All files / src/common/hooks useSimpleNewsletterNavigation.ts

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import type { NewsletterWithRelations } from '@common/types';
import type { NewsletterFilter } from '@common/types/cache';
import { useLogger } from '@common/utils/logger/useLogger';
import { useCallback, useEffect, useMemo } from 'react';
import { useLocation, useNavigate } from 'react-router-dom';
import { useNewsletterSourceGroups } from './useNewsletterSourceGroups';
import { useNewsletters } from './useNewsletters';
import { useReadingQueue } from './useReadingQueue';
 
interface NavigationOptions {
  isReadingQueue?: boolean;
  filter?: NewsletterFilter;
  sourceId?: string;
  originalFilter?: NewsletterFilter; // Frozen filter for navigation context
}
 
interface UseSimpleNewsletterNavigationResult {
  hasPrevious: boolean;
  hasNext: boolean;
  navigateToPrevious: () => void;
  navigateToNext: () => void;
  isLoading: boolean;
}
 
export function useSimpleNewsletterNavigation(
  currentNewsletterId: string,
  options: NavigationOptions = {}
): UseSimpleNewsletterNavigationResult {
  const navigate = useNavigate();
  const location = useLocation();
  const log = useLogger('useSimpleNewsletterNavigation');
  const { isReadingQueue, filter, sourceId, originalFilter } = options;
 
  console.log('🚀 useSimpleNewsletterNavigation called:', {
    currentNewsletterId,
    options,
    isReadingQueue,
    filter: JSON.stringify(filter),
    sourceId
  });
 
  log.debug('Navigation options:', { isReadingQueue, filter: JSON.stringify(filter), sourceId });
 
  // Get newsletters based on context
  const readingQueueQuery = useReadingQueue();
  const { groups } = useNewsletterSourceGroups();
 
  // For navigation, we need newsletters that match the current filter context
  // This ensures navigation works correctly whether user is viewing archived, unarchived, or filtered newsletters
  // Navigation should work for ANY filter context - no default exclusions
  // Use originalFilter if provided to maintain frozen navigation context, otherwise use current filter
  const navigationFilter = originalFilter || filter;
 
  // Group filters are URL-facing, but newsletter queries are source-based.
  // Resolve selected groups into sourceIds so next/previous navigation honors group constraints.
  const resolvedNavigationFilter = useMemo(() => {
    if (!navigationFilter) return {};
    if (!navigationFilter.groupIds?.length) return navigationFilter;
 
    const sourceIds = new Set<string>();
    navigationFilter.groupIds.forEach((groupId) => {
      const group = groups.find((g) => g.id === groupId);
      group?.sources?.forEach((source) => sourceIds.add(source.id));
    });
 
    return {
      ...navigationFilter,
      sourceIds: Array.from(sourceIds),
    };
  }, [navigationFilter, groups]);
 
  const allNewslettersQuery = useNewsletters(resolvedNavigationFilter, {
    enabled: !isReadingQueue,
  });
 
  // Get newsletters from data source - use ALL newsletters for navigation
  const newsletters = useMemo(() => {
    if (isReadingQueue) {
      log.debug('Using reading queue for newsletters:', readingQueueQuery.readingQueue);
      return readingQueueQuery.readingQueue?.map((item) => item.newsletter) || [];
    } else {
      log.debug('Using all newsletters query:', allNewslettersQuery.newsletters);
      const newsletters = allNewslettersQuery.newsletters || [];
      log.debug('All newsletters returned:', newsletters.map(n => ({ id: n.id, title: n.title, is_read: n.is_read, is_archived: n.is_archived })));
      return newsletters;
    }
  }, [isReadingQueue, readingQueueQuery.readingQueue, allNewslettersQuery.newsletters, log]);
 
  log.debug('Processed newsletters for navigation:', newsletters);
 
  const isLoading = isReadingQueue ? readingQueueQuery.isLoading : allNewslettersQuery.isLoadingNewsletters;
 
  // Find current newsletter index and debug navigation state
  const currentIndex = useMemo(() => {
    if (!currentNewsletterId || !newsletters.length) {
      log.debug('Navigation debug: No current newsletter ID or empty newsletters array', {
        currentNewsletterId,
        newslettersCount: newsletters.length,
        isReadingQueue,
        isLoading,
      });
      return -1;
    }
 
    // Don't calculate index if still loading
    if (isLoading) {
      log.debug('Navigation debug: Still loading, skipping index calculation', {
        currentNewsletterId,
        newslettersCount: newsletters.length,
        isReadingQueue,
        isLoading,
      });
      return -1;
    }
 
    const index = newsletters.findIndex((n: NewsletterWithRelations) => n.id === currentNewsletterId);
    log.debug('Navigation debug: Current index calculation', {
      currentNewsletterId,
      newslettersCount: newsletters.length,
      foundIndex: index,
      newsletterIds: newsletters.map(n => n.id),
      isReadingQueue,
      isLoading,
    });
    return index;
  }, [currentNewsletterId, newsletters, isReadingQueue, isLoading, log]);
 
  // Determine if there are previous/next newsletters and debug
  const hasPrevious = currentIndex > 0 || (currentIndex === -1 && newsletters.length > 0);
  const hasNext = (currentIndex >= 0 && currentIndex < newsletters.length - 1) || (currentIndex === -1 && newsletters.length > 0);
 
  console.log('🔍 Navigation state debug:', {
    currentNewsletterId,
    currentIndex,
    newslettersCount: newsletters.length,
    hasPrevious,
    hasNext,
    isReadingQueue,
    isLoading,
    newsletterIds: newsletters.map(n => n.id),
  });
 
  // Debug navigation state
  useEffect(() => {
    log.debug('Navigation state update', {
      currentNewsletterId,
      currentIndex,
      newslettersCount: newsletters.length,
      hasPrevious,
      hasNext,
      isReadingQueue,
      isLoading,
      newsletterIds: newsletters.map(n => n.id),
    });
  }, [currentNewsletterId, currentIndex, newsletters, hasPrevious, hasNext, isReadingQueue, isLoading, log]);
 
  // Navigate to previous newsletter
  const navigateToPrevious = useCallback(() => {
    console.log('🚀 navigateToPrevious called', { hasPrevious, currentIndex, newslettersCount: newsletters.length });
    if (!hasPrevious) {
      console.log('❌ navigateToPrevious blocked', { hasPrevious, currentIndex });
      return;
    }
 
    const previousNewsletter = currentIndex === -1
      ? newsletters[newsletters.length - 1] // Go to last newsletter if current is not in list
      : newsletters[currentIndex - 1];
 
    if (!previousNewsletter) {
      console.log('❌ No previous newsletter found');
      return;
    }
 
    log.debug('Navigating to previous newsletter', {
      from: currentNewsletterId,
      to: previousNewsletter.id,
      isReadingQueue,
    });
 
    // Preserve current URL search params (e.g., ?filter=liked)
    const targetPath = `/newsletters/${previousNewsletter.id}${location.search}`;
 
    // Preserve navigation state, but keep original 'from' if it was /inbox or /queue
    const originalFrom =
      location.state?.from === '/inbox' || location.state?.from === '/queue'
        ? location.state.from
        : location.pathname;
    navigate(targetPath, {
      replace: false,
      state: {
        ...location.state,
        from: originalFrom,
        fromNavigation: true,
        fromReadingQueue: isReadingQueue,
        sourceId: sourceId,
        currentFilter: filter,
      },
    });
  }, [
    hasPrevious,
    currentIndex,
    newsletters,
    currentNewsletterId,
    isReadingQueue,
    sourceId,
    filter,
    navigate,
    location,
    log,
  ]);
 
  // Navigate to next newsletter
  const navigateToNext = useCallback(() => {
    console.log('🚀 navigateToNext called', { hasNext, currentIndex, newslettersCount: newsletters.length });
    if (!hasNext) {
      console.log('❌ navigateToNext blocked', { hasNext, currentIndex });
      return;
    }
 
    const nextNewsletter = currentIndex === -1
      ? newsletters[0] // Go to first newsletter if current is not in list
      : newsletters[currentIndex + 1];
 
    if (!nextNewsletter) {
      console.log('❌ No next newsletter found');
      return;
    }
 
    log.debug('Navigating to next newsletter', {
      from: currentNewsletterId,
      to: nextNewsletter.id,
      isReadingQueue,
    });
 
    // Preserve current URL search params (e.g., ?filter=liked)
    const targetPath = `/newsletters/${nextNewsletter.id}${location.search}`;
 
    // Preserve navigation state, but keep original 'from' if it was /inbox' or '/queue'
    const originalFrom =
      location.state?.from === '/inbox' || location.state?.from === '/queue'
        ? location.state.from
        : location.pathname;
    navigate(targetPath, {
      replace: false,
      state: {
        ...location.state,
        from: originalFrom,
        fromNavigation: true,
        fromReadingQueue: isReadingQueue,
        sourceId: sourceId,
        currentFilter: filter,
      },
    });
  }, [
    hasNext,
    currentIndex,
    newsletters,
    currentNewsletterId,
    isReadingQueue,
    sourceId,
    filter,
    navigate,
    location,
    log,
  ]);
 
  return {
    hasPrevious,
    hasNext,
    navigateToPrevious,
    navigateToNext,
    isLoading,
  };
}