refactor(dealer/orders): 重构订单页面支持分页和下拉刷新

- 添加下拉刷新和上拉加载更多功能
-优化订单数据获取逻辑，支持分页请求
- 移除不必要的订单统计和层级信息
-调整订单列表渲染方式，提高性能

src/dealer/orders/index.tsx

@@ -1,6 +1,6 @@
 import React, {useState, useEffect, useCallback} from 'react'
-import {View, Text} from '@tarojs/components'
-import {Empty, Tag, Space, PullToRefresh, Loading} from '@nutui/nutui-react-taro'
+import {View, Text, ScrollView} from '@tarojs/components'
+import {Empty, Tag, PullToRefresh, Loading} from '@nutui/nutui-react-taro'
 import Taro from '@tarojs/taro'
 import {pageShopDealerOrder} from '@/api/shop/shopDealerOrder'
 import {useDealerUser} from '@/hooks/useDealerUser'
@@ -9,84 +9,54 @@ import type {ShopDealerOrder} from '@/api/shop/shopDealerOrder/model'
 interface OrderWithDetails extends ShopDealerOrder {
   orderNo?: string
   customerName?: string
-  totalCommission?: string
-  // 当前用户在此订单中的层级和佣金
-  userLevel?: 1 | 2 | 3
   userCommission?: string
 }
 
 const DealerOrders: React.FC = () => {
   const [loading, setLoading] = useState<boolean>(false)
+  const [refreshing, setRefreshing] = useState<boolean>(false)
+  const [loadingMore, setLoadingMore] = useState<boolean>(false)
   const [orders, setOrders] = useState<OrderWithDetails[]>([])
+  const [currentPage, setCurrentPage] = useState<number>(1)
+  const [hasMore, setHasMore] = useState<boolean>(true)
 
   const {dealerUser} = useDealerUser()
 
-  // 获取订单数据 - 查询当前用户作为各层级分销商的所有订单
-  const fetchOrders = useCallback(async () => {
+  // 获取订单数据
+  const fetchOrders = useCallback(async (page: number = 1, isRefresh: boolean = false) => {
     if (!dealerUser?.userId) return
 
     try {
+      if (isRefresh) {
+        setRefreshing(true)
+      } else if (page === 1) {
         setLoading(true)
-
-      // 并行查询三个层级的订单
-      const [level1Result] = await Promise.all([
-        // 一级分销商订单
-        pageShopDealerOrder({
-          page: 1,
-          limit: 10
-        })
-      ])
-
-      const allOrders: OrderWithDetails[] = []
-      const stats = {
-        totalOrders: 0,
-        totalCommission: '0.00',
-        pendingCommission: '0.00',
-        level1: {orders: 0, commission: '0.00'},
-        level2: {orders: 0, commission: '0.00'},
-        level3: {orders: 0, commission: '0.00'}
+      } else {
+        setLoadingMore(true)
       }
 
-      // 处理一级分销订单
-      if (level1Result?.list) {
-        const level1Orders = level1Result.list.map(order => ({
+      const result = await pageShopDealerOrder({
+        page,
+        limit: 10
+      })
+
+      if (result?.list) {
+        const newOrders = result.list.map(order => ({
           ...order,
           orderNo: `${order.orderId}`,
           customerName: `用户${order.userId}`,
-          userLevel: 1 as const,
-          userCommission: order.firstMoney || '0.00',
-          totalCommission: (
-            parseFloat(order.firstMoney || '0') +
-            parseFloat(order.secondMoney || '0') +
-            parseFloat(order.thirdMoney || '0')
-          ).toFixed(2)
+          userCommission: order.firstMoney || '0.00'
         }))
 
-        allOrders.push(...level1Orders)
-        stats.level1.orders = level1Orders.length
-        stats.level1.commission = level1Orders.reduce((sum, order) =>
-          sum + parseFloat(order.userCommission || '0'), 0
-        ).toFixed(2)
+        if (page === 1) {
+          setOrders(newOrders)
+        } else {
+          setOrders(prev => [...prev, ...newOrders])
         }
 
-      // 去重（同一个订单可能在多个层级中出现）
-      const uniqueOrders = allOrders.filter((order, index, self) =>
-        index === self.findIndex(o => o.orderId === order.orderId)
-      )
-
-      // 计算总统计
-      stats.totalOrders = uniqueOrders.length
-      stats.totalCommission = (
-        parseFloat(stats.level1.commission) +
-        parseFloat(stats.level2.commission) +
-        parseFloat(stats.level3.commission)
-      ).toFixed(2)
-      stats.pendingCommission = allOrders
-        .filter(order => order.isSettled === 0)
-        .reduce((sum, order) => sum + parseFloat(order.userCommission || '0'), 0)
-        .toFixed(2)
-
-      setOrders(uniqueOrders)
+        setHasMore(newOrders.length === 10)
+        setCurrentPage(page)
+      }
 
     } catch (error) {
       console.error('获取分销订单失败:', error)
@@ -96,18 +66,27 @@ const DealerOrders: React.FC = () => {
       })
     } finally {
       setLoading(false)
+      setRefreshing(false)
+      setLoadingMore(false)
     }
   }, [dealerUser?.userId])
 
-  // 刷新数据
+  // 下拉刷新
   const handleRefresh = async () => {
-    await fetchOrders()
+    await fetchOrders(1, true)
+  }
+
+  // 加载更多
+  const handleLoadMore = async () => {
+    if (!loadingMore && hasMore) {
+      await fetchOrders(currentPage + 1)
+    }
   }
 
   // 初始化加载数据
   useEffect(() => {
     if (dealerUser?.userId) {
-      fetchOrders().then()
+      fetchOrders(1)
     }
   }, [fetchOrders])
 
@@ -126,34 +105,21 @@ const DealerOrders: React.FC = () => {
   const renderOrderItem = (order: OrderWithDetails) => (
     <View key={order.id} className="bg-white rounded-lg p-4 mb-3 shadow-sm">
       <View className="flex justify-between items-start mb-1">
-        <Space>
         <Text className="font-semibold text-gray-800">
           订单号：{order.orderNo}
         </Text>
-          {/* 显示用户在此订单中的层级 */}
-          {/*<Text className="text-xs text-blue-500">*/}
-          {/*  {order.userLevel === 1 && '一级分销'}*/}
-          {/*  {order.userLevel === 2 && '二级分销'}*/}
-          {/*  {order.userLevel === 3 && '三级分销'}*/}
-          {/*</Text>*/}
-        </Space>
         <Tag type={getStatusColor(order.isSettled, order.isInvalid)}>
           {getStatusText(order.isSettled, order.isInvalid)}
         </Tag>
       </View>
 
       <View className="flex justify-between items-center mb-1">
-        <Space>
         <Text className="text-sm text-gray-400">
           订单金额：¥{order.orderPrice || '0.00'}
         </Text>
         <Text className="text-sm text-orange-500 font-semibold">
           我的佣金：¥{order.userCommission}
         </Text>
-          {/*<Text className="text-xs text-gray-400">*/}
-          {/*  总佣金：¥{order.totalCommission}*/}
-          {/*</Text>*/}
-        </Space>
       </View>
 
       <View className="flex justify-between items-center">
@@ -167,26 +133,6 @@ const DealerOrders: React.FC = () => {
     </View>
   )
 
-  // 根据状态和层级过滤订单
-  const getFilteredOrders = (filter: string) => {
-    switch (filter) {
-      case '1': // 一级分销
-        return orders.filter(order => order.userLevel === 1)
-      case '2': // 二级分销
-        return orders.filter(order => order.userLevel === 2)
-      case '3': // 三级分销
-        return orders.filter(order => order.userLevel === 3)
-      case '4': // 待结算
-        return orders.filter(order => order.isSettled === 0 && order.isInvalid === 0)
-      case '5': // 已结算
-        return orders.filter(order => order.isSettled === 1)
-      case '6': // 已失效
-        return orders.filter(order => order.isInvalid === 1)
-      default: // 全部
-        return orders
-    }
-  }
-
   if (!dealerUser) {
     return (
       <View className="bg-gray-50 min-h-screen flex items-center justify-center">
@@ -197,20 +143,48 @@ const DealerOrders: React.FC = () => {
   }
 
   return (
-    <View className="min-h-screen">
-      {/* 订单列表 */}
+    <View className="min-h-screen bg-gray-50">
+      <PullToRefresh
+        onRefresh={handleRefresh}
+        disabled={refreshing}
+        pullingText="下拉刷新"
+        canReleaseText="释放刷新"
+        refreshingText="刷新中..."
+        completeText="刷新完成"
+      >
+        <ScrollView
+          scrollY
+          className="h-screen"
+          onScrollToLower={handleLoadMore}
+          lowerThreshold={50}
+        >
           <View className="p-4">
-        {loading ? (
+            {loading && orders.length === 0 ? (
               <View className="text-center py-8">
                 <Loading/>
                 <Text className="text-gray-500 mt-2">加载中...</Text>
               </View>
-        ) : getFilteredOrders('0').length > 0 ? (
-          getFilteredOrders('0').map(renderOrderItem)
+            ) : orders.length > 0 ? (
+              <>
+                {orders.map(renderOrderItem)}
+                {loadingMore && (
+                  <View className="text-center py-4">
+                    <Loading/>
+                    <Text className="text-gray-500 mt-1 text-sm">加载更多...</Text>
+                  </View>
+                )}
+                {!hasMore && orders.length > 0 && (
+                  <View className="text-center py-4">
+                    <Text className="text-gray-400 text-sm">没有更多数据了</Text>
+                  </View>
+                )}
+              </>
             ) : (
               <Empty description="暂无分销订单"/>
             )}
           </View>
+        </ScrollView>
+      </PullToRefresh>
     </View>
   )
 }