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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 | 'use client'; import { useState, useCallback } from 'react'; export interface SavedFilter { /** Unique identifier for the filter */ id: string; /** User-friendly name for the filter */ name: string; /** The filter configuration */ filters: Record<string, unknown>; /** When the filter was created */ createdAt: string; /** When the filter was last used */ lastUsedAt?: string; } interface UseSavedFiltersOptions { /** Maximum number of filters to store (default: 10) */ maxFilters?: number; } interface UseSavedFiltersReturn { /** List of saved filters */ savedFilters: SavedFilter[]; /** Save a new filter */ saveFilter: (name: string, filters: Record<string, unknown>) => SavedFilter; /** Delete a filter by ID */ deleteFilter: (id: string) => void; /** Apply a saved filter (updates lastUsedAt) */ applyFilter: (id: string) => SavedFilter | null; /** Update an existing filter */ updateFilter: (id: string, filters: Record<string, unknown>) => void; /** Rename a filter */ renameFilter: (id: string, name: string) => void; /** Clear all saved filters */ clearAll: () => void; /** Check if a filter with the same configuration already exists */ filterExists: (filters: Record<string, unknown>) => boolean; } /** * Hook for managing saved table filters with localStorage persistence. * * Features: * - Save/load filters from localStorage * - Track filter usage (lastUsedAt) * - Limit maximum stored filters * - Duplicate detection * * @example * ```tsx * const { savedFilters, saveFilter, applyFilter } = useSavedFilters('orders-table'); * * // Save current filters * saveFilter('Pending Orders', { status: 'pending' }); * * // Apply a saved filter * const filter = applyFilter(filterId); * if (filter) { * setColumnFilters(filter.filters); * } * ``` */ export function useSavedFilters( tableId: string, options: UseSavedFiltersOptions = {} ): UseSavedFiltersReturn { const { maxFilters = 10 } = options; const storageKey = `table-filters-${tableId}`; // Initialize state with lazy loader to read from localStorage const [savedFilters, setSavedFilters] = useState<SavedFilter[]>(() => { if (typeof window === 'undefined') return []; try { const stored = localStorage.getItem(storageKey); if (stored) { return JSON.parse(stored) as SavedFilter[]; } } catch { // Ignore parse errors } return []; }); // Persist filters to localStorage const persistFilters = useCallback( (filters: SavedFilter[]) => { if (typeof window === 'undefined') return; try { localStorage.setItem(storageKey, JSON.stringify(filters)); } catch { // Ignore storage errors } }, [storageKey] ); const saveFilter = useCallback( (name: string, filters: Record<string, unknown>): SavedFilter => { const newFilter: SavedFilter = { id: `filter-${Date.now()}-${Math.random().toString(36).slice(2, 9)}`, name: name.trim(), filters, createdAt: new Date().toISOString(), }; setSavedFilters((prev) => { // Remove oldest if at max capacity let updated = [...prev, newFilter]; if (updated.length > maxFilters) { // Sort by lastUsedAt or createdAt, remove oldest updated.sort((a, b) => { const aDate = a.lastUsedAt || a.createdAt; const bDate = b.lastUsedAt || b.createdAt; return new Date(bDate).getTime() - new Date(aDate).getTime(); }); updated = updated.slice(0, maxFilters); } persistFilters(updated); return updated; }); return newFilter; }, [maxFilters, persistFilters] ); const deleteFilter = useCallback( (id: string) => { setSavedFilters((prev) => { const updated = prev.filter((f) => f.id !== id); persistFilters(updated); return updated; }); }, [persistFilters] ); const applyFilter = useCallback( (id: string): SavedFilter | null => { let appliedFilter: SavedFilter | null = null; setSavedFilters((prev) => { const updated = prev.map((f) => { if (f.id === id) { appliedFilter = { ...f, lastUsedAt: new Date().toISOString() }; return appliedFilter; } return f; }); persistFilters(updated); return updated; }); return appliedFilter; }, [persistFilters] ); const updateFilter = useCallback( (id: string, filters: Record<string, unknown>) => { setSavedFilters((prev) => { const updated = prev.map((f) => f.id === id ? { ...f, filters, lastUsedAt: new Date().toISOString() } : f ); persistFilters(updated); return updated; }); }, [persistFilters] ); const renameFilter = useCallback( (id: string, name: string) => { setSavedFilters((prev) => { const updated = prev.map((f) => (f.id === id ? { ...f, name: name.trim() } : f)); persistFilters(updated); return updated; }); }, [persistFilters] ); const clearAll = useCallback(() => { setSavedFilters([]); if (typeof window !== 'undefined') { try { localStorage.removeItem(storageKey); } catch { // Ignore storage errors } } }, [storageKey]); const filterExists = useCallback( (filters: Record<string, unknown>): boolean => { const filterStr = JSON.stringify(filters); return savedFilters.some((f) => JSON.stringify(f.filters) === filterStr); }, [savedFilters] ); return { savedFilters, saveFilter, deleteFilter, applyFilter, updateFilter, renameFilter, clearAll, filterExists, }; } |