// Domain
public record User(Guid Id, string Name, string Password, DateTime CreatedAt);

// Public API
public record UserViewModel(Guid Id, string Name);
public record LoginViewModel(string Name, string Password);

public record LoginRequest(string Name, string Password, IPAddress IP, string UserAgent);
public record RequestInfo(IPAddress IP, string UserAgent);

[ApiController]
[Route("users")]
public class UserController : ControllerBase
{
    private readonly ILogger<UserController> _logger;
    private readonly UserService _userService;

    public UserController(ILogger<UserController> logger, UserService userService)
    {
        _logger = logger;
        _userService = userService;
    }

    [HttpPost("login")]
    public async Task<UserViewModel> Login([FromBody] LoginViewModel viewModel)
    {
        IPAddress ip = Request.HttpContext.Connection.RemoteIpAddress!;
        string userAgent = HttpContext.Request.Headers[HeaderNames.UserAgent].ToString();

        // Вариант 1
        LoginRequest request = new LoginRequest(viewModel.Name, viewModel.Password, ip, userAgent);
        UserViewModel userV1 = await _userService.Login(request);

        // Вариант 2
        RequestInfo info = new RequestInfo(ip, userAgent);
        UserViewModel userV2 = await _userService.Login(viewModel, info);

        return userV1;
    }
}

public class UserService
{
    // Вариант 1
    public async Task<UserViewModel> Login(LoginRequest request)
    {
        User user = new User(Guid.CreateVersion7(), request.Name, request.Password, DateTime.UtcNow);
        return await Task.FromResult(new UserViewModel(user.Id, user.Name));
    }

    // Вариант 2
    public async Task<UserViewModel> Login(LoginViewModel viewModel, RequestInfo info)
    {
        User user = new User(Guid.CreateVersion7(), viewModel.Name, viewModel.Password, DateTime.UtcNow);
        return await Task.FromResult(new UserViewModel(user.Id, user.Name));
    }
}