/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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
 *
 *   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 org.optaplanner.examples.curriculumcourse.domain.solver;

import static java.util.Comparator.comparingInt;

import java.util.Comparator;

import org.optaplanner.core.impl.heuristic.selector.common.decorator.SelectionSorterWeightFactory;
import org.optaplanner.examples.curriculumcourse.domain.CourseSchedule;
import org.optaplanner.examples.curriculumcourse.domain.Room;

public class RoomStrengthWeightFactory implements SelectionSorterWeightFactory<CourseSchedule, Room> {

    @Override
    public RoomStrengthWeight createSorterWeight(CourseSchedule schedule, Room room) {
        return new RoomStrengthWeight(room);
    }

    public static class RoomStrengthWeight implements Comparable<RoomStrengthWeight> {

        private static final Comparator<Room> COMPARATOR = comparingInt(Room::getCapacity).thenComparingLong(Room::getId);

        private final Room room;

        public RoomStrengthWeight(Room room) {
            this.room = room;
        }

        @Override
        public int compareTo(RoomStrengthWeight other) {
            return COMPARATOR.compare(room, other.room);
        }
    }
}
