content: package emu.grasscutter.server.packet.recv;
  
  import emu.grasscutter.data.GameData;
  import emu.grasscutter.data.binout.MainQuestData;
  import emu.grasscutter.data.binout.MainQuestData.TalkData;
  import emu.grasscutter.game.inventory.GameItem;
  import emu.grasscutter.game.quest.GameMainQuest;
  import emu.grasscutter.game.quest.enums.ParentQuestState;
  import emu.grasscutter.game.quest.enums.QuestTrigger;
  import emu.grasscutter.net.packet.Opcodes;
  import emu.grasscutter.net.packet.PacketOpcodes;
  import emu.grasscutter.net.proto.NpcTalkReqOuterClass.NpcTalkReq;
  import emu.grasscutter.net.packet.PacketHandler;
  import emu.grasscutter.server.game.GameSession;
  import emu.grasscutter.server.packet.send.PacketNpcTalkRsp;
  
  @Opcodes(PacketOpcodes.NpcTalkReq)
  public class HandlerNpcTalkReq extends PacketHandler {
      @Override
      public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
          NpcTalkReq req = NpcTalkReq.parseFrom(payload);
  
          //Check if mainQuest exists
          //remove last 2 digits to get a mainQuestId
          int talkId = req.getTalkId();
          int mainQuestId = talkId/100;
          MainQuestData mainQuestData = GameData.getMainQuestDataMap().get(mainQuestId);
  
          if (mainQuestData != null) {
              // This talk is associated with a quest. Handle it.
              // If the quest has no talk data defined on it, create one.
              TalkData talkForQuest = new TalkData(talkId, "");
              if (mainQuestData.getTalks() != null) {
                  var talks = mainQuestData.getTalks().stream().filter(p -> p.getId() == talkId).toList();
  
                  if (talks.size() > 0) {
                      talkForQuest = talks.get(0);
                  }
              }
  
              // Add to the list of done talks for this quest.
              var mainQuest = session.getPlayer().getQuestManager().getMainQuestById(mainQuestId);
              if (mainQuest != null) {
                  session.getPlayer().getQuestManager().getMainQuestById(mainQuestId).getTalks().put(talkId, talkForQuest);
              }
  
              // Fire quest triggers.
              session.getPlayer().getQuestManager().triggerEvent(QuestTrigger.QUEST_CONTENT_COMPLETE_ANY_TALK, String.valueOf(req.getTalkId()), 0, 0);
              session.getPlayer().getQuestManager().triggerEvent(QuestTrigger.QUEST_CONTENT_COMPLETE_TALK, req.getTalkId(), 0);
              session.getPlayer().getQuestManager().triggerEvent(QuestTrigger.QUEST_CONTENT_FINISH_PLOT, req.getTalkId(), 0);
          }
  
          session.send(new PacketNpcTalkRsp(req.getNpcEntityId(), req.getTalkId(), req.getEntityId()));
      }
  }
  