/*
 * Copyright 2019 Scott Logic Ltd
 *
 * 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.scottlogic.datahelix.generator.core.decisiontree.testutils;

public class DefaultEqualityComparer implements EqualityComparer {
    private final EqualityComparer collectionComparer;

    public DefaultEqualityComparer(EqualityComparer collectionComparer) {
        this.collectionComparer = collectionComparer;
    }

    @Override
    public int getHashCode(Object item) {
        return item.hashCode();
    }

    @Override
    public boolean equals(Object item1, Object item2) {
        if (item1 == null && item2 == null)
            return true;
        if (item1 == null || item2 == null)
            return false;

        if (StrictOrderCollectionEqualityComparer.isCollection(item1) && StrictOrderCollectionEqualityComparer.isCollection(item2)) {
            return collectionComparer.equals(item1, item2);
        }

        return item1.equals(item2);
    }
}
