package net.sourceforge.fenixedu.presentationTier.renderers.converters;

import org.joda.time.YearMonthDay;

import pt.ist.fenixWebFramework.renderers.components.converters.BiDirectionalConverter;

public class YearMonthDayConverter extends BiDirectionalConverter {

    @Override
    public Object convert(Class type, Object value) {

	if (value == null) {
	    return null;
	}

	String valueString = (String) value;
	int year = Integer.parseInt(valueString.substring(0, 4));
	int month = Integer.parseInt(valueString.substring(5, 7));
	int day = Integer.parseInt(valueString.substring(8, 10));
	if (year == 0 || month == 0 || day == 0) {
	    return null;
	}

	return new YearMonthDay(year, month, day);
    }

    @Override
    public String deserialize(Object object) {
	YearMonthDay date = (YearMonthDay) object;
	if (date != null) {
	    return date.toString("yyyy-MM-dd");
	}
	return "";
    }
}