Files
raven/server/AyaNova/util/DateUtil.cs
2018-12-11 16:09:30 +00:00

71 lines
2.3 KiB
C#

using System;
namespace AyaNova.Util
{
internal static class DateUtil
{
/// <summary>
/// Is the current date after the referenced date by at least the duration specified
/// </summary>
/// <param name="startDate">UTC start point to compare to current UTC date</param>
/// <param name="Hours"></param>
/// <param name="Minutes"></param>
/// <param name="Seconds"></param>
/// <returns></returns>
public static bool IsAfterDuration(DateTime startDate, int Hours, int Minutes = 0, int Seconds = 0)
{
TimeSpan ts = new TimeSpan(Hours, Minutes, Seconds);
return IsAfterDuration(startDate, ts);
}
/// <summary>
/// Is the current date after the referenced date by at least the timespan specified
/// </summary>
/// <param name="startDate">UTC start point to compare to current UTC date</param>
/// <param name="tspan"></param>
/// <returns></returns>
public static bool IsAfterDuration(DateTime startDate, TimeSpan tspan)
{
if (DateTime.UtcNow - startDate < tspan)
return false;
return true;
}
/// <summary>
/// An internally consistent empty or not relevant date marker:
/// January 1st 5555
/// </summary>
/// <returns></returns>
public static DateTime EmptyDateValue
{
get
{
return new DateTime(5555, 1, 1);
//Was going to use MaxValue but apparently that varies depending on culture
// and Postgres has issues with year 1 as it interprets as year 2001
// so to be on safe side just defining one for all usage
}
}
/// <summary>
/// returns a UTC short date, short time formatted date for local display to end user in logs, errors etc at the server level
/// (Not related to UI display of dates and times)
/// </summary>
/// <param name="DateToDisplay"></param>
/// <returns></returns>
public static string ServerDateTimeString(DateTime DateToDisplay)
{
return DateToDisplay.ToLocalTime().ToString("g");
}
}//eoc
}//eons