/*
 * Copyright 2012-2014 Red Hat, Inc.
 *
 * This file is part of Thermostat.
 *
 * Thermostat 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 2, or (at your
 * option) any later version.
 *
 * Thermostat 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 Thermostat; see the file COPYING.  If not see
 * <http://www.gnu.org/licenses/>.
 *
 * Linking this code with other modules is making a combined work
 * based on this code.  Thus, the terms and conditions of the GNU
 * General Public License cover the whole combination.
 *
 * As a special exception, the copyright holders of this code give
 * you permission to link this code with independent modules to
 * produce an executable, regardless of the license terms of these
 * independent modules, and to copy and distribute the resulting
 * executable under terms of your choice, provided that you also
 * meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module
 * which is not derived from or based on this code.  If you modify
 * this code, you may extend this exception to your version of the
 * library, but you are not obligated to do so.  If you do not wish
 * to do so, delete this exception statement from your version.
 */

package com.redhat.thermostat.common.model;

/**
 * A class that normalizes {@link LongRange} values to another given range.
 * 
 * <br /><br />
 * 
 * The range of normalization is inclusive of the extremes.
 */
public class LongRangeNormalizer {

    private long minNormalized;
    
    private long maxNormalized;
 
    private Range<Long> range;
    
    public LongRangeNormalizer(Range<Long> range) {
        this.range = range;
    }

    public LongRangeNormalizer(Range<Long> range, long minNormalized, long maxNormalized) {
        this.range = range;
        this.maxNormalized = maxNormalized;
        this.minNormalized = minNormalized;
    }
    
    public LongRangeNormalizer(Range<Long> range, Range<Long> normilizedRange) {
        this.range = range;
        maxNormalized = normilizedRange.max;
        minNormalized = normilizedRange.min;
    }
    
    public void setMaxNormalized(long maxNormalized) {
        this.maxNormalized = maxNormalized;
    }
    
    public void setMinNormalized(long minNormalized) {
        this.minNormalized = minNormalized;
    }
    
    
    public long getMaxNormalized() {
        return maxNormalized;
    }
    
    public long getMinNormalized() {
        return minNormalized;
    }
    
    public long getValueNormalized(long value) {
        double normalized = ((value - range.min) * (double)(maxNormalized - minNormalized)/(range.max - range.min)) + minNormalized;
        return Math.round(normalized);
    }
}

