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#include "qgeotiledmaplabs_p.h"
#include <QtLocation/private/qgeotiledmap_p_p.h>
#include <QtLocation/private/qgeomapobject_p.h>
#include <QtLocation/private/qmappolylineobjectqsg_p_p.h>
#include <QtLocation/private/qmappolygonobjectqsg_p_p.h>
#include <QtLocation/private/qmapcircleobjectqsg_p_p.h>
#include <QtLocation/private/qmaprouteobjectqsg_p_p.h>
#include <QtLocation/private/qmapiconobjectqsg_p_p.h>
#include <QtLocation/private/qdeclarativepolylinemapitem_p.h>
#include <QtLocation/private/qgeomapobjectqsgsupport_p.h>
#include <QtPositioning/private/qlocationutils_p.h>
#include <math.h>

QT_BEGIN_NAMESPACE

class QGeoTiledMapLabsPrivate : public QGeoTiledMapPrivate
{
    Q_DECLARE_PUBLIC(QGeoTiledMapLabs)
public:
    QGeoTiledMapLabsPrivate(QGeoTiledMappingManagerEngine *engine, QGeoTiledMapLabs *map);
    virtual ~QGeoTiledMapLabsPrivate();

    QGeoMapObjectPrivate *createMapObjectImplementation(QGeoMapObject *obj) override;
    virtual QList<QGeoMapObject *> mapObjects() const override;
    void removeMapObject(QGeoMapObject *obj);
    QList<QObject *>mapObjectsAt(const QGeoCoordinate &coordinate) const;

    void updateMapObjects(QSGNode *root, QQuickWindow *window);
    void updateObjectsGeometry();

protected:
    void changeViewportSize(const QSize &size) override;
    void changeCameraData(const QGeoCameraData &oldCameraData) override;
    void changeActiveMapType(const QGeoMapType mapType) override;

    QGeoMapObjectQSGSupport m_qsgSupport;
};

QGeoTiledMapLabsPrivate::QGeoTiledMapLabsPrivate(QGeoTiledMappingManagerEngine *engine, QGeoTiledMapLabs *map)
    : QGeoTiledMapPrivate(engine)
{
    m_qsgSupport.m_map = map;
}

QGeoTiledMapLabsPrivate::~QGeoTiledMapLabsPrivate()
{

}

QGeoMapObjectPrivate *QGeoTiledMapLabsPrivate::createMapObjectImplementation(QGeoMapObject *obj)
{
    return m_qsgSupport.createMapObjectImplementationPrivate(obj);
}

QList<QGeoMapObject *> QGeoTiledMapLabsPrivate::mapObjects() const
{
    return m_qsgSupport.mapObjects();
}

void QGeoTiledMapLabsPrivate::removeMapObject(QGeoMapObject *obj)
{
    m_qsgSupport.removeMapObject(obj);
}

QList<QObject *> QGeoTiledMapLabsPrivate::mapObjectsAt(const QGeoCoordinate &coordinate) const
{
    // ToDo: use a space partitioning strategy
    QList<QObject *> res;
    for (const auto o: mapObjects()) {
        // explicitly handle lines
        bool contains = false;
        if (o->type() == QGeoMapObject::PolylineType ) {
            QMapPolylineObject *mpo = static_cast<QMapPolylineObject *>(o);
            qreal mpp = QLocationUtils::metersPerPixel(m_cameraData.zoomLevel(), coordinate);
            QGeoPath path = o->geoShape();
            path.setWidth(mpp * mpo->border()->width());
            contains = path.contains(coordinate);
        } else if (o->type() == QGeoMapObject::RouteType) {
            qreal mpp = QLocationUtils::metersPerPixel(m_cameraData.zoomLevel(), coordinate);
            QGeoPath path = o->geoShape();
            path.setWidth(mpp * 4); // MapRouteObjectQSG has a hardcoded 4 pixels width;
            contains = path.contains(coordinate);
        } else {
            contains = o->geoShape().contains(coordinate);
        }

        if (contains)
            res.append(o);
    }
    return res;
}

void QGeoTiledMapLabsPrivate::updateMapObjects(QSGNode *root, QQuickWindow *window)
{
    m_qsgSupport.updateMapObjects(root, window);
}

void QGeoTiledMapLabsPrivate::updateObjectsGeometry()
{
    m_qsgSupport.updateObjectsGeometry();
}

void QGeoTiledMapLabsPrivate::changeViewportSize(const QSize &size)
{
    updateObjectsGeometry();
    QGeoTiledMapPrivate::changeViewportSize(size);
}

void QGeoTiledMapLabsPrivate::changeCameraData(const QGeoCameraData &oldCameraData)
{
    updateObjectsGeometry();
    QGeoTiledMapPrivate::changeCameraData(oldCameraData);
}

void QGeoTiledMapLabsPrivate::changeActiveMapType(const QGeoMapType mapType)
{
    updateObjectsGeometry();
    QGeoTiledMapPrivate::changeActiveMapType(mapType);
}


/*
    QGeoTiledMapLabs
*/


QGeoTiledMapLabs::QGeoTiledMapLabs(QGeoTiledMappingManagerEngine *engine, QObject *parent)
    : QGeoTiledMap(*new QGeoTiledMapLabsPrivate(engine, this), engine, parent)
{

}

QGeoTiledMapLabs::~QGeoTiledMapLabs()
{

}

bool QGeoTiledMapLabs::createMapObjectImplementation(QGeoMapObject *obj)
{
    Q_D(QGeoTiledMapLabs);
    return d->m_qsgSupport.createMapObjectImplementation(obj, d);
}

QSGNode *QGeoTiledMapLabs::updateSceneGraph(QSGNode *node, QQuickWindow *window)
{
    Q_D(QGeoTiledMapLabs);
    QSGNode *root = QGeoTiledMap::updateSceneGraph(node, window);
    d->updateMapObjects(root, window);
    return root;
}

void QGeoTiledMapLabs::removeMapObject(QGeoMapObject *obj)
{
    Q_D(QGeoTiledMapLabs);
    d->removeMapObject(obj);
}

QList<QObject *> QGeoTiledMapLabs::mapObjectsAt(const QGeoCoordinate &coordinate) const
{
    Q_D(const QGeoTiledMapLabs);
    return d->mapObjectsAt(coordinate);
}

QGeoTiledMapLabs::QGeoTiledMapLabs(QGeoTiledMapLabsPrivate &dd, QGeoTiledMappingManagerEngine *engine, QObject *parent)
    : QGeoTiledMap(dd, engine, parent)
{

}

QT_END_NAMESPACE