Add genetic grain

src/Managing.Application/Bots/Grains/BacktestTradingBotGrain.cs

@@ -64,7 +64,7 @@ public class BacktestTradingBotGrain : Grain, IBacktestTradingBotGrain
 
         // Create a fresh TradingBotBase instance for this backtest
         var tradingBot = await CreateTradingBotInstance(config);
-        tradingBot.Account = user.Accounts.First(a => a.Name == config.AccountName);
+        tradingBot.Account = user.Accounts.First();
 
         var totalCandles = candles.Count;
         var currentCandle = 0;

src/Managing.Application/GeneticService.cs

@@ -1,5 +1,6 @@
 using System.Text.Json;
 using GeneticSharp;
+using Managing.Application.Abstractions.Grains;
 using Managing.Application.Abstractions.Repositories;
 using Managing.Application.Abstractions.Services;
 using Managing.Core;
@@ -26,6 +27,7 @@ public class GeneticService : IGeneticService
     private readonly ILogger<GeneticService> _logger;
     private readonly IMessengerService _messengerService;
     private readonly IServiceScopeFactory _serviceScopeFactory;
+    private readonly IGrainFactory _grainFactory;
 
     // Predefined parameter ranges for each indicator (matching backtestGenetic.tsx)
     public static readonly Dictionary<string, (double min, double max)> ParameterRanges = new()
@@ -193,13 +195,15 @@ public class GeneticService : IGeneticService
         IBacktester backtester,
         ILogger<GeneticService> logger,
         IMessengerService messengerService,
-        IServiceScopeFactory serviceScopeFactory)
+        IServiceScopeFactory serviceScopeFactory,
+        IGrainFactory grainFactory)
     {
         _geneticRepository = geneticRepository;
         _backtester = backtester;
         _logger = logger;
         _messengerService = messengerService;
         _serviceScopeFactory = serviceScopeFactory;
+        _grainFactory = grainFactory;
     }
 
     public GeneticRequest CreateGeneticRequest(
@@ -240,6 +244,18 @@ public class GeneticService : IGeneticService
         };
 
         _geneticRepository.InsertGeneticRequestForUser(user, geneticRequest);
+
+        // Trigger Orleans grain to process this request asynchronously
+        try
+        {
+            var grain = _grainFactory.GetGrain<IGeneticBacktestGrain>(id);
+            _ = grain.ProcessGeneticRequestAsync();
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(ex, "Failed to trigger GeneticBacktestGrain for request {RequestId}", id);
+        }
+
         return geneticRequest;
     }
 
@@ -888,7 +904,7 @@ public class TradingBotFitness : IFitness
             // Run backtest using scoped service to avoid DbContext concurrency issues
             var lightBacktest = ServiceScopeHelpers.WithScopedService<IBacktester, LightBacktest>(
                 _serviceScopeFactory,
-                backtester => backtester.RunTradingBotBacktest(
+                async backtester => await backtester.RunTradingBotBacktest(
                     config,
                     _request.StartDate,
                     _request.EndDate,
@@ -896,12 +912,9 @@ public class TradingBotFitness : IFitness
                     true,
                     false, // Don't include candles
                     _request.RequestId,
-                    new
-                    {
-                        generation = currentGeneration
-                    }
+                    new GeneticBacktestMetadata(currentGeneration, _request.RequestId)
                 )
-            ).Result;
+            ).GetAwaiter().GetResult();
 
             // Calculate multi-objective fitness based on backtest results
             var fitness = CalculateFitness(lightBacktest, config);
@@ -912,7 +925,7 @@ public class TradingBotFitness : IFitness
         {
             _logger.LogWarning("Fitness evaluation failed for chromosome: {Message}", ex.Message);
             // Return low fitness for failed backtests
-            return 0.1;
+            return 0;
         }
     }
 

src/Managing.Application/Grains/GeneticBacktestGrain.cs

@@ -0,0 +1,90 @@
+using Managing.Application.Abstractions.Grains;
+using Managing.Application.Abstractions.Services;
+using Managing.Core;
+using Managing.Domain.Accounts;
+using Managing.Domain.Backtests;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using Orleans.Concurrency;
+
+namespace Managing.Application.Grains;
+
+/// <summary>
+/// Stateless worker grain for processing genetic backtest requests.
+/// Uses the genetic request ID (string) as the primary key.
+/// </summary>
+[StatelessWorker]
+public class GeneticBacktestGrain : Grain, IGeneticBacktestGrain
+{
+    private readonly ILogger<GeneticBacktestGrain> _logger;
+    private readonly IServiceScopeFactory _scopeFactory;
+
+    public GeneticBacktestGrain(
+        ILogger<GeneticBacktestGrain> logger,
+        IServiceScopeFactory scopeFactory)
+    {
+        _logger = logger;
+        _scopeFactory = scopeFactory;
+    }
+
+    public async Task ProcessGeneticRequestAsync()
+    {
+        var requestId = this.GetPrimaryKeyString();
+
+        try
+        {
+            using var scope = _scopeFactory.CreateScope();
+            var geneticService = scope.ServiceProvider.GetRequiredService<IGeneticService>();
+
+            // Load the request by status lists and filter by ID (Pending first, then Failed for retries)
+            var pending = await geneticService.GetGeneticRequestsAsync(GeneticRequestStatus.Pending);
+            var failed = await geneticService.GetGeneticRequestsAsync(GeneticRequestStatus.Failed);
+            var request = pending.Concat(failed).FirstOrDefault(r => r.RequestId == requestId);
+
+            if (request == null)
+            {
+                _logger.LogWarning("[GeneticBacktestGrain] Request {RequestId} not found among pending/failed.",
+                    requestId);
+                return;
+            }
+
+            // Mark running
+            request.Status = GeneticRequestStatus.Running;
+            await geneticService.UpdateGeneticRequestAsync(request);
+
+            request.User.Accounts = await ServiceScopeHelpers.WithScopedService<IAccountService, List<Account>>(_scopeFactory,
+                async accountService => (await accountService.GetAccountsByUserAsync(request.User)).ToList());
+
+            // Run GA
+            var result = await geneticService.RunGeneticAlgorithm(request, CancellationToken.None);
+
+            // Update final state
+            request.Status = GeneticRequestStatus.Completed;
+            request.CompletedAt = DateTime.UtcNow;
+            request.BestFitness = result.BestFitness;
+            request.BestIndividual = result.BestIndividual;
+            request.ProgressInfo = result.ProgressInfo;
+            await geneticService.UpdateGeneticRequestAsync(request);
+
+            _logger.LogInformation("[GeneticBacktestGrain] Completed request {RequestId}", requestId);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "[GeneticBacktestGrain] Error processing request {RequestId}", requestId);
+            try
+            {
+                using var scope = _scopeFactory.CreateScope();
+                var geneticService = scope.ServiceProvider.GetRequiredService<IGeneticService>();
+                var running = await geneticService.GetGeneticRequestsAsync(GeneticRequestStatus.Running);
+                var req = running.FirstOrDefault(r => r.RequestId == requestId) ?? new GeneticRequest(requestId);
+                req.Status = GeneticRequestStatus.Failed;
+                req.ErrorMessage = ex.Message;
+                req.CompletedAt = DateTime.UtcNow;
+                await geneticService.UpdateGeneticRequestAsync(req);
+            }
+            catch
+            {
+            }
+        }
+    }
+}