首页推荐修改

src/pages/index/index.tsx

@@ -1,13 +1,14 @@
-import { useCallback, useMemo, useState } from 'react'
-import Taro, { useDidShow } from '@tarojs/taro'
+import { useCallback, useMemo, useRef, useState } from 'react'
+import Taro, { useDidShow, useReachBottom } from '@tarojs/taro'
 import { View, Text, Image } from '@tarojs/components'
 import { Grid, GridItem, Icon, Search, Swiper, SwiperItem } from '@antmjs/vantui'
 import useCartStore from '@/stores/cart/useCartStore'
 import { getHomeConfigApi } from '@/services/home'
 import type { HomeConfig } from '@/services/home'
-import { getProductListApi } from '@/services/product'
+import { getSpecialListApi, normalizeSpecialCart } from '@/services/special'
 import { getProductCover } from '@/types/product'
 import type { Product, ProductCartPatch } from '@/types/product'
+import { getToken } from '@/utils/request'
 import CartBall from '@/components/CartBall'
 import CartStepper from '@/components/CartStepper'
 import {formatRetailPrice, formatSpec} from '@/utils/format'
@@ -17,6 +18,9 @@ import './index.less'
 const PENDING_CATEGORY_KEY = 'product_category_id'
 const PENDING_KEYWORD_KEY = 'product_keyword'
 
+/** 特价推荐每页条数 */
+const SPECIAL_PAGE_SIZE = 10
+
 /** tabBar 页面路径（link 跳转需改用 switchTab） */
 const TAB_PATHS = [
   'pages/index/index',
@@ -45,8 +49,17 @@ export default function IndexPage() {
 
   /** 首页配置（轮播图 / 宫格导航 / 促销卡片） */
   const [config, setConfig] = useState<HomeConfig>({ banners: [], navs: [], promos: [] })
-  /** 推荐商品 */
-  const [products, setProducts] = useState<Product[]>([])
+  /** 特价推荐商品（后台「客户端配置 → 特价推荐」标记，价格为登录门店的等级价） */
+  const [specials, setSpecials] = useState<Product[]>([])
+  /** 特价推荐分页 */
+  const [specialPage, setSpecialPage] = useState(1)
+  const [specialHasMore, setSpecialHasMore] = useState(false)
+  /** 加载更多中（首屏重置不展示，避免已渲染列表下方闪烁） */
+  const [specialLoading, setSpecialLoading] = useState(false)
+  /** 特价推荐请求序号（返回 tab 重置与上拉加载并发时，仅采用最后一次响应） */
+  const specialSeqRef = useRef(0)
+  /** 是否有「加载更多」请求进行中 */
+  const specialLoadingRef = useRef(false)
   /** 搜索框输入 */
   const [keyword, setKeyword] = useState('')
 
@@ -54,7 +67,13 @@ export default function IndexPage() {
 
   useDidShow(() => {
     loadHomeConfig()
-    loadRecommend()
+    loadSpecials(1, true)
+  })
+
+  /** 上拉加载更多特价推荐 */
+  useReachBottom(() => {
+    if (!specialHasMore) return
+    loadSpecials(specialPage + 1, false)
   })
 
   /** 首页配置聚合数据（响应附带悬浮球汇总） */
@@ -69,15 +88,37 @@ export default function IndexPage() {
     }
   }, [setSummary])
 
-  /** 推荐商品 */
-  const loadRecommend = useCallback(async () => {
-    try {
-      const res = await getProductListApi({ page: 1, pageSize: 10 })
-      setProducts(res.data.data)
-    } catch {
-      // 错误已由 request 层 toast
-    }
-  }, [])
+  /**
+   * 特价推荐商品（reset 时回到第一页整体替换）。
+   * 行结构与 /mini/product/list 一致；响应附带悬浮球汇总
+   */
+  const loadSpecials = useCallback(
+    async (pageNum: number, reset: boolean) => {
+      if (!reset && specialLoadingRef.current) return
+      const seq = ++specialSeqRef.current
+      specialLoadingRef.current = true
+      if (!reset) setSpecialLoading(true)
+      try {
+        const res = await getSpecialListApi({ page: pageNum, pageSize: SPECIAL_PAGE_SIZE })
+        if (seq !== specialSeqRef.current) return // 已有更新的请求，丢弃本次响应
+        const { data, total, cart } = res.data
+        setSpecials(prev => (reset ? data : [...prev, ...data]))
+        setSpecialPage(pageNum)
+        setSpecialHasMore(pageNum * SPECIAL_PAGE_SIZE < total)
+        // 列表响应附带悬浮球汇总（旧版本后端可能未返回）
+        const summary = normalizeSpecialCart(cart)
+        if (summary) setSummary(summary)
+      } catch {
+        // 错误已由 request 层 toast
+      } finally {
+        if (seq === specialSeqRef.current) {
+          specialLoadingRef.current = false
+          setSpecialLoading(false)
+        }
+      }
+    },
+    [setSummary],
+  )
 
   /**
    * 后台配置的 link 统一跳转：
@@ -115,9 +156,9 @@ export default function IndexPage() {
     goProduct(keyword.trim())
   }, [goProduct, keyword])
 
-  /** 行内加减购确认后回写推荐商品项的购物车字段 */
+  /** 行内加减购确认后回写特价商品项的购物车字段 */
   const handleRowSync = useCallback((productId: number, patch: ProductCartPatch) => {
-    setProducts(prev => prev.map(p => (p.id === productId ? { ...p, ...patch } : p)))
+    setSpecials(prev => prev.map(p => (p.id === productId ? { ...p, ...patch } : p)))
   }, [])
 
   /** 快捷加购（用返回的购物车行回写，卡片随即展示加减器） */
@@ -135,6 +176,16 @@ export default function IndexPage() {
     [addItem, handleRowSync],
   )
 
+  /** 无价格时点击：未登录引导登录，已登录但未设等级价提示原因 */
+  const handlePriceGuide = useCallback((e: any) => {
+    e.stopPropagation()
+    if (getToken()) {
+      Taro.showToast({ title: '该商品暂未设置等级价', icon: 'none' })
+    } else {
+      Taro.navigateTo({ url: '/pages/login/index' })
+    }
+  }, [])
+
   return (
     <View className='home-page'>
       {/* ========== 自定义顶部导航栏 ========== */}
@@ -237,57 +288,75 @@ export default function IndexPage() {
         </View>
       )}
 
-      {/* ========== 推荐商品 ========== */}
+      {/* ========== 特价推荐 ========== */}
       <View className='home-recommend'>
         <View className='home-recommend__header'>
           <View className='home-recommend__title-wrap'>
             <View className='home-recommend__title-bar' />
-            <Text className='home-recommend__title'>推荐商品</Text>
+            <Text className='home-recommend__title'>特价推荐</Text>
           </View>
           <Text className='home-recommend__more' onClick={() => goProduct()}>查看更多 ›</Text>
         </View>
 
-        { products.length === 0 ? (
+        { specials.length === 0 ? (
           <View className='home-recommend__empty'>
-            <Text className='home-recommend__empty-text'>暂无商品</Text>
+            <Text className='home-recommend__empty-text'>暂无特价商品</Text>
           </View>
         ) : (
-          <View className='product-grid'>
-            {products.map(product => (
-              <View key={product.id} className='product-card' onClick={() => goDetail(product.id)}>
-                <Image
-                  className='product-card__image'
-                  src={getProductCover(product) || 'https://img.yzcdn.cn/vant/cat.jpeg'}
-                  mode='aspectFill'
-                  lazyLoad
-                />
-                <View className='product-card__info'>
-                  <Text className='product-card__name'>{product.name}</Text>
-                  <View className='product-card__spec'>
-                    {formatSpec(product.spec, product.unit)}{'  '}
-                    {product.price !== null && <>
-                      单价：{formatRetailPrice(product.price, product.spec)} {product.price_unit}
-                    </>}
-                  </View>
-                  <View className='product-card__bottom'>
-                    {product.price !== null ? (
-                      <Text className='product-card__price'>￥{product.price}</Text>
-                    ) : (
-                      <Text className='product-card__price product-card__price--none'>登陆后查看价格</Text>
-                    )}
-                    {/* 已加购展示行内加减器，否则展示快捷加购按钮 */}
-                    {Number(product.cart_quantity ?? 0) > 0 ? (
-                      <CartStepper product={product} onSync={handleRowSync} />
-                    ) : (
-                      <View className='product-card__add' onClick={e => handleQuickAdd(product, e)}>
-                        <Text className='product-card__add-icon'>＋</Text>
-                      </View>
-                    )}
+          <>
+            <View className='product-grid'>
+              {specials.map(product => (
+                <View key={product.id} className='product-card' onClick={() => goDetail(product.id)}>
+                  <Image
+                    className='product-card__image'
+                    src={getProductCover(product) || 'https://img.yzcdn.cn/vant/cat.jpeg'}
+                    mode='aspectFill'
+                    lazyLoad
+                  />
+                  <View className='product-card__info'>
+                    <Text className='product-card__name'>{product.name}</Text>
+                    <View className='product-card__spec'>
+                      {formatSpec(product.spec, product.unit)}{'  '}
+                      {product.price !== null && <>
+                        单价：{formatRetailPrice(product.price, product.spec)} {product.price_unit}
+                      </>}
+                    </View>
+                    <View className='product-card__bottom'>
+                      {product.price !== null ? (
+                        <Text className='product-card__price'>￥{product.price}</Text>
+                      ) : (
+                        <Text
+                          className='product-card__price product-card__price--none'
+                          onClick={handlePriceGuide}
+                        >
+                          登录后查看价格
+                        </Text>
+                      )}
+                      {/* 已加购展示行内加减器，否则展示快捷加购按钮 */}
+                      {Number(product.cart_quantity ?? 0) > 0 ? (
+                        <CartStepper product={product} onSync={handleRowSync} />
+                      ) : (
+                        <View className='product-card__add' onClick={e => handleQuickAdd(product, e)}>
+                          <Text className='product-card__add-icon'>＋</Text>
+                        </View>
+                      )}
+                    </View>
                   </View>
                 </View>
+              ))}
+            </View>
+            {/* 加载更多状态 */}
+            {specialLoading && (
+              <View className='home-recommend__loading'>
+                <Text className='home-recommend__loading-text'>加载中…</Text>
               </View>
-            ))}
-          </View>
+            )}
+            {!specialHasMore && specialPage > 1 && (
+              <View className='home-recommend__loading'>
+                <Text className='home-recommend__loading-text'>已加载全部特价商品</Text>
+              </View>
+            )}
+          </>
         )}
       </View>