using TestWeb.Infra;
using TestWeb.Utils;

namespace TestWeb.Core.Users;

public static class UpdateUserEndpoint
{
    public record Request(string DisplayName);

    public class RequestValidator : AbstractValidator<Request>
    {
        public RequestValidator()
        {
            RuleFor(x => x.DisplayName).NotEmpty().MaximumLength(250);
        }
    }

    public static async Task<Results<Ok, NotFound>> Handle(
        int id,
        Request request,
        AppDbContext db,
        CancellationToken ct)
    {
        var result = await db.Users
            .Where(x => x.Id == id)
            .SingleOrDefaultAsync(ct);

        if (result == null)
        {
            return TypedResults.NotFound();
        }

        result.DisplayName = request.DisplayName;
        result.LastUpdated = DateTime.UtcNow;

        await db.SaveChangesAsync(ct);

        return TypedResults.Ok();
    }
}