/*
 * Copyright (c) 2023 Proton AG
 *
 * This file is part of ProtonVPN.
 *
 * ProtonVPN is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * ProtonVPN is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with ProtonVPN.  If not, see <https://www.gnu.org/licenses/>.
 */

using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;

namespace ProtonVPN.Common.Legacy.Collections.Concurrent;

public class ConcurrentHashSet<T>
{
    private readonly ConcurrentDictionary<T, bool> _dictionary = new();

    public bool TryAdd(T item)
    {
        return _dictionary.TryAdd(item, true);
    }

    public List<T> ToList()
    {
        return _dictionary.Keys.ToList();
    }

    public void Clear()
    {
        _dictionary.Clear();
    }
}