feat: 优化讲价和咨询功能

pages/goods-detail/goods-detail.js

@@ -729,10 +729,24 @@ Page({
   showBargainModal() {
     this.setData({
       showBargainModal: true,
-      bargainPrice: ''
+      bargainPrice: '',
+      selectedSpecIndex: 0  // 默认选中第一条规格
+    });
+  },
+  
+  // 选择规格
+  selectSpec(e) {
+    const index = e.currentTarget.dataset.index;
+    this.setData({
+      selectedSpecIndex: index
     });
   },
   
+  // 阻止事件冒泡
+  stopPropagation() {
+    // 阻止点击弹窗内容时关闭弹窗
+  },
+  
   // 隐藏讲价弹窗
   hideBargainModal() {
     this.setData({
@@ -759,6 +773,19 @@ Page({
       return;
     }
     
+    // 获取选中的规格信息
+    const selectedSpecIndex = this.data.selectedSpecIndex;
+    const weightQuantityData = this.data.goodsDetail.weightQuantityData || [];
+    const selectedSpec = weightQuantityData[selectedSpecIndex];
+    
+    if (!selectedSpec) {
+      wx.showToast({
+        title: '请选择规格',
+        icon: 'none'
+      });
+      return;
+    }
+    
     const contactName = this.data.goodsDetail.product_contact;
     const contactPhone = this.data.goodsDetail.contact_phone;
     
@@ -843,23 +870,32 @@ Page({
     });
     
     // 构建讲价价格消息（第二条消息）
-    const bargainPriceMessage = `【讲价】预期价格：${bargainPrice}元`;
+    const bargainPriceMessage = `【讲价】规格：${selectedSpec.display}，预期价格：${bargainPrice}元`;
     
     // 调用API创建聊天记录并发送消息
     API.fixChatRecordsPair(userPhone, contactPhone).then(res => {
       console.log('聊天建立成功:', res);
       
-      // 发送第一条消息：商品信息
+      // 发送第一条消息：讲价价格
-      return API.sendMessage(userPhone, contactPhone, structuredGoodsMessage);
+      return API.sendMessage(userPhone, contactPhone, bargainPriceMessage);
     }).then(() => {
-      console.log('商品信息消息发送成功');
+      console.log('讲价价格消息发送成功');
       
-      // 发送第二条消息：讲价价格
+      // 发送第二条消息：商品信息
-      return API.sendMessage(userPhone, contactPhone, bargainPriceMessage);
+      return API.sendMessage(userPhone, contactPhone, structuredGoodsMessage);
     }).then(sendRes => {
-      console.log('讲价价格消息发送成功:', sendRes);
+      console.log('商品信息消息发送成功:', sendRes);
       wx.hideLoading();
       
+      // 更新未读消息数（发送了两条消息，增加2）
+      API.updateUnreadCount(contactPhone, 2)
+        .then(() => {
+          console.log('更新未读消息数成功');
+        })
+        .catch(error => {
+          console.error('更新未读消息数失败:', error);
+        });
+      
       wx.showToast({
         title: '讲价请求已发送',
         icon: 'success'
@@ -1029,6 +1065,7 @@ Page({
     // 讲价弹窗相关数据
     showBargainModal: false,     // 是否显示讲价弹窗
     bargainPrice: '',           // 讲价价格
+    selectedSpecIndex: 0,        // 选中的规格索引，默认选中第一条
     // 删除评论相关数据
     showDeleteConfirmModal: false, // 是否显示删除确认弹窗
     commentToDelete: null,      // 要删除的评论对象
@@ -2752,9 +2789,26 @@ Page({
             const hasSent = sentGoodsMessages.includes(messageKey);
             
             if (!hasSent) {
-              // 发送商品分享消息
+              // 构建问候语消息
-              API.sendMessage(userPhone, contactPhone, structuredMessage).then(sendRes => {
+              const greetingMessage = '你好我想了解一下这个商品';
-                console.log('商品分享消息发送成功:', sendRes);
+              
+              // 先发送商品分享消息
+              API.sendMessage(userPhone, contactPhone, structuredMessage).then(() => {
+                console.log('商品分享消息发送成功');
+                
+                // 再发送问候语
+                return API.sendMessage(userPhone, contactPhone, greetingMessage);
+              }).then(sendRes => {
+                console.log('问候语消息发送成功:', sendRes);
+                
+                // 更新未读消息数（发送了两条消息，增加2）
+                API.updateUnreadCount(contactPhone, 2)
+                  .then(() => {
+                    console.log('更新未读消息数成功');
+                  })
+                  .catch(error => {
+                    console.error('更新未读消息数失败:', error);
+                  });
                 
                 // 记录已发送的消息
                 sentGoodsMessages.push(messageKey);
@@ -2775,7 +2829,7 @@ Page({
                   }
                 });
               }).catch(sendErr => {
-                console.error('发送商品分享消息失败:', sendErr);
+                console.error('发送消息失败:', sendErr);
                 // 即使发送消息失败，也跳转到聊天页面
                 wx.navigateTo({
                   url: `/pages/chat-detail/index?userId=${chatSessionId}&userName=${encodeURIComponent(contactName || '联系人')}&phone=${contactPhone}&isManager=true`,

pages/goods-detail/goods-detail.wxml

@@ -442,21 +442,43 @@
   </view>
 
   <!-- 讲价弹窗 -->
-  <view class="bargain-modal-overlay" wx:if="{{showBargainModal}}">
+  <view class="bargain-modal-overlay" wx:if="{{showBargainModal}}" bindtap="hideBargainModal">
-    <view class="bargain-modal-container">
+    <view class="bargain-modal-container" catchtap="stopPropagation">
       <view class="bargain-modal-title">
         讲价
       </view>
       
       <view class="bargain-modal-content">
-        <text class="bargain-hint">请输入您的预期价格（元）</text>
+        <view class="bargain-spec-section">
-        <input 
+          <text class="bargain-spec-title">选择规格</text>
-          class="bargain-modal-input" 
+          <scroll-view class="bargain-spec-scroll" scroll-y="{{true}}">
-          type="digit"
+            <view class="bargain-spec-list">
-          placeholder="请输入价格"
+              <block wx:for="{{goodsDetail.weightQuantityData}}" wx:key="index">
-          value="{{bargainPrice}}"
+                <view 
-          bindinput="onBargainInput"
+                  class="bargain-spec-item {{selectedSpecIndex === index ? 'selected' : ''}}"
-        />
+                  bindtap="selectSpec"
+                  data-index="{{index}}"
+                >
+                  <text class="spec-text">{{item.display}}</text>
+                  <text wx:if="{{item.priceChangeDirection === 'up'}}" class="price-change-arrow up">↑</text>
+                  <text wx:elif="{{item.priceChangeDirection === 'down'}}" class="price-change-arrow down">↓</text>
+                  <text wx:if="{{item.isOffShelf}}" class="spec-off-shelf">已下架</text>
+                </view>
+              </block>
+            </view>
+          </scroll-view>
+        </view>
+        
+        <view class="bargain-price-section">
+          <text class="bargain-hint">请输入您的预期价格（元）</text>
+          <input 
+            class="bargain-modal-input" 
+            type="digit"
+            placeholder="请输入价格"
+            value="{{bargainPrice}}"
+            bindinput="onBargainInput"
+          />
+        </view>
       </view>
       
       <view class="bargain-modal-buttons">

pages/goods-detail/goods-detail.wxss

@@ -1530,6 +1530,74 @@ video.slider-media .wx-video-volume-icon {
   cursor: not-allowed;
 }
 
+/* 讲价弹窗规格选择样式 */
+.bargain-spec-section {
+  margin-bottom: 30rpx;
+}
+
+.bargain-spec-title {
+  font-size: 28rpx;
+  color: #262626;
+  font-weight: 600;
+  margin-bottom: 16rpx;
+  display: block;
+}
+
+.bargain-spec-scroll {
+  max-height: 400rpx;
+  border: 2rpx solid #e0e0e0;
+  border-radius: 10rpx;
+  background-color: #fafafa;
+}
+
+.bargain-spec-list {
+  padding: 16rpx;
+}
+
+.bargain-spec-item {
+  padding: 24rpx 20rpx;
+  margin-bottom: 12rpx;
+  background-color: #ffffff;
+  border: 2rpx solid #e0e0e0;
+  border-radius: 10rpx;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  transition: all 0.3s ease;
+}
+
+.bargain-spec-item:last-child {
+  margin-bottom: 0;
+}
+
+.bargain-spec-item.selected {
+  border-color: #1890ff;
+  background-color: #e6f7ff;
+  box-shadow: 0 2rpx 8rpx rgba(24, 144, 255, 0.15);
+}
+
+.bargain-spec-item:active {
+  transform: scale(0.98);
+}
+
+.spec-text {
+  font-size: 28rpx;
+  color: #333;
+  font-weight: 500;
+  flex: 1;
+  line-height: 1.4;
+}
+
+.spec-off-shelf {
+  color: #ff4d4f;
+  font-size: 24rpx;
+  margin-left: 12rpx;
+}
+
+.bargain-price-section {
+  margin-top: 30rpx;
+}
+
 .comment-modal-overlay {
   position: fixed;
   top: 0;