购物车悬浮加减

This commit is contained in:
liu
2026-08-27 18:08:14 +08:00
parent 78c787d207
commit 260d8086bf
16 changed files with 445 additions and 35 deletions
+57
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@@ -0,0 +1,57 @@
// 购物车悬浮球:右下角,底部避让自定义 tabBar(110rpx + 安全区)
.cart-ball {
position: fixed;
right: 24rpx;
bottom: calc(150rpx + env(safe-area-inset-bottom));
z-index: 998;
display: flex;
align-items: center;
height: 88rpx;
padding: 0 32rpx 0 8rpx;
background: #fff;
border-radius: 999rpx;
box-shadow: 0 8rpx 24rpx rgba(0, 0, 0, 0.15);
box-sizing: border-box;
&__icon {
position: relative;
width: 72rpx;
height: 72rpx;
border-radius: 50%;
background: linear-gradient(135deg, #ee0a24, #ff6034);
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
}
&__badge {
position: absolute;
top: -8rpx;
right: -16rpx;
min-width: 32rpx;
height: 32rpx;
padding: 0 8rpx;
box-sizing: border-box;
background: #fff;
border: 2rpx solid #ee0a24;
border-radius: 999rpx;
display: flex;
align-items: center;
justify-content: center;
}
&__badge-text {
color: #ee0a24;
font-size: 20rpx;
font-weight: 600;
line-height: 1;
}
&__amount {
margin-left: 16rpx;
color: #ee0a24;
font-size: 32rpx;
font-weight: 700;
}
}
+38
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@@ -0,0 +1,38 @@
import { useCallback } from 'react'
import Taro from '@tarojs/taro'
import { View, Text } from '@tarojs/components'
import { Icon } from '@antmjs/vantui'
import useAuthStore from '@/stores/auth/useAuthStore'
import useCartStore from '@/stores/cart/useCartStore'
import { formatQuantity } from '@/utils/format'
import './index.less'
/**
* 购物车悬浮球(首页 / 商品列表页右下角,位于自定义 tabBar 上方):
* 展示可购总数量徽标与总金额,点击跳转购物车页;
* 未登录或购物车为空(total_count = 0)时隐藏
*/
export default function CartBall() {
const token = useAuthStore(s => s.token)
const totalCount = useCartStore(s => s.totalCount)
const totalQuantity = useCartStore(s => s.totalQuantity)
const totalAmount = useCartStore(s => s.totalAmount)
const goCart = useCallback(() => {
Taro.switchTab({ url: '/pages/cart/index' })
}, [])
if (!token || totalCount <= 0) return null
return (
<View className='cart-ball' onClick={goCart}>
<View className='cart-ball__icon'>
<Icon name='shopping-cart-o' size='40rpx' color='#ffffff' />
<View className='cart-ball__badge'>
<Text className='cart-ball__badge-text'>{formatQuantity(totalQuantity)}</Text>
</View>
</View>
<Text className='cart-ball__amount'>¥{totalAmount}</Text>
</View>
)
}
+42
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@@ -0,0 +1,42 @@
.cart-stepper {
display: flex;
align-items: center;
flex-shrink: 0;
&__btn {
width: 52rpx;
height: 52rpx;
border-radius: 50%;
box-sizing: border-box;
display: flex;
align-items: center;
justify-content: center;
background: #fff;
border: 2rpx solid #ee0a24;
&--plus {
background: linear-gradient(135deg, #ee0a24, #ff6034);
border: none;
}
}
&__btn-icon {
font-size: 30rpx;
line-height: 1;
color: #ee0a24;
}
&__btn--plus &__btn-icon {
color: #fff;
}
&__qty {
min-width: 64rpx;
padding: 0 4rpx;
box-sizing: border-box;
text-align: center;
font-size: 28rpx;
color: #323233;
font-weight: 500;
}
}
+121
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@@ -0,0 +1,121 @@
import { useCallback, useEffect, useRef, useState } from 'react'
import { View, Text } from '@tarojs/components'
import { addCartApi, deleteCartItemApi, updateCartItemApi } from '@/services/cart'
import useCartStore from '@/stores/cart/useCartStore'
import { formatQuantity } from '@/utils/format'
import type { Product, ProductCartPatch } from '@/types/product'
import './index.less'
/** 加减防抖间隔(ms):连续点击合并为一次提交 */
const DEBOUNCE_MS = 400
interface CartStepperProps {
/** 商品行(使用 id / price / cart_id / cart_quantity */
product: Product
/** 服务端确认后的行数据回写(父组件更新列表项的 cart_id/cart_quantity */
onSync: (productId: number, patch: ProductCartPatch) => void
}
/**
* 商品行内购物车加减(商品列表 / 首页推荐共用,仅在 cart_quantity > 0 时由父组件渲染):
* - 点击即时更新本地数量与悬浮球(乐观展示),防抖后提交服务端
* - 不在购物车(cart_id=0)→ POST /mini/cart 合并加购;已存在 → PUT 绝对数量;减到 0 → DELETE
* (数量为 0 不能调 PUT,后端校验数量必须 > 0)
* - 同一商品的提交串行执行,避免并发导致数量错乱
* - 失败回滚本地数量(请求层已 toast),并立即整体校准悬浮球
*/
export default function CartStepper({ product, onSync }: CartStepperProps) {
const applyDelta = useCartStore(s => s.applyDelta)
const fetchSummary = useCartStore(s => s.fetchSummary)
/** 本地编辑数量(乐观值;null = 展示服务端确认值) */
const [draft, setDraft] = useState<number | null>(null)
/** 最新待提交的目标数量 */
const targetRef = useRef<number | null>(null)
const timerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
/** 提交串行队列 */
const chainRef = useRef<Promise<void>>(Promise.resolve())
/** 最新商品行快照(供防抖/串行回调读取服务端确认值,避免闭包过期) */
const productRef = useRef(product)
productRef.current = product
/** 卸载时清理防抖定时器 */
useEffect(
() => () => {
if (timerRef.current) clearTimeout(timerRef.current)
},
[],
)
/** 提交目标数量(串行执行;与服务器一致时跳过) */
const runSubmit = useCallback(
async (target: number) => {
const p = productRef.current
const confirmed = Number(p.cart_quantity ?? 0)
if (target === confirmed) return
try {
if (target <= 0) {
if (p.cart_id) await deleteCartItemApi(p.cart_id)
onSync(p.id, { cart_id: 0, cart_quantity: '0.00' })
} else if (p.cart_id) {
const res = await updateCartItemApi(p.cart_id, target)
onSync(p.id, { cart_id: p.cart_id, cart_quantity: res.data.quantity })
} else {
// 未加购过:POST 合并加购,用返回的行 id 回写本地 cart_id
const res = await addCartApi({ product_id: p.id, quantity: target })
onSync(p.id, { cart_id: res.data.id, cart_quantity: res.data.quantity })
}
// 提交期间用户未再改动 → 本地数量落回服务端确认值(onSync 已回写,展示不变)
setDraft(prev => (prev === target ? null : prev))
} catch {
// 失败(超上限等,请求层已 toast):放弃后续目标,回滚本地展示并校准悬浮球
targetRef.current = null
setDraft(null)
fetchSummary().catch(() => {})
}
},
[onSync, fetchSummary],
)
/** 点击加/减:乐观更新本地数量与悬浮球,防抖后入队提交 */
const handleTap = useCallback(
(delta: 1 | -1) => {
const before = draft ?? Number(productRef.current.cart_quantity ?? 0)
const after = Math.round(Math.max(0, before + delta) * 100) / 100
if (after === before) return
setDraft(after)
targetRef.current = after
// 悬浮球乐观增减(金额按行内售价估算,防抖结束后由服务端汇总校准);
// 数量跨过 0 时同步增减商品种数
const price = Number(productRef.current.price ?? 0)
applyDelta({
quantity: delta,
amount: Math.round(price * delta * 100) / 100,
count: before === 0 && after > 0 ? 1 : before > 0 && after === 0 ? -1 : 0,
})
if (timerRef.current) clearTimeout(timerRef.current)
timerRef.current = setTimeout(() => {
timerRef.current = null
const target = targetRef.current
if (target === null) return
targetRef.current = null
chainRef.current = chainRef.current.then(() => runSubmit(target))
}, DEBOUNCE_MS)
},
[draft, applyDelta, runSubmit],
)
const shown = draft ?? Number(product.cart_quantity ?? 0)
return (
<View className='cart-stepper' onClick={e => e.stopPropagation()}>
<View className='cart-stepper__btn' onClick={() => handleTap(-1)}>
<Text className='cart-stepper__btn-icon'></Text>
</View>
<Text className='cart-stepper__qty'>{formatQuantity(shown)}</Text>
<View className='cart-stepper__btn cart-stepper__btn--plus' onClick={() => handleTap(1)}>
<Text className='cart-stepper__btn-icon'></Text>
</View>
</View>
)
}
+2 -1
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@@ -1,7 +1,8 @@
.home-page { .home-page {
min-height: 100vh; min-height: 100vh;
background: #f7f8fa; background: #f7f8fa;
padding-bottom: calc(140rpx + env(safe-area-inset-bottom)); // 底部预留自定义 tabBar(110rpx + 安全区)+ 购物车悬浮球空间,避免内容被遮挡
padding-bottom: calc(250rpx + env(safe-area-inset-bottom));
box-sizing: border-box; box-sizing: border-box;
// ===== 自定义顶部导航栏 ===== // ===== 自定义顶部导航栏 =====
+28 -9
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@@ -8,8 +8,10 @@ import { getHomeConfigApi } from '@/services/home'
import type { HomeConfig } from '@/services/home' import type { HomeConfig } from '@/services/home'
import { getProductListApi } from '@/services/product' import { getProductListApi } from '@/services/product'
import { getProductCover } from '@/types/product' import { getProductCover } from '@/types/product'
import type { Product } from '@/types/product' import type { Product, ProductCartPatch } from '@/types/product'
import PriceText from '@/components/PriceText' import PriceText from '@/components/PriceText'
import CartBall from '@/components/CartBall'
import CartStepper from '@/components/CartStepper'
import { formatSpec } from '@/utils/format' import { formatSpec } from '@/utils/format'
import './index.less' import './index.less'
@@ -41,6 +43,7 @@ function getStatusBarHeight(): number {
export default function IndexPage() { export default function IndexPage() {
const addItem = useCartStore(s => s.addItem) const addItem = useCartStore(s => s.addItem)
const setSummary = useCartStore(s => s.setSummary)
/** 首页配置(轮播图 / 宫格导航 / 促销卡片) */ /** 首页配置(轮播图 / 宫格导航 / 促销卡片) */
const [config, setConfig] = useState<HomeConfig>({ banners: [], navs: [], promos: [] }) const [config, setConfig] = useState<HomeConfig>({ banners: [], navs: [], promos: [] })
@@ -56,15 +59,17 @@ export default function IndexPage() {
loadRecommend() loadRecommend()
}) })
/** 首页配置聚合数据 */ /** 首页配置聚合数据(响应附带悬浮球汇总) */
const loadHomeConfig = useCallback(async () => { const loadHomeConfig = useCallback(async () => {
try { try {
const res = await getHomeConfigApi() const res = await getHomeConfigApi()
setConfig(res.data) setConfig(res.data)
// 旧版本后端可能未返回 cart 块
if (res.data.cart) setSummary(res.data.cart)
} catch { } catch {
// 错误已由 request 层 toast // 错误已由 request 层 toast
} }
}, []) }, [setSummary])
/** 推荐商品 */ /** 推荐商品 */
const loadRecommend = useCallback(async () => { const loadRecommend = useCallback(async () => {
@@ -112,18 +117,24 @@ export default function IndexPage() {
goProduct(keyword.trim()) goProduct(keyword.trim())
}, [goProduct, keyword]) }, [goProduct, keyword])
/** 快捷加购 */ /** 行内加减购确认后回写推荐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)))
}, [])
/** 快捷加购(用返回的购物车行回写,卡片随即展示加减器) */
const handleQuickAdd = useCallback( const handleQuickAdd = useCallback(
async (product: Product, e: any) => { async (product: Product, e: any) => {
e.stopPropagation() e.stopPropagation()
try { try {
await addItem(product.id, 1) const res = await addItem(product.id, 1)
handleRowSync(product.id, { cart_id: res.id, cart_quantity: res.quantity })
Taro.showToast({ title: '已加入购物车', icon: 'success' }) Taro.showToast({ title: '已加入购物车', icon: 'success' })
} catch { } catch {
// 错误(未设等级价等)已由 request 层 toast // 错误(未设等级价等)已由 request 层 toast
} }
}, },
[addItem], [addItem, handleRowSync],
) )
return ( return (
@@ -261,9 +272,14 @@ export default function IndexPage() {
) : ( ) : (
<Text className='product-card__price product-card__price--none'></Text> <Text className='product-card__price product-card__price--none'></Text>
)} )}
<View className='product-card__add' onClick={e => handleQuickAdd(product, e)}> {/* 已加购展示行内加减器,否则展示快捷加购按钮 */}
<Text className='product-card__add-icon'></Text> {Number(product.cart_quantity ?? 0) > 0 ? (
</View> <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>
</View> </View>
@@ -271,6 +287,9 @@ export default function IndexPage() {
</View> </View>
)} )}
</View> </View>
{/* ========== 购物车悬浮球 ========== */}
<CartBall />
</View> </View>
) )
} }
+2 -1
View File
@@ -96,7 +96,8 @@
flex: 1; flex: 1;
min-width: 0; min-width: 0;
height: 100%; height: 100%;
padding: 20rpx 20rpx 40rpx; // 底部留白避免最后一行被购物车悬浮球遮挡
padding: 20rpx 20rpx 20rpx;
box-sizing: border-box; box-sizing: border-box;
} }
+35 -15
View File
@@ -6,8 +6,10 @@ import useCartStore from '@/stores/cart/useCartStore'
import { getCategoriesApi, getProductListApi } from '@/services/product' import { getCategoriesApi, getProductListApi } from '@/services/product'
import type { ProductListParams } from '@/services/product' import type { ProductListParams } from '@/services/product'
import { getProductCover } from '@/types/product' import { getProductCover } from '@/types/product'
import type { Category, Product } from '@/types/product' import type { Category, Product, ProductCartPatch } from '@/types/product'
import PriceText from '@/components/PriceText' import PriceText from '@/components/PriceText'
import CartBall from '@/components/CartBall'
import CartStepper from '@/components/CartStepper'
import { formatSpec } from '@/utils/format' import { formatSpec } from '@/utils/format'
import './index.less' import './index.less'
@@ -18,6 +20,7 @@ const PENDING_KEYWORD_KEY = 'product_keyword'
export default function ProductPage() { export default function ProductPage() {
const addItem = useCartStore(s => s.addItem) const addItem = useCartStore(s => s.addItem)
const setSummary = useCartStore(s => s.setSummary)
/** 分类树 */ /** 分类树 */
const [categories, setCategories] = useState<Category[]>([]) const [categories, setCategories] = useState<Category[]>([])
@@ -70,10 +73,12 @@ export default function ProductPage() {
if (keyword) params.keyword = keyword if (keyword) params.keyword = keyword
const res = await getProductListApi(params) const res = await getProductListApi(params)
if (seq !== reqSeqRef.current) return // 已有更新的请求,丢弃本次响应 if (seq !== reqSeqRef.current) return // 已有更新的请求,丢弃本次响应
const { data, total: totalCount } = res.data const { data, total: totalCount, cart } = res.data
setProducts(prev => (reset ? data : [...prev, ...data])) setProducts(prev => (reset ? data : [...prev, ...data]))
setPage(pageNum) setPage(pageNum)
setFinished(pageNum * PAGE_SIZE >= totalCount) setFinished(pageNum * PAGE_SIZE >= totalCount)
// 列表响应附带悬浮球汇总(旧版本后端可能未返回)
if (cart) setSummary(cart)
} catch { } catch {
// 错误已由 request 层 toast // 错误已由 request 层 toast
} finally { } finally {
@@ -83,7 +88,7 @@ export default function ProductPage() {
} }
} }
}, },
[effectiveCategoryId, searchKey], [effectiveCategoryId, searchKey, setSummary],
) )
/** 分类/搜索词变化时重新加载第一页(首屏由 useDidShow 触发,跳过首次执行) */ /** 分类/搜索词变化时重新加载第一页(首屏由 useDidShow 触发,跳过首次执行) */
@@ -193,17 +198,23 @@ export default function ProductPage() {
setShowPopup(true) setShowPopup(true)
}, []) }, [])
/** 行内加减购确认后回写列表项的购物车字段 */
const handleRowSync = useCallback((productId: number, patch: ProductCartPatch) => {
setProducts(prev => prev.map(p => (p.id === productId ? { ...p, ...patch } : p)))
}, [])
/** 跳转商品详情 */ /** 跳转商品详情 */
const goDetail = useCallback((id: number) => { const goDetail = useCallback((id: number) => {
Taro.navigateTo({ url: `/pages/product-detail/index?id=${id}` }) Taro.navigateTo({ url: `/pages/product-detail/index?id=${id}` })
}, []) }, [])
/** 确认加购 */ /** 确认加购(用返回的购物车行回写列表项,行内随即展示加减器) */
const handleConfirmAdd = useCallback(async () => { const handleConfirmAdd = useCallback(async () => {
if (!current || addingRef.current) return if (!current || addingRef.current) return
addingRef.current = true addingRef.current = true
try { try {
await addItem(current.id, qty) const res = await addItem(current.id, qty)
handleRowSync(current.id, { cart_id: res.id, cart_quantity: res.quantity })
Taro.showToast({ title: '已加入购物车', icon: 'success' }) Taro.showToast({ title: '已加入购物车', icon: 'success' })
setShowPopup(false) setShowPopup(false)
} catch { } catch {
@@ -211,7 +222,7 @@ export default function ProductPage() {
} finally { } finally {
addingRef.current = false addingRef.current = false
} }
}, [current, qty, addItem]) }, [current, qty, addItem, handleRowSync])
return ( return (
<View className='product-page'> <View className='product-page'>
@@ -303,15 +314,20 @@ export default function ProductPage() {
) : ( ) : (
<Text className='product-item__price product-item__price--none'></Text> <Text className='product-item__price product-item__price--none'></Text>
)} )}
<View {/* 已加购展示行内加减器,否则展示加购按钮(点击开弹层选数量) */}
className='product-item__add' {Number(product.cart_quantity ?? 0) > 0 ? (
onClick={e => { <CartStepper product={product} onSync={handleRowSync} />
e.stopPropagation() ) : (
handleAddTap(product) <View
}} className='product-item__add'
> onClick={e => {
<Text className='product-item__add-icon'></Text> e.stopPropagation()
</View> handleAddTap(product)
}}
>
<Text className='product-item__add-icon'></Text>
</View>
)}
</View> </View>
</View> </View>
</View> </View>
@@ -323,6 +339,7 @@ export default function ProductPage() {
{finished && products.length > 0 && ( {finished && products.length > 0 && (
<View className='product-loading'><Text></Text></View> <View className='product-loading'><Text></Text></View>
)} )}
<View style={{ height: 68 }}></View>
</ScrollView> </ScrollView>
</View> </View>
@@ -376,6 +393,9 @@ export default function ProductPage() {
</View> </View>
)} )}
</Popup> </Popup>
{/* ========== 购物车悬浮球 ========== */}
<CartBall />
</View> </View>
) )
} }
+6 -1
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@@ -1,5 +1,5 @@
import { del, get, post, put } from '@/utils/request' import { del, get, post, put } from '@/utils/request'
import type { CartData } from '@/types/cart' import type { CartData, CartSummary } from '@/types/cart'
/** 加购 / 改数量返回 */ /** 加购 / 改数量返回 */
export interface CartMutationResult { export interface CartMutationResult {
@@ -17,6 +17,11 @@ export function getCartApi() {
return get<CartData>('/mini/cart') return get<CartData>('/mini/cart')
} }
/** 轻量汇总(悬浮球单独刷新用;必须登录,未登录 401):GET /mini/cart/summary */
export function getCartSummaryApi() {
return get<CartSummary>('/mini/cart/summary')
}
/** 修改数量:PUT /mini/cart/{id} */ /** 修改数量:PUT /mini/cart/{id} */
export function updateCartItemApi(id: number, quantity: number) { export function updateCartItemApi(id: number, quantity: number) {
return put<CartMutationResult>(`/mini/cart/${id}`, { quantity }) return put<CartMutationResult>(`/mini/cart/${id}`, { quantity })
+3
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@@ -1,4 +1,5 @@
import { get } from '@/utils/request' import { get } from '@/utils/request'
import type { CartSummary } from '@/types/cart'
/** 首页轮播图项 */ /** 首页轮播图项 */
export interface HomeBanner { export interface HomeBanner {
@@ -36,6 +37,8 @@ export interface HomeConfig {
banners: HomeBanner[] banners: HomeBanner[]
navs: HomeNav[] navs: HomeNav[]
promos: HomePromo[] promos: HomePromo[]
/** 购物车悬浮球汇总(未登录返回零值结构;旧版本后端可能未返回,调用方判空) */
cart?: CartSummary
} }
/** 首页配置(轮播图 + 宫格导航 + 促销卡片):GET /mini/home */ /** 首页配置(轮播图 + 宫格导航 + 促销卡片):GET /mini/home */
+9 -2
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@@ -1,5 +1,6 @@
import { get } from '@/utils/request' import { get } from '@/utils/request'
import type { PaginatedData } from '@/types/api' import type { PaginatedData } from '@/types/api'
import type { CartSummary } from '@/types/cart'
import type { Category, Product } from '@/types/product' import type { Category, Product } from '@/types/product'
/** 商品分类树(仅含上架商品的分类及其祖先):GET /mini/product/categories */ /** 商品分类树(仅含上架商品的分类及其祖先):GET /mini/product/categories */
@@ -17,9 +18,15 @@ export interface ProductListParams {
pageSize?: number pageSize?: number
} }
/** 商品列表(当前门店等级实际价):GET /mini/product/list */ /** 商品列表响应(分页 + 购物车悬浮球汇总) */
export interface ProductListData extends PaginatedData<Product> {
/** 购物车悬浮球汇总(未登录返回零值结构;旧版本后端可能未返回,调用方判空) */
cart?: CartSummary
}
/** 商品列表(当前门店等级实际价 + 行内购物车字段):GET /mini/product/list */
export function getProductListApi(params: ProductListParams = {}) { export function getProductListApi(params: ProductListParams = {}) {
return get<PaginatedData<Product>>('/mini/product/list', { data: params }) return get<ProductListData>('/mini/product/list', { data: params })
} }
/** 商品详情(免登录;未登录/未绑店/未设等级 price=null;下架或不存在业务报错):GET /mini/product/{id} */ /** 商品详情(免登录;未登录/未绑店/未设等级 price=null;下架或不存在业务报错):GET /mini/product/{id} */
+66 -4
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@@ -5,13 +5,26 @@ import {
clearCartApi, clearCartApi,
deleteCartItemApi, deleteCartItemApi,
getCartApi, getCartApi,
getCartSummaryApi,
updateCartItemApi, updateCartItemApi,
} from '@/services/cart' } from '@/services/cart'
import type { CartItem } from '@/types/cart' import type { CartMutationResult } from '@/services/cart'
import { getToken } from '@/utils/request'
import type { CartItem, CartSummary } from '@/types/cart'
/** 存储 key */ /** 存储 key */
const STORAGE_KEY = 'cart_data' const STORAGE_KEY = 'cart_data'
/** 汇总请求序号(并发时仅采用最后一次响应) */
let summarySeq = 0
/** 汇总防抖校准定时器(列表加减停止 800ms 后整体拉取一次,以服务端为准) */
let summaryTimer: ReturnType<typeof setTimeout> | null = null
/** 数值 → 2 位小数字符串(与服务端金额/数量口径一致) */
function to2(n: number): string {
return (Math.round(n * 100) / 100).toFixed(2)
}
/** 持久化的购物车快照(服务端为准,此处仅作展示缓存) */ /** 持久化的购物车快照(服务端为准,此处仅作展示缓存) */
interface StoredCart { interface StoredCart {
items: CartItem[] items: CartItem[]
@@ -46,8 +59,8 @@ interface CartState {
loading: boolean loading: boolean
/** 拉取购物车(以服务端为准,金额一律服务端重算) */ /** 拉取购物车(以服务端为准,金额一律服务端重算) */
fetchCart: () => Promise<void> fetchCart: () => Promise<void>
/** 加购 */ /** 加购(返回合并后的购物车行,供列表页回写 cart_id/cart_quantity */
addItem: (productId: number, quantity: number) => Promise<void> addItem: (productId: number, quantity: number) => Promise<CartMutationResult>
/** 修改数量 */ /** 修改数量 */
updateQuantity: (id: number, quantity: number) => Promise<void> updateQuantity: (id: number, quantity: number) => Promise<void>
/** 删除单项 */ /** 删除单项 */
@@ -56,6 +69,12 @@ interface CartState {
clearCart: () => Promise<void> clearCart: () => Promise<void>
/** 下单成功后本地清空(不请求接口) */ /** 下单成功后本地清空(不请求接口) */
clearLocal: () => void clearLocal: () => void
/** 用接口附带的汇总块(首页/商品列表响应的 cart 字段)直接更新悬浮球 */
setSummary: (summary: CartSummary) => void
/** 拉取轻量汇总(需登录;未登录跳过,避免 401 跳转) */
fetchSummary: () => Promise<void>
/** 列表行内加减后本地增减悬浮球(乐观展示),并防抖调 fetchSummary 校准 */
applyDelta: (delta: { quantity: number; amount: number; count?: number }) => void
} }
/** 空的购物车快照 */ /** 空的购物车快照 */
@@ -80,6 +99,18 @@ const useCartStore = create<CartState>((set, get) => {
} }
} }
/** 写入悬浮球汇总并持久化(列表项快照保持不变) */
const applySummary = (summary: CartSummary) => {
const next = {
items: get().items,
totalCount: summary.total_count,
totalQuantity: summary.total_quantity,
totalAmount: summary.total_amount,
}
set(next)
persist(next)
}
return { return {
...EMPTY_SNAPSHOT, ...EMPTY_SNAPSHOT,
items: cached?.items ?? [], items: cached?.items ?? [],
@@ -111,8 +142,9 @@ const useCartStore = create<CartState>((set, get) => {
/** 加购:服务端校验上架与等级价,成功后重新同步 */ /** 加购:服务端校验上架与等级价,成功后重新同步 */
addItem: async (productId, quantity) => { addItem: async (productId, quantity) => {
await addCartApi({ product_id: productId, quantity }) const res = await addCartApi({ product_id: productId, quantity })
await get().fetchCart() await get().fetchCart()
return res.data
}, },
/** 修改数量 */ /** 修改数量 */
@@ -139,6 +171,36 @@ const useCartStore = create<CartState>((set, get) => {
set(EMPTY_SNAPSHOT) set(EMPTY_SNAPSHOT)
persist(EMPTY_SNAPSHOT) persist(EMPTY_SNAPSHOT)
}, },
/** 写入接口附带的汇总块(首页/商品列表) */
setSummary: (summary) => {
applySummary(summary)
},
/** 拉取轻量汇总(并发时仅采用最后一次响应) */
fetchSummary: async () => {
// 未登录无汇总(接口固定 401,会触发清理登录态),直接跳过
if (!getToken()) return
const seq = ++summarySeq
const res = await getCartSummaryApi()
if (seq !== summarySeq) return // 已有更新的请求,丢弃本次响应
applySummary(res.data)
},
/** 列表加减后的本地增减:即时反馈,防抖后以服务端汇总校准 */
applyDelta: ({ quantity, amount, count = 0 }) => {
const s = get()
applySummary({
total_count: Math.max(0, s.totalCount + count),
total_quantity: to2(Math.max(0, Number(s.totalQuantity) + quantity)),
total_amount: to2(Math.max(0, Number(s.totalAmount) + amount)),
})
if (summaryTimer) clearTimeout(summaryTimer)
summaryTimer = setTimeout(() => {
summaryTimer = null
get().fetchSummary().catch(() => {})
}, 800)
},
} }
}) })
+13
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@@ -27,3 +27,16 @@ export interface CartData {
/** 可购项总金额 */ /** 可购项总金额 */
total_amount: string total_amount: string
} }
/**
* 购物车悬浮球汇总(/mini/home、/mini/product/list 响应附带;
* GET /mini/cart/summary 同构。未登录时列表/首页返回零值结构)
*/
export interface CartSummary {
/** 商品种数(全部行数,含已下架项) */
total_count: number
/** 总数量(仅可购项,2 位小数字符串) */
total_quantity: string
/** 总金额(仅可购项,元,2 位小数字符串) */
total_amount: string
}
+10
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@@ -36,6 +36,16 @@ export interface Product {
shelf_life?: number | null shelf_life?: number | null
stock?: number | null stock?: number | null
status?: number status?: number
/** 该商品对应的购物车行 ID(不在购物车/未登录为 0;列表加减、删除时需要) */
cart_id?: number
/** 购物车中该商品数量(2 位小数字符串;不在购物车/未登录为 "0.00" */
cart_quantity?: string
}
/** 商品行购物车字段回写(行内加减购确认后更新列表项) */
export interface ProductCartPatch {
cart_id: number
cart_quantity: string
} }
/** 商品首图地址 */ /** 商品首图地址 */
+11
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@@ -78,3 +78,14 @@ export function formatRetailPrice(price?: string | number | null, spec?: string
if (!Number.isFinite(p) || !Number.isFinite(s) || s <= 0) return null if (!Number.isFinite(p) || !Number.isFinite(s) || s <= 0) return null
return String(Math.round((p / s) * 100) / 100) return String(Math.round((p / s) * 100) / 100)
} }
/**
* 数量展示:保留两位小数并去掉尾零("2.50" → "2.5""3.00" → "3"
* 用于悬浮球徽标、行内加减器等窄空间;非法值按 0 处理
*/
export function formatQuantity(value?: string | number | null): string {
if (value === null || value === undefined || value === '') return '0'
const n = Number(value)
if (!Number.isFinite(n)) return '0'
return String(Math.round(n * 100) / 100)
}
+2 -2
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@@ -10,8 +10,8 @@ const LOGIN_PATH = '/pages/login/index'
/** 默认请求超时(ms */ /** 默认请求超时(ms */
const DEFAULT_TIMEOUT = 15000 const DEFAULT_TIMEOUT = 15000
/** 接口根地址(uploadFile 等原生请求同样使用) */ /** 接口根地址(uploadFile 等原生请求同样使用) */
// export const BASE_URL = "http://localhost:8000/index.php" export const BASE_URL = "http://localhost:8000/index.php"
export const BASE_URL = "https://purchase.henanklkj.com/index.php" // export const BASE_URL = "https://purchase.henanklkj.com/index.php"
/** /**
* HTTP 状态码 → 错误提示映射 * HTTP 状态码 → 错误提示映射