using System;
using System.Linq;

namespace ScreenConnect;

[Serializable]
public class HardwareAddress
{
	public static readonly HardwareAddress None = new HardwareAddress();

	private string? toStringCache;

	public byte[] Bytes { get; }

	public HardwareAddress(byte[]? bytes)
	{
		Bytes = bytes ?? Extensions.EmptyArray<byte>();
	}

	public HardwareAddress()
		: this(null)
	{
	}

	public override string ToString()
	{
		return toStringCache ?? (toStringCache = (from _ in Bytes.SafeEnumerate()
			select _.ToString("X2")).Join(':'));
	}
}