using Google.Protobuf;
using Google.Protobuf.WellKnownTypes;


using ServerCore;
using ServerBase;
using ServerCommon;
using ServerCommon.BusinessLogDomain;
using MetaAssets;


namespace GameServer.PacketHandler;

[PacketHandler(typeof(ClientToGameReq), typeof(ClientToGameReq.Types.C2GS_REQ_UGQ_FIND_NPC), typeof(FindUgqNpcPacketHandler), typeof(GameLoginListener))]
public class FindUgqNpcPacketHandler : PacketRecvHandler
{
    public override async Task<Result> onProcessPacket(ISession session, IMessage recvMessage)
    {
        var result = new Result();
        var player = session as Player;
        NullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!!");

        var req_msg = recvMessage as ClientToGame;
        NullReferenceCheckHelper.throwIfNull(req_msg, () => $"req_msg is null !!! - {player.toBasicString()}");
        
        var owner_guid = req_msg.Request.ReqUgqFindNpc.OwnerGuid;
        var ugq_npc_meta_guid = req_msg.Request.ReqUgqFindNpc.NpcGuid;

        (result, var npc_attrib) = await UgcNpcDoc.findUgcNpc(owner_guid, ugq_npc_meta_guid);
        send_GS2C_ACK_UGQ_FIND_NPC(player, result, npc_attrib);

        return result;
    }


    public static Result send_GS2C_ACK_UGQ_FIND_NPC(Player player, Result result, UgcNpcAttrib? npcAttrib)
    {
        ClientToGame ack_packet = new();
        ack_packet.Response = new();
        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.AckUgqFindNpc= new();
        if (npcAttrib is not null)
        {
            ack_packet.Response.AckUgqFindNpc.UgcNpc = UgqMetaHelper.copyToUgcNpc(npcAttrib);
        }

        var server_logic = GameServerApp.getServerLogic();
        if (false == server_logic.onSendPacket(player, ack_packet))
        {
            var err_msg = $"send_GS2C_ACK_UGQ_FIND_NPC Fail !!! : owner:{player.toBasicString()}";
            result.setFail(ServerErrorCode.ProudNetException, err_msg);
            Log.getLogger().error(result.toBasicString());

            return result;
        }
        return result;
    }
}