Medusa.net/Medusa.Core/Handlers/Common/Card/ConvCardnNumberSystem3Handler.cs

using Medusa.Core.Attributes;
using Medusa.Core.Services;
using System.Xml.Linq;

namespace Medusa.Core.Handlers.Common.Card
{
    [Handler("system_3", "convcardnumber")]
    public class ConvCardnNumberSystem3(ICardService cardService, XDocument body) : IHandler
    {
        private readonly ICardService _cardService = cardService;

        public Task<XDocument> HandleAsync(string model)
        {
            var root = body.Root;
            var systemElement = root.Element("system_3");
            var data = systemElement.Element("data");
            var cardIdElement = data.Element("card_id").Value;
            var cardId = cardIdElement;
            var cardNumber = _cardService.ConvertUidToKonamiId(cardId);

            var system = new XElement("system",
                    new XAttribute("status", "0"),
                    new XElement("result",
                        new XAttribute("__type", "s32"),
                        0
                    ),
                    new XElement("data",
                        new XElement("card_number", cardNumber)));

            var document = new XDocument(
                new XElement("response",
                    system
                )
            );

            return Task.FromResult(document);
        }
    }
}