/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * licenses this file to you 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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 org.apereo.portal.events.aggr.portletlayout;

import org.apereo.portal.events.aggr.BaseGroupedAggregationDiscriminatorImpl;
import org.apereo.portal.events.aggr.groups.AggregatedGroupMapping;
import org.apereo.portal.events.aggr.portlets.AggregatedPortletMapping;
import org.apereo.portal.utils.ComparableExtractingComparator;

/**
 * Basic impl of {@link PortletLayoutAggregationDiscriminator}
 *
 */
public class PortletLayoutAggregationDiscriminatorImpl
        extends BaseGroupedAggregationDiscriminatorImpl
        implements PortletLayoutAggregationDiscriminator {
    private static final long serialVersionUID = 1L;

    private final AggregatedPortletMapping portletMapping;
    private int hashCode = 0;

    public PortletLayoutAggregationDiscriminatorImpl(PortletLayoutAggregation aggregationData) {
        super(aggregationData.getAggregatedGroup());
        portletMapping = aggregationData.getPortletMapping();
    }

    public PortletLayoutAggregationDiscriminatorImpl(
            AggregatedGroupMapping aggregatedGroupMapping,
            AggregatedPortletMapping portletMapping) {
        super(aggregatedGroupMapping);
        this.portletMapping = portletMapping;
    }

    @Override
    public final AggregatedPortletMapping getPortletMapping() {
        return this.portletMapping;
    }

    @Override
    public int hashCode() {
        int h = this.hashCode;
        if (h == 0) {
            final int prime = 31;
            h = super.hashCode();
            h = prime * h + ((portletMapping == null) ? 0 : portletMapping.hashCode());
            this.hashCode = h;
        }
        return h;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) return true;
        if (!super.equals(obj)) return false;
        if (getClass() != obj.getClass()) return false;
        PortletLayoutAggregationDiscriminator other = (PortletLayoutAggregationDiscriminator) obj;
        if (portletMapping == null) {
            if (other.getPortletMapping() != null) return false;
        } else if (!portletMapping.equals(other.getPortletMapping())) return false;
        return true;
    }

    // Compare discriminators based on the group name and tab information
    public static class Comparator
            extends ComparableExtractingComparator<PortletLayoutAggregationDiscriminator, String> {

        public static Comparator INSTANCE = new Comparator();

        @Override
        protected String getComparable(PortletLayoutAggregationDiscriminator o) {
            return o.getAggregatedGroup().getGroupName() + o.getPortletMapping().getFname();
        }
    }

    @Override
    public String toString() {
        return this.getClass().getSimpleName()
                + "["
                + super.toString()
                + ", portletMapping="
                + portletMapping
                + "]";
    }
}