public static class Extensions
{
	public static readonly string[] SizeSuffixes = { "bytes", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };

	public static string AppendSizeSuffix(this Int64 value, int decimalPlaces = 0)
	{
		if (value < 0) { return "-" + AppendSizeSuffix(-value); }
		if (value == 0) { return "0.0 bytes"; }

		int mag = (int)Math.Log(value, 1024);
		decimal adjustedSize = (decimal)value / (1L << (mag * 10));
		if (Math.Round(adjustedSize, decimalPlaces) >= 1000)
		{
			mag += 1;
			adjustedSize /= 1024;
		}

		var rounded = string.Format("{0:n" + decimalPlaces + "}", adjustedSize);
		return $"{rounded} {SizeSuffixes[mag]}";
	}
}