新增退款待审核角标提醒

2026-08-28 23:10:07 +08:00
parent 41a5b49450
commit a9a9127076
8 changed files with 176 additions and 1 deletions
@@ -0,0 +1,89 @@
+import { computed, onBeforeUnmount, onMounted, ref, watch } from 'vue'
+import type { RouteLocationNormalizedLoaded } from 'vue-router'
+
+import { fetchPendingRefundCount } from '@/features/orders/api/orders'
+import { useAdminSessionStore } from '@/stores/adminSession'
+
+export const pendingRefundCountChangedEvent = 'pending-refund-count-changed'
+
+export function usePendingRefundCount(route: RouteLocationNormalizedLoaded) {
+  const adminSession = useAdminSessionStore()
+  const count = ref(0)
+  let timer: number | null = null
+  let requestID = 0
+
+  const label = computed(() => (count.value > 99 ? '99+' : String(count.value)))
+  const canReviewRefund = computed(
+    () => adminSession.isSuperAdmin || adminSession.hasPermission('order:close')
+  )
+
+  function stopPolling() {
+    if (timer === null) return
+    window.clearInterval(timer)
+    timer = null
+  }
+
+  async function refresh() {
+    if (!canReviewRefund.value) {
+      count.value = 0
+      return
+    }
+    const currentID = ++requestID
+    try {
+      const nextCount = await fetchPendingRefundCount()
+      if (currentID === requestID) count.value = nextCount
+    } catch {
+      // 角标加载失败时保持当前数字，避免影响后台其他操作。
+    }
+  }
+
+  function startPolling() {
+    stopPolling()
+    void refresh()
+    timer = window.setInterval(refresh, 30_000)
+  }
+
+  function handleVisibilityChange() {
+    if (document.hidden) {
+      stopPolling()
+      return
+    }
+    startPolling()
+  }
+
+  function handleCountChanged() {
+    void refresh()
+  }
+
+  onMounted(() => {
+    window.addEventListener(pendingRefundCountChangedEvent, handleCountChanged)
+    document.addEventListener('visibilitychange', handleVisibilityChange)
+    if (!document.hidden) startPolling()
+  })
+
+  onBeforeUnmount(() => {
+    stopPolling()
+    window.removeEventListener(pendingRefundCountChangedEvent, handleCountChanged)
+    document.removeEventListener('visibilitychange', handleVisibilityChange)
+  })
+
+  watch(canReviewRefund, canReview => {
+    if (canReview && !document.hidden) {
+      startPolling()
+      return
+    }
+    stopPolling()
+    count.value = 0
+  })
+
+  watch(
+    () => route.fullPath,
+    () => void refresh()
+  )
+
+  return {
+    pendingRefundCount: count,
+    pendingRefundLabel: label,
+    refreshPendingRefundCount: refresh,
+  }
+}