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

package emu.grasscutter.server.packet.recv;

import emu.grasscutter.game.mail.Mail;
import emu.grasscutter.net.packet.Opcodes;
import emu.grasscutter.net.packet.PacketHandler;
import emu.grasscutter.net.packet.PacketOpcodes;
import emu.grasscutter.net.proto.GetAllMailReqOuterClass;
import emu.grasscutter.net.proto.ReadMailNotifyOuterClass;
import emu.grasscutter.server.game.GameSession;
import emu.grasscutter.server.packet.send.PacketMailChangeNotify;

import java.util.ArrayList;
import java.util.List;

@Opcodes(PacketOpcodes.ReadMailNotify)
public class HandlerReadMailNotify extends PacketHandler {

    @Override
    public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
        ReadMailNotifyOuterClass.ReadMailNotify req = ReadMailNotifyOuterClass.ReadMailNotify.parseFrom(payload);

        List<Mail> updatedMail = new ArrayList<>();

        for (int mailId : req.getMailIdListList()) {
            Mail message = session.getPlayer().getMail(mailId);

            message.isRead = true;

            session.getPlayer().replaceMailByIndex(mailId, message);
            updatedMail.add(message);
        }

        session.send(new PacketMailChangeNotify(session.getPlayer(), updatedMail));
    }
}