ApplicationLevelInformation.cs

using System.Globalization;
 
namespace NeuroAccess.Nfc.TravelDocuments.DataObjects
{
    public class ApplicationLevelInformation : NestedDataObject
    {
        public ApplicationLevelInformation()
            : base([])
        {
        }
 
        public ApplicationLevelInformation(byte[] Value, int LdsMajorVersion,
            int LdsMinorVersion, int UnicodeMajorVersion, int UnicodeMinorVersion,
            TagList? TagList)
            : base(Value)
        {
            this.LdsMajorVersion = LdsMajorVersion;
            this.LdsMinorVersion = LdsMinorVersion;
            this.UnicodeMajorVersion = UnicodeMajorVersion;
            this.UnicodeMinorVersion = UnicodeMinorVersion;
            this.TagList = TagList;
        }
 
        public override ushort Tag => 0x60;
 
        public int LdsMajorVersion { get; }
 
        public int LdsMinorVersion { get; }
 
        public int UnicodeMajorVersion { get; }
 
        public int UnicodeMinorVersion { get; }
 
        public TagList? TagList { get; }
 
        public override IDataObject Create(byte[] Value, IDataObject[] Inner, TravelDocumentsClient Client)
        {
            LdsVersionNumber? LdsVersion = null;
            UnicodeVersionNumber? UnicodeVersion = null;
            TagList? TagList = null;
 
            foreach (IDataObject SubGroup in Inner)
            {
                if (SubGroup is LdsVersionNumber LdsVersion2)
                    LdsVersion = LdsVersion2;
                else if (SubGroup is UnicodeVersionNumber UnicodeVersion2)
                    UnicodeVersion = UnicodeVersion2;
                else if (SubGroup is TagList TagList2)
                    TagList = TagList2;
                else
                {
                    Client.Warning("Unknown application level information tag: " + SubGroup.Tag.ToString("X4", CultureInfo.InvariantCulture));
                    break;
                }
            }
 
            return new ApplicationLevelInformation(Value, LdsVersion?.MajorVersion ?? 0,
                LdsVersion?.MinorVersion ?? 0, UnicodeVersion?.MajorVersion ?? 0,
                UnicodeVersion?.MinorVersion ?? 0, TagList);
        }
 
        public bool HasAtLeastLdsVersion(int Major, int Minor)
        {
            return this.LdsMajorVersion > Major ||
                (this.LdsMajorVersion == Major && this.LdsMinorVersion >= Minor);
        }
    }
}