/*
 * © 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)
 */

#ifndef FLOORPLAN_3D_BUILDER_H
#define FLOORPLAN_3D_BUILDER_H

#include "../v2/Floorplan.h"

#include "FloorplanMesh.h"
#include "Obstacle3.h"

#include "Outline.h"
#include "Stairs.h"
#include "Handrails.h"
#include "Objects.h"
#include "Pillars.h"
#include "Doors.h"

#include "Walls.h"
#include "WallsViaCubes.h"
#include "WallsViaCuttedQuads.h"

namespace Floorplan3D {

	class Builder {

		/** the to-be-exported map */
		const Floorplan::IndoorMap* map;

	public:

		bool exportCeilings = true;
		bool exportObstacles = true;
		bool exportStairs = true;
		bool fancyStairs = true;
		bool exportHandrails = true;
		bool exportDoors = true;
	//	bool exportAboveDoors = true;
		bool doorsOpen = false;
		bool exportObjects = true;
		bool exportPillars = true;
		bool exportWallTops = false;
		bool center = false;

		//Walls* walls = new WallsViaCubes();
		//Walls* walls = new WallsViaCuttedQuads();

	public:


		/** ctor */
		Builder(const Floorplan::IndoorMap* map) : map(map) {

		}

		/** get the created mesh */
		FloorplanMesh getMesh() {

			FloorplanMesh mesh;
			mesh.elements = triangulize();

			if (center) {
				BBox3 bb = mesh.getBBox();
				mesh -= Point3(bb.getCenter().x, bb.getCenter().y, 0);
			}

			return mesh;

		}

	private:

		/** get all triangles grouped by obstacle */
		std::vector<Obstacle3D> triangulize() {

			// TODO: filtering??
			std::vector<Floorplan::Floor*> floors = map->floors;

			std::vector<Obstacle3D> res;

			// get the to-be-exported floors (either "all" or "user defined")
			//const std::vector<Floorplan::Floor*>& floors = (exportFloors.empty()) ? (map->floors) : (exportFloors);

			// process each floor
			for (const Floorplan::Floor* f : floors) {

				if (!f->enabled) {continue;}

				// triangulize the floor itself (floor/ceiling)
				if (exportCeilings) {
					Outline out;
					const std::vector<Obstacle3D> tmp = out.get(f);
					res.insert(res.end(), tmp.begin(), tmp.end());
				}

				// process each obstacle within the floor
				if (f->obstacles.enabled) {

					if (1 == 1) {
						const std::vector<Obstacle3D> tmp = getLines(f);
						res.insert(res.end(), tmp.begin(), tmp.end());
					}

					if (1 == 1) {
						const std::vector<Obstacle3D> tmp = getWalls(f);
						res.insert(res.end(), tmp.begin(), tmp.end());
					}



					if (exportHandrails) {
						Handrails rails;
						const std::vector<Obstacle3D> tmp = rails.getHandrails(f);
						res.insert(res.end(), tmp.begin(), tmp.end());
					}

					if (exportObjects) {
						Objects objs;
						const std::vector<Obstacle3D> tmp = objs.getObjects(f);
						res.insert(res.end(), tmp.begin(), tmp.end());
					}

					if (exportPillars) {
						Pillars pillars;
						const std::vector<Obstacle3D> tmp = pillars.getPillars(f);
						res.insert(res.end(), tmp.begin(), tmp.end());
					}

					if (exportDoors) {
						Doors doors;
						const std::vector<Obstacle3D> tmp = doors.getDoors(f);
						res.insert(res.end(), tmp.begin(), tmp.end());
					}

//					for (const Floorplan::FloorObstacle* fo : f->obstacles) {
//						std::vector<Obstacle3D> tmp = getWalls(f);
//						res.insert(res.end(), tmp.begin(), tmp.end());
//					}
				}

//				// stairs
				if (f->stairs.enabled && exportStairs) {
					Stairs stairs;
					const std::vector<Obstacle3D> tmp = stairs.getStairs(f);
					res.insert(res.end(), tmp.begin(), tmp.end());
				}

			}

			return res;

		}


		/** just get all walls */
		std::vector<Obstacle3D> getWalls(const Floorplan::Floor* f) {

			WallsViaCuttedQuads walls;

			for (const Floorplan::FloorObstacle* obs : f->obstacles) {
				const Floorplan::FloorObstacleWall* wall = dynamic_cast<const Floorplan::FloorObstacleWall*>(obs);
				if (wall) {walls.add(f, wall);}
			}

			return walls.get();

		}

		/** get all old walls (lines) */
		std::vector<Obstacle3D> getLines(const Floorplan::Floor* f) {

			WallsViaCubes walls;

			for (const Floorplan::FloorObstacle* obs : f->obstacles) {
				const Floorplan::FloorObstacleLine* line = dynamic_cast<const Floorplan::FloorObstacleLine*>(obs);
				if (line) {
					if (line->type == Floorplan::ObstacleType::WALL) {
						walls.add(f, line, nullptr);
					}
				}
			}

			return walls.get();

		}

	};

}

#endif // FLOORPLAN_3D_BUILDER_H