Add a gui and a menu system and some more shit

src/main/java/rip/tilly/bedwars/utils/ItemBuilder.java

@@ -0,0 +1,198 @@
+package rip.tilly.bedwars.utils;
+
+import com.mojang.authlib.GameProfile;
+import com.mojang.authlib.properties.Property;
+import org.apache.commons.codec.binary.Base64;
+import org.bukkit.ChatColor;
+import org.bukkit.Color;
+import org.bukkit.Material;
+import org.bukkit.enchantments.Enchantment;
+import org.bukkit.event.Listener;
+import org.bukkit.inventory.ItemFlag;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.inventory.meta.LeatherArmorMeta;
+import org.bukkit.inventory.meta.SkullMeta;
+import org.bukkit.material.MaterialData;
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public class ItemBuilder implements Listener {
+
+	private final ItemStack is;
+
+	public ItemBuilder(final Material mat) {
+		is = new ItemStack(mat);
+	}
+
+	public ItemBuilder(final ItemStack is) {
+		this.is = is;
+	}
+
+	public ItemBuilder amount(final int amount) {
+		is.setAmount(amount);
+
+		return this;
+	}
+
+	public ItemBuilder name(final String name) {
+		final ItemMeta meta = is.getItemMeta();
+		meta.setDisplayName(ChatColor.translateAlternateColorCodes('&', name));
+		is.setItemMeta(meta);
+
+		return this;
+	}
+
+	public ItemBuilder lore(final String name) {
+		final ItemMeta meta = is.getItemMeta();
+		List<String> lore = meta.getLore();
+		if (lore == null) {
+			lore = new ArrayList<>();
+		}
+
+		lore.add(name);
+		meta.setLore(lore);
+		is.setItemMeta(meta);
+
+		return this;
+	}
+
+	public ItemBuilder lore(final List<String> lore) {
+		List<String> toSet = new ArrayList<>();
+		ItemMeta meta = is.getItemMeta();
+
+		for (String string : lore) {
+			toSet.add(ChatColor.translateAlternateColorCodes('&', string));
+		}
+
+		meta.setLore(toSet);
+		is.setItemMeta(meta);
+		return this;
+	}
+
+	public ItemBuilder durability(final int durability) {
+		is.setDurability((short) durability);
+
+		return this;
+	}
+
+	public ItemBuilder head(String url) {
+		SkullMeta headMeta = (SkullMeta) is.getItemMeta();
+		GameProfile profile = new GameProfile(UUID.randomUUID(), null);
+		byte[] encodedData = Base64.encodeBase64(String.format("{textures:{SKIN:{url:\"%s\"}}}", url).getBytes());
+		profile.getProperties().put("textures", new Property("textures", new String(encodedData)));
+		Field profileField;
+
+		try {
+			profileField = headMeta.getClass().getDeclaredField("profile");
+			profileField.setAccessible(true);
+			profileField.set(headMeta, profile);
+		} catch (NoSuchFieldException | IllegalArgumentException | IllegalAccessException e1) {
+			e1.printStackTrace();
+		}
+
+		is.setItemMeta(headMeta);
+		return this;
+	}
+
+	public ItemBuilder owner(String owner) {
+		if (this.is.getType() == Material.SKULL_ITEM) {
+			SkullMeta meta = (SkullMeta) this.is.getItemMeta();
+			meta.setOwner(owner);
+			this.is.setItemMeta(meta);
+			return this;
+		}
+
+		throw new IllegalArgumentException("setOwner() only applicable for Skull Item");
+	}
+
+	@SuppressWarnings("deprecation")
+	public ItemBuilder data(final int data) {
+		is.setData(new MaterialData(is.getType(), (byte) data));
+
+		return this;
+	}
+
+	public ItemBuilder enchantment(final Enchantment enchantment, final int level) {
+		is.addUnsafeEnchantment(enchantment, level);
+		return this;
+	}
+
+	public ItemBuilder enchantment(final Enchantment enchantment) {
+		is.addUnsafeEnchantment(enchantment, 1);
+		return this;
+	}
+
+	public ItemBuilder hideFlags() {
+		final ItemMeta meta = is.getItemMeta();
+		meta.addItemFlags(ItemFlag.HIDE_POTION_EFFECTS, ItemFlag.HIDE_UNBREAKABLE, ItemFlag.HIDE_ATTRIBUTES);
+		is.setItemMeta(meta);
+
+		return this;
+	}
+
+	public ItemBuilder hideEnchants() {
+	    final ItemMeta meta = is.getItemMeta();
+	    meta.addItemFlags(ItemFlag.HIDE_ENCHANTS);
+	    is.setItemMeta(meta);
+
+	    return this;
+    }
+
+    public ItemBuilder hideUnbreakable() {
+        final ItemMeta meta = is.getItemMeta();
+        meta.addItemFlags(ItemFlag.HIDE_UNBREAKABLE);
+        is.setItemMeta(meta);
+
+        return this;
+    }
+
+    public ItemBuilder addUnbreakable() {
+        final ItemMeta meta = is.getItemMeta();
+        meta.spigot().setUnbreakable(true);
+        is.setItemMeta(meta);
+
+        return this;
+    }
+
+	public ItemBuilder type(final Material material) {
+		is.setType(material);
+		return this;
+	}
+
+	public ItemBuilder clearLore() {
+		final ItemMeta meta = is.getItemMeta();
+		meta.setLore(new ArrayList<>());
+		is.setItemMeta(meta);
+
+		return this;
+	}
+
+	public ItemBuilder clearEnchantments() {
+		for (final Enchantment e : is.getEnchantments().keySet()) {
+			is.removeEnchantment(e);
+		}
+
+		return this;
+	}
+
+	public ItemBuilder color(Color color) {
+		if (is.getType() == Material.LEATHER_BOOTS || is.getType() == Material.LEATHER_CHESTPLATE
+				|| is.getType() == Material.LEATHER_HELMET || is.getType() == Material.LEATHER_LEGGINGS) {
+			LeatherArmorMeta meta = (LeatherArmorMeta) is.getItemMeta();
+			meta.setColor(color);
+			is.setItemMeta(meta);
+
+			return this;
+		} else {
+			throw new IllegalArgumentException("color() only applicable for leather armor!");
+		}
+	}
+
+	public ItemStack build() {
+		return is;
+	}
+}