/********************************************************************************
 *                                                                              *
 * This file is part of IfcOpenShell.                                           *
 *                                                                              *
 * IfcOpenShell is free software: you can redistribute it and/or modify         *
 * it under the terms of the Lesser GNU General Public License as published by  *
 * the Free Software Foundation, either version 3.0 of the License, or          *
 * (at your option) any later version.                                          *
 *                                                                              *
 * IfcOpenShell is distributed in the hope that it will be useful,              *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
 * Lesser GNU General Public License for more details.                          *
 *                                                                              *
 * You should have received a copy of the Lesser GNU General Public License     *
 * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
 *                                                                              *
 ********************************************************************************/

#include <gp_Trsf2d.hxx>
#include <Geom_Ellipse.hxx>
#include <BRepBuilderAPI_MakeEdge.hxx>
#include <BRepBuilderAPI_MakeWire.hxx>
#include <TopoDS_Wire.hxx>
#include <TopoDS_Face.hxx>
#include "../ifcgeom/IfcGeom.h"
#include "../ifcgeom_schema_agnostic/wire_utils.h"

#define Kernel MAKE_TYPE_NAME(Kernel)

bool IfcGeom::Kernel::convert(const IfcSchema::IfcEllipseProfileDef* l, TopoDS_Shape& face) {
	double rx = l->SemiAxis1() * getValue(GV_LENGTH_UNIT);
	double ry = l->SemiAxis2() * getValue(GV_LENGTH_UNIT);

	if ( rx < ALMOST_ZERO || ry < ALMOST_ZERO ) {
		Logger::Message(Logger::LOG_NOTICE,"Skipping zero sized profile:",l);
		return false;
	}

	const bool rotated = ry > rx;

	gp_Trsf2d trsf2d;
	bool has_position = true;
#ifdef SCHEMA_IfcParameterizedProfileDef_Position_IS_OPTIONAL
	has_position = l->Position() != nullptr;
#endif
	if (has_position) {
		IfcGeom::Kernel::convert(l->Position(), trsf2d);
	}

	gp_Ax2 ax = gp_Ax2();
	if (rotated) {
		ax.Rotate(ax.Axis(), M_PI / 2.);
		std::swap(rx, ry);
	}
	ax.Transform(trsf2d);

	BRepBuilderAPI_MakeWire w;
	Handle(Geom_Ellipse) ellipse = new Geom_Ellipse(ax, rx, ry);
	TopoDS_Edge edge = BRepBuilderAPI_MakeEdge(ellipse);
	w.Add(edge);

	TopoDS_Face f;
	bool success = util::convert_wire_to_face(w, f, {false, false, 0., 0.});
	if (success) face = f;
	return success;
}
