/*
 * Copyright (c) 2019-2024 GeyserMC. http://geysermc.org
 *
 * 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.
 *
 * @author GeyserMC
 * @link https://github.com/GeyserMC/Geyser
 */

package org.geysermc.geyser.translator.protocol.java.inventory;

import com.github.steveice10.mc.protocol.data.game.inventory.ContainerType;
import com.github.steveice10.mc.protocol.packet.ingame.clientbound.inventory.ClientboundOpenBookPacket;
import com.github.steveice10.mc.protocol.packet.ingame.serverbound.inventory.ServerboundContainerClosePacket;
import org.geysermc.geyser.inventory.GeyserItemStack;
import org.geysermc.geyser.inventory.Inventory;
import org.geysermc.geyser.inventory.LecternContainer;
import org.geysermc.geyser.item.Items;
import org.geysermc.geyser.network.GameProtocol;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.translator.inventory.InventoryTranslator;
import org.geysermc.geyser.translator.protocol.PacketTranslator;
import org.geysermc.geyser.translator.protocol.Translator;
import org.geysermc.geyser.util.InventoryUtils;

import java.util.Objects;

@Translator(packet = ClientboundOpenBookPacket.class)
public class JavaOpenBookTranslator extends PacketTranslator<ClientboundOpenBookPacket> {

    /**
     * Unlike other fake inventories that rely on placing blocks in the world;
     * the virtual lectern workaround for books isn't triggered the same way.
     * Specifically, we don't get a window id - hence, we just use our own!
     */
    private final static int FAKE_LECTERN_WINDOW_ID = -69;

    @Override
    public void translate(GeyserSession session, ClientboundOpenBookPacket packet) {
        GeyserItemStack stack = session.getPlayerInventory().getItemInHand();

        // Don't spawn a fake lectern for books already opened "normally" by the client.
        if (stack.getItemData(session).equals(session.getCurrentBook())) {
            session.setCurrentBook(null);
            return;
        }

        // Only post 1.20.60 is it possible to tell the client to open a lectern.
        if (!GameProtocol.is1_20_60orHigher(session.getUpstream().getProtocolVersion())) {
            return;
        }

        if (stack.asItem().equals(Items.WRITTEN_BOOK)) {
            Inventory openInventory = session.getOpenInventory();
            if (openInventory != null) {
                InventoryUtils.closeInventory(session, openInventory.getJavaId(), true);

                ServerboundContainerClosePacket closeWindowPacket = new ServerboundContainerClosePacket(openInventory.getJavaId());
                session.sendDownstreamGamePacket(closeWindowPacket);
            }

            InventoryTranslator translator = InventoryTranslator.inventoryTranslator(ContainerType.LECTERN);
            session.setInventoryTranslator(translator);

            // Should never be null
            Objects.requireNonNull(translator, "lectern translator must exist");
            Inventory inventory = translator.createInventory("", FAKE_LECTERN_WINDOW_ID, ContainerType.LECTERN, session.getPlayerInventory());
            ((LecternContainer) inventory).setFakeLecternBook(stack, session);
            InventoryUtils.openInventory(session, inventory);
        }
    }
}