/*
 *  Copyright (C) 2010-2016 JPEXS, All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3.0 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library.
 */
package com.jpexs.decompiler.flash.helpers.collections;

import java.util.Stack;

/**
 *
 * @author JPEXS
 */
public class FixItemCounterStack extends Stack<Object> {

    private int fixItemCount = Integer.MAX_VALUE;

    public FixItemCounterStack() {
    }

    public Object peek(int index) {
        return super.get(size() - index);
    }

    @Override
    public Object pop() {
        Object result = super.pop();
        int itemCount = size();
        if (itemCount < fixItemCount) {
            fixItemCount = itemCount;
        }
        return result;
    }

    @Override
    public Object remove(int index) {
        if (index < fixItemCount) {
            fixItemCount = index;
        }
        return super.remove(index);
    }

    public boolean allItemsFixed() {
        return size() <= fixItemCount;
    }

    public int getFixItemCount() {
        return fixItemCount;
    }

    @Override
    public void clear() {
        fixItemCount = Integer.MAX_VALUE;
        super.clear();
    }
}