/*
 * Copyright 2010 Instituto Superior Tecnico
 * 
 *      https://fenix-ashes.ist.utl.pt/
 * 
 *   This file is part of the vaadin-framework.
 *
 *   The vaadin-framework Infrastructure is free software: you can
 *   redistribute it and/or modify it under the terms of the GNU Lesser General
 *   Public License as published by the Free Software Foundation, either version
 *   3 of the License, or (at your option) any later version.*
 *
 *   vaadin-framework is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with vaadin-framework. If not, see <http://www.gnu.org/licenses/>.
 * 
 */
package pt.ist.vaadinframework.ui.fields;

import java.util.Date;

import org.joda.time.DateTime;
import org.joda.time.DateTimeFieldType;
import org.joda.time.Partial;

import com.vaadin.data.Property;
import com.vaadin.ui.PopupDateField;

/**
 * @author Pedro Santos (pedro.miguel.santos@ist.utl.pt)
 * 
 */
@SuppressWarnings("serial")
public class PartialPopupField extends PopupDateField {
    public static class PartialProperty implements Property {
        private final PartialPopupField field;

        private final Property property;

        public PartialProperty(PartialPopupField field, Property dataSource) {
            this.field = field;
            this.property = dataSource;
            if (!Partial.class.isAssignableFrom(dataSource.getType())) {
                throw new IllegalArgumentException("Can't use " + dataSource.getType().getName()
                        + " typed property as datasource");
            }
        }

        @Override
        public Object getValue() {
            Partial date = (Partial) property.getValue();
            return date == null ? null : date.toDateTime(new DateTime()).toDate();
        }

        @Override
        public void setValue(Object newValue) throws ReadOnlyException, ConversionException {
            Date date = (Date) newValue;
            Partial partial = (Partial) property.getValue();
            if (date != null) {
                if (partial == null) {
                    partial = new Partial();
                }
                DateTime dateTime = new DateTime(date);
                if (field.getResolution() <= RESOLUTION_YEAR) {
                    partial = partial.with(DateTimeFieldType.year(), dateTime.get(DateTimeFieldType.year()));
                }
                if (field.getResolution() <= RESOLUTION_MONTH) {
                    partial = partial.with(DateTimeFieldType.monthOfYear(), dateTime.get(DateTimeFieldType.monthOfYear()));
                }
                if (field.getResolution() <= RESOLUTION_DAY) {
                    partial = partial.with(DateTimeFieldType.dayOfMonth(), dateTime.get(DateTimeFieldType.dayOfMonth()));
                }
                if (field.getResolution() <= RESOLUTION_HOUR) {
                    partial = partial.with(DateTimeFieldType.hourOfDay(), dateTime.get(DateTimeFieldType.hourOfDay()));
                }
                if (field.getResolution() <= RESOLUTION_MIN) {
                    partial = partial.with(DateTimeFieldType.minuteOfHour(), dateTime.get(DateTimeFieldType.minuteOfHour()));
                }
                if (field.getResolution() <= RESOLUTION_SEC) {
                    partial = partial.with(DateTimeFieldType.secondOfMinute(), dateTime.get(DateTimeFieldType.secondOfMinute()));
                }
                if (field.getResolution() <= RESOLUTION_MSEC) {
                    partial = partial.with(DateTimeFieldType.millisOfSecond(), dateTime.get(DateTimeFieldType.millisOfSecond()));
                }
            } else {
                partial = null;
            }
            property.setValue(partial);
        }

        @Override
        public Class<?> getType() {
            return Date.class;
        }

        @Override
        public boolean isReadOnly() {
            return property.isReadOnly();
        }

        @Override
        public void setReadOnly(boolean newStatus) {
            property.setReadOnly(newStatus);
        }
    }

    public PartialPopupField() {
        super();
    }

    @Override
    public void setPropertyDataSource(Property dataSource) {
        super.setPropertyDataSource(new PartialProperty(this, dataSource));
    }
}