ToolStats/src/main/java/lol/hyper/toolstats/events/InventoryOpen.java

/*
 * This file is part of ToolStats.
 *
 * ToolStats is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * ToolStats is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with ToolStats.  If not, see <https://www.gnu.org/licenses/>.
 */

package lol.hyper.toolstats.events;

import lol.hyper.toolstats.ToolStats;
import lol.hyper.toolstats.tools.UUIDDataType;
import org.bukkit.Location;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.inventory.InventoryOpenEvent;
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.scheduler.BukkitRunnable;

import java.util.UUID;

public class InventoryOpen implements Listener {

    private final ToolStats toolStats;

    public InventoryOpen(ToolStats toolStats) {
        this.toolStats = toolStats;
    }

    @EventHandler
    public void onOpen(InventoryOpenEvent event) {
        if (event.isCancelled()) {
            return;
        }

        Inventory inventory = event.getInventory();
        Location location = event.getInventory().getLocation();
        for (ItemStack itemStack : inventory) {
            if (itemStack == null) {
                continue;
            }
            // ignore items that are not the right type
            if (!toolStats.itemChecker.isValidItem(itemStack.getType())) {
                continue;
            }
            ItemMeta itemMeta = itemStack.getItemMeta();
            if (itemMeta == null) {
                continue;
            }
            PersistentDataContainer container = itemMeta.getPersistentDataContainer();

            // generate a hash if the item doesn't have one (if it's enabled in the config)
            if (toolStats.config.getBoolean("generate-hash-for-items")) {
                if (!container.has(toolStats.hash, PersistentDataType.STRING)) {
                    // make sure the item has an owner
                    if (!container.has(toolStats.genericOwner, new UUIDDataType())) {
                        continue;
                    }
                    UUID owner = container.get(toolStats.genericOwner, new UUIDDataType());
                    if (owner == null) {
                        continue;
                    }
                    Long timestamp = container.get(toolStats.timeCreated, PersistentDataType.LONG);
                    if (timestamp == null) {
                        continue;
                    }
                    String hash = toolStats.hashMaker.makeHash(itemStack.getType(), owner, timestamp);
                    toolStats.logger.info(hash);
                    container.set(toolStats.hash, PersistentDataType.STRING, hash);
                }
            }
            ItemMeta clone = itemMeta.clone();
            BukkitRunnable runnable = new BukkitRunnable() {
                @Override
                public void run() {
                    itemStack.setItemMeta(clone);
                }
            };
            if (location != null) {
                toolStats.scheduleRegion(runnable, location.getWorld(), location.getChunk(), 1);
            }
        }
    }
}