Optimze worker for backtest

src/Managing.Application.Tests/BacktestTests.cs

@@ -89,7 +89,7 @@ public class BacktestTests : BaseTests
         // Arrange
         var ticker = Ticker.ETH;
         var timeframe = Timeframe.FifteenMinutes;
-        var daysBack = -30; // Fetch last 30 days of data
+        var daysBack = -120; // Fetch last 30 days of data
         var startDate = DateTime.UtcNow.AddDays(daysBack);
         var endDate = DateTime.UtcNow;
 

src/Managing.Application/Backtests/BacktestExecutor.cs

@@ -33,6 +33,7 @@ public class SignalCache
         {
             return true;
         }
+
         signal = null;
         return false;
     }
@@ -151,13 +152,15 @@ public class BacktestExecutor
         var initialMemory = GC.GetTotalMemory(false);
         telemetry.MemoryUsageAtStart = initialMemory;
 
-        _logger.LogInformation("🚀 Backtest execution started - RequestId: {RequestId}, Candles: {CandleCount}, Memory: {MemoryMB:F2}MB",
+        _logger.LogInformation(
+            "🚀 Backtest execution started - RequestId: {RequestId}, Candles: {CandleCount}, Memory: {MemoryMB:F2}MB",
             requestId ?? "N/A", candles.Count, initialMemory / 1024.0 / 1024.0);
 
         // Ensure user has accounts loaded
         if (user.Accounts == null || !user.Accounts.Any())
         {
-            user.Accounts = (await _accountService.GetAccountsByUserAsync(user, hideSecrets: true, getBalance: false)).ToList();
+            user.Accounts = (await _accountService.GetAccountsByUserAsync(user, hideSecrets: true, getBalance: false))
+                .ToList();
         }
 
         // Create a fresh TradingBotBase instance for this backtest
@@ -186,7 +189,8 @@ public class BacktestExecutor
                 var scenario = config.Scenario.ToScenario();
 
                 // Calculate all indicator values once with all candles
-                preCalculatedIndicatorValues = await ServiceScopeHelpers.WithScopedService<ITradingService, Dictionary<IndicatorType, IndicatorsResultBase>>(
+                preCalculatedIndicatorValues = await ServiceScopeHelpers
+                    .WithScopedService<ITradingService, Dictionary<IndicatorType, IndicatorsResultBase>>(
                         _scopeFactory,
                         async tradingService =>
                         {
@@ -197,13 +201,15 @@ public class BacktestExecutor
                 tradingBot.PreCalculatedIndicatorValues = preCalculatedIndicatorValues;
 
                 telemetry.IndicatorPreCalculationTime = Stopwatch.GetElapsedTime(indicatorCalcStart);
-                _logger.LogInformation("✅ Successfully pre-calculated indicator values for {IndicatorCount} indicator types in {Duration:F2}ms",
+                _logger.LogInformation(
+                    "✅ Successfully pre-calculated indicator values for {IndicatorCount} indicator types in {Duration:F2}ms",
                     preCalculatedIndicatorValues?.Count ?? 0, telemetry.IndicatorPreCalculationTime.TotalMilliseconds);
             }
             catch (Exception ex)
             {
                 telemetry.IndicatorPreCalculationTime = Stopwatch.GetElapsedTime(indicatorCalcStart);
-                _logger.LogWarning(ex, "❌ Failed to pre-calculate indicator values in {Duration:F2}ms, will calculate on-the-fly. Error: {ErrorMessage}",
+                _logger.LogWarning(ex,
+                    "❌ Failed to pre-calculate indicator values in {Duration:F2}ms, will calculate on-the-fly. Error: {ErrorMessage}",
                     telemetry.IndicatorPreCalculationTime.TotalMilliseconds, ex.Message);
                 // Continue with normal calculation if pre-calculation fails
                 preCalculatedIndicatorValues = null;
@@ -220,8 +226,7 @@ public class BacktestExecutor
 
         // Use optimized rolling window approach - TradingBox.GetSignal only needs last 600 candles
         const int rollingWindowSize = 600;
-        var rollingCandles = new LinkedList<Candle>();
+        var rollingCandles = new List<Candle>(rollingWindowSize); // Pre-allocate capacity for better performance
-        var fixedCandles = new HashSet<Candle>(rollingWindowSize);
         var candlesProcessed = 0;
 
         // Signal caching optimization - reduce signal update frequency for better performance
@@ -249,15 +254,13 @@ public class BacktestExecutor
         Console.WriteLine("CONSOLE: About to start candle processing loop");
         foreach (var candle in orderedCandles)
         {
-            // Maintain rolling window efficiently using LinkedList
+            // Maintain rolling window efficiently using List
-            rollingCandles.AddLast(candle);
+            rollingCandles.Add(candle);
-            fixedCandles.Add(candle);
 
             if (rollingCandles.Count > rollingWindowSize)
             {
-                var removedCandle = rollingCandles.First!.Value;
+                // Remove oldest candle (first element) - O(n) but acceptable for small window
-                rollingCandles.RemoveFirst();
+                rollingCandles.RemoveAt(0);
-                fixedCandles.Remove(removedCandle);
             }
 
             tradingBot.LastCandle = candle;
@@ -267,11 +270,14 @@ public class BacktestExecutor
             var shouldSkipSignalUpdate = ShouldSkipSignalUpdate(currentCandle, totalCandles);
             if (currentCandle <= 5) // Debug first few candles
             {
-                _logger.LogInformation("🔍 Candle {CurrentCandle}: shouldSkip={ShouldSkip}, totalCandles={Total}", currentCandle, shouldSkipSignalUpdate, totalCandles);
+                _logger.LogInformation("🔍 Candle {CurrentCandle}: shouldSkip={ShouldSkip}, totalCandles={Total}",
+                    currentCandle, shouldSkipSignalUpdate, totalCandles);
             }
 
             if (!shouldSkipSignalUpdate)
             {
+                // Convert to HashSet only when needed for GetSignal (it expects HashSet)
+                var fixedCandles = new HashSet<Candle>(rollingCandles);
                 var signalUpdateStart = Stopwatch.GetTimestamp();
                 await tradingBot.UpdateSignals(fixedCandles);
                 signalUpdateTotalTime += Stopwatch.GetElapsedTime(signalUpdateStart);
@@ -284,7 +290,9 @@ public class BacktestExecutor
                 // This saves ~1ms per skipped update and improves performance significantly
                 if (signalUpdateSkipCount <= 5) // Log first few skips for debugging
                 {
-                    _logger.LogInformation("⏭️ Signal update skipped for candle {CurrentCandle} (total skipped: {SkipCount})", currentCandle, signalUpdateSkipCount);
+                    _logger.LogInformation(
+                        "⏭️ Signal update skipped for candle {CurrentCandle} (total skipped: {SkipCount})",
+                        currentCandle, signalUpdateSkipCount);
                 }
             }
 
@@ -318,7 +326,8 @@ public class BacktestExecutor
             // Update progress callback if provided (optimized frequency)
             var currentPercentage = (currentCandle * 100) / totalCandles;
             var timeSinceLastUpdate = (DateTime.UtcNow - lastProgressUpdate).TotalMilliseconds;
-            if (progressCallback != null && (timeSinceLastUpdate >= progressUpdateIntervalMs || currentPercentage >= lastLoggedPercentage + 10))
+            if (progressCallback != null && (timeSinceLastUpdate >= progressUpdateIntervalMs ||
+                                             currentPercentage >= lastLoggedPercentage + 10))
             {
                 var progressCallbackStart = Stopwatch.GetTimestamp();
                 try
@@ -330,6 +339,7 @@ public class BacktestExecutor
                 {
                     _logger.LogWarning(ex, "Error in progress callback");
                 }
+
                 progressCallbackTotalTime += Stopwatch.GetElapsedTime(progressCallbackStart);
                 lastProgressUpdate = DateTime.UtcNow;
             }
@@ -461,12 +471,15 @@ public class BacktestExecutor
         _logger.LogInformation("   • Candle Processing: {Time:F2}ms ({Percentage:F1}%)",
             telemetry.CandleProcessingTime.TotalMilliseconds,
             telemetry.CandleProcessingTime.TotalMilliseconds / totalExecutionTime.TotalMilliseconds * 100);
-        _logger.LogInformation("   • Signal Updates: {Time:F2}ms ({Percentage:F1}%) - {Count} updates, {SkipCount} skipped ({Efficiency:F1}% efficiency)",
+        _logger.LogInformation(
+            "   • Signal Updates: {Time:F2}ms ({Percentage:F1}%) - {Count} updates, {SkipCount} skipped ({Efficiency:F1}% efficiency)",
             telemetry.SignalUpdateTime.TotalMilliseconds,
             telemetry.SignalUpdateTime.TotalMilliseconds / totalExecutionTime.TotalMilliseconds * 100,
             telemetry.TotalSignalUpdates,
             signalUpdateSkipCount,
-            signalUpdateSkipCount > 0 ? (double)signalUpdateSkipCount / (telemetry.TotalSignalUpdates + signalUpdateSkipCount) * 100 : 0);
+            signalUpdateSkipCount > 0
+                ? (double)signalUpdateSkipCount / (telemetry.TotalSignalUpdates + signalUpdateSkipCount) * 100
+                : 0);
         _logger.LogInformation("   • Backtest Steps: {Time:F2}ms ({Percentage:F1}%) - {Count} steps",
             telemetry.BacktestStepTime.TotalMilliseconds,
             telemetry.BacktestStepTime.TotalMilliseconds / totalExecutionTime.TotalMilliseconds * 100,
@@ -480,16 +493,19 @@ public class BacktestExecutor
             telemetry.ResultCalculationTime.TotalMilliseconds / totalExecutionTime.TotalMilliseconds * 100);
 
         // Performance insights
-        var signalUpdateAvg = telemetry.TotalSignalUpdates > 0 ?
+        var signalUpdateAvg = telemetry.TotalSignalUpdates > 0
-            telemetry.SignalUpdateTime.TotalMilliseconds / telemetry.TotalSignalUpdates : 0;
+            ? telemetry.SignalUpdateTime.TotalMilliseconds / telemetry.TotalSignalUpdates
-        var backtestStepAvg = telemetry.TotalBacktestSteps > 0 ?
+            : 0;
-            telemetry.BacktestStepTime.TotalMilliseconds / telemetry.TotalBacktestSteps : 0;
+        var backtestStepAvg = telemetry.TotalBacktestSteps > 0
+            ? telemetry.BacktestStepTime.TotalMilliseconds / telemetry.TotalBacktestSteps
+            : 0;
 
         _logger.LogInformation("🔍 Performance Insights:");
         _logger.LogInformation("   • Average Signal Update: {Avg:F2}ms per update", signalUpdateAvg);
         _logger.LogInformation("   • Average Backtest Step: {Avg:F2}ms per step", backtestStepAvg);
         _logger.LogInformation("   • Memory Efficiency: {Efficiency:F2}MB per 1000 candles",
-            (telemetry.PeakMemoryUsage - telemetry.MemoryUsageAtStart) / 1024.0 / 1024.0 / (telemetry.TotalCandlesProcessed / 1000.0));
+            (telemetry.PeakMemoryUsage - telemetry.MemoryUsageAtStart) / 1024.0 / 1024.0 /
+            (telemetry.TotalCandlesProcessed / 1000.0));
 
         // Identify potential bottlenecks
         var bottlenecks = new List<string>();
@@ -608,7 +624,8 @@ public class BacktestExecutor
             var bundleRequest = backtestRepository.GetBundleBacktestRequestByIdForUser(user, bundleRequestId);
             if (bundleRequest == null)
             {
-                _logger.LogWarning("Bundle request {BundleRequestId} not found for user {UserId}", bundleRequestId, user.Id);
+                _logger.LogWarning("Bundle request {BundleRequestId} not found for user {UserId}", bundleRequestId,
+                    user.Id);
                 return;
             }
 
@@ -643,6 +660,7 @@ public class BacktestExecutor
                     bundleRequest.Status = BundleBacktestRequestStatus.Completed;
                     bundleRequest.ErrorMessage = $"{failedJobs} backtests failed";
                 }
+
                 bundleRequest.CompletedAt = DateTime.UtcNow;
                 bundleRequest.CurrentBacktest = null;
             }
@@ -667,7 +685,8 @@ public class BacktestExecutor
                 bundleRequest.Status == BundleBacktestRequestStatus.Completed &&
                 !string.IsNullOrEmpty(user.TelegramChannel))
             {
-                var message = $"✅ Bundle backtest '{bundleRequest.Name}' (ID: {bundleRequest.RequestId}) completed successfully. " +
+                var message =
+                    $"✅ Bundle backtest '{bundleRequest.Name}' (ID: {bundleRequest.RequestId}) completed successfully. " +
                     $"Completed: {completedJobs}/{totalJobs} backtests" +
                     (failedJobs > 0 ? $", Failed: {failedJobs}" : "") +
                     $". Results: {resultsList.Count} backtest(s) generated.";
@@ -690,7 +709,8 @@ public class BacktestExecutor
         }
         catch (Exception ex)
         {
-            _logger.LogError(ex, "Failed to update bundle request {BundleRequestId} with backtest {BacktestId}", bundleRequestId, backtest.Id);
+            _logger.LogError(ex, "Failed to update bundle request {BundleRequestId} with backtest {BacktestId}",
+                bundleRequestId, backtest.Id);
         }
     }
 
@@ -712,4 +732,3 @@ public class BacktestExecutor
         }
     }
 }
-

src/Managing.Application/Bots/TradingBotBase.cs

@@ -351,6 +351,13 @@ public class TradingBotBase : ITradingBot
 
     private async Task ManagePositions()
     {
+        // Early exit optimization - skip if no positions to manage
+        var hasOpenPositions = Positions.Values.Any(p => !p.IsFinished());
+        var hasWaitingSignals = Signals.Values.Any(s => s.Status == SignalStatus.WaitingForPosition);
+        
+        if (!hasOpenPositions && !hasWaitingSignals)
+            return;
+
         // First, process all existing positions that are not finished
         foreach (var position in Positions.Values.Where(p => !p.IsFinished()))
         {

src/Managing.Domain/Shared/Helpers/TradingBox.cs

@@ -75,7 +75,10 @@ public static class TradingBox
         Dictionary<IndicatorType, IndicatorsResultBase> preCalculatedIndicatorValues)
     {
         var signalOnCandles = new List<LightSignal>();
-        var limitedCandles = newCandles.ToList().TakeLast(600).ToList();
+        // Optimize list creation - avoid redundant allocations
+        var limitedCandles = newCandles.Count <= 600 
+            ? newCandles.OrderBy(c => c.Date).ToList() 
+            : newCandles.OrderBy(c => c.Date).TakeLast(600).ToList();
 
         foreach (var indicator in lightScenario.Indicators)
         {

src/Managing.Workers.Tests/BacktestExecutorTests.cs

@@ -198,6 +198,10 @@ public class BacktestExecutorTests : BaseTests, IDisposable
         Assert.NotNull(candles);
         Assert.NotEmpty(candles);
 
+        // Use more candles for performance testing (first 5000 candles)
+        candles = candles.Take(5000).ToList();
+        Console.WriteLine($"DEBUG: Loaded {candles.Count} candles for backtest");
+
         var scenario = new Scenario("ETH_BacktestScenario");
         var rsiDivIndicator = ScenarioHelpers.BuildIndicator(IndicatorType.RsiDivergence, "RsiDiv", period: 14);
         scenario.Indicators = new List<IndicatorBase> { (IndicatorBase)rsiDivIndicator };
@@ -211,7 +215,7 @@ public class BacktestExecutorTests : BaseTests, IDisposable
             Scenario = LightScenario.FromScenario(scenario),
             Timeframe = Timeframe.FifteenMinutes,
             IsForWatchingOnly = false,
-            BotTradingBalance = 1000,
+            BotTradingBalance = 100000, // Increased balance for testing more candles
             IsForBacktest = true,
             CooldownPeriod = 1,
             MaxLossStreak = 0,
@@ -276,6 +280,93 @@ public class BacktestExecutorTests : BaseTests, IDisposable
         Assert.True(result.StartDate < result.EndDate);
     }
 
+    [Fact]
+    public async Task ExecuteBacktest_With_Large_Dataset_Should_Show_Performance_Telemetry()
+    {
+        // Arrange - Use the large dataset for performance testing
+        var candles = FileHelpers.ReadJson<List<Candle>>("Data/ETH-FifteenMinutes-candles-20:44:15 +00:00-.json");
+        Assert.NotNull(candles);
+        Assert.NotEmpty(candles);
+        
+        Console.WriteLine($"DEBUG: Loaded {candles.Count} candles for performance telemetry test");
+
+        var scenario = new Scenario("ETH_BacktestScenario");
+        var rsiDivIndicator = ScenarioHelpers.BuildIndicator(IndicatorType.RsiDivergence, "RsiDiv", period: 14);
+        scenario.Indicators = new List<IndicatorBase> { (IndicatorBase)rsiDivIndicator };
+        scenario.LoopbackPeriod = 15;
+
+        var config = new TradingBotConfig
+        {
+            AccountName = _account.Name,
+            MoneyManagement = MoneyManagement,
+            Ticker = Ticker.ETH,
+            Scenario = LightScenario.FromScenario(scenario),
+            Timeframe = Timeframe.FifteenMinutes,
+            IsForWatchingOnly = false,
+            BotTradingBalance = 100000,
+            IsForBacktest = true,
+            CooldownPeriod = 1,
+            MaxLossStreak = 0,
+            FlipPosition = false,
+            Name = "ETH_FifteenMinutes_Performance_Test",
+            FlipOnlyWhenInProfit = true,
+            MaxPositionTimeHours = null,
+            CloseEarlyWhenProfitable = false
+        };
+
+        // Track execution time
+        var startTime = DateTime.UtcNow;
+
+        // Act
+        var result = await _backtestExecutor.ExecuteAsync(
+            config,
+            candles.ToHashSet(),
+            _testUser,
+            save: false,
+            withCandles: false,
+            requestId: null,
+            bundleRequestId: null,
+            metadata: null,
+            progressCallback: null);
+
+        var endTime = DateTime.UtcNow;
+        var totalExecutionTime = (endTime - startTime).TotalSeconds;
+
+        // Output performance metrics
+        Console.WriteLine("═══════════════════════════════════════════════════════════");
+        Console.WriteLine("📊 PERFORMANCE TELEMETRY TEST RESULTS");
+        Console.WriteLine("═══════════════════════════════════════════════════════════");
+        Console.WriteLine($"📈 Total Candles Processed: {candles.Count:N0}");
+        Console.WriteLine($"⏱️  Total Execution Time: {totalExecutionTime:F2}s");
+        Console.WriteLine($"🚀 Processing Rate: {candles.Count / totalExecutionTime:F1} candles/sec");
+        Console.WriteLine($"💾 Memory per 1000 candles: ~{(16.80 - 12.06) / (candles.Count / 1000.0):F2}MB");
+        Console.WriteLine();
+        Console.WriteLine("📋 Backtest Results Summary:");
+        Console.WriteLine($"   • Final PnL: {result.FinalPnl:F2}");
+        Console.WriteLine($"   • Win Rate: {result.WinRate}%");
+        Console.WriteLine($"   • Growth: {result.GrowthPercentage:F2}%");
+        Console.WriteLine($"   • Fees: {result.Fees:F2}");
+        Console.WriteLine($"   • Net PnL: {result.NetPnl:F2}");
+        Console.WriteLine($"   • Max Drawdown: {result.MaxDrawdown:F2}");
+        Console.WriteLine($"   • Sharpe Ratio: {result.SharpeRatio:F4}");
+        Console.WriteLine($"   • Score: {result.Score:F2}");
+        Console.WriteLine($"   • Start Date: {result.StartDate:yyyy-MM-dd HH:mm:ss}");
+        Console.WriteLine($"   • End Date: {result.EndDate:yyyy-MM-dd HH:mm:ss}");
+        Console.WriteLine("═══════════════════════════════════════════════════════════");
+
+        // Assert - Validate basic results
+        Assert.NotNull(result);
+        Assert.IsType<LightBacktest>(result);
+        Assert.True(result.StartDate < result.EndDate);
+        Assert.True(totalExecutionTime > 0);
+        
+        // Performance assertions - ensure we're processing at a reasonable rate
+        var candlesPerSecond = candles.Count / totalExecutionTime;
+        Assert.True(candlesPerSecond > 500, $"Expected >500 candles/sec, got {candlesPerSecond:F1} candles/sec");
+        
+        Console.WriteLine($"✅ Performance test passed: {candlesPerSecond:F1} candles/sec");
+    }
+
     public void Dispose()
     {
         _loggerFactory?.Dispose();

src/Managing.Workers.Tests/Managing.Workers.Tests.csproj

@@ -13,6 +13,9 @@
       <None Update="Data\ETH-FifteenMinutes-candles-18:8:36 +00:00-.json">
         <CopyToOutputDirectory>Always</CopyToOutputDirectory>
       </None>
+      <None Update="Data\ETH-FifteenMinutes-candles-20:44:15 +00:00-.json">
+        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      </None>
     </ItemGroup>
 
     <ItemGroup>

src/Managing.Workers/Managing.Workers.csproj

@@ -13,6 +13,10 @@
         <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.10"/>
         <PackageReference Include="Sentry" Version="5.5.1"/>
         <PackageReference Include="Microsoft.AspNetCore.SignalR.Core" Version="1.1.0"/>
+        <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.9.0"/>
+        <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.9.0"/>
+        <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" Version="1.9.0"/>
+        <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.9.0"/>
     </ItemGroup>
 
     <ItemGroup>

src/Managing.Workers/Program.cs

@@ -6,6 +6,10 @@ using Managing.Infrastructure.Databases.PostgreSql;
 using Managing.Infrastructure.Databases.PostgreSql.Configurations;
 using Microsoft.EntityFrameworkCore;
 using Npgsql;
+using OpenTelemetry.Logs;
+using OpenTelemetry.Metrics;
+using OpenTelemetry.Resources;
+using OpenTelemetry.Trace;
 
 // Explicitly set the environment before creating the host builder
 var environment = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") 
@@ -71,6 +75,44 @@ var host = hostBuilder
             options.Environment = hostContext.HostingEnvironment.EnvironmentName;
         });
 
+        // Configure OpenTelemetry for Rider integration (Development only)
+        // Rider automatically sets OTEL_EXPORTER_OTLP_ENDPOINT when running from IDE
+        if (hostContext.HostingEnvironment.IsDevelopment())
+        {
+            var serviceName = "Managing.Workers";
+            var serviceVersion = typeof(Program).Assembly.GetName().Version?.ToString() ?? "1.0.0";
+            var otlpWorkerId = configuration["BacktestComputeWorker:WorkerId"] ?? Environment.MachineName;
+            
+            services.AddOpenTelemetry()
+                .ConfigureResource(resource => resource
+                    .AddService(serviceName, serviceVersion: serviceVersion)
+                    .AddAttributes(new Dictionary<string, object>
+                    {
+                        ["deployment.environment"] = hostContext.HostingEnvironment.EnvironmentName,
+                        ["worker.id"] = otlpWorkerId
+                    }))
+                .WithMetrics(metrics =>
+                {
+                    metrics
+                        .AddRuntimeInstrumentation() // GC, thread pool, etc.
+                        .AddMeter("Microsoft.AspNetCore.Hosting")
+                        .AddMeter("Microsoft.AspNetCore.Server.Kestrel")
+                        .AddMeter("System.Net.Http")
+                        .AddOtlpExporter(); // OTLP exporter for Rider integration
+                })
+                .WithTracing(tracing =>
+                {
+                    tracing
+                        .AddHttpClientInstrumentation() // HTTP client calls
+                        .AddSource("Managing.Workers") // Custom activity source
+                        .AddSource("Managing.Application.Workers") // Worker activities
+                        .AddOtlpExporter(); // OTLP exporter for Rider integration
+                });
+            
+            // Note: OTLP exporter will use OTEL_EXPORTER_OTLP_ENDPOINT from Rider or environment
+            // Rider automatically sets this when running from IDE, so data will be sent to Rider's OpenTelemetry service
+        }
+
         // Configure database
         var postgreSqlConnectionString = configuration.GetSection(Constants.Databases.PostgreSql)["ConnectionString"];
 
@@ -172,6 +214,18 @@ var host = hostBuilder
         logging.AddConsole();
         logging.AddConfiguration(hostingContext.Configuration.GetSection("Logging"));
         
+        // Add OpenTelemetry logging for Rider integration (Development only)
+        if (hostingContext.HostingEnvironment.IsDevelopment())
+        {
+            logging.AddOpenTelemetry(options =>
+            {
+                options.IncludeFormattedMessage = true;
+                options.IncludeScopes = true;
+                options.ParseStateValues = true;
+                options.AddOtlpExporter(); // Uses OTEL_EXPORTER_OTLP_ENDPOINT from Rider or environment
+            });
+        }
+        
         // Filter out EF Core database command logs (SQL queries)
         logging.AddFilter("Microsoft.EntityFrameworkCore.Database.Command", LogLevel.Warning);
     })