private static int Partition(string sortBy, List <Lesson> arr, int left, int right, bool MinToMax)
{
Lesson pivot = arr[right];
Lesson temp;
int i = left;
for (int j = left; j < right; j++)
{
switch (sortBy.ToLower())
{
case "year":
if ((MinToMax && arr[j].year <= pivot.year) || (!MinToMax && arr[j].year > pivot.year))
{
temp = arr[j];
arr[j] = arr[i];
arr[i] = temp;
i++;
}
break;
case "type":
if ((MinToMax && arr[j].type.CompareTo(pivot.type) <= 0) || (!MinToMax && arr[j].type.CompareTo(pivot.type) > 0))
{
temp = arr[j];
arr[j] = arr[i];
arr[i] = temp;
i++;
}
break;
case "course":
if ((MinToMax && arr[j].courseName.CompareTo(pivot.courseName) <= 0) || (!MinToMax && arr[j].courseName.CompareTo(pivot.courseName) > 0))
{
temp = arr[j];
arr[j] = arr[i];
arr[i] = temp;
i++;
}
break;
case "lecturer":
if ((MinToMax && arr[j].lecturer.CompareTo(pivot.lecturer) <= 0) || (!MinToMax && arr[j].lecturer.CompareTo(pivot.lecturer) > 0))
{
temp = arr[j];
arr[j] = arr[i];
arr[i] = temp;
i++;
}
break;
case "day":
if ((MinToMax && arr[j].getShortDay().CompareTo(pivot.getShortDay()) <= 0) || (!MinToMax && arr[j].getShortDay().CompareTo(pivot.getShortDay()) > 0))
{
temp = arr[j];
arr[j] = arr[i];
arr[i] = temp;
i++;
}
break;
case "start":
if ((MinToMax && arr[j].start <= pivot.start) || (!MinToMax && arr[j].start > pivot.start))
{
temp = arr[j];
arr[j] = arr[i];
arr[i] = temp;
i++;
}
break;
case "end":
if ((MinToMax && arr[j].end <= pivot.end) || (!MinToMax && arr[j].end > pivot.end))
{
temp = arr[j];
arr[j] = arr[i];
arr[i] = temp;
i++;
}
break;
case "hours":
if ((MinToMax && arr[j].weekHour <= pivot.weekHour) || (!MinToMax && arr[j].weekHour > pivot.weekHour))
{
temp = arr[j];
arr[j] = arr[i];
arr[i] = temp;
i++;
}
break;
case "class":
if ((MinToMax && arr[j].className.CompareTo(pivot.className) <= 0) || (!MinToMax && arr[j].className.CompareTo(pivot.className) > 0))
{
temp = arr[j];
arr[j] = arr[i];
arr[i] = temp;
i++;
}
break;
default:
if ((MinToMax && arr[j].year <= pivot.year) || (!MinToMax && arr[j].year > pivot.year))
{
temp = arr[j];
arr[j] = arr[i];
arr[i] = temp;
i++;
}
break;
}
}
arr[right] = arr[i];
arr[i] = pivot;
return(i);
}
public bool collisionAfter(Lesson lsn)
{
return(this.getShortDay().CompareTo(lsn.getShortDay()) == 0 &&
this.start >= lsn.start && this.start < lsn.end);
}
public bool After(Lesson lsn)
{
return((this.getShortDay().CompareTo(lsn.getShortDay()) > 0) ||
(this.getShortDay().CompareTo(lsn.getShortDay()) == 0 &&
this.start >= lsn.end));
}
public bool collisionBefore(Lesson lsn)
{
return(this.getShortDay().CompareTo(lsn.getShortDay()) == 0 &&
this.start <= lsn.start && this.end > lsn.start);
}
public bool Before(Lesson lsn)
{
return((this.getShortDay().CompareTo(lsn.getShortDay()) < 0) ||
(this.getShortDay().CompareTo(lsn.getShortDay()) == 0 &&
this.end <= lsn.start));
}