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.WarpReq), typeof(WarpPacketHandler), typeof(GameLoginListener))]
internal class WarpPacketHandler : PacketRecvHandler
{
    public static bool send_S2C_ACK_WARP(Player owner, Result result, WarpRes res)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.WarpRes = 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 player = entityWithSession as Player;
        ArgumentNullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!!");
        var req_msg = recvMessage as ClientToGame;
        ArgumentNullReferenceCheckHelper.throwIfNull(req_msg, () => $"req_msg is null !!! - {player.toBasicString()}");
        var request = req_msg.Request.WarpReq;
        ArgumentNullReferenceCheckHelper.throwIfNull(request, () => $"request is null !!! - {player.toBasicString()}");

        var result = new Result();
        var err_msg = string.Empty;

        var res = new WarpRes();

        var server_logic = GameServerApp.getServerLogic();

        var player_action = player.getEntityAction<PlayerAction>();
        NullReferenceCheckHelper.throwIfNull(player_action, () => $"player_action is null !!! - {player.toBasicString()}");

        var selected_character = player_action.getSelectedCharacter();
        if (null == selected_character)
        {
            err_msg = $"Not selected Character !!! - {player.toBasicString()}";
            result.setFail(ServerErrorCode.CharacterNotSelected, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_S2C_ACK_WARP(player, result, res);
            return result;
        }

        var game_zone_move_action = player.getEntityAction<GameZoneMoveAction>();
        NullReferenceCheckHelper.throwIfNull(game_zone_move_action, () => $"game_zone_move_action is null !!! - {player.toBasicString()}");

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

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

            (result, res, var business_logs) = await game_zone_move_action.tryWarp(request.WarpId);
            if (result.isFail())
            {
                err_msg = $"Failed to tryWarp() !!! : {result.toBasicString()}";
                Log.getLogger().error(err_msg);

                send_S2C_ACK_WARP(player, result, res);
                return result;
            }
            NullReferenceCheckHelper.throwIfNull(business_logs, () => $"business_logs is null !!! - {player.toBasicString()}");

            var batch = new QueryBatchEx<QueryRunnerWithDocument>(player, LogActionType.Warp, server_logic.getDynamoDbClient());
            {
                batch.addQuery(new DBQWriteToAttributeAllWithTransactionRunner());
                batch.addQuery(new QueryFinal());
            }

            batch.appendBusinessLogs(business_logs);

            result = await QueryHelper.sendQueryAndBusinessLog(batch);
            if (result.isFail())
            {
                err_msg = $"Failed to sendQueryAndBusinessLog() !!! : {result.toBasicString()} - {player.toBasicString()}";
                Log.getLogger().error(err_msg);

                send_S2C_ACK_WARP(player, result, res);
                return result;
            }

            send_S2C_ACK_WARP(player, result, res);
            if (res.PlaceCase == WarpRes.PlaceOneofCase.Pos)
            {
                result = game_zone_action.tryMove(res.Pos);
                if (result.isFail())
                {
                    err_msg = $"Failed to tryMove at {this.getTypeName()} !!! : {result.toBasicString()} - {player.toBasicString()}";
                    Log.getLogger().error(err_msg);

                    return result;
                }
            }

            return result;
        };

        var transaction_name = "Warp";
        result = await player.runTransactionRunnerSafely(TransactionIdType.PrivateContents, transaction_name, fn_transaction_runner);
        if (result.isFail())
        {
            err_msg = $"Failed to runTransactionRunnerSafely() !!! : {result.toBasicString()} - transactionName:{transaction_name}, {player.toBasicString()}";
            Log.getLogger().error(err_msg);
            return result;
        }

        return result;
    }
}