using System;
using System.Collections.Generic;

namespace Asb.Base.V2;

public class SysAuthenticatorClientCache : SynchronizedKeyedCollection<Guid, SystemAuthenticationClientAuthentication>
{
	private static readonly SysAuthenticatorClientCache clientConnections = new SysAuthenticatorClientCache();

	private static object cacheLockObject = new object();

	private SysAuthenticatorClientCache()
	{
	}

	public static IEnumerable<SystemAuthenticationClientAuthentication> GetAllClientAuthenticators()
	{
		List<SystemAuthenticationClientAuthentication> list = new List<SystemAuthenticationClientAuthentication>();
		lock (cacheLockObject)
		{
			list.AddRange(clientConnections.Items);
			return list;
		}
	}

	public static void AddClientAuthenticator(SystemAuthenticationClientAuthentication clientAuthenticator)
	{
		if (clientAuthenticator == null)
		{
			return;
		}
		lock (cacheLockObject)
		{
			if (!clientConnections.Contains(clientAuthenticator.ConnectionId))
			{
				clientConnections.Add(clientAuthenticator);
			}
		}
	}

	public static SystemAuthenticationClientAuthentication GetClientAuthenticator(Guid connectionId)
	{
		SystemAuthenticationClientAuthentication result = null;
		lock (cacheLockObject)
		{
			if (clientConnections.Contains(connectionId))
			{
				result = clientConnections[connectionId];
			}
		}
		return result;
	}

	public static SystemAuthenticationClientAuthentication RemoveClientAuthenticator(Guid connectionId)
	{
		SystemAuthenticationClientAuthentication result = null;
		lock (cacheLockObject)
		{
			if (clientConnections.Contains(connectionId))
			{
				result = clientConnections[connectionId];
				clientConnections.Remove(connectionId);
			}
		}
		return result;
	}

	protected override Guid GetKeyForItem(SystemAuthenticationClientAuthentication item)
	{
		return item.ConnectionId;
	}
}