package net.sourceforge.fenixedu.util;

import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;

import javax.faces.model.SelectItem;

import org.apache.struts.util.LabelValueBean;

public class Data extends FenixUtil {
    private int _dia;

    private int _mes;

    private int _ano;

    public static String JANUARY_STRING = "Janeiro";

    public static String FEBRUARY_STRING = "Fevereiro";

    public static String MARCH_STRING = "Março";

    public static String APRIL_STRING = "Abril";

    public static String MAY_STRING = "Maio";

    public static String JUNE_STRING = "Junho";

    public static String JULY_STRING = "Julho";

    public static String AUGUST_STRING = "Agosto";

    public static String SETEMBER_STRING = "Setembro";

    public static String OCTOBER_STRING = "Outubro";

    public static String NOVEMBER_STRING = "Novembro";

    public static String DECEMBER_STRING = "Dezembro";

    public static String OPTION_STRING = "";

    public static Integer JANUARY = Integer.valueOf(0);

    public static Integer FEBRUARY = Integer.valueOf(1);

    public static Integer MARCH = Integer.valueOf(2);

    public static Integer APRIL = Integer.valueOf(3);

    public static Integer MAY = Integer.valueOf(4);

    public static Integer JUNE = Integer.valueOf(5);

    public static Integer JULY = Integer.valueOf(6);

    public static Integer AUGUST = Integer.valueOf(7);

    public static Integer SETEMBER = Integer.valueOf(8);

    public static Integer OCTOBER = Integer.valueOf(9);

    public static Integer NOVEMBER = Integer.valueOf(10);

    public static Integer DECEMBER = Integer.valueOf(11);

    public static String OPTION_DEFAULT = null;

    /* Construtores */

    public Data(int dia, int mes, int ano) {
	dia(dia);
	mes(mes);
	ano(ano);
    }

    /* Selectores */

    public int dia() {
	return _dia;
    }

    public int mes() {
	return _mes;
    }

    public int ano() {
	return _ano;
    }

    /* Modificadores */

    public void dia(int dia) {
	_dia = dia;
    }

    public void mes(int mes) {
	_mes = mes;
    }

    public void ano(int ano) {
	_ano = ano;
    }

    /* Comparador */

    public boolean equals(Object o) {
	return o instanceof Data && _dia == ((Data) o).dia() && _mes == ((Data) o).mes() && _ano == ((Data) o).ano();
    }

    public static List<LabelValueBean> getMonthDays() {
	List<LabelValueBean> result = new ArrayList<LabelValueBean>();
	result.add(new LabelValueBean(Data.OPTION_STRING, Data.OPTION_DEFAULT));
	for (int i = 1; i <= 31; i++)
	    result.add(new LabelValueBean(Integer.valueOf(i).toString(), Integer.valueOf(i).toString()));
	return result;
    }

    public static List<SelectItem> getMonthDaysSelectItems() {
	List<SelectItem> result = new ArrayList<SelectItem>();
	for (int i = 1; i <= 31; i++)
	    result.add(new SelectItem(i, Integer.valueOf(i).toString()));
	return result;
    }

    public static List<LabelValueBean> getMonths() {
	List<LabelValueBean> result = new ArrayList<LabelValueBean>();
	result.add(new LabelValueBean(Data.OPTION_STRING, Data.OPTION_DEFAULT));
	result.add(new LabelValueBean(Data.JANUARY_STRING, Data.JANUARY.toString()));
	result.add(new LabelValueBean(Data.FEBRUARY_STRING, Data.FEBRUARY.toString()));
	result.add(new LabelValueBean(Data.MARCH_STRING, Data.MARCH.toString()));
	result.add(new LabelValueBean(Data.APRIL_STRING, Data.APRIL.toString()));
	result.add(new LabelValueBean(Data.MAY_STRING, Data.MAY.toString()));
	result.add(new LabelValueBean(Data.JUNE_STRING, Data.JUNE.toString()));
	result.add(new LabelValueBean(Data.JULY_STRING, Data.JULY.toString()));
	result.add(new LabelValueBean(Data.AUGUST_STRING, Data.AUGUST.toString()));
	result.add(new LabelValueBean(Data.SETEMBER_STRING, Data.SETEMBER.toString()));
	result.add(new LabelValueBean(Data.OCTOBER_STRING, Data.OCTOBER.toString()));
	result.add(new LabelValueBean(Data.NOVEMBER_STRING, Data.NOVEMBER.toString()));
	result.add(new LabelValueBean(Data.DECEMBER_STRING, Data.DECEMBER.toString()));
	return result;
    }

    public static List<LabelValueBean> getMonthsStartingInOne() {
	List<LabelValueBean> result = new ArrayList<LabelValueBean>();
	result.add(new LabelValueBean(Data.OPTION_STRING, Data.OPTION_DEFAULT));
	result.add(new LabelValueBean(Data.JANUARY_STRING, String.valueOf(Data.JANUARY + 1)));
	result.add(new LabelValueBean(Data.FEBRUARY_STRING, String.valueOf(Data.FEBRUARY + 1)));
	result.add(new LabelValueBean(Data.MARCH_STRING, String.valueOf(Data.MARCH + 1)));
	result.add(new LabelValueBean(Data.APRIL_STRING, String.valueOf(Data.APRIL + 1)));
	result.add(new LabelValueBean(Data.MAY_STRING, String.valueOf(Data.MAY + 1)));
	result.add(new LabelValueBean(Data.JUNE_STRING, String.valueOf(Data.JUNE + 1)));
	result.add(new LabelValueBean(Data.JULY_STRING, String.valueOf(Data.JULY + 1)));
	result.add(new LabelValueBean(Data.AUGUST_STRING, String.valueOf(Data.AUGUST + 1)));
	result.add(new LabelValueBean(Data.SETEMBER_STRING, String.valueOf(Data.SETEMBER + 1)));
	result.add(new LabelValueBean(Data.OCTOBER_STRING, String.valueOf(Data.OCTOBER + 1)));
	result.add(new LabelValueBean(Data.NOVEMBER_STRING, String.valueOf(Data.NOVEMBER + 1)));
	result.add(new LabelValueBean(Data.DECEMBER_STRING, String.valueOf(Data.DECEMBER + 1)));
	return result;
    }

    public static List<SelectItem> getMonthsSelectItems() {
	List<SelectItem> result = new ArrayList<SelectItem>();
	result.add(new SelectItem(Data.JANUARY, Data.JANUARY_STRING));
	result.add(new SelectItem(Data.FEBRUARY, Data.FEBRUARY_STRING));
	result.add(new SelectItem(Data.MARCH, Data.MARCH_STRING));
	result.add(new SelectItem(Data.APRIL, Data.APRIL_STRING));
	result.add(new SelectItem(Data.MAY, Data.MAY_STRING));
	result.add(new SelectItem(Data.JUNE, Data.JUNE_STRING));
	result.add(new SelectItem(Data.JULY, Data.JULY_STRING));
	result.add(new SelectItem(Data.AUGUST, Data.AUGUST_STRING));
	result.add(new SelectItem(Data.SETEMBER, Data.SETEMBER_STRING));
	result.add(new SelectItem(Data.OCTOBER, Data.OCTOBER_STRING));
	result.add(new SelectItem(Data.NOVEMBER, Data.NOVEMBER_STRING));
	result.add(new SelectItem(Data.DECEMBER, Data.DECEMBER_STRING));
	return result;
    }

    public static List getYears() {
	List result = new ArrayList();
	Calendar date = Calendar.getInstance();

	result.add(new LabelValueBean(Data.OPTION_STRING, Data.OPTION_DEFAULT));

	for (int i = date.get(Calendar.YEAR); i > 1900; i--)
	    result.add(new LabelValueBean(Integer.valueOf(i).toString(), Integer.valueOf(i).toString()));
	return result;
    }

    public static List<SelectItem> getExpirationYearsSelectItems() {
	List<SelectItem> result = new ArrayList<SelectItem>();
	Calendar date = Calendar.getInstance();

	for (int i = date.get(Calendar.YEAR) - 1; i < (date.get(Calendar.YEAR) + 20); i++)
	    result.add(new SelectItem(i, Integer.valueOf(i).toString()));
	return result;
    }

    public static List getExpirationYears() {
	List result = new ArrayList();
	Calendar date = Calendar.getInstance();

	result.add(new LabelValueBean(Data.OPTION_STRING, Data.OPTION_DEFAULT));

	for (int i = date.get(Calendar.YEAR) - 5; i < (date.get(Calendar.YEAR) + 20); i++)
	    result.add(new LabelValueBean(Integer.valueOf(i).toString(), Integer.valueOf(i).toString()));
	return result;
    }

    public static List getCustomYears(int minYear, int maxYear) {
	List result = new ArrayList();
	result.add(new LabelValueBean(Data.OPTION_STRING, Data.OPTION_DEFAULT));

	for (int i = minYear; i <= maxYear; i++)
	    result.add(new LabelValueBean(Integer.valueOf(i).toString(), Integer.valueOf(i).toString()));
	return result;
    }

    public static boolean validDate(Integer day, Integer month, Integer year) {
	boolean leapYear = false;

	// check 30 day months
	if (month.equals(APRIL) || month.equals(JUNE) || month.equals(SETEMBER) || month.equals(NOVEMBER))
	    if (day.intValue() == 31)
		return false;

	// Verifies if the Year

	if ((year.intValue() % 4 == 0 && year.intValue() % 100 != 0) || (year.intValue() % 400 == 0))
	    leapYear = true;

	if (month.equals(FEBRUARY) && leapYear && day.intValue() >= 30)
	    return false;
	else if (month.equals(FEBRUARY) && !leapYear && day.intValue() >= 29)
	    return false;

	return true;
    }

    /**
     * Formats date in format d separator M separator YYYY
     * 
     * @param Date
     *            to Format
     * @return String separator
     * 
     */
    public static String format2DayMonthYear(java.util.Date date, String separator) {
	if (date == null)
	    return null;

	Calendar calendar = Calendar.getInstance();
	calendar.setTime(date);
	String result = new String();
	result += calendar.get(Calendar.DAY_OF_MONTH);
	result += separator;
	result += calendar.get(Calendar.MONTH) + 1;
	result += separator;
	result += calendar.get(Calendar.YEAR);
	return result;
    }

    /**
     * Formats date in format dd separator MM separator YYYY
     * 
     * @param Date
     *            to Format
     * @return String separator
     * 
     */
    public static String format2DayMonthYearWithZeros(java.util.Date date, String separator) {
	if (date == null)
	    return null;

	Calendar calendar = Calendar.getInstance();
	calendar.setTime(date);
	String result = new String();
	int day = calendar.get(Calendar.DAY_OF_MONTH);
	if (day < 10)
	    result += ("0" + day);
	else
	    result += day;
	result += separator;
	int month = calendar.get(Calendar.MONTH) + 1;
	if (month < 10)
	    result += ("0" + month);
	else
	    result += month;
	result += separator;
	result += calendar.get(Calendar.YEAR);
	return result;
    }

    /**
     * Formats data in format d-M-YYYY
     * 
     * @param Date
     *            to Format
     */
    public static String format2DayMonthYear(java.util.Date date) {
	return Data.format2DayMonthYear(date, "-");
    }

    public static java.util.Date convertStringDate(String stringToConvert, String separator) {
	java.util.Date dateString = null;
	if (stringToConvert != null && stringToConvert.length() > 0) {
	    String[] dateTokens = stringToConvert.split(separator);
	    Calendar calendar = Calendar.getInstance();
	    calendar.set(Calendar.DAY_OF_MONTH, (Integer.valueOf(dateTokens[0])).intValue());
	    calendar.set(Calendar.MONTH, (Integer.valueOf(dateTokens[1])).intValue() - 1);
	    calendar.set(Calendar.YEAR, (Integer.valueOf(dateTokens[2])).intValue());
	    dateString = calendar.getTime();
	}
	return dateString;
    }

}