DreamItemStacks.java

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/*
 * MIT License
 *
 * Copyright (c) 2025 Dreamfire Studio
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.dreamfirestudios.dreamcore.DreamItems;
 
import net.kyori.adventure.text.Component;
import org.bukkit.Material;
import org.bukkit.NamespacedKey;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.persistence.PersistentDataContainer;
import org.bukkit.persistence.PersistentDataType;
import org.bukkit.plugin.Plugin;
 
import java.util.*;
import java.util.function.Function;
 
public final class DreamItemStacks {
 
    private DreamItemStacks() {}
 
    public static NamespacedKey keyId(Plugin plugin) {
        return new NamespacedKey(plugin, "dream_item_id");
    }
 
    /* --------------------------------------------------------------------- */
    /* Build                                                                  */
    /* --------------------------------------------------------------------- */
 
    public static ItemStack build(Plugin plugin, IDreamItemStack def) {
        Objects.requireNonNull(plugin, "plugin");
        Objects.requireNonNull(def, "definition");
 
        ItemStack stack = new ItemStack(def.type(), Math.max(1, def.amount()));
        ItemMeta meta = stack.getItemMeta();
 
        // Name
        Component name = def.displayName();
        if (name != null) meta.displayName(name);
 
        // Lore
        List<Component> lore = def.lore();
        if (lore != null && !lore.isEmpty()) meta.lore(lore);
 
        // Custom model data
        def.customModelData().ifPresent(meta::setCustomModelData);
 
        // Unbreakable, flags
        meta.setUnbreakable(def.unbreakable());
        Set<?> flags = def.flags();
        if (flags != null && !flags.isEmpty()) {
            meta.addItemFlags(def.flags().toArray(new org.bukkit.inventory.ItemFlag[0]));
        }
 
        // Attributes
        Map<?, ?> attrs = def.attributeModifiers();
        if (attrs != null && !attrs.isEmpty()) {
            def.attributeModifiers().forEach((attr, mods) -> {
                if (attr == null || mods == null) return;
                for (var mod : mods) if (mod != null) meta.addAttributeModifier(attr, mod);
            });
        }
 
        // PDC
        PersistentDataContainer pdc = meta.getPersistentDataContainer();
        def.id().ifPresent(id -> pdc.set(keyId(plugin), PersistentDataType.STRING, id));
        def.writePdc(plugin, pdc);
 
        stack.setItemMeta(meta);
 
        // Enchantments last
        Map<Enchantment, Integer> ench = def.enchantments();
        if (ench != null && !ench.isEmpty()) {
            ench.forEach((e, lvl) -> {
                if (e != null && lvl != null && lvl > 0) stack.addUnsafeEnchantment(e, lvl);
            });
        }
 
        return stack;
    }
 
    /* --------------------------------------------------------------------- */
    /* Resolve                                                                */
    /* --------------------------------------------------------------------- */
 
    public static Optional<String> readId(Plugin plugin, ItemStack stack) {
        if (stack == null || stack.getType() == Material.AIR) return Optional.empty();
        ItemMeta meta = stack.getItemMeta();
        if (meta == null) return Optional.empty();
        String id = meta.getPersistentDataContainer().get(keyId(plugin), PersistentDataType.STRING);
        return Optional.ofNullable(id);
    }
 
    public static Optional<IDreamItemStack> resolveById(
            Plugin plugin,
            ItemStack stack,
            Function<String, IDreamItemStack> registryLookup
    ) {
        Objects.requireNonNull(registryLookup, "registryLookup");
        return readId(plugin, stack).map(registryLookup);
    }
 
    public static Optional<IDreamItemStack> resolveById(
            Plugin plugin,
            ItemStack stack,
            Collection<IDreamItemStack> registry
    ) {
        Optional<String> id = readId(plugin, stack);
        if (id.isEmpty()) return Optional.empty();
        String key = id.get();
        for (IDreamItemStack def : registry) {
            if (def != null && def.id().isPresent() && def.id().get().equals(key)) return Optional.of(def);
        }
        return Optional.empty();
    }
 
    /* --------------------------------------------------------------------- */
    /* Equality / counting                                                    */
    /* --------------------------------------------------------------------- */
 
    public static boolean isSame(Plugin plugin, ItemStack a, ItemStack b) {
        if (a == b) return true;
        if (a == null || b == null) return false;
 
        Optional<String> idA = readId(plugin, a);
        Optional<String> idB = readId(plugin, b);
        if (idA.isPresent() && idB.isPresent()) {
            return idA.get().equals(idB.get());
        }
        return a.isSimilar(b);
    }
 
    public static int count(Plugin plugin, Inventory inv, ItemStack probe) {
        Objects.requireNonNull(inv, "inventory");
        Objects.requireNonNull(probe, "probe");
        int total = 0;
        for (ItemStack s : inv.getContents()) {
            if (s == null) continue;
            if (isSame(plugin, s, probe)) total += s.getAmount();
        }
        return total;
    }
 
    public static int count(Inventory inv, Material material) {
        Objects.requireNonNull(inv, "inventory");
        Objects.requireNonNull(material, "material");
        int total = 0;
        for (ItemStack s : inv.getContents()) {
            if (s == null) continue;
            if (s.getType() == material) total += s.getAmount();
        }
        return total;
    }
}