add root step id in the response of a create tactic request

API/Controllers/TacticsController.cs

@@ -74,7 +74,7 @@ public class TacticController(ITacticService service, IContextAccessor accessor)
         [AllowedValues("PLAIN", "HALF")] string CourtType
     );
 
-    public record CreateNewResponse(int Id);
+    public record CreateNewResponse(int Id, int RootStepId);
 
     [HttpPost("/tactics")]
     [Authorize]
@@ -88,8 +88,8 @@ public class TacticController(ITacticService service, IContextAccessor accessor)
             throw new ArgumentOutOfRangeException("for req.CourtType");
         }
 
-        var id = await service.AddTactic(userId, req.Name, courtType);
-        return new CreateNewResponse(id);
+        var (id, rootId) = await service.AddTactic(userId, req.Name, courtType);
+        return new CreateNewResponse(id, rootId);
     }
 
     public record AddStepRequest(int ParentId, object Content);

DbServices/DbTacticService.cs

@@ -27,7 +27,7 @@ public class DbTacticService(AppContext.AppContext context) : ITacticService
         return tacticEntity.OwnerId == userId;
     }
 
-    public async Task<int> AddTactic(int userId, string name, CourtType courtType)
+    public async Task<(int, int)> AddTactic(int userId, string name, CourtType courtType)
     {
         var tacticEntity = new TacticEntity
         {
@@ -49,7 +49,7 @@ public class DbTacticService(AppContext.AppContext context) : ITacticService
         await context.SaveChangesAsync();
 
         
-        return tacticEntity.Id;
+        return (tacticEntity.Id, stepEntity.Id);
     }
 
     public async Task<bool> UpdateName(int tacticId, string name)

Services/ITacticService.cs

@@ -29,7 +29,7 @@ public interface ITacticService
     /// <param name="name">The name of the tactic.</param>
     /// <param name="courtType">The type of court.</param>
     /// <returns>A task that represents the asynchronous operation. The task result contains the ID of the newly added tactic.</returns>
-    Task<int> AddTactic(int userId, string name, CourtType courtType);
+    Task<(int, int)> AddTactic(int userId, string name, CourtType courtType);
 
     /// <summary>
     /// Updates the name of the specified tactic.

UnitTests/TacticsControllerTest.cs

@@ -71,7 +71,7 @@ public class TacticsControllerTest
     {
         var (controller, context) = GetController(1);
         var result = await controller.CreateNew(new("Test Tactic", "pLaIn"));
-        result.Should().BeEquivalentTo(new TacticController.CreateNewResponse(2));
+        result.Should().BeEquivalentTo(new TacticController.CreateNewResponse(2, 2));
         var tactic = await context.Tactics.FirstOrDefaultAsync(e => e.Id == 2);
         tactic.Should().NotBeNull();
         tactic!.Name.Should().BeEquivalentTo("Test Tactic");