/// <summary>
/// The purpose of this method is to find avialable times for one employee in one period,
/// or to find common avilable times between several employees.
/// </summary>
/// <param name="list">A List of CalendarEntries alreday booked meetings</param>
/// <param name="eDate">DateTime representing the earliest date and time for meetings.</param>
/// <param name="lDate">DateTime representing the earliest date and time for meetings.</param>
private List <CalendarEntry> IntervalList(List <CalendarEntry> list, DateTime eDate, DateTime lDate)
{
List <CalendarEntry> newList = new List <CalendarEntry>();
while (lDate.Hour > lHour)
{
lDate = lDate.AddMinutes(-30);
}
CalendarEntry c;
//just a necessasity to get it rolling
if (list.Count == 0)
{
list.Add(new CalendarEntry {
BeginMeeting = lDate, EndMeeting = lDate.AddMinutes(length)
});
}
for (int i = 0; i < list.Count; i++)
{
c = list.ElementAt(i);
while (eDate.Hour > eHour)
{
eDate = eDate.AddMinutes(30);
}
while (eDate.Hour < eHour)
{
eDate = eDate.AddMinutes(30);
}
t = eDate.AddMinutes(length);
//eHours & lHours are opening hours
while (t <= c.BeginMeeting && t <= new DateTime(t.Year, t.Month, t.Day, lHour, 00, 00) && eDate.Hour >= eHour)
{
CalendarEntry newEntry = new CalendarEntry {
BeginMeeting = eDate, EndMeeting = t
};
while (t.Hour >= lHour)
{
t = t.AddMinutes(30);
}
while (t.Hour < eHour)
{
t = t.AddMinutes(60);
}
if (moreIDs)
{
if (CalendarEntry.Contains(newEntry, finalList))
{
newList.Add(newEntry);
}
}
else
{
newList.Add(newEntry);
}
t = t.AddMinutes(length);
eDate = t.AddMinutes(-length);
if (t > c.BeginMeeting)
{
eDate = c.EndMeeting.Value;
t = eDate.AddMinutes(length);
if (i != (list.Count - 1))
{
while (t < list.ElementAt(i + 1).BeginMeeting&& t <= new DateTime(t.Year, t.Month, t.Day, lHour, 00, 00))
{
newEntry = new CalendarEntry {
BeginMeeting = eDate, EndMeeting = t
};
//If more than one ID, then find common free times and put them in one list
if (moreIDs)
{
if (CalendarEntry.Contains(newEntry, finalList))
{
newList.Add(newEntry);
}
}
else
{
newList.Add(newEntry);
}
eDate = t;
t = eDate.AddMinutes(length);
}
}
//for the last busy time to check if there is time before office closing hours
else if (i == (list.Count - 1))
{
while (t <= new DateTime(t.Year, t.Month, t.Day, lHour, 00, 00))
{
newEntry = new CalendarEntry {
BeginMeeting = eDate, EndMeeting = t
};
//If more than one ID, then find common free times and put them in one list
if (moreIDs)
{
if (CalendarEntry.Contains(newEntry, finalList))
{
newList.Add(newEntry);
}
}
else
{
newList.Add(newEntry);
}
eDate = t;
t = eDate.AddMinutes(length);
}
}
}
}
}
return(newList);
}
