private boolean nextIsLeft() {
boolean returnLeft;
if (leftHasNext) {
if (rightHasNext) {
int leftFirstDayIndex = nextLeft.getFirstDayIndex();
int rightFirstDayIndex = nextRight.getFirstDayIndex();
returnLeft = leftFirstDayIndex <= rightFirstDayIndex;
} else {
returnLeft = true;
}
} else {
if (rightHasNext) {
returnLeft = false;
} else {
throw new NoSuchElementException();
}
}
return returnLeft;
}
public boolean hasNextWithMaximumFirstDayIndexes(
int leftMinimumFirstDayIndex, int rightMinimumFirstDayIndex) {
if (!hasNext()) {
return false;
}
boolean nextIsLeft = nextIsLeft();
if (nextIsLeft) {
int firstDayIndex = nextLeft.getFirstDayIndex();
// It should not be conflict in the same pillar and it should be in conflict with the other
// pillar
return firstDayIndex > leftMinimumFirstDayIndex
&& firstDayIndex <= rightMinimumFirstDayIndex;
} else {
int firstDayIndex = nextRight.getFirstDayIndex();
// It should not be conflict in the same pillar and it should be in conflict with the other
// pillar
return firstDayIndex > rightMinimumFirstDayIndex
&& firstDayIndex <= leftMinimumFirstDayIndex;
}
}
