package org.simantics.plant3d.geometry;

import java.util.Collection;
import java.util.Collections;
import java.util.Map;

import javax.vecmath.Point3d;
import javax.vecmath.Vector3d;

import org.jcae.opencascade.jni.TopoDS_Shape;
import org.simantics.db.Resource;
import org.simantics.g3d.math.MathTools;
import org.simantics.g3d.shape.ArcCylinder;
import org.simantics.g3d.shape.Mesh;
import org.simantics.opencascade.OccTriangulator;

//public class ElbowGeometryProvider extends BuiltinGeometryProvider  {
public class ElbowGeometryProvider extends BuiltinMeshProvider {
	
	public ElbowGeometryProvider(Resource resource) {
		super(resource);
	}

	private double radius = 0.01;
	private double turnRadius = 0.05;
	private double turnAngle = Math.PI * 0.5;
	
//	@Override
	public Collection<TopoDS_Shape> getModel() throws Exception {
		double t = Math.tan((Math.PI - turnAngle) * 0.5);
		double R = 0.0;
		if (t > MathTools.NEAR_ZERO)
			R = turnRadius / t;
		TopoDS_Shape shape = OccTriangulator.makeTorus(new double[]{-R,0.0,-turnRadius}, new double[] { 0.0, 1.0, 0.0 }, turnRadius, radius,0.0,Math.PI*2.0,turnAngle);
//		System.out.println("Create elbow tr:" + turnRadius + " r:" + radius + " angle:"  +turnAngle + " " + R);
		return Collections.singletonList(shape);
	}
	
//	@Override
	public Mesh getMesh() {
		double t = Math.tan((Math.PI - turnAngle) * 0.5);
		double R = 0.0;
		if (t > MathTools.NEAR_ZERO)
			R = turnRadius / t;
		ArcCylinder cyl = new ArcCylinder();
		
		//return cyl.create(new Point3d(-R, 0.0, -turnRadius), new Point3d(0.0,turnRadius,0.0), new Point3d(-R, 0.0, turnRadius), radius, 16, 0.2);
		return cyl.create(new Point3d(-R, 0.0, -turnRadius), new Vector3d(0.0,1.0,0.0), new Vector3d(0.0,0.0, 1.0),turnRadius, radius, turnAngle,16, 0.2);
	}
	
	@Override
	public void setProperties(Map<String, Object> props) {
		if (props.containsKey("turnRadius"))
			turnRadius = (Double)props.get("turnRadius");
		if (props.containsKey("turnAngle"))
			turnAngle = (Double)props.get("turnAngle");
		if (props.containsKey("radius")) {
			radius = (Double)props.get("radius");
		}
		if (radius < MathTools.NEAR_ZERO)
			radius = MathTools.NEAR_ZERO;
	}

}