/// <summary>
///
/// </summary>
/// <returns></returns>
private static string GetTime(string expr, bool roundUp)
{
if (string.IsNullOrEmpty(expr))
{
return(string.Empty);
}
if (DateTimeMathParser.IsDateTime(expr, out DateTime date))
{
return(ToUnixTimeMilliseconds(date));
}
if (expr == DateTimeMathParser.NOW)
{
return(NOW);
}
var parts = Regex.Split(expr, @"^now-(\d+)([dhms])$");
if (parts?.Length > 2)
{
int.TryParse(parts [1], out int amount);
var unit = parts [2];
return($"{NOW} - {amount}{unit}");
}
var res = DateTimeMathParser.ToDateTime(expr, roundUp);
return(res.HasValue ? ToUnixTimeMilliseconds(res.Value) : string.Empty);
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public static string GetGroupBy(Time.Range r)
{
var from = DateTimeMathParser.ToDateTime(r.From, false);
var to = DateTimeMathParser.ToDateTime(r.To, true);
return((from.HasValue && to.HasValue) ? GetGroupBy(from.Value, to.Value) : "1m");
}