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- 后端 CartHandler.Add 新增购物资格检查 - 后端新增库存检查和最大购买数量检查 - 前端商品详情页添加资格不足提示和视觉反馈 - 显示用户当前资格和所需资格总数 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
253 lines
7.6 KiB
Vue
253 lines
7.6 KiB
Vue
<template>
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<div class="product-detail-page" v-if="product">
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<BackNav />
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<div class="detail-card">
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<el-row :gutter="32">
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<el-col :span="12">
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<div class="product-images">
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<el-carousel v-if="productImages.length > 1" height="400px" :autoplay="false" indicator-position="outside">
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<el-carousel-item v-for="(img, index) in productImages" :key="index">
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<el-image :src="img" fit="contain" class="carousel-image" :preview-src-list="productImages" :initial-index="index">
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<template #error>
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<div class="image-placeholder">
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<el-icon size="80"><Goods /></el-icon>
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</div>
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</template>
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</el-image>
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</el-carousel-item>
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</el-carousel>
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<el-image v-else-if="productImages.length === 1" :src="productImages[0]" fit="contain" class="single-image" :preview-src-list="productImages">
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<template #error>
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<div class="image-placeholder">
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<el-icon size="80"><Goods /></el-icon>
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</div>
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</template>
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</el-image>
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<div v-else class="image-placeholder">
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<el-icon size="80"><Goods /></el-icon>
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</div>
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</div>
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</el-col>
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<el-col :span="12">
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<h1>{{ product.name }}</h1>
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<p class="price">¥{{ product.price }}</p>
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<p class="description">{{ product.description }}</p>
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<div class="meta">
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<el-tag v-if="product.require_credit" :type="hasEnoughCredit() ? 'warning' : 'danger'">
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{{ $t('product.requireCredit') }}: {{ product.credit_cost * quantity }}
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<span v-if="!hasEnoughCredit()"> (资格不足)</span>
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</el-tag>
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<el-tag v-if="product.credit_reward > 0" type="success">+{{ product.credit_reward * quantity }} {{ $t('product.creditReward') }}</el-tag>
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</div>
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<div class="user-credits" v-if="product.require_credit">
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<span class="credits-label">当前资格：</span>
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<span class="credits-value" :class="{ 'insufficient': !hasEnoughCredit() }">{{ userCredits }}</span>
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</div>
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<div class="custom-fields" v-if="product.custom_fields?.length">
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<h4>{{ $t('product.customFields') }}</h4>
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<div v-for="f in product.custom_fields" :key="f.id" class="field-item">
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<span class="field-name">{{ f.field_name }}:</span>
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<span>{{ f.field_value }}</span>
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</div>
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</div>
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<div class="purchase-section">
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<el-input-number v-model="quantity" :min="product.min_purchase || 1" :max="product.max_purchase || 999" />
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<el-button type="primary" size="large" @click="addToCart">{{ $t('product.addToCart') }}</el-button>
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<el-button type="success" size="large" @click="buyNow">{{ $t('product.buyNow') }}</el-button>
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</div>
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</el-col>
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</el-row>
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</div>
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</div>
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</template>
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<script setup lang="ts">
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import { ref, computed, onMounted } from 'vue'
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import { useRoute, useRouter } from 'vue-router'
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import { ElMessage } from 'element-plus'
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import { Goods } from '@element-plus/icons-vue'
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import { productApi, userApi } from '../../api'
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import { useCartStore } from '../../store/cart'
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import { useI18n } from 'vue-i18n'
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import { getImageUrl } from '../../utils/image'
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import BackNav from '../../components/BackNav.vue'
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const route = useRoute()
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const router = useRouter()
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const { t } = useI18n()
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const cartStore = useCartStore()
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const product = ref<any>(null)
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const quantity = ref(1)
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const userCredits = ref(0)
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const productImages = computed(() => {
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if (!product.value?.images) return []
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return product.value.images.split(',').map((s: string) => s.trim()).filter(Boolean).map((url: string) => getImageUrl(url))
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})
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// 检查用户是否有足够资格购买
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function hasEnoughCredit(): boolean {
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if (!product.value || !product.value.require_credit) return true
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const totalCost = product.value.credit_cost * quantity.value
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return userCredits.value >= totalCost
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}
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// 获取用户资格信息
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async function fetchUserCredits() {
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try {
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const res: any = await userApi.getProfile()
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userCredits.value = res.data?.purchase_credits || 0
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} catch {}
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}
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onMounted(async () => {
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const res: any = await productApi.getById(Number(route.params.id))
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product.value = res.data
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// 设置默认数量为最小购买量
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if (product.value?.min_purchase && product.value.min_purchase > 1) {
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quantity.value = product.value.min_purchase
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}
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// 获取用户资格信息
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await fetchUserCredits()
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})
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async function addToCart() {
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// 检查购物资格
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if (!hasEnoughCredit()) {
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const totalCost = product.value.credit_cost * quantity.value
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ElMessage.warning(`资格不足！需要 ${totalCost} 资格，您当前只有 ${userCredits.value} 资格`)
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return
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}
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try {
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await cartStore.addItem(product.value.id, quantity.value)
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ElMessage.success(t('product.addToCart') + ' ✓')
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} catch (err: any) {
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// 处理后端返回的错误
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const errorMsg = err.response?.data?.error || '添加购物车失败'
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ElMessage.error(errorMsg)
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}
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}
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function buyNow() {
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addToCart().then(() => {
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// 只有成功添加后才跳转
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router.push('/cart')
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})
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}
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</script>
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<style scoped lang="scss">
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.product-detail-page { padding: 0; }
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.detail-card { background: #2d2d44; border: 1px solid rgba(255, 255, 255, 0.06); border-radius: 12px; padding: 32px; }
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.product-images {
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height: 400px;
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background: rgba(255, 255, 255, 0.04);
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border-radius: 12px;
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overflow: hidden;
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.carousel-image, .single-image {
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width: 100%;
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height: 400px;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.image-placeholder {
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width: 100%;
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height: 400px;
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display: flex;
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align-items: center;
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justify-content: center;
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background: rgba(255, 255, 255, 0.04);
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color: rgba(255, 255, 255, 0.2);
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}
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}
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h1 { font-size: 28px; color: #fff; margin-bottom: 16px; }
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.price { font-size: 32px; font-weight: 700; color: #4e6ef2; margin-bottom: 16px; }
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.description { color: rgba(255, 255, 255, 0.5); margin-bottom: 16px; line-height: 1.6; }
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.meta { display: flex; gap: 8px; margin-bottom: 16px; }
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.user-credits {
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display: flex;
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align-items: center;
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gap: 8px;
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margin-bottom: 16px;
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padding: 8px 12px;
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background: rgba(255, 255, 255, 0.04);
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border-radius: 6px;
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.credits-label {
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color: rgba(255, 255, 255, 0.6);
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font-size: 14px;
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}
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.credits-value {
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color: #10b981;
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font-size: 16px;
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font-weight: 600;
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&.insufficient {
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color: #f56c6c;
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}
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}
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}
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.custom-fields { margin-bottom: 24px; h4 { color: #fff; margin-bottom: 8px; } .field-item { color: rgba(255, 255, 255, 0.7); margin-bottom: 4px; .field-name { color: rgba(255, 255, 255, 0.5); margin-right: 8px; } } }
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.purchase-section { display: flex; gap: 12px; align-items: center; margin-top: 24px; }
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@media (max-width: 768px) {
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.detail-card {
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padding: 16px;
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}
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.el-row {
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flex-direction: column;
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}
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.el-col {
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max-width: 100%;
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flex: 0 0 100%;
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}
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.product-images {
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height: 300px;
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}
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.carousel-image, .single-image {
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height: 300px;
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}
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.image-placeholder {
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height: 300px;
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}
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h1 {
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font-size: 18px;
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margin-top: 12px;
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margin-bottom: 12px;
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line-height: 1.3;
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}
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.price {
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font-size: 20px;
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margin-bottom: 12px;
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}
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.description {
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font-size: 14px;
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}
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.purchase-section {
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flex-wrap: wrap;
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:deep(.el-input-number) {
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width: 100%;
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}
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:deep(.el-button) {
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flex: 1;
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}
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}
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}
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</style>
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