package com.thevoxelbox.voxelsniper.brush;

import com.thevoxelbox.voxelsniper.Message;
import com.thevoxelbox.voxelsniper.SnipeData;
import com.thevoxelbox.voxelsniper.Undo;
import org.bukkit.ChatColor;
import org.bukkit.block.Block;

/**
 * THIS BRUSH SHOULD NOT USE PERFORMERS.
 * http://www.voxelwiki.com/minecraft/Voxelsniper#Shell_Brushes
 *
 * @author Voxel
 */
public class ShellBallBrush extends Brush
{
    /**
     *
     */
    public ShellBallBrush()
    {
        this.setName("Shell Ball");
    }

    // parameters isn't an abstract method, gilt. You can just leave it out if there are none.
    private void bShell(final SnipeData v, Block targetBlock)
    {
        final int brushSize = v.getBrushSize();
        final int brushSizeDoubled = 2 * brushSize;
        final int[][][] oldMaterials = new int[2 * (brushSize + 1) + 1][2 * (brushSize + 1) + 1][2 * (brushSize + 1) + 1]; // Array that holds the original materials plus a buffer
        final int[][][] newMaterials = new int[brushSizeDoubled + 1][brushSizeDoubled + 1][brushSizeDoubled + 1]; // Array that holds the hollowed materials

        int blockPositionX = targetBlock.getX();
        int blockPositionY = targetBlock.getY();
        int blockPositionZ = targetBlock.getZ();
        // Log current materials into oldmats
        for (int x = 0; x <= 2 * (brushSize + 1); x++)
        {
            for (int y = 0; y <= 2 * (brushSize + 1); y++)
            {
                for (int z = 0; z <= 2 * (brushSize + 1); z++)
                {
                    oldMaterials[x][y][z] = this.getBlockIdAt(blockPositionX - brushSize - 1 + x, blockPositionY - brushSize - 1 + y, blockPositionZ - brushSize - 1 + z);
                }
            }
        }

        // Log current materials into newmats
        for (int x = 0; x <= brushSizeDoubled; x++)
        {
            for (int y = 0; y <= brushSizeDoubled; y++)
            {
                System.arraycopy(oldMaterials[x + 1][y + 1], 1, newMaterials[x][y], 0,
                    brushSizeDoubled + 1);
            }
        }

        int temp;

        // Hollow Brush Area
        for (int x = 0; x <= brushSizeDoubled; x++)
        {
            for (int y = 0; y <= brushSizeDoubled; y++)
            {
                for (int z = 0; z <= brushSizeDoubled; z++)
                {
                    temp = 0;

                    if (oldMaterials[x + 1 + 1][y + 1][z + 1] == v.getReplaceId())
                    {
                        temp++;
                    }
                    if (oldMaterials[x + 1 - 1][y + 1][z + 1] == v.getReplaceId())
                    {
                        temp++;
                    }
                    if (oldMaterials[x + 1][y + 1 + 1][z + 1] == v.getReplaceId())
                    {
                        temp++;
                    }
                    if (oldMaterials[x + 1][y + 1 - 1][z + 1] == v.getReplaceId())
                    {
                        temp++;
                    }
                    if (oldMaterials[x + 1][y + 1][z + 1 + 1] == v.getReplaceId())
                    {
                        temp++;
                    }
                    if (oldMaterials[x + 1][y + 1][z + 1 - 1] == v.getReplaceId())
                    {
                        temp++;
                    }

                    if (temp == 0)
                    {
                        newMaterials[x][y][z] = v.getVoxelId();
                    }
                }
            }
        }

        // Make the changes
        final Undo undo = new Undo();
        final double rSquared = Math.pow(brushSize + 0.5, 2);

        for (int x = brushSizeDoubled; x >= 0; x--)
        {
            final double xSquared = Math.pow(x - brushSize, 2);

            for (int y = 0; y <= 2 * brushSize; y++)
            {
                final double ySquared = Math.pow(y - brushSize, 2);

                for (int z = 2 * brushSize; z >= 0; z--)
                {
                    if (xSquared + ySquared + Math.pow(z - brushSize, 2) <= rSquared)
                    {
                        if (this.getBlockIdAt(blockPositionX - brushSize + x, blockPositionY - brushSize + y, blockPositionZ - brushSize + z) != newMaterials[x][y][z])
                        {
                            undo.put(this.clampY(blockPositionX - brushSize + x, blockPositionY - brushSize + y, blockPositionZ - brushSize + z));
                        }
                        this.setBlockIdAt(blockPositionZ - brushSize + z, blockPositionX - brushSize + x, blockPositionY - brushSize + y, newMaterials[x][y][z]);
                    }
                }
            }
        }
        v.owner().storeUndo(undo);

        // This is needed because most uses of this brush will not be sible to the sniper.
        v.owner().getPlayer().sendMessage(ChatColor.AQUA + "Shell complete.");
    }

    @Override
    protected final void arrow(final SnipeData v)
    {
        this.bShell(v, this.getTargetBlock());
    }

    @Override
    protected final void powder(final SnipeData v)
    {
        this.bShell(v, this.getLastBlock());
    }

    @Override
    public final void info(final Message vm)
    {
        vm.brushName(this.getName());
        vm.size();
        vm.voxel();
        vm.replace();
    }

    @Override
    public String getPermissionNode()
    {
        return "voxelsniper.brush.shellball";
    }
}