ExtendedRead.cs

using System;
using System.Text;
using OSDP.Net.Messages;
using OSDP.Net.Messages.SecureChannel;
 
namespace OSDP.Net.Model.ReplyData
{
    public class ExtendedRead : PayloadData
    {
        public ExtendedRead(byte mode, byte pReply, byte[] pData)
        {
            Mode = mode;
            PReply = pReply;
            PData = pData ?? throw new ArgumentNullException(nameof(pData));
        }

        public byte Mode { get; }

        public byte PReply { get; }

        public byte[] PData { get; }

        public override byte Code => (byte)ReplyType.ExtendedRead;

        public override ReadOnlySpan<byte> SecurityControlBlock() => SecurityBlock.ReplyMessageWithDataSecurity;

        public override byte[] BuildData()
        {
            var buffer = new byte[2 + PData.Length];
            buffer[0] = Mode;
            buffer[1] = PReply;
            Array.Copy(PData, 0, buffer, 2, PData.Length);
            return buffer;
        }

        public static ExtendedRead ParseData(ReadOnlySpan<byte> data)
        {
            byte mode = data.Length > 0 ? data[0] : (byte)0;
            byte pReply = data.Length > 1 ? data[1] : (byte)0;
            byte[] pData = data.Length > 2 ? data.Slice(2).ToArray() : [];
            return new ExtendedRead(mode, pReply, pData);
        }

        public static ExtendedRead ModeZeroSettingReport(byte currentMode, bool enabled) =>
            new(0, 1, [currentMode, (byte)(enabled ? 1 : 0)]);

        public static ExtendedRead CardPresent(byte readerNumber) =>
            new(1, 1, [readerNumber]);

        public static ExtendedRead ApduResponse(byte readerNumber, byte[] response)
        {
            if (response == null) throw new ArgumentNullException(nameof(response));
 
            var data = new byte[response.Length + 1];
            data[0] = readerNumber;
            Array.Copy(response, 0, data, 1, response.Length);
            return new ExtendedRead(1, 1, data);
        }

        public static ExtendedRead SessionTerminated(byte readerNumber) =>
            new(1, 2, [readerNumber]);

        public override string ToString()
        {
            var sb = new StringBuilder();
            sb.AppendLine($"  Mode: {Mode}");
            sb.AppendLine($"PReply: {PReply}");
            sb.AppendLine($" PData: {BitConverter.ToString(PData)}");
            return sb.ToString();
        }
    }
}