/**
 * Copyright 2014 
 * SMEdit https://github.com/StarMade/SMEdit
 * SMTools https://github.com/StarMade/SMTools
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 **/

package jo.sm.plugins.ship.stripes;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Random;

import jo.sm.data.BlockTypes;
import jo.sm.data.CubeIterator;
import jo.sm.data.SparseMatrix;
import jo.sm.data.StarMade;
import jo.sm.mods.IBlocksPlugin;
import jo.sm.mods.IPluginCallback;
import jo.sm.ship.data.Block;
import jo.vecmath.Point3i;
import jo.vecmath.logic.MathUtils;

/**
 * @Auther Jo Jaquinta for SMEdit Classic - version 1.0
 * @Auther Robert Barefoot for SMEdit - version 1.1
 **/
public class OmbrePlugin implements IBlocksPlugin {

    public static final String NAME = "Ombre";
    public static final String DESC = "Paint a pattern fading from one color to another.";
    public static final String AUTH = "Jo Jaquinta";
    public static final int[][] CLASSIFICATIONS
            = {
                {TYPE_SHIP, SUBTYPE_PAINT},
                {TYPE_STATION, SUBTYPE_PAINT},
                {TYPE_SHOP, SUBTYPE_PAINT},};
    public Random mRND = new Random();

    @Override
    public String getName() {
        return NAME;
    }

    @Override
    public String getDescription() {
        return DESC;
    }

    @Override
    public String getAuthor() {
        return AUTH;
    }

    @Override
    public Object newParameterBean() {
        return new OmbreParameters();
    }

    @Override
    public void initParameterBean(SparseMatrix<Block> original, Object params,
            StarMade sm, IPluginCallback cb) {
    }

    @Override
    public int[][] getClassifications() {
        return CLASSIFICATIONS;
    }

    @Override
    public SparseMatrix<Block> modify(SparseMatrix<Block> original,
            Object p, StarMade sm, IPluginCallback cb) {
        OmbreParameters params;
        params = (OmbreParameters) p;
        Point3i lower;
        Point3i upper;
        if ((sm.getSelectedLower() != null) && (sm.getSelectedUpper() != null)) {
            lower = sm.getSelectedLower();
            upper = sm.getSelectedUpper();
        } else {
            lower = new Point3i();
            upper = new Point3i();
            original.getBounds(lower, upper);
        }
        cb.startTask((upper.x - lower.x + 1) * (upper.y - lower.y + 1) * (upper.z - lower.z + 1));
        SparseMatrix<Block> modified;
        modified = new SparseMatrix<>(original);
        for (Iterator<Point3i> i = new CubeIterator(lower, upper); i.hasNext();) {
            cb.workTask(1);
            Point3i xyz = i.next();
            Block b = modified.get(xyz);
            if (b == null) {
                continue;
            }
            if (BlockTypes.isAnyHull(b.getBlockID())) {
                b = modify(xyz, b, params, lower, upper);
                modified.set(xyz, b);
            }
        }
        cb.endTask();
        return modified;
    }

    private Block modify(Point3i xyz, Block b, OmbreParameters params, Point3i lower, Point3i upper) {
        List<Double> medians;
        medians = new ArrayList<>();
        if (params.isXAxis()) {
            double a;
            a = MathUtils.interpolate(xyz.x, lower.x, upper.x, 0, 1);
            medians.add(a);
        }
        if (params.isYAxis()) {
            double a;
            a = MathUtils.interpolate(xyz.y, lower.y, upper.y, 0, 1);
            medians.add(a);
        }
        if (params.isZAxis()) {
            double a;
            a = MathUtils.interpolate(xyz.z, lower.z, upper.z, 0, 1);
            medians.add(a);
        }
        double median = 0;
        for (Double m : medians) {
            median += m / medians.size();
        }

        short newColor;
        if (mRND.nextDouble() < median) {
            newColor = params.getColor2();
        } else {
            newColor = params.getColor1();
        }
        newColor = BlockTypes.getColoredBlock(b.getBlockID(), newColor);
        b = new Block(b);
        b.setBlockID(newColor);
        return b;
    }
}