private static bool PutLeftoverCourseOnOldPosition(Period period, SchedulableElement blockingCourse, Course unsuccessfulCourse, List <Room> rooms)
{
bool wasSetable = false;
List <SchedulableElement> coursesAtPeriod = period.Elements;
foreach (SchedulableElement courseElement in period.Elements.ToList())
{
if (courseElement.Id == blockingCourse.Id)
{
period.Elements.Remove(blockingCourse);
period.RemovedElements.Add(blockingCourse.Id);
}
List <Room> freeRooms = GetFreeRoomsAtPeriod(period, rooms);
bool semesterIsUnoccupied = CheckWhetherSemesterIsOccupied(period.Elements, unsuccessfulCourse);
bool lecturerIsUnoccupied = CheckWhetherLecturerIsOccupied(coursesAtPeriod, courseElement.Course.Lecturer);
foreach (Room freeRoom in freeRooms)
{
bool hasRequirements = CheckWhetherEquipmentSuffices(freeRoom, unsuccessfulCourse);
if (freeRoom.Size >= unsuccessfulCourse.Size && lecturerIsUnoccupied && hasRequirements && semesterIsUnoccupied)
{
period.Elements.Add(new SchedulableElement(unsuccessfulCourse, freeRoom));
wasSetable = true;
break;
}
}
}
if (!wasSetable)
{
period.Elements.Add(blockingCourse);
}
return(wasSetable);
}
private static Course ReadjustLeftoverCourses(Period thisPeriod, Course unsuccessfulCourse, List <Room> rooms, Period[] periods)
{
SchedulableElement blockingCourse = FindBlockingElement(thisPeriod, unsuccessfulCourse);
if (blockingCourse == null)
{
return(null);
}
Course possiblySetable = CalcForCourse(blockingCourse.Course, periods, rooms, true);
if (possiblySetable != null)
{
bool wasSetable = PutLeftoverCourseOnOldPosition(thisPeriod, blockingCourse, unsuccessfulCourse, rooms);
if (wasSetable)
{
return(CalcForCourse(blockingCourse.Course, periods, rooms));
}
}
return(unsuccessfulCourse);
}