feat: 搭建商城基础业务

Yi.Abp.Net8/module/bbs/Yi.Framework.Bbs.Domain/Managers/BbsShopManager.cs

@@ -1,11 +0,0 @@
-using Volo.Abp.Domain.Services;
-
-namespace Yi.Framework.Bbs.Domain.Managers;
-
-/// <summary>
-/// bbs商品领域
-/// </summary>
-public class BbsShopManager: DomainService
-{
-    
-}

Yi.Abp.Net8/module/bbs/Yi.Framework.Bbs.Domain/Managers/Shop/BbsShopManager.cs

@@ -1,11 +1,55 @@
 using Volo.Abp.Domain.Services;
+using Yi.Framework.Bbs.Domain.Entities.Shop;
+using Yi.Framework.Bbs.Domain.Shared.Enums;
+using Yi.Framework.SqlSugarCore.Abstractions;
 
 namespace Yi.Framework.Bbs.Domain.Managers.Shop;
 
 /// <summary>
 /// bbs商城领域服务
 /// </summary>
-public class BbsShopManager: DomainService
+public class BbsShopManager : DomainService
 {
-    
+    private readonly ISqlSugarRepository<BbsGoodsAggregateRoot> _repository;
+    private readonly ISqlSugarRepository<BbsGoodsApplyAggregateRoot> _applyRepository;
+
+    public BbsShopManager(ISqlSugarRepository<BbsGoodsAggregateRoot> repository,
+        ISqlSugarRepository<BbsGoodsApplyAggregateRoot> applyRepository)
+    {
+        _repository = repository;
+        _applyRepository = applyRepository;
+    }
+
+    /// <summary>
+    /// 申请购买商品
+    /// </summary>
+    /// <param name="userId"></param>
+    /// <param name="goodsId"></param>
+    /// <param name="contactInformation"></param>
+    /// <exception cref="UserFriendlyException"></exception>
+    public async Task BuyAsync(Guid userId, Guid goodsId,string contactInformation)
+    {
+        var goods = await _repository.GetFirstAsync(x => x.Id == goodsId);
+
+        if (goods.GoodsType==GoodsTypeEnum.Apply)
+        {
+            var count= await _applyRepository.CountAsync(x => x.UserId == userId);
+            if (count>=goods.LimitNumber)
+            {
+                throw new UserFriendlyException("你已经达该商品最大限购次数");
+            }
+
+            await _applyRepository.InsertAsync(new BbsGoodsApplyAggregateRoot
+            {
+                GoodsId = goodsId,
+                UserId = userId,
+                ContactInformation = contactInformation
+            });
+
+            //更新库存
+            goods.StockNumber -= 1;
+            await _repository.UpdateAsync(goods);
+        }
+      
+    }
 }