#ifndef FLOORPLANLINT_H
#define FLOORPLANLINT_H

#include "Floorplan.h"
#include "../../geo/BBox2.h"

namespace Floorplan {

	class LINT {

	public:

		static void check(IndoorMap* map) {

			for (const Floor* floor : map->floors) {

				// outline present?
				if (floor->outline.empty()) {throw Exception("floor " + floor->name + " has no outline");}

				// check outline
				for (FloorOutlinePolygon* poly : floor->outline) {
					checkOutline(floor, poly);
				}

				// check obstacles
				for (FloorObstacle* obs : floor->obstacles) {
					checkObstacle(floor, obs);
				}

			}

		}

	private:

		/** check a floor's outline */
		static void checkOutline(const Floor* floor, const FloorOutlinePolygon* poly) {

			// number of points valid?
			if (poly->poly.points.size() < 3)		{throw Exception("floor '" + floor->name + "' outline '" + poly->name + "' needs at least 3 edges");}
			if (poly->poly.points.size() > 1024)	{throw Exception("floor '" + floor->name + "' outline '" + poly->name + "' has too many edges");}

			// outline size [bbox] valid?
			BBox2 outline;
			for (const Point2 pt : poly->poly.points) { outline.add(pt); }
			const Point2 size = outline.getSize();
			if (size.x < 1.0 || size.y < 1.0) {throw Exception("floor '" + floor->name + "' outline '" + poly->name + "' seems too small");}

		}

		/** check walls, doors, ... */
		static void checkObstacle(const Floor* floor, const FloorObstacle* fo) {

			// line? -> check
			const FloorObstacleLine* line = dynamic_cast<const FloorObstacleLine*>(fo);
			if (line) {
				const float len_m = line->from.getDistance(line->to);
				if (len_m < 0.15) {
					throw Exception("floor '" + floor->name + "' line-obstacle is too short: " + std::to_string(len_m) + " meter from " + line->from.asString() + " to " + line->to.asString());
				}
			}

			// door? -> check
			const FloorObstacleDoor* door = dynamic_cast<const FloorObstacleDoor*>(fo);
			if (door) {
				const float len_m = door->from.getDistance(door->to);
				if (len_m < 0.40) {
					throw Exception("floor '" + floor->name + "' door is too narrow: " + std::to_string(len_m) + " meter from " + door->from.asString() + " to " + door->to.asString());
				}
			}

		}

	};

}


#endif // FLOORPLANLINT_H