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package com.javafx.experiments.utils3d.geom.transform;

import com.javafx.experiments.utils3d.geom.BaseBounds;
import com.javafx.experiments.utils3d.geom.Vec3d;

public class TransformHelper {

    private TransformHelper() {
    }


    public static BaseBounds general3dBoundsTransform(CanTransformVec3d tx, BaseBounds src, BaseBounds dst, Vec3d tempV3d) {

        if (tempV3d == null) {
            tempV3d = new Vec3d();
        }

        double srcMinX = src.getMinX();
        double srcMinY = src.getMinY();
        double srcMinZ = src.getMinZ();
        double srcMaxX = src.getMaxX();
        double srcMaxY = src.getMaxY();
        double srcMaxZ = src.getMaxZ();

        // TODO: Optimize... (RT-26884)
        tempV3d.set(srcMaxX, srcMaxY, srcMaxZ);
        tempV3d = tx.transform(tempV3d, tempV3d);
        double minX = tempV3d.x;
        double minY = tempV3d.y;
        double minZ = tempV3d.z;
        double maxX = tempV3d.x;
        double maxY = tempV3d.y;
        double maxZ = tempV3d.z;

        tempV3d.set(srcMinX, srcMaxY, srcMaxZ);
        tempV3d = tx.transform(tempV3d, tempV3d);
        if (tempV3d.x > maxX) maxX = tempV3d.x;
        if (tempV3d.y > maxY) maxY = tempV3d.y;
        if (tempV3d.z > maxZ) maxZ = tempV3d.z;
        if (tempV3d.x < minX) minX = tempV3d.x;
        if (tempV3d.y < minY) minY = tempV3d.y;
        if (tempV3d.z < minZ) minZ = tempV3d.z;

        tempV3d.set(srcMinX, srcMinY, srcMaxZ);
        tempV3d = tx.transform(tempV3d, tempV3d);
        if (tempV3d.x > maxX) maxX = tempV3d.x;
        if (tempV3d.y > maxY) maxY = tempV3d.y;
        if (tempV3d.z > maxZ) maxZ = tempV3d.z;
        if (tempV3d.x < minX) minX = tempV3d.x;
        if (tempV3d.y < minY) minY = tempV3d.y;
        if (tempV3d.z < minZ) minZ = tempV3d.z;

        tempV3d.set(srcMaxX, srcMinY, srcMaxZ);
        tempV3d = tx.transform(tempV3d, tempV3d);
        if (tempV3d.x > maxX) maxX = tempV3d.x;
        if (tempV3d.y > maxY) maxY = tempV3d.y;
        if (tempV3d.z > maxZ) maxZ = tempV3d.z;
        if (tempV3d.x < minX) minX = tempV3d.x;
        if (tempV3d.y < minY) minY = tempV3d.y;
        if (tempV3d.z < minZ) minZ = tempV3d.z;

        tempV3d.set(srcMinX, srcMaxY, srcMinZ);
        tempV3d = tx.transform(tempV3d, tempV3d);
        if (tempV3d.x > maxX) maxX = tempV3d.x;
        if (tempV3d.y > maxY) maxY = tempV3d.y;
        if (tempV3d.z > maxZ) maxZ = tempV3d.z;
        if (tempV3d.x < minX) minX = tempV3d.x;
        if (tempV3d.y < minY) minY = tempV3d.y;
        if (tempV3d.z < minZ) minZ = tempV3d.z;

        tempV3d.set(srcMaxX, srcMaxY, srcMinZ);
        tempV3d = tx.transform(tempV3d, tempV3d);
        if (tempV3d.x > maxX) maxX = tempV3d.x;
        if (tempV3d.y > maxY) maxY = tempV3d.y;
        if (tempV3d.z > maxZ) maxZ = tempV3d.z;
        if (tempV3d.x < minX) minX = tempV3d.x;
        if (tempV3d.y < minY) minY = tempV3d.y;
        if (tempV3d.z < minZ) minZ = tempV3d.z;

        tempV3d.set(srcMinX, srcMinY, srcMinZ);
        tempV3d = tx.transform(tempV3d, tempV3d);
        if (tempV3d.x > maxX) maxX = tempV3d.x;
        if (tempV3d.y > maxY) maxY = tempV3d.y;
        if (tempV3d.z > maxZ) maxZ = tempV3d.z;
        if (tempV3d.x < minX) minX = tempV3d.x;
        if (tempV3d.y < minY) minY = tempV3d.y;
        if (tempV3d.z < minZ) minZ = tempV3d.z;

        tempV3d.set(srcMaxX, srcMinY, srcMinZ);
        tempV3d = tx.transform(tempV3d, tempV3d);
        if (tempV3d.x > maxX) maxX = tempV3d.x;
        if (tempV3d.y > maxY) maxY = tempV3d.y;
        if (tempV3d.z > maxZ) maxZ = tempV3d.z;
        if (tempV3d.x < minX) minX = tempV3d.x;
        if (tempV3d.y < minY) minY = tempV3d.y;
        if (tempV3d.z < minZ) minZ = tempV3d.z;

        return dst.deriveWithNewBounds((float) minX, (float) minY, (float) minZ,
                (float) maxX, (float) maxY, (float) maxZ);
    }

}