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import { readingQueueService } from '@common/services';
import { optimizedNewsletterService } from '@common/services/optimizedNewsletterService';
import type { ReadingQueueItem } from '@common/types';
import { useLogger } from '@common/utils/logger/useLogger';
import { updateNewsletterTags } from '@common/utils/tagUtils';
import { useMutation, useQuery } from '@tanstack/react-query';
import { useCallback, useContext, useMemo, useRef } from 'react';
import { getCacheManagerSafe } from '../utils/cacheUtils';
import { queryKeyFactory } from '../utils/queryKeyFactory';
export const useReadingQueue = () => {
const auth = useContext(AuthContext);
const user = auth?.user;
const log = useLogger();
// Initialize cache manager safely
const cacheManager = useMemo(() => {
return getCacheManagerSafe();
}, []);
// Safe cache manager helper
const safeCacheCall = useCallback(
(fn: (manager: NonNullable<ReturnType<typeof getCacheManagerSafe>>) => void) => {
if (cacheManager) {
fn(cacheManager);
}
},
[cacheManager]
);
// Performance monitoring
const performanceTimers = useRef<Map<string, number>>(new Map());
const startTimer = useCallback((operation: string) => {
performanceTimers.current.set(operation, performance.now());
}, []);
const endTimer = useCallback(
(operation: string) => {
const start = performanceTimers.current.get(operation);
if (start && process.env.NODE_ENV === 'development') {
const duration = performance.now() - start;
log.debug('Reading queue operation completed', {
action: 'performance_timer',
metadata: {
operation,
duration: duration.toFixed(2),
unit: 'ms',
},
});
performanceTimers.current.delete(operation);
}
},
[log]
);
// Helper function to fetch reading queue
const fetchReadingQueue = useCallback(async (): Promise<ReadingQueueItem[]> => {
try {
return await readingQueueService.getAll();
} catch (error) {
log.error(
'Failed to fetch reading queue',
{
action: 'fetch_reading_queue',
metadata: { userId: user?.id },
},
error instanceof Error ? error : new Error(String(error))
);
// Handle specific error types
if (error instanceof Error) {
// If it's a null newsletter error, it means data integrity issues
if (error.message.includes('not found in reading queue item')) {
log.warn('Data integrity issue in reading queue', {
action: 'data_integrity_check',
metadata: {
userId: user?.id,
issue: 'missing_newsletter_in_queue_item',
resolution: 'returning_empty_queue',
},
});
// Could potentially trigger a cleanup here if needed
return [];
}
// If it's a network/auth error, re-throw to let React Query handle retries
if (
error.message.includes('JWT') ||
error.message.includes('auth') ||
error.message.includes('network')
) {
throw error;
}
}
// For other errors, return empty array to prevent UI breaks
return [];
}
}, [log, user?.id]);
// Query for reading queue
const {
data: readingQueue = [],
isLoading,
isError,
error,
refetch,
} = useQuery<ReadingQueueItem[], Error>({
queryKey: queryKeyFactory.queue.list(user?.id || ''),
queryFn: () => fetchReadingQueue(),
enabled: !!user?.id,
staleTime: 1 * 60 * 1000, // 1 minute
gcTime: 5 * 60 * 1000, // 5 minutes
refetchOnWindowFocus: false,
retry: (failureCount, error) => {
// Don't retry on data integrity errors
if (error instanceof Error && error.message.includes('not found in reading queue item')) {
return false;
}
// Retry up to 3 times for other errors
return failureCount < 3;
},
retryDelay: (attemptIndex) => Math.min(1000 * 2 ** attemptIndex, 30000),
});
// Add to reading queue
const addToQueue = useMutation({
mutationFn: async (newsletterId: string) => {
if (!user?.id) throw new Error('User not authenticated');
startTimer('addToQueue');
try {
return await readingQueueService.add(newsletterId);
} finally {
endTimer('addToQueue');
}
},
onMutate: async (newsletterId) => {
if (!user?.id) return;
// Snapshot the previous queue
const previousQueue = readingQueue;
// Use cache manager for optimistic update
safeCacheCall((manager) =>
manager.updateReadingQueueInCache({
type: 'add',
newsletterId,
userId: user.id,
})
);
return { previousQueue };
},
onError: (error, _newsletterId, context) => {
log.error(
'Failed to add newsletter to reading queue',
{
action: 'add_to_queue',
metadata: {
newsletterId: _newsletterId,
userId: user?.id,
hasContext: !!context?.previousQueue,
},
},
error
);
// Revert optimistic update using cache manager
if (context?.previousQueue && user?.id) {
safeCacheCall((manager) =>
manager.updateReadingQueueInCache({
type: 'revert',
queueItems: context.previousQueue,
userId: user.id,
})
);
}
},
onSuccess: (_data) => {
if (!user) return;
// Reading queue status is now managed separately from newsletter properties
},
onSettled: () => {
if (!user) return;
// Use cache manager for smart invalidation
safeCacheCall((manager) => manager.invalidateRelatedQueries([], 'queue-add'));
},
});
// Remove from reading queue
const removeFromQueue = useMutation({
mutationFn: async (queueItemId: string) => {
if (!user?.id) throw new Error('User not authenticated');
startTimer('removeFromQueue');
try {
return await readingQueueService.remove(queueItemId);
} finally {
endTimer('removeFromQueue');
}
},
onMutate: async (queueItemId) => {
if (!user) return;
// Find the item being removed
const itemToRemove = readingQueue.find((item) => item.id === queueItemId);
const previousQueue = readingQueue;
// Use cache manager for optimistic removal
safeCacheCall((manager) =>
manager.updateReadingQueueInCache({
type: 'remove',
queueItemId,
userId: user.id,
})
);
return { previousQueue, removedItem: itemToRemove };
},
onError: (error, _queueItemId, context) => {
log.error(
'Failed to remove newsletter from reading queue',
{
action: 'remove_from_queue',
metadata: {
queueItemId: _queueItemId,
userId: user?.id,
hasContext: !!context?.previousQueue,
},
},
error
);
// Revert optimistic update using cache manager
if (context?.previousQueue && user?.id) {
safeCacheCall((manager) =>
manager.updateReadingQueueInCache({
type: 'revert',
queueItems: context.previousQueue,
userId: user.id,
})
);
}
},
onSuccess: (_data, _queueItemId, context) => {
if (!user || !context?.removedItem) return;
// Reading queue status is now managed separately from newsletter properties
},
onSettled: () => {
if (!user) return;
// Use cache manager for smart invalidation
safeCacheCall((manager) => manager.invalidateRelatedQueries([], 'queue-remove'));
},
});
// Reorder reading queue
const reorderQueue = useMutation({
mutationFn: async (updates: { id: string; position: number }[]) => {
if (!user) throw new Error('User not authenticated');
startTimer('reorderQueue');
try {
return await readingQueueService.reorder(updates);
} finally {
endTimer('reorderQueue');
}
},
onMutate: async (updates) => {
if (!user?.id) return;
// Snapshot the previous queue
const previousQueue = readingQueue;
// Use cache manager for optimistic reordering
safeCacheCall((manager) =>
manager.updateReadingQueueInCache({
type: 'reorder',
updates,
userId: user.id,
})
);
return { previousQueue };
},
onError: (error, _updates, context) => {
log.error(
'Failed to reorder reading queue',
{
action: 'reorder_queue',
metadata: {
userId: user?.id,
updatesCount: _updates?.length || 0,
hasContext: !!context?.previousQueue,
},
},
error
);
// Revert optimistic update using cache manager
if (context?.previousQueue && user?.id) {
safeCacheCall((manager) =>
manager.updateReadingQueueInCache({
type: 'revert',
queueItems: context.previousQueue,
userId: user.id,
})
);
}
},
onSettled: () => {
if (!user?.id) return;
// Use cache manager for smart invalidation
safeCacheCall((manager) => manager.invalidateRelatedQueries([], 'queue-reorder'));
},
});
// Clear entire reading queue
const clearQueue = useMutation({
mutationFn: async () => {
if (!user?.id) throw new Error('User not authenticated');
return readingQueueService.clear();
},
onSuccess: () => {
safeCacheCall((manager) => manager.invalidateRelatedQueries([], 'queue-clear'));
},
});
// Mark newsletter as read
const markAsRead = useMutation({
mutationFn: async (newsletterId: string) => {
return optimizedNewsletterService.markAsRead(newsletterId);
},
onSuccess: () => {
safeCacheCall((manager) => manager.invalidateRelatedQueries([], 'queue-mark-read'));
},
});
// Mark newsletter as unread
const markAsUnread = useMutation({
mutationFn: async (newsletterId: string) => {
return optimizedNewsletterService.markAsUnread(newsletterId);
},
onSuccess: () => {
safeCacheCall((manager) => manager.invalidateRelatedQueries([], 'queue-mark-unread'));
},
});
// Update tags
const updateTags = useMutation({
mutationFn: async ({ newsletterId, tagIds }: { newsletterId: string; tagIds: string[] }) => {
if (!user?.id) throw new Error('User not authenticated');
const currentTagIds =
readingQueue
.find((item) => item.newsletter.id === newsletterId)
?.newsletter.tags?.map((tag) => tag.id) || [];
return updateNewsletterTags(newsletterId, tagIds, currentTagIds, user.id);
},
onMutate: async ({ newsletterId, tagIds }) => {
// Snapshot the previous value
const previousQueue = readingQueue;
// Use cache manager for optimistic tag update
safeCacheCall((manager) =>
manager.updateReadingQueueInCache({
type: 'updateTags',
newsletterId,
tagIds,
userId: user?.id || '',
})
);
return { previousQueue };
},
onError: (_err, _variables, context) => {
// Rollback on error
if (context?.previousQueue) {
// Revert using cache manager
safeCacheCall((manager) =>
manager.updateReadingQueueInCache({
type: 'revert',
queueItems: context.previousQueue,
userId: user?.id || '',
})
);
}
},
onSettled: () => {
// Use cache manager for smart invalidation
safeCacheCall((manager) => manager.invalidateRelatedQueries([], 'queue-update-tags'));
},
});
// Cleanup orphaned items
const cleanupOrphanedItems = useMutation({
mutationFn: async () => {
if (!user?.id) throw new Error('User not authenticated');
return readingQueueService.cleanupOrphanedItems();
},
onSuccess: (result) => {
if (result.removedCount > 0) {
log.info('Cleaned up orphaned reading queue items', {
action: 'cleanup_orphaned_items',
metadata: {
removedCount: result.removedCount,
userId: user?.id,
},
});
// Refetch the queue to get the updated state
refetch();
}
},
onError: (error) => {
log.error(
'Failed to cleanup orphaned reading queue items',
{
action: 'cleanup_orphaned_items',
metadata: { userId: user?.id },
},
error
);
},
onSettled: () => {
safeCacheCall((manager) => manager.invalidateRelatedQueries([], 'queue-cleanup'));
},
});
// Check if newsletter is in queue
const isInQueue = useCallback(
async (newsletterId: string): Promise<boolean> => {
if (!user) return false;
try {
return await readingQueueService.isInQueue(newsletterId);
} catch (error) {
log.error(
'Failed to check if newsletter is in queue',
{
action: 'check_is_in_queue',
metadata: { newsletterId, userId: user.id },
},
error instanceof Error ? error : new Error(String(error))
);
return false;
}
},
[user, log]
);
return {
// Data
readingQueue,
isLoading,
isError,
error,
isEmpty: readingQueue.length === 0,
// Actions
addToQueue: addToQueue.mutateAsync,
removeFromQueue: removeFromQueue.mutateAsync,
reorderQueue: reorderQueue.mutateAsync,
clearQueue: clearQueue.mutateAsync,
markAsRead: markAsRead.mutateAsync,
markAsUnread: markAsUnread.mutateAsync,
updateTags: updateTags.mutateAsync,
cleanupOrphanedItems: cleanupOrphanedItems.mutateAsync,
isInQueue,
// Loading states
isAdding: addToQueue.isPending,
isRemoving: removeFromQueue.isPending,
isReordering: reorderQueue.isPending,
isClearing: clearQueue.isPending,
isMarkingAsRead: markAsRead.isPending,
isMarkingAsUnread: markAsUnread.isPending,
isUpdatingTags: updateTags.isPending,
isCleaningUp: cleanupOrphanedItems.isPending,
// Utils
refetch,
};
};
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