/*   Copyright 2004-2014 Jim Voris
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */
package com.qumasoft.guitools.qwin;

import java.util.Objects;

/**
 * Ascend/descend sort key. A helper wrapper that lets us alter the ascending/descending behavior of a Comparable object without modifying that class.
 * @author Jim Voris
 */
class AscendDecendSortKey implements Comparable {

    private final boolean ascendingSortFlag;
    private final String comparableObject;

    AscendDecendSortKey(String sortObject, boolean ascending) {
        ascendingSortFlag = ascending;
        comparableObject = sortObject;
    }

    @Override
    public int compareTo(Object o) {
        AscendDecendSortKey compareObject = (AscendDecendSortKey) o;
        if (ascendingSortFlag) {
            return comparableObject.compareTo(compareObject.comparableObject);
        } else {
            return compareObject.comparableObject.compareTo(comparableObject);
        }
    }

    @Override
    public boolean equals(Object o) {
        boolean retVal = false;
        if (o instanceof AscendDecendSortKey) {
            AscendDecendSortKey ascendDecendSortKey = (AscendDecendSortKey) o;
            if ((ascendDecendSortKey.ascendingSortFlag == this.ascendingSortFlag) && (ascendDecendSortKey.comparableObject.equals(this.comparableObject))) {
                retVal = true;
            }
        }
        return retVal;
    }

    @Override
    public int hashCode() {
        // <editor-fold>
        int hash = 3;
        hash = 41 * hash + (this.ascendingSortFlag
                ? 1
                : 0);
        hash = 41 * hash + Objects.hashCode(this.comparableObject);
        // </editor-fold>
        return hash;
    }
}