Add enum for Selection method

src/Managing.Api/Controllers/BacktestController.cs

@@ -306,9 +306,6 @@ public class BacktestController : BaseController
                 request.MaxTakeProfit,
                 request.EligibleIndicators);
 
-            // TODO: Trigger background genetic algorithm execution
-            // This will be implemented in the next step with a background service
-
             return Ok(geneticRequest);
         }
         catch (Exception ex)

src/Managing.Api/Models/Requests/RunGeneticRequest.cs

@@ -50,7 +50,7 @@ public class RunGeneticRequest
     /// <summary>
     /// The selection method to use
     /// </summary>
-    public string SelectionMethod { get; set; } = "tournament";
+    public GeneticSelectionMethod SelectionMethod { get; set; }
 
     /// <summary>
     /// The percentage of elite individuals to preserve (1-50)

src/Managing.Application.Abstractions/Services/IGeneticService.cs

@@ -36,7 +36,7 @@ public interface IGeneticService
         int populationSize,
         int generations,
         double mutationRate,
-        string selectionMethod,
+        GeneticSelectionMethod selectionMethod,
         int elitismPercentage,
         double maxTakeProfit,
         List<IndicatorType> eligibleIndicators);

src/Managing.Application/GeneticService.cs

@@ -203,7 +203,7 @@ public class GeneticService : IGeneticService
         int populationSize,
         int generations,
         double mutationRate,
-        string selectionMethod,
+        GeneticSelectionMethod selectionMethod,
         int elitismPercentage,
         double maxTakeProfit,
         List<IndicatorType> eligibleIndicators)
@@ -422,13 +422,13 @@ public class GeneticService : IGeneticService
         }
     }
 
-    private ISelection GetSelection(string selectionMethod)
+    private ISelection GetSelection(GeneticSelectionMethod selectionMethod)
     {
-        return selectionMethod.ToLower() switch
+        return selectionMethod switch
         {
-            "tournament" => new TournamentSelection(),
+            GeneticSelectionMethod.Tournament => new TournamentSelection(),
-            "roulette" => new RouletteWheelSelection(),
+            GeneticSelectionMethod.Roulette => new RouletteWheelSelection(),
-            "fitness-weighted" => new RankSelection(), // Use rank selection as approximation
+            GeneticSelectionMethod.FitnessWeighted => new RankSelection(), // Use rank selection as approximation
             _ => new TournamentSelection()
         };
     }

src/Managing.Common/Enums.cs

@@ -416,4 +416,14 @@ public static class Enums
         Moderate = 2,
         Aggressive = 3
     }
+
+    /// <summary>
+    /// Selection methods for genetic algorithm optimization
+    /// </summary>
+    public enum GeneticSelectionMethod
+    {
+        Tournament,
+        Roulette,
+        FitnessWeighted
+    }
 }

src/Managing.Domain/Backtests/GeneticRequest.cs

@@ -110,7 +110,7 @@ public class GeneticRequest
     /// The selection method to use
     /// </summary>
     [Required]
-    public string SelectionMethod { get; set; } = "tournament";
+    public GeneticSelectionMethod SelectionMethod { get; set; } = GeneticSelectionMethod.Tournament;
 
     /// <summary>
     /// The percentage of elite individuals to preserve (1-50)

src/Managing.Infrastructure.Database/MongoDb/Collections/GeneticRequestDto.cs

@@ -19,7 +19,7 @@ namespace Managing.Infrastructure.Databases.MongoDb.Collections
         public int PopulationSize { get; set; }
         public int Generations { get; set; }
         public double MutationRate { get; set; }
-        public string SelectionMethod { get; set; }
+        public GeneticSelectionMethod SelectionMethod { get; set; }
         public int ElitismPercentage { get; set; }
         public double MaxTakeProfit { get; set; }
         public List<IndicatorType> EligibleIndicators { get; set; } = new();

src/Managing.WebApp/src/generated/ManagingApi.ts

@@ -3721,7 +3721,7 @@ export interface GeneticRequest {
     populationSize: number;
     generations: number;
     mutationRate: number;
-    selectionMethod: string;
+    selectionMethod: GeneticSelectionMethod;
     elitismPercentage: number;
     maxTakeProfit: number;
     eligibleIndicators: IndicatorType[];
@@ -3743,6 +3743,12 @@ export enum GeneticRequestStatus {
     Cancelled = "Cancelled",
 }
 
+export enum GeneticSelectionMethod {
+    Tournament = "Tournament",
+    Roulette = "Roulette",
+    FitnessWeighted = "FitnessWeighted",
+}
+
 export interface RunGeneticRequest {
     ticker?: Ticker;
     timeframe?: Timeframe;
@@ -3752,7 +3758,7 @@ export interface RunGeneticRequest {
     populationSize?: number;
     generations?: number;
     mutationRate?: number;
-    selectionMethod?: string | null;
+    selectionMethod?: GeneticSelectionMethod;
     elitismPercentage?: number;
     maxTakeProfit?: number;
     eligibleIndicators?: IndicatorType[] | null;

src/Managing.WebApp/src/generated/ManagingApiTypes.ts

@@ -668,7 +668,7 @@ export interface GeneticRequest {
     populationSize: number;
     generations: number;
     mutationRate: number;
-    selectionMethod: string;
+    selectionMethod: GeneticSelectionMethod;
     elitismPercentage: number;
     maxTakeProfit: number;
     eligibleIndicators: IndicatorType[];
@@ -690,6 +690,12 @@ export enum GeneticRequestStatus {
     Cancelled = "Cancelled",
 }
 
+export enum GeneticSelectionMethod {
+    Tournament = "Tournament",
+    Roulette = "Roulette",
+    FitnessWeighted = "FitnessWeighted",
+}
+
 export interface RunGeneticRequest {
     ticker?: Ticker;
     timeframe?: Timeframe;
@@ -699,7 +705,7 @@ export interface RunGeneticRequest {
     populationSize?: number;
     generations?: number;
     mutationRate?: number;
-    selectionMethod?: string | null;
+    selectionMethod?: GeneticSelectionMethod;
     elitismPercentage?: number;
     maxTakeProfit?: number;
     eligibleIndicators?: IndicatorType[] | null;

src/Managing.WebApp/src/pages/backtestPage/backtestGeneticBundle.tsx

@@ -7,6 +7,7 @@ import {
   type Backtest,
   BacktestClient,
   type GeneticRequest,
+  GeneticSelectionMethod,
   IndicatorType,
   type RunGeneticRequest,
   Ticker,
@@ -45,7 +46,7 @@ interface GeneticBundleFormData {
   populationSize: number
   generations: number
   mutationRate: number
-    selectionMethod: string
+  selectionMethod: GeneticSelectionMethod
   elitismPercentage: number
   maxTakeProfit: number
   eligibleIndicators: IndicatorType[]
@@ -75,7 +76,7 @@ const BacktestGeneticBundle: React.FC = () => {
             populationSize: 10,
             generations: 5,
             mutationRate: 0.3,
-            selectionMethod: 'tournament',
+            selectionMethod: GeneticSelectionMethod.Tournament,
             elitismPercentage: 10,
             maxTakeProfit: 2.0,
             eligibleIndicators: ALL_INDICATORS,
@@ -153,7 +154,7 @@ const BacktestGeneticBundle: React.FC = () => {
             setValue('populationSize', 10)
             setValue('generations', 5)
             setValue('mutationRate', 0.3)
-            setValue('selectionMethod', 'tournament')
+            setValue('selectionMethod', GeneticSelectionMethod.Tournament)
             setValue('elitismPercentage', 10)
             setValue('maxTakeProfit', 2.0)
             setSelectedIndicators(ALL_INDICATORS)
@@ -411,9 +412,9 @@ const BacktestGeneticBundle: React.FC = () => {
                   className="select select-bordered w-full" 
                   {...register('selectionMethod')}
                 >
-                                    <option value="tournament">Tournament Selection</option>
+                  <option value={GeneticSelectionMethod.Tournament}>Tournament Selection</option>
-                                    <option value="roulette">Roulette Wheel</option>
+                  <option value={GeneticSelectionMethod.Roulette}>Roulette Wheel</option>
-                                    <option value="fitness-weighted">Fitness Weighted</option>
+                  <option value={GeneticSelectionMethod.FitnessWeighted}>Fitness Weighted</option>
                 </select>
                             </div>