#include <QApplication>

#include <typeinfo>

#include "geometry.h"		// for addBBox

#include "vymmodel.h"

extern Settings settings;

VymModel::VymModel() 

{

//    cout << "Const VymModel\n";

}

VymModel::~VymModel() 

{

    //cout << "Destr VymModel\n";

	clear();

}	

void VymModel::clear() 

{

	while (!mapCenters.isEmpty())

		delete mapCenters.takeFirst();

}

void VymModel::init () 

{

	addMapCenter();

	// animations

	animationUse=settings.readBoolEntry("/animation/use",false);

	animationTicks=settings.readNumEntry("/animation/ticks",10);

	animationInterval=settings.readNumEntry("/animation/interval",50);

	animObjList.clear();

	animationTimer=new QTimer (this);

	connect(animationTimer, SIGNAL(timeout()), this, SLOT(animate()));

}

void VymModel::setMapEditor(MapEditor *me)

{

	mapEditor=me;

	for (int i=0; i<mapCenters.count(); i++)

		mapCenters.at(i)->setMapEditor(mapEditor);

}

MapEditor* VymModel::getMapEditor()

{

	return mapEditor;

}

void VymModel::setVersion (const QString &s)

{

	version=s;

}

void VymModel::setAuthor (const QString &s)

{

	author=s;

}

QString VymModel::getAuthor()

{

	return author;

}

void VymModel::setComment (const QString &s)

{

	comment=s;

}

QString VymModel::getComment ()

{

	return comment;

}

QString VymModel::getDate ()

{

	return QDate::currentDate().toString ("yyyy-MM-dd");

}

void VymModel::setScene (QGraphicsScene *s)

{

	mapScene=s;

    init();	// Here we have a mapScene set, 

			// which is (still) needed to create MapCenters

}

QGraphicsScene* VymModel::getScene ()

{

	return mapScene;

}

MapCenterObj* VymModel::addMapCenter()

{

	return addMapCenter (QPointF(0,0));

}

MapCenterObj* VymModel::addMapCenter(QPointF absPos)

{

	MapCenterObj *mapCenter = new MapCenterObj(mapScene);

	mapCenter->move (absPos);

    mapCenter->setVisibility (true);

	mapCenter->setHeading (QApplication::translate("Heading of mapcenter in new map", "New map"));

	mapCenter->setMapEditor(mapEditor);		//FIXME needed to get defLinkStyle, mapLinkColorHint ... for later added objects

	mapCenters.append(mapCenter);

	return mapCenter;

}

MapCenterObj *VymModel::removeMapCenter(MapCenterObj* mco)

{

	int i=mapCenters.indexOf (mco);

	if (i>=0)

	{

		mapCenters.removeAt (i);

		delete (mco);

		if (i>0) return mapCenters.at(i-1);	// Return previous MCO

	}

	return NULL;

}

MapCenterObj *VymModel::getMapCenterNum (int i)

{

	if (i>mapCenters.count()-1 || i<0)

		return NULL;

	else

		return mapCenters.at(i);

}

int VymModel::countMapCenters()

{

	return mapCenters.count();

}

int VymModel::countBranches()

{

	uint b=0;

	BranchObj *bo=first();

	while (bo) 

	{

		b++;

		bo=next(bo);

	}

	return b;

}

BranchObj* VymModel::first()

{

	if (mapCenters.count()>0) 

		return mapCenters.first();

	else	

		return NULL;

}

BranchObj* VymModel::next(BranchObj *bo_start)

{

	BranchObj *rbo;

	BranchObj *bo=bo_start;

	if (bo)

	{

		// Try to find next branch in current MapCenter

		rbo=bo->next();

		if (rbo) return rbo;

		// Try to find MapCenter of bo

		while (bo->getDepth()>0) bo=(BranchObj*)bo->getParObj();

		// Try to find next MapCenter

		int i=mapCenters.indexOf ((MapCenterObj*)bo);

		if (i+2 > mapCenters.count() || i<0) return NULL;

		if (mapCenters.at(i+1)!=bo_start)

			return mapCenters.at(i+1);

	} 

	return NULL;

}

LinkableMapObj* VymModel::findMapObj(QPointF p, LinkableMapObj *excludeLMO)

{

	LinkableMapObj *lmo;

	for (int i=0;i<mapCenters.count(); i++)

	{

		lmo=mapCenters.at(i)->findMapObj (p,excludeLMO);

		if (lmo) return lmo;

	}

	return NULL;

}

LinkableMapObj* VymModel::findObjBySelect(const QString &s)

{

	LinkableMapObj *lmo;

	if (!s.isEmpty() )

	{

		QString part;

		QString typ;

		QString num;

		part=s.section(",",0,0);

		typ=part.left (2);

		num=part.right(part.length() - 3);

		if (typ=="mc" && num.toInt()>=0 && num.toInt() <mapCenters.count() )

			return mapCenters.at(num.toInt() );

	}		

	for (int i=0; i<mapCenters.count(); i++)

	{

		lmo=mapCenters.at(i)->findObjBySelect(s);

		if (lmo) return lmo;

	}	

	return NULL;

}

LinkableMapObj* VymModel::findID (const QString &s)

{

	LinkableMapObj *lmo;

	for (int i=0; i<mapCenters.count(); i++)

	{

		lmo=mapCenters.at(i)->findID (s);

		if (lmo) return lmo;

	}	

	return NULL;

}

QString VymModel::saveToDir (const QString &tmpdir,const QString &prefix, int verbose, const QPointF &offset)

{

    QString s;

	for (int i=0; i<mapCenters.count(); i++)

		s+=mapCenters.at(i)->saveToDir (tmpdir,prefix,verbose,offset);

    return s;

}

//////////////////////////////////////////////

// View related

//////////////////////////////////////////////

void VymModel::updateRelPositions()

{

	for (int i=0; i<mapCenters.count(); i++)

		mapCenters.at(i)->updateRelPositions();

}

void VymModel::reposition()

{

	for (int i=0;i<mapCenters.count(); i++)

		mapCenters.at(i)->reposition();	//	for positioning heading

}

QPolygonF VymModel::shape(BranchObj *bo)

{

	// Creating (arbitrary) shapes

	QPolygonF p;

	QRectF rb=bo->getBBox();

	if (bo->getDepth()==0)

	{

		// Just take BBox of this mapCenter

		p<<rb.topLeft()<<rb.topRight()<<rb.bottomRight()<<rb.bottomLeft();

		return p;

	}

	// Take union of BBox and TotalBBox 

	QRectF ra=bo->getTotalBBox();

	if (bo->getOrientation()==LinkableMapObj::LeftOfCenter)

		p   <<ra.bottomLeft()

			<<ra.topLeft()

			<<QPointF (rb.topLeft().x(), ra.topLeft().y() )

			<<rb.topRight()

			<<rb.bottomRight()

			<<QPointF (rb.bottomLeft().x(), ra.bottomLeft().y() ) ;

	else		

		p   <<ra.bottomRight()

			<<ra.topRight()

			<<QPointF (rb.topRight().x(), ra.topRight().y() )

			<<rb.topLeft()

			<<rb.bottomLeft()

			<<QPointF (rb.bottomRight().x(), ra.bottomRight().y() ) ;

	return p;		

}

void VymModel::moveAway(LinkableMapObj *lmo)

{

	// Autolayout:

	//

	// Move all branches and MapCenters away from lmo 

	// to avoid collisions 

	QPolygonF pA;

	QPolygonF pB;

	BranchObj *boA=(BranchObj*)lmo;

	BranchObj *boB;

	for (int i=0; i<mapCenters.count(); i++)

	{

		boB=mapCenters.at(i);

		pA=shape (boA);

		pB=shape (boB);

		PolygonCollisionResult r = PolygonCollision(pA, pB, QPoint(0,0));

		cout <<"------->"

			<<"="<<r.intersect

			<<"  ("<<qPrintable(boA->getHeading() )<<")"

			<<"  with ("<< qPrintable (boB->getHeading() )

			<<")  willIntersect"

			<<r.willIntersect 

			<<"  minT="<<r.minTranslation<<endl<<endl;

	}

}

void VymModel::animate()

{

	animationTimer->stop();

	BranchObj *bo;

	int i=0;

	while (i<animObjList.size() )

	{

		bo=(BranchObj*)animObjList.at(i);

		if (!bo->animate())

		{

			if (i>=0) animObjList.removeAt(i);

			i--;

		}

		bo->reposition();

		i++;

	} 

	mapEditor->updateSelection();

	mapScene->update();

	if (!animObjList.isEmpty() ) animationTimer->start();

}

void VymModel::startAnimation(const QPointF &start, const QPointF &dest)

{

	BranchObj *bo=getSelectedBranch();

	if (bo && bo->getDepth()>0) 

	{

		AnimPoint ap;

		ap.setStart (start);

		ap.setDest  (dest);

		ap.setTicks (animationTicks);

		ap.setAnimated (true);

		bo->setAnimation (ap);

		animObjList.append( bo );

		animationTimer->setSingleShot (true);

		animationTimer->start(animationInterval);

	}

}

void VymModel::stopAnimation(MapObj *mo)

{

	int i=animObjList.indexOf(mo);

    if (i>=0)

		animObjList.removeAt (i);

}

//////////////////////////////////////////////

// Selection related

//////////////////////////////////////////////

// Only as long as we dont have Model/View yet

LinkableMapObj* VymModel::getSelection()

{

	return mapEditor->getSelection();

}

BranchObj* VymModel::getSelectedBranch()

{

	return mapEditor->getSelectedBranch();

}

bool VymModel::select (const QString &s)

{

	return mapEditor->select (s);

}

QString VymModel::getSelectString (LinkableMapObj *lmo)

{

	QString s;

	if (!lmo) return s;

	if (typeid(*lmo)==typeid(BranchObj) ||

		typeid(*lmo)==typeid(MapCenterObj) )

	{	

		LinkableMapObj *par=lmo->getParObj();

		if (par)

		{

			if (lmo->getDepth() ==1)

				// Mainbranch, return 

				s= "bo:" + QString("%1").arg(((BranchObj*)lmo)->getNum());

			else	

				// Branch, call myself recursively

				s= getSelectString(par) + ",bo:" + QString("%1").arg(((BranchObj*)lmo)->getNum());

		} else

		{

			// MapCenter

			int i=mapCenters.indexOf ((MapCenterObj*)lmo);

			if (i>=0) s=QString("mc:%1").arg(i);

		}	

	}	

	return s;

}

void VymModel::setHideTmp (HideTmpMode mode)

{

	for (int i=0;i<mapCenters.count(); i++)

		mapCenters.at(i)->setHideTmp (mode);	

}

QRectF VymModel::getTotalBBox()

{

	QRectF r;

	for (int i=0;i<mapCenters.count(); i++)

		r=addBBox (mapCenters.at(i)->getTotalBBox(), r);

	return r;	

}