feat: add Logs

application/Users/Commands/UnassignUserRole.cs

@@ -0,0 +1,34 @@
+using MediatR;
+using mws.backend.dotnet.application.Audit;
+using mws.backend.dotnet.application.Common;
+using mws.backend.dotnet.application.Permissions;
+
+namespace mws.backend.dotnet.application.Users;
+
+public record UnassignUserRoleCommand(Guid ActorUserId, Guid TargetUserId, Guid RoleId) : IRequest, IAuditableRequest
+{
+    public string Action => "User.UnassignRole";
+    public string EntityType => "User";
+    public Guid? EntityId => TargetUserId;
+}
+
+public class UnassignUserRoleHandler(IUnitOfWork uow, IPermissionService permissions, IAuditContext auditContext)
+    : IRequestHandler<UnassignUserRoleCommand>
+{
+    public async Task Handle(UnassignUserRoleCommand command, CancellationToken ct)
+    {
+        await permissions.EnsureAsync(command.ActorUserId, "permissions", PermissionAction.Edit, ct);
+
+        var user = await uow.Users.GetByIdWithRoleAsync(command.TargetUserId, ct)
+            ?? throw new NotFoundException("User not found");
+
+        var userRole = user.UserRoles.FirstOrDefault(ur => ur.RoleId == command.RoleId);
+        if (userRole is not null)
+        {
+            user.UserRoles.Remove(userRole);
+            await uow.SaveChangesAsync(ct);
+        }
+
+        auditContext.EntityName = user.Username;
+    }
+}