namespace fis.Vid
{
  public  class ThirdPartVidDisplayEngine : IDisplayEngine
    {
        private readonly VinnoImageData _imageData;

        public int ImageCount { get; }

        public byte[] BasicData { get; }
        
        public byte[] ExtendedData { get; }
        public ThirdPartVidDisplayEngine(string filePath)
        {
            _imageData = new VinnoImageData(filePath, OperationMode.Open);
            if (_imageData != null && _imageData.ImageCount>0)
            {
                ImageCount = _imageData.ImageCount;
                BasicData = _imageData.Probe.ToBytes();
                ExtendedData = _imageData.ExtendedData;
            }
        }

        public void Close()
        {
            _imageData.Dispose();
        }

        public byte[] GetImageData(int index)
        {
            if (_imageData.ImageCount > index)
            {
                var vinnoImage = _imageData.GetImage(index);
                if (vinnoImage != null)
                {
                    return vinnoImage.ToBytes();
                }
            }
            return new byte[0];
        }
    }
}