public static DateTimeOffset AddBusinessDays(this DateTimeOffset date, int day, BussinessDayConfig config)
{
if (config == null)
{
config = new BussinessDayConfig();
}
var currentDate = date;
var sign = Math.Sign(day);
var unsignDays = Math.Abs(day);
var workingDay = config.WorkingDay();
var holiday = config.Holiday.Select(x => x.Date).ToList();
while (unsignDays > 0)
{
currentDate = currentDate.AddDays(sign);
if (workingDay.Any(x => x == currentDate.DayOfWeek) && !holiday.Any(c => c == currentDate.Date)) /* if working day. */
{
unsignDays -= 1;
}
}
return(currentDate);
}
public static DateTime AddWorkingHours(this DateTime dateTime, TimeSpan time, TimeSpan workingHourStart, TimeSpan workingHourEnd, bool sameDay = true, BussinessDayConfig bussinessDayConfig = null)
{
var startDate = dateTime.Date + workingHourStart;
var endDate = dateTime.Date + workingHourEnd;
if (dateTime > endDate || (dateTime + time > endDate && sameDay))
{
startDate = startDate.AddBusinessDays(1, bussinessDayConfig);
endDate = endDate.AddBusinessDays(1, bussinessDayConfig);
dateTime = startDate;
}
var date = dateTime + time;
if (date > endDate)
{
var diff = date - endDate;
var remain = time - diff;
return(startDate.AddBusinessDays(1, bussinessDayConfig).AddWorkingHours(diff, workingHourStart, workingHourEnd));
}
else
{
return(date);
}
}
public static DateTime AddWorkingHours(this DateTime dateTime, string time, string workingHourStart = "9:00", string workingHourEnd = "18:00", bool sameDay = true, BussinessDayConfig bussinessDayConfig = null)
{
var t = TimeSpan.Parse(time);
var start = TimeSpan.Parse(workingHourStart);
var end = TimeSpan.Parse(workingHourEnd);
return(dateTime.AddWorkingHours(t, start, end, sameDay, bussinessDayConfig));
}
public static DateTimeOffset?AddBusinessDays(this DateTimeOffset?date, int day, BussinessDayConfig config)
{
if (date.HasValue)
{
return(date.Value.AddBusinessDays(day, config));
}
else
{
return(date);
}
}