unknown[] }) => boolean;
refetchType?: 'active' | 'inactive' | 'all';
}): Promise<void> => {
const manager = getCacheManager();
await manager.queryClient.invalidateQueries(
options as Parameters<typeof manager.queryClient.invalidateQueries>[0]
);
};
export const setQueryData = <T>(
queryKey: readonly unknown[],
data: T | ((oldData: T | undefined) => T)
): void => {
const manager = getCacheManager();
manager.queryClient.setQueryData<T>(queryKey, data);
};
export const cancelQueries = async (options: {
queryKey?: readonly unknown[];
predicate?: (query: { queryKey: unknown[] }) => boolean;
refetchType?: 'active' | 'inactive' | 'all';
}): Promise<void> => {
const manager = getCacheManager();
await manager.queryClient.cancelQueries(
options as Parameters<typeof manager.queryClient.cancelQueries>[0]
);
};
// Utility function to get current unread count from cache
export const getCurrentUnreadCount = (): { total: number; bySource: Record<string, number> } | undefined => {
const manager = getCacheManager();
return manager.queryClient.getQueryData<{ total: number; bySource: Record<string, number> }>(['unreadCount', 'all']);
};
// Utility functions for backward compatibility
export const updateCachedNewsletter = (
newsletterId: string,
updates: Partial<NewsletterWithRelations>
) => {
const manager = getCacheManager();
manager.updateNewsletterInCache({ id: newsletterId, updates });
};
export const updateMultipleCachedNewsletters = async (
updates: { id: string; updates: Partial<NewsletterWithRelations> }[]
) => {
const manager = getCacheManager();
await manager.batchUpdateNewsletters(updates);
};
export const invalidateNewsletterQueries = (newsletterIds: string[], operationType: string) => {
const manager = getCacheManager();
manager.invalidateRelatedQueries(newsletterIds, operationType);
};
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