/// <summary>
/// Get the calendar time description from this DateTime instance to a specified DateTime instance
/// </summary>
/// <param name="This">The date instance which to start comparison from</param>
/// <param name="dateTime">The date instance to compare to</param>
/// <param name="formats">An object describing how the output string should be displayed</param>
/// <returns></returns>
public static string CalendarTime(this DateTime This, DateTime dateTime,
CalendarTimeFormats formats = null)
{
formats = formats ?? new CalendarTimeFormats();
var startDate = This.Kind == DateTimeKind.Local ? This : This.ToLocalTime();
var endDate = dateTime.Kind == DateTimeKind.Local ? dateTime : dateTime.ToLocalTime();
var timeDiff = endDate - startDate;
if (startDate.Date == endDate.Date)
{
return(endDate.ToString(formats.SameDay));
}
if (startDate.AddDays(1).Date == endDate.Date)
{
return(endDate.ToString(formats.NextDay));
}
if (startDate.AddDays(-1).Date == endDate.Date)
{
return(endDate.ToString(formats.LastDay));
}
if (timeDiff.TotalDays > 1 && timeDiff.TotalDays < 7)
{
return(endDate.ToString(formats.NextWeek));
}
if (timeDiff.TotalDays >= -6 && timeDiff.TotalDays < -1)
{
return(endDate.ToString(formats.LastWeek));
}
return(endDate.ToString(formats.EverythingElse));
}
/// <summary>
/// Get the calendar time description from this DateTime instance to the current time
/// </summary>
/// <param name="This">The date instance which to compare with the current date</param>
/// <param name="formats">An object describing how the output string should be displayed</param>
/// <returns></returns>
public static string CalendarTime(this DateTime This, CalendarTimeFormats formats = null)
{
return(CalendarTime(This, DateTime.Now, formats));
}
