feat: 概览数据优化

src/views/Dashboard.vue

@@ -659,22 +659,6 @@ const yesterday = new Date(new Date().setDate(new Date().getDate() - 1))
   })
   .replace(/\//g, '-')
 
-const lastWeek = new Date(new Date().setDate(new Date().getDate() - 7))
-  .toLocaleDateString('zh-CN', {
-    year: 'numeric',
-    month: '2-digit',
-    day: '2-digit',
-  })
-  .replace(/\//g, '-')
-
-const lastMonth = new Date(new Date().setMonth(new Date().getMonth() - 1))
-  .toLocaleDateString('zh-CN', {
-    year: 'numeric',
-    month: '2-digit',
-    day: '2-digit',
-  })
-  .replace(/\//g, '-')
-
 // 获取统计数据
 const statisticData = ref<StatisticData | null>(null)
 
@@ -1153,11 +1137,76 @@ const getchartTimes = async (v: string, type: string) => {
 // 空数据提示文字
 const generatePeriodText = (timeRange: string): string => {
   if (timeRange === '0') {
-    return `当前周期（${yesterday} 至 ${today}）暂无订单数据\n\n请在订单流转后等待数据更新查看趋势`
+    const startTime = new Date(new Date().setDate(new Date().getDate() - 14))
+      .toLocaleDateString('zh-CN', {
+        year: 'numeric',
+        month: '2-digit',
+        day: '2-digit',
+      })
+      .replace(/\//g, '-')
+
+    return `当前周期（${startTime} 至 ${yesterday}）暂无订单数据\n\n请在订单流转后等待数据更新查看趋势`
   } else if (timeRange === '1') {
-    return `当前周期（${lastWeek} 至 ${today}）暂无订单数据\n\n请在订单流转后等待数据更新查看趋势`
+    // 8周前该周周一的日期
+    const now = new Date()
+    const eightWeeksAgo = new Date(now.getTime() - 8 * 7 * 24 * 60 * 60 * 1000)
+    const dayOfWeek = eightWeeksAgo.getDay() // 0=周日, 1=周一, ..., 6=周六
+    const daysToMonday = dayOfWeek === 0 ? -6 : 1 - dayOfWeek // 如果是周日，往前6天；否则往前到周一
+    const mondayDate = new Date(
+      eightWeeksAgo.getTime() + daysToMonday * 24 * 60 * 60 * 1000,
+    )
+    const startTime = mondayDate
+      .toLocaleDateString('zh-CN', {
+        year: 'numeric',
+        month: '2-digit',
+        day: '2-digit',
+      })
+      .replace(/\//g, '-')
+
+    // 上个周日的日期
+    const today = new Date()
+    const todayDayOfWeek = today.getDay() // 0=周日, 1=周一, ..., 6=周六
+    const daysToLastSunday = todayDayOfWeek === 0 ? -7 : -todayDayOfWeek // 如果是周日，往前7天；否则往前到上一个周日
+    const lastSunday = new Date(
+      today.getTime() + daysToLastSunday * 24 * 60 * 60 * 1000,
+    )
+    const endTime = lastSunday
+      .toLocaleDateString('zh-CN', {
+        year: 'numeric',
+        month: '2-digit',
+        day: '2-digit',
+      })
+      .replace(/\//g, '-')
+
+    return `当前周期（${startTime} 至 ${endTime}）暂无订单数据\n\n请在订单流转后等待数据更新查看趋势`
   } else if (timeRange === '2') {
-    return `当前周期（${lastMonth} 至 ${today}）暂无订单数据\n\n请在订单流转后等待数据更新查看趋势`
+    // 六个月前该月第一天的日期
+    const now = new Date()
+    const sixMonthsAgo = new Date(now.getFullYear(), now.getMonth() - 6, 1)
+    const startTime = sixMonthsAgo
+      .toLocaleDateString('zh-CN', {
+        year: 'numeric',
+        month: '2-digit',
+        day: '2-digit',
+      })
+      .replace(/\//g, '-')
+
+    // 上一月第一天的日期
+    const currentDate = new Date()
+    const lastMonthFirstDay = new Date(
+      currentDate.getFullYear(),
+      currentDate.getMonth() - 1,
+      1,
+    )
+    const endTime = lastMonthFirstDay
+      .toLocaleDateString('zh-CN', {
+        year: 'numeric',
+        month: '2-digit',
+        day: '2-digit',
+      })
+      .replace(/\//g, '-')
+
+    return `当前周期（${startTime} 至 ${endTime}）暂无订单数据\n\n请在订单流转后等待数据更新查看趋势`
   }
   return ''
 }