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import type { NewsletterWithRelations } from '@common/types';
import { toast } from 'react-hot-toast';
import { getCacheManager } from './cacheUtils';
import { logger } from './logger';
export interface NewsletterActionHandlers {
markAsRead: (id: string) => Promise<void>;
markAsUnread: (id: string) => Promise<void>;
toggleLike: (id: string) => Promise<void>;
toggleArchive: (id: string) => Promise<void>;
deleteNewsletter: (id: string) => Promise<void>;
toggleInQueue: (id: string) => Promise<void>;
updateTags: (id: string, tagIds: string[]) => Promise<void>;
bulkMarkAsRead: (ids: string[]) => Promise<void>;
bulkMarkAsUnread: (ids: string[]) => Promise<void>;
bulkArchive: (ids: string[]) => Promise<void>;
bulkUnarchive: (ids: string[]) => Promise<void>;
bulkDelete: (ids: string[]) => Promise<void>;
}
export interface NewsletterActionOptions {
showToasts?: boolean;
optimisticUpdates?: boolean;
onSuccess?: (newsletter?: NewsletterWithRelations) => void;
onError?: (error: Error) => void;
}
export class SharedNewsletterActionHandlers {
private cacheManager: ReturnType<typeof getCacheManager>;
private handlers: NewsletterActionHandlers;
private log = logger;
private defaultOptions: NewsletterActionOptions = {
showToasts: true,
optimisticUpdates: true,
};
constructor(handlers: NewsletterActionHandlers, options?: Partial<NewsletterActionOptions>) {
this.handlers = handlers;
this.cacheManager = getCacheManager();
this.defaultOptions = { ...this.defaultOptions, ...options };
}
private async withOptimisticUpdate<T>(
newsletterId: string,
updates: Partial<NewsletterWithRelations>,
operation: () => Promise<T>,
operationType: string,
options: NewsletterActionOptions = {}
): Promise<T> {
const opts = { ...this.defaultOptions, ...options };
let originalData: NewsletterWithRelations | null = null;
let optimisticUpdateApplied = false;
try {
// Apply optimistic update if enabled
if (opts.optimisticUpdates) {
try {
originalData = await this.cacheManager.optimisticUpdate(
newsletterId,
updates,
operationType
);
optimisticUpdateApplied = true;
} catch (_) {
this.log.warn('Failed to apply optimistic update', {
action: 'optimistic_update',
metadata: {
newsletterId,
operationType,
updateFields: Object.keys(updates),
},
});
// Continue without optimistic update
}
}
// Perform the actual operation
const result = await operation();
// Use gentle invalidation to prevent UI flashing
setTimeout(async () => {
await this.cacheManager.invalidateRelatedQueries([newsletterId], operationType);
}, 100);
// Dispatch custom events for real-time updates
if (operationType === 'mark-read' || operationType === 'mark-unread') {
window.dispatchEvent(new CustomEvent('newsletter:read-status-changed'));
} else if (operationType === 'archive' || operationType === 'unarchive') {
window.dispatchEvent(new CustomEvent('newsletter:archived'));
}
opts.onSuccess?.();
return result;
} catch (error) {
// Revert optimistic update on error
if (optimisticUpdateApplied && originalData) {
try {
this.cacheManager.updateNewsletterInCache({
id: newsletterId,
updates: originalData,
});
} catch (_) {
this.log.warn('Failed to revert optimistic update', {
action: 'revert_optimistic_update',
metadata: {
newsletterId,
operationType,
},
});
// Force refresh if revert fails
await this.cacheManager.invalidateRelatedQueries([newsletterId], 'error-recovery');
}
}
const errorMessage = error instanceof Error ? error.message : 'An error occurred';
if (opts.showToasts) {
toast.error(`Failed to ${operationType.replace('-', ' ')}: ${errorMessage}`);
}
opts.onError?.(error instanceof Error ? error : new Error(errorMessage));
throw error;
}
}
private async withBulkOptimisticUpdate<T>(
newsletterIds: string[],
updates: Partial<NewsletterWithRelations>,
operation: () => Promise<T>,
operationType: string,
options: NewsletterActionOptions = {}
): Promise<T> {
const opts = { ...this.defaultOptions, ...options };
let optimisticUpdateApplied = false;
try {
// Apply bulk optimistic updates if enabled
if (opts.optimisticUpdates) {
try {
this.cacheManager.batchUpdateNewsletters(newsletterIds.map((id) => ({ id, updates })));
optimisticUpdateApplied = true;
} catch (_) {
this.log.warn('Failed to apply bulk optimistic update', {
action: 'bulk_optimistic_update',
metadata: {
newsletterIds: newsletterIds.length,
operationType,
updateFields: Object.keys(updates),
},
});
// Continue without optimistic update
}
}
// Perform the actual operation
const result = await operation();
// Use gentle invalidation to prevent UI flashing for bulk operations
setTimeout(async () => {
await this.cacheManager.invalidateRelatedQueries(newsletterIds, operationType);
}, 150);
opts.onSuccess?.();
return result;
} catch (error) {
// For bulk operations, we invalidate the entire cache on error
// as reverting individual optimistic updates is complex
if (optimisticUpdateApplied) {
await this.cacheManager.invalidateRelatedQueries(newsletterIds, 'error-recovery');
}
const errorMessage = error instanceof Error ? error.message : 'An error occurred';
if (opts.showToasts) {
toast.error(`Failed to ${operationType.replace('-', ' ')}: ${errorMessage}`);
}
opts.onError?.(error instanceof Error ? error : new Error(errorMessage));
throw error;
}
}
async markAsRead(newsletterId: string, options?: NewsletterActionOptions): Promise<void> {
return this.withOptimisticUpdate(
newsletterId,
{ is_read: true },
() => this.handlers.markAsRead(newsletterId),
'mark-read',
{
...options,
onSuccess: () => {
if (options?.showToasts !== false) {
toast.success('Marked as read');
}
options?.onSuccess?.();
},
}
);
}
async markAsUnread(newsletterId: string, options?: NewsletterActionOptions): Promise<void> {
return this.withOptimisticUpdate(
newsletterId,
{ is_read: false },
() => this.handlers.markAsUnread(newsletterId),
'mark-unread',
{
...options,
onSuccess: () => {
if (options?.showToasts !== false) {
toast.success('Marked as unread');
}
options?.onSuccess?.();
},
}
);
}
async toggleLike(
newsletter: NewsletterWithRelations,
options?: NewsletterActionOptions
): Promise<void> {
const newLikedState = !newsletter.is_liked;
return this.withOptimisticUpdate(
newsletter.id,
{
is_liked: newLikedState,
updated_at: new Date().toISOString(),
},
() => this.handlers.toggleLike(newsletter.id),
'toggle-like',
{
...options,
optimisticUpdates: true, // Always use optimistic updates for like
onSuccess: () => {
if (options?.showToasts !== false) {
toast.success(newLikedState ? 'Added to liked' : 'Removed from liked');
}
options?.onSuccess?.({
...newsletter,
is_liked: newLikedState,
updated_at: new Date().toISOString(),
});
},
}
);
}
async toggleArchive(
newsletter: NewsletterWithRelations,
options?: NewsletterActionOptions
): Promise<void> {
const newArchivedState = !newsletter.is_archived;
const operation = newArchivedState ? 'archive' : 'unarchive';
const startTime = Date.now();
this.log.info('Starting archive operation', {
action: 'archive_operation_start',
metadata: {
newsletterId: newsletter.id,
newsletterTitle: newsletter.title,
operation,
currentArchiveState: newsletter.is_archived,
newArchiveState: newArchivedState,
},
});
return this.withOptimisticUpdate(
newsletter.id,
{ is_archived: newArchivedState },
async () => {
try {
const result = await this.handlers.toggleArchive(newsletter.id);
this.log.info('Archive operation successful', {
action: 'archive_operation_success',
metadata: {
newsletterId: newsletter.id,
operation,
duration: Date.now() - startTime,
},
});
return result;
} catch (error) {
this.log.error('Archive operation failed', {
action: 'archive_operation_error',
metadata: {
newsletterId: newsletter.id,
operation,
error: error instanceof Error ? error.message : 'Unknown error',
duration: Date.now() - startTime,
},
});
throw error;
}
},
operation,
{
...options,
onSuccess: () => {
if (options?.showToasts !== false) {
toast.success(newArchivedState ? 'Newsletter archived' : 'Newsletter unarchived');
}
options?.onSuccess?.(newsletter);
},
}
);
}
async deleteNewsletter(newsletterId: string, options?: NewsletterActionOptions): Promise<void> {
if (!window.confirm('Are you sure? This action is final and cannot be undone.')) {
return;
}
try {
await this.handlers.deleteNewsletter(newsletterId);
// Remove from cache immediately
await this.cacheManager.invalidateRelatedQueries([newsletterId], 'delete');
if (options?.showToasts !== false) {
toast.success('Newsletter deleted permanently');
}
options?.onSuccess?.();
} catch (error) {
const errorMessage = error instanceof Error ? error.message : 'An error occurred';
if (options?.showToasts !== false) {
toast.error(`Failed to delete newsletter: ${errorMessage}`);
}
options?.onError?.(error instanceof Error ? error : new Error(errorMessage));
throw error;
}
}
async toggleInQueue(
newsletter: NewsletterWithRelations,
isInQueue: boolean,
options?: NewsletterActionOptions
): Promise<void> {
const startTime = Date.now();
const operation = isInQueue ? 'remove-from-queue' : 'add-to-queue';
this.log.info('Starting queue operation', {
action: 'queue_operation_start',
metadata: {
newsletterId: newsletter.id,
operation,
isInQueue,
newsletterTitle: newsletter.title,
},
});
try {
// Use the isInQueue parameter to determine the correct action
if (isInQueue) {
// Remove from queue - find the queue item first
const queueItems = await readingQueueApi.getAll();
const queueItem = queueItems.find((item) => item.newsletter_id === newsletter.id);
if (queueItem) {
await readingQueueApi.remove(queueItem.id);
this.log.info('Successfully removed from queue', {
action: 'queue_remove_success',
metadata: {
newsletterId: newsletter.id,
queueItemId: queueItem.id,
duration: Date.now() - startTime,
},
});
} else {
throw new Error('Newsletter not found in reading queue');
}
} else {
// Add to queue
const queueItem = await readingQueueApi.add(newsletter.id);
this.log.info('Successfully added to queue', {
action: 'queue_add_success',
metadata: {
newsletterId: newsletter.id,
queueItemId: queueItem.id,
duration: Date.now() - startTime,
},
});
}
// Invalidate reading queue cache after successful operation
setTimeout(async () => {
await this.cacheManager.invalidateRelatedQueries([newsletter.id], 'toggle-queue');
}, 100);
if (options?.showToasts !== false) {
toast.success(isInQueue ? 'Removed from reading queue' : 'Added to reading queue');
}
options?.onSuccess?.(newsletter);
} catch (error) {
const errorMessage = error instanceof Error ? error.message : 'An error occurred';
this.log.error('Queue operation failed', {
action: 'queue_operation_error',
metadata: {
newsletterId: newsletter.id,
operation,
error: errorMessage,
duration: Date.now() - startTime,
},
});
// Force cache refresh on error to ensure consistency
await this.cacheManager.invalidateRelatedQueries([newsletter.id], 'toggle-queue-error');
if (options?.showToasts !== false) {
toast.error(`Failed to update reading queue: ${errorMessage}`);
}
options?.onError?.(error instanceof Error ? error : new Error(errorMessage));
throw error;
}
}
async updateTags(
newsletterId: string,
tagIds: string[],
options?: NewsletterActionOptions
): Promise<void> {
try {
await this.handlers.updateTags(newsletterId, tagIds);
// Invalidate tag-related queries
await this.cacheManager.invalidateRelatedQueries([newsletterId], 'tag-update');
if (options?.showToasts !== false) {
toast.success('Tags updated successfully');
}
options?.onSuccess?.();
} catch (error) {
const errorMessage = error instanceof Error ? error.message : 'An error occurred';
if (options?.showToasts !== false) {
toast.error(`Failed to update tags: ${errorMessage}`);
}
options?.onError?.(error instanceof Error ? error : new Error(errorMessage));
throw error;
}
}
// Bulk operations
async bulkMarkAsRead(newsletterIds: string[], options?: NewsletterActionOptions): Promise<void> {
return this.withBulkOptimisticUpdate(
newsletterIds,
{ is_read: true },
() => this.handlers.bulkMarkAsRead(newsletterIds),
'bulk-mark-read',
{
...options,
onSuccess: () => {
if (options?.showToasts !== false) {
toast.success(`Marked ${newsletterIds.length} newsletters as read`);
}
options?.onSuccess?.();
},
}
);
}
async bulkMarkAsUnread(
newsletterIds: string[],
options?: NewsletterActionOptions
): Promise<void> {
return this.withBulkOptimisticUpdate(
newsletterIds,
{ is_read: false },
() => this.handlers.bulkMarkAsUnread(newsletterIds),
'bulk-mark-unread',
{
...options,
onSuccess: () => {
if (options?.showToasts !== false) {
toast.success(`Marked ${newsletterIds.length} newsletters as unread`);
}
options?.onSuccess?.();
},
}
);
}
async bulkArchive(newsletterIds: string[], options?: NewsletterActionOptions): Promise<void> {
return this.withBulkOptimisticUpdate(
newsletterIds,
{ is_archived: true },
() => this.handlers.bulkArchive(newsletterIds),
'bulk-archive',
{
...options,
onSuccess: () => {
if (options?.showToasts !== false) {
toast.success(`Archived ${newsletterIds.length} newsletters`);
}
options?.onSuccess?.();
},
}
);
}
async bulkUnarchive(newsletterIds: string[], options?: NewsletterActionOptions): Promise<void> {
return this.withBulkOptimisticUpdate(
newsletterIds,
{ is_archived: false },
() => this.handlers.bulkUnarchive(newsletterIds),
'bulk-unarchive',
{
...options,
onSuccess: () => {
if (options?.showToasts !== false) {
toast.success(`Unarchived ${newsletterIds.length} newsletters`);
}
options?.onSuccess?.();
},
}
);
}
async bulkDelete(newsletterIds: string[], options?: NewsletterActionOptions): Promise<void> {
if (
!window.confirm(
`Are you sure you want to permanently delete ${newsletterIds.length} newsletters? This action cannot be undone.`
)
) {
return;
}
try {
await this.handlers.bulkDelete(newsletterIds);
// Invalidate related queries
await this.cacheManager.invalidateRelatedQueries(newsletterIds, 'bulk-delete');
if (options?.showToasts !== false) {
toast.success(`Deleted ${newsletterIds.length} newsletters permanently`);
}
options?.onSuccess?.();
} catch (error) {
const errorMessage = error instanceof Error ? error.message : 'An error occurred';
if (options?.showToasts !== false) {
toast.error(`Failed to delete newsletters: ${errorMessage}`);
}
options?.onError?.(error instanceof Error ? error : new Error(errorMessage));
throw error;
}
}
// Utility method to create handlers with specific options
withOptions(options: Partial<NewsletterActionOptions>): SharedNewsletterActionHandlers {
return new SharedNewsletterActionHandlers(this.handlers, {
...this.defaultOptions,
...options,
});
}
}
// Factory function to create shared handlers
export function createSharedNewsletterHandlers(
handlers: NewsletterActionHandlers,
options?: Partial<NewsletterActionOptions>
): SharedNewsletterActionHandlers {
return new SharedNewsletterActionHandlers(handlers, options);
}
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