Fix：5397 【商城小程序】商品链接，连续快速点击“送给朋友”，重复弹出多个送礼页面

(cherry picked from commit 6d963a5bc0)

aiChat/mixins/chatMixinsV2.js

@@ -51,6 +51,7 @@ export const chatMixinsV2 = {
       audioPlayId: '',
       showGiftBtn: false,
       buyLoading: false,
+      buyActionLock: false,
       exceptionConfig: {
         model_exception: '您提的问题未能理解，云灵思想跑偏啦，重新整理一下问题或者重新提问，让云灵再试试！',
         voice_exception: ''
@@ -533,6 +534,10 @@ export const chatMixinsV2 = {
       this.productItemBuyNowOrGiftBuy(item, 2)
     },
     productItemBuyNowOrGiftBuy(item, BuyNowOrGiftBuyType) {
+      if (this.buyActionLock) {
+        return
+      }
+      this.buyActionLock = true
       this.audioStopHandle()
       this.cart_num = 1
       this.m_id = item.id
@@ -540,6 +545,7 @@ export const chatMixinsV2 = {
         const { data } = res
         this.storeInfo = {...data.storeInfo}
         if(data.storeInfo.stock === 0) {
+          this.buyActionLock = false
           uni.showToast({
             title: "产品库存不足，请选择其他商品",
             icon: "none",
@@ -577,6 +583,14 @@ export const chatMixinsV2 = {
           return
         }
         this.attr.cartAttr = !this.isOpen ? true : false
+        this.buyActionLock = false
+      }).catch(error => {
+        this.buyActionLock = false
+        uni.showToast({
+          title: error.msg || '操作失败，请稍后重试',
+          icon: "none",
+          duration: 3000
+        })
       })
     },
     buyNowOrGiftBuyReq(type) {
@@ -617,6 +631,7 @@ export const chatMixinsV2 = {
         })
       }).finally(() => {
         _this.buyLoading = false
+        _this.buyActionLock = false
       })
     },
     closeAttrWindow() {