using System;
using Org.BouncyCastle.Utilities;

namespace Org.BouncyCastle.Asn1.Pkcs;

public class AttributePkcs : Asn1Encodable
{
	private readonly DerObjectIdentifier attrType;

	private readonly Asn1Set attrValues;

	public DerObjectIdentifier AttrType => attrType;

	public Asn1Set AttrValues => attrValues;

	public static AttributePkcs GetInstance(object obj)
	{
		AttributePkcs attributePkcs = obj as AttributePkcs;
		if (obj == null || attributePkcs != null)
		{
			return attributePkcs;
		}
		if (obj is Asn1Sequence seq)
		{
			return new AttributePkcs(seq);
		}
		throw new ArgumentException("Unknown object in factory: " + Platform.GetTypeName(obj), "obj");
	}

	private AttributePkcs(Asn1Sequence seq)
	{
		if (seq.Count != 2)
		{
			throw new ArgumentException("Wrong number of elements in sequence", "seq");
		}
		attrType = DerObjectIdentifier.GetInstance(seq[0]);
		attrValues = Asn1Set.GetInstance(seq[1]);
	}

	public AttributePkcs(DerObjectIdentifier attrType, Asn1Set attrValues)
	{
		this.attrType = attrType;
		this.attrValues = attrValues;
	}

	public override Asn1Object ToAsn1Object()
	{
		return new DerSequence(attrType, attrValues);
	}
}