idek

public static class WSWCRData {
    private final HashMap<World, List<Chunk>> worldChunks;
    private WSWCRData(HashMap<World, List<Chunk>> worldChunks) {
        this.worldChunks = worldChunks;
    }
    public static WSWCRData create(CommandSender sender, CommandLogger logger, CommandArgs args, int argOffset) {
        String arg = args.getString(argOffset);
        if (arg == null) {
            if (sender instanceof Player) {
                World world = ((Player) sender).getWorld();
                HashMap<World, List<Chunk>> chunks = new HashMap<World, List<Chunk>>(1);
                chunks.put(world, Arrays.asList(world.getLoadedChunks()));
                return new WSWCRData(chunks);
            }
            else {
                HashMap<World, List<Chunk>> chunks = new HashMap<World, List<Chunk>>(8);
                for (World world : Bukkit.getWorlds()) {
                    chunks.put(world, Arrays.asList(world.getLoadedChunks()));
                }
                return new WSWCRData(chunks);
            }
        }
        else if (arg.equalsIgnoreCase("ws")) {
            HashMap<World, List<Chunk>> chunks = new HashMap<World, List<Chunk>>(8);
            for (World world : Bukkit.getWorlds()) {
                chunks.put(world, Arrays.asList(world.getLoadedChunks()));
            }
            return new WSWCRData(chunks);
        }
        else if (arg.equalsIgnoreCase("w")) {
            World world = args.getWorld(argOffset + 1);
            if (world == null) {
                if ((args.getArgsLength() - argOffset) >= 2) {
                    logger.logPrefix("That world doesnt exist or isnt loaded");
                    return null;
                }
                else {
                    if (sender instanceof Player) {
                        world = ((Player) sender).getWorld();
                    }
                    else {
                        logger.logPrefix("Youre not a player and you havent provided a world name!");
                        return null;
                    }
                }
                HashMap<World, List<Chunk>> chunks = new HashMap<World, List<Chunk>>(1);
                chunks.put(world, Arrays.asList(world.getLoadedChunks()));
                return new WSWCRData(chunks);
            }
        }
        else if (arg.equalsIgnoreCase("c")) {
            if ((args.getArgsLength() - argOffset) >= 4) {
                World world = args.getWorld(argOffset + 1);
                if (world == null) {
                    if (sender instanceof Player) {
                        world = ((Player) sender).getWorld();
                    }
                    else {
                        logger.logTranslatePrefix("Youre not a player and you havent provided a world name after the 'c'!");
                        return null;
                    }
                }
                Integer x = args.getInteger(argOffset + 2);
                if (logger.nullCheckPrefix(x, "Error with the chunk X coordinate: its not a number")) {
                    return null;
                }
                Integer z = args.getInteger(argOffset + 2);
                if (logger.nullCheckPrefix(z, "Error with the chunk Z coordinate: its not a number")) {
                    return null;
                }
                HashMap<World, List<Chunk>> chunks = new HashMap<World, List<Chunk>>(1);
                ArrayList<Chunk> chunkList = new ArrayList<Chunk>(1);
                chunkList.add(world.getChunkAt(x, z));
                chunks.put(world, chunkList);
                return new WSWCRData(chunks);
            }
            else if ((args.getArgsLength() - argOffset) >= 3) {
                World world;
                if (sender instanceof Player) {
                    world = ((Player) sender).getWorld();
                }
                else {
                    logger.logTranslatePrefix("Youre not a player and you havent provided a world name after the 'c'!");
                    return null;
                }
                Integer x = args.getInteger(argOffset + 2);
                if (logger.nullCheckPrefix(x, "Error with the chunk X coordinate: its not a number")) {
                    return null;
                }
                Integer z = args.getInteger(argOffset + 2);
                if (logger.nullCheckPrefix(z, "Error with the chunk Z coordinate: its not a number")) {
                    return null;
                }
                HashMap<World, List<Chunk>> chunks = new HashMap<World, List<Chunk>>(1);
                ArrayList<Chunk> chunkList = new ArrayList<Chunk>(1);
                chunkList.add(world.getChunkAt(x, z));
                chunks.put(world, chunkList);
                return new WSWCRData(chunks);
            }
        }
        else if (arg.equalsIgnoreCase("r")) {
            World world;
            Integer radius = null;
            Integer centerX = null;
            Integer centerZ = null;
            if ((args.getArgsLength() - argOffset) >= 3) {
                world = args.getWorld(argOffset + 1);
                if (world == null) {
                    if (sender instanceof Player) {
                        world = ((Player) sender).getWorld();
                    }
                    else {
                        logger.logTranslatePrefix("Youre not a player and you havent provided a world name after the 'r'!");
                        return null;
                    }
                }
                radius = args.getInteger(argOffset + 2);
            }
            else if ((args.getArgsLength() - argOffset) >= 2) {
                if (sender instanceof Player) {
                    world = ((Player) sender).getWorld();
                }
                else {
                    logger.logTranslatePrefix("Youre not a player and you havent provided a world name after the 'r'!");
                    return null;
                }
                radius = args.getInteger(argOffset + 1);
            }
            else if ((args.getArgsLength() - argOffset) >= 5) {
                centerX = args.getInteger(argOffset + 3);
                if (logger.nullCheckPrefix(centerX, "Error with the chunk X coordinate: it isnt a number")) {
                    return null;
                }
                centerZ = args.getInteger(argOffset + 4);
                if (logger.nullCheckPrefix(centerZ, "Error with the chunk Z coordinate: it isnt a number")) {
                    return null;
                }
            }
            else {
                if (sender instanceof Player) {
                    Chunk chunk = ((Player) sender).getLocation().getChunk();
                    centerX = chunk.getX();
                    centerZ = chunk.getZ();
                }
                logger.logPrefix("You havent provided a radius or world after the 'r'!");
                return null;
            }
            if (logger.nullCheckPrefix(radius, "Error with the radius: it isnt a number")) {
                return null;
            }
            if (logger.nullCheckPrefix(centerX, "Error with the chunk X coordinate: it isnt a number")) {
                return null;
            }
            if (logger.nullCheckPrefix(centerZ, "Error with the chunk Z coordinate: it isnt a number")) {
                return null;
            }
            int diameter = (radius * 2) + 1;
            ArrayList<Chunk> chunks = new ArrayList<Chunk>(diameter * diameter);
            for (int x = centerX - radius, endX = centerX + radius; x <= endX; x++) {
                for (int z = centerZ - radius, endZ = centerZ + radius; z <= endZ; z++) {
                    chunks.add(world.getChunkAt(x, z));
                }
            }
        }
    }
}