feat: implement last 24 hours date range preset and update filters in UsageView

frontend/src/views/admin/UsageView.vue

@@ -5,10 +5,20 @@
       <!-- Charts Section -->
       <div class="space-y-4">
         <div class="card p-4">
-          <div class="flex items-center gap-4">
-            <span class="text-sm font-medium text-gray-700 dark:text-gray-300">{{ t('admin.dashboard.granularity') }}:</span>
-            <div class="w-28">
-              <Select v-model="granularity" :options="granularityOptions" @change="loadChartData" />
+          <div class="flex flex-wrap items-center gap-4">
+            <div class="flex items-center gap-2">
+              <span class="text-sm font-medium text-gray-700 dark:text-gray-300">{{ t('admin.dashboard.timeRange') }}:</span>
+              <DateRangePicker
+                v-model:start-date="startDate"
+                v-model:end-date="endDate"
+                @change="onDateRangeChange"
+              />
+            </div>
+            <div class="ml-auto flex items-center gap-2">
+              <span class="text-sm font-medium text-gray-700 dark:text-gray-300">{{ t('admin.dashboard.granularity') }}:</span>
+              <div class="w-28">
+                <Select v-model="granularity" :options="granularityOptions" @change="loadChartData" />
+              </div>
             </div>
           </div>
         </div>
@@ -41,7 +51,7 @@
           <TokenUsageTrend :trend-data="trendData" :loading="chartsLoading" />
         </div>
       </div>
-      <UsageFilters v-model="filters" v-model:startDate="startDate" v-model:endDate="endDate" :exporting="exporting" @change="applyFilters" @refresh="refreshData" @reset="resetFilters" @cleanup="openCleanupDialog" @export="exportToExcel">
+      <UsageFilters v-model="filters" :start-date="startDate" :end-date="endDate" :exporting="exporting" @change="applyFilters" @refresh="refreshData" @reset="resetFilters" @cleanup="openCleanupDialog" @export="exportToExcel">
         <template #after-reset>
           <div class="relative" ref="columnDropdownRef">
             <button
@@ -106,7 +116,7 @@ import { useRoute } from 'vue-router'
 import { useAppStore } from '@/stores/app'; import { adminAPI } from '@/api/admin'; import { adminUsageAPI } from '@/api/admin/usage'
 import { formatReasoningEffort } from '@/utils/format'
 import { resolveUsageRequestType, requestTypeToLegacyStream } from '@/utils/usageRequestType'
-import AppLayout from '@/components/layout/AppLayout.vue'; import Pagination from '@/components/common/Pagination.vue'; import Select from '@/components/common/Select.vue'
+import AppLayout from '@/components/layout/AppLayout.vue'; import Pagination from '@/components/common/Pagination.vue'; import Select from '@/components/common/Select.vue'; import DateRangePicker from '@/components/common/DateRangePicker.vue'
 import UsageStatsCards from '@/components/admin/usage/UsageStatsCards.vue'; import UsageFilters from '@/components/admin/usage/UsageFilters.vue'
 import UsageTable from '@/components/admin/usage/UsageTable.vue'; import UsageExportProgress from '@/components/admin/usage/UsageExportProgress.vue'
 import UsageCleanupDialog from '@/components/admin/usage/UsageCleanupDialog.vue'
@@ -158,9 +168,22 @@ const formatLD = (d: Date) => {
   const day = String(d.getDate()).padStart(2, '0')
   return `${year}-${month}-${day}`
 }
-const getTodayLocalDate = () => formatLD(new Date())
-const getGranularityForRange = (start: string, end: string): 'day' | 'hour' => start === end ? 'hour' : 'day'
-const startDate = ref(getTodayLocalDate()); const endDate = ref(getTodayLocalDate())
+const getLast24HoursRangeDates = (): { start: string; end: string } => {
+  const end = new Date()
+  const start = new Date(end.getTime() - 24 * 60 * 60 * 1000)
+  return {
+    start: formatLD(start),
+    end: formatLD(end)
+  }
+}
+const getGranularityForRange = (start: string, end: string): 'day' | 'hour' => {
+  const startTime = new Date(`${start}T00:00:00`).getTime()
+  const endTime = new Date(`${end}T00:00:00`).getTime()
+  const daysDiff = Math.ceil((endTime - startTime) / (1000 * 60 * 60 * 24))
+  return daysDiff <= 1 ? 'hour' : 'day'
+}
+const defaultRange = getLast24HoursRangeDates()
+const startDate = ref(defaultRange.start); const endDate = ref(defaultRange.end)
 const filters = ref<AdminUsageQueryParams>({ user_id: undefined, model: undefined, group_id: undefined, request_type: undefined, billing_type: null, start_date: startDate.value, end_date: endDate.value })
 const pagination = reactive({ page: 1, page_size: 20, total: 0 })
 
@@ -197,6 +220,18 @@ const applyRouteQueryFilters = () => {
   granularity.value = getGranularityForRange(startDate.value, endDate.value)
 }
 
+const onDateRangeChange = (range: { startDate: string; endDate: string; preset: string | null }) => {
+  startDate.value = range.startDate
+  endDate.value = range.endDate
+  filters.value = {
+    ...filters.value,
+    start_date: range.startDate,
+    end_date: range.endDate
+  }
+  granularity.value = getGranularityForRange(range.startDate, range.endDate)
+  applyFilters()
+}
+
 const loadLogs = async () => {
   abortController?.abort(); const c = new AbortController(); abortController = c; loading.value = true
   try {
@@ -260,7 +295,14 @@ const loadChartData = async () => {
 }
 const applyFilters = () => { pagination.page = 1; loadLogs(); loadStats(); loadChartData() }
 const refreshData = () => { loadLogs(); loadStats(); loadChartData() }
-const resetFilters = () => { startDate.value = getTodayLocalDate(); endDate.value = getTodayLocalDate(); filters.value = { start_date: startDate.value, end_date: endDate.value, request_type: undefined, billing_type: null }; granularity.value = getGranularityForRange(startDate.value, endDate.value); applyFilters() }
+const resetFilters = () => {
+  const range = getLast24HoursRangeDates()
+  startDate.value = range.start
+  endDate.value = range.end
+  filters.value = { start_date: startDate.value, end_date: endDate.value, request_type: undefined, billing_type: null }
+  granularity.value = getGranularityForRange(startDate.value, endDate.value)
+  applyFilters()
+}
 const handlePageChange = (p: number) => { pagination.page = p; loadLogs() }
 const handlePageSizeChange = (s: number) => { pagination.page_size = s; pagination.page = 1; loadLogs() }
 const cancelExport = () => exportAbortController?.abort()