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


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


using static ClientToGameReq.Types;
using static ClientToGameRes.Types;



namespace GameServer.PacketHandler;

[PacketHandler(typeof(ClientToGameReq), typeof(ClientToGameReq.Types.LeaveInstanceRoomReq), typeof(LeaveInstanceRoomPacketHandler), typeof(GameLoginListener))]
internal class LeaveInstanceRoomPacketHandler : PacketRecvHandler
{
    public static bool send_S2C_ACK_LEAVE_INSTANCE_ROOM(Player owner, Result result, LeaveInstanceRoomRes res)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.LeaveInstanceRoomRes = res;

        if (false == GameServerApp.getServerLogic().onSendPacket(owner, ack_packet))
        {
            return false;
        }

        return true;
    }

    public override async Task<Result> onProcessPacket(ISession entityWithSession, Google.Protobuf.IMessage recvMessage)
    {
        var result = new Result();
        var err_msg = string.Empty;

        var server_logic = GameServerApp.getServerLogic();

        var entity_player = entityWithSession as Player;
        NullReferenceCheckHelper.throwIfNull(entity_player, () => "player is null !!!");

        var req_msg = recvMessage as ClientToGame;
        ArgumentNullReferenceCheckHelper.throwIfNull(req_msg, () => $"req_msg is null !!! - {entity_player.toBasicString()}");

        var request = req_msg.Request.LeaveInstanceReq;
        var res = new LeaveInstanceRoomRes();

        var game_zone_action = entity_player.getEntityAction<GameZoneAction>();
        NullReferenceCheckHelper.throwIfNull(game_zone_action, () => $"game_zone_action is null !!! - {entity_player.toBasicString()}");

        var fn_transaction_runner = async delegate ()
        {
            var result = new Result();

            (result, res) = await game_zone_action.tryLeaveInstanceRoom();
            if (result.isFail())
            {
                err_msg = $"Failed to tryLeaveInstanceRoom() !!! : {result.toBasicString()} - {entity_player.toBasicString()}";
                Log.getLogger().error(err_msg);

                send_S2C_ACK_LEAVE_INSTANCE_ROOM(entity_player, result, res);
                return result;
            }

            var batch = new QueryBatchEx<QueryRunnerWithDocument>(entity_player, LogActionType.None, server_logic.getDynamoDbClient());
            {
                batch.addQuery(new DBQWriteToAttributeAllWithTransactionRunner());
                batch.addQuery(new QueryFinal());
            }

            result = await QueryHelper.sendQueryAndBusinessLog(batch);
            if (result.isFail())
            {
                send_S2C_ACK_LEAVE_INSTANCE_ROOM(entity_player, result, res);
                return result;
            }

            send_S2C_ACK_LEAVE_INSTANCE_ROOM(entity_player, result, res);
            return result;
        };

        result = await entity_player.runTransactionRunnerSafely(TransactionIdType.PrivateContents, "LeaveInstanceRoom", fn_transaction_runner);
        if (result.isFail())
        {
            err_msg = $"Failed to runTransactionRunnerSafely() !!! : {result.toBasicString()} - {entity_player.toBasicString()}";
            Log.getLogger().error(err_msg);
        }

        return result;
    }
}