using System.Threading.Channels;
using FellowOakDicom;
using FellowOakDicom.Imaging;
using SixLabors.ImageSharp;

namespace DcmToPng.Helper
{
    public class DcmToPngHelper
    {
        public static void Convert()
        {
            new DicomSetupBuilder()
                .RegisterServices(s => s.AddFellowOakDicom().AddImageManager<ImageSharpImageManager>())
                .Build();

            if (!Directory.Exists(Constant.ImgPath))
                Directory.CreateDirectory(Constant.ImgPath);
            var dicomFiles = Directory.GetFiles(Constant.DcmPath, "*.dcm"); // 获取所有.dcm
            Console.WriteLine("[待转换的DCM文件]" + dicomFiles.Length);
            int i=0;
            foreach (var filePath in dicomFiles)
            {
                try
                {
                    if (File.Exists(Path.GetFileNameWithoutExtension(filePath) + ".png"))
                        continue;
                    var image = new DicomImage(filePath);
                    var bitmap = image.RenderImage().AsSharpImage();
                    string outputPath = Path.Combine(Constant.ImgPath, Path.GetFileNameWithoutExtension(filePath) + ".png");
                    bitmap.SaveAsJpeg(outputPath);
                    File.Delete(filePath);
                    i++;
                }
                catch (Exception e)
                {
                    Console.WriteLine("[Convert]" + e.Message);
                }
            }
            Console.WriteLine("[转换成功]" + i);
        }
    }
}