feat: 支付页仅保留微信支付，移除余额支付

miniprogram/src/pages/comprehensive/pay/index.vue

@@ -23,24 +23,12 @@
 
     <view class="card method-card">
       <text class="card-title">支付方式</text>
-      <view
-        v-if="!isStoredValueOrder"
-        class="method-item"
-        :class="{ active: payMethod === 'balance', disabled: !canUseBalance }"
-        @tap="selectMethod('balance')"
-      >
-        <view>
-          <text class="method-title">余额支付</text>
-          <text class="method-sub">当前余额 ¥{{ balance.balance }}</text>
-        </view>
-        <text class="method-check">{{ payMethod === 'balance' ? '已选' : '' }}</text>
-      </view>
-      <view class="method-item" :class="{ active: payMethod === 'wechat' }" @tap="selectMethod('wechat')">
+      <view class="method-item active">
         <view>
           <text class="method-title">微信支付</text>
           <text class="method-sub">使用微信支付完成订单</text>
         </view>
-        <text class="method-check">{{ payMethod === 'wechat' ? '已选' : '' }}</text>
+        <text class="method-check">已选</text>
       </view>
     </view>
 
@@ -61,28 +49,19 @@
 <script setup>
 import { computed, onUnmounted, ref } from 'vue'
 import { onLoad } from '@dcloudio/uni-app'
-import { memberApi } from '@/modules/comprehensive/api/member'
 import { orderApi } from '@/modules/comprehensive/api/order'
 import { formatDateTime } from '@/modules/comprehensive/utils/date'
-import { toAmountNumber } from '@/modules/comprehensive/utils/money'
 
 const orderId = ref('')
 const order = ref(null)
-const balance = ref({ balance: '0.00' })
-const payMethod = ref('balance')
 const isSubmitting = ref(false)
 const nowTimestamp = ref(Date.now())
 let countdownTimer = null
 
-const isStoredValueOrder = computed(() => order.value?.business_type === 'stored_value')
-const canUseBalance = computed(() => {
-  if (isStoredValueOrder.value) return false
-  return toAmountNumber(balance.value.balance) >= toAmountNumber(order.value?.amount)
-})
-const canPay = computed(() => order.value?.status === 'pending_pay' && (payMethod.value !== 'balance' || canUseBalance.value))
+const canPay = computed(() => order.value?.status === 'pending_pay')
 const payButtonText = computed(() => {
   if (order.value?.status !== 'pending_pay') return '订单不可支付'
-  return payMethod.value === 'balance' ? '余额支付' : '微信支付'
+  return '微信支付'
 })
 const paymentRemainingSeconds = computed(() => {
   if (!order.value?.expire_at) return 0
@@ -107,17 +86,7 @@ onUnmounted(() => {
 })
 
 const loadPage = async () => {
-  const [orderData, balanceData] = await Promise.all([
-    orderApi.getOrderDetail(orderId.value),
-    memberApi.getBalance()
-  ])
-  order.value = orderData
-  balance.value = balanceData
-  if (isStoredValueOrder.value) {
-    payMethod.value = 'wechat'
-  } else if (!canUseBalance.value) {
-    payMethod.value = 'wechat'
-  }
+  order.value = await orderApi.getOrderDetail(orderId.value)
   updateCountdownTimer()
 }
 
@@ -139,33 +108,13 @@ const stopCountdown = () => {
 
 const padTime = (value) => String(value).padStart(2, '0')
 
-const selectMethod = (method) => {
-  if (method === 'balance') {
-    if (isStoredValueOrder.value) {
-      uni.showToast({ title: '储值卡订单仅支持微信支付', icon: 'none' })
-      return
-    }
-    if (!canUseBalance.value) {
-      uni.showToast({ title: '余额不足', icon: 'none' })
-      return
-    }
-  }
-  payMethod.value = method
-}
-
 const pay = async () => {
   if (!canPay.value || isSubmitting.value) return
-  if (isStoredValueOrder.value && payMethod.value === 'balance') return
   isSubmitting.value = true
   try {
-    if (payMethod.value === 'balance') {
-      await orderApi.payOrderByBalance(order.value.id)
-      uni.showToast({ title: '支付成功', icon: 'success' })
-    } else {
     const paymentData = await orderApi.payOrderByWechat(order.value.id)
     await requestWechatPayment(paymentData.wechat)
     uni.showToast({ title: '支付已提交', icon: 'success' })
-    }
     await loadPage()
     setTimeout(() => {
       uni.redirectTo({ url: `/pages/comprehensive/orders/detail?id=${order.value.id}` })
@@ -269,10 +218,6 @@ const requestWechatPayment = (wechatPayload) => new Promise((resolve, reject) =>
   color: $color-primary;
 }
 
-.method-item.disabled {
-  opacity: 0.45;
-}
-
 .method-title,
 .method-sub {
   display: block;