Added updating user names

Users/Resources/UpdateNameResource.cs

@@ -0,0 +1,6 @@
+namespace TNRD.Zeepkist.GTR.Backend.Users.Resources;
+
+public class UpdateNameResource
+{
+    public string Name { get; set; } = null!;
+}

Users/UserController.cs

@@ -0,0 +1,36 @@
+using System.Security.Claims;
+using Microsoft.AspNetCore.Mvc;
+using TNRD.Zeepkist.GTR.Backend.Jwt;
+using TNRD.Zeepkist.GTR.Backend.Users.Resources;
+
+namespace TNRD.Zeepkist.GTR.Backend.Users;
+
+[ApiController]
+[Route("user")]
+public class UserController : ControllerBase
+{
+    private readonly IUserService _userService;
+
+    public UserController(IUserService userService)
+    {
+        _userService = userService;
+    }
+
+    [HttpPost("update/name")]
+    public IActionResult UpdateName([FromBody] UpdateNameResource resource)
+    {
+        string? value = User.FindFirstValue(IJwtService.SteamIdClaimName);
+        if (string.IsNullOrEmpty(value))
+        {
+            return Unauthorized();
+        }
+
+        if (!ulong.TryParse(value, out ulong steamId))
+        {
+            return Unauthorized();
+        }
+
+        _userService.UpdateName(steamId, resource.Name);
+        return Ok();
+    }
+}

Users/UserService.cs

@@ -10,6 +10,7 @@ public interface IUserService
     IEnumerable<User> GetAll();
     bool TryGet(int id, [NotNullWhen(true)] out User? user);
     bool TryGet(ulong steamId, [NotNullWhen(true)] out User? user);
+    void UpdateName(ulong steamId, string name);
 }
 
 public class UserService : IUserService
@@ -53,4 +54,16 @@ public bool TryGet(ulong steamId, [NotNullWhen(true)] out User? user)
         user = _repository.GetSingle(x => x.SteamId == steamId);
         return user != null;
     }
+
+    public void UpdateName(ulong steamId, string name)
+    {
+        User? user = _repository.GetSingle(x => x.SteamId == steamId);
+        if (user == null)
+        {
+            return;
+        }
+
+        user.SteamName = name;
+        _repository.Update(user);
+    }
 }