package net.minecraft.server;

import com.google.common.collect.Lists;
import java.util.Iterator;
import java.util.List;
import java.util.Random;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

public class WorldGenDungeons extends WorldGenerator {

    private static final Logger a = LogManager.getLogger();
    private static final String[] b = new String[] { "Skeleton", "Zombie", "Zombie", "Spider"};
    private static final List<StructurePieceTreasure> c = Lists.newArrayList(new StructurePieceTreasure[] { new StructurePieceTreasure(Items.SADDLE, 0, 1, 1, 10), new StructurePieceTreasure(Items.IRON_INGOT, 0, 1, 4, 10), new StructurePieceTreasure(Items.BREAD, 0, 1, 1, 10), new StructurePieceTreasure(Items.WHEAT, 0, 1, 4, 10), new StructurePieceTreasure(Items.GUNPOWDER, 0, 1, 4, 10), new StructurePieceTreasure(Items.STRING, 0, 1, 4, 10), new StructurePieceTreasure(Items.BUCKET, 0, 1, 1, 10), new StructurePieceTreasure(Items.GOLDEN_APPLE, 0, 1, 1, 1), new StructurePieceTreasure(Items.REDSTONE, 0, 1, 4, 10), new StructurePieceTreasure(Items.RECORD_13, 0, 1, 1, 4), new StructurePieceTreasure(Items.RECORD_CAT, 0, 1, 1, 4), new StructurePieceTreasure(Items.NAME_TAG, 0, 1, 1, 10), new StructurePieceTreasure(Items.GOLDEN_HORSE_ARMOR, 0, 1, 1, 2), new StructurePieceTreasure(Items.IRON_HORSE_ARMOR, 0, 1, 1, 5), new StructurePieceTreasure(Items.DIAMOND_HORSE_ARMOR, 0, 1, 1, 1)});

    public WorldGenDungeons() {}

    public boolean generate(World world, Random random, BlockPosition blockposition) {
        boolean flag = true;
        int i = random.nextInt(2) + 2;
        int j = -i - 1;
        int k = i + 1;
        boolean flag1 = true;
        boolean flag2 = true;
        int l = random.nextInt(2) + 2;
        int i1 = -l - 1;
        int j1 = l + 1;
        int k1 = 0;

        int l1;
        int i2;
        int j2;
        BlockPosition blockposition1;

        for (l1 = j; l1 <= k; ++l1) {
            for (i2 = -1; i2 <= 4; ++i2) {
                for (j2 = i1; j2 <= j1; ++j2) {
                    blockposition1 = blockposition.a(l1, i2, j2);
                    Material material = world.getType(blockposition1).getBlock().getMaterial();
                    boolean flag3 = material.isBuildable();

                    if (i2 == -1 && !flag3) {
                        return false;
                    }

                    if (i2 == 4 && !flag3) {
                        return false;
                    }

                    if ((l1 == j || l1 == k || j2 == i1 || j2 == j1) && i2 == 0 && world.isEmpty(blockposition1) && world.isEmpty(blockposition1.up())) {
                        ++k1;
                    }
                }
            }
        }

        if (k1 >= 1 && k1 <= 5) {
            for (l1 = j; l1 <= k; ++l1) {
                for (i2 = 3; i2 >= -1; --i2) {
                    for (j2 = i1; j2 <= j1; ++j2) {
                        blockposition1 = blockposition.a(l1, i2, j2);
                        if (l1 != j && i2 != -1 && j2 != i1 && l1 != k && i2 != 4 && j2 != j1) {
                            if (world.getType(blockposition1).getBlock() != Blocks.CHEST) {
                                world.setAir(blockposition1);
                            }
                        } else if (blockposition1.getY() >= 0 && !world.getType(blockposition1.down()).getBlock().getMaterial().isBuildable()) {
                            world.setAir(blockposition1);
                        } else if (world.getType(blockposition1).getBlock().getMaterial().isBuildable() && world.getType(blockposition1).getBlock() != Blocks.CHEST) {
                            if (i2 == -1 && random.nextInt(4) != 0) {
                                world.setTypeAndData(blockposition1, Blocks.MOSSY_COBBLESTONE.getBlockData(), 2);
                            } else {
                                world.setTypeAndData(blockposition1, Blocks.COBBLESTONE.getBlockData(), 2);
                            }
                        }
                    }
                }
            }

            l1 = 0;

            while (l1 < 2) {
                i2 = 0;

                while (true) {
                    if (i2 < 3) {
                        label197: {
                            j2 = blockposition.getX() + random.nextInt(i * 2 + 1) - i;
                            int k2 = blockposition.getY();
                            int l2 = blockposition.getZ() + random.nextInt(l * 2 + 1) - l;
                            BlockPosition blockposition2 = new BlockPosition(j2, k2, l2);

                            if (world.isEmpty(blockposition2)) {
                                int i3 = 0;
                                Iterator iterator = EnumDirection.EnumDirectionLimit.HORIZONTAL.iterator();

                                while (iterator.hasNext()) {
                                    EnumDirection enumdirection = (EnumDirection) iterator.next();

                                    if (world.getType(blockposition2.shift(enumdirection)).getBlock().getMaterial().isBuildable()) {
                                        ++i3;
                                    }
                                }

                                if (i3 == 1) {
                                    world.setTypeAndData(blockposition2, Blocks.CHEST.f(world, blockposition2, Blocks.CHEST.getBlockData()), 2);
                                    List list = StructurePieceTreasure.a(WorldGenDungeons.c, new StructurePieceTreasure[] { Items.ENCHANTED_BOOK.b(random)});
                                    TileEntity tileentity = world.getTileEntity(blockposition2);

                                    if (tileentity instanceof TileEntityChest) {
                                        StructurePieceTreasure.a(random, list, (IInventory) ((TileEntityChest) tileentity), 8);
                                    }
                                    break label197;
                                }
                            }

                            ++i2;
                            continue;
                        }
                    }

                    ++l1;
                    break;
                }
            }

            world.setTypeAndData(blockposition, Blocks.MOB_SPAWNER.getBlockData(), 2);
            TileEntity tileentity1 = world.getTileEntity(blockposition);

            if (tileentity1 instanceof TileEntityMobSpawner) {
                ((TileEntityMobSpawner) tileentity1).getSpawner().setMobName(this.a(random));
            } else {
                WorldGenDungeons.a.error("Failed to fetch mob spawner entity at (" + blockposition.getX() + ", " + blockposition.getY() + ", " + blockposition.getZ() + ")");
            }

            return true;
        } else {
            return false;
        }
    }

    private String a(Random random) {
        return WorldGenDungeons.b[random.nextInt(WorldGenDungeons.b.length)];
    }
}