namespace DispenserCommon.Utils;

/// <summary>
/// 缓冲队列
/// </summary>
public class BufferQueue<T>(int capacity)
{
    private readonly Queue<T?> _queue = new();
    private readonly int _capacity = Math.Min(capacity, 10);
    private readonly object _lock = new();

    // 尝试添加元素到队列中
    public bool TryEnqueue(T? item)
    {
        lock (_lock)
        {
            if (_queue.Count >= _capacity) return false;
            _queue.Enqueue(item);
            return true;
        }
    }

    // 尝试从队列中移除并返回元素
    public bool TryDequeue(out T? result)
    {
        lock (_lock)
        {
            if (_queue.Count > 0)
            {
                result = _queue.Dequeue();
                return true;
            }

            result = default(T);
            return false;
        }
    }

    // 获取当前队列中的元素数量
    public int Count
    {
        get
        {
            lock (_lock)
            {
                return _queue.Count;
            }
        }
    }
}