using System.Diagnostics;

namespace ImageConverter
{
    public static class Magick
    {
        public static void FileConvert(String infile, String outfile)
        {
            ProcessStartInfo psi = new ProcessStartInfo("magick");
            psi.ArgumentList.Add(infile);
            psi.ArgumentList.Add(outfile);
            Process? p = Process.Start(psi);
            if (p==null)
            {
                throw new Exception("Could not launch magick");
            }
            p.WaitForExit();
        }

        public static Byte[] BmpToJpg(this Byte[] bmpbuf)
        {
            String path = Path.GetTempFileName();
            String bmppath = Path.Combine(path, "magicktmp.bmp");
            String jpgpath = Path.Combine(path, "magicktmp.jpg");
            File.Delete(path);
            Directory.CreateDirectory(path);
            File.WriteAllBytes(bmppath, bmpbuf);
            FileConvert(bmppath, jpgpath);
            Byte[] buf = File.ReadAllBytes(jpgpath);
            Directory.Delete(path, true);
            return buf;
        }
    }
}