using System;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Utilities;

namespace Org.BouncyCastle.Asn1.Ess;

public class SigningCertificateV2 : Asn1Encodable
{
	private readonly Asn1Sequence certs;

	private readonly Asn1Sequence policies;

	public static SigningCertificateV2 GetInstance(object o)
	{
		if (o == null || o is SigningCertificateV2)
		{
			return (SigningCertificateV2)o;
		}
		if (o is Asn1Sequence)
		{
			return new SigningCertificateV2((Asn1Sequence)o);
		}
		throw new ArgumentException("unknown object in 'SigningCertificateV2' factory : " + Platform.GetTypeName(o) + ".");
	}

	private SigningCertificateV2(Asn1Sequence seq)
	{
		if (seq.Count < 1 || seq.Count > 2)
		{
			throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");
		}
		certs = Asn1Sequence.GetInstance(seq[0].ToAsn1Object());
		if (seq.Count > 1)
		{
			policies = Asn1Sequence.GetInstance(seq[1].ToAsn1Object());
		}
	}

	public SigningCertificateV2(EssCertIDv2 cert)
	{
		certs = new DerSequence(cert);
	}

	public SigningCertificateV2(EssCertIDv2[] certs)
	{
		this.certs = new DerSequence(certs);
	}

	public SigningCertificateV2(EssCertIDv2[] certs, PolicyInformation[] policies)
	{
		this.certs = new DerSequence(certs);
		if (policies != null)
		{
			this.policies = new DerSequence(policies);
		}
	}

	public EssCertIDv2[] GetCerts()
	{
		EssCertIDv2[] array = new EssCertIDv2[certs.Count];
		for (int i = 0; i != certs.Count; i++)
		{
			array[i] = EssCertIDv2.GetInstance(certs[i]);
		}
		return array;
	}

	public PolicyInformation[] GetPolicies()
	{
		if (policies == null)
		{
			return null;
		}
		PolicyInformation[] array = new PolicyInformation[policies.Count];
		for (int i = 0; i != policies.Count; i++)
		{
			array[i] = PolicyInformation.GetInstance(policies[i]);
		}
		return array;
	}

	public override Asn1Object ToAsn1Object()
	{
		Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(certs);
		if (policies != null)
		{
			asn1EncodableVector.Add(policies);
		}
		return new DerSequence(asn1EncodableVector);
	}
}