대시보드와 주간보고 기능 업데이트

frontend/report/weekly/aggregate.vue

@@ -139,6 +139,7 @@ import { useRouter } from 'vue-router'
 
 const router = useRouter()
 const { fetchCurrentUser, isAdmin } = useAuth()
+const { getWeekInfo, getWeekDates, getWeeksInYear, changeWeek: calcChangeWeek } = useWeekCalc()
 
 const isLoading = ref(false)
 const isLoaded = ref(false)
@@ -178,72 +179,23 @@ onMounted(async () => {
 })
 
 function initCurrentWeek() {
-  const now = new Date()
-  const jan4 = new Date(now.getFullYear(), 0, 4)
-  const jan4Day = jan4.getDay() || 7
-  const week1Monday = new Date(jan4)
-  week1Monday.setDate(jan4.getDate() - jan4Day + 1)
-  
-  const diff = now.getTime() - week1Monday.getTime()
-  const weekNum = Math.floor(diff / (7 * 24 * 60 * 60 * 1000)) + 1
-  
-  selectedYear.value = now.getFullYear()
-  selectedWeek.value = weekNum > 0 ? weekNum : 1
+  const weekInfo = getWeekInfo(new Date())
+  selectedYear.value = weekInfo.year
+  selectedWeek.value = weekInfo.week
   updateWeekDates()
 }
 
 function changeWeek(delta: number) {
-  let year = selectedYear.value
-  let week = selectedWeek.value + delta
-  
-  if (week < 1) {
-    year--
-    week = getWeeksInYear(year)
-  } else if (week > getWeeksInYear(year)) {
-    year++
-    week = 1
-  }
-  
+  const { year, week } = calcChangeWeek(selectedYear.value, selectedWeek.value, delta)
   selectedYear.value = year
   selectedWeek.value = week
   updateWeekDates()
 }
 
-function getWeeksInYear(year: number): number {
-  const dec31 = new Date(year, 11, 31)
-  const dayOfWeek = dec31.getDay()
-  return dayOfWeek >= 4 || dayOfWeek === 0 ? 53 : 52
-}
-
 function updateWeekDates() {
-  const { monday, sunday } = getWeekDates(selectedYear.value, selectedWeek.value)
-  weekStartDate.value = monday
-  weekEndDate.value = sunday
-}
-
-function getWeekDates(year: number, week: number): { monday: string, sunday: string } {
-  const jan4 = new Date(year, 0, 4)
-  const jan4Day = jan4.getDay() || 7
-  const week1Monday = new Date(jan4)
-  week1Monday.setDate(jan4.getDate() - jan4Day + 1)
-  
-  const monday = new Date(week1Monday)
-  monday.setDate(week1Monday.getDate() + (week - 1) * 7)
-  
-  const sunday = new Date(monday)
-  sunday.setDate(monday.getDate() + 6)
-  
-  return {
-    monday: formatDate(monday),
-    sunday: formatDate(sunday)
-  }
-}
-
-function formatDate(date: Date): string {
-  const y = date.getFullYear()
-  const m = String(date.getMonth() + 1).padStart(2, '0')
-  const d = String(date.getDate()).padStart(2, '0')
-  return `${y}-${m}-${d}`
+  const weekInfo = getWeekDates(selectedYear.value, selectedWeek.value)
+  weekStartDate.value = weekInfo.startDateStr
+  weekEndDate.value = weekInfo.endDateStr
 }
 
 async function loadAggregate() {