/*
 * Copyright (C) 2023 Velocity Contributors
 *
 * This program 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.
 *
 * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package com.velocitypowered.proxy.protocol.packet.chat;

import com.velocitypowered.api.network.ProtocolVersion;
import com.velocitypowered.proxy.connection.MinecraftSessionHandler;
import com.velocitypowered.proxy.protocol.MinecraftPacket;
import com.velocitypowered.proxy.protocol.ProtocolUtils;
import io.netty.buffer.ByteBuf;

/**
 * Represents a packet sent to acknowledge the receipt of a chat message.
 * This packet is used to confirm that a player or client has received and processed
 * a chat message from the server.
 */
public class ChatAcknowledgementPacket implements MinecraftPacket {
  int offset;

  public ChatAcknowledgementPacket(int offset) {
    this.offset = offset;
  }

  public ChatAcknowledgementPacket() {
  }

  @Override
  public void decode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion protocolVersion) {
    offset = ProtocolUtils.readVarInt(buf);
  }

  @Override
  public void encode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion protocolVersion) {
    ProtocolUtils.writeVarInt(buf, offset);
  }

  @Override
  public boolean handle(MinecraftSessionHandler handler) {
    return handler.handle(this);
  }

  @Override
  public String toString() {
    return "ChatAcknowledgement{"
        + "offset=" + offset
        + '}';
  }

  public int offset() {
    return offset;
  }
}
