using PCSC;
using PCSC.Iso7816;
using NFC.Interfaces;
using NFC;
using System;

namespace NFC_PCSC
{
    public class Card_PCSC : ICard
    {
        private IsoReader _ISOReader;
        private string _ReaderID;

        public Card_PCSC(IsoReader isoreader, string readerID)
        {
            _ISOReader = isoreader;
            _ReaderID = readerID;
        }
        public void Connect()
        {
            _ISOReader.Connect(_ReaderID, SCardShareMode.Shared, SCardProtocol.Any);
        }

        public void Disconnect()
        {
            _ISOReader.Disconnect(SCardReaderDisposition.Eject);
        }

        public APDUResponse Transmit(APDUCommand apdu_cmd)
        {
            Response response = _ISOReader.Transmit(Convert(apdu_cmd));
            return Convert(response);
        }

        public CommandApdu Convert(APDUCommand apdu_cmd)
        {
            throw new NotImplementedException();
            return new CommandApdu(ConvertISOCase(apdu_cmd.Case), SCardProtocol.Any)
            {

            };
        }

        public PCSC.Iso7816.IsoCase ConvertISOCase(NFC.IsoCase isoCase)
        {
            switch(isoCase)
            {
                case NFC.IsoCase.Case1:
                    return PCSC.Iso7816.IsoCase.Case1;
                case NFC.IsoCase.Case2Short:
                    return PCSC.Iso7816.IsoCase.Case2Short;
                case NFC.IsoCase.Case3Short:
                    return PCSC.Iso7816.IsoCase.Case3Short;
                case NFC.IsoCase.Case4Short:
                    return PCSC.Iso7816.IsoCase.Case4Short;
                default:
                    throw new Exception("Unknown IsoCase");
            }
        }

        public APDUResponse Convert(Response response)
        {
            ResponseApdu responseApdu = response.Get(0);

            APDUResponse apduResponse = new APDUResponse()
            {
                SW1 = responseApdu.SW1,
                SW2 = responseApdu.SW2,
                Body = responseApdu.GetData()
            };

            return apduResponse;
        }
    }
}