Grasscutter/src/main/java/emu/grasscutter/server/packet/recv/HandlerPlayerLoginReq.java

package emu.grasscutter.server.packet.recv;

import emu.grasscutter.Grasscutter;
import emu.grasscutter.database.DatabaseHelper;
import emu.grasscutter.game.player.Player;
import emu.grasscutter.net.packet.BasePacket;
import emu.grasscutter.net.packet.Opcodes;
import emu.grasscutter.net.packet.PacketOpcodes;
import emu.grasscutter.net.proto.PlayerLoginReqOuterClass.PlayerLoginReq;
import emu.grasscutter.net.packet.PacketHandler;
import emu.grasscutter.server.game.GameSession;
import emu.grasscutter.server.game.GameSession.SessionState;
import emu.grasscutter.server.packet.send.PacketPlayerLoginRsp;
import emu.grasscutter.server.packet.send.PacketTakeAchievementRewardReq;

import static emu.grasscutter.Configuration.ACCOUNT;

@Opcodes(PacketOpcodes.PlayerLoginReq) // Sends initial data packets
public class HandlerPlayerLoginReq extends PacketHandler {

	@Override
	public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
		// Check
		if (session.getAccount() == null) {
			session.close();
			return;
		}

		// Parse request
		PlayerLoginReq req = PlayerLoginReq.parseFrom(payload);

		// Authenticate session
		if (!req.getToken().equals(session.getAccount().getToken())) {
			session.close();
			return;
		}

		// Load character from db
		Player player = session.getPlayer();

		// Show opening cutscene if player has no avatars
		if (player.getAvatars().getAvatarCount() == 0) {
			// Pick character
			session.setState(SessionState.PICKING_CHARACTER);
			session.send(new BasePacket(PacketOpcodes.DoSetPlayerBornDataNotify));
		} else {
			// Login done
			session.getPlayer().onLogin();
		}

		// Final packet to tell client logging in is done
		session.send(new PacketPlayerLoginRsp(session));
		session.send(new PacketTakeAchievementRewardReq(session));
	}

}