/*
 * 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.eclipse.aether.internal.impl;

public final class PrioritizedComponent<T> implements Comparable<PrioritizedComponent<?>> {

    private final T component;

    private final Class<?> type;

    private final float priority;

    private final int index;

    PrioritizedComponent(T component, Class<?> type, float priority, int index) {
        this.component = component;
        this.type = type;
        this.priority = priority;
        this.index = index;
    }

    public T getComponent() {
        return component;
    }

    public Class<?> getType() {
        return type;
    }

    public float getPriority() {
        return priority;
    }

    public boolean isDisabled() {
        return Float.isNaN(priority);
    }

    public int compareTo(PrioritizedComponent<?> o) {
        int rel = (isDisabled() ? 1 : 0) - (o.isDisabled() ? 1 : 0);
        if (rel == 0) {
            rel = Float.compare(o.priority, priority);
            if (rel == 0) {
                rel = index - o.index;
            }
        }
        return rel;
    }

    @Override
    public String toString() {
        return priority + " (#" + index + "): " + component;
    }
}
