/// <summary>
/// Gets the time.
/// </summary>
/// <param name="date">The date.</param>
/// <param name="calendar">The calendar.</param>
/// <returns>System.Nullable{DateTime}.</returns>
private static DateTime? GetTime(DateTime date, ICalendar calendar)
{
if (calendar == null || calendar.WorkingIntervals == null || !calendar.WorkingIntervals.Any())
{
return date;
}
var day = date.DayOfWeek;
var skipInterval = false;
foreach (var item in calendar.WorkingIntervals.OrderBy(x => x.StartDate).Where(x => x.Weekday == day.ToString()))
{
if (!item.StartDate.HasValue) continue;
if (calendar.WorkingExceptions != null)
{
var startDate = new DateTime(date.Year, date.Month, date.Day, item.StartDate.Value.Hour, item.StartDate.Value.Minute, 0);
var finishDateHour = 0;
var finishDateMinute = 0;
if (item.FinishDate != null)
{
finishDateHour = item.FinishDate.Value.Hour;
finishDateMinute = item.FinishDate.Value.Minute;
}
var finishDate = new DateTime(date.Date.Year, date.Date.Month, date.Date.Day, finishDateHour, finishDateMinute, 0);
var workingInterval = new DateTimeInterval(startDate, finishDate);
var intersectedExceptions = new List<DateTimeInterval>();
foreach (var exception in calendar.WorkingExceptions)
{
if (exception.StartDate.HasValue && exception.FinishDate.HasValue)
{
var compareResult = workingInterval.Compare(exception.StartDate.Value, exception.FinishDate.Value);
switch (compareResult)
{
case Interposition.Inside:
skipInterval = true;
break;
case Interposition.IntersectRight:
case Interposition.IntersectLeft:
case Interposition.Contains:
intersectedExceptions.Add(new DateTimeInterval(exception.StartDate.Value, exception.FinishDate.Value));
break;
}
}
if (skipInterval)
break;
}
if (intersectedExceptions.Count > 0)
{
for (var i = 0; i < intersectedExceptions.Count; i++)
{
//объеденить пересекающиеся между собой исключения
for (var j = i + 1; j < intersectedExceptions.Count; j++)
{
var uniteResult = intersectedExceptions[i].Unite(intersectedExceptions[j]);
if (uniteResult != null)
{
//remove united items
intersectedExceptions.Remove(intersectedExceptions[j]);
intersectedExceptions.Remove(intersectedExceptions[i]);
//insert united result instead
intersectedExceptions.Insert(i, uniteResult);
}
}
}
// единственное исключение с которым осталось сравнить рабочее время.
var resultException = intersectedExceptions.OrderBy(exc => exc.StartDate).First();
switch (workingInterval.Compare(resultException))
{
case Interposition.Inside:
skipInterval = true;
break;
case Interposition.IntersectRight:
return resultException.FinishDate;
default:
return workingInterval.StartDate;
}
}
}
if (skipInterval == false)
return date.Date + item.StartDate.Value.TimeOfDay;
skipInterval = false;
}
return null;
}
private static ICalendarWorkingException GetWorkingException(DateTime date, ICalendar calendar, List<ICalendarWorkingInterval> workingIntervals, FrequencyPatternType pattern = FrequencyPatternType.Monthly)
{
if (calendar == null || !calendar.WorkingExceptions.Any() || workingIntervals == null || !workingIntervals.Any())
return null;
foreach (var item in workingIntervals)
{
if (!item.StartDate.HasValue) continue;
var startDate = new DateTime(date.Year, date.Month, date.Day, item.StartDate.Value.Hour, item.StartDate.Value.Minute, 0);
var finishDateHour = 0;
var finishDateMinute = 0;
if (item.FinishDate.HasValue)
{
finishDateHour = item.FinishDate.Value.Hour;
finishDateMinute = item.FinishDate.Value.Minute;
}
var finishDate = new DateTime(date.Date.Year, date.Date.Month, date.Date.Day, finishDateHour, finishDateMinute, 0);
var workingInterval = new DateTimeInterval(startDate, finishDate);
foreach (var exception in calendar.WorkingExceptions.Where(x => x.StartDate.HasValue && x.FinishDate.HasValue && (x.FinishDate.Value > x.StartDate.Value)))
{
var compareResult = workingInterval.Compare(exception.StartDate.Value, exception.FinishDate.Value);
switch (compareResult)
{
case Interposition.Inside:
case Interposition.IntersectRight:
case Interposition.IntersectLeft:
return pattern == FrequencyPatternType.Daily ? null : exception;
case Interposition.Contains:
return exception;
}
}
}
return null;
}
