/*
 * 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.hyperlib.datatypes.UUIDDataType;
import lol.hyper.toolstats.ToolStats;
import net.kyori.adventure.text.Component;
import org.bukkit.GameMode;
import org.bukkit.Material;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockDispenseLootEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.persistence.PersistentDataContainer;
import org.bukkit.persistence.PersistentDataType;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Objects;

public class BlockDispenseEvent implements Listener {

    private final ToolStats toolStats;

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

    @EventHandler(priority = EventPriority.HIGHEST)
    public void onDispense(BlockDispenseLootEvent event) {
        Player player = event.getPlayer();
        if (player == null) {
            return;
        }

        if (toolStats.config.getStringList("blacklist-worlds").contains(player.getWorld().getName())) {
            return;
        }
        if (player.getGameMode() == GameMode.CREATIVE && !toolStats.config.getBoolean("allow-creative")) {
            return;
        }

        List<ItemStack> loot = event.getDispensedLoot();
        // probably won't ever happen
        if (loot.isEmpty()) {
            return;
        }

        List<ItemStack> newLoot = new ArrayList<>();
        for (ItemStack lootItem : loot) {
            ItemStack newLootItem = lootItem.clone();
            Material lootItemMaterial = newLootItem.getType();
            // if the item is one we want, do stuff
            if (toolStats.itemChecker.isValidItem(lootItemMaterial)) {
                newLootItem = addLootedOrigin(newLootItem, player);
            }

            // if the item returned null, add the original item
            newLoot.add(Objects.requireNonNullElse(newLootItem, lootItem));
        }
        event.setDispensedLoot(newLoot);
    }

    /**
     * Adds lore to newly generated items.
     *
     * @param itemStack The item to add lore to.
     * @param owner     The player that found the item.
     * @return The item with the lore.
     */
    private ItemStack addLootedOrigin(ItemStack itemStack, Player owner) {
        ItemStack newItem = itemStack.clone();
        ItemMeta meta = itemStack.getItemMeta();
        if (meta == null) {
            return null;
        }
        long timeCreated = System.currentTimeMillis();
        Date finalDate;
        if (toolStats.config.getBoolean("normalize-time-creation")) {
            finalDate = toolStats.numberFormat.normalizeTime(timeCreated);
            timeCreated = finalDate.getTime();
        }
        PersistentDataContainer container = meta.getPersistentDataContainer();

        if (container.has(toolStats.toolStatsKeys.getTimeCreated(), PersistentDataType.LONG) || container.has(toolStats.toolStatsKeys.getItemOwner(), new UUIDDataType())) {
            return null;
        }

        // get the current lore the item
        List<Component> lore;
        if (meta.hasLore()) {
            lore = meta.lore();
        } else {
            lore = new ArrayList<>();
        }

        // if creation date is enabled, add it
        Component creationDate = toolStats.itemLore.formatCreationTime(timeCreated, 2, newItem);
        if (creationDate != null) {
            container.set(toolStats.toolStatsKeys.getTimeCreated(), PersistentDataType.LONG, timeCreated);
            container.set(toolStats.toolStatsKeys.getOriginType(), PersistentDataType.INTEGER, 2);
            lore.add(creationDate);
            meta.lore(lore);
        }

        // if ownership is enabled, add it
        Component itemOwner = toolStats.itemLore.formatOwner(owner.getName(), 2, newItem);
        if (itemOwner != null) {
            container.set(toolStats.toolStatsKeys.getItemOwner(), new UUIDDataType(), owner.getUniqueId());
            container.set(toolStats.toolStatsKeys.getOriginType(), PersistentDataType.INTEGER, 2);
            lore.add(itemOwner);
            meta.lore(lore);
        }

        // if hash is enabled, add it
        if (toolStats.config.getBoolean("generate-hash-for-items")) {
            String hash = toolStats.hashMaker.makeHash(newItem.getType(), owner.getUniqueId(), timeCreated);
            container.set(toolStats.toolStatsKeys.getHash(), PersistentDataType.STRING, hash);
        }

        newItem.setItemMeta(meta);
        return newItem;
    }
}