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| 1 | +import { useState, useMemo, type ReactNode, type ChangeEvent } from 'react'; |
| 2 | + |
| 3 | +// ─── Types ──────────────────────────────────────────────────────────────────── |
| 4 | + |
| 5 | +export type SortDir = 'asc' | 'desc' | null; |
| 6 | + |
| 7 | +export interface TableColumn<T extends Record<string, unknown> = Record<string, unknown>> { |
| 8 | + /** row 객체의 키 (중첩 불가, flat key) */ |
| 9 | + key: string; |
| 10 | + /** 헤더에 표시할 레이블 */ |
| 11 | + label: string; |
| 12 | + /** 컬럼 너비 (CSS value). 미지정 시 균등 분배 */ |
| 13 | + width?: string; |
| 14 | + /** 셀 텍스트 정렬. 기본 left */ |
| 15 | + align?: 'left' | 'center' | 'right'; |
| 16 | + /** false로 설정하면 정렬 비활성. 기본 true */ |
| 17 | + sortable?: boolean; |
| 18 | + /** 셀 커스텀 렌더링. value = row[key], row = 전체 행 */ |
| 19 | + render?: (value: unknown, row: T) => ReactNode; |
| 20 | +} |
| 21 | + |
| 22 | +export interface DataTableProps<T extends Record<string, unknown> = Record<string, unknown>> { |
| 23 | + columns: TableColumn<T>[]; |
| 24 | + rows: T[]; |
| 25 | + /** 행 고유 키. string 키 이름 또는 함수. 미지정 시 인덱스 사용 */ |
| 26 | + rowKey?: string | ((row: T, index: number) => string); |
| 27 | + /** 페이지 크기 초기값. 기본 20 */ |
| 28 | + pageSize?: number; |
| 29 | + /** 검색창 표시 여부. 기본 true */ |
| 30 | + searchable?: boolean; |
| 31 | + /** 로딩 중 여부 */ |
| 32 | + loading?: boolean; |
| 33 | + /** 빈 상태 메시지 */ |
| 34 | + emptyText?: string; |
| 35 | + className?: string; |
| 36 | +} |
| 37 | + |
| 38 | +// ─── Page size options ──────────────────────────────────────────────────────── |
| 39 | + |
| 40 | +const PAGE_SIZE_OPTIONS = [10, 20, 50, 100]; |
| 41 | + |
| 42 | +// ─── Helpers ────────────────────────────────────────────────────────────────── |
| 43 | + |
| 44 | +function cellText(value: unknown): string { |
| 45 | + if (value === null || value === undefined) return ''; |
| 46 | + if (typeof value === 'object') return JSON.stringify(value); |
| 47 | + return String(value); |
| 48 | +} |
| 49 | + |
| 50 | +function compareValues(a: unknown, b: unknown, dir: 'asc' | 'desc'): number { |
| 51 | + const aStr = cellText(a).toLowerCase(); |
| 52 | + const bStr = cellText(b).toLowerCase(); |
| 53 | + const aNum = Number(a); |
| 54 | + const bNum = Number(b); |
| 55 | + |
| 56 | + let cmp: number; |
| 57 | + if (!Number.isNaN(aNum) && !Number.isNaN(bNum)) { |
| 58 | + cmp = aNum - bNum; |
| 59 | + } else { |
| 60 | + cmp = aStr < bStr ? -1 : aStr > bStr ? 1 : 0; |
| 61 | + } |
| 62 | + return dir === 'asc' ? cmp : -cmp; |
| 63 | +} |
| 64 | + |
| 65 | +// ─── Sort icon ──────────────────────────────────────────────────────────────── |
| 66 | + |
| 67 | +function SortIcon({ dir }: { dir: SortDir }) { |
| 68 | + if (dir === 'asc') return <span className="fs-dt-sort-icon" aria-hidden="true">↑</span>; |
| 69 | + if (dir === 'desc') return <span className="fs-dt-sort-icon" aria-hidden="true">↓</span>; |
| 70 | + return <span className="fs-dt-sort-icon fs-dt-sort-icon-idle" aria-hidden="true">↕</span>; |
| 71 | +} |
| 72 | + |
| 73 | +// ─── Component ──────────────────────────────────────────────────────────────── |
| 74 | + |
| 75 | +export function DataTable<T extends Record<string, unknown> = Record<string, unknown>>({ |
| 76 | + columns, |
| 77 | + rows, |
| 78 | + rowKey, |
| 79 | + pageSize: initialPageSize = 20, |
| 80 | + searchable = true, |
| 81 | + loading = false, |
| 82 | + emptyText = '데이터가 없습니다.', |
| 83 | + className = '', |
| 84 | +}: DataTableProps<T>) { |
| 85 | + const [search, setSearch] = useState(''); |
| 86 | + const [sortKey, setSortKey] = useState<string | null>(null); |
| 87 | + const [sortDir, setSortDir] = useState<SortDir>(null); |
| 88 | + const [page, setPage] = useState(1); |
| 89 | + const [pageSize, setPageSize] = useState(initialPageSize); |
| 90 | + |
| 91 | + // ── 검색 필터 ──────────────────────────────────────────────── |
| 92 | + const filtered = useMemo(() => { |
| 93 | + if (!search.trim()) return rows; |
| 94 | + const q = search.toLowerCase(); |
| 95 | + return rows.filter((row) => |
| 96 | + columns.some((col) => cellText(row[col.key]).toLowerCase().includes(q)), |
| 97 | + ); |
| 98 | + }, [rows, columns, search]); |
| 99 | + |
| 100 | + // ── 정렬 ───────────────────────────────────────────────────── |
| 101 | + const sorted = useMemo(() => { |
| 102 | + if (!sortKey || !sortDir) return filtered; |
| 103 | + return [...filtered].sort((a, b) => |
| 104 | + compareValues(a[sortKey], b[sortKey], sortDir), |
| 105 | + ); |
| 106 | + }, [filtered, sortKey, sortDir]); |
| 107 | + |
| 108 | + // ── 페이지네이션 ───────────────────────────────────────────── |
| 109 | + const totalPages = Math.max(1, Math.ceil(sorted.length / pageSize)); |
| 110 | + const safePage = Math.min(page, totalPages); |
| 111 | + const startIdx = (safePage - 1) * pageSize; |
| 112 | + const paged = sorted.slice(startIdx, startIdx + pageSize); |
| 113 | + |
| 114 | + // 검색/정렬 변경 시 1페이지로 이동 |
| 115 | + const handleSearch = (e: ChangeEvent<HTMLInputElement>) => { |
| 116 | + setSearch(e.target.value); |
| 117 | + setPage(1); |
| 118 | + }; |
| 119 | + |
| 120 | + const handleSort = (key: string) => { |
| 121 | + if (sortKey !== key) { |
| 122 | + setSortKey(key); |
| 123 | + setSortDir('asc'); |
| 124 | + } else if (sortDir === 'asc') { |
| 125 | + setSortDir('desc'); |
| 126 | + } else if (sortDir === 'desc') { |
| 127 | + setSortKey(null); |
| 128 | + setSortDir(null); |
| 129 | + } |
| 130 | + setPage(1); |
| 131 | + }; |
| 132 | + |
| 133 | + const handlePageSize = (e: ChangeEvent<HTMLSelectElement>) => { |
| 134 | + setPageSize(Number(e.target.value)); |
| 135 | + setPage(1); |
| 136 | + }; |
| 137 | + |
| 138 | + // ── 행 키 ──────────────────────────────────────────────────── |
| 139 | + const getRowKey = (row: T, index: number): string => { |
| 140 | + if (!rowKey) return String(index); |
| 141 | + if (typeof rowKey === 'function') return rowKey(row, index); |
| 142 | + return cellText(row[rowKey]) || String(index); |
| 143 | + }; |
| 144 | + |
| 145 | + // ── 빈/로딩 상태 ───────────────────────────────────────────── |
| 146 | + const isEmpty = !loading && paged.length === 0; |
| 147 | + |
| 148 | + return ( |
| 149 | + <div className={`fs-dt ${className}`.trim()}> |
| 150 | + |
| 151 | + {/* ── 툴바 ──────────────────────────────────────────────── */} |
| 152 | + {searchable && ( |
| 153 | + <div className="fs-dt-toolbar"> |
| 154 | + <div className="fs-dt-search-wrap"> |
| 155 | + <span className="fs-dt-search-icon" aria-hidden="true">⌕</span> |
| 156 | + <input |
| 157 | + type="search" |
| 158 | + className="fs-dt-search" |
| 159 | + placeholder="검색..." |
| 160 | + value={search} |
| 161 | + onChange={handleSearch} |
| 162 | + aria-label="테이블 검색" |
| 163 | + /> |
| 164 | + </div> |
| 165 | + <span className="fs-dt-count"> |
| 166 | + {loading ? '로딩 중...' : `${sorted.length.toLocaleString()}개`} |
| 167 | + </span> |
| 168 | + </div> |
| 169 | + )} |
| 170 | + |
| 171 | + {/* ── 테이블 ────────────────────────────────────────────── */} |
| 172 | + <div className="fs-dt-scroll" role="region" aria-label="데이터 테이블"> |
| 173 | + <table className="fs-dt-table"> |
| 174 | + <thead className="fs-dt-thead"> |
| 175 | + <tr> |
| 176 | + {columns.map((col) => { |
| 177 | + const isSorted = sortKey === col.key; |
| 178 | + const canSort = col.sortable !== false; |
| 179 | + const dir: SortDir = isSorted ? sortDir : null; |
| 180 | + return ( |
| 181 | + <th |
| 182 | + key={col.key} |
| 183 | + className={`fs-dt-th${canSort ? ' fs-dt-th-sortable' : ''}${isSorted ? ' fs-dt-th-active' : ''}`} |
| 184 | + style={{ width: col.width, textAlign: col.align ?? 'left' }} |
| 185 | + onClick={canSort ? () => handleSort(col.key) : undefined} |
| 186 | + aria-sort={ |
| 187 | + isSorted |
| 188 | + ? dir === 'asc' ? 'ascending' : 'descending' |
| 189 | + : canSort ? 'none' : undefined |
| 190 | + } |
| 191 | + > |
| 192 | + <span className="fs-dt-th-inner"> |
| 193 | + <span className="fs-dt-th-label">{col.label}</span> |
| 194 | + {canSort && <SortIcon dir={dir} />} |
| 195 | + </span> |
| 196 | + </th> |
| 197 | + ); |
| 198 | + })} |
| 199 | + </tr> |
| 200 | + </thead> |
| 201 | + |
| 202 | + <tbody className="fs-dt-tbody"> |
| 203 | + {loading ? ( |
| 204 | + // 로딩 스켈레톤 |
| 205 | + Array.from({ length: pageSize > 5 ? 5 : pageSize }).map((_, i) => ( |
| 206 | + <tr key={i} className="fs-dt-tr"> |
| 207 | + {columns.map((col) => ( |
| 208 | + <td key={col.key} className="fs-dt-td"> |
| 209 | + <span className="fs-dt-skeleton" /> |
| 210 | + </td> |
| 211 | + ))} |
| 212 | + </tr> |
| 213 | + )) |
| 214 | + ) : isEmpty ? ( |
| 215 | + <tr> |
| 216 | + <td className="fs-dt-empty" colSpan={columns.length}> |
| 217 | + {search ? `"${search}"에 해당하는 결과가 없습니다.` : emptyText} |
| 218 | + </td> |
| 219 | + </tr> |
| 220 | + ) : ( |
| 221 | + paged.map((row, i) => ( |
| 222 | + <tr key={getRowKey(row, startIdx + i)} className="fs-dt-tr"> |
| 223 | + {columns.map((col) => { |
| 224 | + const val = row[col.key]; |
| 225 | + return ( |
| 226 | + <td |
| 227 | + key={col.key} |
| 228 | + className="fs-dt-td" |
| 229 | + style={{ textAlign: col.align ?? 'left' }} |
| 230 | + > |
| 231 | + {col.render ? col.render(val, row) : cellText(val)} |
| 232 | + </td> |
| 233 | + ); |
| 234 | + })} |
| 235 | + </tr> |
| 236 | + )) |
| 237 | + )} |
| 238 | + </tbody> |
| 239 | + </table> |
| 240 | + </div> |
| 241 | + |
| 242 | + {/* ── 페이지네이션 ──────────────────────────────────────── */} |
| 243 | + {!loading && sorted.length > 0 && ( |
| 244 | + <div className="fs-dt-foot"> |
| 245 | + <div className="fs-dt-page-size"> |
| 246 | + <span className="fs-dt-foot-label">행</span> |
| 247 | + <select |
| 248 | + className="fs-dt-page-select" |
| 249 | + value={pageSize} |
| 250 | + onChange={handlePageSize} |
| 251 | + aria-label="페이지 크기" |
| 252 | + > |
| 253 | + {PAGE_SIZE_OPTIONS.map((n) => ( |
| 254 | + <option key={n} value={n}>{n}</option> |
| 255 | + ))} |
| 256 | + </select> |
| 257 | + </div> |
| 258 | + |
| 259 | + <span className="fs-dt-page-info"> |
| 260 | + {(startIdx + 1).toLocaleString()}–{Math.min(startIdx + pageSize, sorted.length).toLocaleString()} / {sorted.length.toLocaleString()} |
| 261 | + </span> |
| 262 | + |
| 263 | + <div className="fs-dt-page-nav"> |
| 264 | + <button |
| 265 | + type="button" |
| 266 | + className="fs-dt-page-btn" |
| 267 | + onClick={() => setPage(1)} |
| 268 | + disabled={safePage === 1} |
| 269 | + aria-label="첫 페이지" |
| 270 | + >«</button> |
| 271 | + <button |
| 272 | + type="button" |
| 273 | + className="fs-dt-page-btn" |
| 274 | + onClick={() => setPage((p) => Math.max(1, p - 1))} |
| 275 | + disabled={safePage === 1} |
| 276 | + aria-label="이전 페이지" |
| 277 | + >‹</button> |
| 278 | + <span className="fs-dt-page-cur">{safePage} / {totalPages}</span> |
| 279 | + <button |
| 280 | + type="button" |
| 281 | + className="fs-dt-page-btn" |
| 282 | + onClick={() => setPage((p) => Math.min(totalPages, p + 1))} |
| 283 | + disabled={safePage === totalPages} |
| 284 | + aria-label="다음 페이지" |
| 285 | + >›</button> |
| 286 | + <button |
| 287 | + type="button" |
| 288 | + className="fs-dt-page-btn" |
| 289 | + onClick={() => setPage(totalPages)} |
| 290 | + disabled={safePage === totalPages} |
| 291 | + aria-label="마지막 페이지" |
| 292 | + >»</button> |
| 293 | + </div> |
| 294 | + </div> |
| 295 | + )} |
| 296 | + </div> |
| 297 | + ); |
| 298 | +} |
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