From aa4f63455b8449f1b88db2160074916c16eb45f7 Mon Sep 17 00:00:00 2001
From: OpenClaw Agent <agent@openclaw.ai>
Date: Tue, 17 Mar 2026 04:22:00 +0000
Subject: [PATCH] =?UTF-8?q?refactor:=20=E4=BC=98=E5=8C=96YahooMarketServic?=
 =?UTF-8?q?e=EF=BC=8C=E5=A4=8D=E7=94=A8=E5=AE=9E=E4=BE=8B=E5=B9=B6?=
 =?UTF-8?q?=E6=94=B9=E8=BF=9B=E5=BC=82=E5=B8=B8=E7=B1=BB=E5=9E=8B?=
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---
 .../Services/YahooMarketService.cs            | 20 ++++++++-----------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/AssetManager.Infrastructure/Services/YahooMarketService.cs b/AssetManager.Infrastructure/Services/YahooMarketService.cs
index 079573c..b688299 100644
--- a/AssetManager.Infrastructure/Services/YahooMarketService.cs
+++ b/AssetManager.Infrastructure/Services/YahooMarketService.cs
@@ -34,7 +34,10 @@ public class YahooMarketService : IYahooMarketService
     public YahooMarketService(ILogger<YahooMarketService> logger)
     {
         _logger = logger;
-        _yahooQuotes = new YahooQuotesBuilder().Build();
+        // 默认获取最近60天的历史数据
+        _yahooQuotes = new YahooQuotesBuilder()
+            .WithHistoryStartDate(Instant.FromDateTimeUtc(DateTime.UtcNow.AddDays(-60)))
+            .Build();
     }
 
     public async Task<MarketPriceResponse> GetStockPriceAsync(string symbol)
@@ -43,11 +46,11 @@ public class YahooMarketService : IYahooMarketService
         
         Snapshot? snapshot = await _yahooQuotes.GetSnapshotAsync(symbol);
         if (snapshot is null)
-            throw new Exception($"Yahoo未知标的: {symbol}");
+            throw new InvalidOperationException($"Yahoo未知标的: {symbol}");
         
         decimal price = snapshot.RegularMarketPrice;
         if (price <= 0)
-            throw new Exception($"Yahoo获取价格失败，标的: {symbol}");
+            throw new InvalidOperationException($"Yahoo获取价格失败，标的: {symbol}");
         
         decimal previousClose = snapshot.RegularMarketPreviousClose;
         if (previousClose <= 0)
@@ -70,16 +73,9 @@ public class YahooMarketService : IYahooMarketService
     {
         _logger.LogInformation("Yahoo获取历史数据: {Symbol}, {Timeframe}, {Limit}", symbol, timeframe, limit);
         
-        // 计算历史数据的开始时间
-        Instant startDate = Instant.FromDateTimeUtc(DateTime.UtcNow.AddDays(-limit * 2));
-        
-        YahooQuotes yahooQuotes = new YahooQuotesBuilder()
-            .WithHistoryStartDate(startDate)
-            .Build();
-        
-        Result<History> result = await yahooQuotes.GetHistoryAsync(symbol);
+        Result<History> result = await _yahooQuotes.GetHistoryAsync(symbol);
         if (result.Value == null)
-            throw new Exception($"Yahoo获取历史数据失败，标的: {symbol}");
+            throw new InvalidOperationException($"Yahoo获取历史数据失败，标的: {symbol}");
         
         History history = result.Value;
         var ticks = history.Ticks;