package com.mdimension.jchronic.repeaters;
import java.util.Calendar;
import com.mdimension.jchronic.tags.Pointer;
import com.mdimension.jchronic.tags.Pointer.PointerType;
import com.mdimension.jchronic.utils.Span;
import com.mdimension.jchronic.utils.Time;
public class RepeaterMonth extends RepeaterUnit {
private static final int MONTH_SECONDS = 2592000; // 30 * 24 * 60 * 60
private Calendar _currentMonthStart;
@Override
protected Span _nextSpan(PointerType pointer) {
int direction = (pointer == Pointer.PointerType.FUTURE) ? 1 : -1;
if (_currentMonthStart == null) {
_currentMonthStart = Time.cloneAndAdd(Time.ym(getNow()), Calendar.MONTH, direction);
}
else {
_currentMonthStart = Time.cloneAndAdd(_currentMonthStart, Calendar.MONTH, direction);
}
return new Span(_currentMonthStart, Calendar.MONTH, 1);
}
@Override
public Span getOffset(Span span, int amount, Pointer.PointerType pointer) {
int direction = (pointer == Pointer.PointerType.FUTURE) ? 1 : -1;
return new Span(Time.cloneAndAdd(span.getBeginCalendar(), Calendar.MONTH, amount * direction), Time.cloneAndAdd(span.getEndCalendar(), Calendar.MONTH, amount * direction));
}
@Override
protected Span _thisSpan(PointerType pointer) {
Calendar monthStart;
Calendar monthEnd;
if (pointer == PointerType.FUTURE) {
monthStart = Time.cloneAndAdd(Time.ymd(getNow()), Calendar.DAY_OF_MONTH, 1);
monthEnd = Time.cloneAndAdd(Time.ym(getNow()), Calendar.MONTH, 1);
}
else if (pointer == PointerType.PAST) {
monthStart = Time.ym(getNow());
monthEnd = Time.ymd(getNow());
}
else if (pointer == PointerType.NONE) {
monthStart = Time.ym(getNow());
monthEnd = Time.cloneAndAdd(Time.ym(getNow()), Calendar.MONTH, 1);
}
else {
throw new IllegalArgumentException("Unable to handle pointer " + pointer + ".");
}
return new Span(monthStart, monthEnd);
}
@Override
public int getWidth() {
// WARN: Does not use Calendar
return RepeaterMonth.MONTH_SECONDS;
}
@Override
public String toString() {
return super.toString() + "-month";
}
}