AFKGuard/src/com/entryrise/afkguard/antiafk/captcha/CaptchaGUI.java


package com.entryrise.afkguard.antiafk.captcha;


import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.SplittableRandom;

import java.util.UUID;


import org.bukkit.Bukkit;

import org.bukkit.ChatColor;

import org.bukkit.Material;

import org.bukkit.entity.HumanEntity;

import org.bukkit.entity.Player;

import org.bukkit.event.EventHandler;

import org.bukkit.event.Listener;

import org.bukkit.event.inventory.InventoryClickEvent;

import org.bukkit.event.inventory.InventoryCloseEvent;

import org.bukkit.inventory.Inventory;

import org.bukkit.inventory.ItemStack;


import com.entryrise.afkguard.Main;

import com.entryrise.afkguard.mineutils.ItemBuilder;


public class CaptchaGUI implements Listener {


 public static List<Integer> filler = new ArrayList<Integer>();

 private static SplittableRandom sr = new SplittableRandom();


 // Fillers where selector items can stay;

 static {

 for (int i = 19; i < 26; i++) {

 filler.add(i);

 }

 for (int i = 28; i < 35; i++) {

 filler.add(i);

 }

 for (int i = 37; i < 44; i++) {

 filler.add(i);

 }


 filler.add(10);

 filler.add(11);

 filler.add(15);

 filler.add(16);

 }


 public static class CaptchaData {


 public CaptchaCategory category;

 public Material example;

 public Inventory inv;


 public int counter;


 public CaptchaData() {

 this.category = CaptchaCategory.getCategory(null);

 this.example = category.getRandom(null);

 }


 }


 public static Map<UUID, CaptchaData> invs = new HashMap<UUID, CaptchaData>();


 public static Inventory getInventory(Player p, int counter) {

 return getInventory(p.getUniqueId(), counter);

 }


 public static boolean existsAlready(Player p) {

 return existsAlready(p.getUniqueId());

 }


 public static boolean existsAlready(UUID u) {


 return invs.containsKey(u);

 }


 public static Inventory getInventory(UUID u, int counter) {

 if (existsAlready(u)) {

 return invs.get(u).inv;

 } else if (counter != -1) {

 return createInventory(u, counter);

 }


 return null;

 }


 private static Inventory createInventory(UUID u, int counter) {

 CaptchaData cd = new CaptchaData();


 Inventory inv = Bukkit.createInventory(null, 54, getTitle(cd.category.getName()));


 setBorders(inv);

 setRandomExample(inv, cd);

 setRandomAnswers(inv, cd);


 cd.inv = inv;

 cd.counter = counter;


 invs.put(u, cd);


 return inv;

 }


 public static String getTitle(String categoryname) {

 return ChatColor.translateAlternateColorCodes('&', Main.config.getString("settings.captcha.gui.title"))

 .replace("%category%", categoryname);

 }


 @EventHandler

 public void onInventoryClick(InventoryClickEvent e) {


 HumanEntity hm = e.getWhoClicked();


 if (!(hm instanceof Player)) {

 return;

 }


 Player p = (Player) hm;


 Inventory invent = e.getInventory();


 ItemStack itm = e.getCurrentItem();


 if (itm == null) {

 return;

 }


 if (!invs.containsKey(p.getUniqueId())) {

 return;

 }


 if (!invent.equals(invs.get(p.getUniqueId()).inv)) {

 return;

 }


 // Done checks to make sure it's a verify gui. We can now do the work required.

 int slot = e.getSlot();


 // Make sure you're not clicking anywhere except verify items.

 e.setCancelled(true);


 if (!filler.contains(slot)) {

 return;

 }


 Main.captchaResult(p, itm.getType());


 }


 @EventHandler

 public void onInventoryClose(InventoryCloseEvent e) {

 HumanEntity hm = e.getPlayer();


 if (!(hm instanceof Player)) {

 return;

 }


 Player p = (Player) hm;


 Inventory invent = e.getInventory();


 if (!invs.containsKey(p.getUniqueId())) {

 return;

 }


 if (!invent.equals(invs.get(p.getUniqueId()).inv)) {

 return;

 }


 Bukkit.getScheduler().runTaskLater(Main.p, () -> p.openInventory(CaptchaGUI.getInventory(p, -1)), 5);

 }


 public static void setBorders(Inventory inv) {

 ItemStack pane = new ItemBuilder(Main.config, "settings.captcha.gui.glass-pane").build();

 for (int i = 4; i <= 49; i += 9) {

 inv.setItem(i - 4, pane);

 inv.setItem(i + 4, pane);

 }


 for (int i = 1; i <= 7; i++) {

 inv.setItem(i, pane);

 inv.setItem(i + 45, pane);

 }


 inv.setItem(12, pane);

 inv.setItem(13, pane);

 inv.setItem(14, pane);

 }


 public static void setRandomExample(Inventory inv, CaptchaData cd) {

 ItemStack itm = new ItemBuilder(Main.config, "settings.captcha.gui.example").setType(cd.example.name()).build();

 inv.setItem(4, itm);

 }


 public static void setRandomAnswers(Inventory inv, CaptchaData cd) {

 List<Material> mats = cd.category.getShuffledFiller();


 for (int i = 0; i < filler.size(); i++) {

 Material mat = mats.get(i);

 int slot = filler.get(i);


 ItemStack itm = prepareItemStack(mat);

 inv.setItem(slot, itm);

 }


 inv.setItem(filler.get(sr.nextInt(filler.size())), prepareItemStack(cd.category.getRandom(cd.example)));

 }


 private static ItemStack prepareItemStack(Material mat) {

 ItemStack itm = new ItemBuilder(Main.config, "settings.captcha.gui.item").setType(mat.name()).build();

 return itm;

 }


}