#ifndef MV2DELEMENTELEVATOR_H
#define MV2DELEMENTELEVATOR_H

#include "MV2DElement.h"
#include "HasMoveableNodes.h"

#include "MapViewElementHelper.h"
#include <Indoor/floorplan/v2/Floorplan.h>

#include "../../UIHelper.h"

class MV2DElementElevator : public MV2DElement, public HasMoveableNodes {

private:

	Floorplan::IndoorMap* map;
	Floorplan::Floor* floor;
	Floorplan::Elevator* elevator;

public:

	/** ctor with the AP to render/edit */
	MV2DElementElevator(Floorplan::IndoorMap* map, Floorplan::Floor* floor, Floorplan::Elevator* elevator) : map(map), floor(floor), elevator(elevator) {;}


	BBox2 getBoundingBox() const override {
		BBox2 bbox;
		const float max = std::max(elevator->width, elevator->depth);
		bbox.add(Point2(elevator->center.x, elevator->center.y));
		bbox.grow(Point2(max/2, max/2));
		return bbox;
	}

	/** get the element's minimal distance (nearest whatsoever) to the given point */
	ClickDist getMinDistanceXY(const Point2 p) const override {
//		std::vector<Point2> points = elevator->getPoints().points;
//		points.push_back(elevator->center);
//		auto it minEl = std::min_element(points.begin(), points.end(),
		return ClickDist(p.getDistance(elevator->center), ClickDistType::DIRECT);
	}

	/** repaint me */
	void paint(Painter& p) override {

		// area
		const Floorplan::Polygon2 poly = elevator->getPoints();
		p.setPenBrush(Qt::gray, Qt::lightGray);
		p.drawPolygon(poly.points);

		// outline
		QPen pen; pen.setWidth(2); pen.setColor(QColor(0,0,0));

		if (!elevatorEndConnected(map, floor, elevator))	{pen.setColor(QColor(255,0,0));}
		if (elevator->height_m == 0)						{pen.setColor(QColor(255,0,0));}

		p.setPenBrush(pen, Qt::NoBrush);
		//p.drawLine(poly.points[0], poly.points[1]);
		p.drawLine(poly.points[1], poly.points[2]);
		p.drawLine(poly.points[2], poly.points[3]);
		p.drawLine(poly.points[3], poly.points[0]);

		if (selectedUserIdx == 0) {
			p.setPenBrush(Qt::black, CFG::SEL_COLOR);
			p.drawCircle(elevator->center);
		} else if (hasFocus()) {
			p.setPenBrush(Qt::black, Qt::NoBrush);
			p.drawCircle(elevator->center);
		} else {
			//p.setPenBrush(Qt::gray, Qt::NoBrush);
			//p.drawCircle(elevator->center);
			p.drawCircle_px(elevator->center, 3);
		}

	}

	/** is the given elevator's end connected to ANY of the floorplan's floors? */
	static inline bool elevatorEndConnected(const Floorplan::IndoorMap* map, const Floorplan::Floor* floor, const Floorplan::Elevator* e) {
		const int elevatorEnd_cm = std::round( (floor->atHeight + e->height_m) * 100 );
		std::vector<int> floorsAtHeight_cm;
		for (const Floorplan::Floor* f : map->floors) {
			const int height_cm = std::round(f->atHeight*100);
			floorsAtHeight_cm.push_back(height_cm);
		}
		const bool connected = std::find(floorsAtHeight_cm.begin(), floorsAtHeight_cm.end(), elevatorEnd_cm) != floorsAtHeight_cm.end();
		return connected;
	}

	virtual std::vector<MoveableNode> getMoveableNodes() const override {
		return { MoveableNode(0, elevator->center) };
	}

	virtual void onNodeMove(MapView2D* v, const int userIdx, const Point2 newPos) override {
		(void) v;
		if (userIdx == 0) {elevator->center.x = newPos.x; elevator->center.y = newPos.y;}
	}


	virtual void mousePressed(MapView2D* v, const Point2 p) override {
		(void) v;
		(void) p;
	}

	virtual void mouseMove(MapView2D* v, const Point2 p) override {
		(void) v;
		(void) p;
	}

	virtual void mouseReleased(MapView2D* v, const Point2 p) override {
		(void) v;
		(void) p;
	}

	virtual bool keyPressEvent(MapView2D* v, QKeyEvent *e) override {
		(void) v;
		(void) e;
		return false;
	}

	virtual void onFocus() override {
		;
	}

	virtual void onUnfocus() override {
		;
	}

};


#endif // MV2DELEMENTELEVATOR_H