refactor(PortfolioService): 重构组合服务方法并优化事务处理

- 将同步方法改为异步方法
- 移除冗余注释并优化代码结构
- 统一事务处理方法调用
- 调整参数命名以提高可读性

AssetManager.Services/PortfolioFacade.cs

@@ -102,7 +102,8 @@ public class PortfolioFacade : IPortfolioFacade
     public async Task<List<TransactionItem>> GetTransactionsAsync(string portfolioId, GetTransactionsRequest request, string userId)
     {
         _logger.LogInformation("获取交易列表: {PortfolioId}", portfolioId);
-        return await _portfolioService.GetTransactionsAsync(portfolioId, request, userId);
+        var response = await _portfolioService.GetTransactionsAsync(portfolioId, userId, request.Limit, request.Offset);
+        return response.Items ?? new List<TransactionItem>();
     }
 
     public async Task<StrategySignalResponse> GetStrategySignalAsync(string portfolioId, string userId)

AssetManager.Services/PortfolioService.cs

@@ -28,7 +28,7 @@ public class PortfolioService : IPortfolioService
         _logger = logger;
     }
 
-    public CreatePortfolioResponse CreatePortfolio(CreatePortfolioRequest request, string userId)
+    public async Task<CreatePortfolioResponse> CreatePortfolioAsync(CreatePortfolioRequest request, string userId)
     {
         var portfolio = new Portfolio
         {
@@ -79,8 +79,8 @@ public class PortfolioService : IPortfolioService
                                     {
                                         Code = asset.Symbol,
                                         Name = asset.Symbol,
-                                        Price = 0, // 价格留空，用户后续填写
+                                        Price = 0,
-                                        Amount = 0, // 数量留空，用户后续填写
+                                        Amount = 0,
                                         Currency = request.Currency,
                                         AssetType = "Stock"
                                     });
@@ -88,7 +88,6 @@ public class PortfolioService : IPortfolioService
                             }
                         }
                     }
-                    // 其他策略类型可以在这里扩展
                 }
                 catch (Exception ex)
                 {
@@ -108,7 +107,6 @@ public class PortfolioService : IPortfolioService
                 continue;
             }
 
-            // 解析实际买入时间，如果解析失败则用当前时间
             DateTime buyTime = DateTime.Now;
             if (!string.IsNullOrEmpty(stock.Date))
             {
@@ -127,8 +125,8 @@ public class PortfolioService : IPortfolioService
                 AssetType = string.IsNullOrEmpty(stock.AssetType) ? "Stock" : stock.AssetType,
                 Shares = (decimal)stock.Amount,
                 AvgPrice = (decimal)stock.Price,
-                TotalCost = (decimal)(stock.Price * stock.Amount), // 初始成本 = 价格 × 数量
+                TotalCost = (decimal)(stock.Price * stock.Amount),
-                Currency = stock.Currency ?? request.Currency, // 使用持仓币种，而非组合本位币
+                Currency = stock.Currency ?? request.Currency,
                 CreatedAt = buyTime,
                 UpdatedAt = DateTime.Now
             };
@@ -138,12 +136,10 @@ public class PortfolioService : IPortfolioService
 
             _db.Insertable(position).ExecuteCommand();
 
-            // 创建交易记录（保存汇率信息）
             decimal totalAmount = (decimal)(stock.Price * stock.Amount);
             decimal? exchangeRate = null;
             decimal? totalAmountBase = null;
             
-            // 如果持仓币种与组合币种不同，需要保存汇率
             if (!string.IsNullOrEmpty(stock.Currency) && !stock.Currency.Equals(request.Currency, StringComparison.OrdinalIgnoreCase))
             {
                 exchangeRate = await _exchangeRateService.GetExchangeRateAsync(stock.Currency, request.Currency);
@@ -459,10 +455,10 @@ public class PortfolioService : IPortfolioService
         };
     }
 
-    public async Task<PortfolioDetailResponse> GetPortfolioByIdAsync(string id, string userId)
+    public async Task<PortfolioDetailResponse> GetPortfolioDetailAsync(string portfolioId, string userId)
     {
         var portfolio = _db.Queryable<Portfolio>()
-            .Where(p => p.Id == id && p.UserId == userId)
+            .Where(p => p.Id == portfolioId && p.UserId == userId)
             .First();
 
         if (portfolio == null)
@@ -471,7 +467,7 @@ public class PortfolioService : IPortfolioService
         }
 
         var Positions = _db.Queryable<Position>()
-            .Where(pos => pos.PortfolioId == id)
+            .Where(pos => pos.PortfolioId == portfolioId)
             .ToList();
 
         // 获取每个持仓的实时价格并转换为组合本位币
@@ -723,7 +719,7 @@ public class PortfolioService : IPortfolioService
         // 使用事务包裹所有数据库操作
         try
         {
-            _db.BeginTran();
+            _db.Ado.BeginTran();
 
             // 1. 插入交易记录
             _db.Insertable(transaction).ExecuteCommand();
@@ -737,7 +733,6 @@ public class PortfolioService : IPortfolioService
             {
                 if (request.Type == "buy")
                 {
-                    // 计算新的平均价格和总成本
                     var buyAmount = (decimal)request.Amount * (decimal)request.Price;
                     var newTotalShares = position.Shares + (decimal)request.Amount;
                     var newTotalCost = position.TotalCost + buyAmount;
@@ -753,7 +748,6 @@ public class PortfolioService : IPortfolioService
                 }
                 else if (request.Type == "sell")
                 {
-                    // 按比例减少成本
                     var sellRatio = (decimal)request.Amount / position.Shares;
                     var costToReduce = position.TotalCost * sellRatio;
                     
@@ -776,7 +770,6 @@ public class PortfolioService : IPortfolioService
             }
             else if (request.Type == "buy")
             {
-                // 创建新持仓
                 position = new Position
                 {
                     Id = "pos-" + Guid.NewGuid().ToString().Substring(0, 8),
@@ -811,7 +804,6 @@ public class PortfolioService : IPortfolioService
                     continue;
                 }
 
-                // 获取实时价格（异步调用），失败则降级使用成本价
                 decimal CurrentPrice = pos.AvgPrice;
                 try
                 {
@@ -833,12 +825,11 @@ public class PortfolioService : IPortfolioService
             portfolio.UpdatedAt = DateTime.Now;
             _db.Updateable(portfolio).ExecuteCommand();
 
-            // 提交事务
+            _db.Ado.CommitTran();
-            _db.CommitTran();
         }
         catch (Exception ex)
         {
-            _db.RollbackTran();
+            _db.Ado.RollbackTran();
             _logger.LogError(ex, "创建交易失败，已回滚: {PortfolioId}, {StockCode}", request.PortfolioId, request.StockCode);
             throw;
         }