using System;

namespace NBTModel.Interop
{
    public static class NbtClipboardController
    {
        private static INbtClipboardController _instance;

        public static void Initialize (INbtClipboardController controller)
        {
            _instance = controller;
        }

        public static bool IsInitialized
        {
            get { return _instance != null; }
        }

        public static bool ContainsData
        {
            get 
            {
                if (_instance == null)
                    return false;
                return _instance.ContainsData; 
            }
        }

        public static NbtClipboardData CopyFromClipboard ()
        {
            if (_instance == null)
                return null;
            return _instance.CopyFromClipboard();
        }

        public static void CopyToClipboard (NbtClipboardData data)
        {
            if (_instance == null)
                return;
            _instance.CopyToClipboard(data);
        }
    }

    public interface INbtClipboardController
    {
        bool ContainsData { get; }

        void CopyToClipboard (NbtClipboardData data);
        NbtClipboardData CopyFromClipboard ();
    }
}