/*
 * © Copyright 2014 – Urheberrechtshinweis
 * Alle Rechte vorbehalten / All Rights Reserved
 *
 * Programmcode ist urheberrechtlich geschuetzt.
 * Das Urheberrecht liegt, soweit nicht ausdruecklich anders gekennzeichnet, bei Frank Ebner.
 * Keine Verwendung ohne explizite Genehmigung.
 * (vgl. § 106 ff UrhG / § 97 UrhG)
 */

#include "MV2DElementElevator.h"

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

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

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


/** 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;
}



MV2DElementElevator::MV2DElementElevator(Floorplan::IndoorMap* map, Floorplan::Floor* floor, Floorplan::Elevator* elevator) : map(map), floor(floor), elevator(elevator) {
	;
}

BBox2 MV2DElementElevator::getBoundingBox() const {
	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;
}

ClickDist MV2DElementElevator::getMinDistanceXY(const Point2 p) const {
//		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);
}

void MV2DElementElevator::paint(Painter& p) {

	// 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]);

}



std::vector<MoveableNode> MV2DElementElevator::getMoveableNodes() const {
	return { MoveableNode(0, elevator->center) };
}

void MV2DElementElevator::onNodeMove(MapView2D* v, const int userIdx, const Point2 newPos) {
	(void) v;
	if (userIdx == 0) {elevator->center.x = newPos.x; elevator->center.y = newPos.y;}
}

void MV2DElementElevator::onNodeMoved(MapView2D* v, const int userIdx, const Point2 newPos) {
	(void) userIdx;
	(void) newPos;
	emit v->onElementChange(this);
}

void MV2DElementElevator::onFocus() {
	;
}

void MV2DElementElevator::onUnfocus() {
	;
}