/*
 * Copyright (c) 2019-2020 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.connector.network.translators.bedrock;

import com.github.steveice10.mc.protocol.packet.ingame.client.window.ClientMoveItemToHotbarPacket;
import com.nukkitx.math.vector.Vector3i;
import com.nukkitx.protocol.bedrock.packet.BlockPickRequestPacket;
import com.nukkitx.protocol.bedrock.packet.PlayerHotbarPacket;
import org.geysermc.connector.inventory.Inventory;
import org.geysermc.connector.network.session.GeyserSession;
import org.geysermc.connector.network.translators.PacketTranslator;
import org.geysermc.connector.network.translators.Translator;
import org.geysermc.connector.network.translators.item.ItemEntry;
import org.geysermc.connector.network.translators.item.ItemRegistry;
import org.geysermc.connector.network.translators.world.block.BlockTranslator;

@Translator(packet = BlockPickRequestPacket.class)
public class BedrockBlockPickRequestPacketTranslator extends PacketTranslator<BlockPickRequestPacket> {

    @Override
    public void translate(BlockPickRequestPacket packet, GeyserSession session) {
        Vector3i vector = packet.getBlockPosition();
        int blockToPick = session.getConnector().getWorldManager().getBlockAt(session, vector.getX(), vector.getY(), vector.getZ());
        
        // Block is air - chunk caching is probably off
        if (blockToPick == 0) {
            return;
        }

        // Get the inventory to choose a slot to pick
        Inventory inventory = session.getInventoryCache().getOpenInventory();
        if (inventory == null) {
            inventory = session.getInventory();
        }

        String targetIdentifier = BlockTranslator.getJavaIdBlockMap().inverse().get(blockToPick).split("\\[")[0];

        // Check hotbar for item
        for (int i = 36; i < 45; i++) {
            if (inventory.getItem(i) == null) {
                continue;
            }
            ItemEntry item = ItemRegistry.getItem(inventory.getItem(i));
            // If this isn't the item we're looking for
            if (!item.getJavaIdentifier().equals(targetIdentifier)) {
                continue;
            }
            
            PlayerHotbarPacket hotbarPacket = new PlayerHotbarPacket();
            hotbarPacket.setContainerId(0);
            // Java inventory slot to hotbar slot ID
            hotbarPacket.setSelectedHotbarSlot(i - 36);
            hotbarPacket.setSelectHotbarSlot(true);
            session.sendUpstreamPacket(hotbarPacket);
            session.getInventory().setHeldItemSlot(i - 36);
            // Don't check inventory if item was in hotbar
            return;
        }

        // Check inventory for item
        for (int i = 9; i < 36; i++) {
            if (inventory.getItem(i) == null) {
                continue;
            }
            ItemEntry item = ItemRegistry.getItem(inventory.getItem(i));
            // If this isn't the item we're looking for
            if (!item.getJavaIdentifier().equals(targetIdentifier)) {
                continue;
            }
            
            ClientMoveItemToHotbarPacket packetToSend = new ClientMoveItemToHotbarPacket(i); // https://wiki.vg/Protocol#Pick_Item
            session.sendDownstreamPacket(packetToSend);
            return;
        }
    }
}