/**
 * Copyright (C) 2017-2018 Christian Pierre MOMON <cmomon@april.org>
 *
 * This file is part of (April) Hebdobot.
 *
 * Hebdobot is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Hebdobot 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Hebdobot.  If not, see <http://www.gnu.org/licenses/>
 */
package org.april.hebdobot.model.stats;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;

import org.april.hebdobot.model.stats.ReviewDataComparator.Sorting;

/**
 * The Class Stats.
 */
public class ReviewDatas extends ArrayList<ReviewData>
{
    private static final long serialVersionUID = 326880908257489774L;

    /**
     * Instantiates a new ReviewDatas.
     */
    public ReviewDatas()
    {
        super();
    }

    /**
     * Clean.
     *
     * @return the int
     */
    public int clean()
    {
        int result;

        result = 0;
        Iterator<ReviewData> iterator = iterator();
        while (iterator.hasNext())
        {
            if (iterator.next().getUserCount() < 2)
            {
                iterator.remove();
                result += 1;
            }
        }

        //
        return result;
    }

    /**
     * Gets the last by max user count.
     *
     * @return the last by max user count
     */
    public ReviewData getLastByMaxUserCount()
    {
        ReviewData result;

        if (isEmpty())
        {
            result = null;
        }
        else
        {
            int max = Integer.MIN_VALUE;
            result = null;
            for (ReviewData data : this)
            {
                if (data.getUserCount() > max)
                {
                    max = data.getUserCount();
                    result = data;
                }
            }
        }

        //
        return result;
    }

    /**
     * Gets the max user count.
     *
     * @return the max user count
     */
    public int getMaxUserCount()
    {
        int result;

        if (isEmpty())
        {
            result = 0;
        }
        else
        {
            result = Integer.MIN_VALUE;
            for (ReviewData data : this)
            {
                if (data.getUserCount() > result)
                {
                    result = data.getUserCount();
                }
            }
        }

        //
        return result;
    }

    /**
     * Gets the min user count.
     *
     * @return the min user count
     */
    public int getMinUserCount()
    {
        int result;

        if (isEmpty())
        {
            result = 0;
        }
        else
        {
            result = Integer.MAX_VALUE;
            for (ReviewData data : this)
            {
                if (data.getUserCount() < result)
                {
                    result = data.getUserCount();
                }
            }
        }

        //
        return result;
    }

    /**
     * Reverse.
     */
    public void reverse()
    {
        Collections.reverse(this);
    }

    /**
     * Sort by date.
     */
    public void sortByDate()
    {
        Collections.sort(this, new ReviewDataComparator(Sorting.DATE));
    }

    /**
     * Sort by duration.
     */
    public void sortByDuration()
    {
        Collections.sort(this, new ReviewDataComparator(Sorting.DURATION));
    }

    /**
     * Sort by user count.
     */
    public void sortByUserCount()
    {
        Collections.sort(this, new ReviewDataComparator(Sorting.USERCOUNT));
    }
}