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import type { NewsletterFilter } from '@common/types/cache';
import type { TimeRange } from '@web/components/TimeFilter';
import React, { createContext, useCallback, useContext, useEffect, useMemo, useRef } from 'react';
import type { InboxFilterType } from '../hooks/useInboxFilters'; // Import the shared type
export interface FilterState {
filter: InboxFilterType;
sourceFilter: string | null;
timeRange: TimeRange;
tagIds: string[];
groupFilters: string[];
sortBy: string;
sortOrder: 'asc' | 'desc';
}
export interface FilterActions {
setFilter: (filter: FilterState['filter']) => void;
setSourceFilter: (sourceId: string | null) => void;
setTimeRange: (range: TimeRange) => void;
setTagIds: (tagIds: string[]) => void;
setGroupFilters: (groupIds: string[]) => void;
toggleTag: (tagId: string) => void;
addTag: (tagId: string) => void;
removeTag: (tagId: string) => void;
clearTags: () => void;
resetFilters: () => void;
updateFilters: (updates: Partial<FilterState>) => void;
setSortBy: (sortBy: string) => void;
setSortOrder: (sortOrder: 'asc' | 'desc') => void;
}
export interface FilterContextType extends FilterState, FilterActions {
newsletterFilter: NewsletterFilter;
hasActiveFilters: boolean;
isFilterActive: (filterName: keyof FilterState) => boolean;
useLocalTagFiltering: boolean;
}
const FilterContext = createContext<FilterContextType | undefined>(undefined);
interface FilterProviderProps {
children: React.ReactNode;
onFilterChange?: (filters: FilterState, newsletterFilter: NewsletterFilter) => void;
debounceTagsMs?: number;
useLocalTagFiltering?: boolean;
}
export const FilterProvider: React.FC<FilterProviderProps> = ({
children,
onFilterChange,
useLocalTagFiltering = false,
}) => {
const { params, updateParams, resetParams } = useInboxUrlParams();
// Track last filter state to prevent unnecessary updates
const lastNewsletterFilterRef = useRef<string>('');
const lastFilterStateRef = useRef<string>('');
// Extract filter state from URL params
const validFilters = ['unread', 'read', 'liked', 'archived'];
const filterValue = params.filter as FilterState['filter'];
const filter: FilterState['filter'] = validFilters.includes(filterValue) ? filterValue : 'unread';
const filterState: FilterState = useMemo(() => {
return {
filter,
sourceFilter: (params.source as string) || null,
timeRange: (params.time as TimeRange) || 'all',
tagIds: (params.tags as string[]) || [],
groupFilters: (params.groups as string[]) || [],
sortBy: (params.sort as string) || 'received_at',
sortOrder: (params.order as 'asc' | 'desc') || 'desc',
};
}, [filter, params.source, params.time, params.tags, params.groups, params.sort, params.order]);
// Generate newsletter filter object with stable memoization
const newsletterFilter = useMemo(() => {
const filters: NewsletterFilter = {};
// Handle status filter
switch (filterState.filter) {
case 'unread':
default: // 'unread' is the new default
filters.isRead = false;
filters.isArchived = false;
break;
case 'read':
filters.isRead = true;
filters.isArchived = false;
break;
case 'liked':
filters.isLiked = true;
// Show all liked newsletters, including archived ones
break;
case 'archived':
filters.isArchived = true;
// No isRead filter for archived, show all archived
break;
}
// Handle source filter
if (filterState.sourceFilter) {
filters.sourceIds = [filterState.sourceFilter];
}
// Handle tag filter (only include in server filter if not using local filtering)
if (!useLocalTagFiltering && filterState.tagIds.length > 0) {
filters.tagIds = [...filterState.tagIds]; // Create a new array to ensure stability
}
// Handle time range filter
if (filterState.timeRange && filterState.timeRange !== 'all') {
// Use local time for date calculations so 'Today' reflects the user's local day
const now = new Date();
let dateFrom: Date;
let dateTo: Date | undefined;
switch (filterState.timeRange) {
case 'day': {
// Start of the local day (local midnight)
const startOfLocalDay = new Date(now);
startOfLocalDay.setHours(0, 0, 0, 0);
dateFrom = startOfLocalDay;
break;
}
case 'week': {
// Start of the current week (Monday 00:00 local time)
const startOfWeek = new Date(now);
startOfWeek.setHours(0, 0, 0, 0);
const day = startOfWeek.getDay(); // 0=Sun,1=Mon,...6=Sat
const diffSinceMonday = (day + 6) % 7; // days since Monday
startOfWeek.setDate(startOfWeek.getDate() - diffSinceMonday);
dateFrom = startOfWeek;
break;
}
case 'month': {
// Start of the current month at local midnight
const startOfMonth = new Date(now.getFullYear(), now.getMonth(), 1);
startOfMonth.setHours(0, 0, 0, 0);
dateFrom = startOfMonth;
break;
}
case 'last24h': {
// Previous calendar day (local): [yesterday 00:00, today 00:00)
const startOfToday = new Date(now);
startOfToday.setHours(0, 0, 0, 0);
const startOfYesterday = new Date(startOfToday);
startOfYesterday.setDate(startOfYesterday.getDate() - 1);
dateFrom = startOfYesterday;
dateTo = startOfToday;
break;
}
case '2days': {
// Rolling 2 days (48 hours) based on local time
const twoDaysAgo = new Date(now);
twoDaysAgo.setDate(now.getDate() - 2);
dateFrom = twoDaysAgo;
break;
}
default: {
// For unsupported values, fall back to start of current week
const startOfWeek = new Date(now);
startOfWeek.setHours(0, 0, 0, 0);
const day = startOfWeek.getDay();
const diffSinceMonday = (day + 6) % 7;
startOfWeek.setDate(startOfWeek.getDate() - diffSinceMonday);
dateFrom = startOfWeek;
}
}
filters.dateFrom = dateFrom.toISOString();
if (dateTo) {
filters.dateTo = dateTo.toISOString();
}
}
// Handle sort parameters
if (filterState.sortBy) {
filters.orderBy = filterState.sortBy;
}
if (filterState.sortOrder) {
filters.orderDirection = filterState.sortOrder;
}
return filters;
}, [filterState, useLocalTagFiltering]);
// Check if any filters are active (non-default)
const hasActiveFilters = useMemo(() => {
// 'unread' is the default for status. Active if not 'unread' or other filters are set.
return (
filterState.filter !== 'unread' ||
filterState.sourceFilter !== null ||
filterState.timeRange !== 'all' ||
filterState.tagIds.length > 0 ||
filterState.sortBy !== 'received_at' ||
filterState.sortOrder !== 'desc'
);
}, [filterState.filter, filterState.sourceFilter, filterState.timeRange, filterState.tagIds, filterState.sortBy, filterState.sortOrder]);
// Check if a specific filter is active
const isFilterActive = useCallback(
(filterName: keyof FilterState): boolean => {
switch (filterName) {
case 'filter':
// 'unread' is the default. Active if it's 'liked' or 'archived'.
return filterState.filter !== 'unread';
case 'sourceFilter':
return filterState.sourceFilter !== null;
case 'timeRange':
return filterState.timeRange !== 'all'; // 'all' time is default
case 'tagIds':
return filterState.tagIds.length > 0;
case 'sortBy':
return filterState.sortBy !== 'received_at';
case 'sortOrder':
return filterState.sortOrder !== 'desc';
default:
return false;
}
},
[filterState.filter, filterState.sourceFilter, filterState.timeRange, filterState.tagIds, filterState.sortBy, filterState.sortOrder]
);
// Only trigger onFilterChange when the newsletterFilter has actually changed
useEffect(() => {
if (onFilterChange) {
const currentFilterString = JSON.stringify(newsletterFilter);
const currentFilterStateString = JSON.stringify(filterState);
// Prevent unnecessary calls if both newsletterFilter and filterState haven't changed
if (
lastNewsletterFilterRef.current !== currentFilterString ||
lastFilterStateRef.current !== currentFilterStateString
) {
lastNewsletterFilterRef.current = currentFilterString;
lastFilterStateRef.current = currentFilterStateString;
onFilterChange(filterState, newsletterFilter);
}
}
}, [newsletterFilter, filterState, onFilterChange]);
// Action creators
const setFilter = useCallback(
(filter: FilterState['filter']) => {
updateParams({ filter });
},
[updateParams]
);
const setSourceFilter = useCallback(
(sourceId: string | null) => {
updateParams({ source: sourceId });
},
[updateParams]
);
const setTimeRange = useCallback(
(range: TimeRange) => {
updateParams({ time: range });
},
[updateParams]
);
const setTagIds = useCallback(
(tagIds: string[]) => {
updateParams({ tags: tagIds });
},
[updateParams]
);
const setGroupFilters = useCallback(
(groupIds: string[]) => {
updateParams({ groups: groupIds });
},
[updateParams]
);
const toggleTag = useCallback(
(tagId: string) => {
const currentTags = filterState.tagIds;
const newTags = currentTags.includes(tagId)
? currentTags.filter((id) => id !== tagId)
: [...currentTags, tagId];
setTagIds(newTags);
},
[filterState.tagIds, setTagIds]
);
const addTag = useCallback(
(tagId: string) => {
const currentTags = filterState.tagIds;
if (!currentTags.includes(tagId)) {
setTagIds([...currentTags, tagId]);
}
},
[filterState.tagIds, setTagIds]
);
const removeTag = useCallback(
(tagId: string) => {
const currentTags = filterState.tagIds;
setTagIds(currentTags.filter((id) => id !== tagId));
},
[filterState.tagIds, setTagIds]
);
const clearTags = useCallback(() => {
setTagIds([]);
}, [setTagIds]);
const resetFilters = useCallback(() => {
resetParams();
}, [resetParams]);
const updateFilters = useCallback(
(updates: Partial<FilterState>) => {
const urlUpdates: any = {};
if ('filter' in updates) urlUpdates.filter = updates.filter;
if ('sourceFilter' in updates) urlUpdates.source = updates.sourceFilter;
if ('timeRange' in updates) urlUpdates.time = updates.timeRange;
if ('tagIds' in updates) urlUpdates.tags = updates.tagIds;
if ('groupFilters' in updates) urlUpdates.groups = updates.groupFilters;
if ('sortBy' in updates) urlUpdates.sort = updates.sortBy;
if ('sortOrder' in updates) urlUpdates.order = updates.sortOrder;
updateParams(urlUpdates);
},
[updateParams]
);
// Sort action creators
const setSortBy = useCallback(
(sortBy: string) => {
updateParams(() => ({
filter: filterState.filter,
source: filterState.sourceFilter,
time: filterState.timeRange,
tags: filterState.tagIds,
groups: filterState.groupFilters,
sort: sortBy,
order: filterState.sortOrder,
}));
},
[updateParams, filterState]
);
const setSortOrder = useCallback(
(sortOrder: 'asc' | 'desc') => {
updateParams(() => ({
filter: filterState.filter,
source: filterState.sourceFilter,
time: filterState.timeRange,
tags: filterState.tagIds,
groups: filterState.groupFilters,
sort: filterState.sortBy,
order: sortOrder,
}));
},
[updateParams, filterState]
);
const contextValue: FilterContextType = {
// State
...filterState,
newsletterFilter,
hasActiveFilters,
useLocalTagFiltering,
// Actions
setFilter,
setSourceFilter,
setTimeRange,
setTagIds,
setGroupFilters,
toggleTag,
addTag,
removeTag,
clearTags,
resetFilters,
updateFilters,
isFilterActive,
setSortBy,
setSortOrder,
};
return <FilterContext.Provider value={contextValue}>{children}</FilterContext.Provider>;
};
export const useFilters = (): FilterContextType => {
const context = useContext(FilterContext);
if (context === undefined) {
throw new Error('useFilters must be used within a FilterProvider');
}
return context;
};
// Convenience hooks for specific filter types
export const useStatusFilter = () => {
const { filter, setFilter } = useFilters();
return { filter, setFilter };
};
export const useSourceFilter = () => {
const { sourceFilter, setSourceFilter } = useFilters();
return { sourceFilter, setSourceFilter };
};
export const useTimeFilter = () => {
const { timeRange, setTimeRange } = useFilters();
return { timeRange, setTimeRange };
};
export const useTagFilter = () => {
const { tagIds, setTagIds, toggleTag, addTag, removeTag, clearTags } = useFilters();
return { tagIds, setTagIds, toggleTag, addTag, removeTag, clearTags };
};
export default FilterContext;
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