perf: AdminSchedule 성능 최적화

- filteredSchedules useMemo로 불필요한 재계산 방지
- ScheduleItem React.memo 컴포넌트로 분리하여 리렌더링 방지
- categoryCounts useMemo 맵으로 O(1) 카테고리 카운트 조회
- 카테고리 카운트를 선택된 날짜 기준으로 계산
- useDeferredValue로 달력 점 표시 지연 처리하여 UI 응답성 향상
- selectedDate 변경 시 스크롤 맨 위로 초기화
This commit is contained in:
caadiq 2026-01-09 19:26:52 +09:00
parent a2f89644a6
commit fc35a35987

View file

@ -1,4 +1,4 @@
import { useState, useEffect, useRef, useMemo } from 'react';
import { useState, useEffect, useRef, useMemo, memo, useDeferredValue } from 'react';
import { useNavigate, Link } from 'react-router-dom';
import { motion, AnimatePresence } from 'framer-motion';
import {
@ -13,6 +13,112 @@ import Tooltip from '../../../components/Tooltip';
import useScheduleStore from '../../../stores/useScheduleStore';
import { getTodayKST, formatDate } from '../../../utils/date';
// - React.memo
const ScheduleItem = memo(function ScheduleItem({
schedule,
index,
selectedDate,
categories,
getColorStyle,
navigate,
openDeleteDialog
}) {
const scheduleDate = new Date(schedule.date);
const categoryColor = getColorStyle(categories.find(c => c.id === schedule.category_id)?.color)?.style?.backgroundColor || '#6b7280';
const categoryName = categories.find(c => c.id === schedule.category_id)?.name || '미분류';
const memberNames = schedule.member_names || schedule.members?.map(m => m.name).join(',') || '';
const memberList = memberNames.split(',').filter(name => name.trim());
return (
<motion.div
key={`${schedule.id}-${selectedDate || 'all'}`}
initial={{ opacity: 0 }}
animate={{ opacity: 1 }}
transition={{ delay: Math.min(index, 10) * 0.03 }}
className="p-6 hover:bg-gray-50 transition-colors group"
>
<div className="flex items-start gap-4">
<div className="w-20 text-center flex-shrink-0">
<div className="text-2xl font-bold text-gray-900">
{scheduleDate.getDate()}
</div>
<div className="text-sm text-gray-500">
{['일', '월', '화', '수', '목', '금', '토'][scheduleDate.getDay()]}요일
</div>
</div>
<div
className="w-1.5 rounded-full flex-shrink-0 self-stretch"
style={{ backgroundColor: categoryColor }}
/>
<div className="flex-1 min-w-0">
<h3 className="font-semibold text-gray-900 truncate">{schedule.title}</h3>
<div className="flex items-center gap-3 mt-1 text-sm text-gray-500">
{schedule.time && (
<span className="flex items-center gap-1">
<Clock size={14} />
{schedule.time.slice(0, 5)}
</span>
)}
<span className="flex items-center gap-1">
<Tag size={14} />
{categoryName}
</span>
{schedule.source_name && (
<span className="flex items-center gap-1">
<Link2 size={14} />
{schedule.source_name}
</span>
)}
</div>
{memberList.length > 0 && (
<div className="flex flex-wrap gap-1.5 mt-2">
{memberList.length >= 5 ? (
<span className="px-2 py-0.5 bg-primary/10 text-primary text-xs font-medium rounded-full">
프로미스나인
</span>
) : (
memberList.map((name, i) => (
<span key={i} className="px-2 py-0.5 bg-primary/10 text-primary text-xs font-medium rounded-full">
{name.trim()}
</span>
))
)}
</div>
)}
</div>
<div className="flex items-center gap-2 opacity-0 group-hover:opacity-100 transition-opacity">
{schedule.source_url && (
<a
href={schedule.source_url}
target="_blank"
rel="noopener noreferrer"
onClick={(e) => e.stopPropagation()}
className="p-2 hover:bg-blue-100 rounded-lg transition-colors text-blue-500"
>
<ExternalLink size={18} />
</a>
)}
<button
onClick={() => navigate(`/admin/schedule/${schedule.id}/edit`)}
className="p-2 hover:bg-gray-200 rounded-lg transition-colors text-gray-500"
>
<Edit2 size={18} />
</button>
<button
onClick={() => openDeleteDialog(schedule)}
className="p-2 hover:bg-red-100 rounded-lg transition-colors text-red-500"
>
<Trash2 size={18} />
</button>
</div>
</div>
</motion.div>
);
});
function AdminSchedule() {
const navigate = useNavigate();
@ -166,17 +272,20 @@ function AdminSchedule() {
return colors[color] || 'bg-gray-100 text-gray-700';
};
// (O(1) ) -
// UI
const deferredSchedules = useDeferredValue(schedules);
// (O(1) ) -
const scheduleDateMap = useMemo(() => {
const map = new Map();
schedules.forEach(s => {
deferredSchedules.forEach(s => {
const dateStr = formatDate(s.date);
if (!map.has(dateStr)) {
map.set(dateStr, s);
}
});
return map;
}, [schedules]);
}, [deferredSchedules]);
// (O(1))
const hasSchedule = (day) => {
@ -245,6 +354,13 @@ function AdminSchedule() {
}
}, [loading]); //
//
useEffect(() => {
if (scrollContainerRef.current) {
scrollContainerRef.current.scrollTop = 0;
}
}, [selectedDate]);
//
const handleScroll = (e) => {
setScrollPosition(e.target.scrollTop);
@ -415,38 +531,50 @@ function AdminSchedule() {
return (str || '').toLowerCase().replace(/[\s\-_.,!?#@]/g, '');
};
// ( searchResults, )
const filteredSchedules = isSearchMode
? (searchTerm ? searchResults : []) // : , API
: schedules.filter(schedule => { // :
// ( searchResults, ) - useMemo
const filteredSchedules = useMemo(() => {
if (isSearchMode) {
return searchTerm ? searchResults : [];
}
// :
return schedules.filter(schedule => {
const matchesCategory = selectedCategories.length === 0 || selectedCategories.includes(schedule.category_id);
const scheduleDate = formatDate(schedule.date);
const matchesDate = !selectedDate || scheduleDate === selectedDate;
return matchesCategory && matchesDate;
});
}, [isSearchMode, searchTerm, searchResults, schedules, selectedCategories, selectedDate]);
//
const getSearchCategoryCount = (categoryId) => {
if (!isSearchMode || !searchTerm) {
return schedules.filter(s => s.category_id === categoryId).length;
}
return searchResults.filter(s => s.category_id === categoryId).length;
};
//
const getTotalCount = () => {
if (!isSearchMode || !searchTerm) {
return schedules.length;
}
return searchResults.length;
};
// (useMemo ) -
const categoryCounts = useMemo(() => {
const source = (isSearchMode && searchTerm) ? searchResults : schedules;
const counts = new Map();
let total = 0;
source.forEach(s => {
//
if (selectedDate) {
const scheduleDate = formatDate(s.date);
if (scheduleDate !== selectedDate) return;
}
const catId = s.category_id;
counts.set(catId, (counts.get(catId) || 0) + 1);
total++;
});
counts.set('total', total);
return counts;
}, [schedules, searchResults, isSearchMode, searchTerm, selectedDate]);
// ( )
const sortedCategories = useMemo(() => {
const total = categoryCounts.get('total') || 0;
return categories
.map(category => ({
...category,
count: category.id === 'all' ? getTotalCount() : getSearchCategoryCount(category.id)
count: category.id === 'all' ? total : (categoryCounts.get(category.id) || 0)
}))
.filter(category => category.id === 'all' || category.count > 0)
.sort((a, b) => {
@ -456,7 +584,7 @@ function AdminSchedule() {
if (b.name === '기타') return -1;
return b.count - a.count;
});
}, [categories, schedules, searchResults, isSearchMode, searchTerm]);
}, [categories, categoryCounts]);
return (
<div className="min-h-screen bg-gray-50">
@ -1154,99 +1282,18 @@ function AdminSchedule() {
</div>
</>
) : (
/* 일반 모드: 기존 렌더링 */
/* 일반 모드: ScheduleItem 컴포넌트 사용 */
filteredSchedules.map((schedule, index) => (
<motion.div
<ScheduleItem
key={`${schedule.id}-${selectedDate || 'all'}`}
initial={{ opacity: 0 }}
animate={{ opacity: 1 }}
transition={{ delay: Math.min(index, 10) * 0.03 }}
className="p-6 hover:bg-gray-50 transition-colors group"
>
<div className="flex items-start gap-4">
<div className="w-20 text-center flex-shrink-0">
<div className="text-2xl font-bold text-gray-900">
{new Date(schedule.date).getDate()}
</div>
<div className="text-sm text-gray-500">
{['일', '월', '화', '수', '목', '금', '토'][new Date(schedule.date).getDay()]}요일
</div>
</div>
<div
className="w-1.5 rounded-full flex-shrink-0 self-stretch"
style={{ backgroundColor: getColorStyle(categories.find(c => c.id === schedule.category_id)?.color)?.style?.backgroundColor || '#6b7280' }}
/>
<div className="flex-1 min-w-0">
<h3 className="font-semibold text-gray-900 truncate">{schedule.title}</h3>
<div className="flex items-center gap-3 mt-1 text-sm text-gray-500">
{schedule.time && (
<span className="flex items-center gap-1">
<Clock size={14} />
{schedule.time.slice(0, 5)}
</span>
)}
<span className="flex items-center gap-1">
<Tag size={14} />
{categories.find(c => c.id === schedule.category_id)?.name || '미분류'}
</span>
{schedule.source_name && (
<span className="flex items-center gap-1">
<Link2 size={14} />
{schedule.source_name}
</span>
)}
</div>
{(() => {
const memberNames = schedule.member_names || schedule.members?.map(m => m.name).join(',') || '';
const memberList = memberNames.split(',').filter(name => name.trim());
if (memberList.length === 0) return null;
return (
<div className="flex flex-wrap gap-1.5 mt-2">
{memberList.length >= 5 ? (
<span className="px-2 py-0.5 bg-primary/10 text-primary text-xs font-medium rounded-full">
프로미스나인
</span>
) : (
memberList.map((name, i) => (
<span key={i} className="px-2 py-0.5 bg-primary/10 text-primary text-xs font-medium rounded-full">
{name.trim()}
</span>
))
)}
</div>
);
})()}
</div>
<div className="flex items-center gap-2 opacity-0 group-hover:opacity-100 transition-opacity">
{schedule.source_url && (
<a
href={schedule.source_url}
target="_blank"
rel="noopener noreferrer"
onClick={(e) => e.stopPropagation()}
className="p-2 hover:bg-blue-100 rounded-lg transition-colors text-blue-500"
>
<ExternalLink size={18} />
</a>
)}
<button
onClick={() => navigate(`/admin/schedule/${schedule.id}/edit`)}
className="p-2 hover:bg-gray-200 rounded-lg transition-colors text-gray-500"
>
<Edit2 size={18} />
</button>
<button
onClick={() => openDeleteDialog(schedule)}
className="p-2 hover:bg-red-100 rounded-lg transition-colors text-red-500"
>
<Trash2 size={18} />
</button>
</div>
</div>
</motion.div>
schedule={schedule}
index={index}
selectedDate={selectedDate}
categories={categories}
getColorStyle={getColorStyle}
navigate={navigate}
openDeleteDialog={openDeleteDialog}
/>
))
)}
</div>