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/*
 * Copyright 2008 Ben Boeckel <MathStuf@gmail.com>
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

// Header include
#include "ATBTimer.h"

// Sigbattle includes
#include "ATBArena.h"

// Sigscript includes
#include "../sigscript/RulesWrapper.h"
#include "../sigscript/SigmodWrapper.h"

// Qt includes
#include <QtCore/QtAlgorithms>
#include <QtCore/QtConcurrentFilter>
#include <QtCore/QtConcurrentMap>
#include <QtCore/QFuture>
#include <QtCore/QMultiMap>
#include <QtCore/QTimer>

bool Sigbattle::compareTimers(TeamMember* const & member1, TeamMember* const & member2)
{
    return member1->timer() < member2->timer();
}

void Sigbattle::increaseMeter(TeamMember* teamMember)
{
    // TODO: Tweak this?
    teamMember->advanceTimer(teamMember->statValue(Sigmod::ST_Speed) / 10);
}

bool Sigbattle::isOverflowed(const TeamMember* teamMember)
{
    // TODO: Tweak threshold?
    return 1000. < teamMember->timer();
}

Sigbattle::ATBTimer::ATBTimer(ATBArena* arena, ActionQueue& actions) :
        QThread(arena),
        m_arena(arena),
        m_actions(actions),
        m_timer(new QTimer(this))
{
    connect(m_timer, SIGNAL(timeout()), this, SLOT(update()));
}

void Sigbattle::ATBTimer::update()
{
    const QList<TeamMember*> active = m_arena->active();
    QList<TeamMember::RequestedAction> actions;
    QtConcurrent::blockingMap(active, increaseMeter);
    QList<TeamMember*> overflow = QtConcurrent::blockingFiltered(active, isOverflowed);
    qSort(overflow.begin(), overflow.end(), compareTimers);
    foreach (TeamMember* teamMember, overflow)
    {
        TeamMember::RequestedAction action = requestDecision(teamMember);
        m_actions.enqueue(action);
        if (m_arena->sigmod()->rules()->pausedATB())
            actions.append(action);
    }
    if (m_arena->sigmod()->rules()->pausedATB())
    {
        m_timer->stop();
        for (QMutableListIterator<TeamMember::RequestedAction> i(actions); i.hasNext(); i.next())
            i.value().second.waitForFinished();
        m_timer->start(50);
    }
}

void Sigbattle::ATBTimer::run()
{
    m_timer->start(50);
    exec();
}