/*
 * Copyright (C) 2000-2009 Stephan Kulow <coolo@kde.org>
 * Copyright (C) 2010 Parker Coates <coates@kde.org>
 *
 * License of original code:
 * -------------------------------------------------------------------------
 *   Permission to use, copy, modify, and distribute this software and its
 *   documentation for any purpose and without fee is hereby granted,
 *   provided that the above copyright notice appear in all copies and that
 *   both that copyright notice and this permission notice appear in
 *   supporting documentation.
 *
 *   This file is provided AS IS with no warranties of any kind.  The author
 *   shall have no liability with respect to the infringement of copyrights,
 *   trade secrets or any patents by this file or any part thereof.  In no
 *   event will the author be liable for any lost revenue or profits or
 *   other special, indirect and consequential damages.
 * -------------------------------------------------------------------------
 *
 * License of modifications/additions made after 2009-01-01:
 * -------------------------------------------------------------------------
 *   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 2 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/>.
 * -------------------------------------------------------------------------
 */

#include "fortyeight.h"

// own
#include "dealerinfo.h"
#include "patsolve/fortyeightsolver.h"
#include "pileutils.h"
#include "speeds.h"
// KF
#include <KLocalizedString>

Fortyeight::Fortyeight(const DealerInfo *di)
    : DealerScene(di)
{
}

void Fortyeight::initialize()
{
    const qreal dist_x = 1.11;
    const qreal smallNeg = -1e-6;

    setDeckContents(2);

    talon = new PatPile(this, 0, QStringLiteral("talon"));
    talon->setPileRole(PatPile::Stock);
    talon->setLayoutPos(7 * dist_x, smallNeg);
    talon->setZValue(20);
    talon->setSpread(0, 0);
    talon->setKeyboardSelectHint(KCardPile::NeverFocus);
    talon->setKeyboardDropHint(KCardPile::NeverFocus);
    connect(talon, &KCardPile::clicked, this, &DealerScene::drawDealRowOrRedeal);

    pile = new PatPile(this, 20, QStringLiteral("pile"));
    pile->setPileRole(PatPile::Waste);
    pile->setLayoutPos(6 * dist_x, smallNeg);
    pile->setLeftPadding(6 * dist_x);
    pile->setWidthPolicy(KCardPile::GrowLeft);
    pile->setSpread(-0.21, 0);
    pile->setKeyboardSelectHint(KCardPile::AutoFocusTop);
    pile->setKeyboardDropHint(KCardPile::NeverFocus);

    for (int i = 0; i < 8; ++i) {
        target[i] = new PatPile(this, 9 + i, QStringLiteral("target%1").arg(i));
        target[i]->setPileRole(PatPile::Foundation);
        target[i]->setLayoutPos(dist_x * i, 0);
        target[i]->setSpread(0, 0);
        target[i]->setKeyboardSelectHint(KCardPile::NeverFocus);
        target[i]->setKeyboardDropHint(KCardPile::ForceFocusTop);
    }

    for (int i = 0; i < 8; ++i) {
        stack[i] = new PatPile(this, 1 + i, QStringLiteral("stack%1").arg(i));
        stack[i]->setPileRole(PatPile::Tableau);
        stack[i]->setLayoutPos(dist_x * i, 1.1);
        stack[i]->setAutoTurnTop(true);
        stack[i]->setSpread(0, 0.25);
        stack[i]->setBottomPadding(1.75);
        stack[i]->setHeightPolicy(KCardPile::GrowDown);
        stack[i]->setKeyboardSelectHint(KCardPile::FreeFocus);
        stack[i]->setKeyboardDropHint(KCardPile::AutoFocusTop);
    }

    setActions(DealerScene::Hint | DealerScene::Demo | DealerScene::Draw);
    setSolver(new FortyeightSolver(this));
}

void Fortyeight::restart(const QList<KCard *> &cards)
{
    lastdeal = false;

    QList<KCard *> cardList = cards;

    for (int r = 0; r < 4; ++r) {
        for (int column = 0; column < 8; ++column) {
            QPointF initPos = stack[column]->pos() - QPointF(0, 2 * deck()->cardHeight());
            addCardForDeal(stack[column], cardList.takeLast(), true, initPos);
        }
    }

    while (!cardList.isEmpty()) {
        KCard *c = cardList.takeFirst();
        c->setPos(talon->pos());
        c->setFaceUp(false);
        talon->add(c);
    }

    startDealAnimation();

    flipCardToPile(talon->topCard(), pile, DURATION_MOVE);

    Q_EMIT newCardsPossible(true);
}

bool Fortyeight::newCards()
{
    if (talon->isEmpty()) {
        if (lastdeal) {
            return false;
        } else {
            lastdeal = true;
            flipCardsToPile(pile->cards(), talon, DURATION_MOVE);
        }
    } else {
        flipCardToPile(talon->topCard(), pile, DURATION_MOVE);
        setKeyboardFocus(pile->topCard());
    }

    if (talon->isEmpty() && lastdeal)
        Q_EMIT newCardsPossible(false);

    return true;
}

void Fortyeight::cardsDroppedOnPile(const QList<KCard *> &cards, KCardPile *pile)
{
    if (cards.size() <= 1) {
        DealerScene::moveCardsToPile(cards, pile, DURATION_MOVE);
        return;
    }

    QList<KCardPile *> freePiles;
    for (int i = 0; i < 8; ++i)
        if (stack[i]->isEmpty() && stack[i] != pile)
            freePiles << stack[i];

    multiStepMove(cards, pile, freePiles, QList<KCardPile *>(), DURATION_MOVE);
}

bool Fortyeight::canPutStore(const KCardPile *pile, const QList<KCard *> &cards) const
{
    int frees = 0;
    for (int i = 0; i < 8; i++)
        if (stack[i]->isEmpty())
            frees++;

    if (pile->isEmpty()) // destination is empty
        frees--;

    if (int(cards.count()) > 1 << frees)
        return false;

    // ok if the target is empty
    if (pile->isEmpty())
        return true;

    KCard *c = cards.first(); // we assume there are only valid sequences

    return pile->topCard()->suit() == c->suit() && pile->topCard()->rank() == c->rank() + 1;
}

bool Fortyeight::checkAdd(const PatPile *pile, const QList<KCard *> &oldCards, const QList<KCard *> &newCards) const
{
    switch (pile->pileRole()) {
    case PatPile::Foundation:
        return checkAddSameSuitAscendingFromAce(oldCards, newCards);
    case PatPile::Tableau:
        return canPutStore(pile, newCards);
    case PatPile::Stock:
    case PatPile::Waste:
    default:
        return false;
    }
}

bool Fortyeight::checkRemove(const PatPile *pile, const QList<KCard *> &cards) const
{
    switch (pile->pileRole()) {
    case PatPile::Waste:
        return cards.first() == pile->topCard();
    case PatPile::Tableau:
        return isSameSuitDescending(cards);
    case PatPile::Foundation:
    case PatPile::Stock:
    default:
        return false;
    }
}

QString Fortyeight::getGameState() const
{
    return QString::number(lastdeal);
}

void Fortyeight::setGameState(const QString &state)
{
    lastdeal = state.toInt();
    Q_EMIT newCardsPossible(!lastdeal || !talon->isEmpty());
}

static class FortyEightDealerInfo : public DealerInfo
{
public:
    FortyEightDealerInfo()
        : DealerInfo(kli18n("Forty & Eight"), FortyAndEightId)
    {
    }

    DealerScene *createGame() const override
    {
        return new Fortyeight(this);
    }
} fortyEightDealerInfo;

#include "moc_fortyeight.cpp"
