#include "qchart.h"
#include "qchartaxis.h"
#include "chartpresenter_p.h"
#include "chartdataset_p.h"
#include "charttheme_p.h"
//series
#include "barchartseries.h"
#include "stackedbarchartseries.h"
#include "percentbarchartseries.h"
#include "qlinechartseries.h"
#include "qpieseries.h"
#include "qscatterseries.h"
//items
#include "axisitem_p.h"
#include "bargroup.h"
#include "stackedbargroup.h"
#include "linechartitem_p.h"
#include "percentbargroup.h"
#include "linechartanimationitem_p.h"
#include "piepresenter.h"
#include "scatterpresenter.h"

QTCOMMERCIALCHART_BEGIN_NAMESPACE

ChartPresenter::ChartPresenter(QChart* chart,ChartDataSet* dataset):QObject(chart),
m_chart(chart),
m_dataset(dataset),
m_chartTheme(0),
m_domainIndex(0),
m_marginSize(0),
m_axisX(new QChartAxis(this)),
m_axisY(new QChartAxis(this)),
m_rect(QRectF(QPoint(0,0),m_chart->size()))
{
    setChartTheme(QChart::ChartThemeDefault);
    m_axisItems[m_axisX] = new AxisItem(m_axisX,AxisItem::X_AXIS,m_chart);
    m_axisItems[m_axisY] = new AxisItem(m_axisY,AxisItem::Y_AXIS,m_chart);
    createConnections();
}

ChartPresenter::~ChartPresenter()
{
}

void ChartPresenter::createConnections()
{
    QObject::connect(m_chart,SIGNAL(geometryChanged()),this,SLOT(handleGeometryChanged()));
    QObject::connect(m_dataset,SIGNAL(seriesAdded(QChartSeries*)),this,SLOT(handleSeriesAdded(QChartSeries*)));

    QMapIterator<QChartAxis*,AxisItem*> i(m_axisItems);

    while (i.hasNext()) {
        i.next();
        QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),i.value(),SLOT(handleGeometryChanged(const QRectF&)));
        QObject::connect(m_dataset,SIGNAL(domainChanged(const Domain&)),i.value(),SLOT(handleDomainChanged(const Domain&)));
    }
}

void ChartPresenter::handleGeometryChanged()
{
    m_rect = QRectF(QPoint(0,0),m_chart->size());
    m_rect.adjust(m_marginSize,m_marginSize, -m_marginSize, -m_marginSize);
    Q_ASSERT(m_rect.isValid());
    emit geometryChanged(m_rect);
}

int ChartPresenter::margin() const
{
    return m_marginSize;
}

void ChartPresenter::setMargin(int margin)
{
    m_marginSize = margin;
}

void ChartPresenter::handleSeriesAdded(QChartSeries* series)
{
    switch(series->type())
    {
        case QChartSeries::SeriesTypeLine: {
            QLineChartSeries* lineSeries = static_cast<QLineChartSeries*>(series);
            LineChartItem* item = new LineChartAnimationItem(this,lineSeries,m_chart);
            m_chartTheme->decorate(item,lineSeries,m_chartItems.count());
            QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
            QObject::connect(m_dataset,SIGNAL(domainChanged(const Domain&)),item,SLOT(handleDomainChanged(const Domain&)));
            QObject::connect(lineSeries,SIGNAL(changed(int)),item,SLOT(handleModelChanged(int)));
            m_chartItems.insert(series,item);
            break;
        }

        case QChartSeries::SeriesTypeBar: {
            BarChartSeries* barSeries = static_cast<BarChartSeries*>(series);
            BarGroup* item = new BarGroup(*barSeries,m_chart);
            m_chartTheme->decorate(item,barSeries,m_chartItems.count());
            QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
            QObject::connect(m_dataset,SIGNAL(domainChanged(const Domain&)),item,SLOT(handleDomainChanged(const Domain&)));
            QObject::connect(barSeries,SIGNAL(changed(int)),item,SLOT(handleModelChanged(int)));
            m_chartItems.insert(series,item);
            // m_axisXItem->setVisible(false);
            break;
        }

        case QChartSeries::SeriesTypeStackedBar: {

            StackedBarChartSeries* stackedBarSeries = static_cast<StackedBarChartSeries*>(series);
            StackedBarGroup* item = new StackedBarGroup(*stackedBarSeries,m_chart);
            m_chartTheme->decorate(item,stackedBarSeries,m_chartItems.count());
            QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
            QObject::connect(m_dataset,SIGNAL(domainChanged(const Domain&)),item,SLOT(handleDomainChanged(const Domain&)));
            QObject::connect(stackedBarSeries,SIGNAL(changed(int)),item,SLOT(handleModelChanged(int)));
            m_chartItems.insert(series,item);
            break;
        }

        case QChartSeries::SeriesTypePercentBar: {

            PercentBarChartSeries* percentBarSeries = static_cast<PercentBarChartSeries*>(series);
            PercentBarGroup* item = new PercentBarGroup(*percentBarSeries,m_chart);
            m_chartTheme->decorate(item,percentBarSeries ,m_chartItems.count());
            QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
            QObject::connect(m_dataset,SIGNAL(domainChanged(const Domain&)),item,SLOT(handleDomainChanged(const Domain&)));
            QObject::connect(percentBarSeries,SIGNAL(changed(int)),item,SLOT(handleModelChanged(int)));
            m_chartItems.insert(series,item);
            break;
        }
        case QChartSeries::SeriesTypeScatter: {
            QScatterSeries *scatterSeries = qobject_cast<QScatterSeries *>(series);
            ScatterPresenter *scatterPresenter = new ScatterPresenter(scatterSeries, m_chart);
            QObject::connect(this, SIGNAL(geometryChanged(const QRectF&)),
                             scatterPresenter, SLOT(handleGeometryChanged(const QRectF&)));
            QObject::connect(m_dataset, SIGNAL(domainChanged(const Domain&)),
                             scatterPresenter, SLOT(handleDomainChanged(const Domain&)));
//            scatterSeries->d->m_theme = m_chartTheme->themeForSeries();
//            scatterSeries->d->setParentItem(this);
//            scatterSeries->d->m_boundingRect = m_rect.adjusted(margin(),margin(), -margin(), -margin());
            m_chartItems.insert(scatterSeries, scatterPresenter);
            break;
        }
        case QChartSeries::SeriesTypePie: {
            QPieSeries *pieSeries = qobject_cast<QPieSeries *>(series);
            PiePresenter* pie = new PiePresenter(m_chart, pieSeries);
            QObject::connect(pieSeries, SIGNAL(changed(const PieChangeSet&)), pie, SLOT(handleSeriesChanged(const PieChangeSet&)));
            QObject::connect(this, SIGNAL(geometryChanged(const QRectF&)), pie, SLOT(handleGeometryChanged(const QRectF&)));
            QObject::connect(m_dataset, SIGNAL(domainChanged(const Domain&)), pie, SLOT(handleDomainChanged(const Domain&)));
            m_chartItems.insert(series, pie);
            break;
        }
        default: {
            qDebug()<< "Series type" << series->type() << "not implemented.";
            break;
        }
    }

    if(m_rect.isValid()) emit geometryChanged(m_rect);
}

void ChartPresenter::handleSeriesChanged(QChartSeries* series)
{
    //TODO:
}

void ChartPresenter::zoomInToRect(const QRectF& rect)
{
    if(!rect.isValid()) return;
    QRectF r = rect.normalized();
    r.translate(-m_marginSize, -m_marginSize);
    Domain domain (m_dataset->domain().subDomain(r,m_rect.width(),m_rect.height()));
    m_dataset->addDomain(domain);
}

void ChartPresenter::zoomIn()
{
    if (!m_dataset->nextDomain()) {
        QRectF rect = m_rect;
        rect.setWidth(rect.width()/2);
        rect.setHeight(rect.height()/2);
        rect.moveCenter(m_rect.center());
        Domain domain (m_dataset->domain().subDomain(rect,m_rect.width(),m_rect.height()));
        m_dataset->addDomain(domain);
    }
}

void ChartPresenter::zoomOut()
{
    m_dataset->previousDomain();
}

void ChartPresenter::zoomReset()
{
    m_dataset->clearDomains();
}

void ChartPresenter::setChartTheme(QChart::ChartTheme theme)
{
    delete m_chartTheme;

    m_chartTheme = ChartTheme::createTheme(theme);

    m_chartTheme->decorate(m_chart);
    QMapIterator<QChartSeries*,ChartItem*> i(m_chartItems);

    int index=0;
    while (i.hasNext()) {
        i.next();
        index++;
        m_chartTheme->decorate(i.value(),i.key(),index);
      }
    }


QChart::ChartTheme ChartPresenter::chartTheme()
{
    return m_chartTheme->id();
}

QChartAxis* ChartPresenter::axisX()
{
   return m_axisX;
}

QChartAxis* ChartPresenter::axisY()
{
   return m_axisY;
}

QChartAxis* ChartPresenter::addAxisX()
{
  //only one axis
  if(m_axisX==0){
      m_axisX = new QChartAxis(this);
      m_axisItems[m_axisX] = new AxisItem(m_axisX,AxisItem::X_AXIS,m_chart);
  }
  return m_axisX;
}

QChartAxis* ChartPresenter::addAxisY()
{
    if(m_axisY==0){
        m_axisY = new QChartAxis(this);
        m_axisItems[m_axisY] = new AxisItem(m_axisY,AxisItem::Y_AXIS,m_chart);
        return m_axisY;
    }

    QChartAxis* axis = new QChartAxis(this);
    m_axisItems[axis] = new AxisItem(axis,AxisItem::Y_AXIS,m_chart);
    return axis;
}

void ChartPresenter::removeAxis(QChartAxis* axis)
{
    AxisItem* item = m_axisItems.take(axis);
    if(item){
        delete item;
        delete axis;
    }
    //reset pointers to default ones
    if(axis == m_axisX) m_axisX=0;
    else if(axis == m_axisY) m_axisY=0;
}

#include "moc_chartpresenter_p.cpp"

QTCOMMERCIALCHART_END_NAMESPACE