feat(M08-A): 接入权益和余额下单抵扣

miniapp/pages/room/detail.js

@@ -28,6 +28,10 @@ Page({
     quote: null,
     order: null,
     payment: null,
+    couponGrantId: '',
+    packageHoldingId: '',
+    packageMinutes: '',
+    packageCreditYuan: '',
   },
   onLoad(options) {
     this.setData({
@@ -36,6 +40,18 @@ Page({
     })
   },
 
+  updateBenefitField(event) {
+    const field = event.currentTarget.dataset.field
+    if (!field) return
+    this.setData({
+      [field]: event.detail.value,
+      order: null,
+      payment: null,
+      successMessage: '',
+      errorMessage: '',
+    })
+  },
+
   setDuration(event) {
     this.setData({
       durationMinutes: Number(event.currentTarget.dataset.minutes),
@@ -68,7 +84,9 @@ Page({
       const response = await request('/orders/reserve', { method: 'POST', data: payload })
       this.setData({
         order: response.data,
-        successMessage: '时段已预占，请继续支付',
+        successMessage: response.data.benefitReservation
+          ? '时段已预占，权益已冻结，请继续支付'
+          : '时段已预占，请继续支付',
       })
     })
   },
@@ -126,6 +144,30 @@ Page({
     })
   },
 
+  async createBalancePayment() {
+    if (!this.data.order || !this.data.order.orderId) {
+      this.setData({ errorMessage: '请先预占订单' })
+      return
+    }
+    await this.withRequest(async () => {
+      const response = await request('/payments', {
+        method: 'POST',
+        data: {
+          orderId: this.data.order.orderId,
+          provider: 'BALANCE',
+          clientRequestId: clientRequestId('miniapp-balance'),
+        },
+      })
+      this.setData({
+        payment: {
+          ...response.data,
+          amountText: cents(response.data.amountCents),
+        },
+        successMessage: '余额支付已完成',
+      })
+    })
+  },
+
   async completeTestPayment() {
     if (!this.data.payment || !this.data.payment.paymentId) {
       this.setData({ errorMessage: '请先创建测试支付单' })
@@ -156,6 +198,22 @@ Page({
       startAt: start.toISOString(),
       endAt: isoMinutesAfter(start, this.data.durationMinutes),
       pricingMode: this.data.pricingMode,
+      benefits: this.benefitsPayload(),
+    }
+  },
+
+  benefitsPayload() {
+    const couponGrantId = String(this.data.couponGrantId || '').trim()
+    const packageHoldingId = String(this.data.packageHoldingId || '').trim()
+    if (!couponGrantId && !packageHoldingId) return undefined
+    const packageMinutes = Number(this.data.packageMinutes || 0)
+    const packageCreditCents = Math.round(Number(this.data.packageCreditYuan || 0) * 100)
+    return {
+      couponGrantId: couponGrantId || null,
+      packageHoldingId: packageHoldingId || null,
+      packageMinutes: packageMinutes > 0 ? packageMinutes : 0,
+      packageCreditCents: packageCreditCents > 0 ? packageCreditCents : 0,
+      clientRequestId: clientRequestId('miniapp-benefit'),
     }
   },
 

miniapp/pages/room/detail.wxml

@@ -9,10 +9,19 @@
     <button size="mini" class="{{durationMinutes === 180 ? 'selected' : ''}}" data-minutes="180" bindtap="setDuration">3小时</button>
   </view>
 
+  <view class="section-title">权益抵扣</view>
+  <view class="benefit-grid">
+    <input placeholder="优惠券ID" value="{{couponGrantId}}" data-field="couponGrantId" bindinput="updateBenefitField" />
+    <input placeholder="套餐ID" value="{{packageHoldingId}}" data-field="packageHoldingId" bindinput="updateBenefitField" />
+    <input placeholder="套餐分钟" type="number" value="{{packageMinutes}}" data-field="packageMinutes" bindinput="updateBenefitField" />
+    <input placeholder="套餐抵扣元" type="digit" value="{{packageCreditYuan}}" data-field="packageCreditYuan" bindinput="updateBenefitField" />
+  </view>
+
   <view class="action-grid">
     <button loading="{{loading}}" bindtap="quote">报价</button>
     <button loading="{{loading}}" bindtap="reserve">预占</button>
     <button loading="{{loading}}" bindtap="createWechatPayment">微信支付</button>
+    <button loading="{{loading}}" bindtap="createBalancePayment">余额支付</button>
     <button loading="{{loading}}" bindtap="createTestPayment">测试支付</button>
     <button loading="{{loading}}" bindtap="completeTestPayment">完成测试支付</button>
   </view>
@@ -30,6 +39,8 @@
     <view class="result-title">订单</view>
     <view>订单编号：{{order.orderId}}</view>
     <view wx:if="{{order.reservationId}}">预占编号：{{order.reservationId}}</view>
+    <view wx:if="{{order.quote.discountCents}}">优惠抵扣：{{order.quote.discountCents}}分</view>
+    <view wx:if="{{order.quote.packageCreditCents}}">套餐抵扣：{{order.quote.packageCreditCents}}分</view>
     <button size="mini" data-order-id="{{order.orderId}}" bindtap="openOrder">查看订单</button>
   </view>
 

miniapp/pages/room/detail.wxss

@@ -22,13 +22,24 @@
 }
 
 .duration-row,
-.action-grid {
+.action-grid,
+.benefit-grid {
   display: flex;
   gap: 16rpx;
   flex-wrap: wrap;
   margin-bottom: 24rpx;
 }
 
+.benefit-grid input {
+  box-sizing: border-box;
+  flex: 1 1 280rpx;
+  min-height: 72rpx;
+  padding: 0 20rpx;
+  border: 1rpx solid #d9dde5;
+  border-radius: 12rpx;
+  background: #ffffff;
+}
+
 .action-grid button {
   flex: 1 1 280rpx;
 }