namespace Zcbot.WindowsNode;

internal static class AtomicFile
{
    internal static void Write(string path, byte[] content, bool overwrite)
    {
        Directory.CreateDirectory(Path.GetDirectoryName(path)!);
        var temporaryPath = path + ".tmp-" + Guid.NewGuid().ToString("N");
        try
        {
            using (var stream = new FileStream(
                temporaryPath,
                FileMode.CreateNew,
                FileAccess.Write,
                FileShare.None,
                bufferSize: 4096,
                FileOptions.WriteThrough))
            {
                stream.Write(content);
                stream.Flush(flushToDisk: true);
            }
            File.Move(temporaryPath, path, overwrite);
        }
        finally
        {
            if (File.Exists(temporaryPath))
            {
                File.Delete(temporaryPath);
            }
        }
    }
}