package org.activityinfo.legacy.client.type;

/*
 * #%L
 * ActivityInfo Server
 * %%
 * Copyright (C) 2009 - 2013 UNICEF
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public 
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import com.extjs.gxt.ui.client.util.DateWrapper;
import org.activityinfo.legacy.shared.command.Month;
import org.activityinfo.legacy.shared.reports.model.DateRange;
import org.activityinfo.legacy.shared.reports.model.DateUnit;
import org.activityinfo.legacy.shared.reports.util.DateUtil;

import java.util.Date;

/**
 * Client-side implementation of the
 * {@link org.activityinfo.legacy.shared.reports.util.DateUtil} interface.
 *
 * @author Alex Bertram
 */
public class DateUtilGWTImpl extends DateUtil {

    public static final DateUtilGWTImpl INSTANCE = new DateUtilGWTImpl();

    @Override
    public Month getCurrentMonth() {
        DateWrapper today = new DateWrapper();
        return new Month(today.getFullYear(), today.getMonth());
    }

    @Override
    public DateRange yearRange(int year) {
        DateRange range = new DateRange();

        DateWrapper date = new DateWrapper(year, 0, 1);
        range.setMinDate(date.asDate());

        date = new DateWrapper(year, 11, 31);
        range.setMaxDate(date.asDate());

        return range;

    }

    @Override
    public DateRange monthRange(int year, int month) {

        DateRange range = new DateRange();

        DateWrapper date = new DateWrapper(year, month - 1, 1);
        range.setMinDate(date.asDate());

        date = date.addMonths(1);
        date = date.addDays(-1);
        range.setMaxDate(date.asDate());

        return range;

    }

    @Override
    public int getYear(Date date) {
        DateWrapper dw = new DateWrapper(date);
        return dw.getFullYear();
    }

    @Override
    public int getMonth(Date date) {
        DateWrapper dw = new DateWrapper(date);
        return dw.getMonth() + 1;
    }

    @Override
    public int getDay(Date date) {
        DateWrapper dw = new DateWrapper(date);
        return dw.getDay();
    }

    @Override
    public Date floor(Date date, DateUnit dateUnit) {
        throw new RuntimeException("not implemented");
    }

    @Override
    public Date ceil(Date date, DateUnit dateUnit) {
        throw new RuntimeException("not implemented");
    }

    @Override
    public Date add(Date date, DateUnit dateUnit, int count) {
        throw new RuntimeException("not implemented");
    }

    @Override
    public boolean isLastDayOfMonth(Date date) {
        return false;
    }
}