package er.ajax.example2.util;
import java.util.Calendar;
import com.webobjects.foundation.NSArray;
import com.webobjects.foundation.NSMutableArray;
import com.webobjects.foundation.NSTimestamp;
public class Month {
private int _month;
private int _year;
private NSArray<NSArray<Day>> _weeks;
private NSMutableArray<Week> _weekObjects;
public Month(Calendar _cal) {
this(_cal.get(Calendar.MONTH) + 1, _cal.get(Calendar.YEAR));
}
public Month(int month, int year) {
_month = month;
_year = year;
}
public int month() {
return _month;
}
public int year() {
return _year;
}
public Year yearObject() {
return new Year(_year);
}
public void setYear(int year) {
_year = year;
_weeks = null;
_weekObjects = null;
}
public String shortMonthName() {
String monthFormat = DateUtils.SHORT_MONTH_NAME_FORMATTER.format(monthTimestamp());
return monthFormat;
}
public String monthName() {
String monthFormat = DateUtils.MONTH_NAME_FORMATTER.format(monthTimestamp());
return monthFormat;
}
public String monthAndYearName() {
String monthFormat = DateUtils.MONTH_NAME_AND_YEAR_FORMATTER.format(monthTimestamp());
return monthFormat;
}
public String shortMonthAndYearName() {
String monthFormat = DateUtils.SHORT_MONTH_NAME_AND_YEAR_FORMATTER.format(monthTimestamp());
return monthFormat;
}
public Calendar monthCalendar() {
Calendar monthCalendar = Calendar.getInstance();
monthCalendar.set(Calendar.DAY_OF_MONTH, 1);
monthCalendar.set(Calendar.YEAR, _year);
monthCalendar.set(Calendar.MONTH, _month - 1);
return monthCalendar;
}
public NSTimestamp monthTimestamp() {
NSTimestamp calendarTimestamp = DateUtils.timestamp(_year, _month, 1, 0, 0, 0, 0);
return calendarTimestamp;
}
@Override
public int hashCode() {
return _month + _year;
}
@Override
public boolean equals(Object _obj) {
Month otherMonth = (Month) _obj;
boolean equals = (otherMonth != null && (otherMonth._month == _month) && (otherMonth._year == _year));
return equals;
}
public Day firstDay() {
Calendar monthCalendar = monthCalendar();
monthCalendar.set(Calendar.DAY_OF_MONTH, 1);
Day firstDay = Day.day(monthCalendar);
return firstDay;
}
public Day lastDay() {
Calendar monthCalendar = monthCalendar();
monthCalendar.set(Calendar.DAY_OF_MONTH, monthCalendar.getActualMaximum(Calendar.DAY_OF_MONTH));
Day lastDay = Day.day(monthCalendar);
return lastDay;
}
public Month previousMonth() {
Calendar previousMonthCalendar = monthCalendar();
previousMonthCalendar.add(Calendar.MONTH, -1);
Month previousMonth = new Month(previousMonthCalendar);
return previousMonth;
}
public Month nextMonth() {
Calendar nextMonthCalendar = monthCalendar();
nextMonthCalendar.add(Calendar.MONTH, 1);
Month nextMonth = new Month(nextMonthCalendar);
return nextMonth;
}
public NSArray<NSArray<Day>> weeks() {
if (_weeks == null) {
Calendar calendar = monthCalendar();
int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK);
int maxDaysInMonth = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
calendar.add(Calendar.DAY_OF_MONTH, -(dayOfWeek - 1));
NSMutableArray<NSArray<Day>> weeks = new NSMutableArray<NSArray<Day>>();
int maxDaysInWeek = calendar.getMaximum(Calendar.DAY_OF_WEEK);
int maxDays = (dayOfWeek - 1) + maxDaysInMonth;
int daysFromNextMonth = (maxDays % maxDaysInWeek);
if (daysFromNextMonth != 0) {
maxDays += (maxDaysInWeek - daysFromNextMonth);
}
for (int dayNum = 0; dayNum < maxDays;) {
NSMutableArray<Day> daysInWeek = new NSMutableArray<Day>();
for (int dayOfWeekNum = 0; dayOfWeekNum < maxDaysInWeek; dayOfWeekNum++, dayNum++) {
Day day = new Day(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH) + 1, calendar.get(Calendar.DAY_OF_MONTH));
daysInWeek.addObject(day);
calendar.add(Calendar.DAY_OF_MONTH, 1);
}
weeks.addObject(daysInWeek);
}
_weeks = weeks;
}
return _weeks;
}
public NSArray<Week> weekObjects() {
NSMutableArray<Week> weekObjects = _weekObjects;
if (weekObjects == null) {
weekObjects = new NSMutableArray<Week>();
weeks();
for (int i = 0; i < _weeks.count(); i++) {
NSArray<Day> week = _weeks.get(i);
weekObjects.add(Week.containingWeekForDay(week.get(0)));
}
_weekObjects = weekObjects;
}
return weekObjects;
}
/**
* Returns the date range of a "visible" calendar, which
* includes the couple of days at the end of the previous
* month and the couple of days at the beginning of the
* next month (to form a block of weeks).
*
* @return visible date range
*/
public DateRange visibleDateRange() {
NSArray<Week> weeks = weekObjects();
NSTimestamp startDate = weeks.objectAtIndex(0).getStartTime();
NSTimestamp endDate = weeks.lastObject().getEndTime();
return new DateRange(startDate, endDate);
}
@Override
public String toString() {
return "[Month: " + _month + "/" + _year + "]";
}
public static Month month(NSTimestamp date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
Month month = new Month(cal);
return month;
}
public static Month firstMonthOfThisYear() {
Calendar now = Calendar.getInstance();
Month month = new Month(1, now.get(Calendar.YEAR));
return month;
}
public static Month firstMonthOfYear(int year) {
Calendar now = Calendar.getInstance();
Month month = new Month(1, year);
return month;
}
public static NSArray<Month> allMonths(int year) {
return Month.months(Month.firstMonthOfYear(year), 0, 12);
}
public static NSArray<Month> allMonths() {
return Month.months(Month.firstMonthOfThisYear(), 0, 12);
}
public static NSArray<Month> months(Month startingMonth, Month endingMonth) {
if (endingMonth._year < startingMonth._year || (endingMonth._year == startingMonth._year && endingMonth._month < startingMonth._month)) {
throw new IllegalArgumentException("Ending month was before starting month.");
}
NSMutableArray<Month> months = new NSMutableArray<Month>();
Calendar monthCalendar = startingMonth.monthCalendar();
Month month = startingMonth;
do {
months.addObject(month);
monthCalendar.add(Calendar.MONTH, 1);
month = new Month(monthCalendar);
} while (!month.equals(endingMonth));
return months;
}
public static NSArray<Month> months(Month startingMonth, int offset, int count) {
NSMutableArray<Month> months = new NSMutableArray<Month>();
Calendar monthCalendar = startingMonth.monthCalendar();
monthCalendar.add(Calendar.MONTH, offset);
for (int i = 0; i < count; i++) {
months.addObject(new Month(monthCalendar));
monthCalendar.add(Calendar.MONTH, 1);
}
return months;
}
public static Month thisMonth() {
Calendar now = Calendar.getInstance();
Month thisMonth = new Month(now);
return thisMonth;
}
}