#include <QAction>
#include <QPainter>
#include <QPen>
#include <QTimer>
#include <QDebug>
#include <cmath>
#ifdef _WIN32
#include "round.h"
#endif /* _WIN32 */
#include "phasestoolbar.h"
#include "pixmapgenerator.h"

#include "pb/command_set_active_phase.pb.h"
#include "pb/command_next_turn.pb.h"
#include "pb/command_set_card_attr.pb.h"
#include "pb/command_draw_cards.pb.h"

PhaseButton::PhaseButton(const QString &_name, QGraphicsItem *parent, QAction *_doubleClickAction, bool _highlightable)
    : QObject(), QGraphicsItem(parent), name(_name), active(false), highlightable(_highlightable), activeAnimationCounter(0), doubleClickAction(_doubleClickAction), width(50)
{
    if (highlightable) {
        activeAnimationTimer = new QTimer(this);
        connect(activeAnimationTimer, SIGNAL(timeout()), this, SLOT(updateAnimation()));
        activeAnimationTimer->setSingleShot(false);
    } else
        activeAnimationCounter = 9.0;
    
    setCacheMode(DeviceCoordinateCache);
}

QRectF PhaseButton::boundingRect() const
{
    return QRectF(0, 0, width, width);
}

void PhaseButton::paint(QPainter *painter, const QStyleOptionGraphicsItem * /*option*/, QWidget * /*widget*/)
{
    QRectF iconRect = boundingRect().adjusted(3, 3, -3, -3);
    QRectF translatedIconRect = painter->combinedTransform().mapRect(iconRect);
    qreal scaleFactor = translatedIconRect.width() / iconRect.width();
    QPixmap iconPixmap = PhasePixmapGenerator::generatePixmap(round(translatedIconRect.height()), name);
    
    painter->setBrush(QColor(220 * (activeAnimationCounter / 10.0), 220 * (activeAnimationCounter / 10.0), 220 * (activeAnimationCounter / 10.0)));
    painter->setPen(Qt::gray);
    painter->drawRect(0, 0, width - 1, width - 1);
    painter->save();
    painter->resetTransform();
    painter->drawPixmap(iconPixmap.rect().translated(round(3 * scaleFactor), round(3 * scaleFactor)), iconPixmap, iconPixmap.rect());
    painter->restore();
    
    painter->setBrush(QColor(0, 0, 0, 255 * ((10 - activeAnimationCounter) / 15.0)));
    painter->setPen(Qt::gray);
    painter->drawRect(0, 0, width - 1, width - 1);
}

void PhaseButton::setWidth(double _width)
{
    prepareGeometryChange();
    width = _width;
}

void PhaseButton::setActive(bool _active)
{
    if ((active == _active) || !highlightable)
        return;
    
    active = _active;
    activeAnimationTimer->start(25);
}

void PhaseButton::updateAnimation()
{
    if (!highlightable)
        return;
    
    if (active) {
        if (++activeAnimationCounter >= 10)
            activeAnimationTimer->stop();
    } else {
        if (--activeAnimationCounter <= 0)
            activeAnimationTimer->stop();
    }
    update();
}

void PhaseButton::mousePressEvent(QGraphicsSceneMouseEvent * /*event*/)
{
    emit clicked();
}

void PhaseButton::mouseDoubleClickEvent(QGraphicsSceneMouseEvent * /*event*/)
{
    triggerDoubleClickAction();
}

void PhaseButton::triggerDoubleClickAction()
{
    if (doubleClickAction)
        doubleClickAction->trigger();
}

PhasesToolbar::PhasesToolbar(QGraphicsItem *parent)
    : QGraphicsItem(parent), width(100), height(100), ySpacing(1), symbolSize(8)
{
    QAction *aUntapAll = new QAction(this);
    connect(aUntapAll, SIGNAL(triggered()), this, SLOT(actUntapAll()));
    QAction *aDrawCard = new QAction(this);
    connect(aDrawCard, SIGNAL(triggered()), this, SLOT(actDrawCard()));
    
    PhaseButton *untapButton = new PhaseButton("untap", this, aUntapAll);
    PhaseButton *upkeepButton = new PhaseButton("upkeep", this);
    PhaseButton *drawButton = new PhaseButton("draw", this, aDrawCard);
    PhaseButton *main1Button = new PhaseButton("main1", this);
    PhaseButton *combatStartButton = new PhaseButton("combat_start", this);
    PhaseButton *combatAttackersButton = new PhaseButton("combat_attackers", this);
    PhaseButton *combatBlockersButton = new PhaseButton("combat_blockers", this);
    PhaseButton *combatDamageButton = new PhaseButton("combat_damage", this);
    PhaseButton *combatEndButton = new PhaseButton("combat_end", this);
    PhaseButton *main2Button = new PhaseButton("main2", this);
    PhaseButton *cleanupButton = new PhaseButton("cleanup", this);
    
    buttonList << untapButton << upkeepButton << drawButton << main1Button << combatStartButton
        << combatAttackersButton << combatBlockersButton << combatDamageButton << combatEndButton
        << main2Button << cleanupButton;
    
    for (int i = 0; i < buttonList.size(); ++i)
        connect(buttonList[i], SIGNAL(clicked()), this, SLOT(phaseButtonClicked()));
    
    nextTurnButton = new PhaseButton("nextturn", this, 0, false);
    connect(nextTurnButton, SIGNAL(clicked()), this, SLOT(actNextTurn()));
    
    rearrangeButtons();
    
    retranslateUi();
}

QRectF PhasesToolbar::boundingRect() const
{
    return QRectF(0, 0, width, height);
}

void PhasesToolbar::retranslateUi()
{
    for (int i = 0; i < buttonList.size(); ++i)
        buttonList[i]->setToolTip(getLongPhaseName(i));
}

QString PhasesToolbar::getLongPhaseName(int phase) const
{
    switch (phase) {
        case 0: return tr("Untap step");
        case 1: return tr("Upkeep step");
        case 2: return tr("Draw step");
        case 3: return tr("First main phase");
        case 4: return tr("Beginning of combat step");
        case 5: return tr("Declare attackers step");
        case 6: return tr("Declare blockers step");
        case 7: return tr("Combat damage step");
        case 8: return tr("End of combat step");
        case 9: return tr("Second main phase");
        case 10: return tr("End of turn step");
        default: return QString();
    }
}

void PhasesToolbar::paint(QPainter *painter, const QStyleOptionGraphicsItem * /*option*/, QWidget * /*widget*/)
{
    painter->fillRect(boundingRect(), QColor(50, 50, 50));
}

const double PhasesToolbar::marginSize = 3;

void PhasesToolbar::rearrangeButtons()
{
    for (int i = 0; i < buttonList.size(); ++i)
        buttonList[i]->setWidth(symbolSize);
    nextTurnButton->setWidth(symbolSize);
    
    double y = marginSize;
    buttonList[0]->setPos(marginSize, y);
    buttonList[1]->setPos(marginSize, y += symbolSize);
    buttonList[2]->setPos(marginSize, y += symbolSize);
    y += ySpacing;
    buttonList[3]->setPos(marginSize, y += symbolSize);
    y += ySpacing;
    buttonList[4]->setPos(marginSize, y += symbolSize);
    buttonList[5]->setPos(marginSize, y += symbolSize);
    buttonList[6]->setPos(marginSize, y += symbolSize);
    buttonList[7]->setPos(marginSize, y += symbolSize);
    buttonList[8]->setPos(marginSize, y += symbolSize);
    y += ySpacing;
    buttonList[9]->setPos(marginSize, y += symbolSize);
    y += ySpacing;
    buttonList[10]->setPos(marginSize, y += symbolSize);
    y += ySpacing;
    y += ySpacing;
    nextTurnButton->setPos(marginSize, y += symbolSize);
}

void PhasesToolbar::setHeight(double _height)
{
    prepareGeometryChange();
    
    height = _height;
    ySpacing = (height - 2 * marginSize) / (buttonCount * 5 + spaceCount);
    symbolSize = ySpacing * 5;
    width = symbolSize + 2 * marginSize;
    
    rearrangeButtons();
}

void PhasesToolbar::setActivePhase(int phase)
{
    if (phase >= buttonList.size())
        return;
    
    for (int i = 0; i < buttonList.size(); ++i)
        buttonList[i]->setActive(i == phase);
}

void PhasesToolbar::phaseButtonClicked()
{
    PhaseButton *button = qobject_cast<PhaseButton *>(sender());
    if (button->getActive())
        button->triggerDoubleClickAction();
    
    Command_SetActivePhase cmd;
    cmd.set_phase(buttonList.indexOf(button));
    
    emit sendGameCommand(cmd, -1);
}

void PhasesToolbar::actNextTurn()
{
    emit sendGameCommand(Command_NextTurn(), -1);
}

void PhasesToolbar::actUntapAll()
{
    Command_SetCardAttr cmd;
    cmd.set_zone("table");
    cmd.set_attribute(AttrTapped);
    cmd.set_attr_value("0");
    
    emit sendGameCommand(cmd, -1);
}

void PhasesToolbar::actDrawCard()
{
    Command_DrawCards cmd;
    cmd.set_number(1);
    
    emit sendGameCommand(cmd, -1);
}