using System;
using System.Collections;
using Org.BouncyCastle.Utilities;

namespace Org.BouncyCastle.Asn1;

public class Asn1EncodableVector : IEnumerable
{
	private IList v = Platform.CreateArrayList();

	public Asn1Encodable this[int index] => (Asn1Encodable)v[index];

	[Obsolete("Use 'Count' property instead")]
	public int Size => v.Count;

	public int Count => v.Count;

	public static Asn1EncodableVector FromEnumerable(IEnumerable e)
	{
		Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector();
		foreach (Asn1Encodable item in e)
		{
			asn1EncodableVector.Add(item);
		}
		return asn1EncodableVector;
	}

	public Asn1EncodableVector(params Asn1Encodable[] v)
	{
		Add(v);
	}

	public void Add(params Asn1Encodable[] objs)
	{
		foreach (Asn1Encodable value in objs)
		{
			v.Add(value);
		}
	}

	public void AddOptional(params Asn1Encodable[] objs)
	{
		if (objs == null)
		{
			return;
		}
		foreach (Asn1Encodable asn1Encodable in objs)
		{
			if (asn1Encodable != null)
			{
				v.Add(asn1Encodable);
			}
		}
	}

	[Obsolete("Use 'object[index]' syntax instead")]
	public Asn1Encodable Get(int index)
	{
		return this[index];
	}

	public IEnumerator GetEnumerator()
	{
		return v.GetEnumerator();
	}
}