public static DateTimeInterval GetOverlapedPeriod(this DateTimeInterval period1, DateTimeInterval period2)
{
if (IsOverlapedPeriods(period1, period2))
{
return(new DateTimeInterval(
DateTimeHelper.Max(period1.StartInterval, period2.StartInterval),
DateTimeHelper.Min(period1.EndInterval, period2.EndInterval)));
}
else
{
return(null);
}
}
/// <summary>
/// Determines whether the whole or parts of period1 and period2 are overlaped
/// </summary>
/// <param name="period1">The period1.</param>
/// <param name="period2">The period2.</param>
/// <returns>
/// <c>true</c> if any overlaped periods; otherwise, <c>false</c>.
/// </returns>
public static bool IsOverlapedPeriods(this DateTimeInterval period1, DateTimeInterval period2)
{
if (period1 == null)
{
throw new ArgumentNullException("period1");
}
if (period2 == null)
{
throw new ArgumentNullException("period2");
}
return(period2.StartInterval.InPeriod(period1) || period1.StartInterval.InPeriod(period2));
}
//public static bool operator <(DateTimeInterval a, DateTimeInterval b)
//{
// return Comparison(a, b) < 0;
//}
//public static bool operator >(DateTimeInterval a, DateTimeInterval b)
//{
// return Comparison(a, b) > 0;
//}
//public static int Comparison(DateTimeInterval a, DateTimeInterval b)
//{
// if (a.StartInterval < b.StartInterval)
// return -1;
// else if (a.StartInterval == b.StartInterval && a.EndInterval == b.EndInterval)
// return 0;
// else if (a.StartInterval > b.StartInterval)
// return 1;
// return 0;
//}
public int CompareTo(object obj)
{
if (obj is DateTimeInterval)
{
DateTimeInterval temp = (DateTimeInterval)obj;
if (temp.StartInterval == this.StartInterval && temp.EndInterval == this.EndInterval)
{
return(0);
}
else
{
return(-1);// 1 or -1 => Not important. We would juste like to know if periods are equal
}
}
throw new ArgumentException("object is not a DateTimeInterval");
}
public override bool Equals(object obj)
{
// If parameter is null return false.
if (obj == null)
{
return(false);
}
// If parameter cannot be cast to DateTimeInterval return false.
DateTimeInterval p = obj as DateTimeInterval;
if ((System.Object)p == null)
{
return(false);
}
// Return true if the fields match:
return((StartInterval == p.StartInterval) && (EndInterval == p.EndInterval));
}
public List <DateTimeInterval> GetPeriodsByWeeksInMonth()
{
List <DateTimeInterval> result = new List <DateTimeInterval>();
DateTime date = startInterval;
while (date < endInterval)
{
DateTimeInterval dInterval = new DateTimeInterval
{
StartInterval = date,
EndInterval = DateTimeHelper.Min(date.AddDays(7), date.ToEndOfMonth())
};
result.Add(dInterval);
date = date.AddDays(7);
}
return(result);
}
public List <DateTimeInterval> GetPeriodsByWeek()
{
List <DateTimeInterval> result = new List <DateTimeInterval>();
DateTime date = startInterval;
while (date < endInterval)
{
DateTimeInterval dInterval = new DateTimeInterval
{
StartInterval = date,
EndInterval = date.AddDays(7)
};
result.Add(dInterval);
date = date.AddDays(7);
}
return(result);
}
public List <DateTimeInterval> GetPeriodsByMonth()
{
List <DateTimeInterval> result = new List <DateTimeInterval>();
DateTime date = startInterval;
while (date < endInterval)
{
date = date.ToEndOfMonth();
DateTimeInterval dInterval = new DateTimeInterval
{
StartInterval = new DateTime(date.Year, date.Month, 1),
EndInterval = date > endInterval ? endInterval : date
};
result.Add(dInterval);
date = date.AddDays(1);
}
return(result);
}
public List <DateTimeInterval> GetPeriodsByFullMonth()
{
List <DateTimeInterval> result = new List <DateTimeInterval>();
DateTime date = startInterval;
while (date < endInterval.ToEndOfMonth())
{
date = date.ToEndOfMonth();
DateTimeInterval dInterval = new DateTimeInterval
{
StartInterval = new DateTime(date.Year, date.Month, 1),
EndInterval = date
};
result.Add(dInterval);
date = date.AddSeconds(2);
}
return(result);
}
public DateTimeInterval(DateTimeInterval period)
{
this.StartInterval = period.StartInterval;
this.EndInterval = period.EndInterval;
}
public static List <DateTimeInterval> GetOverlapedPeriodByDay(this DateTimeInterval period1, DateTimeInterval period2)
{
DateTimeInterval overlapedPeriod = GetOverlapedPeriod(period1, period2);
if (overlapedPeriod != null)
{
return(overlapedPeriod.GetPeriodsByDay());
}
return(null);
}
/// <summary>
/// Gets the total periods by month.
/// </summary>
/// <param name="period1">The period1.</param>
/// <param name="period2">The period2.</param>
/// <param name="ignoreEmptyPeriods">if set to <c>true</c> not consider periods between the smallest end date period and the greatest
/// start date period.</param>
/// <returns></returns>
public static List <DateTimeInterval> GetTotalPeriodsByMonth(this DateTimeInterval period1, DateTimeInterval period2, bool ignoreEmptyPeriods)
{
if (IsOverlapedPeriods(period1, period2))
{
return(new DateTimeInterval(DateTimeHelper.Min(period1.StartInterval, period2.StartInterval),
DateTimeHelper.Max(period1.EndInterval, period2.EndInterval)).GetPeriodsByFullMonth());
}
else
{
List <DateTimeInterval> lst = new List <DateTimeInterval>();
if (ignoreEmptyPeriods)
{
lst.AddRange(new DateTimeInterval(DateTimeHelper.Min(period1.StartInterval, period2.StartInterval),
DateTimeHelper.Min(period1.EndInterval, period2.EndInterval)).GetPeriodsByFullMonth());
lst.AddRange(new DateTimeInterval(DateTimeHelper.Max(period1.StartInterval, period2.StartInterval),
DateTimeHelper.Max(period1.EndInterval, period2.EndInterval)).GetPeriodsByFullMonth());
}
else
{
lst.AddRange(new DateTimeInterval(DateTimeHelper.Min(period1.StartInterval, period2.StartInterval),
DateTimeHelper.Max(period1.EndInterval, period2.EndInterval)).GetPeriodsByFullMonth());
}
return(lst);
}
}
public bool IsIntersects(DateTimeInterval period)
{
return(this.StartInterval.IsBetweenDates(period.StartInterval, period.EndInterval) || this.EndInterval.IsBetweenDates(period.StartInterval, period.EndInterval) ||
period.StartInterval.IsBetweenDates(this.StartInterval, this.EndInterval) || period.EndInterval.IsBetweenDates(this.StartInterval, this.EndInterval));
}
